High Quality Hydraulic Pumps: Fundamental Functions and Applications

28 August 2020

Hydraulic pumps are typically used in hydraulic drive systems that rely heavily on an electric motor to convert mechanical energy into the needed fluid pressure. Through the presence of pressurised incompressible hydraulic fluid, the fluid pressure is then sent to the cylinders, actuators, and hydraulic motors based on the required pressure level and volume.

The hydraulic energy that comes from hydraulic pumps combines the pressure and flow for the actuators and other hydraulic drive systems to conduct work such as lifting, holding, and moving load. Without pressure or flow, the hydraulic systems will simply not work and become stationary.

Functions of Hydraulic Pumps

Most hydraulic pumps have two fundamental functions that make them work and useful for a lot of industries today. One of the functions of hydraulic pumps is to generate a vacuum that will force the liquid from the reservoir into the inlet line of the pump. This whole process is typically carried out by the atmospheric pressure.

Another key function of hydraulic pumps is to deliver the liquid from the inlet line to the pump outlet so that it can push itself into the main hydraulic system. The mechanical energy of the pumps and its associated action allows the liquid to truly reach the system and provide the needed power.

Both functions of hydraulic pumps generate sufficient liquid flow or movement that is responsible for the development of pressure. When the pump is not connected to a system, the pressure of the liquid flow would be zero. Alternatively, a rise in pressure will only be seen if there is a presence of load resistance.

Applications of Hydraulic Pumps

The effectiveness of hydraulic pumps in delivering actual work to hydraulic drive systems allows them to be used in a lot of applications. The assembly of most mobile equipment and tools that are used in construction, transport, and mining industry is often comprised of the said pump. Some of the tools that rely on hydraulic pumps are excavators, static and mobile cranes, tractors, vacuum trucks, dump trucks, forestry equipment, mining machinery, aircraft control surfaces, the undercarriage of commercial airliners, and many more.

Aside from mobile equipment and tools, hydraulic pumps are also maximised in industrial applications. As the work required for a specific industrial application becomes drastically severe, more hydraulic pumps are needed to get the job done. Equipment such as foundries, shear and stamping presses, injection moulding machines, jaws of scrapyard crushers, material handling, lifts, conveyors, forklifts, pallet jacks, steel mills, and slitters all use hydraulic pumps to make them work.

The functions of hydraulic pumps enable them to be useful in a wide range of industries. And as the pumps provide the needed fluid pressure, they can easily perform almost all tasks possible without the risk of breaking down.

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