Vane motor

A report on working of vane type pneumatic motors.

2. HimanshuPatil T 32
Vijay Patil T 34
RinilGeorge Rajeev T 39
RiteshGautamT 40

3. Atypicalvane-typeairmotor is shown in figure.

4. This motor operatesontheprincipleof differential
areas.
When compressed air is directed into the inlet port,
its pressure is exerted equally in all directions.
Area A is greater than area B, the force exerted on
vane at position No.1 is more than the force
exerted on the vane at position No.2.
The rotor will turn counterclockwise.
Each vane, in turn, assumes the No.1and No.2
positions and the rotor turns continuously.

6. The rotating element is a slotted rotor which
ismounted on a drive shaft.
Each slot of the rotor is fitted with a freely
sliding rectangular vane.
The rotor and vanes are enclosed in the
housing.
When the rotor is in motion, the vanes tend
to slide outward duetocentrifugal force. The
distance the vanes slide is limited by the
shape of the rotor housing.

7. Slotted Rotor:It is the rotating element of the
vane moor. It is mounted on a drive shaft. It
has slots to accommodate the freely sliding
vanes.

8. Vanes:These are usually rectangular. Vanes
help maintain air columns inside the motor
housing. Due to the difference in the forces
acting on the vane surfaces the motor
rotates.

9. Motor Housing:It is hollow cylinder in which
the rotor and vanes are kept. The center of
rotor is offset with the housing. It has ports
for inlet and outlet of air.
The inlet port is at the place where the rotor
is nearest to the housing. Outlet port is
usually diametrically opposite.

10. Materials Used:
Housing Cylinder: Ply Wood
Rotor: Wood
Vane: Ply Wood

11. Length of Housing Cylinder:10 cm
Outer Diameter of Housing Cylinder:7 cm
Inner Diameter of Housing Cylinder:6 cm
Length of Slotted Rotor:10 cm
Diameter of Slotted Rotor:4.5 cm
Vane Dimension:10*1.5*0.5 cm

12. 1. Hand Tools –For drilling and cutting
2. Automobiles –Compressed Air Engines
3. Torpedoes –Compressed Air Propelled
4. Locomotives in Coal Mines