Scroll compressor having a baffle plate and oil passages in the

Details Scroll compressor having a baffle plate and oil passages in the Scroll compressor having a baffle plate and oil passages in the

1996-11-27

1998-09-22

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 94, 418 99, F04C 1804, F04C 2902

Patent

active

058105735

ABSTRACT:
A compression chamber of a scroll compression element driven by a crank shaft of an electromotive element and stored in an upper portion of a closed container is formed by engaging spiral wraps formed on the mirror plates of a fixed scroll member and an orbiting scroll member with each other, a bush portion having an engagement hole to be engaged with an upper end portion of the crank shaft is formed in a central axis portion of the under surface of the mirror plate of the orbiting scroll member, a space formed between the engagement hole of the bush portion and the upper end portion of the crank shaft serves as an oil input port, lubricating oil which is stored in an oil reservoir in an inner bottom portion of the closed container and goes up through an oil passage formed within the crank shaft by an oil pump unit is supplied from the oil input port into the compression chamber, oil injection communication passages communicating with the compression chamber from the oil input port are formed in the mirror plate of the orbiting scroll member, and the open ends on the compression chamber side of the oil injection communication passages are made open to positions near terminal portions of the spiral wraps for an initial-stage compression room formed in the fixed scroll member and the orbiting scroll member.

REFERENCES:
patent: 4343599 (1982-08-01), Kousokabe
patent: 4755114 (1988-07-01), Shibayashi et al.
patent: 5178527 (1993-01-01), Jung
patent: 5217359 (1993-06-01), Kawahara et al.
patent: 5342185 (1994-08-01), Anderson
patent: 5370513 (1994-12-01), Fain
patent: 5447418 (1995-09-01), Takeda et al.
Patent Abstracts of Japan, vol. 095, No. 009, 31 Oct. 1995 & JP 07 151076 A (Sanyo Electric Co Ltd), 13 Jun. 1995.

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