Two Kinds Of Piston Engines
Wednesday, September 9, 2009
, Posted by Subru at 7:46 PM
There are two kinds of piston engines.Spark ignition ignition and Compression ignitionThe difference between the two are:
- The type of fuel used
- The way the fuel gets into the engine cylinders
- The way the fuel is ignited
The spark ignition engine uses a highly volatile fuel which turns to vapour easily,such as gasoline or gasohol.The fuel is mixed with air before it enters the engine cylinders.The fuel turns into a vapour and mixes with the air to form a combustible air fuel mixture.This mixture then enters the cylinders and is compressed.Next an electric spark produced by the ignition system sets fire to,or ignites,the compressed air fuel mixture.In the compression ignition or diesel, engine, the fuel is mixed with the air after the air enters the engine cylinder.Air alone is taken into cylinder of the diesel engine.The air is then compressed as piston move up.The air is compressed so much that its temperature goes up to 1000 degree F or higher.Then the diesel engine fuel a light oil is injected into engine cylinder.The hot air. or heat of compression,ignites fuel.This is why the diesel engine is called a compression ignition.
Currently have 0 comments: