Title:
VARIABLE-CAPACITY COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2020/004166
Kind Code:
A1
Abstract:
[Problem] To provide a variable-capacity compressor that makes it possible to curb any increase in size in a direction running along an axial direction of a drive shaft. [Solution] A variable-capacity compressor (1) where opening degree adjustment of a first control valve (9) for changing the opening degree of a supply channel (7) changes the pressure of a crankcase (30), thus adjusting the stroke of a piston (23), wherein a second control valve (10) includes: a valve chamber (100) arranged, out of a center bore (22), between one end of a drive shaft (6) and a valve plate (4), and a valve element (110) accommodated so as to be moveable along an axial direction of the drive shaft (6) to the valve chamber (100); and the valve element (110) moves between a first wall surface (101) where a first port (P1) opens and a second wall surface (102) where a second port (P2) and a third port (P3) open, in accordance with the difference between the pressure of a region between the first control valve (9) and a check valve (75) in the supply channel (7), and the pressure of the crankcase (30).
Inventors:
TAGUCHI YUKIHIKO (JP)
KIKUCHI KIYOTO (JP)
KIKUCHI KIYOTO (JP)
Application Number:
PCT/JP2019/024241
Publication Date:
January 02, 2020
Filing Date:
June 19, 2019
Export Citation:
Assignee:
SANDEN AUTOMOTIVE COMPONENTS CORP (JP)
International Classes:
F04B27/18
Foreign References:
| JP2002048059A | 2002-02-15 | |||
| JPH05231309A | 1993-09-07 | |||
| KR20140100133A | 2014-08-14 |
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