Title:
VARIABLE CAPACITY COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2016/088737
Kind Code:
A1
Abstract:
[Problem] To provide a variable capacity compressor which is capable of inhibiting leakage of a refrigerant that flows out directly to an intake chamber without passing through a crank chamber during operation at minimum discharge capacity, is capable of inhibiting increases in the minimum discharge capacity as a result of increases in the refrigerant pressure in the crank chamber, and is capable of inhibiting lubrication deficiency of sliding parts or the like in the crank chamber. [Solution] A pressure release passage (320) is formed in a first control valve which controls the opening amount of a pressure supply passage connecting a discharge chamber and a crank chamber. The pressure release passage (320) sequentially passes through a first pressure-sensitive chamber (302), a communication hole (306a) of a coupling part (306), a communication hole (304a) connecting the coupling part (306) and the inside of a valve body (304), a helical groove (309a) formed in a solenoid rod (309) section press-fitted into the valve body, and a second pressure-sensitive chamber (307), communicates with an intake chamber (141), and releases, into the intake chamber (141), refrigerant in a pressure-supply-passage area located downstream with respect to the first control valve. An opening/closing means, which closes the pressure release passage (320) when the first control valve is open, is formed from the valve body (304) and a fixed core (310), which come into contact with each other when the first control valve is in a fully open state.
Inventors:
TAGUCHI YUKIHIKO (JP)
Application Number:
PCT/JP2015/083694
Publication Date:
June 09, 2016
Filing Date:
December 01, 2015
Export Citation:
Assignee:
SANDEN HOLDINGS CORP (JP)
International Classes:
F04B27/18
Foreign References:
| JP2010106677A | 2010-05-13 | |||
| JP2011185138A | 2011-09-22 | |||
| JP2004003468A | 2004-01-08 |
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