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US 9,217,347 B2Granted
Method and device for treating exhaust gas condensates of an internal combustion engine
AssigneeMahle International GmbH
InventorsPeter Englert, Roger Gorges
Life of this patent
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Abstract
A method for treating exhaust gas condensates of an internal combustion engine, in which the exhaust gas condensates containing nitrogen oxides are delivered to an exhaust gas recirculation system and are cooled therein. The nitrogen oxides of the cooled exhaust gas condensates are converted to ammonia through electrolysis.
Claims10
A method for treating exhaust gas condensates of an internal combustion engine, the method comprising:
- delivering the exhaust gas condensates containing nitrogen oxides to an exhaust gas recirculation system;
- cooling the exhaust gas condensates in the exhaust gas recirculation system;
- converting the nitrogen oxides of the cooled exhaust gas condensates to ammonia through electrolysis via an electrolysis unit, and
- mixing the ammonia with fresh air provided from an outlet of an intercooler connected to an outlet of the electrolysis unit at a position upstream of an intake of the internal combustion engine.
1 more element
A device for treating exhaust gas condensates of an internal combustion engine, the device comprising:
- at least one exhaust gas cooler connected to the internal combustion engine, wherein an exhaust gas containing exhaust gas condensates and emerging from the internal combustion engine is delivered either directly or through a turbocharger to the at least one exhaust gas cooler for recirculation of the exhaust gas;
- and
- an electrolysis unit that converts, via electrolysis, nitrogen oxides into ammonia, the electrolysis unit being arranged between the exhaust gas cooler and the internal combustion engine,
- wherein an outlet of an intercooler providing fresh air is connected to an outlet of the electrolysis unit upstream of an intake of the internal combustion engine.
1 more element
Dependencies are inferred from the claim text.