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MANN+HUMMEL has developed a centrifugal oil cleaner focused on the separation of soot from oil. The basic setup and operation principle of a free jet driven centrifugal oil cleaner and its integration into an engine oil system will be explained. The development was supported by a new simulation tool, which predicts the centrifugal cleaner performance using computer analysis. This includes both the prediction of rotor speed and particle separation. Additionally, MANN+HUMMEL performed a detailed rotor design analysis in order to reduce torque resistance, to improve environmental protection and reduce cost.

The design principles for air intake systems (consisting of an air filter, intake manifold, resonators and air hoses) of passenger cars and the components themselves have changed in the past due to changes in customer requirements and legislation. The intake system components, for the most part, are still developed as single parts, not as a common intake system. The interactions within the complete system, concerning gas dynamics, acoustics and other aspects, are often only considered in a late development stage. To fulfill future demands, changes in the intake system development process and changes in intake system technology are necessary. This will be shown by examples.