Patent Number: 6,168,402

Title: Scroll-type compressor having power transmission mechanism allowing idling

Abstract: The invention relates to a scroll-type compressor which will not exert an undesirable influence on a power source of a rotation shaft, even if seizing occurs between an orbiting scroll member and a fixed scroll member. A power transmission mechanism P is provided between a rotation shaft 7 and an eccentric drive pin 25 for transmitting power to an orbiting scroll member 14. An inner wall of a bore of a closed ended cylindrical member 40 with an eccentric drive pin 25 protruding from a base end thereof is formed in the height direction of the cylinder with a plurality of grooves 44 of semi-circular cross-section. Moreover, a cylindrical resilient roller 43 is centrally provided on the closed end with a height approximately the same as that of the closed ended cylindrical member 40. Rollers 42 are provided so as to be inscribed in each groove 44 and so as to come into contact with an outer peripheral surface of the resilient roller 43. Projections 41 provided on the rotation shaft 7 are insertingly fitted so as to fill the spaces between the rollers 42.

Inventors: Kawada; Minoru (Nishi-kasugai-gun, JP)

Assignee: Mitsubishi Heavy Industries, Ltd.

International Classification: F04C 29/00 (20060101); F16D 7/00 (20060101); F16D 7/10 (20060101); F04C 018/04 (); F04C 029/00 ()

Expiration Date: 01/02/2018