Title:
VIBRATION-DAMPING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/090949
Kind Code:
A1
Abstract:
A vibration-damping device (1, 101) has a partition member (16) provided with an orifice passage (24) for communicating a main liquid chamber (14) and an auxiliary liquid chamber (15) with each other, a plurality of first communication holes (42a) for communicating the main liquid chamber and a storage chamber (42) with each other, and a second communication hole (42b) for communicating the auxiliary liquid chamber and the storage chamber with each other. In the partition member, a cylindrical member (21) protruding in an axial direction toward an elastic body (13) is disposed on a first wall surface (16b) on which the first communication holes open and which constitutes a part of an inner surface of the main liquid chamber. The plurality of first communication holes open, on the first wall surface, in both an inside portion (16f) located inside the cylindrical member and an outside portion (16g) located outside the cylindrical member. The partition member (16, 116), or a movable member (141), is provided with a flow state adjustment part (50, 150) for adjusting a flow of fluid between an outer peripheral surface of the cylindrical member (21) and an inner peripheral surface of the main liquid chamber (14).
More Like This:
| WO/2002/016800 | LIQUID SEAL VIBRATION CONTROL DEVICE |
Inventors:
MIKOSHIBA REI (JP)
SATAKE YUKI (JP)
UEKI AKIRA (JP)
SATAKE YUKI (JP)
UEKI AKIRA (JP)
Application Number:
PCT/JP2020/041719
Publication Date:
May 14, 2021
Filing Date:
November 09, 2020
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60K5/12; F16F13/10
Domestic Patent References:
| WO2019216403A1 | 2019-11-14 |
Foreign References:
| JP2010031989A | 2010-02-12 | |||
| JP2015059655A | 2015-03-30 | |||
| JP2007218420A | 2007-08-30 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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