WO2008072505A1 - ロックアップ装置およびそれを備えた流体式トルク伝達装置 - Google Patents
ロックアップ装置およびそれを備えた流体式トルク伝達装置 Download PDFInfo
- Publication number
- WO2008072505A1 WO2008072505A1 PCT/JP2007/073386 JP2007073386W WO2008072505A1 WO 2008072505 A1 WO2008072505 A1 WO 2008072505A1 JP 2007073386 W JP2007073386 W JP 2007073386W WO 2008072505 A1 WO2008072505 A1 WO 2008072505A1
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- WO
- WIPO (PCT)
- Prior art keywords
- piston
- front cover
- turbine
- inner peripheral
- axial direction
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0205—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type two chamber system, i.e. without a separated, closed chamber specially adapted for actuating a lock-up clutch
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
- F16H2045/0226—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means comprising two or more vibration dampers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
- F16H2045/0226—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means comprising two or more vibration dampers
- F16H2045/0231—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means comprising two or more vibration dampers arranged in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
- F16H2045/0247—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means having a turbine with hydrodynamic damping means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0273—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch
- F16H2045/0278—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch comprising only two co-acting friction surfaces
Definitions
- Lock-up device and fluid torque transmission device including the same
- the present invention relates to a lockup device for a fluid torque transmission device, and more particularly to a lockup device in which a front cover and a piston are connected.
- a torque converter is known as a fluid torque transmission device.
- the torque converter has three types of impellers (an impeller, a turbine, and a stator) inside, and transmits torque via the internal hydraulic oil.
- Such a torque converter is often provided with a lock-up device.
- the lockup device is disposed in a space between the turbine bin and the front cover in a fluid chamber formed by the turbine and the front cover, and mechanically connects the front cover and the turbine. This is a mechanism for transmitting torque directly from the front cover to the turbine.
- this lock-up device includes a disc-shaped piston that can be pressed against the front cover, a friction plate that is sandwiched between the piston and the front cover, a front cover and a turbine via the friction plate.
- the damper mechanism is capable of inertially connecting the shaft in the rotational direction, and the connecting mechanism for connecting the piston and the front cover.
- the damper mechanism includes a driven plate fixed to the turbine, a drive plate with which a friction plate is integrally rotatable and movable in an axial direction, and the drive plate and the driven plate are elastic in the rotational direction. And a torsion spring that is connected to each other.
- the coupling mechanism couples the piston to the front cover so as to be integrally rotatable and movable in the axial direction.
- the piston is supported by the turbine blade and the hub so as to be rotatable and movable in the axial direction (see, for example, Patent Document 1).
- the piston moves to the front cover side by hydraulic pressure, and the friction plate is held between the piston and the front cover.
- torque is transmitted from the front cover to the friction plate, and the torque is further transferred via the torsion spring.
- the torsion spring is compressed in the rotational direction between the drive plate and the driven plate, and absorbs and attenuates torsional vibration.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2001_500237
- An object of the present invention is to prevent wear of a member caused by movement of a piston in the axial direction and reduce friction loss in a lockup device of a fluid torque transmission device.
- a lockup device is a front cover to which torque is input, an impeller that is fixed to the front cover and forms a fluid chamber that is filled with a working fluid, and is disposed opposite the impeller. It is used for a fluid type torque transmission device including a turbine.
- the lockup device is disposed in a space between the front cover and the turbine, and mechanically connects the front cover and the turbine.
- the lockup device includes a piston, a piston coupling mechanism, a friction plate, a damper mechanism, and a force.
- the piston is provided so as to be rotatable with respect to the turbine and movable in the axial direction, and is movable in the axial direction according to the pressure of the working fluid.
- the piston coupling mechanism couples the piston to the front cover so that the piston can rotate integrally and move in the axial direction, and restricts the movement of the piston to the turbine side within a predetermined range.
- the friction plate is fixed by the piston moving toward the front cover. And is sandwiched between the axial direction of the front cover.
- the damper mechanism can inertially connect the front cover and the turbine in the rotational direction via a friction plate.
