2 more new orbital patents:

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Bibliographic data: WO2012000029 (A1) ? 2012-01-05
METHOD OF INJECTING FUEL INTO AN ENGINE

Page bookmark WO2012000029 (A1) - METHOD OF INJECTING FUEL INTO AN ENGINE
Inventor(s): COPLIN NICHOLAS [AU]; CATHCART GEOFFREY PAUL [AU] +
Applicant(s): ORBITAL AUSTRALIA PTY LTD [AU]; COPLIN NICHOLAS [AU]; CATHCART GEOFFREY PAUL [AU] +
Classification: - international: F02M69/52
- European:

Application number: WO2011AU00798 20110630
Priority number(s): AU20100902920 20100701


Abstract of WO2012000029 (A1)
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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."



Bibliographic data: WO2012000028 (A1) ? 2012-01-05
FUEL INJECTION TIMING CONTROL

Page bookmark WO2012000028 (A1) - FUEL INJECTION TIMING CONTROL
Inventor(s): UTLEY TYRON DEAN [AU] +
Applicant(s): ORBITAL AUSTRALIA PTY LTD [AU]; UTLEY TYRON DEAN [AU] +
Classification: - international: F02D19/10; F02D41/04; F02D41/34
- European:

Application number: WO2011AU00797 20110630
Priority number(s): AU20100902887 20100630


Abstract of WO2012000028 (A1)
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A method of controlling fuel injection timing for an internal combustion engine having a multi-fuel system operable with a first fuel, at least one further fuel or a mix of these, the method including intercepting angular position timing signals before said signals are used by an electronic control unit to effect fuel injection events for the first fuel, modifying the angular position timing signals if fuel supplied to the engine includes an amount of said further fuel, and utilising said modified angular position timing signals to determine revised injection timings for the fuel supplied to the engine, for example as a blend or mix."