There are usually three types of
The hydraulic pump may be 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 taken from what is called the primary mover (a turning push) such as the power take-off or directly 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 path.