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Patent Searching and Data


Title:
CONTROL VALVE FOR VARIABLE DISPLACEMENT COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2019/146388
Kind Code:
A1
Abstract:
Provided is a control valve for a variable displacement compressor in which the effect of refrigerant pressure exerted on a main valve body can be canceled without increasing the build size of the main valve body. A main valve body 10 is provided with an intake pressure passage 14 for guiding intake pressure Ps exerted on an upper end part of the main valve body 10 to a Ps entry chamber 24A provided to a lower end part of the main valve body 10, and causing the intake pressure Ps to be exerted on the lower end part of the main valve body 10. A transverse cross-sectional area Ab of a lower fitting part 10b of the main valve body 10, an effective opening area Ac of a valve orifice 22, and a transverse cross-sectional area Ad of an upper fitting part 10d are set equally.

Inventors:
ASANO Hisashi (17-24 Todoroki 7-chome, Setagaya-k, Tokyo 82, 〒1580082, JP)
ITOH Masaharu (17-24 Todoroki 7-chome, Setagaya-k, Tokyo 82, 〒1580082, JP)
TANO Shintaro (17-24 Todoroki 7-chome, Setagaya-k, Tokyo 82, 〒1580082, JP)
ASANO Hirotaka (17-24 Todoroki 7-chome, Setagaya-k, Tokyo 82, 〒1580082, JP)
Application Number:
JP2019/000120
Publication Date:
August 01, 2019
Filing Date:
January 08, 2019
Export Citation:
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Assignee:
FUJIKOKI CORPORATION (17-24, Todoroki 7-chome Setagaya-k, Tokyo 82, 〒1580082, JP)
International Classes:
F04B27/18; F16K31/06
Foreign References:
JP2002303262A2002-10-18
JP2008223482A2008-09-25
Attorney, Agent or Firm:
HIRAKI & ASSOCIATES (Atago Green Hills MORI Tower 32F, 5-1 Atago 2-chome, Minato-k, Tokyo 32, 〒1056232, JP)
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