Title:
VARIABLE-CAPACITY SWASH-PLATE-TYPE COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2022/050183
Kind Code:
A1
Abstract:
[Problem] To provide a variable-capacity swash-plate-type compressor that can store, in a crank chamber, an appropriate amount of a lubricant with respect to a change in operation state of a refrigeration circuit while ensuring lubricant supply to a sliding part and that can suppress excessive emission of the lubricant to the refrigeration circuit. [Solution] A first bleed-air passage 50 that always communicates between a crank chamber 2 and a suction chamber 31 and a second bleed-air passage 60 that always communicates between the crank chamber 2 and the suction chamber 31 are provided; the first bleed-air passage 50 is made to communicate with the crank chamber 2 via a space (central-hole space 54) defined by an insertion end section of a shaft 7 in a central hole 12 that is formed at least at the center of a cylinder block 1 and into which the shaft 7 is inserted; and the second bleed-air passage 60 is made to open in an end surface 1a of the cylinder block 1 that faces a swash plate 19.
Inventors:
MORITA YUJIRO (JP)
Application Number:
PCT/JP2021/031477
Publication Date:
March 10, 2022
Filing Date:
August 27, 2021
Export Citation:
Assignee:
VALEO JAPAN CO LTD (JP)
International Classes:
F04B27/18; F04B27/12
Domestic Patent References:
| WO2015199207A1 | 2015-12-30 | |||
| WO2017002784A1 | 2017-01-05 | |||
| WO2015199207A1 | 2015-12-30 |
Foreign References:
| JP2009203888A | 2009-09-10 | |||
| JP2003343440A | 2003-12-03 | |||
| JP2001107854A | 2001-04-17 | |||
| JP2003343440A | 2003-12-03 | |||
| JP2018013851A | 2018-01-25 |
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