Title:
パイロットチェック弁
Document Type and Number:
Japanese Patent JP7307605
Kind Code:
B2
Abstract:
To achieve downsizing of a pilot check valve.SOLUTION: A pilot check valve 100 includes: a ball member 30 which switches communication between a first pressure guide port 11 and a second pressure guide port 12; a sleeve 41 stored in a pilot storage hole 15 formed at a valve body 10; a cover 50 which closes an opening of the pilot storage hole 15 on an end surface 10b of the valve body 10; a pilot piston 45 which is slidably inserted into the sleeve 41 and receives a pilot pressure guided by a pilot pressure chamber 40a to move the ball member 30 against biasing force of a spring 31; and a communication passage 40b which is formed between an inner periphery of the pilot storage hole 15 of the valve body 10 and an outer periphery of the sleeve 41 and guides the pilot pressure supplied from the pilot port 13 to the pilot pressure chamber 40a.SELECTED DRAWING: Figure 2
Inventors:
Yoshihiko Kohno
Yoshikatsu Tsujii
Yuki Tsujita
Yoshikatsu Tsujii
Yuki Tsujita
Application Number:
JP2019116652A
Publication Date:
July 12, 2023
Filing Date:
June 24, 2019
Export Citation:
Assignee:
Takako Co., Ltd.
International Classes:
F16K15/18
Domestic Patent References:
| JP4025602A | ||||
| JP2016173155A | ||||
| JP2008002570A |
Attorney, Agent or Firm:
Patent Attorney Corporation Goto Patent Office
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