Farm Power · Farm Power · 1 mark · Numerical answer
A single-cylinder four-stroke diesel engine displaces 9 L, runs at 2400 rpm and has volumetric efficiency 88%. Find actual inducted air volume in m³/s, to three decimals.
A four-stroke engine has one induction stroke per two revolutions. The theoretical intake is $.009(2400)/(2\times60)=.180$ m³/s. Apply volumetric efficiency: $.88(.180)=.1584$ m³/s, or **.158 m³/s**.
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