VIBRATION DAMPENING DEVICE - BRIDGESTONE CORP

Title:

VIBRATION DAMPENING DEVICE

Document Type and Number:

WIPO Patent Application WO/2018/193895

Kind Code:

A1

Abstract:

An vibration dampening device (10, 110) is configured such that a limiting passage (24) is provided with a first connection part (26) which is opened to a main liquid chamber (14), a second connection part (27) which is opened to a sub-liquid chamber (15), and a body flow passage (25) through which these parts are connected with each other, wherein the first connection part (26) is provided with a plurality of fine holes (31) which penetrate a first barrier (28) having a surface (28a) which faces the main liquid chamber (14), and projected parts (40, 140) are formed on the entire periphery of the opening peripheral edges of the fine holes (31) in the surface (28a) so as to project toward the main liquid chamber (14) or the sub-liquid chamber (15).

Inventors:

UEKI AKIRA (JP)
NAGASHIMA YASUYUKI (JP)
SATAKE YUKI (JP)

Application Number:

PCT/JP2018/014887

Publication Date:

October 25, 2018

Filing Date:

April 09, 2018

Export Citation:

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Assignee:

BRIDGESTONE CORP (JP)

International Classes:

F16F13/10; B60K5/12

Foreign References:

JP2016176509A	2016-10-06
JP2009275910A	2009-11-26
JP2015025515A	2015-02-05
JP2009058083A	2009-03-19
JP2012172832A	2012-09-10
JP2017081261A	2017-05-18
JP2017098940A	2017-06-01
JP2012172832A	2012-09-10

Other References: