scroll compressor

Abstract

In the scroll compressor of the present invention, the amount of oil supplied to the outer line side compression chamber and the inner line side compression chamber of the orbiting scroll wrap can be rationalized without impairing the strength of the wrap. The scroll compressor forms a suction chamber and a compression chamber between the fixed scroll and the orbiting scroll, and has a back pressure chamber on the back of the orbiting scroll platen, and is formed in an asymmetric tooth shape. A fluid outflow path for the outer line side compression chamber of the orbiting scroll wrap and a fluid outflow path for the inner line side compression chamber are formed on the orbiting scroll platen, and the outlet side openings of each fluid outflow path open to the tooth bottom of the orbiting wrap. The inlet side openings of each fluid outflow path are opened to the orbiting scroll table surface that slides with the fixed scroll, and a groove is formed on the fixed scroll table surface so that the inlet side openings of each fluid outflow path and the back pressure chamber follow the orbiting motion. Intermittently communicated communication section control tank. The communication section control groove is formed so that the pressures in the respective compression chambers at the start and end of the communication between the two compression chambers on the outer line side and the inner line side and the back pressure chamber are the same.

Description

Technical field [0001] The present invention relates to a scroll compressor used as a refrigerant compressor for refrigeration and air conditioning, or a gas compressor for air or the like. In detail, it relates to a compression chamber formed on the outer side of a orbiting scroll coil and forming A scroll compressor of an asymmetric tooth profile with a different swirl angle at the end of suction of the compression chamber on the inner side of the orbiting scroll wrap. Background technique [0002] As such a scroll compressor, there is a structure described in, for example, JP 2010-203327 A (Patent Document 1). The structure of Patent Document 1 discloses the following structure: an oil supply hole is formed on the upper surface of at least one of the orbiting scroll coil and the fixed scroll coil, and the upper surface of the coil on which the oil supply hole is formed There are formed a first oil supply passage connecting the opening of the oil supply hole with the first com...

AI Technical Summary

Problems solved by technology

However, in such a case, in order to communicate with the compression chamber where the back pressure of the back pressure chamber becomes the target pressure, since the orbiting angle is different between the outer line side compression chamber and the inner line side compression chamber of the orbiting scroll wrap, it can only be connected with One of the outer line-side compression chambers and the inner line-side compression chambers communicates, and there is a problem that the oil supply to the compression chambers that are not in communication with the oil supply hole becomes insufficient.

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