Understanding The Operation And Functions Of Aircraft Engine Accessories

The engine plays the biggest role in flying of planes. It converts the chemical energy in the fuel into mechanical energy or motion. In simple terms, it pushes the plane forward during flight. The wings are responsible for providing lift and controlling the flight path. Gravity and friction are the natural forces that usually oppose flight. The following is an outline of aircraft engine accessories.

There are several types of engines based on the mode of operation. Each type has its advantages and limits which apply to different situations. The most common types are the turbojet and turboprop engines. They fall under reaction engines. Another category is the piston engines. They are similar to the automotive engines but were replaced due to their weight issues.

Some examples are the electric engines, ramjets, rockets, Wankel and the radial piston power sources. Each type has unique properties that allow its use for different situations. In the aviation world, the target is to be able to fly over longer distances while economizing on the use of fuel. Research and studies have helped in producing some of the most sophisticated engines. This is by redesigning the accessories to improve their standards and effectiveness.

Turbojets and turboprops are grouped under reaction engines. Their cycle begins at the air inlet where the air is inhaled and compressed through multistage compressors. The inlet duct is an essential accessory that optimizes the air flow to prevent energy losses. After compression, the air is combined with fuel and delivered to the combustion zone. This is assisted through the use of pipes and carburetors. A spark plug or burner ignites the mixture to give out streams of gases.

Whether it is a turboprop or a turbojet, both engines have the same internal configuration. There are three regions which are the compressors, combustors and turbines. The only difference is that a turboprop uses rotors and propellers to produce the driving force while a turbojet uses the exhaust gas streams to create the thrust. Various systems assist in controlling the functioning of the components. For instance, the fuel and ignition systems.

The first zone, namely the compressors, is where air from the atmosphere is drawn in. It is then compressed using a multistage compressor that is made of rotating blades mounted on the axial shaft. A duct at the entrance ensures smooth air flow. The compressors receive power from the turbines through the axial shaft. The compressed air is passed to the combustors where it is mixed with fuel and ignited continuously and passed to the turbines.

Mixing air and fuel requires pumps and injectors. The ignition system also has its unique accessories. The expansion process that takes place inside the turbine is very important as it uses some energy to power the engine and the rest for thrust. These means that the turbines have their accessories such as afterburners, nozzles, sensors and manifolds.

These accessories are classified into the following categories. These are the alternator, carburetor, controllers, engine mounts, fuel system, ignition kits, filters and drain systems, starters, spark plugs, turbochargers and pumps.