Title:
バルブ装置
Document Type and Number:
Japanese Patent JP4375436
Kind Code:
B2
Abstract:
A present invention is advantageously applied to a purge valve for purging evaporated fuel stored in a canister to an intake pipe of an engine. The purge valve has a fluid passage connecting an inlet port and an outlet port, and a normally closed valve port that is selectively opened by operation of an electromagnetic actuator is disposed in the fluid passage. A barrier pillar is disposed in the fluid passage between the inlet port and the valve port to suppress transmission of pulsating waves generated in the purge valve to the canister. Flow resistance of the barrier pillar is higher in a reverse flow direction from the valve port to the inlet port than in a normal flow direction from the inlet port to the valve port. The transmission of the pulsating waves is well suppressed by the barrier pillar while allowing a smooth flow from the canister into the purge valve.
Inventors:
Hideki Okuda
Application Number:
JP2007138104A
Publication Date:
December 02, 2009
Filing Date:
May 24, 2007
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F16K47/02; F02M25/08; F16K1/32; F16K27/02; F16K31/06
Domestic Patent References:
| JP3022186U | ||||
| JP8100862A | ||||
| JP11013500A | ||||
| JP2001098959A | ||||
| JP5312002A | ||||
| JP8121103A | ||||
| JP11210927A | ||||
| JP2002106724A | ||||
| JP2004019756A | ||||
| JP2006194338A | ||||
| JP4018769U |
Attorney, Agent or Firm:
Kenji Ishiguro