- a lockup device is the device according to the first invention, wherein the piston coupling mechanism includes a first member fixed to the front cover, a second member fixed to the piston, A regulating member that regulates movement of the second member relative to the first member toward the turbine side.
- a lockup device is the device according to the second aspect of the invention, wherein the first member and the second member have a portion that intersects in the axial direction.
- the restricting member is engaged with the intersecting portion.
- a lockup device is the device according to the third invention, wherein the first member includes a first annular portion fixed to the front cover, and extends radially inward from the first annular portion. A plurality of first inner peripheral teeth.
- the second member includes a second annular portion fixed to the turbine, and a plurality of second inner peripheral teeth extending radially inward from the second annular portion. The first and second inner peripheral teeth are meshed with each other in the rotational direction while intersecting the axial direction.
- a lockup device is the same as the device according to the fourth invention, and has a first tip portion in which the first inner peripheral teeth extend radially inward.
- the second inner peripheral tooth has a second tip portion that extends radially inward and is disposed closer to the front cover than the first tip portion.
- the restricting member is a ring member that is disposed between the first and second tip portions in the axial direction and whose outer diameter changes due to an external force.
- a lockup device relates to the device according to the fifth aspect of the invention, wherein the first inner peripheral tooth extends radially inward and extends in the axial direction. have.
- the second inner peripheral tooth is in mesh with the first intersection in the rotational direction.
- a lockup device is the same as the device according to the fifth or sixth invention, wherein the second inner peripheral tooth extends radially inward and extends in the axial direction. Has a second intersection The The first inner teeth rub against the second intersection!
- the lockup device according to the eighth invention is the device according to any one of the fourth to seventh! / Deviation inventions, wherein the first member has a plurality of members extending radially outward from the first annular portion. It also has a first outer tooth. The second member further has a plurality of second outer peripheral teeth extending radially outward from the second annular portion and engaging the first outer peripheral teeth in the rotational direction.
- a lockup device is the device according to any one of the second to eighth inventions, wherein the piston has an inner diameter larger than the inner diameter of the first member.
- a lockup device is the device according to any one of the first to ninth inventions, wherein the piston coupling mechanism connects the inner peripheral portion of the front cover and the inner peripheral portion of the piston. is doing.
- a fluid type torque transmission device is a device for transmitting torque from an engine to a transmission side, and includes a front cover to which torque is input, an impeller, and a turbine. And a lockup device according to any one of the first to tenth inventions.
- the impeller is fixed to the front cover and forms a fluid chamber filled with a working fluid.
- the turbine is disposed opposite the impeller.
- This fluid torque transmission device includes the lock-up device according to any one of the first to tenth inventions. For this reason, interference and abrasion with a piston and a damper part can be prevented.
- FIG. 1 Schematic diagram of longitudinal section of tonnelec converter
- FIG. Fig. 1 shows a schematic vertical cross-sectional view of torque converter 1.
- the torque converter 1 is a device for transmitting torque from an engine crankshaft (not shown) to an input shaft (not shown) of a transmission.
- An engine (not shown) is arranged on the left side of FIG. 1, and a transmission (not shown) is arranged on the right side of FIG.
- Line O— O shown in FIG. 1 indicates the rotation shaft of torque converter 1. It is.
- the torque converter 1 mainly includes a front force node 11 to which an engine-side member (not shown) is coupled, three types of impellers (an impeller 21, a turbine 22, a stator 23), a lock And an up device 7.
- a fluid chamber is formed by the front cover 11 and the impeller 21.
- the fluid chamber is filled with hydraulic oil.
- the fluid chamber is divided into a torus-shaped fluid working chamber 6 surrounded by an impeller 21, a turbine 22 and a stator 23, and an annular space 8 in which a lockup device 7 force S is arranged.
- an outer peripheral cylindrical portion 11a extending toward the transmission side is formed on the outer peripheral portion of the front cover 11.
- the outer peripheral edge of the impeller shell 26 of the impeller 21 is fixed to the tip of the outer peripheral cylindrical portion 11a by welding or the like.
