| 摘要 |
The invention relates to an injector for diesel engines with precombustion chambers, particularly of the low turbulence type, including an atomizer nozzle in which a needle slides to act as a shutter member for controlling the fuel flow towards an outlet hole in dependence upon the rate of flow of the fuel fed to the atomizer nozzle, and has a terminal portion which includes a cylindrical part, a tapering frusto-conical part and a shaped end part. In order to prevent the formation of carbonaceous deposits on the terminal portion of the needle, the latter has at least one flat face lying in a plane tangential to the periphery of the smaller end of the frusto-conical part.
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