Single-orifice injection-type injector nozzle matching part

The utility model provides a single-orifice injection-type injector nozzle matching part and relates to the field of a diesel oil injection system. A single oil injection hole (6) is arranged at the oil injection end of a valve body (3) of the orifice-type injector nozzle matching part; a fuel oil collision target piece (1) is arranged at the oil injection hole (6); and a gap adjustment gasket (2) is arranged at the combination position of the fuel oil collision target piece (1) and the injector nozzle matching part. With the application of the structure, the twice injecting atomization of fuel oil can be realized, so that the contact area of the fuel and the air can be enlarged, the atomization effect can be more ideal, and the combustion can be fuller, so as to provide the condition for solving the emission problem; in addition, the injector nozzle matching part has simple and reasonable design and convenient implementation and is suitable for being popularized.