Vehicles can not only cranked through petroleum products.but also can be run through compressed air

1. VIDYAA VIKAS
COLLEGE OF ENGINEERING & TECHNOLOGY
DEPARTMENT OF
MECHANICAL ENGINEERING

2. PNEUMATIC BIKE
PREPARED BY,
PRAVINTH.A

3. WHAT
IS
PNEUMATIC
BIKE ?

4. INTRODUCTION
 The vehicle uses fluid system instead of the
Internal Combustion engine.
 Will help save the non-renewable sources
of energy.
 Will help in reducing the problem of global
warming since two wheelers contribute to
the problem the most.

5. WORKING METHODOLOGY
 Reciprocating piston of pneumatic cylinder drives
the crank shaft.
 Power system consists of electric motor and
pneumatic cylinder.
 Electric system helps in overcoming the initial
torque to drive the vehicle with load.

6.  Electric motor is active until about 20 km/hr.
 Switchover of power to pneumatic cylinder takes place by
relay operations.
 Torque sensor is the transducer.
 Torque sensor converts the torque acting on the wheel
into analog signal.

9.  Analog signals are sent to relays thereby playing an
immigrant part in switchover of power from electric motor
to pneumatic cylinder.

10. PNEUMATIC CYLINDER WORKING:
 Piston of pneumatic cylinder made to reciprocate
continuously by means of sensors.
 Sensors (reed switches ) are placed at either end of
pneumatic cylinder.
 Solenoids and solenoid valve control movement of piston
of pneumatic cylinder.

11. PART NO. PART NAME
1 4/3 SOLENOID
2,3 SOLENOID
4 CYLINDER
5 PISTON
6,7 REED SWITCHES
8 CONNECTING
ROD
9 CRANK SHAFT
INDEX OF PNEUMATIC SYSTEM

12.  Signals are fed to the solenoid valve by sensors.
 The piston reciprocates based upon the side from the
signal is fed from the cylinder to the solenoid valve.
 The reed switches are of high precision and accuracy
thereby giving approximately 450 strokes/min.

13. SPEED AND BRAKING
 Speed is regulated by means of metering valve.
 It meters the flow of air inside the cylinder.
 Valve can be used to regulate the flow.
 That is increase as well as decrease.

14.  Braking is used to stop the vehicle at instantaneous
hindrances.
 Is achieved by the metering valve which completely stops
the air flow.
 Optimal design is achieved by considering the various
design parameters.

15. DESIGN PARAMETERS
 The various design parameters are:
1. Piston Diameter : The piston dia = 25mm
2. Flow Rate From Compressor : The flow rate required
from the compressor is 0.25 L/s.

16. 3. Power : The power delivered after initial torque is
overcome is about 0.89HP-1 HP.
4. Torque : It is the essential parameter T= 3.15 N-m is
produced after initial torque is overcome.
5. Speed : The wheel rpm is made proportional to
engine rpm.
6. The max speed is about 51 km/hr.

17. SALIENT FEATURES
1. Pollution free.
2. Light on the pocket.
3. Helps conserve gasoline.
4. Dynamic braking.
5. Reverse rotation capability.
6. Exhaust air sent back to atmosphere.

18. DRAWBACKS
 Can’t take large load.
 Low pick-up.

19. CONCLUSION
Even though the vehicle is in its early stages
of development, It holds a lot of promise and provides scope for
further research.

20. ANY QUERIES??