LN09 - Internal Combustion Engines MIXTURE PREPERATION in...

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1 Internal Combustion Engines MIXTURE PREPERATION in SI ENGINES Prof.Dr. Cem Soru ş bay Internal Combustion Engines Mixture Preperation ¾ Introduction – engine performance and emissions ¾ Carburettors ¾ Fuel injection systems for gasoline engines
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2 Spark Ignition Engines Simple Carburettor FLOAT CHAMBER FUEL IN FLOAT FLOAT VALVE THROTTLE VALVE AIR IN VENTURI THROAT VENTURI MAIN JET ORIFICE
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3 Simple Carburettor p p a b a m X p b p k pressure venturi throat Idle Arrangement in a Carburettor
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4 Zenith System – for fuel economy Solex System – for fule economy
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5 Mixture Enrichment – for high power operation Mixture enrichment with intake manifold pressure control Mixture Enrichment – for high power operation Mechanical system Float chamber pressure control
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6 Start-up Mechanism Enrichment by increase in fuel flow rate Acceleration Mechanism Mixture enrichment mechanisms
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7 Fuel Injection Classification of Gasoline Injection Systems Location of injection :
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LN09 - Internal Combustion Engines MIXTURE PREPERATION in...

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