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1. (WO2017055299) EXHAUST GAS AFTER TREATMENT SYSTEM FOR A DUAL-FUEL INTERNAL COMBUSTION ENGINE

Pub. No.:    WO/2017/055299    International Application No.:    PCT/EP2016/073016
Publication Date: Fri Apr 07 01:59:59 CEST 2017 International Filing Date: Wed Sep 28 01:59:59 CEST 2016
IPC: F02D 41/00
F02D 19/02
F02D 19/06
Applicants: GE JENBACHER GMBH & CO OG
Inventors: IMHOF, Dino
LAIMINGER, Stephan
URL, Michael
VINING, William Collins
Title: EXHAUST GAS AFTER TREATMENT SYSTEM FOR A DUAL-FUEL INTERNAL COMBUSTION ENGINE
Abstract:
Exhaust after-treatment system (1) for a dual- fuel internal combustion engine (2) having at least one exhaust after-treatment device (3) for post-treatment of an exhaust gas emitted by the internal combustion engine (2), where the internal combustion engine can be operated with at least two different fuels (D, G), a processing unit (4) for calculating the quantities and costs of a fuel (D, G) that is consumed by the internal combustion engine (2) and a reductant (U) that is consumed by the exhaust after-treatment device (3), where the processing unit (4) is configured to adjust an operating point of the internal combustion engine (2) in terms of the costs of the fuel (D, G) and the reductant (U, and where the processing unit (4) is configured take a substitution rate into account when adapting the operating point of the internal combustion engine (2).