Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent
1976-10-15
1979-01-09
Cline, William R.
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
13750511, F16K 4502
Patent
active
041333438
ABSTRACT:
A hydraulic powered brake and parking brake arrangement powered by the power steering gear pump, and a pressure control assembly in the system. The control assembly acts as a pressure regulator for the parking brake actuators, provides for pressure relief to prevent a build up of excess pressure to the parking brake regulators, assures the provision of brake hold off pressure to the regulators even though the pressure from the power steering pump falls below the pressure required by the actuators, and provides for limiting the pressure available to the assembly when the power steering gear pump is working against a pressure in its upper range of capability.
REFERENCES:
patent: 2192141 (1940-02-01), McElwaine
patent: 2487650 (1949-11-01), Grove et al.
patent: 2747607 (1956-05-01), Matsovic
patent: 2894526 (1959-07-01), Booth et al.
patent: 2963040 (1960-12-01), Zimmer
patent: 3153424 (1964-10-01), Acker et al.
Cline William R.
General Motors Corporation
McGraw D. D.
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