RECENT DEVELOPMENTS IN JET ENGINES

Even before the World War –II, piston engines are used in aircrafts. But Engineers found that these piston engines are self-limiting in terms of maximum power & performance. This has been overcome with the invention of Jet engines.

            Jet engines were mainly developed by Mechanical Engineers, Dr. Hans Von Ohain and Sir Frank White. A jet engine is a reaction engine that discharges a fast moving jet to generate thrust by jet propulsion and in accordance with Newton's laws of motion. Jet engines may commonly refer under Internal Combustion (IC) Engines. A jet engine mainly works on the principle of "Brayton cycle”. The jet engines are broadly classified into two types. (i) Air breathing engines and (ii) Non-Air breathing engines. Turbo Jet,Turboprop, and Turbofan classified under Air breathing engines. Rockets come under Non-Breathing engines.

            Turbo Jet engines are mainly used to drive  aircrafts and  boats. Turbo Prop Jet engines are used to run Electric generators in a general electric Companies. A Jet engine is a gas turbine engine that works by compressing air with an inlet and a compressor, mixing fuel with the compressed air, burning the mixture in the combustor, and then passing the hot, high pressure air through a turbine and a nozzle. The Turbo Jet  engines travels with sonic velocities.

            But, a new advanced Jet engine came onto screen. That new advanced technology is RAM JET engines. By using these engines we can overcome the disadvantages of  normal  jet engines(Turbo Jet). RAM JETS travels with supersonic velocities. Based on these SCRAM JET and PULSE JET came into existence. Many recent developments came up based on the RAM JET engines, but most of them are under development.  These all new techniques are simple in construction and cheap when compared to normal jet engines. So, Scientists are working to develop these new advanced techniques.