Plunger Pump: Operating Stages of a Plunger Pump

Release Date:

2020-12-02 09:45

Source:

When the plunger pump is operating, the cam on the fuel pump camshaft and the plunger spring act to force the plunger to move up and down, thereby completing the fuel pumping process. Conclusion : On this basis, the following conclusion is drawn:

The total stroke of the plunger’s reciprocating motion remains constant, as determined by the cam lift. The amount of fuel delivered to the plunger during each cycle depends on the fuel delivery stroke; without camshaft control, this stroke would be variable. However, the fuel delivery start timing does not change with variations in the fuel delivery stroke. By rotating the plunger, the fuel delivery port can be shifted, thereby adjusting the fuel delivery quantity. The domestically produced series of plunger injection pumps and plunger pumps mainly include: Series a, b, p, z, and series i, ii, iii.

Serialization is based on piston stroke, pump-cylinder center distance, and structural configuration, which are then matched with pistons of different diameters. According to the varying fuel-delivery requirements within the power range of a single diesel-engine cylinder, this approach yields a variety of injection pumps with different fuel-delivery rates under different operating cycles, thereby meeting the needs of various diesel engines. The working principles and structural configurations of domestically produced series injection pumps are essentially the same. Taking… Taking the Type A injection pump as an example, this paper introduces the structure and operating principle of plunger-type injection pumps. A plunger pump consists of four main components: the individual metering unit, the fuel-dosing mechanism, the drive mechanism, and the pump housing.

Equipped with microprocessor-based intelligent control and an LCD display, this device can communicate information with computer systems and features stable operating-pressure control, minimal pulsation, and simple, convenient operation. It is widely used in the biochemical, pharmaceutical, chemical, and environmental protection industries, meeting the need for continuous, constant-pressure, constant-flow liquid delivery required by these sectors.

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