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Bayerische Motoren Werke Aktiengesellschaft

Dr. Ing. H.c. F. Porsche Aktiengesellschaft

Audi Ag

Volkswagen Ag

Daimler Chrysler Ag

Peter Gerl

Lorenz K Salzer

Ngoc-Hoa Huynh

Alf Degen

Ulf-Peter Schmeling

A process and a system are used for controlling the mixture composition for an Otto engine with an NOstorage catalyst during a regeneration phase. The process includes controlling, to the value of one, a &#x3bb;-value (&#x3bb;) of an exhaust gas fed to the NOstorage catalyst during a regeneration phase as a function of a &#x3bb;-value (&#x3bb;) of an exhaust gas emitted by the NOstorage catalyst. The system includes a control device for controlling, to the value of one, a &#x3bb;-value (&#x3bb;) of the exhaust gas fed to the NOstorage catalyst during the regeneration phase as a function of the &#x3bb;-value (&#x3bb;) of the exhaust gas emitted by the NOstorage catalyst.

Process and system for controlling the mixture composition for a spark ignition Otto engine with an NOx storage catalyst during a regeneration phase

An arrangement for igniting a combustible gas mixture for the exhaust system of an internal-combustion engine has a frame device which is wound with a heating wire and can be installed into an exhaust gas train of the exhaust system transversely to the flow axis of the exhaust gas. A power supply device is provided for supplying the heating wire with electric current for generating a predetermined heating wire temperature. The frame device defines a flow range in which a heating wire grid is provided.

Arrangement and method for igniting a combustible gas mixture for the exhaust system of an internal-combustion engine and corresponding exhaust system

A method and an arrangement are provided for reducing warm-up emissions in the exhaust system of a direct-injection internal-combustion engine. The method includes the steps of adjusting a lean air/fuel mixture for the engine-related combustion; implementing a late injection into the exhaust gas during the exhaust cycle of the internal-combustion engine, so that the exhaust gas contains an essentially stoichiometric air/fuel mixture; and igniting the stoichiometric air/fuel mixture contained in the exhaust gas in the proximity of a catalyst device for heating up the catalyst device.

Process and apparatus for reducing warm-up emissions of a direct injection internal combustion engine

Growing community of inventors

Esslingen, Germany

Peter Gerl