Invention Grant
- Patent Title: Vibration-damping device
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Application No.: US15311065Application Date: 2015-03-13
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Publication No.: US09951842B2Publication Date: 2018-04-24
- Inventor: Akira Ueki
- Applicant: BRIDGESTONE CORPORATION
- Applicant Address: JP Chuo-ku, Tokyo
- Assignee: BRIDGESTONE CORPORATION
- Current Assignee: BRIDGESTONE CORPORATION
- Current Assignee Address: JP Chuo-ku, Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2014-116810 20140605
- International Application: PCT/JP2015/057439 WO 20150313
- International Announcement: WO2015/186400 WO 20151210
- Main IPC: F16F13/10
- IPC: F16F13/10

Abstract:
A vibration-damping device (10) in the present application includes a first limiting passage (51) and a second limiting passage (52). The first limiting passage (51) includes pressure loss units (53a, 53b). Each of the pressure loss units (53a, 53b) is provided with an intermediate chamber (55), a first communication passage (57), and a second communication passage (58). An opening axis (L1) of a first opening (59) that opens toward the inside of the intermediate chamber (55) in the first communication passage (57) and an opening axis (L2) of a second opening (60) that opens toward the inside of the intermediate chamber (55) in the second communication passage (58) are offset from each other. At least one of the first opening (59) and the second opening (60) opens toward a wall surface that defines the intermediate chamber (55). The pressure loss units (53a, 53b) include a first pressure loss unit (53a) in which the first communication passage (57) directly communicates with the first liquid chamber (14) and the first opening (59) opens toward the wall surface that defines the intermediate chamber (55). In the first pressure loss unit (53a), a portion that faces the first opening (59) and that is in the wall surface that defines the intermediate chamber (55), is formed by the elastic membrane (39).
Public/Granted literature
- US20170089421A1 VIBRATION-DAMPING DEVICE Public/Granted day:2017-03-30
Information query
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