Brake pressure control valve

Details Brake pressure control valve Brake pressure control valve

1986-02-24

1987-10-20

Kashnikow, Andres

Fluid-pressure and analogous brake systems

Multiple fluid-receiving devices

Multiple motors

188195, 303 22R, B60T 818, B60T 1300

Patent

active

047009900

ABSTRACT:
A brake pressure control valve (1) for use on a vehicle having a modulated self-levelling air suspension system comprises a valve body (2) sealingly secured to the wall (4) of a pressure chamber of the suspension system to close an aperture (7) in the wall. A brake pressure apportioning valve set (11) is located within the valve body and has a control member (15) the upward force (A) on which determines the cut-in pressure. Fluid pressure within the pressure chamber (5) is communicated to a control chamber (18) via a small orifice (21) in a steel cup (20) which closes the bottom of the valve body. Pressure within control chamber (18) is applied to a diaphragm (20) which permits pressure transfer to a pressure plate (16) abutting the control member (15) but prevents loss of fluid from the control chamber (18).

REFERENCES:
patent: 3475059 (1969-10-01), Klein
patent: 4062597 (1977-12-01), Sawyer et al.
patent: 4325581 (1982-04-01), Pickering

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