- the front cover 11 and the impeller 21 form a fluid chamber filled with hydraulic oil.
- the impeller 21 mainly includes an impeller shell 26, a plurality of impeller blades 27 fixed to the inside thereof, and an impeller hub 28 fixed to an inner peripheral portion of the impeller shell 26 by welding or the like. And power is also configured!
- the turbine 22 is disposed in the fluid chamber so as to face the impeller 21 in the axial direction.
- the turbine bin 22 is mainly composed of a turbine shell 30, a plurality of turbine blades 31 fixed to the surface of the impeller 21 side, and a turbine hub 32 fixed to the inner peripheral edge of the turbine shell 30.
- the turbine hub 32 includes a flange portion 32a and a boss portion 32b.
- the turbine shell 30 and the turbine hub 32 are fixed to the flange portion 32 a of the turbine hub 32 by a plurality of rivets 33 together with the driven plate 73 of the damper mechanism 9.
- a spline that engages with an input shaft (not shown) is formed on the inner peripheral surface of the boss portion 32b of the turbine hub 32.
- the turbine knob 32 rotates integrally with the input shaft.
- the stator 23 is installed between the inner peripheral portion of the impeller 21 and the inner peripheral portion of the turbine 22, and is a machine for rectifying the flow of hydraulic oil returning from the turbine 22 to the impeller 21. It is a structure.
- the stator 23 mainly includes an annular stator carrier 35, a plurality of stator blades 36 provided on the outer peripheral surface of the stator carrier 35, and a force.
- the stator carrier 35 is supported by a cylindrical fixed shaft 39 via a one-way clutch 37.
- Solid The constant shaft 39 extends between the outer peripheral surface of the input shaft and the inner peripheral surface of the impeller hub 28 toward the axial transmission side.
- a first thrust bearing 41 is disposed between the front cover 11 and the boss portion 32 b and receives a thrust force generated by the rotation of the turbine 22.
- a second thrust bearing 42 is disposed between the inner peripheral portion of the flange portion 32a, the stator 23, and the inner peripheral portion (specifically, the retainer 38).
- a third thrust bearing 43 is arranged between the stator carrier 35 and the impeller hub 28 in the axial direction.
- the lockup device 7 is disposed in a space 8 between the turbine 22 and the front cover 11, and is a mechanism for mechanically connecting the two as required.
- the mouth-up device 7 has a clutch function and a damper function, and is mainly composed of a clutch plate 71 as a friction plate, a damper mechanism 9, a piston 75, and a piston coupling mechanism 76. .
- the clutch plate 71 is an annular member having a friction member 71a, and is engaged with the outer periphery of the drive plate 72 so as to be integrally rotatable and movable in the axial direction.
- the portion where the friction member 71 a is provided is disposed between the front cover 11 and the piston 75 in the axial direction.
- the damper mechanism 9 can inertially connect the front cover 11 and the turbine 22 via the clutch plate 71 in the rotational direction.
- the damper mechanism 9 is mainly composed of a drive plate 72, a dripper, a pre-plate 73, a first torsion spring 74a, and a second torsion spring 74b.
- the drive plate 72 is composed of two plate members 72a and 72b, and holds the first torsion spring 74a and the second torsion spring 74b.
- the driven plate 73 is disposed between the axial directions of the plate members 72a and 72b, and is rotatable with respect to the drive plate 72 within a certain range.
- the drive plate 72 and the driven plate 73 are inertialy coupled in the rotational direction by a first spring 74a and a second spring 74b.
- the first torsion spring 74a and the second torsion spring 74b are arranged in parallel.
- the piston 75 is disposed between the front cover 11 and the damper mechanism 9 in the axial direction, and is supported by the turbine knob 32 so as to be rotatable and movable in the axial direction.
- the piston 75 can move in the axial direction in accordance with the pressure of the working fluid, and can press and release the clutch plate 71 against the front cover 11.
- the piston 75 is coupled to the front cover 11 by a piston coupling mechanism 76 disposed on the inner peripheral side of the damper mechanism 9.
