Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F02Combustion engines F02DCONTROLLING COMBUSTION ENGINES

F02D19/00Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures

F02D19/02peculiar to engines working with gaseous fuels F02D19/021Control of components of the fuel supply system F02D19/022to adjust the fuel pressure, temperature or composition F02D19/023to adjust the fuel mass or volume flow F02D19/024by controlling fuel injectors F02D19/025Failure diagnosis or prevention; Safety measures; Testing F02D19/026Measuring or estimating parameters related to the fuel supply system F02D19/027Determining the fuel pressure, temperature or volume flow, the fuel tank fill level or a valve position F02D19/028by estimation F02D19/029Determining density, viscosity, concentration or composition F02D19/04peculiar to engines working with solid fuels F02D19/06peculiar to engines working with pluralities of fuels F02D19/0602Control of components of the fuel supply system F02D19/0605to adjust the fuel pressure or temperature F02D19/0607to adjust the fuel mass or volume flow F02D19/061by controlling fuel injectors F02D19/0613Switch-over from one fuel to another F02D19/0615being initiated by automatic means F02D19/0618depending on the engine's or vehicle's position F02D19/0621Purging of the fuel system F02D19/0623Failure diagnosis or prevention; Safety measures; Testing F02D19/0626Measuring or estimating parameters related to the fuel supply system F02D19/0628Determining the fuel pressure, temperature or flow, the fuel tank fill level or a valve position F02D19/0631by estimation F02D19/0634Determining a density, viscosity, composition or concentration F02D19/0636by estimation F02D19/0639characterised by the type of fuels F02D19/0642at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions F02D19/0644the gaseous fuel being hydrogen, ammonia or carbon monoxide F02D19/0647the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME] F02D19/0649Liquid fuels having different boiling temperatures, volatilities, densities, viscosities, cetane or octane numbers F02D19/0652Biofuels F02D19/0655at least one fuel being an alcohol F02D19/0657Heavy or light fuel oils; Fuels characterised by their impurities such as sulfur content or differences in grade F02D19/066Retrofit of secondary fuel supply systems; Conversion of engines to operate on multiple fuels F02D19/0663Details on the fuel supply system F02D19/0665Tanks F02D19/0668Treating or cleaning means; Fuel filters F02D19/0671Means to generate or modify a fuel F02D19/0673Valves; Pressure or flow regulators; Mixers F02D19/0676Multi-way valves; Switch-over valves F02D19/0678Pressure or flow regulators therefor; Fuel metering valves therefor F02D19/0681Shut-off valves; Check valves; Safety valves; Pressure relief valves F02D19/0684High pressure fuel injection systems; Details on pumps, rails or the arrangement of valves in the fuel supply and return systems F02D19/0686Injectors F02D19/0689for in-cylinder direct injection F02D19/0692Arrangement of multiple injectors per combustion chamber F02D19/0694operating with a plurality of fuels F02D19/0697Arrangement of fuel supply systems on engines or vehicle bodies; Components of the fuel supply system being combined with another device F02D19/08simultaneously using pluralities of fuels F02D19/081Adjusting the fuel composition or mixing ratio; Transitioning from one fuel to the other F02D19/082Premixed fuels F02D19/084Blends of gasoline and alcohols F02D19/085Control based on the fuel type or composition F02D19/087with determination of densities, viscosities, composition, concentration or mixture ratios of fuels F02D19/088by estimation F02D19/10peculiar to compression-ignition engines in which the main fuel is gaseous F02D19/105operating in a special mode F02D19/12peculiar to engines working with non-fuel substances or with anti-knock agents