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Variable-geometry turbochargers (also known as variable-nozzle turbochargers) are used to alter the effective aspect ratio of the turbocharger as operating conditions change. This is done with the use of adjustable vanes located inside the turbine housing between the inlet and turbine, which affect flow of gases towards the turbine.
Diesel engines are typically well suited to turbocharging due to two factors: A "lean" air–fuel ratio, caused when the turbocharger supplies excess air into the engine, is not a problem for diesel engines, because the torque control is dependent on the mass of fuel that is injected into the combustion chamber (i.e. air-fuel ratio), rather than the quantity of the air-fuel mixture.
Automotive turbochargers are turbine-driven induction devices, which amplify the engine efficiency and output of IC engines. These devices are deployed to direct more fuel into the combustion chamber in case the atmospheric pressure of the vehicle fails to keep up with the desired output.
A turbocharger for a car engine A supercharger (on top of a dark-grey inlet manifold) for a car engine. In an internal combustion engine, forced induction is where turbocharging or supercharging is used to increase the density of the intake air.
But every 10% reduction in weight correlates to a 6% increase in fuel economy. The auto industry can't keep offering vehicles built with the same materials they have for decades.
'SuperTruck' Yields 54 Percent Increase in Fuel Economy COLUMBUS, Ind.--(BUSINESS WIRE)-- Cummins Inc. (NYS: CMI) and Peterbilt Motors Company, a division of PACCAR (NAS: PCAR) , released test ...