EP1769154B1 - Anlassermotor, insbesondere für ein kraftfahrzeug, ausgestattet mit einem freilaufendem reibanlasser - Google Patents

Anlassermotor, insbesondere für ein kraftfahrzeug, ausgestattet mit einem freilaufendem reibanlasser Download PDF

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Publication number
EP1769154B1
EP1769154B1 EP05775279.2A EP05775279A EP1769154B1 EP 1769154 B1 EP1769154 B1 EP 1769154B1 EP 05775279 A EP05775279 A EP 05775279A EP 1769154 B1 EP1769154 B1 EP 1769154B1
Authority
EP
European Patent Office
Prior art keywords
driver
starter
pinion
spring
coupling part
Prior art date
Legal status (The legal status 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 status listed.)
Not-in-force
Application number
EP05775279.2A
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English (en)
French (fr)
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EP1769154A1 (de
Inventor
Benoit Dupeux
Olivier Gizolme
Christian Mornieux
André PIREYRE
Gilles Vadin-Michaud
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Equipements Electriques Moteur SAS
Original Assignee
Valeo Equipements Electriques Moteur SAS
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Application filed by Valeo Equipements Electriques Moteur SAS filed Critical Valeo Equipements Electriques Moteur SAS
Publication of EP1769154A1 publication Critical patent/EP1769154A1/de
Application granted granted Critical
Publication of EP1769154B1 publication Critical patent/EP1769154B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
    • F02N15/025—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch of the friction type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
    • F02N15/067—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement the starter comprising an electro-magnetically actuated lever
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/043—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the gearing including a speed reducer
    • F02N15/046—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the gearing including a speed reducer of the planetary type

