| 摘要 |
<p>PROBLEM TO BE SOLVED: To inexpensively manufacture a partition piston having the lightness in weight, and to keep sufficient sealing effects at any incorporated position. SOLUTION: A partition piston 13 accommodated in a cylinder hole 11 is formed of a sleeve deep drawing mold portion. At least one guide member is provided for guiding the partition piston 13 in the cylinder hole 11, and at least one seal ring is provided for sealing the partition piston 13 at the peripheral face side in the cylinder hole 11. In addition, two paired members are provided comprising a seal ring 17 and a ring-shaped guide member 18 in such a manner as to be arranged adjacent to each other. An axial spacing between the paired members is defined by at least one spacer bush 19 arranged coaxially in relation to the partition piston 13.</p> |
