Abstract: Disclosed is an ammonia-hydrogen blended fuel control system based on reactivity regulation. The control system comprises a vehicle-mounted ammonia-hydrogen fuel supply system, an ammonia-hydrogen blended fuel premixed combustion engine and an ECU (Electronic Control Unit). The ECU is used for regulating the air injection amount and pressure value of ammonia fuel and hydrogen waiting to enter the ammonia-hydrogen blended fuel premixed combustion engine. The vehicle-mounted ammonia-hydrogen fuel supply system comprises a low-pressure liquid ammonia supply unit and a vehicle-mounted hydrogen production unit, and is used for providing the prepared low-pressure ammonia fuel and hydrogen for the ammonia-hydrogen blended fuel premixed combustion engine. The ammonia-hydrogen blended fuel premixed combustion engine comprises a turbulent jet ignition device provided with a pre-chamber. An ammonia injector and a first hydrogen injector which face the cylinder head are respectively arranged on the air inlet pipe.

Abstract: Disclosed is an ammonia-hydrogen blended fuel control system based on reactivity regulation. The control system comprises a vehicle-mounted ammonia-hydrogen fuel supply system, an ammonia-hydrogen blended fuel premixed combustion engine and an ECU (Electronic Control Unit). The ECU is used for regulating the air injection amount and pressure value of ammonia fuel and hydrogen waiting to enter the ammonia-hydrogen blended fuel premixed combustion engine. The vehicle-mounted ammonia-hydrogen fuel supply system comprises a low-pressure liquid ammonia supply unit and a vehicle-mounted hydrogen production unit, and is used for providing the prepared low-pressure ammonia fuel and hydrogen for the ammonia-hydrogen blended fuel premixed combustion engine. The ammonia-hydrogen blended fuel premixed combustion engine comprises a turbulent jet ignition device provided with a pre-chamber. An ammonia injector and a first hydrogen injector which face the cylinder head are respectively arranged on the air inlet pipe.

Abstract: The present invention discloses an ammonia-hydrogen fusion fuel diffusion combustion control system based on reactivity regulation, comprising an on-board ammonia-hydrogen fuel supply system, an ammonia-hydrogen fusion fuel diffusion combustion engine and an ECU; the ECU is used to control the intensity of a precombustion chamber jet flame, control the reactivity of a hydrogen-air mixture in a main combustion chamber and control the injection time of an ammonia ejector, thus to form diffusion combustion in the main combustion chamber; the on-board ammonia-hydrogen fuel supply system comprises a low-pressure ammonia fuel supply unit and an on-board hydrogen production unit, and is used to provide prepared low-pressure ammonia fuel and hydrogen for the ammonia-hydrogen fusion fuel diffusion combustion engine; before the formation of the precombustion chamber jet flame, hydrogen regulated by the ECU is firstly injected into the main combustion chamber by a first hydrogen ejector, and then the injection time of t

Abstract: Disclosed is a multiple combustion mode engine with ammonia fuel including an cylinder head, a cylinder sleeve, a piston, a main combustion chamber, an inlet valve and an exhaust valve, and further including a jet ignition device arranged on the cylinder head and used for providing an ignition source for the main combustion chamber, and an ammonia injector used for providing ammonia/air mixture gas for the main combustion chamber. Also disclosed is a control method of the multiple combustion mode engine with ammonia fuel. The time sequence of ammonia injection of the main combustion chamber and jet flame generation of the pre-chamber is controlled, the mixed state of the fuel/air in the main combustion chamber before ignition can be controlled, and finally different combustion modes, i.e. a premixed combustion mode and a diffusion combustion mode, are formed in the main combustion chamber.

Abstract: Disclosed is a multiple combustion mode engine with ammonia fuel including an cylinder head, a cylinder sleeve, a piston, a main combustion chamber, an inlet valve and an exhaust valve, and further including a jet ignition device arranged on the cylinder head and used for providing an ignition source for the main combustion chamber, and an ammonia injector used for providing ammonia/air mixture gas for the main combustion chamber. Also disclosed is a control method of the multiple combustion mode engine with ammonia fuel. The time sequence of ammonia injection of the main combustion chamber and jet flame generation of the pre-chamber is controlled, the mixed state of the fuel/air in the main combustion chamber before ignition can be controlled, and finally different combustion modes, i.e. a premixed combustion mode and a diffusion combustion mode, are formed in the main combustion chamber.

Abstract: An air-assisted jet flame ignition device includes a housing, a fuel-air premixing unit, and a prechamber. The fuel-air premixing unit includes a fuel injector, an air injection valve, a premixing sleeve, a premixing sleeve inner core placed in the premixing sleeve, and a fuel injector fastening bolt. An inner wall surface of the premixing sleeve and an outer wall surface of the premixing sleeve inner core form a premixing sleeve inner cavity. An inner wall surface of the premixing sleeve inner core, a lower end surface of a nozzle of the fuel injector, and an upper end surface of an air inlet of the air injection valve form a premixing cavity. The premixing cavity coupled to the premixing sleeve inner cavity via a through hole on the sidewall of the premixing sleeve inner core. A prechamber nozzle is fixedly coupled to the lower part of the housing.

Abstract: An air-assisted jet flame ignition device includes a housing, a fuel-air premixing unit, and a prechamber. The fuel-air premixing unit includes a fuel injector, an air injection valve, a premixing sleeve, a premixing sleeve inner core placed in the premixing sleeve, and a fuel injector fastening bolt. An inner wall surface of the premixing sleeve and an outer wall surface of the premixing sleeve inner core form a premixing sleeve inner cavity. An inner wall surface of the premixing sleeve inner core, a lower end surface of a nozzle of the fuel injector, and an upper end surface of an air inlet of the air injection valve form a premixing cavity. The premixing cavity coupled to the premixing sleeve inner cavity via a through hole on the sidewall of the premixing sleeve inner core. A prechamber nozzle is fixedly coupled to the lower part of the housing.

Abstract: A multi-stage flame acceleration device and method for a gas-fuel engine are provided. The device includes a pressing piece, an upper chamber, a spark plug, a fuel ejector, a cooling device, and a flame acceleration nozzle. The spark plug and the fuel ejector are mounted in the upper chamber. The pressing piece is sleeved on an upper part of the upper chamber, and the device is wholly and fixedly connected to a cylinder head through a step groove of the upper chamber. A nozzle sealing ring, the flame acceleration nozzle, and a cylinder head sealing ring are mounted at a bottom of the upper chamber from top to bottom in sequence. Annular obstacles formed by annular plates are arranged in a chamber of the flame acceleration nozzle. In the method, a fuel is ejected in the chamber of the flame acceleration nozzle to obtain a homogeneous gas mixture.