Three-cylinder plunger pump It is a type of hydraulic pump that achieves changes in oil flow and pressure through the reciprocating motion of a piston within a cylinder. Its advantages include high pressure, compact structure, high efficiency, and convenient flow regulation. This system is primarily used in applications requiring high pressure and large flow rates, as well as situations where high power and large flow must be precisely controlled, such as gantry planers, broaching machines, hydraulic presses, construction machinery, mining equipment, metallurgical machinery, and marine vessels.

  A swashplate-type axial piston pump is arranged around the circumference of the conventional working cylinder. The centerline of the piston assembly coincides with the centerline of the cylinder block. The swashplate is inclined at a certain angle relative to the cylinder’s axis, and oil is drawn in from the left and right inlet ports of the oil sump; the pressurized oil then flows into the hydraulic cylinder, where each control piston draws in oil under pressure with every rotation. 1x. The inclination angle of the inclined plate remains essentially constant, making it a positive-displacement pump. However, since it is adjustable, it functions as a variable-displacement pump, which is an important type of variable pump for us.

  Three-cylinder plunger pump The motor has three primary friction pairs: the slider and swashplate, the valve plate and cylinder block, and the piston and cylinder bore surface.

  The slipper contacts the swashplate in a floating, non-contact, static unloading configuration, resulting in the slipper and the swashplate A high-pressure oil film, ranging from 10 to 30 mm in thickness, is formed within the plunger chamber, with the plunger being loaded by fluid pressure to prevent direct metal-to-metal wear. The frictional interaction between the valve plate and the cylinder occurs under both static and dynamic conditions. The friction between the plunger and the cylinder bore is of a non-static, pressure-relief type, while the plunger rod undergoes linear reciprocating motion within the cylinder bore.

  Three-cylinder plunger pump In the axial damping hole A portion of the plunger pressure oil generated by the centrally guided three-cylinder plunger pump in d increases the oil film thickness in h and its vicinity, thereby producing a vertical force on the slider surface. The magnitude of this force, f, is proportional to the radii r1 and r2 of the sliders, which in turn determines the direction of the combined action of the plunger oil and the inclined surface on the slider’s inclined plane—namely, the resultant force f—rather than a purely compressive force f.

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