Though partially funded by NASA, it is still a private site. Therefore, before downloading any materials for use, you need to ask permission. Motor A hydraulic motor is a device that generates rotary motion directly from the hydraulic system. An example of this is a 4-wheel drive system. To change the hydraulic pump into a hydraulic motor, several changes need to be made.
Hydraulic motors give a steady, continuous torque.
They are small and compact. When the hydraulic pump is connected to a selector valve, the hydraulic oil coming into the pump pushes down on the pistons, causing the whole piston assembly to rotate. If this assembly is connected to a shaft, the shaft will rotate with great rotational speed. The Vickers Hydraulic Motor has a gear reduction box which is attached to the pump to reduce the rotational speed to a useable range. If there are no energy losses in the pump and we decrease the rotational speed, we increase the torque generated.