- FIGS. 2 is a partial cross-sectional view of the piston coupling mechanism 76
- FIG. 3 is a plan view and cross-sectional view of the first plate 77
- FIG. 4 is a plan view and cross-sectional view of the second plate 78
- FIG. A cross-sectional view is shown.
- the piston coupling mechanism 76 couples the piston 75 to the front cover 11 so as to be integrally rotatable and movable in the axial direction.
- the piston coupling mechanism 76 is disposed on the inner peripheral side of the damper mechanism 9 and connects the inner peripheral part of the piston 75 and the inner peripheral part of the front cover 11.
- the piston coupling mechanism 76 mainly includes a first plate 77 as a first member fixed to the front cover 11 and a second plate as a second member fixed to the piston 75. 78 and a wiring 79 as a restricting member.
- the first plate 77 includes a first annular portion 77a fixed to the front cover 11, a plurality of first inner peripheral teeth 77b, and a plurality of first outer peripheral teeth 77c.
- the force is composed.
- the first plate 77 is integrally formed.
- the first inner peripheral teeth 77b are portions extending radially inward from the first annular portion 77a, and have a first intersecting portion 77e and a first tip portion 77d.
- the first intersecting portion 77e is a portion that intersects the second inner peripheral teeth 78b described later in the axial direction. Specifically, a part of the first intersection 77e is bent toward the turbine 22 and extends in the axial direction. The portion extending in the axial direction intersects the second inner peripheral tooth 78b.
- the first tip portion 77d is a portion that extends radially inward from the tip of the first intersecting portion 77e, and can contact the wire ring 79 in the axial direction.
- the first outer peripheral teeth 77c are portions extending radially outward from the first annular portion 77a, The part is bent to the turbine 22 side.
- the first outer peripheral tooth 77c overlaps the second outer peripheral tooth 78c described later in the axial direction, and does not intersect the second outer peripheral tooth 78c in the axial direction.
- the second plate 78 includes a second annular portion 78a fixed to the piston 75, a plurality of second inner peripheral teeth 78b, and a plurality of second outer peripheral teeth 78c.
- the force is also composed.
- the second plate 78 is integrally formed.
- the second inner peripheral tooth 78b is a portion extending radially inward from the second annular portion 78a, and has a second intersecting portion 78e and a second tip end portion 78d.
- the second intersecting portion 78e is a portion that intersects the first intersecting portion 77e of the first inner peripheral tooth 77b in the axial direction. Specifically, a part of the second intersecting portion 78e is slightly bent toward the front cover 11 and is inclined with respect to the radial direction.
- the second tip portion 78d is a portion extending radially inward from the tip of the second intersecting portion 78e, and can contact the wire ring 79 in the axial direction.
- the second outer peripheral tooth 78c is a portion extending radially outward from the second annular portion 78a, and a portion thereof is bent toward the front cover 11 side.
- the second outer peripheral teeth 78c overlap with the first outer peripheral teeth 77c in the axial direction, and do not intersect the first outer peripheral teeth 77c in the axial direction.
- the wiring 79 is a substantially annular member with a part cut away, and has a notch 79a.
- the wiring 79 can be elastically deformed in the radial direction, and the outer diameter is changed by applying an external force.
- the first inner peripheral teeth 77b have an axial force inserted between the second inner peripheral teeth 78b. For this reason, the first plate 77 and the second plate 78 can move in the axial direction.
- the second plate 78 can move relative to the first plate 77 by the gap between the clutch plate 71 and the piston 75 from the state shown in FIG.
- the first inner peripheral teeth 77b and the second inner peripheral teeth 78b are in mesh with each other in the rotational direction. For this reason, the first plate 77 and the second plate 78 rotate together.
- the first intersecting portion 77e and the second intersecting portion 78e intersect in the axial direction. For this reason, the positions of the first tip portion 77d and the second tip portion 78d are switched in the axial direction. Specifically, the first annular portion 77a is disposed on the front cover 11 side of the second annular portion, whereas the first distal end portion 77d is disposed on the turbine 22 side of the second distal end portion 78d. Yes.
