Turbochanger system for internal combustion engine comprising two compressor stages of the radial type provided with compressor wheels having backswept blades
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United States of America Patent
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May 10, 2011
Grant Date -
Jun 15, 2006
app pub date -
Nov 15, 2005
filing date -
May 15, 2003
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Abstract
A turbocharger system for an internal combustion engine having at least one exhaust line for evacuating exhaust gases from the combustion chamber of the engine and at least on inlet line for supplying air to the combustion chamber. A high-pressure turbine interacts with a high-pressure compressor and a low-pressure turbine interacts with a low-pressure compressor to extract energy from the exhaust flow of the engine and pressurize the inlet air of the engine. Both compressor stages are of the radial type and are provided with compressor wheels having backswept blades, in which a blade angle between an imaginary extension of the blade along the centerline between root section and tip section in the direction of the outlet tangent and a line connecting the center axis of the compressor wheel to the outer point of the blade, is at least about 40 degrees.
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