Title:
アキュムレータ
Document Type and Number:
Japanese Patent JP6904983
Kind Code:
B2
Abstract:
The present invention is to provide an accumulator whose life is long without specifically processing a sealing member.An accumulator 1 comprising a housing 2 having a sealing face 25 and a fluid inlet/outlet passage 24, a bellows 3 fixed at least one end to the housing 2 such that an inner space of the housing 2 such that an inner space of the housing 2 is hermetically partitioned by the bellows 3 into an interior and an exterior of the bellows 3, the bellows 3 including a bellows main body 31 capable of expanding and contracting and a bellows cap including an annular seal holder, and a sealing member 35 formed by covering a disc-shaped substrate 36 with an elastic body 37 that is opposed to and capable of being closely attached to the sealing face 25 of the housing 2, the sealing member is 35 held by a holding portion 34c of the annular seal holder 34 on an inner diameter side of the annular seal holder 34, the fluid inlet/outlet passage 24 of the housing 2 being closed upon a close attachment of the elastic body 37 to the sealing face25.Through holes 38, 38,... passing through in a radial direction are provided in the seal holder 34, and communication passages 39, 39,... extending in the radial direction so as to partially form a space A1 providing communication between the through holes 38, 38,... and the fluid inlet/outlet passage 24 are provided in the seal holder 34 or the sealing face 25.
Inventors:
Tatsuhiro Arikawa
Application Number:
JP2018565478A
Publication Date:
July 21, 2021
Filing Date:
January 24, 2018
Export Citation:
Assignee:
Eagle Industry Co., Ltd.
International Classes:
F15B1/14
Domestic Patent References:
| JP2013194871A |
Attorney, Agent or Firm:
Kazuo Shigenobu
Ryoichi Mizobuchi
Yoshifumi Ishikawa
Hideki Akiba
Taeko Katata
Michihiro Hayashi
Ryoichi Mizobuchi
Yoshifumi Ishikawa
Hideki Akiba
Taeko Katata
Michihiro Hayashi