초록 ▼

A scroll-type compressor is disclosed which includes both a high pressure lubricant sump and a low pressure lubricant sump. Lubricant from the low pressure lubricant sump is supplied to the various bearing, thrust surfaces and other moving parts to lubricate same and a portion thereof is also suppli

A scroll-type compressor is disclosed which includes both a high pressure lubricant sump and a low pressure lubricant sump. Lubricant from the low pressure lubricant sump is supplied to the various bearing, thrust surfaces and other moving parts to lubricate same and a portion thereof is also supplied to the suction gas entering the compressor to replenish the lubricant in the high pressure sump. An oil separator is disposed in a discharge chamber to separate entrained oil from the compressed gas. A level control assembly is also provided in the discharge chamber and serves to return excessive accumulations of oil from the high pressure sump to the low pressure sump. In one embodiment, the compressor is specifically designed for compression of helium while in a second embodiment, the compressor is adapted for use as an air compressor.

대표청구항 ▼

[ We claim:] [33.] A compressor comprising:an enclosed shell;a compressing mechanism disposed within said shell;a low pressure lubricant sump in said shell;a high pressure lubricant sump in said shell;a lubricant flowpath for supplying oil from said high pressure sump to said compressing mechanism w

[ We claim:] [33.] A compressor comprising:an enclosed shell;a compressing mechanism disposed within said shell;a low pressure lubricant sump in said shell;a high pressure lubricant sump in said shell;a lubricant flowpath for supplying oil from said high pressure sump to said compressing mechanism without circulating said oil through said low pressure sump; anda level control assembly for directing accumulations of lubricant maintained in said high pressure sump above a predetermined level to said low pressure sump.