Title:
SCROLL TYPE FLUID MACHINERY
Document Type and Number:
Japanese Patent JP3214417
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent the uneven wear of a sliding bearing even when a slide bush is inclined by forming the sliding surface of either one of a cylindrical member and a bearing part constituting a sliding part with the bearing part of a movable scroll into a crowning form protruded to the other sliding surface side.
SOLUTION: A movable scroll 3 to which the rotating force of a roller 10 by a motor M is transmitted through the eccentric part 2a of a crank shaft 2 is rotated around it by an Oldham's coupling 6. The crank shaft 2 has a collar part 2b and an eccentric part 2a on the upper end part, and a slide bush 1 with balance weight is loosely fitted to the eccentric part 2a. In operation, a moment is generated in the slide bush 1 by the force added from each part, and the slide bush 1 is inclined to a sliding bearing 5. When the outer circumferential surface of the slide bush 1 has a crowning form, the end part of the sliding bearing 5 never make uneven contact with the outer circumferential surface of the cylinder part 1a of the slide bush 1 even if the slide bush 1 is inclined, and the uneven wear thereof can be prevented.
Inventors:
Keiji Yoshimura
Toshiaki Yoshii
Takashi Kamikawa
Toshiaki Yoshii
Takashi Kamikawa
Application Number:
JP30815297A
Publication Date:
October 02, 2001
Filing Date:
November 11, 1997
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
F04C29/00; F04C18/02; (IPC1-7): F04C18/02
Domestic Patent References:
| JP9195956A | ||||
| JP9177685A | ||||
| JP62143001U |
Attorney, Agent or Firm:
Fukami Hisaro (3 outside)
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