F - Mech Eng,Light,Heat,Weapons – 04 – C
Patent
F - Mech Eng,Light,Heat,Weapons
04
C
230/39, 230/89
F04C 29/02 (2006.01) F04C 2/02 (2006.01) F04C 27/00 (2006.01)
Patent
CA 1156627
ABSTRACT OF THE DISCLOSURE A rotary compressor is provided with annular oil traps between rotor bearings and the working chamber at the intake and discharge end thereof. The traps are maintained under low pressure generally equal to the intake pressure of the compressor The oil traps communicate with a point near the intake of the compressor, whereby any trapped oil can be returned, either directly or through a storage container, to the lubricating oil feeding system. The discharge of the compressor is provided with a pressurized separator in which the oil carried through the compressor by the compressed gas is trapped and returned back to the lubricating system. The advance in the art is in that only short and relatively inefficient packing of the shaft will suffice because any oil leaking through the shaft bearings is safely recirculated.
365870
Ghh Rand Schraubenkompressoren Gmbh & Co. Kg
Gowling Lafleur Henderson Llp
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