Hydraulic retarder and control

Details Hydraulic retarder and control Hydraulic retarder and control

1990-10-17

1992-04-07

Butler, Douglas C.

Brakes

Internal-resistance motion retarder

Using a rotary-type fluid damper

60337, 188274, 192 4B, F16D 5702

Patent

active

051019418

ABSTRACT:
A hydraulic retarder is disposed to receive fluid as directed by a flow valve to selectively retard vehicle motion. The flow valve responds to an operator controlled modulator valve to direct fluid from a cooler which is supplied from a torque converter to the hydraulic retarder upon a request by the operator. A modulator valve is also effective to control the pressure of the fluid exiting the cooler and entering the retarder.

REFERENCES:
patent: 3814221 (1974-06-01), Fuehrer
patent: 3858459 (1975-01-01), Fuehrer et al.
patent: 3863739 (1975-02-01), Schaefer et al.
patent: 3931870 (1976-01-01), Memmer

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