| 摘要 |
<p>PROBLEM TO BE SOLVED: To exhibit a good pulse pressure absorbing effect or a damping effect by providing a chamber and a throttle mechanism for absorbing pulsation generated at a system side for connecting an accumulator. SOLUTION: In an accumulator, when pressure of a system side is extremely reduced during operation, a bellows is extended, an end member 7 abuts on an end surface part 3b and the like of a shell 3, and then it is stopped, a throttle clearance 21 of a throttle mechanism 20 is formed between a tip surface of a throttle forming wall 19 and an end surface 7a of the end member 7, and also a chamber 22 is formed on an outer peripheral side of the throttle clearance 21 to communicate therewith. When a pressure fluid flows into the accumulator in association with pulsation of the system side, pulsation energy is converted into loss energy by contracted flow and throttle when the throttle clearance 21 is propagated by the fluid or its pressure, and it attains the chamber 22 to consume as dynamic pressure loss. It is thus possible to effectively damp pulsation of the system side by a damping action.</p> |
