What type of lubricating oil should be added to a plunger pump?

1 Answers
SanCaleb
07/30/25 8:57am
Plunger pumps do not require additional lubrication. Below is relevant information about plunger pumps: 1. Structural types: Plunger pumps are divided into two representative structural types—axial plunger pumps and radial plunger pumps. Since radial plunger pumps belong to a new type of high-efficiency pump with relatively high technical content, as domestic production accelerates, radial plunger pumps will inevitably become an important component in the application field of plunger pumps. Radial plunger pumps are those where the reciprocating motion direction of the piston or plunger is perpendicular to the drive shaft. 2. Mechanical principle: The total stroke length L of the reciprocating motion of the plunger in a plunger pump remains constant and is determined by the lift of the cam. The fuel supply amount per cycle of the plunger depends on the fuel supply stroke, which is variable and not controlled by the camshaft. The fuel supply timing does not change with variations in the fuel supply stroke. Rotating the plunger can alter the end timing of the fuel supply, thereby changing the fuel supply amount. During operation, under the action of the cam on the fuel injection pump camshaft and the plunger spring, the plunger is forced to move up and down in a reciprocating motion, completing the oil pumping task. The oil pumping process can be divided into the following two stages.
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