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Patent Searching and Data


Title:
FLOW PATH SWITCHING VALVE
Document Type and Number:
WIPO Patent Application WO/2020/110841
Kind Code:
A1
Abstract:
A flow path switching valve is provided which, by decreasing the pressure load and avoiding deformation of a high pressure-side slide-type valve body, can suppress seal surface distortion and prevent valve leakage, and which improves efficiency of a heat pump-type heating and cooling system. In this flow path switching valve (1), a low pressure-side slide valve body (15B) fits slidably on the outside of a cylindrical high pressure-side slide valve body (15A). Between the high pressure-side slide valve body (15A) and the low pressure-side slide valve body (15B), an O ring (18) is provided which is an annular seal member.

Inventors:
KIBUNE HITOSHI (JP)
GOTO SATOSHI (JP)
FUJITA NAOTAKA (JP)
Application Number:
PCT/JP2019/045333
Publication Date:
June 04, 2020
Filing Date:
November 19, 2019
Export Citation:
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Assignee:
FUJIKOKI CORP (JP)
International Classes:
F16K11/065; F25B41/04
Foreign References:
JP2018044666A2018-03-22
JP2009109063A2009-05-21
CN102954243A2013-03-06
JP2016114133A2016-06-23
JPS6078175A1985-05-02
JP2019065895A2019-04-25
JPH08170864A1996-07-02
JP2018044666A2018-03-22
Other References:
See also references of EP 3889479A4
Attorney, Agent or Firm:
KIUCHI, Mitsuharu et al. (JP)
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