Piston pump

Working principle

Hydraulic system of plunger pump is one of the most important devices. It relies on the plunger in the cylinder of reciprocating motion, make a difference in the volume of the working Chamber to achieve oil, oil. Piston pump with high pressure rated, compact, high efficiency and flow control advantages, are widely used in high pressure and large flow rate and flow rate needs to be adjusted, such as hydraulic machines, construction machinery and shipbuilding.

Piston pump is a reciprocating pump, which belongs to the volumetric pump, plunger pump shaft turns the eccentric-driven, reciprocating motion, the suction and discharge valves are one-way valves. When the column another pull, working pressure decreases, outlet valve closed, while lower than the inlet pressure, the inlet valve opens, liquid enter; when you push the plunger, Studio pressure, inlet valve closed than exporting stressed, open outlet valve, liquid discharge. When shaft drive the cylinder rotates, the swashplate in pulls or pushes the piston from the cylinder, oil suction and discharge process is complete. Piston and cylinder bore Chamber composed of oil through the oil pan and oil pump suction and discharge cavity the same. Variable mechanism used to change the inclination of the swashplate, the angle can be changed by adjusting the swash plate pump displacement.