Pressure overshoot characteristics in the cylinder port of oil hydraulic piston pump

摘要

Pressure overshoot is one of the major sources on noise emission in oil hydraulic piston pump. The experimental investigation of pressure overshoot characteristics in the cylinder port of oil hydraulic piston pump is carried out. Experimentaly measured pressure overshoot with delivery pressure, rotational speed and working-fluid temperature at BDC. The effects of V-grooves at the ends of the kidney ports are also sutdied with three types valve plates.