Definitions

  • a starter 10 comprises an electric motor 11 having a yoke 15, a stator 12 and a rotor 13 mounted coaxially, the stator 12 surrounding the rotor 13, which is mounted on a rotating shaft 14.
  • the stator 12 is housed inside the cylinder head 15, which is secured to the support 16 of the starter, intended to be fixed on a fixed part of the motor vehicle.
  • the rotor 13 comprises a rotor winding in connection with a manifold 17 secured to the shaft 14 of the electric motor 11.
  • the starter 10 also comprises an electromagnetic contactor 18 extending parallel to the electric motor 11 by being implanted radially above it.
  • the switch 18 is equipped with an excitation coil B, a movable contact 27 carried by a control rod (not referenced) and terminals 19, 20 of power supply.
  • the terminals 19, 20 are shaped to each form a fixed contact inside the insulating cover 21.
  • One of the terminals 19 is intended to be connected to the positive terminal of the battery, the other 20 is connected via a cable 22 to the brush holder 17 'associated with the collector 17, here of the frontal type or Radial variant of the axial type.
  • a bolt closure member 15 bearing a rear bearing for the shaft 14 as described in the document FR A 2,796,990 .
  • the contactor 18 also comprises a movable core 23, a fixed core 24, a coil support (not referenced) surrounding a guide sleeve (not referenced) of the movable core 23 and a tank (not referenced) for housing the coil B
  • This tank is assembled to the cover 21, here by crimping.
  • the coil B and its support, as well as a portion of the fixed core 24 and the guide sleeve have been partially removed.
  • the mobile core 23 is attracted by magnetic attraction towards the fixed core 24 to simultaneously cause the displacement, via the control rod, of the movable contact 27 towards the fixed contacts of the contactor 18 and actuating a control means 25 of the launcher 26 to control the movement thereof between a rear rest position ( figure 1 ) and a forward meshing position with a crown start gear 300 connected in rotation, possibly elastically, with the flywheel of the combustion engine of the motor vehicle.
  • the control means 25 consists of a control lever 25.
  • a return spring 42 resting on the tank and on a collar integral with the movable core, is mounted around the movable core 23 to bias it towards the rear rest position.
  • a spring 41 said spring teeth against teeth, is housed inside the core 23, and cooperates with the upper end of the lever 25 connected to the movable core 23 via a rod 43 connected to an axis 44.
  • This spring 41 acts between the bottom of its housing belonging to the core 23 and an end shoulder belonging to the rod 43, whose other end cooperates with the upper end of the lever 25 via the axis 44.
  • the electric motor 11 When the movable contact 27 comes into engagement with the fixed contacts of the terminals 19, 20 of the contactor 18, the electric motor 11 is electrically powered via the terminals 19, 20, so that the shaft 14 rotates, and drives the output 28, which is mounted in a bearing 29 before the support 16.
  • the front end of the shaft 14, opposite the collector 17, is configured to form a sun gear belonging to an epicyclic gear train constituting a gearbox
  • the gear train comprises a gears gear, which is interposed between the output shaft 28 and the aligned shaft 14 of the electric motor 11. This gear has a fixed gear ring internally toothed to engage the sun gear (not referenced) of the gear unit 30.
  • a bearing intervenes radially between the front end of the shaft 14 and the rear end of the shaft 28 with a blind hole for receiving the bearing.
  • the control lever 25, here in the form of a fork, is coupled by its upper part to the movable core 23 via the rod 43 and the spring 41, and comprises in its intermediate part a pivot axis 31 for its pivotal mounting in the starter.
  • the lower part of the fork-shaped lever 25 is mounted in an annular groove 133 of the driver 33 and has profiled fingers or pads for action on the flanks of the driver's throat.
  • the axis 31 here comprises two sections extending from opposite faces of the body of the lever 25, here made of plastic, being advantageously molded with the lever 25.
  • These sections are pivotally mounted for example in a two-piece bearing having a first portion connected to the support 16 advantageously being molded therewith and a second portion formed vis-à-vis forming a wedge between the actuator 18, specifically the tank thereof, and the cylinder head 15 as written in the document FR A 2,699,605 filed on 23/12/1992 .
  • the wedge which carries two axial wings with holes for mounting the sections of the axis 31, the lever being interposed between the two wings, one of which is visible at 131 to the figure 2 .
  • the fixed ring gear of the gearbox comprises an extension shaped to provide a function of articulation of the lever 25.
  • the extension consists of two radially projecting lugs and shaped to receive the sections of the axle 31.
  • a fixed base plate interposed between the support 16 and the cylinder head 15 as described in the document FR A 2,725,758 . This is the base plate which then carries a hinge support for the axis 31.
  • the lever is pivotally mounted on a fixed hinge support 131 of the starter in favor of an axis integral with one of the lever elements - fixed hinge support knowing that one can reverse the structures.
  • the launcher 26 is slidably mounted on the output shaft 28, and comprises a drive pinion 32, a driver 33 actuated by the fork of the pivoting control lever 25, and a free wheel 34 interposed axially between the driver 33 and the gear wheel 32.
  • the driver 33 is internally provided with helical splines in complementary engagement with external helical teeth 36 carried by the output shaft 28.
