192 clutches and power-stop control – Elements – Thrust members – retarders – and stops
Patent
1997-05-22
1999-07-20
Bonck, Rodney H.
192 clutches and power-stop control
Elements
Thrust members, retarders, and stops
91469, 13762564, F16D 4806
Patent
active
059245395
ABSTRACT:
A fluid-operated system which can supply a pressurized fluid (e.g., oil) to one or more adjustable consumers (such as a clutch and/or a transmission) in a motor vehicle. The system employs one or more fluid pressurizing pumps and/or accumulators and an arrangement of valves in a path for pressurized fluid from the pressurizing unit(s) to the consumer(s). The valves can vary the fluid pressure in dependency upon at least one variable (such variable can be selected by a control unit in conjunction with an actor). In accordance with one presently preferred embodiment, the valves can cooperate with one or more flow restrictors to impart to the fluid in the path a first pressure within a first range of varying pressures as a first function of the at least one variable, and a second pressure within a second range of varying pressures as a different second function of the at least one variable. One of the valves can be embodied in or located outside of the mobile valving element and/or housing of another valve.
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Braun Johannes
Panther Urban
Bonck Rodney H.
LuK Getriebe-Systeme GmbH
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