WO2001010664A1 - Assembly consisting of a clutch associated with an electric machine, in particular for motor vehicle - Google Patents

Assembly consisting of a clutch associated with an electric machine, in particular for motor vehicle Download PDF

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Publication number
WO2001010664A1
WO2001010664A1 PCT/FR2000/002296 FR0002296W WO0110664A1 WO 2001010664 A1 WO2001010664 A1 WO 2001010664A1 FR 0002296 W FR0002296 W FR 0002296W WO 0110664 A1 WO0110664 A1 WO 0110664A1
Authority
WO
WIPO (PCT)
Prior art keywords
primary
flywheel
assembly according
skirt
springs
Prior art date
Application number
PCT/FR2000/002296
Other languages
French (fr)
Inventor
Michel Graton
Original Assignee
Valeo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR9910373A external-priority patent/FR2791009B1/en
Application filed by Valeo filed Critical Valeo
Priority to AU70113/00A priority Critical patent/AU7011300A/en
Priority to KR1020017004475A priority patent/KR20010075606A/en
Priority to DE10082715T priority patent/DE10082715T1/en
Publication of WO2001010664A1 publication Critical patent/WO2001010664A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B60K6/405—Housings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K6/485—Motor-assist type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

Definitions

  • Assembly consisting of a clutch associated with an electric machine, in particular for a motor vehicle
  • the present invention relates to a clutch associated with an electric machine, in particular for a motor vehicle.
  • a clutch in particular for a motor vehicle, generally comprises a clutch mechanism essentially consisting of a cover, a pressure plate and engagement means intended to tighten at least one friction lining, carried by a friction disc, between the pressure plate and a reaction plate belonging to a flywheel stalled in rotation on the crankshaft of the internal combustion engine.
  • flywheel of the double type, or double damping flywheel of the type comprising a primary flywheel intended to be connected to the crankshaft of the vehicle engine and a secondary flywheel intended to receive the clutch ; circumferential action torsional damping means are kinematically disposed between the primary and secondary flywheels; as is known, such an arrangement allows excellent filtering of the torsional oscillations generated by the engine, particularly in low revs, with the consequence of a significant reduction in noise, in particular in the gearbox.
  • the present invention relates to an assembly consisting of a clutch associated with an electric machine, in particular for a motor vehicle wherein the wheel is a double damping flywheel, said assembly for better erase ac 'yclismes, of the sinusoidal type, internal combustion engine.
  • an assembly comprising a clutch associated with an electric machine, in particular for a motor vehicle equipped with a double damping flywheel of the kind comprising a primary flywheel intended to be connected to the crankshaft of the vehicle engine and a secondary flywheel intended to receive the clutch clutch mechanism which comprises a cover, clutch-declutching means and a pressure plate, torsional damping means with circumferential action being kinematically disposed between the primary and secondary flywheels, the elastic means being constituted by springs arranged circumferentially and bearing on one side on the primary flywheel and on the other side on the secondary flywheel, said springs being distributed in two rows offset axially.
  • the torsion damping means have a small radial size, which leads to a compact assembly well suited to the application to a motor vehicle, and are liable to a large angular clearance, in particular when the springs of the two rows are in series.
  • FIG. 1 is a sectional view of an assembly according to the invention
  • Figures 2 and 3 are similar to Figure 1 and each show an overall variant according to the invention.
  • an assembly according to the invention comprises a double damping flywheel 100, an electric machine 150 and a clutch mechanism 160.
  • the double flywheel 100 comprises a primary flywheel 111 and a secondary flywheel 112.
  • the primary flywheel 111 has a central hub 113 by which it is connected, here by screws 14, to the crankshaft 1 of the engine of the motor vehicle ;
  • the primary flywheel 111 is of revolution, with a C-shaped axial section, and has an external skirt 115 called primary, of annular shape and of axial orientation.
  • the secondary flywheel 112 comprises a plate 116 of annular shape of transverse orientation provided at its internal periphery with an annular flange 117.
  • the secondary flywheel 112 is intended to receive a clutch mechanism 160, as described below, and constitutes a reaction plate adapted to cooperate with a friction disc associated with the clutch mechanism 160.
  • the secondary flywheel 112 is thus intended to be disengageably linked in rotation to the input shaft 2 of the gearbox, via the clutch mechanism 160, forming a unitary assembly.
  • Circumferential action torsional damping means are kinematically disposed between the primary 111 and secondary 112 flywheels; these torsion damping means comprise elastic means with circumferential action and friction means with axial action.
  • the internal flange 117 of the secondary flywheel 112 carries, applied on its face facing the primary flywheel 111, a crown 119 which is fixed to it by screws 120.
  • a bearing means here a ball bearing 121, is placed between the periphery internal of the crown 119 and the external periphery of the central hub 113 of the primary flywheel 111, the primary 111 and secondary 112 flywheels being caused to rotate relative to one another.
  • the internal cylindrical bearing surface of the internal race, called the internal ring, of the bearing 121 is machined at the end of the central hub 113, at the external periphery of the latter, so that a transverse bearing surface 122 is axially wedged by a side of the internal race with respect to the central hub 113; on the other side, this is wedged by a washer 123 with holes for the passage of the screws 14, the head of which applies the washer 123 to the internal raceway and the front face of the central hub 113 with respect to which said raceway internal bearing is therefore locked axially in both directions.
  • the primary flywheel 111 with its primary skirt 115 and its central hub 113 defines, in cooperation with the secondary flywheel 112, the crown 119 and the bearing 122, an annular volume 124 in which the torsion damping means are placed.
  • the elastic means are coil springs 25 here of the concentric type extending circumferentially distributed in two rows offset axially and bearing on one side on the primary flywheel 111 and on the other side on the secondary flywheel 112.
  • the supports on the secondary flywheel side 112, called secondary supports, of the springs of a row, consist of a radial edge 126 of a notch cut out at the external periphery of a generally transverse web 127. the notch is open to the outside.
  • the veil 127 here metallic, is secured by its internal periphery to the crown 119, here by rivets 128 which press the veil 127 on the transverse face of the crown 119 facing the primary flywheel 111.
  • the veil 127 extends towards the axis to the right of the outer race, called the outer ring, of the bearing 121 so as to wedge it on one side axially with respect to the ring 119; the external cylindrical bearing surface of the external raceway is machined on only a fraction of the internal periphery of the crown 119 so that a transverse bearing surface 129 is defined axially wedging on the other side this external raceway relative to the crown 119: thus, this external raceway is wedged on both sides relative to said crown 119.
  • the supports on the primary flywheel side 111 called primary supports, for these springs 25 are pairs of supports, the supports of each pair being arranged axially on either side of the web 127: one of these supports is constituted by the radial face of a support shoe 130 secured to the primary flywheel 111 by rivets 131; the other support 130 is carried by the bottom 134 of a cup-shaped sheet metal part 133; the bottom 134 is provided with a central opening through which it surrounds the crown 119 while being at the right of the latter.
  • the bottom 134 of the section 133 extends along an axial cylindrical edge, which runs along the primary skirt 115, in contact with the internal periphery of the latter in which it fits; this edge ends with a transverse rim 137 pressed against the transverse end face of the primary skirt 115 by screws securing the section 133 to the primary flywheel 111.
  • the primary skirt 115 of the primary flywheel 111 surrounds the two rows of springs 25 arranged side by side axially, - the springs 25 of the two rows are kinematically coupled in parallel.
  • the bottom 134 of the section 133 carries support pads 130 arranged back to back; an additional web 127A cooperates, here by means of notches open towards the outside, with the springs 25 of the row arranged on the side of the clutch mechanism 160; these same springs 25 also cooperate with support pads 130, placed opposite the pads 130 carried by the bottom 134 of the cup 133 and secured to a support flange 134A.
  • the veil 127A is disposed axially between the crown 119 and the flange 117, here in the form of a hub, of the secondary flywheel 112 by being fixed by the screws 120 which secure, by its flange 117, the secondary flywheel 112 to the crown 123.
  • the crown 119 carries a sleeve 119A directed towards the clutch mechanism 160, of diameter smaller than that of the crown 119, for centering the web 127A and the flange 117 of the secondary flywheel 112.
  • the sleeve 119A also constitutes an axial stop for the external raceway of bearing 121.
  • the support flange 134A is fixed at the end of the primary skirt 115 by the same screws which fix by its rim 137 the section 133 to the primary skirt 115; the support flange 134A projects radially beyond the external periphery of the primary skirt 115 to constitute an axial stop for the rotor 151 of the machine 150 mounted for example by hooping on the periphery of said primary skirt 115.
  • the springs 25 of the two rows springs are supported, on one side, on the primary flywheel 111 by means of the support pads 130 and, on the other side, on the secondary flywheel 112 by means of the sails 127 and 127A, knowing that the bottom 134 serves as a support for two series of pads 130 arranged on either side of the bottom 134.
  • the washer 123 is very thick and secured to the central hub 113 of the primary flywheel 111 for constituting a first sub-assembly comprising in particular the primary flywheel 111 carrying the springs 25, the cut 133, the support plate 134A, the bearing 121, the rotor 151 and the washer 123.
  • the plate 116 of the secondary flywheel 112, with which the lining of the friction disc 170 cooperates, extends radially, from its hub-shaped flange 117, beyond the rotor 151, along the support flange 137A and the rotor 151 , its face turned towards the primary flywheel 111 conforming to the shapes thereof.
  • the friction disc 170 is unique and therefore of larger diameter than that on which the springs 25 extend; the cover 161 of the clutch mechanism 160 is here hollow in shape and secured to the periphery of the plate 116 of the secondary flywheel 112 by the screws 68; a second sub-assembly is thus formed, comprising the secondary flywheel 112, the friction disc 170 and the clutch mechanism 160; the second sub-assembly and the first sub-assembly are secured by the screws 120 through passages 170A formed in the web of the hub of the friction disc 170; other passages 170B made in this veil allow the assembly of the assembly of the two sub-assemblies on the motor shaft 1 by the screws 14.
  • the friction means of the torsion damping means comprise a friction washer 140 surrounding the central hub 113 of the primary flywheel 111 and having at its periphery at least one notch 141 adapted to receive with or without play an axial tab 139 coming from the internal periphery of the web 127 by cutting and folding thereof.
  • the friction washer 140 is pressed against the internal face of the bottom of the primary flywheel 111 in the form of C by means of an elastic clamping washer 142 with axial action, conventionally a Belleville washer, by means of a washer of application 143, the elastic washer 142 resting on a circlip 144 carried by the central hub 113.
  • the assembly is housed inside a fixed clutch bell 3 of the motor vehicle.
  • the electric machine 150 is arranged around the double flywheel 110; it comprises a rotor 151 and a stator 152 coaxial, a gap 153 existing between the rotor 151 and the stator 152; the rotor 151 comprises permanent magnets and is carried by the primary flywheel 111, at the external periphery of the primary skirt 115 to which it is secured, for example by shrinking.
  • the stator 152 has electrical windings 154 and is carried internally by the clutch bell 3.
  • the clutch mechanism 160 comprises a cover 161, a pressure plate 162 and a diaphragm 163.
  • the cover 161 is metallic, here in stamped sheet metal; it has a bottom 164, perforated centrally, generally of transverse orientation, perpendicular to the axis of the assembly, provided at its outer periphery with an annular rim 165 for fixing; the cover 161 thus has the overall shape of a deep dish.
  • a clutch comprises engaging means associated with declutching means; these can be declutching levers which can act on helical springs with axial action constituting the engagement means; alternatively, the release levers are constituted by fingers belonging to the central part of a part whose external periphery is axially elastic or devoid of axial elasticity, acting on a Belleville washer forming the engagement means.
  • the engaging and declutching means belong to the same part, the diaphragm 163, which comprises a peripheral part in the shape of a Belleville washer extended internally by a central part fragmented into radial fingers by blind slots opening internally into a central opening presented by the diaphragm 163 whose shape, in the free state, is frustoconical.
  • the slots open at their outer periphery into enlarged orifices forming the bottom of the slots.
  • the fingers of the diaphragm 163 form declutching levers and therefore the declutching means, while the peripheral part, in the form of a Belleville washer, of the diaphragm 163 constitutes the clutch engaging means, said orifices being located at the internal periphery of the Belleville washer of diaphragm 163.
  • the declutching means are provided to counteract at will the action of the clutching means under the action of a declutching stop.
  • the stop 66 can be actuated by a declutching fork pivotally mounted, for example by means of a ball joint, on the bottom of the bell 3 constituting a fixed part.
  • a declutching fork pivotally mounted, for example by means of a ball joint, on the bottom of the bell 3 constituting a fixed part.
  • the declutching stop 66 may belong to a concentric declutching device with cable control, this stop being then mounted on a driven part movable in translation and fixed in rotation, said part being in relation to screw nut with a driving part fixed in translation and movable in rotation.
  • the driving part carries a pulley on which the control cable is wound.
  • the driving part is controlled by a transverse electric motor.
  • the concentric declutching device 166 is of the hydraulic type and comprises two parts in relation to the piston cylinder, namely a fixed part 167, delimiting a blind annular cavity 168 of axial orientation, and a piston 169 mounted axially movable relative to the fixed part.
  • This piston 169 carries the declutching stop 66 and enters the cavity 168 to define therewith a working chamber of variable volume, the cavity 168 communicating by a channel 180 with a pipe connected to a master cylinder actuated by a pedal. clutch or an actuator with an electric motor controlled according to predetermined programs by a computer.
  • the working chamber is therefore allowed to be pressurized or depressurized, the control fluid filling said chamber usually being oil.
  • the fixed part 167 can be in one piece of moldable material.
  • the fixed part 167 comprises, for reduction of the radial size, two coaxial parts, namely a body outer surrounding a metal guide tube longer axially than the outer body.
