Pressure reducer for hydraulic brake systems

Details Pressure reducer for hydraulic brake systems Pressure reducer for hydraulic brake systems

1981-03-02

1983-03-22

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Bi-directional flow valves

137505, 251DIG1, 303 6C, B60T 826

Patent

active

043771769

ABSTRACT:
A pressure reducer for hydraulic brake systems comprises a stepped piston carrying a sealing ring in a circumferential groove thereof. The sealing section of the sealing ring begins at the groove wall adjacent the outlet chamber and joins a transitional section of smaller diameter adjacent the inlet chamber. The sealing ring fills the groove essentially completely at least in the sealing section. Preferably the sealing ring abuts the bottom of the groove over its entire axial length. This results in a defined position for the sealing section without excessive friction and wear occurring during operation.

REFERENCES:
patent: 3088285 (1963-05-01), Giacosa
patent: 3209542 (1965-10-01), Francia
patent: 3283504 (1966-11-01), Stelzer
patent: 3814121 (1974-06-01), Lawson
patent: 4059174 (1977-11-01), Carre

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