- a wire ring 79 is sandwiched between the first tip portion 77d and the second tip portion 78d in the axial direction. Yes.
- the second tip portion 78d is hooked on the wire ring 79 in a state where the second inner peripheral teeth 78b are inserted between the first inner peripheral teeth 77b. Thereby, the movement of the second plate 78 toward the turbine 22 relative to the first plate 77 is restricted within a predetermined range.
- the wire ring 79 is disposed on the inner peripheral side of the first inner peripheral tooth 77b, and is positioned in a radial direction at a portion extending in the axial direction of the first inner peripheral tooth 77b. Wiring 79 is fitted in a free state.
- the piston 75 is coupled to the front cover 11 by the piston coupling mechanism 76 so as to be able to rotate integrally and move in the axial direction.
- the piston 75 can move in the axial direction from the state shown in FIG. 2 to the front cover 11 side by the gap with the clutch plate 71.
- the movement of the piston 75 toward the turbine 22 with respect to the front cover 11 is restricted by the wiring 79 via the first plate 77 and the second plate 78.
- the piston coupling mechanism 76 is also characterized by a dimensional relationship. Specifically, as shown in FIG. 2, the cylindrical portion 75a of the piston 75 has an inner diameter (outer diameter of the seal member 32c) of the first diameter Ll, the first tip 77d, and the second tip 78d).
- the inner diameter is the second diameter L2 and the outer diameter of the wiring 79 or the inner diameter of the first intersection 77e in the axial direction is the third diameter L3
- the first diameter L1 is the second diameter L2 and the third diameter L3. Larger than diameter L3.
- the wiring 79 is also assembled with the turbine 22 side force, the vicinity of the first tip portion 77d and the second tip portion 78d can be easily seen from the turbine 22 side, and the assemblability is improved.
- the first tip portion 77d, the second tip portion 78d, and the wiring 79 are disposed so as to overlap the boss portion 32b in the radial direction.
- the turbine hub 32 further has a cylindrical portion 32d extending in the axial direction from the boss portion 32b.
- a piston coupling mechanism 76 is disposed on the outer peripheral side of the cylindrical portion 32d.
- the outer diameter of the cylindrical part 32d is smaller than the outer diameter of the boss part 32b, and a concave part 32e is formed by the boss part 32b and the cylindrical part 32d.
- a first leading end 77d, a second leading end 78d, and a wiring 79 are accommodated in the recess 32e. This allows the inner circumference The space on the side can be used more effectively, and the space on the outer peripheral side of the piston coupling mechanism 76 can be expanded.
- the piston 75 is coupled to the front cover 11 by the piston coupling mechanism 76 so as to be integrally rotatable and movable in the axial direction. Therefore, the piston 75 moves toward the front cover 11 while rotating integrally with the front cover 11. At this time, the movement of the piston 75 in the axial direction is not restricted by the piston coupling mechanism 76 (the first plate 77, the second plate 78, and the wiring 79).
- the clutch plate 71 can rotate with respect to the front cover 11 and the piston 75.
- Torque is not transmitted via the lock-up device 7 and the impeller hub 28 to the turbine 22 Torque is transmitted through the fluid.
- torque can be transmitted from the engine to the transmission via the fluid or directly via the lockup device 7.
- the first plate 77 of the piston coupling mechanism 76 is fixed to the front cover 11 by welding.
- the second plate 78 is fixed by welding with the piston 75.
- the clutch plate 71, the piston 75, and the first thrust bearing 41 are assembled to the front cover 11.
- the piston 75 is assembled so that the first plate 77 and the second plate 78 fit together.
- the wiring 79 is fitted between the first tip portion 77d and the second tip portion 78d.
- the piston 75 is coupled to the front cover 11 by the piston coupling mechanism 76 so as to be able to rotate integrally and move in the axial direction.
