lundi 29 juillet 2013

Some Great Tips On Turbo Diesel Engines

By Dwayne Miller


A four stroke cycle engine that is turbocharged is generally referred to as a turbo diesel. This type of engine is extremely popular because of its increased volumetric efficiency resulting in a higher power output when compared to a naturally aspirated engine of similar size. The turbocharger two main components are the turbine and the compressor.

This machinery is considered extremely versatile. The mining industry is one entity that utilizes this type of engine extensively. Other industries in which it is widely used include maritime and automotive. It is also used on trains and for electricity generation.

The four strokes of the cycle are induction, compression, power and exhaust. The turbocharger is driven by waste gas exiting the engine. Volumetric efficiency is achieved when the intake air is compressed by the turbocharger. This forces a greater volume of air into the cylinder during the induction stroke.

Before the exhaust gas is emitted into the atmosphere it flows through the turbocharger turbine casing that is attached to the exhaust manifold. The turbine and compressor are housed separately but are connected to the same freely rotating shaft. This allows for the exhaust gas to drive the turbine, resulting in the air being compressed.

The compressor housing is connected to the intake air manifold. Upon commencement of the induction stroke the compressed air is forced into the cylinder. Unlike an engine that is aspirated naturally which depend solely on the pistons' downward movement for its supply of air.

A turbo diesel engine carbon dioxide emission is said to be less although it releases more exhaust when compared to a gasoline engine. This reduction in emission may also be partly because of the recycling of the exhaust gas. The loudness of this engine is said to be vastly reduced by containing vibration and piston slap.




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