Inlet control valve for compressors

Details Inlet control valve for compressors Inlet control valve for compressors

1997-09-03

2000-02-22

Freay, Charles G.

Pumps

With condition responsive pumped fluid control

Inlet throttle or stop valve

137523, 251 636, F04B 4922

Patent

active

060273151

ABSTRACT:
A simplified control valve system is provided wherein a single multi-functional orifice provides the required bleed from the control cylinder chamber as well as the required venting of the system for blow down. Preferably, the control line will be an oil scavenger line and the multi-functional orifice will be positioned in the inlet passage of the valve to the compressor and a suitable oil sump positioned adjacent to the multi-optional orifice to collect any oil blown there through during blow down. The valve of the present invention is also adjustable by rotating the valve stem to which the control piston is connected.

REFERENCES:
patent: 4362475 (1982-12-01), Seitz
patent: 4869289 (1989-09-01), Hrabal
patent: 5388967 (1995-02-01), Firnhaber et al.
patent: 5456582 (1995-10-01), Firnhaber et al.
patent: 5533873 (1996-07-01), Kindl

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