Patent ID: 11885259
Assignee: TIANJIN UNIVERSITY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 3:
4. The ammonia-hydrogen blended fuel control system based on reactivity regulation according to claim 1, wherein the turbulent jet ignition device further comprises a second hydrogen injector; the second hydrogen injector is provided with a high-pressure premixing cavity and an electromagnetic valve in sequence downward, and a nozzle at a bottom of the electromagnetic valve extends into the pre-chamber cavity for injecting hydrogen into the pre-chamber cavity; a side wall of the high-pressure premixing cavity communicates with an air inlet for premixing high-pressure air with hydrogen from the second hydrogen injector; a nozzle of the spark plug extends into the pre-chamber cavity; jet holes are positioned in a bottom of the turbulent jet ignition device, and the pre-chamber cavity communicates with the main combustion chamber through the jet holes; the turbulent jet ignition device has two working modes, namely, the air entrainment injection mode and the scavenging mode of hydrogen-air mixture injection;
when the ECU controls the turbulent jet ignition device to be in the air entrainment injection mode, hydrogen from the second hydrogen injector and high-pressure air are mixed in the high-pressure premixing cavity, and then gas mixture of air and hydrogen is injected by the electromagnetic valve to form equivalent gas mixture in the pre-chamber;
when the ECU controls the turbulent jet ignition device to be in the scavenging mode of hydrogen-air mixture injection, the electromagnetic valve injects twice, and fresh air is injected into the pre-chamber cavity for the first time to scavenge the pre-chamber; and then, hydrogen from the second hydrogen injector and high-pressure air are mixed in the high-pressure premixing cavity to form gas mixture, and the gas mixture is injected into the pre-chamber by the electromagnetic valve for the second time.