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Sealed volume decreases and increases periodically
- Apr 23, 2018 -

The function of a manual hydraulic pump is to convert the mechanical energy of a power machine (such as a motor and an internal combustion engine) into the pressure energy of a liquid.

Working principle: The cam is driven by the motor to rotate. When the cam pushes the plunger upwards, the seal volume formed by the plunger and the cylinder decreases, and the oil extrudes from the sealed volume and is discharged through the one-way valve to the desired place. When the cam rotates to the lower part of the curve, the spring forces the plunger downwards to a certain degree of vacuum, and the oil in the tank enters the sealed volume under atmospheric pressure. The cam keeps the plunger moving up and down, the volume of the seal periodically decreases and increases, and the pump continuously sucks and discharges oil.

Electric power, railway, rescue, construction and other industries are operating in field sites and provide power for cutting tools, hydraulic clamps, punching machines and other construction equipment.

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