Hydrokinetic torque coupling device having turbine-piston lockup clutch, and related methods
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16H-045/02
F16F-015/129
F16F-015/139
출원번호
US-0611347
(2017-06-01)
등록번호
US-10119605
(2018-11-06)
발명자
/ 주소
Depraete, Alexandre
Werthman, David
출원인 / 주소
Valeo Embrayages
대리인 / 주소
Berenato & White, LLC
인용정보
피인용 횟수 :
0인용 특허 :
21
초록▼
A hydrokinetic torque coupling device includes an impeller, a casing having a first engagement surface, a turbine-piston hydrodynamically drivable by the impeller, and a biasing device. The turbine-piston is hydrodynamically drivable by the impeller and includes a turbine-piston shell having a secon
A hydrokinetic torque coupling device includes an impeller, a casing having a first engagement surface, a turbine-piston hydrodynamically drivable by the impeller, and a biasing device. The turbine-piston is hydrodynamically drivable by the impeller and includes a turbine-piston shell having a second engagement surface facing the first engagement surface. The turbine-piston is axially displaceable relative to the impeller between a hydrodynamic transmission mode and a lockup mode. The biasing device is configured to exert an axial load against the turbine-piston to urge the turbine-piston axially away from the lockup mode and towards the hydrodynamic transmission mode. The axial load exerted by the biasing device decreases as the turbine-piston moves axially towards the lockup mode and increases as the turbine-piston moves axially away from the lockup mode.
대표청구항▼
1. A hydrokinetic torque coupling device for coupling together a driving shaft and a driven shaft, the torque coupling device comprising: an impeller rotatable about a rotational axis and comprising an impeller shell;a casing comprising the impeller shell and a casing shell fixedly connected thereto
1. A hydrokinetic torque coupling device for coupling together a driving shaft and a driven shaft, the torque coupling device comprising: an impeller rotatable about a rotational axis and comprising an impeller shell;a casing comprising the impeller shell and a casing shell fixedly connected thereto so as to be non-rotatable relative to the impeller shell, the casing having a first engagement surface;a turbine-piston hydrodynamically drivable by the impeller and comprising a turbine-piston shell having a second engagement surface facing the first engagement surface, the turbine-piston being axially displaceable relative to the impeller between a hydrodynamic transmission mode in which the first and second engagement surfaces are spaced from and not frictionally engaged with one another, and a lockup mode in which the first and second engagement surfaces are frictionally engaged with one another to mechanically lock the turbine-piston with the casing so as to be non-rotatable relative to the casing;a biasing device configured to exert an axial load against the turbine-piston to urge the turbine-piston axially away from the lockup mode and towards the hydrodynamic transmission mode, wherein the axial load exerted by the biasing device decreases as the turbine-piston moves axially towards the lockup mode and increases as the turbine-piston moves axially away from the lockup mode; andan output hub;the turbine-piston axially movably relative to the output hub. 2. The hydrokinetic torque coupling device of claim 1, wherein the biasing device exerts a nonlinear load against the turbine-piston to urge the turbine-piston axially away from the lockup mode and towards the hydrodynamic transmission mode, wherein the nonlinear load exerted by the biasing device is not proportional to displacement of the turbine-piston between the lockup mode and the hydrodynamic transmission mode. 3. The hydrokinetic torque coupling device of claim 1, further comprising a stator situated between the impeller and the turbine-piston. 4. The hydrokinetic torque coupling device of claim 3, wherein the biasing device is situated between the stator and the turbine-piston shell. 5. The hydrokinetic torque coupling device of claim 4, wherein the biasing device is part of a biasing and bearing device which comprises: a stator-side retainer member connected to and non-rotatable relative to the stator;a turbine-side retainer member connected to and non-rotatable relative to the turbine-piston; andthe biasing device situated between the stator-side retainer member and the turbine-side retainer member. 6. The hydrokinetic torque coupling device of claim 5, wherein the biasing device is rotatable relative to one of the turbine-side retainer member and the stator-side retainer member and fixedly connected to the other of the turbine-side retainer member and the stator-side retainer member. 7. The hydrokinetic torque coupling device of claim 5, wherein the biasing device is rotatable relative to at least one of the turbine-side retainer member and the stator-side retainer member. 8. The hydrokinetic torque coupling device of claim 5, wherein the turbine-side retainer member is mounted on the turbine-piston shell. 9. The hydrokinetic torque coupling device of claim 1, wherein the biasing device comprises a diaphragm spring. 10. The hydrokinetic torque coupling device of claim 1, wherein the biasing device comprises a spring washer. 11. The hydrokinetic torque coupling device of claim 10, wherein the spring washer is fixedly connected to the turbine-piston shell. 12. The hydrokinetic torque coupling device of claim 11, wherein the biasing device further comprises a thrust washer connected to and non-rotatable relative to the stator, and wherein the thrust washer contacts and is rotatable relative to the spring washer. 