Method of injecting fuel into an engine
AssigneeOrbital Australia Pty Ltd
InventorsNicholas Coplin, Geoffrey Paul Cathcart
Life of this patent
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Abstract
A method of operation of a dual fluid fuel injection system arranged to supply fuel to a cylinder of an internal combustion engine, the dual fluid fuel injection system being controllable to effect fuel metering events and fuel delivery events. The method comprises operating the dual fluid fuel injection system so as to have at least one fuel delivery event during each engine cycle and to have fewer than one fuel metering event, on average, per engine cycle. An electronic control unit for implementing the method is also described. The method and control unit allow dynamic range of a fuel metering injector, where included within the dual fluid fuel injection system, to be extended.
Claims14
A method of operation of a dual fluid fuel injection system arranged to supply fuel to a cylinder of an internal combustion engine, the dual fluid fuel injection system being controllable to effect fuel metering events and fuel delivery events, the method comprising operating the dual fluid fuel injection system so as to have at least one fuel delivery event during each engine cycle and to have fewer than one fuel metering event, on average, per engine cycle.
An electronic control unit (ECU) for controlling a dual fluid fuel injection system to effect fuel metering events and fuel delivery events, the control unit being configured with maps for controlling operation of the dual fluid fuel injection system so as to have at least one fuel delivery event during each engine cycle and to have fewer than one fuel metering event, on average, per engine cycle.
Dependencies are inferred from the claim text.