Method/apparatus for controlling engine exhaust gas...

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

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F02D 21/08 (2006.01) F02D 23/00 (2006.01) F02M 25/07 (2006.01) F02B 37/24 (2006.01)

Patent

CA 2428085

The present invention provides a method and apparatus for controlling an internal combustion engine. The engine includes a variable flow exhaust gas recirculation (EGR) system. The method includes providing a variable geometry turbocharger (VGT) in communication with the EGR system for controlling exhaust gas recirculation. The geometry of the VGT is varied by adjustably controlling a rotary electric actuator (REA) operatively connected to the position-adjustable proportional flow valve.

L'invention concerne un procédé et un appareil permettant de réguler un moteur à combustion interne. Ledit moteur comporte notamment un système de recirculation des gaz d'échappement (EGR) à débit variable. Le procédé consiste à fournir un turbocompresseur à géométrie variable (VGT) en communication avec le système EGR pour réguler la recirculation des gaz d'échappement. On fait varier la géométrie du VGT en régulant de manière réglable un actionneur électrique rotatif (REA) fonctionnellement relié au VGT. On règle une soupape EGR à débit proportionnel à position réglable en régulant de manière réglable un second actionneur électrique rotatif (REA) fonctionnellement relié à ladite soupape.

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