Hydraulic motor

Hydrostatic drives have a fixed relationship between flow rate and speed, but can be reversible. They are, such as hydraulic pumps (e.g., as a gear pump ) built; the transported with the flow of oil energy is in turn converted back pressure acting on the gear wheels into rotational energy. They are used as a drive, inter alia, for the conveyor belts. Axial piston - types are available with both constant and variable stroke volumes. They are used for example as a traction drive of excavators, one speaks in this context, often of a hydrostatic transmission.

The torque generated by hydrodynamic engines is often independent of the speed controlled (see fluid coupling, hydraulic transmission ).

The maximum torque of the hydraulic motor is determined by the pressure of the hydraulic fluid. The displacement determines the speed, it is of the supplied flow rate dependent.

Designs

Types are, for example, the axial piston motor, the radial piston motor, gear pumps and flow in different Flügelradformen transmissions.