The working principle of a plunger pump is to change the volume of the sealed working chamber through the reciprocating motion of the plunger in the cylinder body, thereby achieving the functions of oil suction and pressure. A plunger pump relies on a sealed working chamber formed between the plunger and the cylinder bore. The …

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The working principle of gear pump is relatively intuitive and efficient. It is a positive displacement pump designed and manufactured using the principle of gear meshing. The following is a detailed explanation of its working principle: 1. Basic Structure Gear pumps are mainly composed of two or three gears, pump casing, electric motor, and seals. …

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