  • the launcher 26 is thus animated by a helical movement when it is moved. by the lever 25 in the direction of a fixed stop 35 fixed to the shaft 28 to come into position before meshing, through its pinion 32, in engagement with the ring gear 300 of the combustion engine of the motor vehicle.
  • the freewheeling starter 26 is equipped with a friction clutch, here frustoconical, for coupling the pinion 32 to the driver 33.
  • a friction clutch is of the type described in the document FR-A-2,826,696 ( WO 03/002870 ). It comprises two concave and convex complementary surfaces, for example frustoconical, cooperating by friction and respectively integral with the pinion 32 and the driver 33 for the transmission of the starting torque.
  • FR-A-2,826,696 especially on pages 13 and 14 of this one.
  • the clutch is locked in an engaged position when the electric motor 11 of the starter drives the starting ring gear of the internal combustion engine during starting (driving phase), and is released automatically at the end of starting when the ring gear drives.
  • the pinion 32 at a speed of rotation greater than that of the driver 33 (freewheel phase).
  • the pinion 32 and the driver 33 of the launcher 26 each have a central bore for the passage of the output shaft 28.
  • the pinion 32 of the launcher 26 is secured to a coupling piece of the pinion 32 to the coach 33.
  • This coupling piece is provided at its outer periphery with a first concave friction surface 37, here of frustoconical shape.
  • the friction surface 37 belongs to the inner periphery of a skirt of the coupling piece secured here to the pinion 26.
  • the lining 37 is attached.
  • the driver 33 is equipped at its inner periphery with driving spiral splines 38 engaged with the complementary teeth 36 formed at the outer periphery of the output shaft 28.
  • the driver 33 is also equipped externally with a groove. receiving 133 of the fork of the control lever 25, and in front of a friction pad or friction of convex shape, here of frustoconical shape.
  • This lining 39 is based on thermosetting plastic or thermoplastic, advantageously loaded, to obtain the desired coefficient of friction with low wear.
  • the lining 39 is anchored in an annular housing of the driver 33, and has at its periphery a second convex friction surface 40 cooperating in a complementary manner and coaxial with the first friction surface 37 to form a frustoconical friction clutch constituting a connection.
  • freewheel mechanism here disengageable, between the pinion 32 and the driver 33.
  • the friction surfaces are shaped to form a semi-spherical friction clutch.
  • a cover (not referenced) is crimped on a projection of the coupling piece and intervenes axially between the gasket 39 and the coupling piece.
  • the coupling piece is integral with the driver so that the surface 37 belongs to the driver and the surface 39 to the pinion.
  • a first disadvantage of such a solution is that, depending on the geometrical dispersion of the starter parts, the actuating force exerted by the lever 25 on the driver 33 during the excitation of the contactor 18 would be very high, causing therefore, an increase in the mechanical pressure of the liner 39 on the first friction surface 37. This high contact pressure in the friction clutch would cause premature wear of the friction clutch, with formation in more than one embodiment. significant residual drag torque that could degrade the freewheel function of the launcher 26.
  • a second disadvantage of this solution with negative clearance is the mechanical shock to be received by the stop 35 at each docking of the pinion 32 in the training phase.
  • an elastic washer with axial action can be mounted compressed axially inside the freewheel, this washer is then interposed between a radial front shoulder of the friction lining, integral in this case with the driver, and the inner face of the aforesaid hood crimped on the coupling piece, so as to elastically solicit friction surfaces in contact with each other. This results in a predetermined axial force which applies the friction surfaces against each other.
  • the spring washer can also be replaced by a helical compression spring or belong to the hood.
  • Such a washer in general such an elastic device for initiating the self-locking of the freewheel by friction is described in the documents FR A 2,826,696 ( WO 03/002870 ) and FR A 2,772,433 ( US A 6,237,432 ).
  • the object of the invention is to provide a starter equipped with a freewheeling launcher that overcomes the aforementioned drawbacks, and reliably initiates internal self-locking of the launcher in training phase.
  • Another object of the invention is to improve the freewheeling operation of the launcher.
  • Another object of the invention is to increase the life of the starter.
  • the starter according to the invention of the type in which the coupling piece is integral with one of the pinion-drive elements is characterized in that the elastic device comprises at least one priming spring integrated in the launcher between the piece of coupling and the other of the gear-pinion elements, said second element, so as to move the two friction surfaces away from each other in the rest position of the launcher, while creating a friction-resistant torque to initiate said self-locking of the freewheel.
  • the presence of the priming spring causes an axial or radial action to obtain a drag torque friction between the driver and the pinion, while the friction surfaces are spaced apart at rest, the rest position of the friction clutch corresponding to the rest position of the launcher.
  • This drag torque is sufficient to precisely initiate self-locking of the launcher during the training phase, but remains relatively low so as not to significantly decrease the speed differential in freewheeling phase and not to obliterate the action of the spring teeth against teeth.
