Title:
VARIABLE CAPACITY COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2018/235483
Kind Code:
A1
Abstract:
According to the present invention, the pressure in a crank chamber increases quickly in a variable capacity compressor. This variable capacity compressor has a control valve 300 configured to control the opening degree of a supply passage for supplying a refrigerant in a discharge chamber to a crank chamber and the opening degree of a discharge passage between the crank chamber and an intake chamber. In the control valve 300, a communication passage 363 for communicating a first valve hole 316 and a second valve hole 320 includes: a cylindrical first communication passage 363a between the inner peripheral surface of a through-hole 364 of a sub valve body 362 of a sub valve body unit 360 and the outer peripheral surface of a main valve body unit 350; and a second communication passage 363b which extends past the outer peripheral surface side of a first sub valve part 362a of the sub valve body 362 and through which a first region S1, serving as a back pressure region, and the first communication passage 363a communicate with each other.
Inventors:
TAGUCHI YUKIHIKO (JP)
Application Number:
PCT/JP2018/019428
Publication Date:
December 27, 2018
Filing Date:
May 15, 2018
Export Citation:
Assignee:
SANDEN AUTOMOTIVE COMPONENTS CORP (JP)
International Classes:
F04B27/18; F16K1/44; F16K11/10
Foreign References:
| JPH06346843A | 1994-12-20 | |||
| JP2004346880A | 2004-12-09 | |||
| JP2002021721A | 2002-01-23 |
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