  • the bottom of the cavity 168 is delimited by a transverse rim belonging to the guide tube assembled to the external body using an intermediate assembly part.
  • a static seal is provided between the outer body and the guide tube carrying at its free end a stop to limit the displacement of the piston 169 when the declutching device 166 is not mounted on the bell 3.
  • the channel 180 communicates with a groove opposite the edge of the guide tube.
  • a preload spring 171 acts between the external body of moldable material and the clutch release bearing 66 to maintain the latter in constant support on the declutching means 163.
  • the declutching stop 66 comprises a ball bearing with a profiled rotating ring for punctual contact with the internal ends of the fingers of the diaphragm 163 and a non-rotating ring axially coupled to the piston 169, which thus carries the stop 66.
  • the outer ring of the bearing is rotating, while the inner ring of the bearing is fixed in rotation and has at its internal periphery a radial flange bearing on a front shoulder of the piston 169, said flange being pressed against said shoulder by a washer.
  • elastic with axial action here in the form of a Belleville washer, bearing on the piston.
  • the stop 66 has a flag shape so that the inner ring of the ball bearing is intended to surround the front end of reduced diameter of the outer body to reduce the axial bulk, knowing that the outer body is intended to be fixed on the bottom of the bell 3, directly, using ears, or indirectly, using an adapter sole and a bayonet mount.
  • the outer body has fixing lugs and the stop 66 is of the self-centering type because it can move radially in contact with the shoulder of the piston under the control of the elastic washer with axial action.
  • the declutching device 166 is of the concentric type because it is intended to be crossed by the input shaft of the gearbox 2. The device 166 therefore surrounds the shaft 2.
  • the clutch mechanism 160 is here associated with a friction disc 170.
  • the friction disc 170 carries at its outer periphery at least one friction lining 172 intended to be clamped between two plates under the action of the engagement means 163.
  • the friction disc 170 has centrally a hub 171 internally grooved for connection in rotation with the driven shaft 2.
  • the friction lining 172 is secured to a support 173 rigidly or resiliently coupled to the hub 171.
  • the shaft 2 therefore passes through the declutching device 166 and the hub 171 of the friction disc 170.
  • the end of the shaft 2 is received in a pilot bearing carried by the output shaft 1 of the internal combustion engine , namely, here, the crankshaft of the internal combustion engine of the vehicle.
  • Tree 1 is therefore a leading tree.
  • the support 173 can be embedded in the liner 172.
  • two identical linings 172 are arranged axially on either side of the support 173 axially elastic, being fixed thereto by gluing; this makes it possible to reduce the axial size, the dead thickness of the linings 172 intended for the riveting operation being eliminated, when, as a variant, the linings 172 are fixed to the support 173 by riveting, the support 173 being shaped at its periphery external to be axially elastic and progressively crushed.
  • the friction linings 172 can be glued directly into the central bearing areas of the tripod blades described in document FR-A-2 693 778 to which reference may be made for more details.
  • the lining 172 of the friction disc 170 is adapted to be clamped between the plate 116 of the secondary flywheel 112 and the pressure plate 162 of the clutch mechanism 160.
  • the cover 161 is fixed by its external periphery at the end of the plate 116 of the secondary flywheel 112, here by screws 68.
  • the pressure plate 162 has an annular boss 69 of axial orientation directed towards the bottom 164 of the cover 161 for contact with the external periphery of the Belleville washer of the diaphragm 163; this boss 69 is split and molded with the pressure plate 162.
  • the internal periphery of the Belleville washer of the diaphragm 163 is pivotally or pivotally mounted between a primary support here coming from the bottom 164 of the cover 161 by stamping and a secondary support here consisting of small columns axially passing through the enlarged orifices of the diaphragm 163.
  • the pressure plate 162 is linked in rotation to the cover 161 by elastic tangential tongues 176 with axial action allowing axial movement of the pressure plate 162 relative to the cover 161 itself linked to the secondary flywheel 112; the tongues 176 are linked to the cover 161 by rivets and to projecting radial tabs of the pressure plate 162 also by rivets 178.
  • the tongues 176 exert an elastic return action of the pressure plate 162 in the direction of the bottom 164 of the cover 161 and the pressure plate 162 frontally has a friction face for contact with the lining concerned 172 of the friction disc 170, while the plate 116 of the secondary flywheel 112 has a friction face frontally and dorsally for contact with the other friction lining 172.
  • the clutch is therefore engaged and the engine torque is transmitted from the drive shaft 1 to driven shaft 2 via the clutch.
  • the Belleville washer of the diaphragm 163 that is to say the clutch engagement means, is in contact, on the one hand, at its internal periphery with the primary support, and, on the other hand part, at its outer periphery with the boss 69 of the pressure plate 162.
  • the diaphragm 163 therefore urges the pressure plate 162 in the direction of the plate 116 of the secondary flywheel 112 so that the friction linings 172 of the friction disc 170 are tight between the pressure plates 162 and the secondary flywheel 112.
  • the friction disc 170 is therefore rotated so that the hub 171, coupled with the linings 172, rotates the driven shaft 2.
  • the piston 169 of the declutching device 166 is in the retracted position, upper part of FIG. 1, and the cavity 168 is depressurized.
  • the piston 169 moves to the left, lower part of FIG. 1, and therefore drives the clutch release bearing 66, which then acts by pushing on the fingers of the diaphragm 163, to rotate the one -this.
  • the diaphragm 163 then leaves its primary support to take support on its secondary support.
  • the load exerted by the diaphragm 163 on the pressure plate 162 decreases then vanishes, the pressure plate 162 then following the movement of the diaphragm 163 under the return action of the tongues 176.
  • the friction linings 172 are then released and the clutch disengaged. The engine torque is then not transmitted.
  • the springs 25 have here a curved shape by being pre-bent and pieces in the form of a chute (not referenced) are interposed here between the springs 25 and the internal periphery of the skirt 115 to reduce wear.
  • the rotor 151 has a large axial extent and it is the same for the stator 152.
  • the machine 150 thus has a good efficiency.
  • the rotor 151 comprises a pack of sheets, made of soft iron, mounted by hooping on the outer periphery of the primary skirt 115.
  • the pack of sheets is therefore hot mounted by fitting on the outer periphery of the primary skirt 115 until contact with the projecting edge of the support plate 134A.
  • the annular sheets thus form an axial orientation crown mounted by hooping on the primary skirt 115.
  • the sheets can be isolated by oxidation or provided with insulators.
  • the stator 152 is formed, similar to the rotor 151, from a pack of annular sheets, made of soft iron, reconstituting a crown of axial orientation. Notches are made in the sheets for passage of windings of electric wires 154, the rotor 151 and the stator 152 being shown schematically.
  • the electric machine 150 By injecting a controlled electric current into the stator windings, the electric machine 150 is transformed into a starter for the internal combustion engine of the vehicle.
  • the machine is here of the asynchronous electric motor type.
  • the electric machine can be of the synchronous electric motor or other type.
  • the engine when running, the machine acts as an alternator.
  • the internal combustion engine can be shut down at each stop and restarted using the machine.
  • the machine can constitute an electric brake and provide a surplus of energy to the internal combustion engine to assist it or prevent it from stalling; we can also filter vibrations.
  • the rotor 151 is fixed to the external periphery of the primary skirt 115 by means of grooves or by fitting with cones. In all cases, the rotor 151 is integral both in rotation and axially with the primary flywheel 111.
  • the rotor 151 can be fixed on the primary skirt
  • the stator 152 is fixed here by shrinking at its outer periphery on the bell. Any other form of fixing such as screwing is possible. It will be appreciated that the method of fixing by shrinking favors the reduction of one radial size. Here, the assembly has all the desired comfort functions, while being compact radially and having good performance.
  • the clutch can be equipped with a wear take-up device in particular to compensate for the wear of the friction linings and to maintain the diaphragm in a constant position when the clutch is engaged.
  • the clutch is of the pushed type because the stop 66 acts by pushing centrally on the diaphragm 163.
  • the clutch is of the pulled type.
  • the stop is coupled to a docking part acting behind the diaphragm and passing through the central opening of the diaphragm.
  • the declutching operation is carried out by pulling, via a docking piece, on the fingers of the diaphragm.
  • the peripheral part of the Belleville washer of the diaphragm is in contact, at its external periphery, with a support carried by the cover and its internal periphery with the boss of the pressure plate.
  • the boss 69 of the pressure plate 162 can be movable relative to the pressure plate 162 to compensate for the wear of the friction linings, circumferentially acting springs acting between the pressure plate 162 and the boss 69, ramp means varying the axial distance between the boss 69 and the pressure plate 162.
  • the rotor may be shorter axially.
  • the rotor 151 as visible in FIG. 1 can be provided with a squirrel cage with copper or aluminum parts.
  • Metal inserts can be housed in the steering wheels to reinforce them.
  • the inserts in section, have a square shape housed partly in the plate and partly in the skirt.
  • the inserts are of axial orientation, as described in document FR-A-2 718 806 to which reference will be made for more details.
  • the inserts in the secondary flywheel 112 can be used to fix the cover 161. These inserts can protrude from the flywheel secondary and form targets respectively for the electric machine and the engine ignition.
  • stop 134A can be replaced by inserts embedded in the primary skirt 115, the inserts having a rim folded radially outward to form the stop.
  • the machine 150 can be used to synchronize the speed of the shafts 1 and 2 to facilitate the change of gears.
  • the stop 66 it is advantageous for the stop 66 to be operated by a receiver, the transmitter of which is operated by an actuator controlled by a computer receiving information from sensors receiving the speed of the shafts 1 and 2.
  • the machine 150 can be of the asynchronous type, as mentioned above, synchronous with magnet in the air gap or buried, with flux switching with single or hybrid magnets with excitations by stator windings, with brushless claws, with variable reluctance, single or double excitation, cross flow with Vernier effect.
  • the electric machine can be of the synchronous type with a brush-ring system.
  • FIG. 2 represents another variant of the assembly according to the invention; in this figure, the parts identical to those of FIG. 1, or playing the same role, bear an identical reference or increased by one hundred and will not be described again in detail.
  • the double damping flywheel 200 also comprises elastic means constituted by two rows of springs arranged side by side axially and the clutch comprises only a friction disc, as in FIG. 2.
  • the secondary flywheel 212 has a secondary skirt 218, surrounded by the primary skirt 215, as in Figure 1, but here the skirts 218, 215 extend axially towards each other from respectively the plate 216 of the secondary flywheel 212 and the bottom of the primary flywheel 211 in the form of C.
  • the section 233 is inverted with respect to the section 133 in FIG. 2; it is fixed by its edge at the end of the secondary skirt 218 at the same time as the flange support 234A of which stamps serve as support for the springs 25 of the row arranged on the side of the primary flywheel 211.
  • first web 227 Between the central hub 213 and the first spacer washer 223A is pinched a first web 227 and between the first 223A and second 223B spacer washers is pinched a second web 227A.
  • the webs 227 and 227A have, as before, notches at their outer periphery with the edge of which the springs 25 of each row of springs respectively cooperate.
  • the bottom 234 of the section 233 disposed between the two rows of springs, carries the support pads, as does the plate 216 of the secondary flywheel 212, for support of the springs 25 on either side of the sails 227 and 227A .
  • the friction washer 240 surrounds the first spacer washer 223A and cooperates in friction with the first web 227, being driven by an axial tab from the bottom 234 of the section 233 and applied by an elastic washer bearing on the first spacer washer 223A.
  • the bearing 221 is placed between the plate 216 of the secondary flywheel 212 and the second spacer washer 223B.
  • rivets 220A join the central hub 213 of the primary flywheel 211 and the first spacer washer 223A
  • rivets 220B join the two spacer washers 223A and 223B, the rivets 220A and 220B being circumferentially offset.
  • the plate 216 of the secondary flywheel 212 extends radially beyond the rotor 251 that it runs along.
  • the clutch mechanism 160 and the friction disc 170 are identical to those of FIG. 1.
  • FIG. 3 represents another variant of the assembly according to the invention; in this figure, the parts identical to those of the Figure 2, or playing the same role, carry an identical reference or increased by 100 and will not be described again in detail.
  • the primary flywheel 311 does not have a primary skirt, and it is the secondary skirt 318 of the secondary flywheel 312 which carries the rotor 351 of the electric machine 350, the other constituents of the assembly of Figure 3 being identical to those of Figure 2 and assembled in the same manner.
  • the primary flywheel 111, 211, 311 and the reaction plate 116, 216, 316 are advantageously made of moldable material, here cast iron.
  • the rows of springs 25 are housed under the rotor 151, 251, 351 of the electric machine. These springs 25 can be straight instead of being bent. Thanks to the presence of the springs 25, the friction disc can be of the rigid type so that the friction lining or linings are rigidly connected to the hub concerned.
  • the section 133 in FIG. 1 and the sections 233 and 333 in FIGS. 2 and 3 make it possible to stiffen the skirts 115, 218 and 318 respectively thanks in particular to their rim pressed against the end face of the skirt.
  • the drive of the friction washer 140, 240, 340 is carried out simply using at least one lug of axial orientation obtained by cutting and folding from the web 127 or from the bottom 234, 334, that is i.e. from metal parts.
  • the web 227,327 has a double function since it also serves as a friction surface.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

The invention concerns an assembly consisting of a clutch associated with an electric machine (150, 250, 350) equipped with a double damping flywheel (100, 200, 300) comprising a primary flywheel (111, 211, 311) designed to be coupled to the crankshaft (1) of the vehicle engine and a secondary flywheel (112, 212, 312) designed to receive the clutch mechanism (160) of the clutch which includes a cover (161), clutching-declutching means (163) and a pressure plate (162), torque-damping means with circumferential action being kinematically arranged between the primary (111, 211, 311) and the secondary (112, 212, 312) flywheels, the elastic means consisting of springs (25) circumferentially arranged and being supported on one side on the primary flywheel (111, 211, 311) and on the other side on the secondary flywheel (112, 212, 312), said springs (25) being distributed along two axially offset rows.