  • the priming spring makes it possible to reduce the contact pressure between the friction surfaces and to detach the friction surfaces relative to one another because it is arranged in the launcher so as to move the drive away from the pinion, which reduces wear and improve freewheel operation.
  • the priming spring has a filter function because it also dampens vibrations and especially shocks when the friction surfaces come into contact with each other. The matting phenomena of the friction surfaces are therefore reduced.
  • the friction surfaces of the free wheel are thus provided in all phases so that the life of the starter is increased.
  • the friction clutch of the freewheel is of frustoconical shape
  • greater latitude is provided for modifying the angle of the friction surfaces because the priming spring is arranged in the launcher so as to move the coach away from the pinion.
  • the angle of the friction surfaces can be increased or decreased.
  • the friction clutch is semi-spherical shape also has greater latitude to change the radius of curvature.
  • the stiffness of the priming spring can be determined with less precision as this spring has an action that time to move the driver away from the pinion and release the friction surfaces.
  • the coupling piece is integral with the pinion and the priming spring acts between the rear face of the bottom of the coupling piece and the front face of the coach or between the skirt of the piece of equipment. hitch and coach.
  • the coupling piece is integral with the driver and the priming spring acts between the front face of the bottom of the coupling piece and the rear face of the pinion or between the skirt of the coupling piece and the pinion.
  • priming springs can be provided. These springs are mounted for example in series or intervene staggered.
  • the launcher 26 comprises a drive gear 32, a driver 33, adapted to be actuated by the fork of the control lever 25 of the figure 1 , and a freewheel 34 formed by a friction clutch, here of frustoconical shape alternatively semi-shery form.
  • the latter is provided with two friction surfaces 37, 40 of annular and complementary shape. These surfaces are concave and convex.
  • the first friction surface 37 is carried internally by the frustoconical skirt 48 of a bell-shaped coupling piece 45 directed towards the driver 33.
  • the skirt 48 is delimited axially by a bottom 46 integral with the pinion 32 and a stop 47 back integral with the coupling piece 45 at the free end of larger diameter.
  • the skirt 48 and the coupling piece 45 are parts of revolution.
  • the bottom 46 extends radially between the skirt 48 and the pinion 32, and has a planar and annular bearing surface 49 arranged opposite the front face 50 of the driver 33 and the lining 39.
  • the stop 47 is formed by an annular rim radially flanking the lining 39.
  • the bottom 46 is attached by welding, for example of the laser type, to the pinion 32 having for this purpose a non-referenced tubular extension.
  • the pinion 32 and the coupling piece constitute a single piece made of one and the same material or bi material, for example bi-material sintering, as in the case of figures 1 and 2 or in the figure 3 of the document WO 03/002870 .
  • the bottom 46 is inclined as visible also to the figure 3 of this document WO 03/002870 .
  • the stop 47 consists of an embodiment in a circlip as in the figure 8 of the document WO 03/002870 .
  • the skirt 48 internally bears the friction surface 37, formed by the inner periphery of the skirt in the Figures 5 to 8 , and has at its free end a housing, such as a groove, for mounting a circlip to cooperate with the driver and make captive parts of the launcher which is thus manipulable and transportable.
  • this circlip is replaced by a rim or tongues of radial orientation obtained (s) by folding inward of the free end of the skirt.
  • the abutment is constituted by a cover crimped on the free end of the skirt, which has a protuberance as in figures 1 and 2 .
  • the free end of the skirt has blind mortises, while the abutment has radial tenons at its outer periphery engaging complementary manner in the grooves of axial orientation. Then we locally crush the side edges of the mortises in contact with the tenons in support of the fonts mortises.
  • the abutment is molded with the skirt of the coupling piece. An abutment is therefore secured to the annular coupling piece, which has on the opposite side to the abutment a bottom. All that has just been said also applies to the embodiments of the figures 6 and 7 .
  • the second friction surface 40 in the Figures 5 to 8 , is located on the liner 39 at the outer periphery of the driver 33, and extends parallel to the first friction surface 37, but on a shorter axial distance.
  • the friction surfaces 37, 40 are complementary.
  • the lining 39 is secured to the driver by being for example fixed by gluing in an annular housing thereof or alternatively fixed by the overmolding technique on the driver advantageously plastic so that the liner 40 is anchored in the coach.
  • the size of the abutment 47 is defined in such a way that it can cooperate with the rear face of the lining 39 (see FIG. Figures 5 to 7 ).
  • the blocking of the freewheeling caster 34 by friction is obtained by the combined action of the splines of the driver 33, driven by the electric motor via the teeth of the output shaft, and the cone friction after engagement of the two friction surfaces 37, 40.
  • the electric motor 11 drives the pinion 32 and the ring gear for starting the internal combustion engine.
  • the clutch is released in the freewheeling phase when the combustion engine drives the pinion 32 at a speed of rotation greater than that of the driver 33.
