Fuel nozzle belongs to the technical field of the engine, including a cavity, the cap and the nozzle valve, the oil chamber when the fuel pressure is higher than the predetermined value, the valve opens, the fuel is ejected through the nozzle cap, the valve body, the valve seat, and springs, the rear end of the cavity to form an oil chamber connected to the valve seat, the cavity has an inlet passage into the oil chamber, a spring located in the oil chamber, and acts between the valve body and the valve seat to close the oil valve seat connected to the distal end of the nozzle cap forms a residual volume of the nozzle cap is provided with a spray orifice connected to the residual volume. Nozzle is widely used in electronic fuel injection system pulse fuel pump new structure of fuel nozzles. Its small size, simple structure, low cost, easy to set the direction of the beneficial effects of the injection and progress.
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