Editing Two stroke
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[[Image:2-stroke moped smoking.jpg|200px|thumb|right|2-stroke [[moped]] smoking]] | [[Image:2-stroke moped smoking.jpg|200px|thumb|right|2-stroke [[moped]] smoking]] | ||
A '''Two stroke''' engine differs from the [[four stroke]] engine by completing the four strokes of intake, compression, combustion, exhaust in only two strokes of the | A '''Two stroke''' engine differs from the [[four stroke]] engine by completing the four strokes of intake, compression, combustion, exhaust in only two strokes of the piston rather than four. This is done by using the beginning of the compression stroke and the end of the combustion stroke to perform the intake and exhaust functions. This allows a power stroke for every revolution of the crank, instead of every second revolution as in a four stroke engine. | ||
Two stroke engines provide high specific power for lightweight [[motorcycle]]s as well as chainsaws. An example of a large application is locomotive engines of the 1800-1900s. Most designs use total-loss lubrication, with the oil being burnt in the [[combustion chamber]], causing "blue smoke" and other types of exhaust pollution. This is the major reason for two-stroke engines being replaced with four-stroke engines in most applications. | Two stroke engines provide high specific power for lightweight [[motorcycle]]s as well as chainsaws. An example of a large application is locomotive engines of the 1800-1900s. Most designs use total-loss lubrication, with the oil being burnt in the [[combustion chamber]], causing "blue smoke" and other types of exhaust pollution. This is the major reason for two-stroke engines being replaced with four-stroke engines in most applications. |