Title:
CHECK VALVE
Document Type and Number:
Japanese Patent JP3394928
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a check valve causing no noise due to the vibration.
SOLUTION: Generation of vibration when opening a valve can be prevented by giving the moving resistance by the work of an air damper to a valve element. Considering this point of a check valve, a valve element energized for movement to a valve seat side by a spring means is provided with a cylinder part with bottom to be fitted in a guide cylinder with bottom, which is positioned in a fluid passage, freely to be slid so as to form a pressure chamber.
Inventors:
Takashi Ejiri
Application Number:
JP27992299A
Publication Date:
April 07, 2003
Filing Date:
September 30, 1999
Export Citation:
Assignee:
Fujikura Rubber Industry Co., Ltd.
International Classes:
F16K15/06; F16K47/02; (IPC1-7): F16K15/06; F16K47/02
Domestic Patent References:
JP7224956A | ||||
JP972442A | ||||
JP63153076U |
Attorney, Agent or Firm:
Kunio Miura