Thermal management system for catalytic converters
December 10, 2017. 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 References 3744248 Crossfire calibrated exhaust system Low thermal capacitance exhaust system for an internal combustion engine Baffled catalytic converter Exhaust gas recirculation system for an engine Catalyst warming up device of an internal combustion engine Exhaust emission control system in engine Apparatus and method for internal combustion engine control Patent #: 5657625 InventorsApplicationNo. 988463 filed on 12/10/1997US Classes:60/284, Automatic or timed reactor purge or heat-up in engine starting operation60/288, Exhaust gas diverted from reactor or treating agent mixer60/300, Having a means for heating the catalyst60/323Common receiver having inlets from plural cylinder (i.e., exhaust manifold)ExaminersPrimary: Denion, ThomasAttorney, Agent or FirmInternational ClassF01N 003/00AbstractA thermal management system for catalytic converters of an automotive internal combustion engine includes exhaust pipes from one bank of cylinders crossing over to a second side of the engine to a catalytic converter, while the exhaust pipe from the other bank of cylinders crosses over to the first side of the engine to connect to a corresponding catalytic converter, thereby resulting in a crosswise pattern of exhaust flow. Bypass pipes connect between the exhaust pipes of one bank of cylinders directly to the catalytic converter located on the same side of the engine to provide a short exhaust path to rapidly heat the converter. | |
