Engine control system for reduced exhaust emissions

Details Engine control system for reduced exhaust emissions Engine control system for reduced exhaust emissions

F - Mech Eng,Light,Heat,Weapons

01

N

F01N 3/00 (2006.01)

Patent

CA 2543780

A method of controlling emissions from an internal combustion engine (12) including governing engine speed with respect to a constant speed, maintaining an air/fuel ratio of the engine, flowing exhaust from the engine through an exhaust system (16, 18, 40, 65, 80) containing a catalyst (32), monitoring a first variable with a first sensor (19) located upstream of the catalyst (32), and controlling the air/fuel ratio of the engine (12) as a function of the first variable. In one application, the engine (12) is configured for marine applications, including electric power generation and propulsion.

La présente invention concerne un procédé de régulation des émissions provenant d'un moteur à combustion interne (12), qui consiste à régler la vitesse du moteur par rapport à une vitesse constante, à maintenir un rapport air/carburant du moteur, à faire passer les gaz d'échappement provenant du moteur à travers un système d'échappement (16, 18, 40, 65, 80) contenant un catalyseur (32), à contrôler une première variable au moyen d'un premier capteur (19) disposé en amont du catalyseur (32), et à réguler le rapport air/carburant du moteur (12) en fonction de cette première variable. Dans une application de l'invention, le moteur (12) est conçu pour des applications marines, du type génération de puissance électrique et propulsion.

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