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Working principle of hydraulic pump
Views: 2651 Update Date: Dec 16 , 2017

Hydraulic pump is a kind of hydraulic component that provides pressure liquid for hydraulic transmission. Its function is to convert the mechanical energy of a power machine, such as an electric motor and an internal combustion engine, into the pressure energy of a liquid. The following is the working principle of the single plunger pump.


The cam is driven by the motor. When the cam pushes the plunger upward, the volume of the seal formed by the plunger and cylinder block decreases, and the oil is squeezed out of the sealing volume and discharged to the required place through the one-way valve. When the cam rotates to the falling part of the curve, the spring forces the plunger to form a vacuum degree. The oil in the fuel tank enters the seal volume under the action of atmospheric pressure. The cam keeps the plunger up and down continuously, and the seal volume decreases and increases periodically. The pump keeps oil absorption and oil discharge.

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