  • the driver 33 has an annular groove 133 for receiving the fork-shaped lower portion of the lever 25 of the figure 1 .
  • the invention proposes to initiate the internal self-locking of the freewheel 34 in the driving phase and to separate the friction surfaces 37,40 in freewheeling phase.
  • the initiation of the self-locking is provided by an elastic device 51 internal to the free wheel 34, shaped according to a friction clutch, and intended to generate a low intensity drag force and to release the friction surfaces in the wheel phase free.
  • this ignition device 51 generates a frictional drag torque between the driver 33 and the pinion 32, said torque being sufficient to initiate the self-locking of the launcher 26 in training phase, but relatively low not to significantly reduce the speed differential in the freewheel phase.
  • the initiation of the self-locking of the friction clutch is provided by an elastic device 51 integrated in the launcher, with formation of a reaction between one of the driver elements 33-pinion 32 and the piece coupling 45 secured to the other of the 32-coach 33 gear elements.
  • the reaction is of the axial type in the Figures 5 and 6 , and radial in the Figures 7 and 8 .
  • the axial action exerted by the priming device 51 within the launcher is less than the axial action exerted by the spring teeth against teeth (see figure 2 ) at coach level 33.
  • the coupling piece 45 is integral with the pinion being in one piece or attached to fixing thereon in the aforementioned manner so that the elastic device 51 is arranged axially between the rear face of the pinion 32 and the front face of coach 33 in the Figures 5 and 6 and radially between the inner periphery of the coupling piece and the outer periphery of the driver in the Figures 7 and 8 .
  • the elastic device 51 comprises a spring R1 constituted for example by an elastically deformable washer in the axial direction, such as a washer Belleville type.
  • the spring R1 is interposed between the rear bearing surface 49 of the bottom 46 of the coupling piece 45, and the front face 50 of the driver 33 so as to move the two friction surfaces 37, 40 away from each other. the other, unlike the document FR-A-2772433 and WO 03/002870 where the self-priming is effected by contact of the two complementary friction surfaces of concave and convex shape.
  • the spring 51 is supported at its outer periphery on the front face of the lining 39 belonging to the front face 50 of the driver, while at its inner periphery it bears on the surface 49 of the bottom 46.
  • the rear face of the lining 39 of the friction clutch is held against the stop 47 of the skirt 48, to generate a residual torque by friction between the coupling piece 45 and the coach 33.
  • the presence of this spring R1 initiation causes a friction drag torque between the driver 33 and the pinion 32, said torque being sufficient to initiate self-locking of the launcher 26 in training phase, but relatively low so as not to significantly decrease the differential speed in freewheeling phase.
  • This freewheeling phase is carried out according to a first step in which the friction surfaces are in contact with reduction of the contact pressure and a second step in which the friction surfaces are detached from one another under the action of the priming spring.
  • the spring R1 is replaced by a coil spring R2 compression wedged between the front face 50 of the driver 33 and a shoulder of the bottom 46.
  • the effect of this spring R2 is identical to that of the figure 5 , and this results in a plating force of the lining 39 against the abutment 47 of the skirt 48 with separation of the two friction surfaces 37, 40.
  • the elastic device 51 comprises a spring R3 radial action, formed by an annular and corrugated elastic blade.
  • the blade is interposed between a cylindrical extension 52 of the skirt 48, and the peripheral surface of the lining 39.
  • the friction surfaces 37, 40 remain spaced in the rest position, and the permanent friction effect of the spring R3 against the workpiece coupling 45 and the lining 39, allows the clutch to self-priming following the formation of a resistant torque between the pinion 32 and the coach 33. This effort depends on the applications and is chosen not to disturb unduly the movement of the coach relative to the pinion.
  • the frustoconical skirt 48 is extended at its free end by a generally U-shaped annular portion, the axially oriented annular bottom of which is constituted by the cylindrical extension 52 forming a spacer between two branches. radial orientation directed towards the launcher axis coinciding with the axis of the output shaft of the figure 1 .
  • One of its branches is a connection portion of the spacer 52 to the skirt 48, while the other branch, of greater length, constitutes the stop 47 adapted to cooperate with the rear face of the lining 39.
  • the aforesaid U-shaped portion constitutes a groove-like housing for the corrugated spring R3.
  • the annular lining 39 has at its outer periphery a first portion constituting the friction surface 40.
  • This portion is extended by a second portion 140 of cylindrical shape, that is to say a second annular portion of orientation axial.
  • This portion 140 is a bearing portion for the corrugations of the spring R3 as visible in FIG. figure 8 .
  • This spring R3 therefore intervenes between the inner periphery of the spacer 56 belonging to the inner periphery of the coupling piece and the portion 140 belonging to the outer periphery of the driver 33.
  • the resulting force at the launcher, more precisely at the groove 133, and produced by the elastic device according to the invention is lower in all embodiments than that which would produce the spring teeth against teeth. of the figure 2 .
