The turboprop engine is a common engine type for aircraft, serving models that range from small agricultural planes to large commercial airliners. The performance provided by turboprop engine parts make them desirable for many applications as they combine the efficiency of low altitude propeller aircraft with the reliability of jet powered engines. In this blog, we will discuss how the turboprop engine functions with its various parts, allowing you to decide if it is the right fit for your needs.
As compared to engine types such as the turbofan or turbojet, air is transferred through turboprop engine parts in reverse flow. With air intakes implemented below the propeller parts, air is transported through the piping until it reaches the firewall, at which it then turns backwards. As it enters the system, air reverses its direction once again at the combustor for ignition, and this assembly allows for turboprop engine parts to be placed in a compact fashion for the benefit of construction.
When the captured air reaches the first stage of compression within the compressor, airfoil blades speed up the air in order to compress it through axial flow. Axial flow of air is dictated by the parallel movement of air in comparison of the engine shaft. With blades becoming smaller as air moves throughout the engine, air increasingly becomes compact and energized. Within the compressor blade assembly, stator parts further increase the pressure of air by transforming rotational energy into static pressure. With stator parts, the flow of air is also straightened before moving through the last axial flow compressor stage, ensuring that it is stabilized for the combustion chambers.
Once air has reached the combustor, it is mixed with fuel to increase power and is then ignited. To ensure an optimal ignition process that provides sufficient propulsion without damaging turboprop engine parts, a diffuser slows air so that it can be ignited easier. The air is then mixed with fuel through turbulence, and nozzles spray the mixture into the combustor for ignition. Once the fuel and air mixture is ignited, hot, rapidly expanding exhaust gases exit the combustor and pass through the turbine blades. Similar to the blades in the compressor, the turbine blades utilize the flow of gases from the exhaust pipes to rapidly revolve, and this energy is then harnessed for both the compressor and other engine compressor parts. Due to this method of driving the engine, turboprop engines are fairly self reliant once they begin the combustion process. Once through the compressor turbine blades, gases also pass through the engine power turbine blades, allowing for the propeller parts to be driven with more harnessed energy.
After exhaust has driven both sets of turbine blades, it needs to be ejected from the system in order to expel heat and pressure that would otherwise build up and cause issues. With exhaust pipes, spent gases are sent out of the engine and away from the aircraft. This expulsion of exhaust gases also may benefit various aircraft, as the force of gases leaving the exhaust pipes may result in an increase in thrust, often being a few percent of the entire amount of thrust created by the aircraft.
Due to their method of operation, turboprop engine parts create a savings in fuel burning per passenger as compared to turbofans and turbojets. Additionally, they are also extremely reliable and excel at short regional flights. At Internet of NSN, we carry a variety of turboprop engine parts from top manufacturers such as Pratt & Whitney, and customers can find premium propeller parts, stator parts, rotor parts, and much more with competitive pricing. Get started today with a personalized quote on the parts you are interested in when you fill out and submit an Instant RFQ form through our website.
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