Diaphragm-operated pressure control valve assembly

Details Diaphragm-operated pressure control valve assembly Diaphragm-operated pressure control valve assembly

1977-07-15

1979-04-24

Burns, Wendell E.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

137510, 137544, 137546, F07M 2506

Patent

active

041506421

ABSTRACT:
A pressure control valve assembly comprising a rubber diaphragm to which is applied the negative pressure of the engine intake manifold and the exhaust gas pressure of the engine exhaust manifold. The diaphragm of the present invention is formed with a gradual descent sloping down from a valve-actuating central portion to an outer periphery. Adjacent to one portion of the outer periphery of the diaphragm a port opening to the outside of the valve assembly is provided. Thus, any gas ingredients such as condensed water can be expelled along the descent of the diaphragm via the port without gathering on the diaphragm surface which will therefore be free from objectionable oxidation or corrosion.

REFERENCES:
patent: 3756210 (1973-09-01), Kuehl
patent: 3802402 (1974-04-01), Swatman
patent: 3834366 (1974-09-01), Kingsbury
patent: 3881456 (1975-05-01), Nohira et al.
patent: 4041917 (1977-08-01), Suzuki

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