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A hermetic two stage rotary compressor having a housing with a stationary shaft fixedly mounted in the housing. A motor having a rotor and a stator is mounted in the housing with the rotor being rotatably mounted on the shaft. A pair of compression mechanisms are rotatably mounted on the shaft with

A hermetic two stage rotary compressor having a housing with a stationary shaft fixedly mounted in the housing. A motor having a rotor and a stator is mounted in the housing with the rotor being rotatably mounted on the shaft. A pair of compression mechanisms are rotatably mounted on the shaft with one compression mechanism being located adjacent a first end of the rotor, and one compression mechanism being located adjacent a second end of the rotor. The compression mechanisms are operatively associated with the rotor such that rotation of the rotor drives the compression mechanisms. A fluid flow path is defined in the compressor including a plurality of longitudinal bores formed in the stationary shaft. A mounting assembly is attached to the housing so as to mount the compressor in either a substantially horizontal or vertical orientation. The pump is positioned so as to be at least partially immersed in an oil sump in the housing when the compressor in either orientation.

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1. A hermetic rotary compressor, comprising:a housing; a stationary shaft fixedly mounted in said housing; a motor mounted in said housing, said motor having a rotor and a stator, said rotor having a first and second end and being rotatably mounted on said shaft; and first and second rotary compress

