Method and device for decomposing nitrogen oxides in the exhaust gas of an internal combustion engine
February 23, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInternal combustion engine with afterburner, venturi cooler and exhaust turbine Removing nitrogen oxides in exhaust gases from a diesel engine Mixture-compressing internal-combustion engine with secondary-air injection and with air-mass metering in the suction pipe Device for supplying extra air in exhaust gases from a supercharged Otto engine fitted with a catalytic converter Method for treating an exhaust gas stream for the removal on NOx Method and apparatus for reducing NOx in the exhaust streams of internal combustion engines Patent #: 5813224 InventorsAssigneeApplicationNo. 028235 filed on 02/23/1998US Classes:60/274, Anti-pollution60/280, Having auxiliary device mechanically driven by exhaust gas60/286, Condition responsive control of heater, cooler, igniter, or fuel supply of reactor60/289, Air feed to reactor modulated or diverted by control60/307Pressurizing means feeds reactive air to reactorExaminersPrimary: Denion, ThomasAttorney, Agent or FirmForeign Patent References
International ClassF01N 003/00Foreign Application Priority Data1995-08-23 DEAbstractA method and a device for decomposing nitrogen oxides in an exhaust gas of an internal combustion engine, include feeding the exhaust gas and a reactant which is sprayed into the exhaust gas through the use of compressed air, to a catalytic converter. A compressor for supplying compressed air is associated with the internal combustion engine, and part of the compressed air is diverted and used as the compressed air for injecting the reactant. The sprayed reactant is fed to the catalytic converter, together with the exhaust gas to be purified, which ensures the decomposition of the nitrogen oxides, in particular according to the method of selective catalytic reaction.Other References
Field of SearchHaving auxiliary device mechanically driven by exhaust gasCondition responsive control of heater, cooler, igniter, or fuel supply of reactor Reducing type catalyst Having heater, igniter, or fuel supply for reactor Pressurizing means feeds reactive air to reactor Air feed to reactor modulated or diverted by control Anti-pollution | |
