Hydrostatic Motors

Diego Mazabel Bragado

HYDROSTATIC MOTORS

 Fluid Power
 Hydraulic drive system  Hydraulic motor

 Hydrostatic
 Hydrostatic motor  Operation of hydrostatic motor

Fluid Power
 Itis the use of fluids under pressure to generate, control, and transmit power.

- Hydraulics - Pneumatics

Hydraulic drive system

 A hydraulic drive system is a drive or

transmissionsystem that uses pressurized hydraulic fluid to drive hydraulic machinery

- The generator

- Valves, filters, piping etc.
- The motor

Hydraulic motor
 A hydraulic motor is a mechanicalactuator that converts hydraulic pressure and flow into

torque and angular displacement (rotation).

 The hydraulic motor is the rotary counterpart

of the hydraulic cylinder.

Operation ofhydraulic motor

- Inlet, outlet

- Drive Shaft

 A hydraulic motor should be interchangeable with a hydraulic pump because it performs

the opposite function - much as the conceptual DC electricmotor is interchangeable with a DC electrical generator.

 Most hydraulic pumps cannot be used as hydraulic motors because they cannot be

backdriven. Also, a hydraulic motor is usuallydesigned for the working pressure at both sides of the motor.

 Hydraulic pumps, motors, and cylinders can be combined into hydraulic drive systems.

One or more hydraulic pumps, coupled to one or morehydraulic motors, constitutes a hydraulic transmission.

Hydrostatic
 The transfer of energy from flow and pressure, not from the kinetic energy of the

flow.

Hydrostatic motor
 In aremote hydrostatic motor system, the hydrostatic motors can be simple gear

motors or piston motors.

 When the motor is manufactured as part of the complete set as in the U systems or on

line,the motor is piston type. The motor rotation speed can not be changed unless you change the volume of oil it receives from the pump. Remember that a column of oil to the motor spins at a given...