Description

Ensemble constitué d'un embrayage associé à une machine électrique, en particulier pour véhicule automobile Assembly consisting of a clutch associated with an electric machine, in particular for a motor vehicle
La présente invention concerne un embrayage associé à une machine électrique, en particulier pour véhicule automobile.The present invention relates to a clutch associated with an electric machine, in particular for a motor vehicle.
Un embrayage, en particulier de véhicule automobile, comprend globalement un mécanisme d'embrayage constitué essentiellement d'un couvercle, d'un plateau de pression et de moyens embrayeurs destinés à serrer au moins une garniture de friction, portée par un disque de friction, entre le plateau de pression et un plateau de réaction appartenant à un volant calé en rotation sur le vilebrequin du moteur à combustion interne.A clutch, in particular for a motor vehicle, generally comprises a clutch mechanism essentially consisting of a cover, a pressure plate and engagement means intended to tighten at least one friction lining, carried by a friction disc, between the pressure plate and a reaction plate belonging to a flywheel stalled in rotation on the crankshaft of the internal combustion engine.
On a déjà proposé, notamment dans le document DE-C-3 227 810, un ensemble constitué d'un embrayage associé à une machine électrique ' dont le rotor est porté par le plateau de réaction, la machine électrique étant conformée pour constituer un alternateur et un démarreur pour le moteur d'un véhicule automobile. De manière générale, ledit ensemble se loge à l'intérieur d'un carter ou cloche d ' embrayage . On a déjà proposé également de doter un véhicule automobile d'un volant du type double, ou double volant amortisseur, du genre comportant un volant primaire destiné à être relié au vilebrequin du moteur du véhicule et un volant secondaire destiné à recevoir le mécanisme d'embrayage ; des moyens amortisseurs de torsion à action circonférentielle sont disposés cinématiquement entre les volants primaire et secondaire ; comme on le sait, une telle disposition permet un excellent filtrage des oscillations de torsion générées par le moteur, particulièrement dans les bas régimes, avec pour conséquence une importante diminution des bruits, notamment dans la boîte de vitesses.It has already been proposed, especially in DE-C-3,227,810, an assembly consisting of a clutch associated with an electric machine "of which the rotor is carried by the reaction plate, the electric machine being shaped to constitute a generator and a starter for the engine of a motor vehicle. In general, said assembly is housed inside a clutch housing or bell. It has also already been proposed to provide a motor vehicle with a flywheel of the double type, or double damping flywheel, of the type comprising a primary flywheel intended to be connected to the crankshaft of the vehicle engine and a secondary flywheel intended to receive the clutch ; circumferential action torsional damping means are kinematically disposed between the primary and secondary flywheels; as is known, such an arrangement allows excellent filtering of the torsional oscillations generated by the engine, particularly in low revs, with the consequence of a significant reduction in noise, in particular in the gearbox.
La présente invention a pour objet un ensemble constitué d'un embrayage associé à une machine électrique, en particulier pour véhicule automobile dans lequel le volant est un double volant amortisseur, ledit ensemble permettant de mieux gommer les ac'yclismes, du type sinusoïdal, du moteur à combustion interne. Selon l'invention, il est proposé un ensemble constitué d'un embrayage associé à une machine électrique, en particulier pour véhicule automobile équipé d'un double volant amortisseur du genre comportant un volant primaire destiné à être relié au vilebrequin du moteur du véhicule et un volant secondaire destiné à recevoir le mécanisme d'embrayage de l'embrayage qui comprend un couvercle, des moyens embrayeurs-débrayeurs et un plateau de pression, des moyens amortisseurs de torsion à action circonférentielle étant disposés cinématiquement entre les volants primaire et secondaire, les moyens élastiques étant constitués par des ressorts disposés circonférentiellement et prenant appui d'un côté sur le volant primaire et de l'autre côté sur le volant secondaire, lesdits ressorts étant répartis selon deux rangées décalées axialement.The present invention relates to an assembly consisting of a clutch associated with an electric machine, in particular for a motor vehicle wherein the wheel is a double damping flywheel, said assembly for better erase ac 'yclismes, of the sinusoidal type, internal combustion engine. According to the invention, an assembly is proposed comprising a clutch associated with an electric machine, in particular for a motor vehicle equipped with a double damping flywheel of the kind comprising a primary flywheel intended to be connected to the crankshaft of the vehicle engine and a secondary flywheel intended to receive the clutch clutch mechanism which comprises a cover, clutch-declutching means and a pressure plate, torsional damping means with circumferential action being kinematically disposed between the primary and secondary flywheels, the elastic means being constituted by springs arranged circumferentially and bearing on one side on the primary flywheel and on the other side on the secondary flywheel, said springs being distributed in two rows offset axially.
Grâce à cette disposition, les moyens amortisseurs de torsion ont un faible encombrement radial, ce qui conduit à un ensemble compact bien adapté à l'application à un véhicule automobile, et sont susceptibles d'un grand débattement angulaire, notamment lorsque les ressorts des deux rangées sont en séries .Thanks to this arrangement, the torsion damping means have a small radial size, which leads to a compact assembly well suited to the application to a motor vehicle, and are liable to a large angular clearance, in particular when the springs of the two rows are in series.
D'autre caractéristiques de l'ensemble selon l'invention sont définies dans les revendications .Other characteristics of the assembly according to the invention are defined in the claims.
Pour mieux faire comprendre l'objet de l'invention, on va en décrire maintenant, à titre d'exemple, purement illustratif et non limitatif, des modes de réalisation représentés sur les dessins annexés . Sur ces dessins : la figure 1 est une vue en coupe d'un ensemble selon 1 ' invention ; les figures 2 et 3 sont analogues à la figure 1 et représentent chacune une variante d'ensemble selon l'invention. En se reportant à la figure 1, on voit qu'un ensemble selon l'invention comprend un double volant amortisseur 100, une machine électrique 150 et un mécanisme d'embrayage 160.To better understand the object of the invention, we will now describe, by way of example, purely illustrative and not limiting, embodiments shown in the accompanying drawings. In these drawings: FIG. 1 is a sectional view of an assembly according to the invention; Figures 2 and 3 are similar to Figure 1 and each show an overall variant according to the invention. Referring to FIG. 1, it can be seen that an assembly according to the invention comprises a double damping flywheel 100, an electric machine 150 and a clutch mechanism 160.
Le double volant 100 comporte un volant primaire 111 et un volant secondaire 112. Le volant primaire 111 présente un moyeu central 113 par lequel il est relié, ici par des vis 14, au vilebrequin 1 du moteur du véhicule automobile ; le volant primaire 111 est de révolution, à section axiale en forme de C, et présente une jupe externe 115 dite primaire, de forme annulaire et d'orientation axiale.The double flywheel 100 comprises a primary flywheel 111 and a secondary flywheel 112. The primary flywheel 111 has a central hub 113 by which it is connected, here by screws 14, to the crankshaft 1 of the engine of the motor vehicle ; the primary flywheel 111 is of revolution, with a C-shaped axial section, and has an external skirt 115 called primary, of annular shape and of axial orientation.
Le volant secondaire 112 comporte un plateau 116 de forme annulaire d'orientation transversale muni à sa périphérie interne d'une collerette 117 annulaire.The secondary flywheel 112 comprises a plate 116 of annular shape of transverse orientation provided at its internal periphery with an annular flange 117.
Le volant secondaire 112 est destiné à recevoir un mécanisme d'embrayage 160, de la manière décrite ci-dessous, et constitue un plateau de réaction adapté à coopérer avec un disque de friction associé au mécanisme d'embrayage 160. Le volant secondaire 112 est ainsi destiné à être lié en rotation de manière débrayable à l'arbre d'entrée 2 de la boîte de vitesses, via le mécanisme d'embrayage 160, formant un ensemble unitaire.The secondary flywheel 112 is intended to receive a clutch mechanism 160, as described below, and constitutes a reaction plate adapted to cooperate with a friction disc associated with the clutch mechanism 160. The secondary flywheel 112 is thus intended to be disengageably linked in rotation to the input shaft 2 of the gearbox, via the clutch mechanism 160, forming a unitary assembly.
Des moyens amortisseurs de torsion à action circonférentielle sont disposés cinématiquement entre les volants primaire 111 et secondaire 112 ; ces moyens amortisseurs de torsion comprennent des moyens élastiques à action circonférentielle et des moyens de frottement à action axiale.Circumferential action torsional damping means are kinematically disposed between the primary 111 and secondary 112 flywheels; these torsion damping means comprise elastic means with circumferential action and friction means with axial action.
La collerette interne 117 du volant secondaire 112 porte, appliquée sur sa face tournée vers le volant primaire 111, une couronne 119 qui lui est assujettie par des vis 120. Un moyen de palier, ici un roulement à billes 121, est placé entre la périphérie interne de la couronne 119 et la périphérie externe du moyeu central 113 du volant primaire 111, les volants primaire 111 et secondaire 112 étant amenés à tourner l'un par rapport à l'autre.The internal flange 117 of the secondary flywheel 112 carries, applied on its face facing the primary flywheel 111, a crown 119 which is fixed to it by screws 120. A bearing means, here a ball bearing 121, is placed between the periphery internal of the crown 119 and the external periphery of the central hub 113 of the primary flywheel 111, the primary 111 and secondary 112 flywheels being caused to rotate relative to one another.
La portée cylindrique interne du chemin de roulement interne, appelé bague interne, du roulement 121 est usinée en bout du moyeu central 113, à la périphérie externe de celui-ci, en sorte qu'est définie une portée transversale 122 calant axialement d'un côté le chemin de roulement interne par rapport au moyeu central 113 ; de l'autre côté, celui-ci est calé par une rondelle 123 à trous pour le passage des vis 14 dont la tête applique la rondelle 123 sur le chemin de roulement interne et la face frontale du moyeu central 113 par rapport auquel ledit chemin de roulement interne est donc calé axialement dans les deux sens . Le volant primaire 111 avec sa jupe primaire 115 et son moyeu central 113 définit, en coopération avec le volant secondaire 112, la couronne 119 et le roulement 122, un volume annulaire 124 dans lequel sont placés les moyens amortisseurs de torsion. Les moyens élastiques sont des ressorts à boudin 25 ici du type concentrique s ' étendant circonférentiellement répartis en deux rangées décalées axialement et prenant appui d'un côté sur le volant primaire 111 et de l'autre côté sur le volant secondaire 112.The internal cylindrical bearing surface of the internal race, called the internal ring, of the bearing 121 is machined at the end of the central hub 113, at the external periphery of the latter, so that a transverse bearing surface 122 is axially wedged by a side of the internal race with respect to the central hub 113; on the other side, this is wedged by a washer 123 with holes for the passage of the screws 14, the head of which applies the washer 123 to the internal raceway and the front face of the central hub 113 with respect to which said raceway internal bearing is therefore locked axially in both directions. The primary flywheel 111 with its primary skirt 115 and its central hub 113 defines, in cooperation with the secondary flywheel 112, the crown 119 and the bearing 122, an annular volume 124 in which the torsion damping means are placed. The elastic means are coil springs 25 here of the concentric type extending circumferentially distributed in two rows offset axially and bearing on one side on the primary flywheel 111 and on the other side on the secondary flywheel 112.
Les appuis côté volant secondaire 112, dits appuis secondaires, des ressorts d'une rangée, sont constitués par un bord radial 126 d'une échancrure découpée à la périphérie externe d'un voile 127 globalement transversal. ' échancrure est ouverte vers l'extérieur.The supports on the secondary flywheel side 112, called secondary supports, of the springs of a row, consist of a radial edge 126 of a notch cut out at the external periphery of a generally transverse web 127. the notch is open to the outside.
Le voile 127, ici métallique, est solidarisé par sa périphérie interne à la couronne 119, ici par des rivets 128 qui plaquent le voile 127 sur la face transversale de la couronne 119 tournée vers le volant primaire 111. Le voile 127 s'étend vers l'axe jusqu'au droit du chemin de roulement externe, appelé bague externe, du roulement 121 en sorte de le caler d'un côté axialement par rapport à la couronne 119 ; la portée cylindrique externe du chemin de roulement externe est usinée sur une fraction seulement de la périphérie interne de la couronne 119 en sorte qu'est définie une portée transversale 129 calant axialement de l'autre côté ce chemin de roulement externe par rapport à la couronne 119 : ainsi, ce chemin de roulement externe est calé des deux côtés par rapport à ladite couronne 119.The veil 127, here metallic, is secured by its internal periphery to the crown 119, here by rivets 128 which press the veil 127 on the transverse face of the crown 119 facing the primary flywheel 111. The veil 127 extends towards the axis to the right of the outer race, called the outer ring, of the bearing 121 so as to wedge it on one side axially with respect to the ring 119; the external cylindrical bearing surface of the external raceway is machined on only a fraction of the internal periphery of the crown 119 so that a transverse bearing surface 129 is defined axially wedging on the other side this external raceway relative to the crown 119: thus, this external raceway is wedged on both sides relative to said crown 119.
Les appuis côté volant primaire 111, dits appuis primaires, pour ces ressorts 25 sont des paires d'appuis, les appuis de chaque paire étant disposés axialement de part et d'autre du voile 127 : l'un de ces appuis est constitué par la face radiale d'un patin d'appui 130 assujetti au volant primaire 111 par des rivets 131 ; l'autre appui 130 est porté par le fond 134 d'une pièce en tôle en forme de coupe 133 ; le fond 134 est muni d'une ouverture centrale par laquelle il entoure la couronne 119 en étant au droit de celle-ci.The supports on the primary flywheel side 111, called primary supports, for these springs 25 are pairs of supports, the supports of each pair being arranged axially on either side of the web 127: one of these supports is constituted by the radial face of a support shoe 130 secured to the primary flywheel 111 by rivets 131; the other support 130 is carried by the bottom 134 of a cup-shaped sheet metal part 133; the bottom 134 is provided with a central opening through which it surrounds the crown 119 while being at the right of the latter.
Le fond 134 de la coupe 133 se prolonge selon un bord cylindrique axial, qui longe la jupe primaire 115, au contact de la périphérie interne de celle-ci dans laquelle il s'emboîte ; ce bord se termine par un rebord transversal 137 plaqué contre la face transversale d'extrémité de la jupe primaire 115 par des vis solidarisant la coupe 133 au volant primaire 111.The bottom 134 of the section 133 extends along an axial cylindrical edge, which runs along the primary skirt 115, in contact with the internal periphery of the latter in which it fits; this edge ends with a transverse rim 137 pressed against the transverse end face of the primary skirt 115 by screws securing the section 133 to the primary flywheel 111.
