FLOW PASSAGE SWITCHING VALVE

Title:

FLOW PASSAGE SWITCHING VALVE

Document Type and Number:

WIPO Patent Application WO/2021/054065

Kind Code:

A1

Abstract:

[Problem] To provide a flow passage switching valve capable of effectively suppressing valve leakage. [Solution] This flow passage switching valve (1) has a U-turn valve body (20) that has a first valve body part (21) and a second valve body part (22) having a square cylindrical shape. The first valve body part (21) has: a first U-turn passage (28) provided to an end surface (21a) on a first valve seat (13) side; and an annular wall part (21c) which is provided to an end surface (21b) on a second valve seat (15) side and to which a first valve seat (13)-side end section (22c) of the second valve part (22) is fitted. In addition, a second U-turn passage (29) is formed by the end surface (21b) of the first valve body part (21) and an inner circumferential surface (22e) of the second valve body part (22).

Inventors:

KIBUNE HITOSHI (JP)
MORITA NORIYUKI (JP)

Application Number:

PCT/JP2020/032102

Publication Date:

March 25, 2021

Filing Date:

August 26, 2020

Export Citation:

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Assignee:

FUJIKOKI CORP (JP)

International Classes:

F16K11/065; F25B41/26

Foreign References:

JP2019065896A	2019-04-25
JPH07324844A	1995-12-12
JP2018044666A	2018-03-22

Other References: