teching Craftsman DM17-S-T, Описание продукта

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V. Basic principle of piston engine
1. Piston moving down → taking in air and gasoline;
2. Piston moving up → compressing the mixture;
3. Piston moving down → igniting the compressed gas; which
burns and expands to drive the piston;
4. Piston moving up → discharging exhaust gas
As shown below:
Intake Compression Working Exhaust
When the single-cylinder engine is working, for every two turns
of the crankshaft, the piston makes 4 straight-line reciprocating
motions in the cylinder to complete a working procedure (4
strokes), the mixture in the cylinder is ignited, and the bursting gas
pushes the piston to make the crankshaft rotate via the crankshaft
connecting rod, realizing the straight-line reciprocating motion of
the piston in the cylinder. The continuous vertical motion of the
piston turns into the continuous rotary motion of the crankshaft
to output power continuously and make the engine run normally.
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