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1. (WO2018143066) ACCUMULATOR

Pub. No.:    WO/2018/143066    International Application No.:    PCT/JP2018/002400
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Sat Jan 27 00:59:59 CET 2018
IPC: F15B 1/14
Inventors: ARIKAWA Tatsuhiro
有川 達浩
An accumulator which allows escape of pressure in a housing when the temperature has risen due to a fire, etc., is provided. By fixing at least one end of a bellows 3, configured from an expandable bellows main body 31 and a bellows cap 32, to a housing 2, the inside of the housing 2 is hermetically partitioned between the inside and outside of the bellows 3; an elastic member 35 configuring the seal member 36 is attached to the bellows cap 32, and a fluid inlet/outlet 24 is closed through close contact of the seal member 36 on a seal surface 25 of the housing 2, which is formed in a position opposite of the seal member 36, wherein the accumulator is provided with a spacer 34 radially outside of the seal member 36, interposed between the housing 3 and the bellows cap 32, and communication passages 37, 37… are provided in the spacer 34 which allow communication between the inner diameter side and the outer diameter side.