| 摘要 |
PURPOSE:To suppress the reduction of the fuel flow and maintain a stable characteristic by arranging a fuel pressure correcting means made of a dummy member generating the pressure equivalent to the negative pressure in a mixing passage on an assist air type fuel injection valve mixing the fuel and air in the mixing passage and atomizing the fuel. CONSTITUTION:An assist air type fuel injection valve has a mixing passage of the fuel and air downstream a moving valve intermittently measuring the fuel and atomizes the fuel. It is arranged with a fuel pressure correcting means made of a dummy member generating the pressure equivalent to the negative pressure in a mixing passage. The negative pressure of a collector 1 is mixed with the assist air by a dummy atomizer 2 into the same pressure as the pressure near a fuel nozzle section, for example, then it is guided into a pressure regulator. The same function is secured as the function that the fuel pressure is adjusted by the pressure near the fuel nozzle section, and a proper injection quantity of fuel can be attained. |
