A project report by: Shibam Sarbswa

Rudraksha ShuklaManish Chourassia

Karan SinghTajvendra Rawat

Under the mentorship of : Sadaf Akhtar

ABSTRACTABSTRACT

A compressed-air vehicle is powered by an air engine, using compressed air, which is stored in a tank. Instead of mixing fuel with air and burning it in the engine to drive pistons with hot expanding gases, compressed air vehicles (CAV) use the expansion of compressed air to drive their pistons. One manufacturer claims to have designed an engine that is 90 percent efficient.

These days our world is facing fuel crisis and air pollution. The primary fuel we are using is gasoline which is expensive and non-

renewable. So an alternative for gasoline has to be adopted. Compressed air serves this

purpose.

• Our project is working in 24V dc current, we divide this current into two part.• The Solenoid coil, one wire of the 4-coil (negative) is attach with dick and

positive current is transmit by motor with its connecting shaft.• Dc motor regulating supply, second 24V dc supply is going to step down

transformer through fan regulator for regulate supply. This transformer converts 12V dc to 12 dc supply. Now we fix one bridge rectifier to convert ac to dc 12v supply for motor. When we operate fan regulator, motor rotate slow and fast to transmit ac current to solenoid coil.

• We used Solenoid valve for transmit compressed air to the cylinder for 4 stroke rotation

• In ON condition Solenoid valve air inlet hole are B and D and outlet hole are E and A. due to this cylinder expended

• Normally in off condition Solenoid valve air inlet hole are B and E and outlet hole are D and C. due to this cylinder squeeze

WORKINGWORKING

• We weld two crankshafts and connect pneumatic cylinder with them and fix them on body frame with the help of bearing. We weld one sprocket on the right side of crank shaft to transfer its rotation to gear box.

• Now we connect 4 solenoid coil with pneumatic cylinder for provide 4 stroke (every coil provide 90 degree rotation when current pass through them).

• We connect 1:4 gear box with crankshaft for convert crank speed in to wheel torque motion, due to this our project is easily move on surface.

• Now we take one special dc gear motor (motor shaft is not directly connected with motor, so we are transmit ac current to the coil from that shaft) and fix it with circular dick and this motor transmit ac supply to coil.

MATERIALS & METHODMATERIALS & METHOD

One can buy the vehicle with the engine or buy an engine to be installed in the vehicle. Typical air engines use one or more expander pistons. In some applications it is advantageous to heat the air, or the engine, to increase the range or power.

TanksThe tanks must be designed to safety standards appropriate for a pressure vessel. The storage tank may be made of:SteelCarbon fiberAluminumKevlarOther materials or combinations of the above.

MATERIALS & METHODMATERIALS & METHOD

The fiber materials are considerably lighter than metals but generally more expensive. Metal tanks can withstand a large number of pressure cycles, but must be checked for corrosion periodically.

One company stores air in tanks at 4,500 pounds per square inch (about 30 MPa) and hold nearly 3,200 cubic feet (around 90 cubic meters) of air.

The tanks may be refilled at a service station equipped with heat exchangers, or in a few hours at home or in parking lots, plugging the car into the electric grid via an on-board compressor.

CRANK SHAFTCRANK SHAFT

We arrange one crank shaft with two wheeler scooter

BALL BEARINGBALL BEARING

We fix two ball bearings on both side of crankshaft as shown in above diagram

SOLENOID VALVE

Normally in off condition Solenoid valve air inlet hole are B and E and outlet hole are D and C. due to this cylinder squeeze

COMPRESSED AIR COMPRESSED AIR

In ON condition Solenoid valve air inlet hole are B and D and outlet hole are E and A. due to this cylinder expended

2 CRANKSHAFTS & CYLINDER

We weld two crankshafts and connect pneumatic cylinder with them and fix them on body frame with the help of bearing. We weld one sprocket on the right side of crank shaft to transfer its rotation to gear box.

CONNECT 4 SOLENOID COILCONNECT 4 SOLENOID COIL

Now we connect 4 solenoid coil with pneumatic cylinder for provide 4 stroke (every coil provide 90 degree rotation when current pass through them).

POWER TRANSMISSION

The most important part of the project is power transmission system. As per above information we are using 4 solenoid coil in our project and these coil are act as 4 stock transmission, we are using a simple technique to transmit the same power. We take one circular wooden piece and divide that circle in to four parts as shown below diagram, these for piece are metallic cutouts.

Now we take one special dc gear motor (motor shaft is not directly connected with motor, so we are transmit ac current to the coil from that shaft) and fix it with circular dick and this motor transmit ac supply to coil.

SINGLE ACTING CYLIDER

Single acting cylinders (SAC) use the force imparted by air to move in one direction (usually out), and a spring to return to the "home" position

DC MOTOR

The advantages are well publicized since the developers need to make their machines attractive to investors. Compressed-air vehicles are comparable in many ways to electric vehicles, but use compressed air to store the energy instead of batteries. Their potential advantages over other vehicles include:

Compressed-air vehicles are unconstrained by the degradation problems associated with current battery systems.

Lighter vehicles would mean less abuse on roads. Resulting in longer lasting roads.

The price of fueling air-powered vehicles will be significantly cheaper than current fuels.

AdvantagesAdvantages

DISADVANTAGES

• It has relatively less speed

• Refueling takes 3-4 hours

• Compressor require external source to run

CONCLUSIONCONCLUSION

There are many applications of mechatronics in the mass produced products used in the home. They are to be found in cars in the active solenoid valve, air compressor, piston, engine control, speed control through volume regulator etc.

Pollution is one of the major problems faced by the peoples in a routine life. Increasing use of different types of automobile plate and important role to create this big problem, several affords are made by the automobile sector to solve this big problem. Our project, electric system will be very effective to reduce this problem in a cheaper way.

Air is alternative than other fuels so during our study we appreciated the importance of electric conversion and found that it is really helpful in controlling the pollution and also less expensive than the petrol