Compressor unloader assembly

Details Compressor unloader assembly Compressor unloader assembly

1976-08-09

1977-08-23

Freeh, William L.

Pumps

Expansible chamber type

Having separate noncyclic valve

92 605, 417442, F04B 2300

Patent

active

040437108

ABSTRACT:
An unloader assembly for a gas compressor having a compressor suction chamber and a compressor cylinder with a compressor piston slideable therein for effecting one-way gas flow through a suction valve assembly mounted in the compressor suction chamber, said suction valve assembly having a central passage therethrough. An unloader piston is slideably movable in the central passage of the suction valve between a first position closing a plurality of ports in the suction valve each providing communication between the suction chamber and the suction valve central passage and a second position opening the ports. A clearance bottle is mounted on the compressor and a valve controlled aperture permits communication between the suction chamber and the clearance bottle until closed by a clearance bottle valve.

REFERENCES:
patent: 1158321 (1915-10-01), Shipley
patent: 2393405 (1946-01-01), Page
patent: 2690868 (1954-10-01), Gehres
patent: 3295748 (1967-01-01), Leitgeb

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