Hydrokinetic torque coupling device having turbine-piston lockup clutch and intermediate clutch component, and related methods
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16H-045/02
F16H-045/00
출원번호
US-0522333
(2014-10-23)
등록번호
US-9528586
(2016-12-27)
발명자
/ 주소
Depraete, Alexandre
Lee, Sungchul
출원인 / 주소
Valeo Embrayages
대리인 / 주소
Berenato & White, LLC
인용정보
피인용 횟수 :
5인용 특허 :
8
초록▼
A hydrokinetic torque coupling device features an impeller including an impeller shell, a casing shell connected to the impeller shell to establish a casing with a first engagement surface, a turbine-piston including an axially movable turbine-piston shell, and an annular intermediate clutch compone
A hydrokinetic torque coupling device features an impeller including an impeller shell, a casing shell connected to the impeller shell to establish a casing with a first engagement surface, a turbine-piston including an axially movable turbine-piston shell, and an annular intermediate clutch component affixed to the turbine-piston shell and including a lockup portion. The lockup portion has a second engagement surface that is movable axially toward and away from the first engagement surface to position the hydrokinetic torque coupling device into and out of a lockup mode.
대표청구항▼
1. A hydrokinetic torque coupling device for coupling a driving shaft and a driven shaft together, comprising: an impeller rotatable about a rotational axis and comprising an impeller shell;a casing shell rotatable about the rotational axis and connected to the impeller shell to establish a casing o
1. A hydrokinetic torque coupling device for coupling a driving shaft and a driven shaft together, comprising: an impeller rotatable about a rotational axis and comprising an impeller shell;a casing shell rotatable about the rotational axis and connected to the impeller shell to establish a casing of the hydrokinetic torque coupling device, the casing having a first engagement surface;a turbine-piston coaxially aligned with and hydrodynamically drivable by the impeller, the turbine-piston comprising an axially movable turbine-piston shell;an annular intermediate clutch component affixed to the turbine-piston shell and comprising a lockup portion and a drive portion, the lockup portion of the intermediate clutch component having a second engagement surface that is movable axially toward and away from the first engagement surface of the casing to position the hydrokinetic torque coupling device into and out of a lockup mode in which the annular intermediate clutch component with the turbine-piston shell affixed thereto is mechanically locked with so as to be non-rotatable relative to the casing;an output hub; anda damper assembly interconnecting the annular intermediate clutch component and the output hub, the drive portion of the intermediate clutch component engaging the damper assembly and being axially movable relative to the damper assembly,wherein the casing shell forms the first engagement surface of the casing. 2. The hydrokinetic torque coupling device of claim 1, wherein the first engagement surface or the second engagement surface comprises a frictional lining. 3. The hydrokinetic torque coupling device of claim 1, wherein the drive portion of the intermediate clutch component is axially movable. 4. The hydrokinetic torque coupling device of claim 1, wherein the lockup portion of the intermediate clutch component is radially outside of turbine blades of the turbine-piston. 5. The hydrokinetic torque coupling device of claim 1, wherein the first and second engagement surfaces extend radially at an angle of about 90 degrees relative to the rotational axis. 6. The hydrokinetic torque coupling device of claim 1, wherein the lockup portion and the drive portion are integral with one another as a single piece. 7. The hydrokinetic torque coupling device of claim 1, wherein the turbine-piston shell partitions an interior volume of the casing into a torus chamber and a damper chamber, the torus chamber containing impeller blades of the impeller and turbine blades of the turbine-piston, the damper chamber containing the intermediate clutch component. 8. The hydrokinetic torque coupling device of claim 1, wherein the turbine-piston shell and the intermediate clutch component are axially movable towards an input side of the hydrokinetic torque coupling device in order to frictionally couple the first and second engagement surfaces and position the hydrokinetic torque coupling device in the lockup mode, and wherein the turbine-piston shell and the intermediate clutch component are axially movable towards an output side of the hydrokinetic torque coupling device so that the first and second engagement surfaces are not frictionally coupled and the hydrokinetic torque coupling device is not in the lockup mode. 9. The hydrokinetic torque coupling device of claim 1, wherein the damper assembly comprises: an input part non-rotatably connected to the drive portion of the intermediate clutch component;an output part non-rotatably connected to the output hub; andcircumferential torsional vibration dampers rotatably interconnecting the input part to the output part. 10. The hydrokinetic torque coupling device of claim 1, wherein the damper assembly comprises first and second dampers serially arranged between the drive portion and the output hub. 11. The hydrokinetic torque coupling device of claim 1, wherein the drive portion forms an input part of the damper assembly, and wherein the damper assembly further comprises an output part non-rotatably connected to the output hub and circumferential torsional vibration dampers rotatably interconnecting the drive portion and the output part. 12. The hydrokinetic torque coupling device of claim 1, wherein the damper assembly comprises an intermediate member, a first set of circumferentially extending elastic damping members drivingly coupling the drive portion of the intermediate clutch component 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. 13. The hydrokinetic torque coupling device of claim 1, wherein the damper assembly comprises an intermediate member, a first set of circumferentially extending elastic damping members drivingly coupling the drive portion of the intermediate clutch component 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. 14. 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, the torque converter comprising an impeller comprising an impeller shell, a turbine-piston comprising a turbine-piston shell;operatively connecting the torque converter with a damper assembly and an intermediate clutch component comprising a lockup portion and a drive portion, whereby the damper assembly interconnects the annular intermediate clutch component and an output hub, the drive portion of the intermediate clutch component engaging the damper assembly and being axially movable relative to the damper assembly; andoperatively connecting the torque converter with a casing shell and the intermediate clutch component to provide a structure comprising (i) the lockup portion affixed to the turbine-piston shell, (ii) a casing comprising the casing shell and the impeller shell and having a first engagement surface, and (iii) the lockup portion having a second engagement surface that is movable axially toward and away from the first engagement surface of the casing to position the hydrokinetic torque coupling device into and out of a lockup mode in which the annular intermediate clutch component with the turbine-piston shell affixed thereto is mechanically locked with so as to be non-rotatable relative to the casing,wherein the casing shell forms the first engagement surface of the casing. 15. A method of coupling a driving shaft and a driven shaft together with a hydrokinetic torque coupling device comprising an impeller rotatable about a rotational axis and comprising an impeller shell, a casing shell rotatable about the rotational axis and connected to the impeller shell to establish a casing in which the casing shell includes a first engagement surface, a turbine-piston coaxially aligned with and hydrodynamically drivable by the impeller and comprising an axially movable turbine-piston shell, an annular intermediate clutch component affixed to the turbine-piston shell and comprising a lockup portion and a drive portion, an output hub, and a damper assembly configured to interconnect the drive portion of the annular intermediate clutch component and the output hub, wherein the lockup portion of the intermediate clutch component has a second engagement surface that is movable axially toward and away from the first engagement surface of the casing to position the hydrokinetic torque coupling device into and out of a lockup mode in which the annular intermediate clutch component with the turbine-piston shell affixed thereto is mechanically locked with so as to be non-rotatable relative to the casing, the method comprising: operatively connecting the driving shaft to the impeller shell; andoperatively connecting the driven shaft to the output hub; andcontrolling axial movement of the turbine-piston to move the hydrokinetic torque coupling device into and out of the lockup mode.
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