Hydraulic proportioning valve

Details Hydraulic proportioning valve Hydraulic proportioning valve

1989-05-18

1991-10-01

Graham, Matthew C.

Fluid-pressure and analogous brake systems

Multiple fluid-receiving devices

Multiple motors

188349, 303 975, 277165, B60T 818

Patent

active

050527606

ABSTRACT:
The hydraulic proportioning valve comprises a body (10) having a stepped bore (12) which receives a cylindrical piston (22) biased toward a rest position by a spring (40), and an inlet (16) and an outlet (14) communicating with the bore (12). The piston (22) includes a part (30) with an adjacent valve member (42). The valve member (42) includes a central opening into which the part (30) may be received slideably and sealingly. The sealing engagement between the part (30) and valve member (42) is maintained even though a pressure differential across the valve member (42) may cause the valve member (42) to be displaced in the bore (12).

REFERENCES:
patent: Re31171 (1983-03-01), Brent
patent: 3278241 (1966-10-01), Stelzer
patent: 3395532 (1968-08-01), Stelzer
patent: 3848880 (1974-11-01), Tanner
patent: 4062597 (1977-12-01), Sawyer et al.
patent: 4113317 (1978-09-01), Farr

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