13. The hydrokinetic torque coupling device of claim 1, wherein the biasing device comprises a bayonet connector. 14. The hydrokinetic torque coupling device of claim 13, wherein the bayonet connector comprises first and second bayonet housing members and at least one Belleville spring housed between the first and second bayonet housing members. 15. The hydrokinetic torque coupling device of claim 1, wherein the first engagement surface or the second engagement surface comprises a frictional lining. 16. The hydrokinetic torque coupling device of claim 1, wherein the turbine-piston shell further comprises a radially extending flange defining the second engagement surface. 17. A hydrokinetic torque coupling device for coupling together a driving shaft and a driven shaft, the torque coupling device comprising: an impeller rotatable about a rotational axis and comprising an impeller shell;a casing comprising the impeller shell and a casing shell fixedly connected to so as to be non-rotatable relative to the impeller shell, the casing having a first engagement surface;a turbine-piston hydrodynamically drivable by the impeller and comprising a turbine-piston shell having a second engagement surface facing the first engagement surface, the turbine-piston being axially displaceable relative to the impeller between a hydrodynamic transmission mode in which the first and second engagement surfaces are spaced from and not frictionally engaged with one another, and a lockup mode in which the first and second engagement surfaces are frictionally engaged with one another to mechanically lock the turbine-piston with the casing so as to be non-rotatable relative to the casing;a stator situated between the impeller and the turbine-piston;a biasing device configured to exert an axial load against the turbine-piston to urge the turbine-piston axially away from the lockup mode and towards the hydrodynamic transmission mode, wherein the axial load exerted by the biasing device decreases as the turbine-piston moves axially towards the lockup mode and increases as the turbine-piston moves axially away from the lockup mode;an output hub; anda damper assembly interconnecting the turbine-piston to the output hubs;the turbine-piston axially movably relative to the output hub. 18. The hydrokinetic torque coupling device of claim 17, further comprising a drive member interconnecting the turbine-piston shell to the damper assembly, wherein the damper assembly comprises an intermediate member, a first set of circumferentially extending elastic damping members drivingly coupling the drive member to the intermediate member, a driven member connected to and non-rotatable relative to the output hub, a second set of circumferentially extending elastic damping members drivingly coupling the intermediate member to the driven member, and a centrifugal pendulum oscillator mounted to the intermediate member. 19. The hydrokinetic torque coupling device of claim 17, further comprising a drive member interconnecting the turbine-piston shell to the damper assembly, wherein the damper assembly comprises an intermediate member, a first set of circumferentially extending elastic damping members drivingly coupling the drive member to the intermediate member, a driven member connected to and non-rotatable relative to the output hub, a second set of circumferentially extending elastic damping members drivingly coupling the intermediate member to the driven member, and a spring mass system coupled to the intermediate member. 20. A method of assembling a hydrokinetic torque coupling device for coupling a driving shaft and a driven shaft together, comprising: providing a torque converter rotatable about a rotational axis and comprising an impeller comprising an impeller shell;a turbine-piston hydrodynamically drivable by the impeller and comprising a turbine-piston shell; anda biasing device;providing an output hub; andoperatively connecting a casing shell to the impeller shell of the torque converter to form a casing that is rotatable about the rotational axis and has a first engagement surface, the turbine-piston having a second engagement surface and being axially displaceable relative to the impeller between a hydrodynamic transmission mode in which the first and second engagement surfaces are spaced from and not frictionally engaged with one another, and a lockup mode in which the first and second engagement surfaces are frictionally engaged with one another to mechanically lock the turbine-piston with the casing so as to be non-rotatable relative to the casing,wherein the biasing device is configured to exert an axial load against the turbine-piston to urge the turbine-piston axially away from the lockup mode and towards the hydrodynamic transmission mode, wherein the axial load exerted by the biasing device decreases as the turbine-piston moves axially towards the lockup mode and increases as the turbine-piston moves axially towards the hydrodynamic transmission mode, and wherein the turbine-piston is axially movably relative to the output hub.
Degler, Mario; Krause, Thorsten; Schenck, Kai; Werner, Markus; Engelmann, Dominique, Force transmission device in particular for power transmission between a drive engine and an output.
Depraete, Alexandre; Lee, Sungchul, Hydrokinetic torque coupling device having turbine-piston lockup clutch and intermediate clutch component, and related methods.
Depraete, Alexandre, Torque converter and hydrokinetic torque coupling device having turbine-piston lockup clutch with flow restrictor, and related methods.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.