  • the spring R1 of the figure 5 can be replaced by an axially corrugated washer. Alternatively it is an elastomer washer. Solutions with R1 washers are more compact axially than those of the figure 6 .
  • the R2 spring of the figure 6 allows to obtain a longer elastic race and is alternatively variable pitch to obtain a better progressivity.
  • the driver 33 may also be provided with a shoulder for centering the spring R2.
  • the bottom 46 is alternatively provided with a centering shoulder of the inner periphery of the washer R2.
  • the spring R3 is alternatively in a ring for example in contact with the extension 52 connecting to the skirt 48, while the abutment is attached to the spacer to be able to mount the ring of the spring R3.
  • This ring of the spring R3 has at its inner periphery lugs distributed circumferentially for contact with the portion 140.
  • the free end of the tabs is advantageously rounded.
  • the tabs are advantageously inclined.
  • the ring of the spring R3 is in an embodiment fixed, for example by gluing, on the extension 52 so that the presence of a groove is not necessary.
  • the spring R3 is supported in all cases on the extension 52 and the portion 140.
  • the initiation device 51 comprises, in a variant, several springs connected in series, for example two Belleville washers with mounting of a separating washer between the two Belleville washers.
  • the springs are delayed and staggered action, a first spring intervening first and then two springs.
  • the parts of the launcher 26 can also be reversed.
  • the skirt with the friction surface 37 is alternatively integral with the driver 33, and the second convex friction surface 40 is in this case secured to the pinion 32.
  • the springs R1 and R2 in this case act between the front face of the bottom of the coupling piece constituting the front face of the driver and the rear face of the pinion arranged opposite the front face of the bottom of the coupling piece. .
  • the spring R3 intervenes between the inner periphery of the coupling piece and the outer periphery of the pinion, the portion 140 is then close to the pinion.
  • the springs R1 and R2 intervene between the front face of the driver and the rear face of the pinion 32 arranged facing the front face of the driver, while the spring R3 intervenes radially between the inner periphery. of the skirt and the pinion-coach element which is not integral with the skirt.
  • the skirt with its inclined bottom or radial orientation can be in one piece or be reported on the element which it is secured.
  • the invention also applies to a starter without speed reducer 30 between the electric motor 11 and the launcher 26.
  • the shaft 14 is also the output shaft.
  • the collector 17 of the electric motor 11 can be indifferently of the radial or axial type.
  • the driver 33 and the pinion 32 may therefore be metal or sintered material.
  • the driver 33 and the lever 25 are preferably made of plastic to easily obtain by molding the desired shape for these parts.
  • One of the flanks of the groove 133, the one closest to the free wheel 34, may be coated with a metal part, for example by overmolding.
  • the other side, the furthest from the freewheel 34, is advantageously metallic while being attached to the driver, for example by overmolding.
  • This flank consists for example of a metal washer. In this case we always get a metal contact on plastic material.
  • the switch 18 is alternatively remote and extends for example perpendicular to the shaft 14 of the motor 11 in the vicinity of the rear bearing of the shaft 14 as described in the document FR A 2,843,427 .
  • the connecting rod to the movable core which acts on the upper part of the lever 25, is connected to the movable core by a second rod acting on the spring teeth against teeth and a return mechanism intervening between the two rods.
  • the rod 43 thus acts directly or indirectly on the spring teeth against teeth.
  • the pinion 32 is alternatively of the outgoing type with respect to the support 16 as described in the document FR A 2,745,855 .
  • the lever 25 carries an axis 31 for its pivotal mounting on a fixed hinge support 131 of the starter 25 ( figure 2 ).
  • it is the fixed hinge support which carries the axis, the lever being perforated for passage of the axis.
  • the contactor is mounted coaxially with respect to the electric motor so that the launcher acts as a mobile core as described in the document FR A 2,841,941 to which we will refer.
  • the control means for moving the launcher is not necessarily a lever.
  • At least one coating is provided for the support 49, 50, 52, 140 of the priming spring.
  • the front face 50 of the driver 33 preferably plastic, is constituted by a metal washer integral with the driver. It may be the same with regard to the rear face 49 of the coupling piece.
  • the bearing portion 140 is a metal variant.
  • the coating is an anti-noise material.
  • the friction surface 40 may be formed directly at the outer periphery of the driver, while the friction surface 37 may belong to a friction lining attached to the inner periphery of the skirt of the coupling piece.
  • the skirt 48 can therefore be of cylindrical shape.
  • the starter is a starter for a combustion engine, also called a heat engine, of a motor vehicle, such as a light or heavy vehicle, or a boat.
  • a combustion engine also called a heat engine
  • the invention applies, of course, in the case where the combustion engine is stationary and serves for example to drive at least one power take-off.
  • the combustion engine can be stationary and drive, advantageously via a clutch, a motion transmission shaft. All combinations are possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Operated Clutches (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Claims (15)

