| 摘要 |
PURPOSE:To supply uniform air-fuel mixture to the combustion chambers of an engine, by mixing fuel and air sufficiently by forming a fuel pipe at the portion located between two oscillators, and forming a valve with slits at the other end portion. CONSTITUTION:A fuel pipe 14 is formed between an inner piezo-electric ceramic oscillator 12 and an outer piezoelectric oscillator 13 which are both shaped in a cylindrical form and disposed concentrically in a carburetor case 11 serving as a member for supporting the oscillators 12, 13. Further, an air pipe 15 for introducing air is formed on the inside of the inner piezoelectric oscillator 12. In the state that no input is applied to the outer oscillator 13, fuel ejection slits 17 are closed. However, when direct current or rectangular pulses are applied to the outer oscillator 13, it is expanded by the lateral effect, so that the slits 17 are opened. |