La jupe primaire 115 du volant primaire 111 entoure les deux rangées de ressorts 25 disposées côte à côte axialement ,- les ressorts 25 des deux rangées sont cinématiquement attelés en parallèle. Pour ce faire, le fond 134 de la coupe 133 porte des patins d'appui 130 disposés dos à dos ; un voile 127A supplémentaire coopère, ici par l'intermédiaire d' échancrures ouvertes vers l'extérieur, avec les ressorts 25 de la rangée disposée du côté du mécanisme d'embrayage 160 ; ces mêmes ressorts 25 coopèrent également avec des patins d'appui 130, placés en regard des patins 130 portés par le fond 134 de la coupe 133 et solidaires d'un flasque d'appui 134A. Le voile 127A est disposé axialement entre la couronne 119 et la collerette 117, ici en forme de moyeu, du volant secondaire 112 en étant fixé par les vis 120 qui solidarisent, par sa collerette 117, le volant secondaire 112 à la couronne 123. Ici, la couronne 119 porte un manchon 119A dirigé vers le mécanisme d'embrayage 160, de diamètre inférieur à celui de la couronne 119, pour centrage du voile 127A et de la collerette 117 du volant secondaire 112. Le manchon 119A constitue également une butée axiale pour le chemin de roulement externe du roulement 121.The primary skirt 115 of the primary flywheel 111 surrounds the two rows of springs 25 arranged side by side axially, - the springs 25 of the two rows are kinematically coupled in parallel. To do this, the bottom 134 of the section 133 carries support pads 130 arranged back to back; an additional web 127A cooperates, here by means of notches open towards the outside, with the springs 25 of the row arranged on the side of the clutch mechanism 160; these same springs 25 also cooperate with support pads 130, placed opposite the pads 130 carried by the bottom 134 of the cup 133 and secured to a support flange 134A. The veil 127A is disposed axially between the crown 119 and the flange 117, here in the form of a hub, of the secondary flywheel 112 by being fixed by the screws 120 which secure, by its flange 117, the secondary flywheel 112 to the crown 123. Here , the crown 119 carries a sleeve 119A directed towards the clutch mechanism 160, of diameter smaller than that of the crown 119, for centering the web 127A and the flange 117 of the secondary flywheel 112. The sleeve 119A also constitutes an axial stop for the external raceway of bearing 121.
Le flasque d'appui 134A est fixé en bout de la jupe primaire 115 par les mêmes vis qui fixent par son rebord 137 la coupe 133 à la jupe primaire 115 ; le flasque d'appui 134A dépasse radialement la périphérie externe de la jupe primaire 115 pour constituer une butée axiale pour le rotor 151 de la machine 150 monté par exemple par frettage à la périphérie de ladite jupe primaire 115. Ainsi les ressorts 25 des deux rangées de ressorts sont en appui, d'un côté, sur le volant primaire 111 par l'intermédiaire des patins d'appui 130 et, de l'autre côté, sur le volant secondaire 112 par l'intermédiaire des voiles 127 et 127A, sachant que le fond 134 sert de support à deux séries de patins 130 disposées de part et d'autre du fond 134. Ici, la rondelle 123 est de grande épaisseur et solidarisée au moyeu central 113 du volant primaire 111 pour constitution d'un premier sous-ensemble comportant notamment le volant primaire 111 portant les ressorts 25, la coupe 133, le plateau d'appui 134A, le roulement 121, le rotor 151 et la rondelle 123.The support flange 134A is fixed at the end of the primary skirt 115 by the same screws which fix by its rim 137 the section 133 to the primary skirt 115; the support flange 134A projects radially beyond the external periphery of the primary skirt 115 to constitute an axial stop for the rotor 151 of the machine 150 mounted for example by hooping on the periphery of said primary skirt 115. Thus the springs 25 of the two rows springs are supported, on one side, on the primary flywheel 111 by means of the support pads 130 and, on the other side, on the secondary flywheel 112 by means of the sails 127 and 127A, knowing that the bottom 134 serves as a support for two series of pads 130 arranged on either side of the bottom 134. Here, the washer 123 is very thick and secured to the central hub 113 of the primary flywheel 111 for constituting a first sub-assembly comprising in particular the primary flywheel 111 carrying the springs 25, the cut 133, the support plate 134A, the bearing 121, the rotor 151 and the washer 123.
Le plateau 116 du volant secondaire 112, avec lequel coopère la garniture du disque de friction 170, s'étend radialement, depuis sa collerette 117 en forme de moyeu, au delà du rotor 151 en longeant le flasque d'appui 137A et le rotor 151, sa face tournée vers le volant primaire 111 épousant les formes de ceux-ci.The plate 116 of the secondary flywheel 112, with which the lining of the friction disc 170 cooperates, extends radially, from its hub-shaped flange 117, beyond the rotor 151, along the support flange 137A and the rotor 151 , its face turned towards the primary flywheel 111 conforming to the shapes thereof.
Le disque de friction 170 est unique et dès lors de diamètre plus grand que celui sur lequel s'étendent les ressorts 25 ; le couvercle 161 du mécanisme d'embrayage 160 est ici de forme creuse et solidarisé à la périphérie du plateau 116 du volant secondaire 112 par les vis 68 ; un second sous-ensemble est ainsi constitué, comprenant le volant secondaire 112, le disque de friction 170 et le mécanisme d'embrayage 160 ; le second sous-ensemble et le premier sous-ensemble sont solidarisés par les vis 120 grâce à des passages 170A ménagés dans le voile du moyeu du disque de friction 170 ; d'autres passages 170B ménagés dans ce voile permettent le montage de l'ensemble des deux sous-ensembles sur l'arbre moteur 1 par les vis 14.The friction disc 170 is unique and therefore of larger diameter than that on which the springs 25 extend; the cover 161 of the clutch mechanism 160 is here hollow in shape and secured to the periphery of the plate 116 of the secondary flywheel 112 by the screws 68; a second sub-assembly is thus formed, comprising the secondary flywheel 112, the friction disc 170 and the clutch mechanism 160; the second sub-assembly and the first sub-assembly are secured by the screws 120 through passages 170A formed in the web of the hub of the friction disc 170; other passages 170B made in this veil allow the assembly of the assembly of the two sub-assemblies on the motor shaft 1 by the screws 14.
Les moyens de frottement des moyens amortisseurs de torsion comportent une rondelle de frottement 140 entourant le moyeu central 113 du volant primaire 111 et présentant à sa périphérie au moins une échancrure 141 adaptée à recevoir avec ou sans jeu une patte axiale 139 issue de la périphérie interne du voile 127 par découpe et pliage de celle-ci. La rondelle de frottement 140 est appuyée contre la face interne du fond du volant primaire 111 en forme de C au moyen d'une rondelle élastique de serrage 142 à action axiale, classiquement une rondelle Belleville, par l'intermédiaire d'une rondelle d'application 143, la rondelle élastique 142 prenant appui sur un circlips 144 porté par le moyeu central 113.The friction means of the torsion damping means comprise a friction washer 140 surrounding the central hub 113 of the primary flywheel 111 and having at its periphery at least one notch 141 adapted to receive with or without play an axial tab 139 coming from the internal periphery of the web 127 by cutting and folding thereof. The friction washer 140 is pressed against the internal face of the bottom of the primary flywheel 111 in the form of C by means of an elastic clamping washer 142 with axial action, conventionally a Belleville washer, by means of a washer of application 143, the elastic washer 142 resting on a circlip 144 carried by the central hub 113.
L'ensemble est logé à l'intérieur d'une cloche d'embrayage 3 fixe du véhicule automobile. La machine électrique 150 est disposée autour du double volant 110 ; elle comporte un rotor 151 et un stator 152 coaxiaux, un entrefer 153 existant entre le rotor 151 et le stator 152 ; le rotor 151 comporte des aimants permanents et est porté par le volant primaire 111, à la périphérie externe de la jupe primaire 115 à laquelle il est solidarisé par exemple par frettage. Le stator 152 est doté d'enroulements électriques 154 et est porté intérieurement par la cloche d'embrayage 3.The assembly is housed inside a fixed clutch bell 3 of the motor vehicle. The electric machine 150 is arranged around the double flywheel 110; it comprises a rotor 151 and a stator 152 coaxial, a gap 153 existing between the rotor 151 and the stator 152; the rotor 151 comprises permanent magnets and is carried by the primary flywheel 111, at the external periphery of the primary skirt 115 to which it is secured, for example by shrinking. The stator 152 has electrical windings 154 and is carried internally by the clutch bell 3.
Le mécanisme d'embrayage 160 comprend un couvercle 161, un plateau de pression 162 et un diaphragme 163.The clutch mechanism 160 comprises a cover 161, a pressure plate 162 and a diaphragm 163.
Le couvercle 161 est métallique, ici en tôle emboutie ; il présente un fond 164, troué centralement, globalement d'orientation transversale, perpendiculaire à l'axe de l'ensemble, muni à sa périphérie externe d'un rebord annulaire 165 de fixation ; le couvercle 161 a ainsi globalement la forme d'une assiette creuse.The cover 161 is metallic, here in stamped sheet metal; it has a bottom 164, perforated centrally, generally of transverse orientation, perpendicular to the axis of the assembly, provided at its outer periphery with an annular rim 165 for fixing; the cover 161 thus has the overall shape of a deep dish.
Un embrayage comporte des moyens embrayeurs associés à des moyens débrayeurs ; ceux-ci peuvent être des leviers de débrayage pouvant agir sur des ressorts hélicoïdaux à action axiale constituant les moyens embrayeurs ; selon une variante, les leviers de débrayage sont constitués par des doigts appartenant à la partie centrale d'une pièce dont la périphérie externe est élastique axialement ou dépourvue d'élasticité axiale, agissant sur une rondelle Belleville formant les moyens embrayeurs .A clutch comprises engaging means associated with declutching means; these can be declutching levers which can act on helical springs with axial action constituting the engagement means; alternatively, the release levers are constituted by fingers belonging to the central part of a part whose external periphery is axially elastic or devoid of axial elasticity, acting on a Belleville washer forming the engagement means.
Ici, les moyens embrayeurs et débrayeurs appartiennent à une même pièce, le diaphragme 163, qui comporte une partie périphérique en forme de rondelle Belleville prolongée intérieurement par une partie centrale fragmentée en doigts radiaux par des fentes borgnes débouchant intérieurement dans une ouverture centrale que présente le diaphragme 163 dont la forme, à l'état libre, est tronconique. Les fentes débouchent à leur périphérie externe dans des orifices élargis formant le fond des fentes .Here, the engaging and declutching means belong to the same part, the diaphragm 163, which comprises a peripheral part in the shape of a Belleville washer extended internally by a central part fragmented into radial fingers by blind slots opening internally into a central opening presented by the diaphragm 163 whose shape, in the free state, is frustoconical. The slots open at their outer periphery into enlarged orifices forming the bottom of the slots.
Les doigts du diaphragme 163 forment des leviers de débrayage et donc les moyens débrayeurs, tandis que la partie périphérique, en forme de rondelle Belleville, du diaphragme 163 constitue les moyens embrayeurs de l'embrayage, lesdits orifices étant implantés à la périphérie interne de la rondelle Belleville du diaphragme 163. Les moyens débrayeurs sont prévus pour contrecarrer à volonté l'action des moyens embrayeurs sous l'action d'une butée de débrayageThe fingers of the diaphragm 163 form declutching levers and therefore the declutching means, while the peripheral part, in the form of a Belleville washer, of the diaphragm 163 constitutes the clutch engaging means, said orifices being located at the internal periphery of the Belleville washer of diaphragm 163. The declutching means are provided to counteract at will the action of the clutching means under the action of a declutching stop.
66 appartenant à un dispositif de débrayage 166 du type concentrique, pour réduire 1 ' encombrement axial entre le fond de la cloche 3 et le mécanisme d'embrayage 160.66 belonging to a declutching device 166 of the concentric type, in order to reduce the axial size between the bottom of the bell 3 and the clutch mechanism 160.
En effet, la butée 66 peut être actionnée par une fourchette de débrayage montée pivotante, par exemple par l'intermédiaire d'une rotule, sur le fond de la cloche 3 constituant une partie fixe. Une telle disposition augmente l'encombrement axial à cause du débattement de la fourchette à prévoir .Indeed, the stop 66 can be actuated by a declutching fork pivotally mounted, for example by means of a ball joint, on the bottom of the bell 3 constituting a fixed part. Such an arrangement increases the axial size because of the travel of the fork to be provided.
Comme décrit dans le document US-A-5 141 091, la butée de débrayage 66 peut appartenir à un dispositif de débrayage concentrique à commande par câble, cette butée étant alors montée sur une pièce menée mobile en translation et fixe en rotation, ladite pièce étant en relation de vis écrou avec une pièce menante fixe en translation et mobile en rotation. La pièce menante porte une poulie sur laquelle s'enroule le câble de commande. Pour plus de précisions, on se reportera au document US-A-5 141 091.As described in document US-A-5 141 091, the declutching stop 66 may belong to a concentric declutching device with cable control, this stop being then mounted on a driven part movable in translation and fixed in rotation, said part being in relation to screw nut with a driving part fixed in translation and movable in rotation. The driving part carries a pulley on which the control cable is wound. For more details, see document US-A-5 141 091.
En variante, la pièce menante est commandée par un moteur électrique transversal.Alternatively, the driving part is controlled by a transverse electric motor.
Ici, le dispositif de débrayage concentrique 166 est du type hydraulique et comporte deux parties en relation de cylindre piston, à savoir une partie fixe 167, délimitant une cavité annulaire borgne 168 d'orientation axiale, et un piston 169 monté mobile axialement par rapport à la partie fixe.Here, the concentric declutching device 166 is of the hydraulic type and comprises two parts in relation to the piston cylinder, namely a fixed part 167, delimiting a blind annular cavity 168 of axial orientation, and a piston 169 mounted axially movable relative to the fixed part.
Ce piston 169 porte la butée de débrayage 66 et pénètre dans la cavité 168 pour définir avec celle-ci une chambre de travail de volume variable, la cavité 168 communiquant par un canal 180 avec une conduite reliée à un maître cylindre actionnée par une pédale de débrayage ou un actionneur à moteur électrique commandé selon des programmes prédéterminés par un calculateur. La chambre de travail est donc admise à être pressurisée ou dépressurisée, le fluide de commande remplissant ladite chambre étant usuellement de l'huile. La partie fixe 167 peut être en une seule pièce en matière moulable. Ici, la partie fixe 167 comporte, pour réduction de l'encombrement radial, deux pièces coaxiales à savoir un corps extérieur entourant un tube-guide métallique plus long axialement que le corps extérieur. Le fond de la cavité 168 est délimité par un rebord transversal appartenant au tube-guide assemblé au corps extérieur à l'aide d'une pièce intermédiaire d'assemblage. Un joint d'étanchéité statique est prévu entre le corps extérieur et le tube- guide portant à son extrémité libre une butée pour limiter le déplacement du piston 169 lorsque le dispositif de débrayage 166 n'est pas monté sur la cloche 3. Le canal 180 communique avec une gorge en regard du rebord du tube-guide. Un ressort de précharge 171 agit entre le corps extérieur en matière moulable et la butée de débrayage 66 pour maintenir celle-ci en appui constant sur les moyens débrayeurs 163.This piston 169 carries the declutching stop 66 and enters the cavity 168 to define therewith a working chamber of variable volume, the cavity 168 communicating by a channel 180 with a pipe connected to a master cylinder actuated by a pedal. clutch or an actuator with an electric motor controlled according to predetermined programs by a computer. The working chamber is therefore allowed to be pressurized or depressurized, the control fluid filling said chamber usually being oil. The fixed part 167 can be in one piece of moldable material. Here, the fixed part 167 comprises, for reduction of the radial size, two coaxial parts, namely a body outer surrounding a metal guide tube longer axially than the outer body. The bottom of the cavity 168 is delimited by a transverse rim belonging to the guide tube assembled to the external body using an intermediate assembly part. A static seal is provided between the outer body and the guide tube carrying at its free end a stop to limit the displacement of the piston 169 when the declutching device 166 is not mounted on the bell 3. The channel 180 communicates with a groove opposite the edge of the guide tube. A preload spring 171 acts between the external body of moldable material and the clutch release bearing 66 to maintain the latter in constant support on the declutching means 163.
