Port system, especially an induction manifold for an...

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

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F02B 31/08 (2006.01)

Patent

CA 2339232

Disclosed is a port system, especially an induction manifold, for an internal combustion engine, comprising opening and closing valves (13) for selective opening and closing thereof. The valves should be progressively adjustable in order to produce a swirl in the combustion airflow. To achieve this, a high degree of angular precision is required in the positioning of the valves. Induction manifold process tolerances need to be compensated during the assembly process of said valves. Means of adjusting said valves are provided in the axes thereof (13) or in the mechanical connections of the valve gear pertaining to the valve drive mechanism.

Système de canaux, en particulier collecteur d'admission pour un moteur à combustion interne, qui possède des clapets d'ouverture et de fermeture (13) pour l'ouverture et la fermeture sélective des canaux. Lesdits clapets doivent être à réglage continu pour produire en particulier un moment cinétique dans l'air de combustion entrant. A cet effet, une haute précision angulaire de la position des clapets est nécessaire. Les tolérances de fabrication du collecteur d'admission lors du processus de montage des clapets doivent donc pouvoir être équilibrées. Selon la présente invention, lesdits clapets présentent des moyens de réglage qui sont placés soit dans les axes des clapets (13), soit dans les liaisons mécaniques de la tringlerie d'entraînement de la commande de clapet.

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