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METHOD FOR SELECTING BETWEEN TWO OPERATION MODES IN A DUAL FUEL INTERNAL COMBUSTION ENGINE OF THE DIESEL-TYPE AND A DUAL FUEL INTERNAL COMBUSTION ENGINE OF THE DIESEL-TYPE OPERABLE ACCORDING
METHOD FOR SELECTING BETWEEN TWO OPERATION MODES IN A DUAL FUEL INTERNAL COMBUSTION ENGINE OF THE DIESEL-TYPE AND A DUAL FUEL INTERNAL COMBUSTION ENGINE OF THE DIESEL-TYPE OPERABLE ACCORDING
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机译:柴油型双燃料内燃发动机和柴油型可操作双燃料内燃发动机的两种运行方式选择方法
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摘要
A method of selecting between two operation modes in a dual fuel internal combustion engine of the diesel-type is provided. The engine includes a combustion chamber at least partly delimited by a piston, a first fuel supply for a first fuel, the first fuel supply being located in or at the combustion chamber and/or in or at an inlet port thereof, and a second fuel supply for a second fuel. The engine has two different operation modes, both operation modes including the steps of pre-mixing the first fuel in the combustion chamber and/or in the inlet port, compressing the charge containing the first fuel to conditions that allow auto-ignition of the second fuel, performing a first injection of the second fuel into the combustion chamber to initiate auto-ignition of the second fuel, thereby initiating conditions for combustion of the fuel remaining in the combustion chamber after auto-ignition of the second fuel. The first operation mode is distinguished by homogeneous ignition and combustion of the remaining fuel. The second operation mode is distinguished by pre-mixed flame propagation combustion of the remaining fuel. The method includes adjusting the amount of the second fuel injected in the first injection of the second fuel, and/or the timing of the first injection of the second fuel, so as to control the combustion chamber temperature and pressure after auto-ignition of the second fuel such that selection between the first and second operation modes is achieved. A dual fuel internal combustion engine of the diesel-type is also provided.
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