Title:
スプールバルブ
Document Type and Number:
Japanese Patent JP6991890
Kind Code:
B2
Abstract:
To provide a spool valve which can prevent a fluid from leaking from a feed back groove through a gap between an outer peripheral surface of a sleeve and an inner peripheral surface of a housing.SOLUTION: In a spool valve 1, a spool 22 is disposed within a sleeve 21 formed with an input port 24, an outlet port 25, and a feed back port 28 so as to be movable in a longitudinal direction and the output port 25 and the feed back port 28 communicate with each other in a state where the sleeve 21 is attached to an attachment hole 8a of a housing 8. A feed back groove 10 allowing communication between the output port 25 and the feedback port 28 and forming at least a part of a spiral is formed at an outer periphery of the sleeve 21.SELECTED DRAWING: Figure 3
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Inventors:
Naomi Nishimura
Satoshi Kawato
Satoshi Kawato
Application Number:
JP2018031288A
Publication Date:
January 13, 2022
Filing Date:
February 23, 2018
Export Citation:
Assignee:
Eagle Industry Co., Ltd.
International Classes:
F16K31/06; F16K11/07
Domestic Patent References:
| JP2014185748A | ||||
| JP2005030502A | ||||
| JP2006046640A | ||||
| JP2007278077A | ||||
| JP59149142A |
Foreign References:
| WO2016104390A1 |
Attorney, Agent or Firm:
Kazuo Shigenobu
Ryoichi Mizobuchi
Yoshifumi Ishikawa
Hideki Akiba
Katata Taeko
Michihiro Hayashi
Ryoichi Mizobuchi
Yoshifumi Ishikawa
Hideki Akiba
Katata Taeko
Michihiro Hayashi