- the piston coupling mechanism 76 restricts the movement of the piston 75 toward the turbine 22 within a predetermined range. For this reason, the force S that restricts the movement of the piston 75 in a portion where no relative rotation occurs can be achieved, and the wear of the member caused by the movement of the piston 75 in the axial direction can be prevented, and the friction loss can be reduced.
- the piston coupling mechanism is arranged near the center in the radial direction of the piston. For this reason, it is necessary to arrange the elastic member of the damper mechanism on the outer peripheral side.
- the elastic member is arranged near the center in the radial direction, the space is narrow, so the diameter of the elastic member cannot be increased, and the degree of freedom in design is reduced.
- the piston coupling mechanism 76 is arranged around the inner peripheral portion of the piston 75. Therefore, the space on the outer peripheral side of the piston coupling mechanism 76 is widened, and the force S for increasing the diameters of the first torsion spring 74a and the second torsion spring 74b of the damper mechanism 9 can be achieved. That is, this lockup device 7 improves the degree of design freedom.
- the assembly of the wire ring 79 of the piston coupling mechanism 76 is performed from the inner peripheral side.
- the first diameter L1 of the piston 75 is larger than the second diameter L2 of the piston coupling mechanism 76. This makes it easy to see where the wiring 79 is assembled during assembly, and improves assembly. In addition, even if a defect is found in an assembled part, it can be easily disassembled and replaced with a normal part.
- the shape of the piston coupling mechanism 76 is not limited to the above-described embodiment.
- the first plate 77 and the second plate 78 may be interchanged.
- a portion extending in the axial direction of the first inner peripheral tooth 77b may be formed in the second inner peripheral tooth 78b, and the! /, Misalignment of the first inner peripheral tooth 77b and the second inner peripheral tooth 78b. Also formed!
- the wiring 79 is used for the piston coupling mechanism 76, but the present invention is not limited to this.
- the first plate 77 and the second plate 78 may be engaged in the axial direction.
- first outer peripheral teeth 77c and the second outer peripheral teeth 78c do not intersect in the axial direction.
- first outer peripheral teeth 77c and the second outer peripheral teeth 78c may intersect in the axial direction.
- the wiring 79 is assembled to the first inner peripheral teeth 77b and the second inner peripheral teeth 78b in a free state. However, the wiring 79 is assembled in a state of being compressed in the radial direction!
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Control Of Fluid Gearings (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020097010421A KR101100661B1 (ko) | 2006-12-07 | 2007-12-04 | 록업 장치 및 이것을 구비한 유체식 토크 전달 장치 |
DE112007002843T DE112007002843T5 (de) | 2006-12-07 | 2007-12-04 | Überbrückungsvorrichtung und mit selbiger ausgestatteter Flüssigkeitsdrehmomentübertrager |
US12/446,874 US20100089046A1 (en) | 2006-12-07 | 2007-12-04 | Lockup device and fluid torque transmission device equipped with same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-331030 | 2006-12-07 | ||
JP2006331030A JP4250185B2 (ja) | 2006-12-07 | 2006-12-07 | ロックアップ装置およびそれを備えた流体式トルク伝達装置 |
Publications (1)
Publication Number | Publication Date |
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WO2008072505A1 true WO2008072505A1 (ja) | 2008-06-19 |
