Rotary compressor

Details Rotary compressor Rotary compressor

1988-05-25

1991-09-17

Smith, Leonard E.

Pumps

Plural pumps with individual or relative control

Distributor adjustment

62175, 621963, 62510, 417428, F04B 2500

Patent

active

050502336

ABSTRACT:
A rotary compressor includes first and second compressor sections, and a motor for driving the compressor sections. The first and second compressor sections have first and second cylinders, respectively, and each cylinders has a suction port. First and second suction pipes are connected to the suction ports, and first and second change over valves are provided at the first and second pipes, respectively. The first cylinder has a release port for releasing a port of the gas being compressed in the first cylinder. A release pipe provided with a third changed over valve is connected to the release port. The operaations of the first to third valves are controlled by a control circuit so that the capacity of the compressor varies in the plurality of steps in accordance with the loads applied thereto.

REFERENCES:
patent: 2178100 (1939-10-01), Gygax
patent: 2245053 (1941-06-01), Sanders, Jr.
patent: 2550457 (1951-04-01), Dodson
patent: 3658440 (1972-05-01), Jackson
patent: 4344297 (1982-08-01), Uneo et al.
patent: 4535602 (1985-08-01), Alsenz et al.

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