Dual flow single cell rotary compressor

F - Mech Eng,Light,Heat,Weapons – 01 – C

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F01C 1/30 (2006.01) F04C 18/356 (2006.01)

Patent

CA 2032787

R3-20,032 DUAL FLOW SINGLE CELL ROTARY COMPRESSORS Abstract of the Disclosure A rotary compressor having a frame defining a cylindrical aperture and a vane slot extending radially outwardly from the cylindrical aperture is provided. The frame also defines a first inlet port extending radially outwardly from said cylindrical aperture through the frame on one side of the vane slot. A vane is slidably mounted in the vane slot. Two journal bearing plates, each defining a journal bearing extending axially therethrough, are situated on either side of the cylindrical aperture defining a cylindrical chamber. The first journal bearing plate 23 defining a second inlet port extending axially inwardly through the first journal bearing plate. The second inlet port situated on the other side of the vane from the first inlet port. The second journal bearing plate further defines an outlet port extending axially through the second journal plate. The outlet port is situated opposite the second inlet port. A first check valve is situated in the second inlet port for permitting flow only axially. A second check valve is situated in the outlet port for permitting flow only from the cylindrical chamber. A shaft extends through the cylindrical chamber and is rotatably mounted in the journal bearings. The portion of the shaft situated in the cylindrical chamber has an eccentrically extending circular lobe. A rolling piston surrounds the circular lobe and contacts a portion of the cylindrical chamber periphery and the cover and both journal bearing plates.

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