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ID=39511527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2007/073386 WO2008072505A1 (ja) | 2006-12-07 | 2007-12-04 | ロックアップ装置およびそれを備えた流体式トルク伝達装置 |
Country Status (5)
Country | Link |
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US (1) | US20100089046A1 (ja) |
JP (1) | JP4250185B2 (ja) |
KR (1) | KR101100661B1 (ja) |
DE (1) | DE112007002843T5 (ja) |
WO (1) | WO2008072505A1 (ja) |
Families Citing this family (10)
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JP5684515B2 (ja) * | 2010-08-20 | 2015-03-11 | 株式会社エクセディ | トルクコンバータ |
DE112013003485A5 (de) * | 2012-07-10 | 2015-03-26 | Schaeffler Technologies Gmbh & Co. Kg | Torsionsschwingungsdämpfer |
DE102012213472B4 (de) | 2012-07-31 | 2021-11-04 | Schaeffler Technologies AG & Co. KG | Torsionsschwingungsdämpfer |
DE102014214882B4 (de) * | 2013-08-06 | 2024-08-29 | Schaeffler Technologies AG & Co. KG | Dämpferbaugruppe für einen Motor und Antriebsstrang für ein Hybridfahrzeug |
WO2016103888A1 (ja) * | 2014-12-24 | 2016-06-30 | 株式会社エクセディ | トルクコンバータのロックアップ装置 |
JP6389430B2 (ja) * | 2014-12-24 | 2018-09-12 | 株式会社エクセディ | トルクコンバータのロックアップ装置 |
JP6724026B2 (ja) * | 2015-02-17 | 2020-07-15 | アリソン・トランスミッション・インコーポレイテッド | トルクコンバータロックアップクラッチ構造 |
JP2016156452A (ja) * | 2015-02-25 | 2016-09-01 | 株式会社エクセディ | トルクコンバータのロックアップ装置 |
US10948061B2 (en) | 2015-11-04 | 2021-03-16 | Schaeffler Technologies AG & Co. KG | Torque converter lockup clutch including axial one-way clutch |
KR102284742B1 (ko) * | 2020-03-26 | 2021-07-30 | 주식회사 카펙발레오 | 실링 링이 생략된 피스톤-스플라인 조립체 및 이를 구비하는 토크 컨버터 |
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JP2002243016A (ja) * | 2001-02-19 | 2002-08-28 | Exedy Corp | 流体式トルク伝達装置のロックアップ装置 |
JP2003269573A (ja) * | 2002-03-15 | 2003-09-25 | Exedy Corp | ピストン連結機構及びそれを備えた流体式トルク伝達装置のロックアップ装置 |
JP2005273709A (ja) * | 2004-03-23 | 2005-10-06 | Exedy Corp | 流体式トルク伝達装置のロックアップ装置 |
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DE3823210C2 (de) * | 1988-07-08 | 1998-04-16 | Mannesmann Sachs Ag | Hydrodynamischer Drehmomentwandler mit Überbrückungskupplung und antriebsseitiger Lagerung des Kolbens |
FR2765296B1 (fr) * | 1997-06-30 | 1999-12-03 | Valeo | Appareil d'accouplement hydrocinetique a embrayage de verrouillage, pour vehicule automobile |
JP3904954B2 (ja) * | 2002-03-15 | 2007-04-11 | 株式会社エクセディ | 流体式トルク伝達装置のロックアップ装置 |
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2006
- 2006-12-07 JP JP2006331030A patent/JP4250185B2/ja not_active Expired - Fee Related
-
2007
- 2007-12-04 DE DE112007002843T patent/DE112007002843T5/de not_active Withdrawn
- 2007-12-04 WO PCT/JP2007/073386 patent/WO2008072505A1/ja active Application Filing
- 2007-12-04 KR KR1020097010421A patent/KR101100661B1/ko not_active IP Right Cessation
- 2007-12-04 US US12/446,874 patent/US20100089046A1/en not_active Abandoned
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JP2002243016A (ja) * | 2001-02-19 | 2002-08-28 | Exedy Corp | 流体式トルク伝達装置のロックアップ装置 |
JP2003269573A (ja) * | 2002-03-15 | 2003-09-25 | Exedy Corp | ピストン連結機構及びそれを備えた流体式トルク伝達装置のロックアップ装置 |
JP2005273709A (ja) * | 2004-03-23 | 2005-10-06 | Exedy Corp | 流体式トルク伝達装置のロックアップ装置 |
Also Published As
Publication number | Publication date |
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JP4250185B2 (ja) | 2009-04-08 |
KR101100661B1 (ko) | 2012-01-03 |
DE112007002843T5 (de) | 2009-09-24 |
JP2008144816A (ja) | 2008-06-26 |
KR20090071659A (ko) | 2009-07-01 |
US20100089046A1 (en) | 2010-04-15 |
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