Umicore Ag & Co Kg

Carolin Braun

Jan Schoenhaber

Joerg-Michael Richter

Tim Palm

Martin Roesch

Joel Despres

Marcus Schmidt

Meike Antonia Gotthardt

Nicole Schichtel

Massimo Colombo

The invention is directed to the purification of exhaust gases of an internal combustion engine operated predominantly with a stoichiometric fuel mixture. The exhaust gas system has in particular 4 purification functions in a particular order. A three-way catalyst (TWC1) near the engine is followed by a gasoline particle filter (GPF) and another three-way catalyst (TWC2) downstream thereof. The system additionally includes a hydrocarbon storage function.

Exhaust gas purification system for purifying exhaust gases of gasoline engines

Subject of the invention is an exhaust gas purification system for a gasoline engine, comprising in consecutive order the following devices: The invention also relates to methods in which the system is used and uses of the system.

Exhaust gas purification system for a gasoline engine

The present invention relates to a catalyst comprising two layers on an inert catalyst carrier, a layer A containing at least palladium as a platinum group metal, in addition to a cerium/zirconium/lanthanum/yttrium mixed oxide, and a layer B, which is applied to layer A, containing at least rhodium as the platinum group metal, in addition to a cerium/zirconium/lanthanum/yttrium mixed oxide.

Double-layer three-way catalyst with further improved ageing stability

The present invention relates to a wall-flow filter for removing particles from the exhaust gas of an internal combustion engine, which comprises a coating F, which comprises a sintered material S, wherein material S comprises an oxide, oxide-hydroxide, carbonate, sulphate, silicate, phosphate, mixed oxide, composite oxide, molecular sieve or a mixture comprising two or more of these materials.

Filter for the aftertreatment of exhaust gases of internal combustion engines

The present invention is directed to the purification of exhaust gases of an internal combustion engine operated predominantly with a stoichiometric fuel mixture. The exhaust system has in particular 4 purification functions in a particular order. A three-way catalyst (TWC) near the engine is followed by a gasoline particle filter (GPF) and another three-way catalyst (TWC) downstream thereof. The system additionally has a nitrogen oxide storage function.

Exhaust gas purification system for purifying exhaust gases of internal combustion engines

The invention is directed to the purification of exhaust gases of an internal combustion engine operated predominantly with a stoichiometric fuel mixture. The exhaust system has in particular 4 purification functions in a particular order. A three-way catalyst (TWC1) near the engine is followed by a gasoline particle filter (GPF) and another three-way catalyst (TWC2) downstream thereof. The system additionally includes an ammonia storage function.

Exhaust gas system for purifying exhaust gases of gasoline engine

Subject of the invention is an exhaust gas purification system for a gasoline engine, comprising in consecutive order the following devices: a first three-way-catalyst (TWC1), a gasoline particulate filter (GPF) and a second three-way-catalyst (TWC2), wherein the wash coat load (WCL) of the GPF is greater than the WCL of the TWC2, wherein the WCL is determined in g/l of the volume of the device. The invention also relates to methods in which the system is used and uses of the system.

Subject of the invention is an exhaust gas purification system for a gasoline engine, comprising in consecutive order the following devices: &#x22c5; a first three-way-catalyst (TWC1), a gasoline particulate filter (GPF) and a second three-way-catalyst (TWC2), &#x22c5; wherein the platinum-group metal concentration (PGM) of the TWC2 is greater than the PGM of the GPF, wherein the PGM is determined in g/ft3 of the volume of the device. Also disclosed are methods in which the system is used and uses of the system.

An exhaust gas purification system for a gasoline engine is described the system comprising in consecutive order the following devices: &#x2022;a first three-way-catalyst (TWC1), a gasoline particulate filter (GPF) and a second three-way-catalyst (TWC2), &#x2022;wherein the oxygen storage capacity (OSC) of the GPF is greater than the OSC of the TWC1, wherein the OSC is determined in mg/l of the volume of the device.

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Langen, Germany

Carolin Braun