The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 09, 2006
Filed:
May. 27, 2004
Hideharu Hironaka, Anjo, JP;
Hideharu Hironaka, Anjo, JP;
Advics Co., Ltd., Aichi-pref., JP;
Abstract
When a plunger moves toward a side of a valve seat, an end face of a sealing member on a space side is separated from a surface of a seal housing groove, whereby a portion between a communication passage formed on an inner peripheral side of the sealing member is communicated with the space. At this time, an end face of the sealing member on a side of a damper chamber contacts the surface of the seal housing groove. However, since a part of a communication groove is communicated with the communication passage, the damper chamber is communicated with the communication passage through the communication groove. Accordingly, since the damper chamber is communicated with the space through the communication passage, a damping effect is not exerted.