Exhaust gas purification system for a gasoline engine
AssigneeUmicore AG & Co. KG
InventorsJan SCHOENHABER, Joerg-Michael RICHTER, Carolin BRAUN
Life of this patent
Estimating the term…
Abstract
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 oxygen storage capacity (OSC) of the GPF is greater than the OSC of the TWC2, wherein the OSC is determined in mg/l of the volume of the device. The invention also relates to methods in which the system is used and uses of the system.
Claims20
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 oxygen storage capacity (OSC) of the GPF is greater than the OSC of the TWC2, wherein the OSC is determined in mg/l of the volume of the device.
Dependencies are inferred from the claim text.