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Spark plug with single side electrode An electric spark on the spark plug. A spark plug (sometimes, in British English, a sparking plug, [1] and, colloquially, a plug) is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture by an electric spark, while containing combustion pressure within ...
Animation of a two-stroke engine. A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes of the piston (one up and one down movement) in one revolution of the crankshaft in contrast to a four-stroke engine which requires four strokes of the piston in two crankshaft revolutions to complete a power cycle.
Pressure in cylinder pattern in dependence on ignition timing: (a) - misfire, (b) too soon, (c) optimal, (d) too late. In a spark ignition internal combustion engine, ignition timing is the timing, relative to the current piston position and crankshaft angle, of the release of a spark in the combustion chamber near the end of the compression stroke.
A Jabiru 5100 flat-8 four-stroke aircraft engine with dual ignition, with two spark plugs per cylinder and two distributors. Dual Ignition is a system for spark-ignition engines, whereby critical ignition components, such as spark plugs and magnetos , are duplicated.
The coilpack fires the spark plugs in two cylinders simultaneously so for example 1&4/2&5/3&6 cylinders fire together, the spark plug in one cylinder on a compression stroke is where the power comes from, and the spark plug in the other cylinder on an exhaust stroke does nothing. Coils in a wasted spark system may be in pack form, or they may ...
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A four-stroke spark-ignition engine is an Otto cycle engine. It consists of following four strokes: suction or intake stroke , compression stroke , expansion or power stroke , exhaust stroke . Each stroke consists of 180 degree rotation of crankshaft rotation and hence a four-stroke cycle is completed through 720 degree of crank rotation.