“Unrestricted clean mobility” is the goal of the development of modern,future powertrain systems. The focus is on robust exhaust gas aftertreatment in theentire engine map with simultaneous CO2 reduction supported by electrification. Highly effective combustion engines, turbocharged with high efficient catalytic converter technology and the latest engine management control are the basic prerequisites for achieving this goal. The ring-catalytic converter, originally developed for truck and non-road applications, enables the extremely compact construction of a new, innovative exhaust gas aftertreatment system as an integrated unit consisting of turbocharger and catalytic converter.
The modification of the turbocharger housing and the turbine outlet including the wastegate also enables the efficiency of the turbocharger to be increased. At high-load points, a perfect mixing of the wastegate flow with the main exhaust gas mass flow leads to a reduction in the local catalytic converter temperatures, which means that the lambda 1 map can be expanded.
The article describes the development of the ring catalyst and the integration into the turbocharger from the design phase to testing on an engine test bench. In addition to CFD simulations, measurements of efficiencies, pressure loss and flow distributions are shown. Final practical tests on the engine test bench show the potential of the close-coupled ring catalyst also in combination with a HC-Adsorber system.
The ring catalyst – an innovative, ultracompact solution for EU7
Proceedings
2020-08-29
16 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Deutsch
The ring catalyst : an innovative ultracompact solution for EU7
TIBKAT | 2020
|Ultracompact Multimode Interference Waveguide Devices
British Library Conference Proceedings | 1993
|Simulation of Ultracompact Multimode Interference Devices
British Library Conference Proceedings | 2003
|Ultracompact electric vehicle for the aged
Tema Archiv | 1998