Pump drive launch device actuator
First Claim
1. A powertrain comprising:
- an engine;
a transmission having a transmission input shaft;
a launch clutch connected between the engine and the transmission input shaft for coupling the engine to the transmission when the launch clutch is in an engaged condition and for decoupling the engine from the transmission when the launch clutch is in a disengaged condition;
a pump for providing pressurized hydraulic fluid;
a device rotationally coupled to the launch clutch and to the pump, wherein the device is translatable along an axis between a first position and a second position, wherein the device moves the launch clutch to the engaged condition when in the first position and does not move the launch clutch to the engaged condition when in the second position, and wherein the transmission input shaft is supported for rotation on the device;
a piston in communication with the pressurized hydraulic fluid provided by the pump and configured to translate the device along the axis between at least one of the first and second positions.
3 Assignments
0 Petitions
Accused Products
Abstract
A powertrain includes an engine, a transmission, a pump for providing pressurized hydraulic fluid and a launch clutch connected between the engine and the transmission for coupling the engine to the transmission when the launch clutch is in an engaged condition and for decoupling the engine from the transmission when the launch clutch is in a disengaged condition. A device is rotationally coupled to the engine and to the pump. The device is translatable along an axis between a first position and a second position. The device moves the launch clutch to the engaged condition when in the first position and does not move the launch clutch to the engaged condition when in the second position. A piston in communication with the pressurized hydraulic fluid provided by the pump is configured to translate the device along the axis between at least one of the first and second positions.
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Citations
19 Claims
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1. A powertrain comprising:
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an engine; a transmission having a transmission input shaft; a launch clutch connected between the engine and the transmission input shaft for coupling the engine to the transmission when the launch clutch is in an engaged condition and for decoupling the engine from the transmission when the launch clutch is in a disengaged condition; a pump for providing pressurized hydraulic fluid; a device rotationally coupled to the launch clutch and to the pump, wherein the device is translatable along an axis between a first position and a second position, wherein the device moves the launch clutch to the engaged condition when in the first position and does not move the launch clutch to the engaged condition when in the second position, and wherein the transmission input shaft is supported for rotation on the device; a piston in communication with the pressurized hydraulic fluid provided by the pump and configured to translate the device along the axis between at least one of the first and second positions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A powertrain comprising:
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an engine having an engine output shaft; a transmission having a transmission input shaft; a launch clutch connected between the engine output shaft and the transmission input shaft for coupling the engine to the transmission when the launch clutch is in an engaged condition and for decoupling the engine from the transmission when the launch clutch is in a disengaged condition; a pump having a pump rotor; a spring plate connected to the launch clutch that biases the launch clutch to the engaged condition; a shaft rotationally coupled to the pump rotor and to the spring plate, wherein the shaft translates against the bias of the spring plate to move the launch clutch to the disengaged condition; a spring hub connected to the shaft and to the spring plate; a damper connected between the launch clutch and the engine, and wherein the damper is supported for rotation on the spring hub by a plurality of bearings; and an actuator configured to translate the shaft. - View Dependent Claims (17, 18, 19)
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Specification