An oil-flooded single-plate or multi-plate lockup clutch is provided in a torque transfer device. The torque transfer device may, for example, be a converter, a dual clutch, a starting clutch, a manual shifter, or power shifting clutch, having a piston to engage the clutch and a damper. In accordanc
An oil-flooded single-plate or multi-plate lockup clutch is provided in a torque transfer device. The torque transfer device may, for example, be a converter, a dual clutch, a starting clutch, a manual shifter, or power shifting clutch, having a piston to engage the clutch and a damper. In accordance with the present disclosure, the piston together with a housing of the torque transfer device forms a closed pressure chamber when the clutch is engaged and at least one oil flow opening is provided in the piston in an area outside of the pressure chamber. The torque transfer device preferably has a damper and the piston of the clutch forms a part of the damper and may be designed as a retainer for springs of the damper.
대표청구항▼
1. An oil-flooded single-plate or multi-plate clutch in a torque transfer device, comprising: a housinga damper; and,a piston, including: a first plate having a friction lining and one or more openings;a second plate connected to the first plate at a bend, the one or more openings arranged radially
1. An oil-flooded single-plate or multi-plate clutch in a torque transfer device, comprising: a housinga damper; and,a piston, including: a first plate having a friction lining and one or more openings;a second plate connected to the first plate at a bend, the one or more openings arranged radially between the friction lining and the bend; anda third plate connected to the first plate, arranged radially inward from the second plate, and forming part of the damper, wherein the third plate extends radially outward from the first plate for connection with the damper;wherein the piston together with the housing forms a closed pressure chamber when the clutch is engaged and the openings are provided in the piston in an area outside of the pressure chamber. 2. The oil-flooded single-plate or multi plate clutch of claim 1, wherein the torque transfer device is a converter, a dual clutch, a starting clutch, a manual shifter, or power shifting clutch. 3. The oil-flooded single-plate or multi-plate clutch according to claim 1, wherein the piston is a part of the damper. 4. The oil-flooded single-plate or multi-plate clutch according to claim 3, wherein the piston is designed as a retainer for springs of the damper. 5. The oil-flooded single-plate or multi-plate clutch according to claim 1, wherein the friction lining is arranged on a motor-side lateral surface of the piston and rests against an opposite inner surface of the housing when the piston is displaced axially, in order to engage the clutch. 6. The oil-flooded single-plate or multi-plate clutch according to claim 3, wherein the friction lining is arranged on a motor-side lateral surface of the piston and rests against an opposite inner surface of the housing when the piston is displaced axially in order to engage the clutch. 7. The oil-flooded single-plate or multi-plate clutch according to claim 1, wherein the piston extends radially outward of the pressure chamber. 8. The oil-flooded single-plate or multi-plate clutch according to claim 5, wherein the piston extends radially outward of the pressure chamber. 9. The oil-flooded single-plate or multi-plate clutch according to claim 1, wherein each of the one or more openings is a drilled hole. 10. The oil-flooded single-plate or multi-plate clutch according to claim 8, wherein each of the one or more openings is a drilled hole. 11. The oil-flooded single-plate or multi-plate clutch according to claim 1, wherein the one or more openings equalizes pressure between a first axial side and a second axial side of the piston. 12. The oil-flooded single-plate or multi-plate clutch according to claim 5, wherein the one or more openings equalizes pressure between a first axial side and a second axial side of the piston. 13. The oil-flooded single-plate or multi-plate clutch according to claim 8, wherein the one or more openings equalizes pressure between a first axial side and a second axial side of the piston. 14. The oil-flooded single-plate or multi-plate clutch according to claim 1, wherein the second plate is arranged as a radially outer retainer. 15. The oil-flooded single-plate or multi-plate clutch according to claim 1, wherein the one or more openings are, at least partially, radially aligned with the damper.
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이 특허에 인용된 특허 (4)
Arhab, Rabah, Compact hydrokinetic coupling apparatus, especially for a motor vehicle.
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