Scroll-type compressor having fastening bolts for the fixed scro

Details Scroll-type compressor having fastening bolts for the fixed scro Scroll-type compressor having fastening bolts for the fixed scro

1995-07-17

1997-02-04

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

29888022, F04C 1804

Patent

active

055991785

ABSTRACT:
There is provided a scroll-type compressor in which a scroll-type compressing mechanism comprising a fixed scroll and an orbiting scroll, a motor, and a frame to which a main bearing is mounted to rotatably support a motor rotating shaft for driving the orbiting scroll are disposed in an enclosed housing composed of a plurality of housing members fastened by bolts, and the interior of the enclosed housing is divided into a high-pressure chamber and a low-pressure chamber by an end plate of the fixed scroll. The fixed scroll is fastened to the frame by making a plurality of holes passing through the frame in the frame, by inserting bolts into the holes from the side of the low-pressure chamber, and by screwing the bolts into the fixed scroll. Thereby, an adverse effect of thermal deformation or pressure deformation of the enclosed housing on a scroll-type compressing mechanism can be averted.

REFERENCES:
patent: 4744737 (1988-05-01), Yamamura et al.
patent: 5312234 (1994-05-01), Yoshii

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