| 摘要 |
<p>PURPOSE:To improve responsiveness when the inclining angle of a swash plate is adjusted, while simplifying structure so as to reduce the number of parts, in relation to the flow amount control mechanism of a variable capacity type piston pump. CONSTITUTION:A flow amount control mechanism is provided with a spring 16 which is provided in a housing 1 while energizing a swash plate 7 in a direction to increase its inclining angle theta and a control piston 21 which is provided in the housing 1', being capable of making reciprocating in parallel to a rotary shaft 3 while being provided in direction opposing to energizing force of the spring 16 opposing to the swash plate 7. Operation fluid discharged from a discharging outlet 2b is acted directly in a direction wherein the inclining angle of the swash plate 7 is decreased in relation to the control piston 21. The operation fluid discharged from the discharging outlet 2b is acted through a throttle so as to force the operation fluid to oppose to pushing and pressing force of the operation fluid for acting on the control piston 21.</p> |
