Low emission cylander cut-out idle sytedm

Details Low emission cylander cut-out idle sytedm Low emission cylander cut-out idle sytedm

F - Mech Eng,Light,Heat,Weapons

02

D

F02D 13/06 (2006.01) F02D 17/02 (2006.01)

Patent

CA 2084748

The invention is directed to reducing unburned hydrocarbons during engine idling. During idling, one cylinder bank of an engine is alternately deactivated by fuel cut-off structure with another cylinder bank. Therefore, one bank works twice as hard and consequently produces much lower emissions. A timer alternates between the cylinder banks anywhere from fifteen seconds to four minutes.

La présente invention vise la réduction des émissions d'hydrocarbures non brûlés par les moteurs tournant au ralenti. bas régime, deux rangées de cylindres sont alternativement désactivées par une structure de coupure de l'alimentation carburant. Les émissions sont réduites du fait que chaque rangée de cylindres doit fournir deux fois plus de travail à bas régime. Une minuterie commande le fonctionnement alterné de l'une et l'autre rangées de cylindres pour des durées pouvant varier de quinze secondes à quatre minutes.

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