Mixed direct fuel injector for i.c.engines - pre-mixes fuel and air before direct injection - may be combined with spark plug

摘要

A combination Mixed Direct Injector and Spark Plug (Fig 6), comprising a fitting, 1, embodying a communal mixing passage, 2, having a stationary mixing helix, 5, and discharge nozzle outlet aperture, 7, fed by two electronically controlled solenoid operated injectors, 3 and 4, supplied by pressurised fuel, 3p, and pressurised air, 4p, respectively, the fitting, 1, having spark plug components - high tension insulator, 27, high tension terminal, 28n, terminal stud, 28s, spark electrode tip, 28, earth electrode, 26, hexagon nut facets, 29, sealing washer, 30, and mating spark plug screw threads, 8, for direct connection into spark plug holes, 9, of combustion chambers, 10, of an internal combustion engine.