10-07-2012, 12:52 PM
AIR power CAR
air power car.ppt (Size: 742.5 KB / Downloads: 68)
INTRODUCTION
The air car is powered by air engine.
It is an emission free piston engine using compressed air as the fuel.
It was invented by Guy Nègre, a French engineer; in 1991 started Moteur Developpement International (MDI) Luxembourg.
He invented a dual-energy engine running on both compressed air as on regular fuel; then managed to create a compressed air only-engine, and improved his design to make it more powerful in the 15 years.
Other people that have been working on the idea are Armando Regusci and Angelo Di Pietro. They too have companies, Rugusci started up Regusci Air and Di Pietro started up Engine Air. They are selling their engines.
ENGINE DESIGN
It uses the expansion of compressed air to drive the pistons in a modified piston engine.
Efficiency of operation is gained through the use of environmental heat at normal temperature to warm the otherwise cold expanded air from the storage tank.
This non-adiabatic expansion has the potential to greatly increase the efficiency of the machine.
The only exhaust gas is cold air (−15 °C), which may also be used for air conditioning in a car.
The source for air is a pressurized glass or carbon-fibre tank holding air at around 3,000 lbf/in² (20 MPa).
Air is delivered to the engine via a rather conventional injection system.
USES OF AIR ENGINE
Used to power an urban car with room for five passengers and a projected range of about 100 to 200 miles (160 to 320 km), depending on traffic conditions.
Main advantages are: no roadside emissions, low cost technology, engine uses food oil for lubrication (just about 1 litre, changes only every 30,000 miles (50,000 km))and integrated air conditioning.
The tanks may be refilled in about three minutes at a service station, or in a few hours at home plugging the car into the electric grid via an on-board compressor.
Gear box
Gear changes are automatic, powered by an electronic system developed by MDI. A computer which controls the speed of the car is effectively continuously changing gears .
Moto-alternator
It connects the engine to the gearbox, supports the CAT´s motor to allow the tanks to be refilled, as an alternator it produces brake power, starts the vehicle and provides extra power when necessary.