Exhaust control device for vehicle engine

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

Patent

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Details

F02D 9/04 (2006.01) F02B 27/04 (2006.01)

Patent

CA 2639630

In an exhaust control device for a vehicle engine in which an exhaust pipe forming an exhaust passage along with an exhaust port is connected to a cylinder head via the exhaust port and a rotary valve capable of changing the opening area of the exhaust passage is disposed in the middle of the exhaust passage, the opening area of the exhaust passage is made controllable by the rotary valve while avoiding the increase in the number of component parts. A rotary valve having a turning axis CR located at a position offset from the center CL of the exhaust port is housed in a valve housing provided integrally with a cylinder head.

Dispositif anti-pollution pour moteur de véhicule dans lequel un tuyau d'échappement formant un passage pour l'échappement ainsi qu'un orifice d'échappement est connecté à une culasse par l'intermédiaire de l'orifice d'échappement et une soupape rotative capable de modifier la surface d'ouverture du passage pour l'échappement est placée au milieu du passage pour l'échappement, la surface d'ouverture du passage pour l'échappement est contrôlée par la soupape rotative tout en évitant l'augmentation du nombre de pièces composantes. La soupape rotative possède un axe de rotation CR, est située à une position décalée par rapport au centre CL de l'orifice d'échappement dans un logement de soupape intégré à la culasse.

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