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450 power strokes per-minute

450/60=7.5 power stokes per second

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Q: If the crankshaft of a two stroke engine is rotating at 900 rpm how many power strokes occur each second?
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If the crankshaft of a two stroke engine is rotating at 900rpm how many power strokes occur each second?

Two stroke engines have one power/exhaust stroke and one intake/compression stroke per revolution per cylinder. A One cylinder engine at 900rpm produces 15 power strokes per second.


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Your 4 strokes are Intake, Compression, Power, and Exhaust. On the first revolution is Intake on the down stroke, then compression on the up stroke, the next revolution is power on the down stroke and exhaust on the up stroke, so 2 revolutions complete a full cycle. That would mean 450 power strokes occur per minute, divide that by 60 to get 7.5 power strokes per second


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