Title:
逆止弁
Document Type and Number:
Japanese Patent JP7133332
Kind Code:
B2
Abstract:
There is provided a check valve capable of effectively suppressing the generation of chattering. The check valve includes: a housing including an inlet channel, a valve chest, and an outlet channel; a seat member provided around the inlet channel, the seat member including a seat portion; a valve element pressed against the seat portion to close the inlet channel; a biasing member configured to push the valve element toward a valve seat; a guide portion provided at the housing and configured to guide the valve element when the valve element moves in an axial direction; and a damper chamber communicating with the valve chest through a space between the valve element and the guide portion, the damper chamber being configured to attenuate axial moving force of the valve element. The biasing member is arranged in the valve chest.
Inventors:
Yoshiki Kato
Norio Nakamura
Hirohiro Kato
Toshinobu Sakata
Kiyose Hiroaki
Norio Nakamura
Hirohiro Kato
Toshinobu Sakata
Kiyose Hiroaki
Application Number:
JP2018060514A
Publication Date:
September 08, 2022
Filing Date:
March 27, 2018
Export Citation:
Assignee:
Kawasaki Heavy Industries, Ltd.
International Classes:
F16K15/06; F16K47/02
Domestic Patent References:
| JP11325285A | ||||
| JP36015336B1 | ||||
| JP50028031A | ||||
| JP51017828U | ||||
| JP2015021609A | ||||
| JP2015021608A | ||||
| JP2012077906A | ||||
| JP2012007639A | ||||
| JP2008121721A | ||||
| JP2014074436A | ||||
| JP2012140865A |
Foreign References:
| US4413688 | ||||
| US1691449 | ||||
| US3595265 | ||||
| CN102072146A | ||||
| CN204025792U |
Attorney, Agent or Firm:
Aiko Patent Office, a patent business corporation