Railway locomotive diesel engine speed/load control during...

Details Railway locomotive diesel engine speed/load control during... Railway locomotive diesel engine speed/load control during...

F - Mech Eng,Light,Heat,Weapons

02

D

F02D 41/00 (2006.01) F02D 1/00 (2006.01) F02D 23/00 (2006.01) F02D 29/06 (2006.01) F02B 3/06 (2006.01) F02B 75/02 (2006.01)

Patent

CA 2142078

Methods of operating a locomotive engine to maintain power and speed under conditions of air starvation, as in high temperature tunnel operation, include varying engine load instead of fuel rate to maintain set engine speed when operating at (1) excessive engine exhaust smoke levels or (2) under conditions where increasing fuel rate fails to increase engine power. Normal speed control by varying fuel rate is maintained under other operating conditions. Application to turbocharged two cycle diesel engines is particularly indicated.

Méthodes d'utilisation d'un moteur de locomotive pour conserver puissance et vitesse dans des situations où il y a insuffisance d'air, comme c'est le cas dans les tunnels. Ces méthodes consistent à modifier la charge du moteur au lieu du débit de carburant pour conserver la vitesse choisie du moteur lorsque ce dernier est utilisé dans (1) des niveaux excessifs de fumées d'échappement du moteur ou (2) dans des conditions où l'augmentation du débit de carburant ne parvient pas à accroître la puissance du moteur. La commande normale de la vitesse grâce à la modification du débit de carburant est conservée dans d'autres conditions d'utilisation. L'application de ces méthodes aux turbo Diesel deux temps est particulièrement indiquée.

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