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:
Nov. 05, 2013
Filed:
Feb. 18, 2010
Hiroyuki Ichikawa, Kani, JP;
Yuichi Ogawa, Kasugai, JP;
Naoki Furumachi, Kasugai, JP;
Katsuhiro Sakurai, Nagoya, JP;
Nobuya Yoshida, Toyota, JP;
Hiroyuki Ichikawa, Kani, JP;
Yuichi Ogawa, Kasugai, JP;
Naoki Furumachi, Kasugai, JP;
Katsuhiro Sakurai, Nagoya, JP;
Nobuya Yoshida, Toyota, JP;
Tokai Rubber Industries, Ltd., Komaki, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A fluid-filled vibration damping device including: a pressure-receiving chamber and an equilibrium chamber disposed on either side of a partition plate, while being connected through a first orifice passage; a moveable film arranged to either a pressure-receiving chamber side or an equilibrium chamber side of the partition plate while being spaced away therefrom to define therebetween an intermediate chamber; a second orifice passage connecting the intermediate chamber and one of the pressure-receiving and the equilibrium chambers while being tuned to higher frequency than the first orifice passage; and a flow straightening plate arranged in opposition to the moveable film at least at one of the intermediate chamber side and an opposite side thereof, the flow straightening plate having a plurality of flow straightening apertures opening towards the moveable film and furnished with a flow limiting member.