Scroll-type machine having a bearing assembly for the drive shaf

Details Scroll-type machine having a bearing assembly for the drive shaf Scroll-type machine having a bearing assembly for the drive shaf

1998-06-04

1999-08-03

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 553, 418 555, 418 556, 418 57, 418 88, 418 94, F04C 1804, F04C 2902

Patent

active

059316497

ABSTRACT:
A scroll type machine particularly suited for use as a refrigeration compressor is disclosed which includes a bearing assembly for non-adjustably rotatably supporting a drive shaft. The bearing assembly is in turn non-adjustably supported on the sidewall of an outer shell. The scroll type machine also includes an oil delivery system for delivering lubricating oil from a lower sump to an upper end of the crankshaft and an oil return hole in a fixed portion of the compressor for returning oil to the sump.

REFERENCES:
patent: 2286272 (1942-06-01), Higham
patent: 2344028 (1944-03-01), Curry
patent: 4431388 (1984-02-01), Eber et al.
patent: 4609334 (1986-09-01), Muir et al.
patent: 4637786 (1987-01-01), Matoba et al.
patent: 4696630 (1987-09-01), Sakata et al.

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