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Patent Searching and Data


Title:
DAMPER
Document Type and Number:
WIPO Patent Application WO/2019/044522
Kind Code:
A1
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 (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
MINAMINO Koji (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
NAKAGAWA Reiji (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
SATO Hiroyasu (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
Application Number:
JP2018/030418
Publication Date:
March 07, 2019
Filing Date:
August 16, 2018
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD. (2520, Takaba Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
International Classes:
F16F9/348; F16F9/508
Foreign References:
JP2010249250A2010-11-04
JP2016510867A2016-04-11
JP2017036775A2017-02-16
JP2013142468A2013-07-22
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
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