Title:
DAMPER
Document Type and Number:
Japanese Patent JP2023183001
Kind Code:
A
Abstract:
To provide a damper which can suppress the instability of a behavior of a vehicle.SOLUTION: A damper comprises: a first passage 43 and a second passage 175 in which working fluids flow out of one chamber in a cylinder by the movement of a piston 18; a first attenuation force generation mechanism 161 which is arranged at the first passage 43, and generates an attenuation force, and on which a compression force of rubber acts at an operation; pressure chambers 170, 280 arranged in the middle of the second passage 175; a second attenuation force generation mechanism 176 arranged at a passage port 177 for making the pressure chambers 170, 280 communicate with the other chamber 20 in the cylinder; and a third attenuation force generation mechanism 181 which is valve-opened in a region in which its piston speed is lower than those of the first attenuation force generation mechanism 161 and the second attenuation force generation mechanism 176 at upstream sides of the first attenuation force generation mechanism 161 and the second attenuation force generation mechanism 176.SELECTED DRAWING: Figure 3
Inventors:
SHINADA AKIRA
Application Number:
JP2022096343A
Publication Date:
December 27, 2023
Filing Date:
June 15, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD
International Classes:
F16F9/34; F16F9/24
Attorney, Agent or Firm:
Patent Attorney Shiga International Patent Office