Fundamentals Of Hydraulic Pumps

A hydraulic pump is a device for transmitting mechanical power to hydraulic energy, and to generate flow with enough amount of power to overcome the induced pressure by the load. The hydraulic pump performs two functions when operating. First, the hydraulic pump creates the needed vacuum at the pump inlet to allow the atmospheric pressure to force liquid, by e mechanical action. Second, the same mechanical action of the hydraulic pump brings liquid to the pump outlet, forcing it into the hydraulic system. The hydraulic pump produces a liquid flow or movement, but it does not generate pressure. The flow is important for the development of pressure, which is an important function in order the fluid flow to be resistant. For instance, the pressure generated by the fluid is zero for a pump not connected to a system.

Hydraulic Pumps @ Machines4u.com.au

The main classification of pumps & valves is positive displacement and non-positive displacement pumps. Most hydraulic pumps are positive displacement. A positive displacement hydraulic pump is a pump that accurately delivers same amount of liquid in every cycle.