Title:
VIBRATION ISOLATION DEVICE
Document Type and Number:
Japanese Patent JP2018194101
Kind Code:
A
Abstract:
To suppress generation of noise caused by cavitation breakdown without degrading vibration control characteristic with a simple structure.SOLUTION: A limiting passage 24 includes a first communication portion 26 opened to a main liquid chamber 14, a second communication portion 27 opened to an auxiliary liquid chamber 15, and a main body flow channel 25 for communicating the first communication portion 26 and the second communication portion 27. At least one of the first communication portion 26 and the second communication portion 27 includes a plurality of pores 31 penetrating through a first barrier 28 facing the main liquid chamber 14. Positions of both end opening portions of the pore 31 are different from each other in a plane view of the first barrier 28, and at least in two of the plurality of pores 31, extending directions from a main body flow channel 25 side toward a main liquid chamber 14 side at an end portion of the main liquid chamber 14 side are different from each other.SELECTED DRAWING: Figure 1
Inventors:
UEKI SATORU
NAGASHIMA YASUYUKI
SATAKE YUKI
NAGASHIMA YASUYUKI
SATAKE YUKI
Application Number:
JP2017098941A
Publication Date:
December 06, 2018
Filing Date:
May 18, 2017
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
F16F13/10; B60K5/00
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Hiroki Ninai
Makiko Otsuki
Tadashi Takahashi
Hiroki Ninai
Makiko Otsuki