04358254 is referenced by 10 patents and cites 7 patents.

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, two crankcases are provided, sharing a common lubricant sump.

Title
Variable capacity compressor
Application Number
938940
Publication Number
4358254
Application Date
September 22, 1980
Publication Date
November 9, 1982
Inventor
Billy B Hannibal
Tecumseh
MI, US
Agent
John F Hoffman
Albert L Jeffers
Assignee
Tecumseh Products Company
MI, US
IPC
H02K 16/02
F04B 35/04
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