  1. Anlasser für einen Verbrennungsmotor, insbesondere eines Kraftfahrzeugs, der mit einem mit Schwungrad mit Anlasserzahnkranz (300) versehen ist, der eine mit Zahnungen (36) versehene Abtriebswelle (28), einen Starter (26), ein zum Starter (26) gehörendes Ritzel (32), einen Elektromotor (11) enthält, um die Abtriebswelle in Drehung zu versetzen, die mechanisch mit dem Starter (26) gekoppelt ist, der auf die Abtriebswelle (28) zwischen einer hinteren Ruhestellung und einer vorderen Eingriffsstellung des Ritzels (32) mit dem Starterzahnkranz des Schwungrads des Verbrennungsmotors axial gleitend montiert ist, wobei der Starter (26) enthält:
    - einen Mitnehmer (33), der von einer Steuereinrichtung zwischen der vorderen und der hinteren Stellung gesteuert wird, und mit Antriebsverzahnungen (38) ausgestattet ist, die mit den komplementären Zahnungen (36) der Abtriebswelle (28) in Eingriff stehen,
    - ein Bauteil zur Kupplung des Ritzels (32) mit dem Mitnehmer (33) über eine mechanische Freilaufradverbindung (34), die gemäß einer Reibungskupplung ausgebildet ist, das eine erste Reibungsfläche (37), die von einem der Elemente Ritzel (32) - Mitnehmer (33) getragen wird, und eine zweite Reibungsfläche (40) aufweist, die fest mit dem anderen der Elemente Mitnehmer (33) - Ritzel (32) verbunden ist,
    - und eine elastische Vorrichtung (51) zum Auslösen der Selbsthemmung des Freilaufrads (34),
    - wobei das Kupplungsbauteil fest mit einem der Elemente Ritzel (32) - Mitnehmer (33), erstes Element genannt, verbunden ist,
    dadurch gekennzeichnet, dass die elastische Vorrichtung (51) mindestens eine Auslösefeder (R1, R2, R3), die in den Starter (26) zwischen dem Kupplungsbauteil (45) und dem anderen der Elemente Mitnehmer (33) - Ritzel (32), zweites Element genannt, integriert ist, das nicht fest mit dem Kupplungsbauteil (45) verbunden ist, um die zwei Reibungsflächen (37, 40) in der Ruhestellung des Starters voneinander zu entfernen und dabei ein Reibungswiderstandsmoment zu erzeugen, um die Selbsthemmung des Freilaufrads (34) auszulösen.
  2. Anlasser nach Anspruch 1, dadurch gekennzeichnet, dass er einen fest mit dem Kupplungsbauteil (45) verbundenen Anschlag (47) aufweist, dass das Kupplungsbauteil (45) auf der dem Anschlag (47) entgegengesetzten Seite einen fest mit dem Ritzel (32) verbundenen Boden (46) aufweist, während der Mitnehmer (33) eine Vorderseite (50) gegenüber dem Boden (46) des Kupplungsbauteils (45) hat, und dass die Auslösefeder (R1, R2) zwischen dem Boden (46) des Kupplungsbauteils (45) und der Vorderseite (50) des Mitnehmers (33) angeordnet ist, um eine axiale Wirkung auszuüben, die dahin tendiert, den Mitnehmer (33) gegen den Anschlag (47) anzulegen.
  3. Anlasser nach Anspruch 1, dadurch gekennzeichnet, dass er einen fest mit dem Kupplungsbauteil (45) verbundenen Anschlag (47) aufweist, dass das Kupplungsbauteil (45) auf der dem Anschlag (47) entgegengesetzten Seite einen fest mit dem Mitnehmer (33) verbundenen Boden (46) aufweist, während das Ritzel (32) eine Rückseite gegenüber dem Boden (46) des Mitnehmers (33) hat, und dass die Auslösefeder (R1, R2) zwischen dem Boden (46) des Kupplungsbauteils (45) und der Rückseite des Ritzels (32) angeordnet ist, um eine axiale Wirkung auszuüben, die dahin tendiert, das Ritzel (32) gegen den Anschlag (47) anzulegen.
  4. Anlasser nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass der Anschlag (47) von einer fest mit dem Kupplungsbauteil (45) verbundenen radialen Randleiste geformt wird.
  5. Anlasser nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die Auslösefeder (R1) eine elastisch in axialer Richtung verformbare Scheibe enthält.
  6. Anlasser nach Anspruch 5, dadurch gekennzeichnet, dass die Auslösefeder ein Belleville-Dichtungsring ist.
  7. Anlasser nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die Auslösefeder (R2) von einer schraubenförmigen Druckfeder geformt wird.
  8. Anlasser nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, dass der Boden des Kupplungsbauteils und/oder das zweite Element Mitnehmer (33) - Ritzel (32), das nicht fest mit dem Kupplungsbauteil (45) verbunden ist, eine Schulter hat, um die Auslösefeder (R1, R2) zu positionieren.
  9. Anlasser nach Anspruch 1, dadurch gekennzeichnet, dass die Auslösefeder (R3) radial wirkt und zwischen dem inneren Umfang des Kupplungsbauteils (45) und dem äußeren Umfang des zweiten Elements Mitnehmer (33) - Ritzel (32), das nicht fest mit dem Kupplungsbauteil (45) verbunden ist, angeordnet ist, um eine radiale Reibungswirkung zwischen dem Mitnehmer (33) und dem Ritzel (32) zu erzeugen.
  10. Anlasser nach Anspruch 9, dadurch gekennzeichnet, dass die Auslösefeder (R3) eine gewellte elastische Lamelle ist.
  11. Anlasser nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass das Kupplungsbauteil (45) einen fest mit dem ersten Element Ritzel (32)-Mitnehmer (33) verbundenen Boden (46) und eine mit dem Boden (46) verbundene Schürze (48) hat, und dass die Auslösefeder (R3) auf einer zylindrischen Erweiterung (52), die die Schürze (48) verlängert, und auf einem zylindrischen Teil (140) aufliegt, das zum zweiten Element Mitnehmer (33) - Ritzel (32) gehört.
  12. Anlasser nach Anspruch 11, dadurch gekennzeichnet, dass mindestens eines der Elemente Erweiterung (52) - zylindrischer Teil (140) den Boden einer Rille bildet.
  13. Anlasser nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass die Reibungskupplung eine Kegelstumpfform hat, dass das Kupplungsbauteil (45) einen fest mit dem ersten Element Ritzel (32) - Mitnehmer (33) verbundenen Boden (46) und eine mit dem Boden (46) verbundene kegelstumpfförmige Schürze (48) hat, und dass das Kupplungsbauteil (45) auf der seinem Boden (46) entgegengesetzten Seite einen Anschlag (47) trägt.
  14. Anlasser nach Anspruch 13, dadurch gekennzeichnet, dass die zweite Reibungsfläche (40) zu einem Reibungsbelag (39) gehört.
  15. Anlasser nach Anspruch 14 in Kombination mit Anspruch 11, dadurch gekennzeichnet, dass der zylindrische Teil (140) zum Reibungsbelag (39) gehört.
EP05775279.2A 2004-06-09 2005-06-06 Anlassermotor, insbesondere für ein kraftfahrzeug, ausgestattet mit einem freilaufendem reibanlasser Not-in-force EP1769154B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0406235A FR2871532B1 (fr) 2004-06-09 2004-06-09 Demarreur, notamment de vehicule automobile, equipe d'un lanceur a roue libre par friction
PCT/FR2005/001373 WO2006003285A1 (fr) 2004-06-09 2005-06-06 Demarreur, notamment de vehicule automobile, equipe d’un lanceur a roue libre par friction

