Hydraulic circuit for activating a clutch and a throttle valve u

Details Hydraulic circuit for activating a clutch and a throttle valve u Hydraulic circuit for activating a clutch and a throttle valve u

1983-01-31

1986-02-04

Bonck, Rodney H.

192 clutches and power-stop control

Clutch and brake

91468, 192 18A, 192109F, F16D 2514, F16D 6704

Patent

active

045679711

ABSTRACT:
A hydraulic circuit is disclosed for activating a clutch as well as a throttle valve which is used in the circuit. The hydraulic circuit includes a hydraulic actuator which is connected to a source of pressurized fluid to alternatively activate the clutch. Connected between the source of pressurized fluid in the actuator is a control valve and a pressure-responsive throttle valve. The control valve is basically an on/off valve which controls the flow of fluid to the clutch actuator or from the clutch actuator to a reservoir. The throttle valve, on the other hand, is arranged in series with the control valve and is responsive to fluid pressure on its downstream side to cause increased throttling of the fluid as the fluid pressure to the actuator increases. Such a circuit is beneficial in preventing the clutch from snatching as it is being engaged.

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