Title:
緩衝器
Document Type and Number:
Japanese Patent JP6949123
Kind Code:
B2
Abstract:
The present invention is provided with: a first seat (51) provided so as to surround one or more of openings (41a) of first passages (41) and disposed at a distance in a piston circumferential direction; a second seat (61) which is provided so as to surround openings (42a) of second passages (42), is disposed inside the first seat (51) in a piston radial direction at a distance from the first seat (51) in the piston radial direction, and has a lower height than the first seat (51); a large-diameter first disk valve (95) mounted so as to be capable of sitting on the first seat (51); and a small-diameter second disk valve (92) mounted so as to be capable of sitting on the second seat (61). The seat width of the outer seat section (54) of the first seat (51), the outer seat section (54) being located on the outer side of the first seat (51) in the piston radial direction, is greater than the seat width of the inner seat section (55) of the first seat (51), the inner seat section (55) being located on the inner side of the first seat (51) in the piston radial direction.
Inventors:
Nakata Jun
Koji Minamino
Nakagawa Reiji
Hiroyasu Sato
Koji Minamino
Nakagawa Reiji
Hiroyasu Sato
Application Number:
JP2019539352A
Publication Date:
October 13, 2021
Filing Date:
August 16, 2018
Export Citation:
Assignee:
Hitachi Astemo, Ltd.
International Classes:
F16F9/348; F16F9/508
Domestic Patent References:
| JP2010249250A | ||||
| JP2016510867A | ||||
| JP2017036775A | ||||
| JP2013142468A |
Attorney, Agent or Firm:
Shiga International Patent Office