Title:
ACCUMULATOR
Document Type and Number:
WIPO Patent Application WO/2018/101007
Kind Code:
A1
Abstract:
Provided is an accumulator having a bellows with a long service life. An accumulator 1 having outer ring-shaped crest portions 38, 38, … and inner ring-shaped crest portions 39, 39, …, at least one end of an extendable bellows 3 being fixed, as a fixed end 31a, to a housing 2 having a liquid supply port 22a, whereby the interior of the housing 2 is partitioned in a sealed state inside and outside the bellows 3, wherein regions B1, which have outer ring-shaped crest portions 38B, 38B, … having an outer diameter OD2 that is smaller than the outer diameter OD1 of the outer ring-shaped crest portions 38A, 38A, … on the fixed-end 31a side, are distributed in the extension direction in the bellows 3.
Inventors:
ARIKAWA TATSUHIRO (JP)
YAMASHITA MATSUYOSHI (JP)
YAMASHITA MATSUYOSHI (JP)
Application Number:
PCT/JP2017/040545
Publication Date:
June 07, 2018
Filing Date:
November 10, 2017
Export Citation:
Assignee:
EAGLE IND CO LTD (JP)
International Classes:
F15B1/10
Domestic Patent References:
| WO2016194607A1 | 2016-12-08 |
Foreign References:
| JP2007092782A | 2007-04-12 | |||
| JP2012167748A | 2012-09-06 |
Other References:
See also references of EP 3550156A4
Attorney, Agent or Firm:
SHIGENOBU Kazuo et al. (JP)
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