La butée de débrayage 66 comporte un roulement à billes avec une bague tournante profilée pour contact ponctuel avec les extrémités internes des doigts du diaphragme 163 et une bague non tournante attelée axialement au piston 169, qui porte ainsi la butée 66.The declutching stop 66 comprises a ball bearing with a profiled rotating ring for punctual contact with the internal ends of the fingers of the diaphragm 163 and a non-rotating ring axially coupled to the piston 169, which thus carries the stop 66.
Ici, la bague extérieure du roulement est tournante, tandis que la bague intérieure du roulement est fixe en rotation et présente à sa périphérie interne un rebord radial en appui sur un épaulement avant du piston 169, ledit rebord étant plaqué sur ledit épaulement par une rondelle élastique à action axiale, ici en forme de rondelle Belleville, prenant appui sur le piston. La butée 66 a une forme de drapeau en sorte que la bague intérieure du roulement à billes est destinée à entourer l'extrémité avant de diamètre réduit du corps extérieur pour réduction de l'encombrement axial, sachant que le corps extérieur est destiné à être fixé sur le fond de la cloche 3, de manière directe, à l'aide d'oreilles, ou indirecte, à l'aide d'une semelle d'adaptation et d'un montage baïonnette.Here, the outer ring of the bearing is rotating, while the inner ring of the bearing is fixed in rotation and has at its internal periphery a radial flange bearing on a front shoulder of the piston 169, said flange being pressed against said shoulder by a washer. elastic with axial action, here in the form of a Belleville washer, bearing on the piston. The stop 66 has a flag shape so that the inner ring of the ball bearing is intended to surround the front end of reduced diameter of the outer body to reduce the axial bulk, knowing that the outer body is intended to be fixed on the bottom of the bell 3, directly, using ears, or indirectly, using an adapter sole and a bayonet mount.
Ici, le corps extérieur présente des oreilles de fixation et la butée 66 est du type autocentreuse car elle peut se déplacer radialement au contact de 1 ' épaulement du piston sous le contrôle de la rondelle élastique à action axiale.Here, the outer body has fixing lugs and the stop 66 is of the self-centering type because it can move radially in contact with the shoulder of the piston under the control of the elastic washer with axial action.
Pour plus de précisions, on se reportera, par exemple, au document W098/14713 montrant l'assemblage du corps extérieur avec le tube-guide. Bien entendu, un soufflet de protection non référencé est prévu pour un bon coulissement du piston 169. Quoi qu'il en soit, le dispositif de débrayage 166 est du type concentrique car il est destiné à être traversé par l'arbre d'entrée de la boîte de vitesses 2. Le dispositif 166 entoure donc l'arbre 2.For more details, reference is made, for example, to document WO98 / 14713 showing the assembly of the external body with the guide tube. Of course, a non-referenced protective bellows is provided for good sliding of the piston 169. Anyway, the declutching device 166 is of the concentric type because it is intended to be crossed by the input shaft of the gearbox 2. The device 166 therefore surrounds the shaft 2.
Le mécanisme d'embrayage 160 est ici associé à un disque de friction 170.The clutch mechanism 160 is here associated with a friction disc 170.
Le disque de friction 170 porte à sa périphérie externe au moins une garniture de friction 172 destinée à être serrée entre deux plateaux sous l'action des moyens embrayeurs 163.The friction disc 170 carries at its outer periphery at least one friction lining 172 intended to be clamped between two plates under the action of the engagement means 163.
Le disque de friction 170 présente centralement un moyeu 171 cannelé intérieurement pour liaison en rotation avec l'arbre mené 2. La garniture de friction 172 est solidaire d'un support 173 accouplé de manière rigide ou élastique au moyeu 171.The friction disc 170 has centrally a hub 171 internally grooved for connection in rotation with the driven shaft 2. The friction lining 172 is secured to a support 173 rigidly or resiliently coupled to the hub 171.
L'arbre 2 traverse donc le dispositif de débrayage 166 et le moyeu 171 du disque de friction 170. Usuellement, l'extrémité de l'arbre 2 est reçue dans un palier pilote porté par l'arbre de sortie 1 du moteur à combustion interne, à savoir, ici, le vilebrequin du moteur à combustion interne du véhicule. L'arbre 1 est donc un arbre menant .The shaft 2 therefore passes through the declutching device 166 and the hub 171 of the friction disc 170. Usually, the end of the shaft 2 is received in a pilot bearing carried by the output shaft 1 of the internal combustion engine , namely, here, the crankshaft of the internal combustion engine of the vehicle. Tree 1 is therefore a leading tree.
Le support 173 peut être noyé dans la garniture 172. Ici, deux garnitures 172 identiques sont disposées axialement de part et d'autre du support 173 axialement élastique, en étant fixées à celui- ci par collage ; ceci permet de réduire l'encombrement axial, l'épaisseur morte des garnitures 172 destinée à l'opération de rivetage étant supprimée, lorsque, en variante, les garnitures 172 sont fixées au support 173 par rivetage, le support 173 étant conformé à sa périphérie externe pour être axialement élastique et écrasé progressivement. Ici, par exemple, les garnitures de friction 172 peuvent être collées directement dans les zones centrales de portée des pales tripodes décrites dans le document FR-A-2 693 778 auquel on pourra se reporter pour plus de précisions.The support 173 can be embedded in the liner 172. Here, two identical linings 172 are arranged axially on either side of the support 173 axially elastic, being fixed thereto by gluing; this makes it possible to reduce the axial size, the dead thickness of the linings 172 intended for the riveting operation being eliminated, when, as a variant, the linings 172 are fixed to the support 173 by riveting, the support 173 being shaped at its periphery external to be axially elastic and progressively crushed. Here, for example, the friction linings 172 can be glued directly into the central bearing areas of the tripod blades described in document FR-A-2 693 778 to which reference may be made for more details.
La garniture 172 du disque de friction 170 est adaptée à être serrée entre le plateau 116 du volant secondaire 112 et le plateau de pression 162 du mécanisme d'embrayage 160.The lining 172 of the friction disc 170 is adapted to be clamped between the plate 116 of the secondary flywheel 112 and the pressure plate 162 of the clutch mechanism 160.
Le couvercle 161 est fixé par sa périphérie externe en extrémité du plateau 116 du volant secondaire 112, ici par des vis 68. Le plateau de pression 162 présente un bossage annulaire 69 d'orientation axiale dirigé vers le fond 164 du couvercle 161 pour contact avec la périphérie externe de la rondelle Belleville du diaphragme 163 ; ce bossage 69 est fractionné et venu de moulage avec le plateau de pression 162.The cover 161 is fixed by its external periphery at the end of the plate 116 of the secondary flywheel 112, here by screws 68. The pressure plate 162 has an annular boss 69 of axial orientation directed towards the bottom 164 of the cover 161 for contact with the external periphery of the Belleville washer of the diaphragm 163; this boss 69 is split and molded with the pressure plate 162.
La périphérie interne de la rondelle Belleville du diaphragme 163 est montée de manière basculante ou pivotante entre un appui primaire issu ici du fond 164 du couvercle 161 par emboutissage et un appui secondaire ici constitué par des colonnettes traversant axialement les orifices élargis du diaphragme 163.The internal periphery of the Belleville washer of the diaphragm 163 is pivotally or pivotally mounted between a primary support here coming from the bottom 164 of the cover 161 by stamping and a secondary support here consisting of small columns axially passing through the enlarged orifices of the diaphragm 163.
Le plateau de pression 162 est lié en rotation au couvercle 161 par des languettes tangentielles 176 élastiques à action axiale autorisant un mouvement axial du plateau de pression 162 par rapport au couvercle 161 lui-même lié au volant secondaire 112 ; les languettes 176 sont liées au couvercle 161 par des rivets et à des pattes saillantes radiales du plateau de pression 162 également par des rivets 178.The pressure plate 162 is linked in rotation to the cover 161 by elastic tangential tongues 176 with axial action allowing axial movement of the pressure plate 162 relative to the cover 161 itself linked to the secondary flywheel 112; the tongues 176 are linked to the cover 161 by rivets and to projecting radial tabs of the pressure plate 162 also by rivets 178.
Ainsi qu'on l'aura compris, les languettes 176 exercent une action élastique de rappel du plateau de pression 162 en direction du fond 164 du couvercle 161 et le plateau de pression 162 présente frontalement une face de friction pour contact avec la garniture concernée 172 du disque de friction 170, tandis que le plateau 116 du volant secondaire 112 présente frontalement et dorsalement une face de friction pour contact avec l'autre garniture de friction 172. Normalement, l'embrayage est donc engagé et le couple moteur est transmis de l'arbre menant 1 à l'arbre mené 2 via l'embrayage.As will be understood, the tongues 176 exert an elastic return action of the pressure plate 162 in the direction of the bottom 164 of the cover 161 and the pressure plate 162 frontally has a friction face for contact with the lining concerned 172 of the friction disc 170, while the plate 116 of the secondary flywheel 112 has a friction face frontally and dorsally for contact with the other friction lining 172. Normally, the clutch is therefore engaged and the engine torque is transmitted from the drive shaft 1 to driven shaft 2 via the clutch.
Dans cette position, la rondelle Belleville du diaphragme 163, c'est-à-dire les moyens embrayeurs de l'embrayage, est en contact, d'une part, à sa périphérie interne avec l'appui primaire, et, d'autre part, à sa périphérie externe avec le bossage 69 du plateau de pression 162. Le diaphragme 163 sollicite donc le plateau de pression 162 en direction du plateau 116 du volant secondaire 112 en sorte que les garnitures de friction 172 du disque de friction 170 sont serrées entre les plateaux de pression 162 et du volant secondaire 112. Le disque de friction 170 est donc entraîné en rotation en sorte que le moyeu 171, accouplé avec les garnitures 172, entraînent en rotation 1 ' arbre mené 2.In this position, the Belleville washer of the diaphragm 163, that is to say the clutch engagement means, is in contact, on the one hand, at its internal periphery with the primary support, and, on the other hand part, at its outer periphery with the boss 69 of the pressure plate 162. The diaphragm 163 therefore urges the pressure plate 162 in the direction of the plate 116 of the secondary flywheel 112 so that the friction linings 172 of the friction disc 170 are tight between the pressure plates 162 and the secondary flywheel 112. The friction disc 170 is therefore rotated so that the hub 171, coupled with the linings 172, rotates the driven shaft 2.
Dans cette position, le piston 169 du dispositif de débrayage 166 est en position reculée, partie supérieure de la figure 1, et la cavité 168 est dépressurisée. Lorsque l'on pressurise la cavité 168, le piston 169 se déplace vers la gauche, partie inférieure de la figure 1, et entraîne donc la butée de débrayage 66, qui agit alors en poussant sur les doigts du diaphragme 163, pour faire pivoter celui-ci.In this position, the piston 169 of the declutching device 166 is in the retracted position, upper part of FIG. 1, and the cavity 168 is depressurized. When the cavity 168 is pressurized, the piston 169 moves to the left, lower part of FIG. 1, and therefore drives the clutch release bearing 66, which then acts by pushing on the fingers of the diaphragm 163, to rotate the one -this.
Le diaphragme 163 quitte alors son appui primaire pour prendre appui sur son appui secondaire. Dans ce cas, la charge exercée par le diaphragme 163 sur le plateau de pression 162 diminue puis s'annule, le plateau de pression 162 suivant alors le mouvement du diaphragme 163 sous l'action de rappel des languettes 176. Les garnitures de friction 172 sont alors libérées et l'embrayage désengagé. Le couple moteur n'est alors pas transmis.The diaphragm 163 then leaves its primary support to take support on its secondary support. In this case, the load exerted by the diaphragm 163 on the pressure plate 162 decreases then vanishes, the pressure plate 162 then following the movement of the diaphragm 163 under the return action of the tongues 176. The friction linings 172 are then released and the clutch disengaged. The engine torque is then not transmitted.
Lorsque l'on dépressurise la cavité 168, le diaphragme 163 ramène le piston 169 en arrière et les garnitures 172 sont serrées. Comme connu en soi, lorsque les volants primaire 111 et secondaire 112 ont un mouvement de rotation l'un par rapport à l'autre, l'action des moyens de frottement 140 accompagne celle des moyens élastiques 25.When the cavity 168 is depressurized, the diaphragm 163 brings the piston 169 back and the linings 172 are tight. As known per se, when the primary 111 and secondary 112 flywheels have a rotational movement with respect to each other, the action of the friction means 140 accompanies that of the elastic means 25.
Les ressorts 25 ont ici une forme courbe en étant précintrés et des pièces en forme de goulotte (non référencées) sont interposées ici entre les ressorts 25 et la périphérie interne de la jupe 115 pour réduire les usures. Le rotor 151 a une grande étendue axiale et il en est de même du stator 152. La machine 150 a ainsi un bon rendement . Le rotor 151 comporte un paquet de tôles, en fer doux, monté par frettage sur la périphérie externe de la jupe primaire 115. On monte donc à chaud le paquet de tôles par emmanchement sur la périphérie externe de la jupe primaire 115 jusqu'au contact avec le bord saillant du plateau d'appui 134A. Les tôles de forme annulaire forment ainsi une couronne d'orientation axiale montée par frettage sur la jupe primaire 115. Les tôles peuvent être isolées par oxydation ou munies d' isolants .The springs 25 have here a curved shape by being pre-bent and pieces in the form of a chute (not referenced) are interposed here between the springs 25 and the internal periphery of the skirt 115 to reduce wear. The rotor 151 has a large axial extent and it is the same for the stator 152. The machine 150 thus has a good efficiency. The rotor 151 comprises a pack of sheets, made of soft iron, mounted by hooping on the outer periphery of the primary skirt 115. The pack of sheets is therefore hot mounted by fitting on the outer periphery of the primary skirt 115 until contact with the projecting edge of the support plate 134A. The annular sheets thus form an axial orientation crown mounted by hooping on the primary skirt 115. The sheets can be isolated by oxidation or provided with insulators.
Le stator 152 est formé, de manière similaire au rotor 151, à partir d'un paquet de tôles annulaires, en fer doux, reconstituant une couronne d'orientation axiale. Des encoches sont réalisées dans les tôles pour passage d'enroulements de fils électriques 154, le rotor 151 et le stator 152 étant représentés de manière schématique.The stator 152 is formed, similar to the rotor 151, from a pack of annular sheets, made of soft iron, reconstituting a crown of axial orientation. Notches are made in the sheets for passage of windings of electric wires 154, the rotor 151 and the stator 152 being shown schematically.
En injectant un courant électrique asservi dans les enroulements statoriques, on transforme la machine électrique 150 en démarreur pour le moteur à combustion interne du véhicule.By injecting a controlled electric current into the stator windings, the electric machine 150 is transformed into a starter for the internal combustion engine of the vehicle.
Pour cela, il faut prévoir un dispositif de commande du type électronique. La machine est ici du type moteur électrique asynchrone. Bien entendu, la machine électrique peut être du type moteur électrique synchrone ou autre. En général, lorsque le moteur tourne, la machine joue le rôle d'un alternateur. On peut couper le moteur à combustion interne à chaque arrêt et le redémarrer grâce à la machine. La machine peut constituer un frein électrique et apporter un surplus d'énergie au moteur à combustion interne pour l'assister ou éviter que celui-ci ne cale ; on peut également filtrer les vibrations.For this, it is necessary to provide a control device of the electronic type. The machine is here of the asynchronous electric motor type. Of course, the electric machine can be of the synchronous electric motor or other type. In general, when the engine is running, the machine acts as an alternator. The internal combustion engine can be shut down at each stop and restarted using the machine. The machine can constitute an electric brake and provide a surplus of energy to the internal combustion engine to assist it or prevent it from stalling; we can also filter vibrations.
