Valve unloading means, and a valve unloading actuator therefor

Details Valve unloading means, and a valve unloading actuator therefor Valve unloading means, and a valve unloading actuator therefor

1994-03-28

1995-01-03

Bertsch, Richard A.

Pumps

With condition responsive pumped fluid control

Expansible chamber pump distributor operation modified

417524, 137522, 251 636, F04B 4900

Patent

active

053781171

ABSTRACT:
A cylindrical gas compressor has inlet valves confined therewithin, at opposite ends thereof, and discharge valves, shaft-mounted therebetween, for reciprocation to ingest and compress admitted gas. Outboard of the inlet valves are circular plates from which extend a plurality of fingers. The plates are confined within chambers in the compressor, and radial ports are provided for admitting pressured fluid to the plates to cause them to move inboard, whereby the fingers penetrate the inlet valves and remove the inlet valve valving elements off the valve seat, effecting unloading of the inlet valves. Springs hold the plates outboard of the inlet valves, to allow the valves to function normally-loaded, in the absence of the plate-displacing, ports-admitted, pressured fluid.

REFERENCES:
patent: 2037140 (1936-04-01), Nathan
patent: 2626100 (1953-01-01), McIntyre
patent: 2991924 (1961-07-01), Ramsay
patent: 3000319 (1961-09-01), Tuck
patent: 5011383 (1991-04-01), Bennitt
patent: 5025830 (1991-06-01), Kursar

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