| 摘要 |
A fuel injector (100) is shown and described. The fuel injector (100) includes an inlet (100A), outlet (100B), seat (128 or 1000), closure member (112B), and a metering orifice disc (10, 200, 300, 300', 400, 500, 600, 700, 900). The metering orifice disc (10, 200, 300, 300', 400, 500, 600, 700, 900) is disposed between the seat (128 or 1000) and the outlet (100B). The metering orifice disc (10, 200, 300, 300', 400, 500, 600, 700, 900) includes a plurality of metering orifices (12 and 13) disposed about the longitudinal axis and a flow channel (14A, 14B, 15A, 15B) to each metering orifice disc (10, 200, 300, 300', 400, 500, 600, 700, 900) so that, when the inlet (100A) of the fuel injector (100) is provided with a pressurized fluid over a range of pressure from 300 kiloPascals to 400 kiloPascals, the metering orifice disc (10, 200, 300, 300', 400, 500, 600, 700, 900) provides an atomized fluid having a Sauter-Mean-Diameter of less than 70 microns proximate the outlet (100B) of the fuel injector (100). Various fuel injectors and disc configurations are disclosed. Various methods of atomizing and spray targeting are also provided. |
