| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a piston pump, capable of reducing manufacturing cost on both cylinders with which a piston and a slide ring are incorporated, and reducing the number of components. <P>SOLUTION: This piston pump is provided with the piston 17 to form a pump chamber Ro in a cylinder hole 13a in the first cylinder member 13, an intake valve V1 provided on the piston 17 to be opened/closed for increasing/decreasing the volume of the pump chamber Ro, and a delivery valve V2 provided on the delivery side of the pump chamber Ro to be opened/closed for increasing/decreasing the volume of the pump chamber Ro. An intake chamber R1 and a delivery chamber R2 are demarcated in a cylinder hole 15a in the second cylinder member 15 incorporated with the first cylinder member 13. A slide ring 19 is provided to axially reciprocate to charge fluid charged from the intake chamber R1 to the delivery chamber R2 into the pump chamber Ro. The first cylinder member 13 is a non-cut item having the cylinder hole 13a to contain one end part 71a of the piston. The second cylinder member 15 is a non-cut item having the cylinder hole 15a to contain the slide ring 19. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
