Exhaust pulse control unit

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

Patent

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Details

F02B 27/04 (2006.01) F01N 13/00 (2010.01) F01N 13/08 (2010.01)

Patent

CA 2399471

An exhaust pulse control unit (10) for increasing exhaust manifold vacuum in an engine comprises an inlet (11), an outlet (12) and an intermediate containment zone (13). An exhaust pulse capture and expansion zone (14) is located between the inlet and intermediate zone and a merging zone (17) between the intermediate zone and the outlet. The capture and expansion zone may consist of two stages with the first stage providing a relatively rapid increase in exhaust gas volume.

L'invention concerne une unité de commande (10) d'impulsions d'échappement permettant d'augmenter une dépression dans la tubulure d'échappement, qui comprend une entrée (11), une sortie (12), et une zone intermédiaire de confinement (13). Une zone (14) d'expansion et de capture d'impulsions d'échappement est située entre l'entrée et la zone intermédiaire, et une zone de convergence (17) est située entre ladite zone intermédiaire et la sortie. Ladite zone (14) d'expansion et de capture est constituée de deux étages, le premier étage provoquant une augmentation relativement rapide du volume de gaz d'échappement.

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