Post on 07-Apr-2018
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PNEUMATIC BIKEPNEUMATIC BIKE
-By Atul Gosavi
-Guided by Prof. N.P. Jadhav
EMINARON
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A b ike w h ich u se p re ssu rize a ir a s a fu e l.is k n o w n a s p n e u m a tic b ike s
. .I C p o w e r e n g in e s a re re p la ce d b y flu id.p o w e r T h e p o w e r sy ste m in th e v e h icle is
n ot b y co m b u stio n o f fu e lb u t b y m e a n s
( ).o f p re ssu rize d flu id p o w e r a ir If w e a rra n g e th e w h o le sy ste m in a.p a rticu la r m a n n e r th e n w e ca n a ch ie v e it
HAT IS PNEUMATIC BIKE
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OBJECTIVES To replace the conventional two wheeler
.power source by fluid power source
To meet environment pollution and.regulation act To save the economy of the nation and as
.well as every individual
.To bring zero pollution factor
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:oncept of pneumatic engine
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CONSTRUCTIONBasic set up consist of four parts
COMPRESSOR The compressor has a motor whose supply is.fed from a rechargeable battery The air compressor increases the pressure
of gas by reducing the volume of gas as
.described by the perfect gas laws
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Battery
Motor haindriveTorque
ensor
crank od
peedControllerPressureboosterirfilte
rotor Compressor
.relief
valve
Drain ATM
Muffler
uickexhaus
valve
ECUPneumaticcylinder
Directincontroledvalve
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LECTRIC MOTOR : Electric motor is a rotary actuatorwhich is used initially to drive the
vehicle to overcome the initial torque.required to drive the vehicle with load
Once the vehicle gains the initialmomentum and the running torque and a( / ),stipulated speed say 20 km hr the power
system is switched over to the pneumatic
.system from the electrical
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This is achieved by simple relay
.operation & (NC NO RELAY NORMALLY CLOSED AND OPENED) -RELAY The NC 1 relays which feeds thesignal from the torque sensor whose signal
-is of the analog form and therefore NC 1- . .becomes NO 1 i e no longer motor is used.to drive the system
,Similarly signal from the other end from
-the same sensor is fed to NO 2 there by- - .making NO 2 as NC 2 Therefore the relay operation acts as a
.bridge for switching the power system
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TORQUE SENSOR:- Torque sensor is a transducer which
converts the torque acting on the wheel
.into analog signal The signal is thensend to the relays and thereby playing animmigrant part in switching over the power
.from motor to cylinder
The cylinders which now start.reciprocating become the drive source
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The sensor picks up the pressure causedby the cylinder during extension and.retraction The signal from the sensor is
fed to solenoid valve which subsequently
shifts the ports based on the side the.signal is fed to the valve
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NEUMATIC CYLINDER :- Pneumatic cylinder is made to
reciprocating continuously by means of reed
( ).switches sensor The reed switches are of high precisionand resolution thereby giving approximately
/ .450 strokes min
The pneumatic cylinder is prime actuatoronce the power system transfers to.pneumatic system
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neumatic Cylinder
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ORKING METHODOLOGY The principle of generation of power ina two wheeler is by means of fluid power
and there by replacing the power system of.conventional engine This is achieved by the continuous
reciprocation of pneumatic cylinder where
its rod ends are linked to the crank of an.engine
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The linear reciprocation of cylinder is
.converted into a rotary motion The vehicle runs on the power produced
.by the air
The fluid hitch is the main source of.supply is sent in the pressurized formThe fluid is compressed in the rated
pressure to the rated pressure for the
.desired power
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neumaticBikes
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SPEED AND BRAKING
Speed is regulated by means of meteringvalve which meters the flow of the air.inside the cylinder
The valve can be used to regulate the
.flow to increase and as well as decrease The regulation would give the speed.variation or the vehicle
Braking is achieved to stop the vehicle
at the instantaneous hindrances.
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This is achieved by metering the valve.which completely stops the air flow Note once the torque increase the motor
,is employed so in order to stop this the
hand brake is applied which act as switch,between the supply and the motor.eventually cutting of the supply
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:-MECHANISM
The design mechanism is the key part in.achieving it The arrangement is in such a way that
linear motion of the pneumatic cylinder is
converted into rotary motion by connectingthe rod end of the cylinder to the crank.of engine
The entire head of the engine is
dismantled and only the crank rod is taken.along with the chain sprocate
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Power stroke obtained is directly
proportional to the pressure at which the.air is sent
This is an effort to substitute and
optimize the conventional design of the
vehicle to simple and lighter construction.
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ADVANTAGES:-
As air is used as a fuel it produces zero.pollution these bikes are ecofriendly
,Silent in operation thus reduces noise
.pollution .These bikes are light in weight It reduces the consumption of natural
,fuels like petrol diesel etc.
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:-ISADVANTAGES ( - / ).Less speed up to 60 70 km h .Frequent maintenance is required It has a high cost.
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CONCLUSION:-
We hope this paper gives a vision of whatextent we engineers can value to this.nation
. .Thus if we replace conventional I C powersystem by fluid power system then it is
.always beneficial to us
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HANK YOU