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INTRODUCTION
The vehicle uses fluid system instead of the Internal
Combustion engine.
Will help save the non-renewable sources of energy.
Will aid in reducing the problem of global warmingsince two wheelers contribute to the problem the most.
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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.
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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 thewheel into analog signal.
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Analog signals are sent to relays thereby playing
an immigrant part in switchover of power from
electric motor to pneumatic cylinder.
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Pneumatic Cylinder
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.
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Index Of Pneumatic System
PART NO. PART NAME
1 4/3 SOLENOID
2,3 SOLENOID
4 CYLINDER
5 PISTON
6,7 REED SWITCHES8 CONNECTING
ROD
9 CRANK SHAFT
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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.
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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.
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Braking is used to stop the vehicle at
instantaneous hindrances.
Is achieved by the metering valve which
completely stops the air flow.
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Optimal design is achieved by
considering the various design
parameters.
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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.
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3. Power : The power delivered after initial
torque is overcome is about 0.89 HP-
1 HP.
4. Torque : It is the essential parameter
T= 3.15 N-m is produced after initialtorque is overcome.
5. Speed : The wheel rpm is made proportional
to engine rpm. The max speed is about 51 km/hr.
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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.
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Conclusion
Even though the vehicle is in its early stages ofdevelopment, It holds a lot of promise andprovides scope for further research.
Now the responsibility is entrusted upon us asengineers of tomorrow to develop the concept
and make it feasible so that it reaches thecommon man and we get a better environmentto live in.
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References
www.ourworld.compuserve/v-4engines.htm
http://www.menet.umn.edu/haichIengine/intro
.html
http://www.billzilla.org/engother.htm
http://www.vok.lth.se/CE/research/HCCI/iH
CCIuk.html
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Thank You
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