20120310509 | Dual fuel engine system - A dual fuel system employs a liquid fuel supply subsystem and a gaseous fuel supply subsystem for an engine. The liquid fuel supply subsystem supplies liquid fuel to the engine and an electronic control module is configured to control, via one or more liquid fuel control signals, the amount of liquid fuel supplied to the engine based on one or more sensor signals. A gaseous fuel supply subsystem is configured to supply gaseous fuel to the engine and an electronic controller subsystem responsive to liquid fuel control signal(s) determines, based on the liquid fuel control signals, a modified amount of liquid fuel and an amount of gaseous fuel to be supplied to the engine for dual fuel operation. | 12-06-2012 |