Pressure control valve

Details Pressure control valve Pressure control valve

1998-10-16

2000-04-25

Hepperle, Stephen M.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

137 8706, F16K 31363

Patent

active

060531959

ABSTRACT:
The present invention relates to a pressure control valve for regulating the oil pressure in an oil supply system preferably of an internal combustion engine, with a first working chamber which is in connection with an oil line, with a second working chamber which is in connection with an oil supply line, and with a control slide valve which is substantially movable by the oil pressure in the first working chamber in order to release a throttling aperture on exceeding a first predetermined oil pressure through which oil is released from the second working chamber to a recirculation system. A constructional simplification is achieved in such a way that the control slide valve is provided with a control element which is movable by the oil pressure in the second working chamber relative to a main body of the control slide valve and which on exceeding a second predetermined oil pressure in the second working chamber will release the throttling opening through which oil from the second working chamber is released to the recirculation system.

REFERENCES:
patent: 2767726 (1956-10-01), Feucht
patent: 4062374 (1977-12-01), Marshall et al.
patent: 4139015 (1979-02-01), Sakai

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