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Subject: Oil Hydraulics and Pneumatics
(2171912)
Topic: Hydraulic Motor
Hydraulic Motor
• A hydraulic motor is a mechanical actuator that
converts hydraulic pressure and flow into torque and
angular displacement (rotation). The hydraulic motor
is the rotary counterpart of the hydraulic cylinder as a
linear actuator.
Hydraulic Motor
• Hydraulic motor produce rotation of shaft and torque
when fluid under pressure is supplied.
• Hydraulic motor is usually designed for working
pressure at both sides of the motor.
• Hydraulic motors are back driven.
Types of Hydraulic Motors
• Gear Motors
• Vane Motors
• Piston Motors
• Ge-rotor Motor
Gear Motor
• Gear and vane motors are used in simple
rotating systems. Their benefits include
low initial cost and high rpm.
• High pressure oil is ported into one side
of the gears, where it flows around the
periphery of the gears, between the gear
tips and the wall housings in which it
resides, to the outlet port.
• An especially positive attribute of the
gear motor is that catastrophic
breakdown is less common than in most
other types of hydraulic motors.
Vane Motor
• A vane motor consists of a housing with an eccentric bore, in which
runs a rotor with vanes in it that slide in and out. The force
differential created by the unbalanced force of the pressurized fluid
on the vanes causes the rotor to spin in one direction.
• A critical element in vane motor design is how the vane tips are
machined at the contact point between vane tip and motor housing.
Several types of "lip" designs are used, and the main objective is to
provide a tight seal between the inside of the motor housing and the
vane, and at the same time to minimize wear and metal-to-metal
contact.
Piston Motor
• It has a cylinder which, two pistons are mounted.
Ge-rotor Motor
• It consists of two generated rotors in which, one
having external teeth and the other having an internal
teeth.
• The inner rotor is having one tooth less than that of
the outer rotor.
Straight Axis Piston Motor Bent Axis Piston Motor
Stationary Cylinder radial Piston
Motor
Rotating Cylinder Type Radial
Piston Motor
Motor Calculations
THANK YOU…

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Hydraulic Motors

  • 1. Subject: Oil Hydraulics and Pneumatics (2171912) Topic: Hydraulic Motor
  • 2. Hydraulic Motor • A hydraulic motor is a mechanical actuator that converts hydraulic pressure and flow into torque and angular displacement (rotation). The hydraulic motor is the rotary counterpart of the hydraulic cylinder as a linear actuator.
  • 3. Hydraulic Motor • Hydraulic motor produce rotation of shaft and torque when fluid under pressure is supplied. • Hydraulic motor is usually designed for working pressure at both sides of the motor. • Hydraulic motors are back driven.
  • 4. Types of Hydraulic Motors • Gear Motors • Vane Motors • Piston Motors • Ge-rotor Motor
  • 5. Gear Motor • Gear and vane motors are used in simple rotating systems. Their benefits include low initial cost and high rpm. • High pressure oil is ported into one side of the gears, where it flows around the periphery of the gears, between the gear tips and the wall housings in which it resides, to the outlet port. • An especially positive attribute of the gear motor is that catastrophic breakdown is less common than in most other types of hydraulic motors.
  • 6. Vane Motor • A vane motor consists of a housing with an eccentric bore, in which runs a rotor with vanes in it that slide in and out. The force differential created by the unbalanced force of the pressurized fluid on the vanes causes the rotor to spin in one direction. • A critical element in vane motor design is how the vane tips are machined at the contact point between vane tip and motor housing. Several types of "lip" designs are used, and the main objective is to provide a tight seal between the inside of the motor housing and the vane, and at the same time to minimize wear and metal-to-metal contact.
  • 7. Piston Motor • It has a cylinder which, two pistons are mounted.
  • 8. Ge-rotor Motor • It consists of two generated rotors in which, one having external teeth and the other having an internal teeth. • The inner rotor is having one tooth less than that of the outer rotor.
  • 9. Straight Axis Piston Motor Bent Axis Piston Motor Stationary Cylinder radial Piston Motor Rotating Cylinder Type Radial Piston Motor
  • 11.