Title:
SCROLL-TYPE FLUID MACHINE
Document Type and Number:
WIPO Patent Application WO/2023/106116
Kind Code:
A1
Abstract:
[Problem] To suppress the inclination of the axis of an eccentric bush with respect to the axis of a drive shaft in a scroll-type fluid machine. [Solution] Planar engagement parts 218D and 224C are respectively formed in a part of an outer peripheral surface of a drive shaft 218 that transmits a rotational driving force to revolve an orbiting scroll via a pivot member, and in a part of an inner peripheral surface of a cylindrical part 224A of an eccentric bush 224 that is supported so as to be at least partially displaceable in a circumferential direction with respect to an inner peripheral surface of the pivot member, and that has an inner diameter larger than the diameter of the drive shaft 218, the planar engagement parts 218D and 224C providing guides that receive a compressive reaction force of the orbiting scroll to move the orbiting scroll in an orbiting radius direction. Further, a pin 228 extends through the eccentric bush 224 and the drive shaft 218 in parallel with the planar engagement parts 218D and 224C to restrict the inclination of the axis of the eccentric bush 224 with respect to the axis of the drive shaft 218.
Inventors:
IIZUKA JIRO (JP)
Application Number:
PCT/JP2022/043441
Publication Date:
June 15, 2023
Filing Date:
November 25, 2022
Export Citation:
Assignee:
SANDEN CORP (JP)
International Classes:
F04C18/02
Domestic Patent References:
| WO2012117600A1 | 2012-09-07 | |||
| WO2017138098A1 | 2017-08-17 |
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