Scroll type compressor with lubrication in suction chamber housi

Details Scroll type compressor with lubrication in suction chamber housi Scroll type compressor with lubrication in suction chamber housi

1988-11-16

1990-06-12

Vrablik, John J.

Pumps

Motor driven

Including means utilizing pump fluid for augmenting cooling,...

418 55, 418 94, 418100, 418188, F04B 3902, F04C 1804, F04C 2902

Patent

active

049328450

ABSTRACT:
This invention discloses a lubricating mechanism of a hermetically sealed scroll type compressor in which an inner chamber of a housing is kept at suction pressure. The compressor includes a drive shaft supported by a first plain bearing in an inner block member. The drive shaft is operatively linked to an orbiting scroll which orbits within a stationary scroll. A rotation preventing device prevents rotation of the orbiting scroll. The drive shaft includes an axial bore extending from an open end and terminating within the inner block member. A pin extends from the end of the drive shaft to the orbital scroll and is supported in a bushing within an extension of the orbiting scroll. A second plain bearing supports the bushing. A passage links the axial bore to an opening at the end of the pin facing the orbital scroll. A radial bore is provided near the terminal end of the axial bore to link the axial bore to a suction chamber of the compressor. A first helical groove is formed in the exterior surface of the supported portion of the drive shaft. The first helical groove is linked to the axial bore through a radial hole formed through the supported portion of the drive shaft. A second helical groove is formed in the exterior surface of the bushing. Fluid flows through the radial bore and through the narrow passage to lubricate the rotation preventing device. Fluid flows through the first helical groove to lubricate the friction surface between the drive shaft and the first plain bearing. Fluid flow through the second helical groove to lubricate the surface between the bushing and the second plain bearing.

REFERENCES:
patent: 2835436 (1958-05-01), Steinhagen et al.
patent: 3317123 (1967-05-01), Funke
patent: 3833318 (1974-09-01), Nakayama et al.
patent: 3838942 (1974-10-01), Pokorny
patent: 3899271 (1975-08-01), Glanvall
patent: 3945765 (1976-03-01), Toyoda et al.
patent: 3986799 (1976-10-01), McCullough
patent: 4005948 (1977-02-01), Hiraga et al.
patent: 4065279 (1977-12-01), McCullough
patent: 4314796 (1982-02-01), Terauchi
patent: 4332535 (1982-06-01), Terauchi et al.
patent: 4340339 (1982-07-01), Hiraga et al.
patent: 4343599 (1982-08-01), Kousokabe
patent: 4365941 (1982-12-01), Tojo et al.
patent: 4396364 (1983-08-01), Tojo et al.
patent: 4527963 (1985-07-01), Terauchi
patent: 4538975 (1985-09-01), Tsukagoshi
patent: 4547138 (1985-10-01), Mabe et al.
patent: 4560330 (1985-12-01), Murayama et al.
patent: 4561832 (1985-12-01), Shimizu
patent: 4564339 (1986-01-01), Nakamura
patent: 4666381 (1987-05-01), Butterworth
patent: 4767293 (1988-08-01), Caillat et al.

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