Q. A single cylinder four stroke engine is rotating at 2000 rpm, The number of power strokes occurring in one minute
Solution:
- In 4 stroke engine one cycle complete in two revolutions.
- In one cycle only one combustion takes place. Hence number of power strokes = 2000/2 = 1000.
- The combustion stroke is the third phase, where the ignited air-fuel mixture expands and pushes the piston downwards. The force created by this expansion is what creates an engine’s power.
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