Check valve arrangement for engine driven pneumatic compressors

Details Check valve arrangement for engine driven pneumatic compressors Check valve arrangement for engine driven pneumatic compressors

1982-05-13

1984-01-10

Croyle, Carlton R.

Pumps

Motor driven

Internal-combustion engine

F04B 1700

Patent

active

044250851

ABSTRACT:
A check valve is positioned in the pneumatic power system of a vehicle in which air is supplied to a pneumatic compressor from an induction manifold of an engine. The compressor has an oil sump, a start and stop clutch, an air inlet, and an air outlet. A check valve is emplaced in the air inlet conduit leading from the engine manifold to the compressor to provide a one-way flow of air into the compressor when the compressor is running and to block the conduit in response to a vacuum created therein and prevent the vacuum from reaching the compressor when the compressor is not running. The valve prevents oil from the compressor sump from being drawn into the pneumatic system and fouling air actuated devices.

REFERENCES:
patent: 1025977 (1912-05-01), Henderson
patent: 1597088 (1926-08-01), McCracken
patent: 2628015 (1953-02-01), Neugebauer et al.
patent: 3204859 (1965-09-01), Crooks
patent: 3688859 (1972-09-01), Hudspeth et al.
patent: 4355959 (1982-10-01), Kono et al.

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