Fuel system for an internal combustion engine and method for...

F - Mech Eng,Light,Heat,Weapons – 02 – D

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Details

F02D 41/06 (2006.01) F02N 19/04 (2010.01) F02D 41/00 (2006.01) F02D 41/20 (2006.01) F02D 41/22 (2006.01) F02D 41/30 (2006.01) F02M 51/06 (2006.01) F02M 53/06 (2006.01) F02D 41/18 (2006.01) F02M 69/04 (2006.01) F02M 69/30 (2006.01)

Patent

CA 2504425

A fuel system for use in an internal combustion engine includes a plurality of fuel injectors, each injector including at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat a liquid fuel in the at least one capillary flow passage to a level sufficient to convert at least a portion thereof from the liquid state to a vapor state, and a valve for metering fuel to the internal combustion engine, a controller to control the power supplied to the heat source of each of the plurality of fuel injectors to achieve a predetermined target temperature, a sensor for use in determining engine air flow and a sensor for measuring a value indicative of degree of engine warm-up of the internal combustion engine.

L'invention concerne un système d'alimentation de carburant destiné à un moteur à combustion interne, comportant une pluralité d'injecteurs de carburant pourvus d'au moins un passage de flux capillaire présentant une extrémité d'entrée et une extrémité de sortie ; une source de chaleur disposée le long du ou des passages de flux capillaires, capable de chauffer un carburant liquide dans le ou les passages de flux capillaires à un niveau suffisant pour transformer au moins une partie du liquide en vapeur ; une soupape destinée à doser le carburant dans le moteur à combustion interne ; une commande destinée à commander l'énergie fournie à la source de chaleur de chaque injecteur de carburant afin d'obtenir une température cible prédéterminée ; un capteur destiné à déterminer le flux d'air dans le moteur ; et, un capteur destiné à mesurer une valeur caractéristique du degré de mise en température du moteur à combustion interne.

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