Abstract
In close interdisciplinary cooperation with BMW Group, Boysen has developed an air-gap-insulated exhaust manifold that encompasses both banks of the 4.4 I V8 spark-ignition twin turbo engine of the BMW X5 M and BMW X6 M. The manifold merges the exhaust gas flow from the cylinders of the left-hand and right-hand cylinder banks in opposing pairs, thus optimising gas exchange. Due to improvements in response, torque and power characteristics of the engine, the cylinder-bank comprehensive exhaust manifiold helps achieve high fuel efficiency.
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Diez, R., Kornherr, H., Pirntke, F. et al. Higher efficiency with cylinder-bank comprehensive exhaust manifold. MTZ Worldw 71, 40–44 (2010). https://doi.org/10.1007/BF03227014
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DOI: https://doi.org/10.1007/BF03227014