Oil pump for hermetic compressor

Details Oil pump for hermetic compressor Oil pump for hermetic compressor

F - Mech Eng,Light,Heat,Weapons

04

B

230/49, 230/50

F04B 35/00 (2006.01) F04B 39/02 (2006.01) F16N 7/36 (2006.01)

Patent

CA 1172220

OIL PUMP FOR HERMETIC COMPRESSOR . ABSTRACT OF THE DISCLOSURE A hermetic refrigeration compressor has a two-stage oil pump in the vertically aligned crankshaft that is jour- naled in a combination thrust and radial bearing at the bottom of the crankshaft. The oil passes upward through an axial passage in the crankshaft and then outward through a radial passage which comprises the first stage of the pump. The oil then passes through a wide and shallow groove around most of the periphery of the crankshaft and is then returned through a second radial passage to another vertical passage offset from the axis of the crankshaft to move the oil upward to lubricate the various moving parts of the compressor.

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