Title:
BUFFER
Document Type and Number:
WIPO Patent Application WO/2017/038571
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a buffer that is capable of making changes in damping force in the low-speed range of piston speed smooth and allowing a main valve to be opened at a lower differential pressure. A subvalve 111 is provided upstream of a main valve 27 and in series with the main valve 27, thereby making it possible for changes in damping pressure in the low-speed range of piston speed to be smooth. Moreover, the main valve 27 has a simple cantilevered support structure in which the inner peripheral side of the main valve 27 is not clamped, so the main valve 27 can be opened at a lower differential pressure.
Inventors:
YAMASHITA MIKIO (JP)
YAMAOKA FUMIYUKI (JP)
YAMAOKA FUMIYUKI (JP)
Application Number:
PCT/JP2016/074615
Publication Date:
March 09, 2017
Filing Date:
August 24, 2016
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F16F9/46; F16F9/34
Foreign References:
| JPH11287281A | 1999-10-19 | |||
| JPH08135713A | 1996-05-31 | |||
| JP2013011342A | 2013-01-17 |
Attorney, Agent or Firm:
ONO, Shinjiro et al. (JP)
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