| 摘要 |
PROBLEM TO BE SOLVED: To provide an accumulator having a new structure capable of exerting various function effects such as increase in variation width of pump performance (variation width of discharge pressure, discharge amount and maximum allowable pulsation pressure etc.) to which one accumulator can respond.SOLUTION: An accumulator chamber 11 has a sufficiently long tubular portion 15, and the tubular portion 15 rounds a plurality of times or is folded back a plurality of times for arrangement. A tubular portion 15 includes an inclination part 16 in which a height of a base end 18 side nearer to a connection port 12 is different from that of a tip 19 side further away from the connection port 12. The inclination part 16 is inclined so that its height gradually increases from the base end 18 side toward the tip 19 side. |
