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Title:
CAPACITY CONTROL VALVE AND METHOD FOR CONTROLLING SAME
Document Type and Number:
WIPO Patent Application WO/2019/131693
Kind Code:
A1
Abstract:
[Problem] The purpose of the present invention is to provide a capacity control valve that makes it possible to efficiently discharge a liquid refrigerant regardless of the pressure in an intake chamber, and to lower the driving force of a compressor during a liquid refrigerant discharge operation. [Solution] A capacity control valve 1 comprises: a valve main body 10 having a first communication passage 11, a second communication passage 12, a third communication passage 13, and a main valve seat 15a; a valve body 20 having an intermediate communication passage 29, a main valve part 21c, and an auxiliary valve part 23d; a solenoid 30 that drives a rod 36 having an auxiliary valve seat 26c; and a first urging member 43 that urges in the direction in which the main valve part 21c closes; the spring constant of the first urging member 43 having the characteristic of being large when the main valve part 21c is open and small when the main valve part 21c is closed.

Inventors:
HAYAMA Masahiro (C/O Eagle Industry Co. Ltd, 1-12-15, Shiba-Daimon, Minato-k, Tokyo 87, 〒1058587, JP)
OGAWA Yoshihiro (C/O Eagle Industry Co. Ltd, 1-12-15, Shiba-Daimon, Minato-k, Tokyo 87, 〒1058587, JP)
SHIRAFUJI Keigo (C/O Eagle Industry Co. Ltd, 1-12-15, Shiba-Daimon, Minato-k, Tokyo 87, 〒1058587, JP)
FUKUDOME Kohei (C/O Eagle Industry Co. Ltd, 1-12-15, Shiba-Daimon, Minato-k, Tokyo 87, 〒1058587, JP)
EJIMA Takahiro (C/O Eagle Industry Co. Ltd, 1-12-15, Shiba-Daimon, Minato-k, Tokyo 87, 〒1058587, JP)
KURIHARA Daichi (C/O Eagle Industry Co. Ltd, 1-12-15, Shiba-Daimon, Minato-k, Tokyo 87, 〒1058587, JP)
TAKAHASHI Wataru (C/O Eagle Industry Co. Ltd, 1-12-15, Shiba-Daimon, Minato-k, Tokyo 87, 〒1058587, JP)
Application Number:
JP2018/047693
Publication Date:
July 04, 2019
Filing Date:
December 26, 2018
Export Citation:
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Assignee:
EAGLE INDUSTRY CO., LTD. (1-12-15, Shiba-Daimon Minato-k, Tokyo 87, 〒1058587, JP)
International Classes:
F04B27/18; F16K31/06
Foreign References:
JP2014095463A2014-05-22
JP2014080927A2014-05-08
JP2005307817A2005-11-04
Attorney, Agent or Firm:
AMASAKA Yasutane et al. (Amasaka Patent Office Level1 Yusen Bldg, 2-3-2 Marunouchi, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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