F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
230/37, 230/89
F04D 17/06 (2006.01) F04C 18/02 (2006.01) F04C 23/00 (2006.01) F04C 29/02 (2006.01)
Patent
CA 1222733
Title SCROLL MACHINE WITH DISCHARGE PASSAGE THROUGH ORBITING SCROLL PLATE AND ASSOCIATED LUBRICATION SYSTEM Inventor Robert E. Utter Abstract A scroll compressor enclosed in a hermetic shell, wherein part of the volume enclosed by the shell is at suction pressure and part is at discharge pressure. The compressor includes both a sta- tionary and a driven scroll plate, with intermeshed involute wrap elements attached to the plates for defining pockets in which fluid is compressed as a drive shaft connected to the driven plate causes it to orbit relative to the stationary scroll plate. A passage dis- posed within the driven plate and adjacent its axial center conveys compressed fluid through the plate and into a cavity formed in the end of the drive shaft. Oil entrained in the compressed fluid is thrown radially outward within the cavity, due to centrifugal force, and is thereby separated from the compressed fluid. The oil then flows through an adjacent bearing, and is thrown radially outward, creating a spray that impinges on a seal which abuts the back sur- face of the driven scroll plate. A drive shaft bearing also receives lubrication as the oil flows back into the reservoir at the bottom of the shell.
471843
American Standard International Inc.
Fetherstonhaugh & Co.
Trane Canada Inc.
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