Patent ID: 6286480
Filing Date: 2001-09-11
Classification: F02D,Y02T

Abstract:
A fuel injection control system for a medium-speed compression ignition diesel engine for powering a railroad locomotive, the engine including at least one power cylinder, at least one fuel injection pump and at least one fuel injector connected to said fuel injection pump for injecting fuel into said at least one cylinder, said fuel injection control system comprising:an altitude timing controller connected to said fuel injection pump and fuel injector, said altitude timing controller being programmed to advance ignition timing upon an increase in altitude to increase peak firing pressure in said at least one cylinder to a pressure near the design maximum firing pressure to maintain a desired engine power output, by advancing the time at which to begin fuel injection into the cylinder; anda barometric pressure sensor coupled to said altitude timing controller, to provide a signal indicative of increased altitude to said altitude timing controller.