piston engines: overview and mechanical arrangement
TRANSCRIPT
Piston Engine Propulsion
Overview and Mechanical Arrangement
• What is a Piston Engine?
• - It is an internal combustion engine which produces power by controlled burning of fuel.
• A piston moves back and forth in a cylinder.• The engines power is generated by a force exerted
on the piston by the rapid expansion of the gases resulting from the combustion of a compressed fuel – air mixture.
• The power from the motion of the piston is transmitted through a connecting rod to a crankshaft, which is connected to the propeller.
Cylinder
Piston
Connecting Rod
Crank Shaft
‘Big-end’
Gudgeon Pin Main
Bearings
Offset Bearing
Counter Balance Weight
1
23
4Pistons
Crankshaft
Rear
Front
Flywheel attachment
flange
Timing Belt and Water Pump
driving pulley location
Main Bearings
Sump (Oil Tank)
‘Rocker Box’ Cover
Cylinder Block
Flywheel
Valve Gear
Crankshaft and Pistons
Exploded View of the Engine
Cylinder Head Assembly
Timing Shaft
Inlet Valve Exhaust Valve
Rocker
Rocker Shaft
Closing spring
Valve Seat
Push Rod
Cam Shaft
Inlet Valve Closed Inlet Valve Open
Valve Lift