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Copyright © PracticalStudent.com The Four Stroke Engine – Whole Engine
Copyright © PracticalStudent.com The Four Stroke Engine – Stroke by Stroke
Copyright © PracticalStudent.com The Four Stroke Engine - Inventor The 4 Stroke Engine was invented by Nicholas Otto in It was originally designed as a stationary engine.
Copyright © PracticalStudent.com The Four Stroke Engine - Intake Often called the Induction Stroke. The Inlet Valve is open. The Exhaust Valve is closed. Air/Fuel mixture is sucked and injected in. Piston is moving down.
Copyright © PracticalStudent.com The Four Stroke Engine - Compression Inlet and Exhaust Valves closed. Piston is moving up. Air/Fuel mixture is being compressed in the cylinder.
Copyright © PracticalStudent.com The Four Stroke Engine - Combustion Often called the Power Stroke. Inlet and Exhaust Valves closed. A spark from the Spark Plug ignites the Air/Fuel mixture causing rapid combustion pushing the piston down.
Copyright © PracticalStudent.com The Four Stroke Engine - Exhaust Inlet Valve closed. Exhaust Valve open. Piston moving up pushing the exhaust gases out.
Copyright © PracticalStudent.com The Four Stroke Engine – All Together
Copyright © PracticalStudent.com The Four Stroke Engine - Parts See Pgs (OB) See Pgs (NB)
Copyright © PracticalStudent.com The Four Stroke Engine - Layouts
Copyright © PracticalStudent.com The Four Stroke Engine – Inline-4
Copyright © PracticalStudent.com The Four Stroke Engine – Boxer-4 / Flat-4
Copyright © PracticalStudent.com The Four Stroke Engine – V6
Copyright © PracticalStudent.com The Four Stroke Engine - Advantages Compared to 2 Stroke : Better fuel economy More Torque Better durability Cleaner emissions
Copyright © PracticalStudent.com The Four Stroke Engine - Disadvantages Compared to 2 Stroke : Less powerful Much more complicated Lower revs More expensive
The 4-Stroke Engine Spark Plug InletValve Exhaust Valve CylinderPiston The 4-stroke Engine.
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A cylinders displacement is the volume of the cylinder when the piston is at BDC. It is the sum of the displacement of each cylinder. It is.
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The piston descends from the top of the cylinder to the bottom of the cylinder, reducing the pressure inside the cylinder. A mixture of fuel and air,
The Diesel Engine The Combustion Cycle The four-stroke combustion cycle of the diesel engine is composed of the intake stroke, compression stroke, power.
Four- Stroke Small Engines Transportation Mr. O. Components Recoil Start- Pull start system, connects to flywheel/crankshaft. Flywheel- Large wheel mounted.
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