Patent ID: 7946831
Filing Date: 2011-05-24
Classification: F04C,Y10S

Abstract:
1. A compressor for refrigerant comprising: an outer casing, a scroll compressor disposed in the outer casing and has a first compressor body disposed in a fixed position in the outer casing and a second compressor body that can move relative to the first compressor body, wherein the first and second compressor bodies have first and second bases, respectively, the first and second compressor bodies having first and second scroll fins, respectively, which project from the respective base and engage into one another in such a way that to compress the refrigerant the second compressor body is movable with respect to the first compressor body on an orbital path about a center axis, a drive unit disposed in the outer casing for the second compressor body and having an eccentric drive, a drive shaft running in lying arrangement in the outer casing, a drive motor including a stator and a rotor seated on the drive shaft, a lubricant supply, the lubricant supply having a delivery wheel which delivers lubricant from a delivery sump into a feed space for the drive shaft, a lubricant collection space disposed in the outer casing, a lubricant delivery space accommodating the delivery sump, wherein a lower pressure prevailing in the lubricant delivery space is kept below a pressure in the lubricant collection space due to a connection passage between the lubricant delivery space and a suction space of the scroll compressor, wherein the lubricant which collects in the lubricant collection space on account of the pressure difference, passes into the delivery sump; wherein a lower static pressure prevails in the suction space of the scroll compressor than in the lubricant collection space, wherein a connecting line defines the connection passage and leads from the suction space of the scroll compressor to the lubricant delivery space wherein the connecting line is directed through a lubricant separation space.