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Jet and gas turbine engines

Although an internal combustion engine by definition, both jet and gas turbine engines are a completely different approach to igniting fuel to make things move.

No car has successfully gone into production with jet engines, yet that hasn’t stopped a few manufacturers trying different ideas.

For example, in the 1950s Rover produced Jet 1 - a gas turbine powered car, which could run on petrol, diesel or paraffin. However, jet cars not only had fuel consumption higher than was practical, but the jet engine itself it not a practical power source for the automobile, due to the need for very quick variations in speed.

In recent years, Jaguar Land Rover designed a concept (CX75), which used the gas turbine as part of a hybrid system that would overcome this problem to some extent if put into production.

A gas turbine works in quite a simple manner. It works by taking in air through a compressor, which increases the pressure and temperature. Fuel is then added in spray form and ignited to create an increase in pressure and heat. This creates a flow which travels into a chamber with a turbine fan, which is turned by the flow. The gasses pass through the chamber and out of the exhaust channel at the other end. This creates a rotational force in the turbine and a main propulsion force through the exhaust.

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