← Power Mechanics / 4 Engines
4.3 Classifications of Engines
Power Mechanics · Grade 10 · 8 lessons in the design
What this covers
- Methods of classifying engines
- By combustion, fuel, number and layout of cylinders
- By cycle of operation, and by motion
- Categorising given engines into classes
What you will be able to do
- explain the methods of classifying engines in power mechanics
- categorise given engines into different classes
- sketch the various classes of engines
- appreciate the different ways of classifying engines
Key questions
“In what different ways can engines be classified?”
Lessons
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Classifications of engines
40 min · 1 practice tasks · quizThe different ways engines are classified - by combustion process, fuel used, number of cylinders, cylinder layout, cycle of operation and motion - and how any real engine can be described under all of these at once.
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Classifying engines by combustion process
40 min · 1 practice tasks · quizInternal versus external combustion as a classification method, with Kenyan vehicles as internal-combustion examples.
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Classifying engines by fuel used
40 min · 1 practice tasks · quizPetrol, diesel, gas and electric as fuel classes, how to tell them on Kenyan vehicles, and why the wrong fuel is dangerous.
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Classifying engines by number of cylinders
40 min · 1 practice tasks · quizSingle-cylinder versus multi-cylinder engines, why more cylinders run more smoothly, and how to count them on Kenyan machines.
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Classifying engines by cylinder layout
40 min · 1 practice tasks · quizIn-line, V, flat and radial layouts: how to sketch them, and which Kenyan vehicles use which shape.
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Classifying engines by cycle of operation
40 min · 1 practice tasks · quizFour-stroke versus two-stroke: what a stroke is, which Kenyan machines use each cycle, and how to tell them apart.
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Classifying engines by motion
40 min · 1 practice tasks · quizReciprocating piston engines versus rotary (Wankel) engines, and why almost every Kenyan engine is reciprocating.
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Categorising given engines
40 min · 1 practice tasks · quizPutting all six methods on real Kenyan engines at once, and answering the inquiry: in what different ways can engines be classified?