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A scroll type compressor has both a high pressure lubricant sump and a low pressure lubricant sump. Lubricant from the low pressure lubricant sump is supplied to the various bearings, thrust surfaces and other moving components of the compressor. It is then rested in such a way that it can absorb he

A scroll type compressor has both a high pressure lubricant sump and a low pressure lubricant sump. Lubricant from the low pressure lubricant sump is supplied to the various bearings, thrust surfaces and other moving components of the compressor. It is then rested in such a way that it can absorb heat from the motor windings thus maintaining the operating temperature of the motor. Lubricant from the high pressure sump is supplied to the moving compression chambers defined by the scrolls at a point intermediate suction and discharge. The lubricant supplied from the high pressure sump is first cooled and then used to cool the low pressure sump prior to being supplied to the moving compression chambers. The compressed gas is routed through two lubricant separators and a gas cooler prior to being supplied for its intended use.

대표청구항 ▼

[ What is claimed is:] [1.]1. A compressor comprising:a shell defining a suction pressure zone and a discharge pressure zone;a compressing mechanism disposed within said shell, said compressing mechanism defining at least one compression chamber for compressing a gas;a low pressure lubricant sump di

[ What is claimed is:] [1.]1. A compressor comprising:a shell defining a suction pressure zone and a discharge pressure zone;a compressing mechanism disposed within said shell, said compressing mechanism defining at least one compression chamber for compressing a gas;a low pressure lubricant sump disposed within said shell;a high pressure lubricant sump disposed within said shell;a lubricant flow path for supplying lubricant from said high pressure lubricant sump to said compression chamber;a first lubricant separator disposed within said shell, said first lubricant separator being operative to separate lubricant from said compressed gas and returning said lubricant to said high pressure lubricant sump;a fluid passage extending between said discharge pressure zone and said suction pressure zone; anda device disposed within said fluid passage, said device controlling gas pressure within said discharge pressure zone by controlling fluid flow from said discharge pressure zone to said suction pressure zone through said fluid passage.