VIBRATION ABSORPTION DEVICE - BRIDGESTONE CORP

Title:

VIBRATION ABSORPTION DEVICE

Document Type and Number:

Japanese Patent JP2018119621

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To inhibit emission of noise due to collapse of a cavitation without deteriorating vibration absorption property by a simple configuration.SOLUTION: In a vibration absorption device, a control passage 24 includes: a first communication part 26 opened to a first liquid chamber 14; a second communication part 27 opened to a second liquid chamber 15; and a body flow passage 25 for communicating the first communication part 26 to the second communication part 27. At least one of the first communication part 26 to the second communication part 27 includes a plurality of pores 31 penetrating through barriers 28, 29 facing the first liquid chamber 14 or second liquid chamber 15. A spiral groove extending about a central axis of the pores 31 is formed at an inner peripheral surface of the pores 31.SELECTED DRAWING: Figure 1

Inventors:

NAGASHIMA YASUYUKI
SATAKE YUKI
UEKI SATORU

Application Number:

JP2017011972A

Publication Date:

August 02, 2018

Filing Date:

January 26, 2017

Export Citation:

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