Pour plus de précisions, on se reportera au document WO98/105882.For more details, see document WO98 / 105882.
En variante, on fixe le rotor 151 sur la périphérie externe de la jupe primaire 115 à l'aide de cannelures ou par emmanchement par cônes. Dans tous les cas, le rotor 151 est solidaire tant en rotation qu' axialement du volant primaire 111.As a variant, the rotor 151 is fixed to the external periphery of the primary skirt 115 by means of grooves or by fitting with cones. In all cases, the rotor 151 is integral both in rotation and axially with the primary flywheel 111.
Bien entendu, on peut fixer le rotor 151 sur la jupe primaireOf course, the rotor 151 can be fixed on the primary skirt
115 à l'aide de vis prenant appui sur une rondelle de fixation, traversant le paquet de tôles de manière similaire à ce qui est décrit dans le document DE-C- 3 227 810. On peut utiliser aussi des éléments élastiques.115 using screws bearing on a fixing washer, passing through the sheet pack in a similar manner to that described in document DE-C-3 227 810. Elastic elements can also be used.
Le stator 152 est fixé ici par frettage à sa périphérie externe sur la cloche. Toute autre forme de fixation comme le vissage est envisageable . On appréciera que le mode de fixation par frettage favorise la réduction de 1 ' encombrement radial . Ici, l'ensemble présente toutes les fonctions de confort désirées, tout en étant peu encombrant radialement et ayant de bonnes performances .The stator 152 is fixed here by shrinking at its outer periphery on the bell. Any other form of fixing such as screwing is possible. It will be appreciated that the method of fixing by shrinking favors the reduction of one radial size. Here, the assembly has all the desired comfort functions, while being compact radially and having good performance.
Bien entendu, l'embrayage peut être équipé d'un dispositif de rattrapage d'usure pour compenser notamment l'usure des garnitures de friction et maintenir le diaphragme dans une position constante lorsque l'embrayage est engagé.Of course, the clutch can be equipped with a wear take-up device in particular to compensate for the wear of the friction linings and to maintain the diaphragm in a constant position when the clutch is engaged.
Dans la figure 1, l'embrayage est du type poussé car la butée 66 agit en poussant centralement sur le diaphragme 163. En variante, l'embrayage est du type tiré. Dans ce cas, la butée est attelée à une pièce d'accostage agissant derrière le diaphragme et traversant l'ouverture centrale du diaphragme.In FIG. 1, the clutch is of the pushed type because the stop 66 acts by pushing centrally on the diaphragm 163. As a variant, the clutch is of the pulled type. In this case, the stop is coupled to a docking part acting behind the diaphragm and passing through the central opening of the diaphragm.
L'opération de débrayage est réalisée en tirant, via une pièce d'accostage, sur les doigts du diaphragme. Dans ce cas, la partie périphérique de la rondelle Belleville du diaphragme est en contact, à sa périphérie externe, avec un appui porté par le couvercle et sa périphérie interne avec le bossage du plateau de pression. Pour plus de précisions, on se reportera, par exemple, au document FR-A-2 606 477 montrant également un dispositif de rattrapage d'usure. Il en résulte que le bossage 69 de plateau de pression 162 peut être mobile par rapport au plateau de pression 162 pour compenser l'usure des garnitures de friction, des ressorts à action circonférentielle agissant entre le plateau de pression 162 et le bossage 69, des moyens à rampes faisant varier la distance axiale entre le bossage 69 et le plateau de pression 162. Le rotor peut être plus court axialement.The declutching operation is carried out by pulling, via a docking piece, on the fingers of the diaphragm. In this case, the peripheral part of the Belleville washer of the diaphragm is in contact, at its external periphery, with a support carried by the cover and its internal periphery with the boss of the pressure plate. For more details, reference is made, for example, to document FR-A-2 606 477 also showing a device for taking up wear. As a result, the boss 69 of the pressure plate 162 can be movable relative to the pressure plate 162 to compensate for the wear of the friction linings, circumferentially acting springs acting between the pressure plate 162 and the boss 69, ramp means varying the axial distance between the boss 69 and the pressure plate 162. The rotor may be shorter axially.
Le rotor 151 comme visible à la figure 1 peut être doté d'une cage d'écureuil avec des pièces en cuivre ou en aluminium.The rotor 151 as visible in FIG. 1 can be provided with a squirrel cage with copper or aluminum parts.
Des inserts métalliques peuvent être logés dans les volants pour renforcer ceux-ci. Par exemple, les inserts, en section, ont une forme d'équerre logée en partie dans le plateau et en partie dans la jupe.Metal inserts can be housed in the steering wheels to reinforce them. For example, the inserts, in section, have a square shape housed partly in the plate and partly in the skirt.
En variante, les inserts sont d'orientation axiale, comme décrit dans le document FR-A-2 718 806 auquel on se reportera pour plus de précisions. Les inserts dans le volant secondaire 112 peuvent servir à fixer le couvercle 161. Ces inserts peuvent dépasser du volant secondaire et former des cibles respectivement pour la machine électrique et l'allumage du moteur.As a variant, the inserts are of axial orientation, as described in document FR-A-2 718 806 to which reference will be made for more details. The inserts in the secondary flywheel 112 can be used to fix the cover 161. These inserts can protrude from the flywheel secondary and form targets respectively for the electric machine and the engine ignition.
Bien entendu, la butée 134A peut être remplacée par des inserts noyés dans la jupe primaire 115, les inserts ayant un rebord plié radialement vers l'extérieur pour former la butée.Of course, the stop 134A can be replaced by inserts embedded in the primary skirt 115, the inserts having a rim folded radially outward to form the stop.
La machine 150 peut servir à synchroniser la vitesse des arbres 1 et 2 pour faciliter le passage des vitesses. Il est dans ce cas intéressant que la butée 66 soit manoeuvrée par un récepteur dont 1 ' émetteur est manœuvré par un actionneur piloté par un calculateur recevant les informations provenant de capteurs recevant la vitesse des arbres 1 et 2.The machine 150 can be used to synchronize the speed of the shafts 1 and 2 to facilitate the change of gears. In this case, it is advantageous for the stop 66 to be operated by a receiver, the transmitter of which is operated by an actuator controlled by a computer receiving information from sensors receiving the speed of the shafts 1 and 2.
Bien entendu tout type de machines électriques, à flux magnétique axial ou radial peut convenir. La machine 150 peut être du type asynchrone, de manière précitée, synchrone à aimant dans l'entrefer ou enterré, à commutation de flux à aimants seuls ou hybrides avec des excitations par des bobinages au stator, à griffes sans balais, à réluctance variable, à simple ou double excitation, à flux transversal à effet Vernier.Of course any type of electric machine, with axial or radial magnetic flux may be suitable. The machine 150 can be of the asynchronous type, as mentioned above, synchronous with magnet in the air gap or buried, with flux switching with single or hybrid magnets with excitations by stator windings, with brushless claws, with variable reluctance, single or double excitation, cross flow with Vernier effect.
La machine électrique peut être du type synchrone avec un système bague-balais.The electric machine can be of the synchronous type with a brush-ring system.
La figure 2 représente une autre variante d'ensemble selon l'invention ; sur cette figure, les pièces identiques à celles de la figure 1, ou jouant le même rôle, portent une référence identique ou augmentée de cent et ne seront pas décrites à nouveau en détails. Ici, le double volant amortisseur 200 comprend également des moyens élastiques constitués de deux rangées de ressorts disposées côte à côte axialement et l'embrayage ne comprend qu'un disque de friction, comme à la figure 2.FIG. 2 represents another variant of the assembly according to the invention; in this figure, the parts identical to those of FIG. 1, or playing the same role, bear an identical reference or increased by one hundred and will not be described again in detail. Here, the double damping flywheel 200 also comprises elastic means constituted by two rows of springs arranged side by side axially and the clutch comprises only a friction disc, as in FIG. 2.
Le volant secondaire 212 présente une jupe secondaire 218, entourée par la jupe primaire 215, comme à la figure 1, mais ici les jupes 218, 215 s'étendent axialement l'une vers l'autre depuis respectivement le plateau 216 du volant secondaire 212 et le fond du volant primaire 211 en forme de C. Ainsi, la coupe 233 est inversée par rapport à la coupe 133 de la figure 2 ; elle est fixée par son bord en bout de la jupe secondaire 218 en même temps que le flasque d'appui 234A dont des emboutis servent d'appui aux ressorts 25 de la rangée disposée du côté du volant primaire 211.The secondary flywheel 212 has a secondary skirt 218, surrounded by the primary skirt 215, as in Figure 1, but here the skirts 218, 215 extend axially towards each other from respectively the plate 216 of the secondary flywheel 212 and the bottom of the primary flywheel 211 in the form of C. Thus, the section 233 is inverted with respect to the section 133 in FIG. 2; it is fixed by its edge at the end of the secondary skirt 218 at the same time as the flange support 234A of which stamps serve as support for the springs 25 of the row arranged on the side of the primary flywheel 211.
Entre le moyeu central 213 du volant primaire 211 et la rondelle 223, avec laquelle coopèrent les têtes des vis 14, sont disposées axialement deux rondelles entretoises 223A, 223B.Between the central hub 213 of the primary flywheel 211 and the washer 223, with which the heads of the screws 14 cooperate, are arranged axially two spacer washers 223A, 223B.
Entre le moyeu central 213 et la première rondelle entretoise 223A est pincé un premier voile 227 et entre les première 223A et seconde 223B rondelles entretoises est pincé un second voile 227A.Between the central hub 213 and the first spacer washer 223A is pinched a first web 227 and between the first 223A and second 223B spacer washers is pinched a second web 227A.
Les voiles 227 et 227A présentent, comme précédemment, des échancrures à leur périphérie externe avec la tranche desquelles coopèrent respectivement les ressorts 25 de chaque rangée de ressorts .The webs 227 and 227A have, as before, notches at their outer periphery with the edge of which the springs 25 of each row of springs respectively cooperate.
Le fond 234 de la coupe 233, disposé entre les deux rangées de ressorts, porte les patins d'appui, de même que le plateau 216 du volant secondaire 212, pour appui des ressorts 25 de part et d'autre des voiles 227 et 227A.The bottom 234 of the section 233, disposed between the two rows of springs, carries the support pads, as does the plate 216 of the secondary flywheel 212, for support of the springs 25 on either side of the sails 227 and 227A .
Ici, la rondelle de frottement 240, ainsi que la rondelle d'application et la rondelle élastique associées, entoure la première rondelle entretoise 223A et coopère en frottement avec le premier voile 227, en étant entraînée par une patte axiale issue du fond 234 de la coupe 233 et appliquée par une rondelle élastique en appui sur la première rondelle entretoise 223A.Here, the friction washer 240, as well as the associated application washer and the elastic washer, surrounds the first spacer washer 223A and cooperates in friction with the first web 227, being driven by an axial tab from the bottom 234 of the section 233 and applied by an elastic washer bearing on the first spacer washer 223A.
Ici, le roulement 221 est placé entre le plateau 216 du volant secondaire 212 et la seconde rondelle entretoise 223B. Pour formation du premier sous-ensemble, des rivets 220A solidarisent le moyeu central 213 du volant primaire 211 et la première rondelle entretoise 223A, tandis que des rivets 220B solidarisent les deux rondelles entretoises 223A et 223B, les rivets 220A et 220B étant décalés circonférentiellement . Comme à la figure 1, le plateau 216 du volant secondaire 212 s'étend radialement au delà du rotor 251 qu'il longe.Here, the bearing 221 is placed between the plate 216 of the secondary flywheel 212 and the second spacer washer 223B. For the formation of the first sub-assembly, rivets 220A join the central hub 213 of the primary flywheel 211 and the first spacer washer 223A, while rivets 220B join the two spacer washers 223A and 223B, the rivets 220A and 220B being circumferentially offset. As in FIG. 1, the plate 216 of the secondary flywheel 212 extends radially beyond the rotor 251 that it runs along.
Le mécanisme d'embrayage 160 et le disque de friction 170 sont identiques à ceux de la figure 1.The clutch mechanism 160 and the friction disc 170 are identical to those of FIG. 1.
La figure 3 représente une autre variante d'ensemble selon l'invention ; sur cette figure, les pièces identiques à celles de la figure 2, ou jouant le même rôle, portent une référence identique ou augmentée de 100 et ne seront pas décrites à nouveau en détail.FIG. 3 represents another variant of the assembly according to the invention; in this figure, the parts identical to those of the Figure 2, or playing the same role, carry an identical reference or increased by 100 and will not be described again in detail.
Ici, par rapport à l'ensemble de la figure 2, le volant primaire 311 ne comporte pas de jupe primaire, et c'est la jupe secondaire 318 du volant secondaire 312 qui porte le rotor 351 de la machine électrique 350, les autres constituants de l'ensemble de la figure 3 étant identiques à ceux de la figure 2 et assemblés de la même manière.Here, with respect to the assembly of FIG. 2, the primary flywheel 311 does not have a primary skirt, and it is the secondary skirt 318 of the secondary flywheel 312 which carries the rotor 351 of the electric machine 350, the other constituents of the assembly of Figure 3 being identical to those of Figure 2 and assembled in the same manner.
Ainsi qu'il ressort à l'évidence de la description, le volant primaire 111, 211,311 et le plateau de réaction 116, 216, 316 sont avantageusement en matière moulable, ici de la fonte.As is evident from the description, the primary flywheel 111, 211, 311 and the reaction plate 116, 216, 316 are advantageously made of moldable material, here cast iron.
Dans tous les cas, les rangées de ressorts 25 sont logées sous le rotor 151, 251,351 de la machine électrique. Ces ressorts 25 peuvent être droits au lieu d'être courbés. Grâce à la présence des ressorts 25, le disque de friction peut être du type rigide en sorte que la ou les garnitures de friction sont reliées rigidement au moyeu concerné.In all cases, the rows of springs 25 are housed under the rotor 151, 251, 351 of the electric machine. These springs 25 can be straight instead of being bent. Thanks to the presence of the springs 25, the friction disc can be of the rigid type so that the friction lining or linings are rigidly connected to the hub concerned.
La coupe 133 de la figure 1 et les coupes 233 et 333 des figures 2 et 3 permettent de rigidifier respectivement les jupes 115, 218 et 318 grâce notamment à leur rebord plaqué contre la face d'extrémité de la jupe.The section 133 in FIG. 1 and the sections 233 and 333 in FIGS. 2 and 3 make it possible to stiffen the skirts 115, 218 and 318 respectively thanks in particular to their rim pressed against the end face of the skirt.
L'entraînement de la rondelle de frottement 140, 240, 340 est réalisé simplement à l'aide d'au moins une patte d'orientation axiale obtenue par découpe et pliage à partir du voile 127 ou du fond 234, 334, c'est-à-dire à partir de pièces métalliques.The drive of the friction washer 140, 240, 340 is carried out simply using at least one lug of axial orientation obtained by cutting and folding from the web 127 or from the bottom 234, 334, that is i.e. from metal parts.
Aux figures 2 et 3 , le voile 227,327 a une double fonction puisqu'il sert également de portée de frottement. In FIGS. 2 and 3, the web 227,327 has a double function since it also serves as a friction surface.

