Variable capacity compressor

Details Variable capacity compressor Variable capacity compressor

1978-09-01

1981-02-24

Gluck, Richard E.

Pumps

Motor driven

Electric or magnetic motor

417426, 310114, F04B 3504, H02K 1602

Patent

active

042525063

ABSTRACT:
A variable capacity compressor for refrigeration systems such as air conditioners and heat pumps comprising an outer casing having a lubricant sump in the lower portion thereof, a crankcase internally spring mounted within the outer casing and having a pair of parallel, vertical crankshafts rotatably supported therein, wherein the crankshafts are arranged in side-by-side relationship, and at least two expansible chamber pumps, which may be piston, rotary or screw type, driven by the crankshafts. A pair of independently controlled electric motors have their rotors drivingly connected to the crankshafts, and in one embodiment of the invention, the motors have a common stator with two independently controlled sets of windings. In a further embodiment of the invention, two crankcases are provided, sharing a common lubricant sump.

REFERENCES:
patent: 388093 (1888-08-01), Waddell
patent: 3253776 (1966-05-01), Parker
patent: 3509907 (1970-05-01), Garraway
patent: 3651355 (1972-03-01), Mason
patent: 3785169 (1974-01-01), Gyllard
patent: 4105374 (1978-08-01), Scharf

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