Working principle of single plunger hydraulic pump
The working principle of a single plunger hydraulic pump is based on the reciprocating motion of the plunger in the cylinder body, which achieves oil suction and pressure by changing the volume of the sealed working chamber. A plunger pump is driven by a power device provided by an electric motor, engine, or other energy source, which causes the plunger to reciprocate in the cylinder, thereby compressing and pushing the liquid.
The working process of a single plunger hydraulic pump
Inhalation stage: When the plunger moves backward, the pressure inside the cylinder hole decreases, forming a negative pressure area, and the oil in the hydraulic oil tank is sucked into the cylinder body under the pressure difference.
Compression stage: As the plunger continues to move forward, the oil in the cylinder is compressed and the pressure gradually increases.
Discharge stage: When the plunger moves to the limit position, a certain channel in the cylinder body opens, and high-pressure oil is pushed out of the pump body and enters the hydraulic system.
Application areas of single plunger hydraulic pumps
Single plunger hydraulic pumps are widely used in high-pressure, high flow, and flow regulation applications, such as hydraulic presses, construction machinery, and ships, due to their high rated pressure, compact structure, high efficiency, and convenient flow regulation
