To provide an outside gas type or inside gas type accumulator configured to reduce a pressure difference to be generated by a difference in thermal expansion coefficients when liquid and filled gas confined in a liquid chamber are thermally expanded at a zero-down time, thus reducing a pressure difference between inner and outer sides of a bellows to prevent the occurrence of plastic deformation of the bellows.
A disc-like gasket is held in a floatable state to a surface on a stay side in a bellows cap by a gasket holder. The disc-like gasket moves together with the bellows cap at a steady operation time. The disc-like gasket moves together with the bellows cap to contact with an end surface portion of the stay, thereby closing the liquid chamber at a zero-down time. The bellow cap moves toward a position where liquid pressure and gas pressure balance while the disc-like gasket keeps contacting with the stay due to a difference of pressure receiving areas in both the surfaces when the liquid in the liquid chamber is thermally expanded at a zero-down time.
ARIKAWA TATSUHIRO
MIYAKE KUNIAKI
SASAKI KENJI
NAKAOKA MASAYA
MIZUTANI EIJI
HOSOI NORIYUKI
OGURA TOMOO
ADVICS CO LTD
JP2009092145A | 2009-04-30 | |||
JP2005163911A | 2005-06-23 | |||
JP2005500487A | 2005-01-06 | |||
JPS6295183U | 1987-06-17 | |||
JPH0366987A | 1991-03-22 |
DE10304999A1 | 2004-08-19 |
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