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Patent Searching and Data


Title:
CONTROL VALVE FOR VARIABLE DISPLACEMENT COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2019/093166
Kind Code:
A1
Abstract:
Provided is a control valve for a variable displacement compressor, wherein the control valve can effectively suppress the increase in sliding resistance and the accompanying deterioration of control characteristics, while preventing the entry of foreign matters into a sliding surface gap (clearance) that is formed between a main valve body and a guide hole. Provided also is a control valve for a variable displacement compressor, wherein the control valve can ensure a stable sealing property regardless of a dimensional error of component parts. In the control valve, a plate-shaped ring member 20E is interposed between a guide hole 19 and a main valve body 10. In the plate-shaped ring member 20E, a tubular portion 20Eb is formed in a tubular shape in a state where the inner end of the plate-shaped ring member 20E is curved, and the tubular portion 20Eb is brought into sliding contact with the outer wall of the main valve body 10 to seal a space between a valve chamber 21 and a pressure-sensing chamber 45.

Inventors:
KUME Yoshiyuki (17-24 Todoroki 7-chome, Setagaya-k, Tokyo 82, 〒1580082, JP)
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)
Application Number:
JP2018/040040
Publication Date:
May 16, 2019
Filing Date:
October 29, 2018
Export Citation:
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Assignee:
FUJIKOKI CORPORATION (17-24, Todoroki 7-chome Setagaya-k, Tokyo 82, 〒1580082, JP)
International Classes:
F04B27/18; F04B39/00; F16K31/06
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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