Claims

REVENDICATIONS
1. Ensemble constitué d'un embrayage associé à une machine électrique (150,250,350), en particulier pour véhicule automobile équipé d'un double volant amortisseur (100,200,300) du genre comportant un volant primaire (111,211,311) destiné à être relié au vilebrequin (1) du moteur du véhicule et un volant secondaire (112,212,312) destiné à recevoir le mécanisme d'embrayage (160) de l'embrayage qui comprend un couvercle (161), des moyens embrayeurs- débrayeurs (163) et un plateau de pression (162), des moyens amortisseurs de torsion à action circonférentielle étant disposés cinématiquement entre les volants primaire (111,211,311) et secondaire (112,212,312), les moyens élastiques étant constitués par des ressorts (25) disposés circonférentiellement et prenant appui d'un côté sur le volant primaire (111,211,311) et de l'autre côté sur le volant secondaire (112,212,312), lesdits ressorts (25) étant répartis selon deux rangées décalées axialement.1. Assembly consisting of a clutch associated with an electric machine (150,250,350), in particular for a motor vehicle equipped with a double damping flywheel (100,200,300) of the type comprising a primary flywheel (111,211,311) intended to be connected to the crankshaft (1) the vehicle engine and a secondary flywheel (112,212,312) intended to receive the clutch mechanism (160) of the clutch which comprises a cover (161), clutch-declutching means (163) and a pressure plate (162) , torsional damping means with circumferential action being kinematically disposed between the primary (111,211,311) and secondary (112,212,312) flywheels, the elastic means being constituted by springs (25) arranged circumferentially and bearing on one side on the primary flywheel ( 111,211,311) and on the other side on the secondary flywheel (112,212,312), said springs (25) being distributed in two rows offset axially.
2. Ensemble selon la revendication 1, caractérisé par le fait que le rotor (151,251) de la machine électrique (150,250) est porté par le volant primaire (111,211), le volant secondaire (112,212) comportant un plateau (116,216) ayant une face de friction avec laquelle est adaptée à coopérer au moins une garniture (172) d'un disque de friction (170) sous l'action des moyens embrayeurs (163) par l'intermédiaire du plateau de pression (162).2. Assembly according to claim 1, characterized in that the rotor (151,251) of the electric machine (150,250) is carried by the primary flywheel (111,211), the secondary flywheel (112,212) comprising a plate (116,216) having a face friction with which is adapted to cooperate at least one lining (172) of a friction disc (170) under the action of the engagement means (163) via the pressure plate (162).
3. Ensemble selon la revendication 2, caractérisé par le fait que le volant primaire (111,211) présente une jupe dite primaire3. Assembly according to claim 2, characterized in that the primary steering wheel (111,211) has a so-called primary skirt
(115,215) d'orientation axiale à la périphérie externe de laquelle est solidarisé le rotor (151,251).(115,215) of axial orientation at the external periphery of which the rotor (151,251) is secured.
4. Ensemble selon la revendication 3, caractérisé par le fait que le rotor (151,251) est solidarisé à la jupe primaire (115,215) par frettage.4. An assembly according to claim 3, characterized in that the rotor (151,251) is secured to the primary skirt (115,215) by shrinking.
5. Ensemble selon l'une des revendications 3 ou 4 , caractérisé par le fait que le plateau (216) du volant secondaire (212) est muni à sa périphérie externe d'une jupe (218) dite secondaire d'orientation axiale entourée par la jupe primaire (215). 5. Assembly according to one of claims 3 or 4, characterized in that the plate (216) of the secondary flywheel (212) is provided at its outer periphery with a skirt (218) called secondary axially oriented surrounded by the primary skirt (215).
6. Ensemble selon la revendication 5, caractérisé par le fait que les jupes primaire (215) et secondaire (218) s'étendent axialement 1 ' une vers 1 ' autre .6. An assembly according to claim 5, characterized in that the primary (215) and secondary (218) skirts extend axially from one to the other.
7. Ensemble selon la revendication 1, caractérisé par le fait que le rotor (351) de la machine électrique (350) est porté par le volant secondaire (311), lequel comporte un plateau (316) ayant une face de friction avec laquelle est adaptée à coopérer au moins une garniture (172) d'un disque de friction (170) sous l'action des moyens embrayeurs (163) par l'intermédiaire du plateau de pression (162).7. Assembly according to claim 1, characterized in that the rotor (351) of the electric machine (350) is carried by the secondary flywheel (311), which comprises a plate (316) having a friction face with which is adapted to cooperate at least one lining (172) of a friction disc (170) under the action of the engagement means (163) via the pressure plate (162).
8. Ensemble selon la revendication 7, caractérisé par le fait que le volant secondaire (311) présente une jupe dite secondaire8. An assembly according to claim 7, characterized in that the secondary flywheel (311) has a so-called secondary skirt
(318) d'orientation axiale à la périphérie externe de laquelle est solidarisé le rotor (351) . (318) axially oriented at the outer periphery of which the rotor (351) is secured.
9. Ensemble selon la revendication 8, caractérisé par le fait que le rotor (351) est solidarisé à la jupe secondaire (318) par frettage .9. The assembly of claim 8, characterized in that the rotor (351) is secured to the secondary skirt (318) by hooping.
10. Ensemble selon l'une des revendications 1 à 9, caractérisé par le fait que le volant primaire (111,211,311) présente un moyeu central (113,213,313) par lequel il est relié au vilebrequin (1) du moteur .10. Assembly according to one of claims 1 to 9, characterized in that the primary flywheel (111,211,311) has a central hub (113,213,313) by which it is connected to the crankshaft (1) of the engine.
11. Ensemble selon l'une des revendications 1 à 10, caractérisé par le fait qu'il ne comporte qu'un disque de friction (170).11. Assembly according to one of claims 1 to 10, characterized in that it comprises only a friction disc (170).
12. Ensemble selon la revendication 11, caractérisé par le fait que le disque de friction (170) est déporté axialement par rapport à la jupe primaire (115,215) ou secondaire (318).12. The assembly of claim 11, characterized in that the friction disc (170) is offset axially relative to the primary skirt (115,215) or secondary (318).
13. Ensemble selon l'une des revendications 1 à 12 , caractérisé par le fait que les moyens amortisseurs de torsion comprennent des moyens de frottement (140,240,340) à action axiale. 13. Assembly according to one of claims 1 to 12, characterized in that the torsion damping means comprise friction means (140,240,340) with axial action.
14. Ensemble selon l'une des revendications 1 à 13, caractérisé par le fait que les ressorts (25) des deux rangées sont en parallèle.14. Assembly according to one of claims 1 to 13, characterized in that the springs (25) of the two rows are in parallel.
15. Ensemble selon l'une des revendications 1 à 13, caractérisé par le fait que les ressorts (25) des deux rangées sont en série.15. Assembly according to one of claims 1 to 13, characterized in that the springs (25) of the two rows are in series.
16. Ensemble selon l'une des revendications 1 à 15, caractérisé par le fait que la jupe primaire (115,215) ou secondaire (315) entoure les ressorts (25) . 16. Assembly according to one of claims 1 to 15, characterized in that the primary (115,215) or secondary (315) skirt surrounds the springs (25).
17. Ensemble selon l'une des revendications 2 à 16, caractérisé par le fait que le plateau (116,216,316) du volant secondaire17. Assembly according to one of claims 2 to 16, characterized in that the plate (116,216,316) of the secondary flywheel
(112,212,312) avec lequel coopère la garniture du disque de friction (170) s'étend transversalement au delà du rotor (151,251,351) qu'il longe.(112,212,312) with which the lining of the friction disc (170) cooperates extends transversely beyond the rotor (151,251,351) which it runs along.
18. Ensemble selon la revendication 17, caractérisé par le fait que la jupe primaire (115,215) du volant primaire (111,211) et/ou la jupe secondaire (218, 318) du volant secondaire (212,312) entoure les deux rangées de ressorts (25) disposées axialement côte à côte. 18. The assembly of claim 17, characterized in that the primary skirt (115,215) of the primary flywheel (111,211) and / or the secondary skirt (218, 318) of the secondary flywheel (212,312) surrounds the two rows of springs (25 ) arranged axially side by side.
19. Ensemble selon la revendication 18, caractérisé par le fait que le fond (134) d'une coupe (133) s'étend axialement entre les deux rangées de ressorts (25) et porte des patins (130) disposés dos à dos pour appui primaire des ressorts (25), le bord cylindrique axial de la coupe (133) s ' étendant le long de la périphérie interne de la jupe primaire (115) et présentant un rebord transversal (137) pour fixation de la coupe (133) en bout de ladite jupe primaire (115) .19. The assembly of claim 18, characterized in that the bottom (134) of a cut (133) extends axially between the two rows of springs (25) and carries pads (130) arranged back to back for primary support of the springs (25), the axial cylindrical edge of the cut (133) extending along the internal periphery of the primary skirt (115) and having a transverse rim (137) for fixing the cut (133) at the end of said primary skirt (115).
20. Ensemble selon la revendication 19, caractérisé par le fait que les autres appuis primaires des ressorts (25) sont constitués par des patins d'appui (130) portés, pour la rangée côté mécanisme d'embrayage (160), par un flasque d'appui (134A) solidarisé en bout de la jupe secondaire (115) et, pour l'autre rangée, par le fond du volant primaire (111) en forme de C.20. The assembly of claim 19, characterized in that the other primary supports of the springs (25) are constituted by support pads (130) carried, for the row on the clutch mechanism side (160), by a flange support (134A) secured at the end of the secondary skirt (115) and, for the other row, by the bottom of the primary C-shaped flywheel (111).
21. Ensemble selon l'une des revendications 19 ou 20, caractérisé par le fait que le plateau (116) du volant secondaire (112) présente à sa périphérie interne une collerette (117) en forme de moyeu à laquelle est solidarisée une couronne (119), avec interposition axiale d'un voile (127A) , un moyen de palier (121) étant placé entre la périphérie interne de la couronne (119) et la périphérie externe du moyeu central (113) du volant primaire (11) . 21. Assembly according to one of claims 19 or 20, characterized in that the plate (116) of the secondary flywheel (112) has at its internal periphery a collar (117) in the form of a hub to which a crown ( 119), with axial interposition of a web (127A), a bearing means (121) being placed between the internal periphery of the crown (119) and the external periphery of the central hub (113) of the primary flywheel (11).
22. Ensemble selon les revendications 20 et 21 prises conjointement, caractérisé par le fait que les appuis secondaires pour les ressorts (25) sont constitués par les bords radiaux d ' échancrures ménagées, pour la rangée côté mécanisme d'embrayage (160), dans le voile (127A) et, pour l'autre rangée, dans un voile (127) porté par la couronne (119) . 22. An assembly according to claims 20 and 21 taken together, characterized in that the secondary supports for the springs (25) are constituted by the radial edges of indentations, for the row on the clutch mechanism side (160), in the veil (127A) and, for the other row, in a veil (127) carried by the crown (119).
