Title:
COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2021/039613
Kind Code:
A1
Abstract:
[Problem] To return oil to a crank chamber via a simple configuration in a variable-capacity compressor. [Solution] In a variable-capacity compressor 100, a rotating member 180 secured to one end of a drive shaft 110 is accommodated in an accommodation chamber 101b1 formed in a cylinder block 101. A discharge passage 146, through which a crank chamber 140 and a suction chamber 141 communicate, includes a shaft-interior passage 146a, an internal space 146b of the rotating member 180 that communicates with the shaft-interior passage 146a, and a throttling passage 146c for allowing communication between the internal space 146b and the suction chamber 141. An oil return passage 147, which allows communication between the internal space 146b and an annular area 145b2 surrounding the rotating member 180, includes a gap δ between the rotating member 180 and an interposed member 160. The annular area 145b2 constitutes part of a crank-chamber-side passage 145b between a control valve 200 and the crank chamber 140 in a supply passage 145 through which an ejection chamber 142 and the crank chamber 140 communicate.
Inventors:
TAGUCHI YUKIHIKO (JP)
Application Number:
PCT/JP2020/031557
Publication Date:
March 04, 2021
Filing Date:
August 21, 2020
Export Citation:
Assignee:
SANDEN AUTOMOTIVE COMPONENTS CORP (JP)
International Classes:
F04B27/12; F04B27/18; F04B39/02
Foreign References:
| JP2002213350A | 2002-07-31 | |||
| JP2015148202A | 2015-08-20 | |||
| JP2013117185A | 2013-06-13 |
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