Experimental investigation of catalytic coating under engine relevant conditions

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Basic Information

01.01.2019 to 31.12.2025
Organizational Unit:
Combustion Fundamentals
German Research Foundation (DFG)

Research partner



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Modern gasoline engines should achieve maximum efficiency and minimum pollutant emission. For this, exhaust gas recirculation and lean engine operation are essential, but also enhance the phenomenon of flame quenching at cold cylinder walls. This phenomenon then results in the flame being unable to penetrate certain combustion chamber regions, leading to undesirable exhaust emissions. As part of the Cluster of Excellence "The Fuel Science Center", a new concept is therefore the subject of research, that involves thermal and catalytic coating of the cylinder wall to strongly reduce such emissions. After the coating development process at the IAC (RWTH) and IEK-1 (Forschungszentrum Jülich), the coatings are investigated in a combustion chamber at the HGD using unique heat flux measurements and high-magnification schlieren images. The results are then used to preselect promising coatings, which are in turn tested in the single-cylinder engine at VKA (RWTH)