| 摘要 |
PURPOSE:To make it possible to make the inner diameter of a fuel jet orifice fine without lowering the Reynolds number and to enable stable injection, by forming the fuel jet orifice by securing a fine pipe to a fuel nozzle. CONSTITUTION:A fuel nozzle 4 is provided in a hollow nozzle chip 1 having a jet orifice 2 at the leading end thereof an the fluid flowing through the gap between the fuel nozzle and the nozzle chip and the fuel flowing the passage 5 in the fuel nozzle 4 are mixed to be injected from the jet orifice 2. In this nozzle apparatus, a fine pipe 7 communicated with the fuel passage 5 is secured to the leading end part of the nozzle 4 while the leading end part of the fine pipe 7 is inserted into the almost central part of the jet orifice 2. By this method, the inner diameter of the fuel jet orifice can be made fine without lowering the Reynolds number to enable stable injection.
|
