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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 (JP)
ASANO HISASHI (JP)
ITOH MASAHARU (JP)
TANO SHINTARO (JP)
Application Number:
JP2018/040040
Publication Date:
May 16, 2019
Filing Date:
October 29, 2018
Export Citation:
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Assignee:
FUJIKOKI CORP (JP)
International Classes:
F04B27/18; F04B39/00; F16K31/06
Foreign References:
JP2017110540A2017-06-22
JP2016160752A2016-09-05
JPH0375359U1991-07-29
JP2010185285A2010-08-26
JP2013130126A2013-07-04
JP2011043102A2011-03-03
JP2016127978A2016-07-14
Attorney, Agent or Firm:
HIRAKI & ASSOCIATES (JP)
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