Publications (2)

Publication Number Publication Date
EP1769154A1 EP1769154A1 (de) 2007-04-04
EP1769154B1 true EP1769154B1 (de) 2013-08-28

Family

ID=34946338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05775279.2A Not-in-force EP1769154B1 (de) 2004-06-09 2005-06-06 Anlassermotor, insbesondere für ein kraftfahrzeug, ausgestattet mit einem freilaufendem reibanlasser

Country Status (6)

Country Link
EP (1) EP1769154B1 (de)
CN (1) CN1965164B (de)
BR (1) BRPI0511159B8 (de)
FR (1) FR2871532B1 (de)
MX (1) MXPA06014224A (de)
WO (1) WO2006003285A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017030815A1 (en) * 2015-08-18 2017-02-23 Borgwarner Inc. Starter with disconnecting clutch

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010029260B4 (de) 2010-05-25 2022-01-05 Seg Automotive Germany Gmbh Starter für eine Brennkraftmaschine
FR2978501B1 (fr) * 2011-07-26 2016-03-18 Valeo Equip Electr Moteur Lanceur a friction pour engrenement avec une couronne de demarrage d'un moteur thermique et demarreur d'un moteur thermique comportant un tel lanceur
FR2978500B1 (fr) * 2011-07-26 2015-03-13 Valeo Equip Electr Moteur Ensemble mobile lanceur - levier de commande pour engrenement avec une couronne de demarrage d'un moteur thermique et demarreur d'un moteur thermique comportant un tel ensemble
FR2981412B1 (fr) * 2011-10-14 2017-04-14 Valeo Equip Electr Moteur Tete de demarreur et demarreur equipe d'une telle tete
FR2997457B1 (fr) * 2012-10-31 2014-11-07 Valeo Equip Electr Moteur Lanceur a friction pour engrenement avec une couronne de demarrage d'un moteur thermique et demarreur d'un moteur thermique correspondant
DE102013202460B4 (de) * 2013-02-15 2021-05-12 Seg Automotive Germany Gmbh Startvorrichtung für eine Brennkraftmaschine
FR3013396A1 (fr) * 2013-11-21 2015-05-22 Valeo Equip Electr Moteur Lanceur de demarreur de moteur thermique a couronne dentee de demarrage et demarreur comportant un tel lanceur
DE102013020327B4 (de) * 2013-12-05 2022-05-25 Borgwarner Inc. Starterfreilauf und Freilaufanordnung mit einem solchen Starterfreilauf
DE202020107199U1 (de) 2020-12-11 2022-03-15 Dana Belgium N.V. Kupplungsanordnung

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
FR2772433B1 (fr) * 1997-12-17 2000-02-04 Valeo Equip Electr Moteur Demarreur de vehicule automobile comportant un lanceur perfectionne
JP2001012336A (ja) * 1999-06-29 2001-01-16 Mitsuba Corp 一軸式のスタータ装置
CN2454559Y (zh) * 2001-02-14 2001-10-17 重庆川渝精工机械配件厂 摩托车脚踏起动机构
MXPA03001850A (es) * 2001-06-29 2003-06-04 Valeo Equip Electr Moteur MOTOR DE ARRANQUE PARA AUTOMOVIL CON PInON BENDIX PERFECCIONADO.
FR2838777B1 (fr) * 2002-02-28 2005-12-02 Valeo Equip Electr Moteur Demarreur electrique a butee d'amortissement pour le lanceur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017030815A1 (en) * 2015-08-18 2017-02-23 Borgwarner Inc. Starter with disconnecting clutch

Also Published As

Publication number Publication date
CN1965164B (zh) 2010-06-16
BRPI0511159A (pt) 2007-12-04
FR2871532A1 (fr) 2005-12-16
FR2871532B1 (fr) 2006-08-04
CN1965164A (zh) 2007-05-16
BRPI0511159B8 (pt) 2017-06-13
MXPA06014224A (es) 2007-03-12
EP1769154A1 (de) 2007-04-04
WO2006003285A1 (fr) 2006-01-12
BRPI0511159B1 (pt) 2017-05-30

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