Hydraulic pumps are the workhorses of the oil and gas industry, moving trillions of gallons of crude oil and natural gas every year. Despite their importance, they're also surprisingly complicated machines. In this article, we'll be looking at the basics of hydraulic pumps, from how they work to what types of materials they can move.

Working principle of hydraulic pump

A hydraulic pump works by using a high-pressure fluid to move an object or fluid through a system. The hydraulic pump is powered by an engine or another hydraulic source and uses the force of the fluid to move the object or fluid. The working principle of a hydraulic pump is based on the principle of hydraulics, which is the study of fluids and their movements under pressure.

Displacement of the Hydraulic Pump

The displacement of an hydraulic pump is measured in liters per minute (lpm). The higher the displacement, the more powerful the pump. Some common displacements for pumps used in industrial applications are 10, 20, 30, and 50 lpm.

Classification of Hydraulic Pumps

Most hydraulic pumps can be classified according to their working principle. The three main categories are rotary, reciprocating, and vane pumps. Rotary pumps work by using a rotor to create a circular motion. Reciprocating pumps use two pistons to alternately move the fluid forward and backward. Vane pumps use vanes on the pump shaft to push and pull the fluid.

The three main types of rotary pumps are: single-stage, double-stage, and triple-stage. Single-stage rotary pumps have one rotor that turns within its own stator cavity. Double-stage rotaries have two rotors that turn in opposite directions within their own stator cavities. Triple-stage rotary pumps have three rotors that turn together within their own stator cavities.

Reciprocating pumps use pistons to move the fluid forward and backward. The most common type of reciprocating pump is the double-acting piston pump. This pump has two pistons that move back and forth alternately. Vane pumps use vanes on the pump shaft to push and pull the fluid. There are two main types of vane pumps: positive displacement and negative displacement. Positive

Desirable Characteristics of Hydraulic Pumps

Hydraulic pumps can provide a number of desirable characteristics, including the ability to be quickly and easily employed, efficient operation, and good reliability.

Hydraulic pump is always used to transfer liquid.

It is a machine that converts rotary motion into flow of liquid.
There are different types of hydraulic pumps.
The main types of hydraulic pumps are the rotary vane pump, the reciprocating piston pump and the centrifugal pump.