Tailored crankshaft design from early development phase on
During the last decade the pressure for improving the development process of new passenger car combustion engines has been raised a lot. The European Union (EU) has legislated that the CO2 fleet emissions have to be reduced to an average of 95 g/km in the New European Driving Cycle (NEDC) until 2020 and even further reduced in subsequent years. In parallel, NOx emissions and fuel consumption need to be decreased. Heading for achieving these targets, reduction of internal friction is one of the main objectives. Therefore, downsizing has prevailed for internal combustion engines (ICE) of passenger cars in recent years. But the continuous downsizing trend is associated with the increase of specific loads. Consequently, the demands related to engine mechanics have risen.
KeywordsCompressive Residual Stress Internal Combustion Engine Rolling Force Main Bearing Bend Fatigue Test
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