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:
Apr. 10, 2018
Filed:
Oct. 15, 2014
Bridgestone Corporation, Tokyo, JP;
Akira Ueki, Tokyo, JP;
Shingo Oono, Tokyo, JP;
Hirokazu Watai, Tokyo, JP;
Masakazu Nagasawa, Tokyo, JP;
BRIDGESTONE CORPORATION, Tokyo, JP;
Abstract
Swirl chamber units () allowing a first liquid chamber () and a second liquid chamber () to communicate with each other are formed in a partitioning member of a vibration-damping device () of the present invention. Each swirl chamber unit () includes a first communication hole () opening to the first liquid chamber (), and a second communication hole () opening to the second liquid chamber (); a first swirl chamber () communicating with the first liquid chamber () via the first communication hole (), and a second swirl chamber () communicating with the second liquid chamber () via the second communication hole (); and a flow regulation passage () that allows the first swirl chamber () and the second swirl chamber () to communicate with each other and opens to the swirl chambers () in circumferential directions of the respective swirl chambers (). The first and second swirl chambers () are formed so that a liquid flowing into the interiors of the chambers from the flow regulation passage () is swirled according to the flow speed of the liquid. By including the configuration as described above, simplification of structure and facilitation of manufacture can be achieved, while guaranteeing the product characteristics of the vibration-damping device.