A diesel-powered water pump is an industrial equipment that converts the power generated by a diesel engine into water power, thereby achieving the transportation and supply of water. It is widely used in agriculture, construction, engineering, and firefighting sectors. Its main function is to transfer the power of the diesel engine to the water pump through a linkage mechanism, driving its operation. The working process of the diesel-powered water pump can be divided into three stages: water suction, water pressurization, and water discharge. During the water suction stage, the diesel engine generates negative pressure through the up and down movement of the piston, drawing water from the source into the pump's inlet. In the water pressurization stage, the piston of the diesel engine moves upward, pushing water into the pump's pressure chamber. In the water discharge stage, the piston of the diesel engine moves downward, expelling water from the pump's outlet.