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- Straight-eight_engine abstract "The straight-eight engine or inline-eight engine is an eight-cylinder internal combustion engine with all eight cylinders mounted in a straight line along the crankcase. The type has been produced in side-valve, overhead-valve, sleeve-valve, and overhead-cam configurations.A straight-8 can be timed for inherent primary and secondary balance, with no unbalanced primary or secondary forces or moments. However, crankshaft torsional vibration, present to some degree in all engines, is sufficient to require the use of a harmonic damper at the accessory end of the crankshaft. Without such damping, fatigue cracking near the rear main bearing journal may occur, leading to engine failure.Although an inline six cylinder engine can also be timed for inherent primary and secondary balance, a straight-8 develops more power strokes per revolution and, as a result, will run more smoothly under load than an inline six. Also, due to the even number of power strokes per revolution, the straight-8 does not produce unpleasant odd-order harmonic vibration in the vehicle's driveline at low engine speeds.The smooth running characteristics of the straight-8 made it popular in luxury and racing cars of the past. However, the engine's length demanded the use of a long engine compartment, making the basic design unacceptable in modern vehicles. Also, due to the length of the engine, torsional vibration in both crankshaft and camshaft can adversely affect reliability and performance at high speeds. In particular, a phenomenon referred to as "crankshaft whip," caused by the effects of centrifugal force on the crank throws at high engine rpm, could cause physical contact between the connecting rods and crankcase walls, leading to the engine's destruction. As a result, the design has been displaced almost completely by the shorter V8 engine configuration.".
- Straight-eight_engine thumbnail Delage_engine.JPG?width=300.
- Straight-eight_engine wikiPageExternalLink index.html.
- Straight-eight_engine wikiPageExternalLink www.histomobile.com.
- Straight-eight_engine wikiPageID "200044".
- Straight-eight_engine wikiPageRevisionID "600304183".
- Straight-eight_engine hasPhotoCollection Straight-eight_engine.
- Straight-eight_engine subject Category:Piston_engine_configurations.
- Straight-eight_engine type Abstraction100002137.
- Straight-eight_engine type Arrangement105726596.
- Straight-eight_engine type Cognition100023271.
- Straight-eight_engine type Configuration105731779.
- Straight-eight_engine type Design105728678.
- Straight-eight_engine type PistonEngineConfigurations.
- Straight-eight_engine type PsychologicalFeature100023100.
- Straight-eight_engine type Structure105726345.
- Straight-eight_engine comment "The straight-eight engine or inline-eight engine is an eight-cylinder internal combustion engine with all eight cylinders mounted in a straight line along the crankcase. The type has been produced in side-valve, overhead-valve, sleeve-valve, and overhead-cam configurations.A straight-8 can be timed for inherent primary and secondary balance, with no unbalanced primary or secondary forces or moments.".
- Straight-eight_engine label "Motor de oito cilindros em linha".
- Straight-eight_engine label "R8 (silnik)".
- Straight-eight_engine label "Straight-eight engine".
- Straight-eight_engine label "Восьмицилиндровые двигатели".
- Straight-eight_engine label "直列8気筒".
- Straight-eight_engine sameAs 直列8気筒.
- Straight-eight_engine sameAs R8_(silnik).
- Straight-eight_engine sameAs Motor_de_oito_cilindros_em_linha.
- Straight-eight_engine sameAs m.01cdwl.
- Straight-eight_engine sameAs Q2479238.
- Straight-eight_engine sameAs Q2479238.
- Straight-eight_engine sameAs Straight-eight_engine.
- Straight-eight_engine wasDerivedFrom Straight-eight_engine?oldid=600304183.
- Straight-eight_engine depiction Delage_engine.JPG.
- Straight-eight_engine isPrimaryTopicOf Straight-eight_engine.
