| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent a bellows and a stopper from abutting against each other in an accumulator equipped with the bellows. <P>SOLUTION: One end of the bellows 64 is fixed to the bottom of an inside of a shell 58 in the accumulator 50 to be made axially freely elastic. A bellows cap 70 is attached to the other end of the bellows 64 to separate the inside of the shell in the accumulator into an oil chamber 90 and a gas chamber 72. The stopper 88 abuts against the bellows gap 70 to thereby place a restriction on a contraction amount of the bellows. A maximum pressure measuring means measures the maximum pressure, being an accumulator pressure when the bellows cap and the stopper abut against each other. A motor control means controls an action of a motor for driving a pimp for storing pressure in the accumulator so that the pressure of the accumulator may not exceed the maximum pressure. <P>COPYRIGHT: (C)2010,JPO&INPIT |
