Scroll machine with discharge passage through orbiting scroll pl

Details Scroll machine with discharge passage through orbiting scroll pl Scroll machine with discharge passage through orbiting scroll pl

1984-02-21

1985-11-12

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 97, 418188, 418DIG1, 417369, F04C 1804, F04C 2902

Patent

active

045525188

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 stationary 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 disposed 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 surface 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.

REFERENCES:
patent: 1376291 (1921-04-01), Rolkerr
patent: 4314796 (1982-02-01), Terauchi
patent: 4365941 (1982-12-01), Tojo et al.
patent: 4389171 (1983-06-01), Eber et al.
patent: 4457676 (1984-07-01), Hiraga
patent: 4487560 (1984-12-01), Uchikawa et al.

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