Control system for a hydraulic retarder

Details Control system for a hydraulic retarder Control system for a hydraulic retarder

1988-06-27

1989-06-06

Kashnikow, Andres

Brakes

Internal-resistance motion retarder

Using a rotary-type fluid damper

303 2, 303 10, 192 4B, A61D 5700, B60T 1316, B60T 4124

Patent

active

048363413

ABSTRACT:
A control system includes a hydraulic pump that is driven by the output shaft of the vehicle transmission. A plurality of valve members control the inlet and outlet fluid flow of the pump so that during vehicle braking, a hydraulic retarder is supplied by the pump with hydraulic fluid drawn from a reservoir. When vehicle braking is not requested, the pump inlet is connected to the retarder to evacuate and lubricate the interior thereof.

REFERENCES:
patent: 3882973 (1975-05-01), Hakes
patent: 4324320 (1982-04-01), Spurlin et al.
patent: 4699022 (1987-10-01), Stadt et al.

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