Title:
VIBRATION ISOLATION DEVICE
Document Type and Number:
Japanese Patent JP2018115713
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress generation of noise caused by cavitation breakdown without lowering vibration isolation characteristics with a simple structure.SOLUTION: A restriction passage 24 includes: a first communication part 26 opening to a first liquid chamber; a second communication part 27 opening to a second liquid chamber; and a main body flow passage 25 for communicating the first communication part and the second communication part. Out of an internal surface of the main body flow passage, at a pair of opposing surfaces 25a opposing to each other, a plurality of projection parts 34 projecting in the opposing directions opposing to each other are provided along a flow passage direction of the main body flow passage 25. The projection part provided on one opposing surface and, out of the other opposing surface, a portion located between projection parts adjacent to each other in the flow passage direction oppose to each other in the opposing direction. An interval X between the pair of opposing surfaces is larger than two times of the projection height Y from the opposing surface of the projection part.SELECTED DRAWING: Figure 2
Inventors:
UEKI SATORU
NAGASHIMA YASUYUKI
ONO SHINGO
SATAKE YUKI
NAGASHIMA YASUYUKI
ONO SHINGO
SATAKE YUKI
Application Number:
JP2017007178A
Publication Date:
July 26, 2018
Filing Date:
January 19, 2017
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
F16F13/10
Domestic Patent References:
| JP2011241928A | 2011-12-01 | |||
| JP2016176509A | 2016-10-06 | |||
| JP2006183675A | 2006-07-13 |
Foreign References:
| US20140339035A1 | 2014-11-20 | |||
| US20140327198A1 | 2014-11-06 |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Hiroki Ninai
Makiko Otsuki
Tadashi Takahashi
Hiroki Ninai
Makiko Otsuki