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Two Stroke Engine

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Date :02 April 2009	Views :236
Votes :0	Rating :0

A two-stroke engine is an internal combustion engine which completes the thermodynamic cycle in two movements of the piston (compared to twice that number for a four-stroke engine). This increased efficiency is accomplished by using the beginning of the compression stroke and the end of the combustion stroke to simultaneously perform the intake and exhaust functions. Since the two stroke engine fires on every revolution of the crankshaft, a two stroke engine is usually more powerful than a four stroke engine of equivalent size. This, coupled with their lighter, simpler construction, makes the two stroke engine popular in chainsaws, line trimmers, outboard motors, snowmobiles, jet-skis, light motorcycles, and model airplanes. Unfortunately, most two stroke engines are inefficient and are terrible polluters due to the amount of unspent fuel that escapes through the exhaust port. [More] [Less]

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