There are usually three types of hydraulic pump constructions found in mobile hydraulic applications. These include equipment, piston and vane; Hydraulic Pump china However, there are also clutch pumps, dump pumps and pumps for refuse automobiles such as for example dry valve pumps
The hydraulic pump 
may be the component of the hydraulic system that takes mechanical energy and converts it into fluid energy in the form of oil flow. This mechanical energy is definitely taken from what’s called the primary mover (a turning push) like the power take-off or straight from the vehicle engine.
With each hydraulic pump, the pump will be of either a uni-rotational or bi-rotational design. As its name implies, a uni-rotational pump is designed to operate in one path of shaft rotation. However, a bi-rotational pump has the ability to operate in either direction.