| 摘要 |
<p>PROBLEM TO BE SOLVED: To damp pressure pulsation in a pressure range lower than the pre- charge pressure of an accumulator to accumulate pressure, without the expansion of a loading space on a vehicle and also the degradation of an accumulating function. SOLUTION: This accumulator comprises an oil chamber 19 and a gas chamber 16. The oil chamber 19 is communicated with a hydraulic pump 90 and an actuator 92 by a dividing member (a metal blows 13) installed movably in a cylinder 11. The gas chamber 16 is charged with the gas of a given pre- charge pressure. Furthermore, the accumulator installs a pulsation damping mechanism (a damper chamber 17) to damp the pressure pulsation of a working oil in the range lower than the pre-charge pressure in the cylinder.</p> |
