Vehicle hydraulic brake system and apparatus

Details Vehicle hydraulic brake system and apparatus Vehicle hydraulic brake system and apparatus

1981-06-04

1984-05-01

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Multiple fluid-receiving devices

Multiple motors

188195, 188349, 303 22R, B60T 822

Patent

active

044457251

ABSTRACT:
A hydraulic braking system is provided for vehicles which frequently experience variable loading conditions ranging from maximum to near minimum gross vehicle weights. The system comprises dual proportioning valves, hydraulically in series with one another, one valve includes a unique spring driven digital cam which, in response to compression of the vehicle suspension system, selects the desired master cylinder to brake pressure relationship for the vehicle load condition.

REFERENCES:
patent: 3322246 (1967-05-01), Noguchi
patent: 3697138 (1972-10-01), Marting
patent: 3731981 (1973-05-01), Bueler
patent: 3768868 (1973-10-01), Hirai et al.
patent: 3802750 (1974-04-01), Kawai
patent: 3938850 (1976-02-01), Pembleton et al.
patent: 4125290 (1978-11-01), Reinecke et al.
patent: 4223955 (1980-09-01), Reinecke
patent: 4247154 (1981-01-01), Shoji et al.

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