F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
F04B 39/02 (2006.01) F01C 21/08 (2006.01) F01C 21/10 (2006.01) F04C 18/067 (2006.01) F04C 18/344 (2006.01) F04C 23/00 (2006.01) F04C 29/02 (2006.01)
Patent
CA 2274413
A hermetic rotary compressor comprising a housing, a cylinder block and a bearing assembly in the housing and defining a cylindrical cavity therein. A roller piston, drivingly coupled to a motor, is disposed in the cylindrical cavity. The cylinder block includes a reciprocating vane within a vane slot defined therein. The vane slot extends axially through said cylinder block, radially from an outside perimeter surface of the cylinder block to the cylindrical cavity. At least a portion of the vane slot is defined by a pair of substantially parallel sidewalk with the vane disposed in the vane slot and urged against the roller piston. The vane is guided by the substantially parallel sidewalls and a clearance exists between the vane and the substantially parallel sidewalls. A pool of liquid lubricant is disposed within a sump defined by a discharge chamber and a lower portion of the vane and the clearance are immersed in the liquid lubricant, whereby the vane is lubricated and a refrigerant gas seal is established between the clearance and the vane.
Sim & Mcburney
Tecumseh Products Company
LandOfFree
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