This paper describes the equipment and the operation of a system used to convert an EMD diesel locomotive engine to operate using natural gas as a major energy source. The retrofit system developed uses electronic controls, sensors and actuators to monitor system variables and perform the required control functions of the dual fuel locomotive engine. Among the required controls are gas injection timing and rate, the control of the diesel pilot level, turbocharger waste gate and a device that causes the engine to operate alternately on half of its cylinders during times of low specific power output. Along with the addition of controls, changes were made to the design of the pistons, cylinder heads and engine air cooling.
A retrofit system to convert a locomotive to natural gas operation
Nachrüstsatz zur Umstellung von Dieselloks auf Erdgasbetrieb
Natural Gas and Alternative Fuels for Engines, 1994, Energy Source Technology Conference, 1994 ; 1-5
ASME/ICE ; 21
1994
5 Seiten, 3 Bilder, 4 Tabellen, 7 Quellen
Aufsatz (Konferenz)
Englisch
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