SCROLL-TYPE FLUID MACHINE

摘要

PROBLEM TO BE SOLVED: To reduce intrusion of abrasion powders, generated by sliding of a conduction means causing an orbiting scroll side and a fixed scroll side to be connected, into a compression chamber, and to improve reliability of a compressor.

SOLUTION: This machine includes: a casing 2 having a flange surface; the fixed scroll 3 having a wrap portion 3B on an end plate 3A; the orbiting scroll 4 having a wrap portion 4B on an end plate 4A and provided to be rotatable while opposing to the fixed scroll 3; a driving shaft 8 coupled with the orbiting scroll 4 via a crank part 9 to rotate; an orbiting bearing 11 for supporting the driving shaft 8 against the orbiting scroll 4; a face seal part 23 disposed between the orbiting scroll 4 and the fixed scroll 3; a cooling fan 28 for supplying cooling air into the casing 2; and an orbiting scroll side conductive brush 24A making the orbiting scroll 4 communicating with the casing 2. A sliding surface of the orbiting scroll side conductive brush 24A is disposed at a position except where the cooling air from the cooling fan is supplied to the face seal part 23.

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