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1 Engine Types and Operation

Mar 10, 2016

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Arsalan Ahmad

Internal Combustion Engines by John B. Heywood (Lecture Slides)
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  • 1TOPICEngine types and operation

  • *Cylinder GeometryExhaust manifoldand ValveStroke, LBDCTDCVtVcVdBore, BIntake manifoldand ValvelCrank Radius, aConnecting RodLengthq

  • *Cylinder GeometryExhaust manifoldand ValveStroke, LBDCTDCVtVcVdBore, BIntake manifoldand ValvelCrank Radius, aConnecting RodLengthq Compression ratioDisplaced (swept) volume

  • * Operating Cycles4-stroke cycle: Requires two complete revolutions to complete a cycle2-stroke cycle: Requires one complete revolution to complete a cycle

  • Four-stroke operating cycle*

  • */27*/InletExhaustFour-stroke operating cycle

  • Two-stroke operating cycle*

  • */27*/Two-stroke operating cycle

  • Application (road, railroad, airborne, utility, stationary)Design (reciprocating, rotary)Cycle (four-stroke, two-stroke, naturally aspirated, supercharged)Valve Design and Location (overhead, underhead )Fuel (gasoline, diesel, CNG, LPG)Fuel/Air Mixing (carburetor, fuel injection)Ignition (spark, compression)Combustion Chamber design (open, divided)Load Control (fuel control, fuel/air mixture control)Cooling (water, air, uncooled)Engine Classifications*

  • * Spark Ignition Engines

  • * Spark Ignition Engines

  • * Spark Ignition Engines

  • Single point fuel injection

  • Multipoint port fuel injection

  • Direct injection in SI engines

  • * Compression Ignition Engines

  • * Compression Ignition Engines

  • * Compression Ignition Engines

  • Compression Ignition Engines*

  • Engine Classifications

  • Engine Classifications