Title:
FLOW PASSAGE SWITCHING VALVE
Document Type and Number:
WIPO Patent Application WO/2020/039888
Kind Code:
A1
Abstract:
Provided is a flow passage switching valve which can achieve excellent sealing, operability, and stability, and effectively suppress valve leakage. When viewed in the left-right direction (perpendicular to an axial line), the outer shape of a pressure receiving surface (pressure receiving area Sc) on a second slide valve body (low pressure-side slide valve body) (15B)-side of a first slide valve body (high pressure-side slide valve body) (15A) is set larger than the outer shape of an annular seal surface (15s) (opposite contact area Sb thereof) of the first slide valve body (15A).
Inventors:
KIBUNE HITOSHI (JP)
FUJITA NAOTAKA (JP)
FUJITA NAOTAKA (JP)
Application Number:
PCT/JP2019/030393
Publication Date:
February 27, 2020
Filing Date:
August 02, 2019
Export Citation:
Assignee:
FUJIKOKI CORP (JP)
International Classes:
F16K11/065; F16K25/02; F25B41/04
Foreign References:
| JP2018044666A | 2018-03-22 | |||
| JPS50101921A | 1975-08-12 | |||
| JPS5114734B1 | 1976-05-12 | |||
| US4564045A | 1986-01-14 | |||
| JP2008075760A | 2008-04-03 | |||
| JP2013227994A | 2013-11-07 | |||
| JP2019065895A | 2019-04-25 | |||
| JPH08170864A | 1996-07-02 | |||
| JP2018044666A | 2018-03-22 |
Other References:
See also references of EP 3842675A4
Attorney, Agent or Firm:
HIRAKI & ASSOCIATES (JP)
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