| 摘要 |
PROBLEM TO BE SOLVED: To reduce higher harmonic waves from the noise produced from the whole plurality of piston chambers by not only smoothing the pressure fluctuation curve in the individual piston chamber but also adjusting mutual step-up and step-down pressure timing in a plurality of piston chambers. SOLUTION: This axial piston pump is composed so that, when pressure in a certain piston chamber reaches the pressure in discharge port T, openings of other piston chambers start to lie on top of the other openings L2, and when pressure in a certain piston chamber reaches the pressure in a suction port S, openings of other piston chambers start to lie on top of the other openings L1. |