1. A hermetic rotary compressor, comprising:a housing; a stationary shaft fixedly mounted in said housing; a motor mounted in said housing, said motor having a rotor and a stator, said rotor having a first and second end and being rotatably mounted on said shaft; and first and second rotary compression mechanisms rotatably mounted on said shaft, each of said first and second rotary compressions mechanisms including a roller, a cylinder and a vane operably coupling said roller and said cylinder, said first compression mechanism located adjacent said first end of said rotor, and said second compression mechanism located adjacent said second end of said rotor, said compression mechanisms operatively engaged with said rotor, whereby rotation of said rotor drives said compression mechanisms about said stationary shaft. 2. The rotary compressor of claim 1, wherein said housing includes a main body portion and a pair of end caps fixedly secured to opposite ends of said main body portion, said stationary shaft having two ends, each of said shaft ends mounted in one of said end caps.3. A hermetic rotary compressor, comprising:a housing; a stationary shaft fixedly mounted in said housing; a motor mounted in said housing, said motor having a rotor and a stator, said rotor having a first and second end and being rotatably mounted on said shaft; first and second compression mechanisms rotatably mounted on said shaft, said first compression mechanism located adjacent said first end of said rotor, and said second compression mechanism located adjacent said second end of said rotor, said compression mechanisms operatively engaged with said rotor, whereby rotation of said rotor drives said compression mechanisms about said stationary shaft; and two eccentrics integrally formed on said stationary shaft, said first and second compression mechanisms each containing a said eccentric, each said compression mechanism having a compression chamber, the volume of which being varied with the angular position of said compression mechanism relative to its said eccentric. 4. The rotary compressor of claim 3, wherein said compression mechanisms each include a head having a flange portion and a projection, said rotor fixedly secured to said projections, whereby a head and rotor assembly is formed, said heads and rotor assembly rotatably mounted about said stationary shaft.5. The rotary compressor of claim 4, wherein said compression mechanisms each include a roller journaled on its respective said shaft eccentric and a cylinder block rotatably mounted about said roller, said roller having a vane integrally formed therewith engaging said cylinder block, said roller and said cylinder block located adjacent said head.6. The rotary compressor of claim 4, wherein each said compression mechanism further includes an outboard bearing, said outboard bearing rotatably mounted on said stationary shaft adjacent said roller and said cylinder block, said outboard bearing, said cylinder block, and said head secured to one another via a fastener.7. The rotary compressor of claim 6, further comprising a thrust bearing mounted at one end of said stationary shaft, one of said outboard bearings being biased into engagement with said thrust bearing.8. The rotary compressor of claim 6, further comprising an oil pump mounted at one end of said stationary shaft, and a thrust bearing in contact with one of said outboard bearings and said oil pump.9. The rotary compressor of claim 4, further comprising a reservoir defined between said head and rotor assembly and said stationary shaft, said reservoir having oil stored therein, said stored oil being available to lubricate said compressor assembly immediately upon compressor startup.10. A hermetic rotary compressor, comprising:a housing; a stationary shaft fixedly mounted in said housing and having first and second ends; a motor mounted in a motor chamber defined in said housing, said motor having a stator and a rotor, said rotor having opposite ends and rotatably mounted about said stationary shaft; a first and a second stage compression mechanism, said compression mechanisms fixed to opposite ends of said rotor; a first longitudinal bore extending from said first end of said stationary shaft to said first stage compression mechanism, said first longitudinal bore in fluid communication with said first stage compression mechanism via a first radial passage; and a second radial passage extending between said first stage compression mechanism and a second longitudinal bore formed in said stationary shaft, said second longitudinal bore having a discharge port in fluid communication said motor chamber; said motor chamber and said second stage compression mechanism in fluid communication, said second stage compression mechanism in fluid communication with a third longitudinal bore formed in said stationary shaft via a third radial passage, said third longitudinal bore extending from said second stage compression mechanism to said second end of said stationary shaft, compressed refrigerant exhausted from said compressor through said stationary shaft second end. 11. The rotary compressor of claim 10, further comprising a first and second cavity defined by said first end of said stationary shaft and said housing, said first and second cavities in fluid communication with said first and third longitudinal extending bores, respectively.12. The rotary compressor of claim 10, further comprising an outboard bearing located adjacent said second stage compression mechanism, said motor chamber and said second stage compression mechanism in fluid communication via a passage extending through said outboard bearing.13. The rotary compressor of claim 10, wherein said first stage compression mechanism further includes a cylinder block and a roller, said roller having a vane integrally formed therewith, said vane engaging said cylinder block, said first radial passage located adjacent a first side of said vane, and said second radial passage located adjacent a second side of said vane.14. The rotary compressor of claim 10, wherein said refrigerant gas entering said first stage compression mechanism is at a first, suction pressure and said refrigerant gas exhausted from said first stage compression mechanism is at a second, intermediate pressure.15. The rotary compressor of claim 14, wherein said intermediate pressure refrigerant gas enters said motor chamber, said motor being cooled by said intermediate pressure gas.16. The rotary compressor of claim 15, further comprising a unit cooler, said intermediate pressure gas being cooled in said unit cooler before entering said motor chamber.17. The rotary compressor of claim 15, wherein said intermediate pressure is drawn into said second stage compression mechanism, said intermediate pressure gas being compressed to a third, discharge pressure in said second stage compression mechanism.18. The rotary compressor of claim 10, further comprising an annular seal located between said stationary shaft and said housing, whereby fluid leakage between said stationary shaft and said housing is prevented.19. A hermetic rotary compressor, comprising:a housing having an outer surface; an oil sump defined in said housing; a stationary shaft fixedly mounted in said housing; a motor mounted in said housing, said motor having a stator and a rotor, said rotor rotatably mounted about said shaft; first and second compression mechanisms rotatably mounted at opposite ends of said rotor and operatively engaged with said rotor; and a mounting plate attached to said outer surface of said housing, said compressor mounted in one of a substantially horizontal and vertical orientation. 20. The rotary compressor of claim 19, wherein said mounting plate further includes a base having a plurality of extension legs extending therefrom.21. The rotary compressor of claim 20, wherein said extension legs are provided with at least one aperture for mounting said compressor.22. The rotary compressor of claim 20, wherein said base is provided with an opening therein, said opening exposing a portion of said outer surface of said housing.23. The rotary compressor of claim 19, wherein said mounting plate is mounted to said housing by projection welding.24. The rotary compressor of claim 19, further compressing an oil pump mounted to said stationary shaft such that in each of said substantially horizontal and vertical orientations, said oil pump is at least partially submersed in said oil sump.