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What are the common types of oil pumps?

1 Answers

LeConnor

09/06/25 6:28am

The common types of oil pumps include gear-type oil pumps, which consist of two gears; rotary oil pumps, composed of a rotating plate and an eccentrically mounted shaft; and reciprocating oil pumps, which feature a piston driven by a cam and a spring. Relevant details are as follows: 1. Reciprocating oil pump: This type operates intermittently, has relatively low power, and is suitable for low-oil-capacity units. 2. Function of oil pumps: Oil pumps are used to increase oil pressure and ensure a certain oil volume, supplying forced lubrication to various friction surfaces. Internal combustion engines commonly use gear-type and rotor-type oil pumps. Gear-type oil pumps are simple in structure, easy to manufacture, reliable in operation, long-lasting, and capable of high oil pressure, making them widely applicable. Rotor pumps, with their complex shapes, are often made using powder metallurgy. These pumps share the advantages of gear pumps but are more compact and smaller in size.

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