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Patent Searching and Data


Title:
ACCUMULATOR
Document Type and Number:
WIPO Patent Application WO/2014/002642
Kind Code:
A1
Abstract:
The purpose of the present invention is to prevent a seal provided inside a housing from becoming inserted between a bellows cap and a seal holding member provided to an inner peripheral side of the seal, thereby inhibiting damage to the seal and bellows. Accordingly, provided is an accumulator in which: a bellows and a bellows cap are used to partition the interior of an accumulator housing provided with an oil port connected to pressure piping of an apparatus, into a gas chamber having gas enclosed therein and a fluid chamber leading to the oil port; the fluid chamber is sealed by being brought into contact with the seal by a stroke of the bellows cap when the pressure in the pressure piping is reduced; and the seal is held by a seal holding member provided to an inner peripheral side thereof. The accumulator is characterized in that the seal diameter of the seal, said seal being located in such a position as to be in contact with the bellows cap, is equal to or greater than the effective diameter of the bellows.

Inventors:
MIYAKE KUNIAKI (JP)
Application Number:
PCT/JP2013/063789
Publication Date:
January 03, 2014
Filing Date:
May 17, 2013
Export Citation:
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Assignee:
NOK CORP (JP)
International Classes:
F15B1/08
Foreign References:
JP2010048394A2010-03-04
JP2009275768A2009-11-26
JP2002242901A2002-08-28
JP2005163911A2005-06-23
JP2005098391A2005-04-14
Other References:
See also references of EP 2865898A4
Attorney, Agent or Firm:
NOMOTO Yoichi et al. (JP)
Yoichi Nomoto (JP)
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