| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an accumulator with an open-air type structure capable of improving durability of a bellows guide member.SOLUTION: In an accumulator 10, a fixed-end 27 of a metal bellows 21 is connected and fixed to a liquid-chamber end cover member 18 in a fluid-tight manner, or to an inner wall of a cylindrical body part 1 on the side of the liquid-chamber end-cover member 18 in a fluid-tight manner; a movable end 26 is positioned between the fixed-end 27 and an air-chamber end cover member 17 in an axial direction O; a bellows guide member 22 is interposed between pleated walls 28 adjacent to each other of the metal bellows 21, alternatively, is connected and fixed to a bellows end cover 25, or to the movable end 26; and the bellows guide member 22 is separated from a liquid chamber 3 by the metal bellows 21 so that a gas volume adjustment liquid containing no S and no P or containing at least a trace quantity, such as 10 ppm or less, of S and a trace quantity, such as 10 ppm or less, of P is used.</p> |
