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Title:
BELLOWS TYPE HYDRAULIC ACCUMULATOR
Document Type and Number:
Japanese Patent JP3844064
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To prevent gas that is sealed inside from flowing out of an accumulator even if bellows are damaged in a bellows type hydraulic accumulator.
SOLUTION: In the bellows types hydraulic accumulator A having a shell 12 for forming a pressure space 11 and a bellow-type bellows 13 for dividing the pressure space 11 into a gas chamber 15 and a liquid chamber 16, an auxiliary shell 17 for forming on auxiliary liquid chamber 19 that is in a fixed relationship with the shell 12 and communicates with a liquid entrance 12c inside is arranged in the liquid chamber 16. Additionally, a movable wall member (piston 18) is provided, where the member divides the inside of the auxiliary shell 17 into a first section 19a for communicating with the liquid entrance 12c and a second section 19b for communicating with the liquid chamber 16 via a communication path (hole 17d) that is provided at the auxiliary shell 17.


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JP2010112431ACCUMULATOR
Inventors:
Suzuki, Kenichi
Sakakibara, Yuichiro
Application Number:
JP2002000082493
Publication Date:
November 08, 2006
Filing Date:
March 25, 2002
Export Citation:
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Assignee:
ADVICS:KK
International Classes:
F15B1/08; F15B1/24; F16L55/053; (IPC1-7): F15B1/08
Domestic Patent References:
JP8121401A
JP3272301A
JP62088801A
JP2000356201A
Foreign References:
US3336948
WO2001075312A1
Attorney, Agent or Firm:
大庭 咲夫
加藤 慎治