| 摘要 |
[Problem] To provide a nozzle plate for a fuel injection device, the nozzle plate being configured so that: the direction of fuel injection can be easily set to a desired direction; and the nozzle plate can be manufactured at reduced cost. [Solution] A nozzle plate (7) is mounted to the fuel injection opening of a fuel injection device and injects fuel, which has been injected from the fuel injection opening, into an intake pipe from nozzle holes (12). The nozzle holes (12) are configured in such a manner that: the outlet-side openings thereof are partially closed by interference bodies, thereby determining the direction of fuel injection; and orifices (13) for throttling the flows of the fuel are formed at the outlet-side openings. The orifices (13) are formed so that the fuel is injected in different directions and so that fuel particles in spray entangle air therearound and impart momentum to the entangled air, thereby generating helical air flows. The nozzle plate (7) is formed by cooling and solidifying a molten material filled into the cavity of a metallic mold. |
