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CompetenciesCompetencies List the components of an engine block.List the components of an engine block. Describe a cylinder head.Describe a cylinder head. Explain the operation and components of a crankshaft.Explain the operation and components of a crankshaft. Describe pistons and piston rings.Describe pistons and piston rings. Explain the function of connecting rods and bearings.Explain the function of connecting rods and bearings.
CompetenciesCompetencies Describe the flywheel and valve train.Describe the flywheel and valve train. Compare the operation of four-stroke cycle and two-Compare the operation of four-stroke cycle and two-
stroke cycle engines.stroke cycle engines. Describe valving systems.Describe valving systems. Explain important features of diesel engines.Explain important features of diesel engines. Explain measurement of engine output.Explain measurement of engine output.
engine component engine component fastened to the fastened to the end of the cylinder end of the cylinder block farthest from block farthest from the crankshaftthe crankshaft
head gasket is head gasket is filler materialfiller material
Flywheels and Valve TrainsFlywheels and Valve Trains
a flywheel is a disk mounted at one end a flywheel is a disk mounted at one end of a crankshaftof a crankshaft provides inertia for the engineprovides inertia for the engine maintains crankshaft rotation between maintains crankshaft rotation between
combustion intervalscombustion intervals
a valve train controls the flow of gases a valve train controls the flow of gases into and out of the combustion chamberinto and out of the combustion chamber
seal the combustion chamber to control seal the combustion chamber to control flow of air-fuel mixture into the cylinder flow of air-fuel mixture into the cylinder and exhaust gases out of the cylinderand exhaust gases out of the cylinder
commonly two valves per system, intake commonly two valves per system, intake and exhaustand exhaust
location of valve determines type of head location of valve determines type of head designdesign
injector is hydraulically activated by injector is hydraulically activated by pressurized fuel delivered by the pressurized fuel delivered by the injection pumpinjection pump
heat in glow plug is created by resistance heat in glow plug is created by resistance to current in a heating coilto current in a heating coil
What is the function of a crankshaft?What is the function of a crankshaft? A crankshaft is an engine component that A crankshaft is an engine component that
converts the linear (reciprocating) motion of the converts the linear (reciprocating) motion of the piston into rotary motion.piston into rotary motion.
What are the five events of four-stroke cycle What are the five events of four-stroke cycle engines?engines? The five events of four-stroke cycle engines are The five events of four-stroke cycle engines are
intake, compression, ignition, power, and intake, compression, ignition, power, and exhaust.exhaust.