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