23. Ensemble selon la revendication 22 prise en combinaison avec la revendication 13, caractérisé par le fait que les moyens de frottement des moyens amortisseurs de torsion comportent une rondelle de frottement (140) présentant une échancrure (141) adaptée à recevoir une patte axiale (139) du voile (127) , ladite rondelle de frottement (140) étant appliquée contre la face interne du fond du volant primaire (111) en forme de C par une rondelle élastique (142) en appui sur le moyeu central (113) avec interposition d'une rondelle d'application (143). 23. The assembly of claim 22 taken in combination with claim 13, characterized in that the friction means of the torsion damping means comprise a friction washer (140) having a notch (141) adapted to receive an axial tab ( 139) of the web (127), said friction washer (140) being applied against the internal face of the bottom of the primary flywheel (111) in the form of a C by an elastic washer (142) bearing on the central hub (113) with interposition of an application washer (143).
24. Ensemble selon les revendications 7 et 8 prises conjointement, caractérisé par le fait que le moyeu central (213,313) du volant primaire (211,311) est solidaire de deux rondelles entretoises (223A,223B, 323A,323B) disposées axialement, un premier voile (227,327) étant pincé entre le moyeu central (213,313) et la première rondelle entretoise (223A,323A) et un second voile (227A,327A) étant pincé entre les deux rondelles entretoises (223A,223B,323A,323B) , un moyen de palier (221,321) étant placé entre le plateau (216,316) du volant secondaire (212,312) et la seconde rondelle entretoise (223B,323B). 24. An assembly according to claims 7 and 8 taken together, characterized in that the central hub (213,313) of the primary flywheel (211,311) is integral with two spacer washers (223A, 223B, 323A, 323B) arranged axially, a first web (227,327) being pinched between the central hub (213,313) and the first spacer washer (223A, 323A) and a second web (227A, 327A) being pinched between the two spacer washers (223A, 223B, 323A, 323B), a means bearing (221,321) being placed between the plate (216,316) of the secondary flywheel (212,312) and the second spacer washer (223B, 323B).
25. Ensemble selon la revendication 24, caractérisé par le fait que les appuis primaires des ressorts (25) des deux rangées sont constitués par le bord radial d' échancrures ménagées à la périphérie des voiles (227 , 227A, 327 , 327A) et les appuis secondaires, disposés par paires de part et d'autre des voiles (227, 227A, 327, 327A) , sont réalisés, d'un côté, par des patins d'appui portés par le fond25. The assembly of claim 24, characterized in that the primary supports of the springs (25) of the two rows are constituted by the radial edge of notches formed at the periphery of the sails (227, 227A, 327, 327A) and the secondary supports, arranged in pairs on either side of the sails (227, 227A, 327, 327A), are produced, on one side, by support pads carried by the bottom
(234,334) d'une coupe (233,333) s ' étendant entre les deux rangées de ressorts (25) et prolongé par un bord cylindrique s ' étendant à la périphérie interne de la jupe secondaire (218,318) muni d'un rebord pour fixation de la coupe (233,333) en bout de ladite jupe (218,318) et, de l'autre côté, pour la rangée côté mécanisme d'embrayage (160), par des patins d'appui portés par le plateau (213,313) et, pour l'autre rangée, par des emboutis d'un flasque d'appui (234A,334A) fixé en bout de la jupe secondaire (218,318) .(234,334) of a cut (233,333) extending between the two rows of springs (25) and extended by a cylindrical edge extending at the internal periphery of the secondary skirt (218,318) provided with a flange for fixing the section (233,333) at the end of said skirt (218,318) and, on the other side, for the row on the clutch mechanism side (160), by support pads carried by the plate (213,313) and, for the 'other row, by stampings of a support flange (234A, 334A) fixed at the end of the secondary skirt (218,318).
26. Ensemble selon la revendication 25, caractérisé par le fait que les moyens de frottement des moyens amortisseurs de torsion comportent une rondelle de frottement (240) présentant une échancrure adaptée à recevoir une patte axiale issue du fond (234) de la coupe (233) , ladite rondelle de frottement (240) étant appliquée contre la face en regard du premier voile (227) par une rondelle élastique en appui sur la première rondelle entretoise (223A) avec interposition d'une rondelle d'application.26. The assembly of claim 25, characterized in that the friction means of the torsion damping means comprise a friction washer (240) having a notch adapted to receive an axial tab from the bottom (234) of the cut (233), said friction washer (240) being applied against the opposite face of the first web (227) by an elastic washer bearing on the first spacer washer (223A) with interposition of an application washer.
27. Ensemble selon l'une des revendications 24 à 26, caractérisé par le fait que le plateau (216,316) du volant secondaire (212,312) avec lequel coopère la garniture du disque de friction (170) s'étend transversalement au delà du rotor (251,351) qu'il longe. 27. Assembly according to one of claims 24 to 26, characterized in that the plate (216,316) of the secondary flywheel (212,312) with which the lining of the friction disc (170) cooperates extends transversely beyond the rotor ( 251.351) along it.
28. Ensemble selon l'une des revendications 1 à 27, caractérisé par le fait qu'une butée de débrayage (66) est prévue pour action sur les moyens débrayeurs (163) associés aux moyens embrayeurs (163) pour contrecarrer à volonté l'action des moyens embrayeurs, la butée de débrayage (66) appartenant à un dispositif de débrayage (166) du type concentrique destiné à être traversé par un arbre mené (2) .28. Assembly according to one of claims 1 to 27, characterized in that a declutching stop (66) is provided for action on the declutching means (163) associated with the clutching means (163) to counteract at will the action of the engagement means, the clutch release bearing (66) belonging to a clutch release device (166) of the concentric type intended to be traversed by a driven shaft (2).
29. Ensemble selon la revendication 28, caractérisé par le fait que le dispositif de débrayage (166) comporte, d'une part, un piston (169) portant la butée de débrayage (66) monté mobile axialement par rapport à une partie fixe (167) présentant une cavité annulaire borgne (168) d'orientation axiale délimitée par le piston (169) pour définir une chambre de travail à volume variable.29. An assembly according to claim 28, characterized in that the declutching device (166) comprises, on the one hand, a piston (169) carrying the declutching stop (66) mounted axially movable relative to a fixed part ( 167) having a blind annular cavity (168) of axial orientation delimited by the piston (169) to define a variable volume working chamber.
30. Embrayage selon l'une des revendications 1 à 29, caractérisé par le fait que les moyens embrayeurs et débrayeurs appartiennent à un diaphragme (163) comportant une partie périphérique en forme de rondelle Belleville, constituant les moyens embrayeurs, prolongée par une partie centrale constituant les moyens débrayeurs, ladite partie centrale étant fragmentée en doigts radiaux par des fentes borgnes, dont les fonds forment des orifices élargis à la périphérie interne de la partie périphérique. 30. Clutch according to one of claims 1 to 29, characterized in that the engagement and disengagement means belong to a diaphragm (163) comprising a peripheral portion in the form of a Belleville washer, constituting the engagement means, extended by a central portion constituting the declutching means, said central part being fragmented into radial fingers by blind slots, the bottoms of which form enlarged orifices at the internal periphery of the peripheral part.
PCT/FR2000/002296 1999-08-10 2000-08-10 Assembly consisting of a clutch associated with an electric machine, in particular for motor vehicle WO2001010664A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU70113/00A AU7011300A (en) 1999-08-10 2000-08-10 Assembly consisting of a clutch associated with an electric machine, in particular for motor vehicle
KR1020017004475A KR20010075606A (en) 1999-08-10 2000-08-10 Assembly consisting of a clutch associated with an electric machine, in particular for motor vehicle
DE10082715T DE10082715T1 (en) 1999-08-10 2000-08-10 Assembly from a coupling in connection with an electrical machine, in particular for motor vehicles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9910373A FR2791009B1 (en) 1999-03-19 1999-08-10 ASSEMBLY CONSISTING OF A CLUTCH ASSOCIATED WITH AN ELECTRIC MACHINE, PARTICULARLY FOR A MOTOR VEHICLE
FR99/10373 1999-08-10

Publications (1)

Publication Number Publication Date
WO2001010664A1 true WO2001010664A1 (en) 2001-02-15

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PCT/FR2000/002296 WO2001010664A1 (en) 1999-08-10 2000-08-10 Assembly consisting of a clutch associated with an electric machine, in particular for motor vehicle

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AU (1) AU7011300A (en)
DE (1) DE10082715T1 (en)
WO (1) WO2001010664A1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2019174876A1 (en) * 2018-03-14 2019-09-19 Zf Friedrichshafen Ag Hybrid module comprising a module housing

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007002611A1 (en) * 2007-01-12 2008-07-24 Voith Patent Gmbh Hybrid drive unit with an internal combustion engine and a steam engine
KR102292764B1 (en) * 2020-02-14 2021-08-25 현대트랜시스 주식회사 Power transmission device for hybrid vehicle

Citations (5)

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Publication number Priority date Publication date Assignee Title
DE3545723A1 (en) * 1985-12-21 1987-06-25 Luk Lamellen & Kupplungsbau Frictional damping device for use in the power transmission path of a vehicle drive, in particular a clutch disc
DE3737192A1 (en) * 1986-11-11 1988-07-28 Volkswagen Ag Hybrid drive for a vehicle
DE4003076A1 (en) * 1990-02-02 1991-08-08 Fichtel & Sachs Ag Two-disc clutch for motor vehicle - has disc on gearbox side of clutch provided with additional splines
WO1999022955A1 (en) * 1997-11-04 1999-05-14 Magneti Marelli S.P.A A hybrid propulsion system for a motor vehicle
FR2777619A1 (en) * 1998-04-06 1999-10-22 Luk Lamellen & Kupplungsbau DIVIDED STEERING WHEEL

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3545723A1 (en) * 1985-12-21 1987-06-25 Luk Lamellen & Kupplungsbau Frictional damping device for use in the power transmission path of a vehicle drive, in particular a clutch disc
DE3737192A1 (en) * 1986-11-11 1988-07-28 Volkswagen Ag Hybrid drive for a vehicle
DE4003076A1 (en) * 1990-02-02 1991-08-08 Fichtel & Sachs Ag Two-disc clutch for motor vehicle - has disc on gearbox side of clutch provided with additional splines
WO1999022955A1 (en) * 1997-11-04 1999-05-14 Magneti Marelli S.P.A A hybrid propulsion system for a motor vehicle
FR2777619A1 (en) * 1998-04-06 1999-10-22 Luk Lamellen & Kupplungsbau DIVIDED STEERING WHEEL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019174876A1 (en) * 2018-03-14 2019-09-19 Zf Friedrichshafen Ag Hybrid module comprising a module housing

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DE10082715T1 (en) 2002-12-12
KR20010075606A (en) 2001-08-09

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