Ultrasonic wave fuel injection and supply device

An ultrasonic wave fuel injection and supply device comprising:

• an intake passage, for supplying an air-fuel mixture therethrough, one end of which is communicated with an air cleaner and the other end of which is communicated with a combustion chamber in an internal combustion engine;
• fuel injection means having an ultrasonic wave generating means and a fuel injection nozzle means;
• said ultrasonic wave generating means comprising an ultrasonic transforming means, for transforming electrical oscillations into mechanical vibrations, connected to an ultrasonic oscillator, a mechanical vibration amplifying means, for amplifying the amplitude of said mechanical vibrations, secured at one end thereof to said ultrasonic transforming means, and a vibratory member, having a hollow, cylindrically shaped body, a peripheral wall of which is secured to the other end of said mechanical vibration amplifying means, the axis of said vibratory member being positioned substantially perpendicular to the longitudinal axis of said mechanical vibration amplifying means, and said vibratory member being positioned in said intake passage and having open opposite ends so as not to hinder the flow of fluid through said intake passage;
• said fuel injection nozzle means having a nozzle opening which opens toward said peripheral wall of said vibratory member for injecting liquid fuel under pressure onto said peripheral wall;
• fuel supply means for introducing liquid fuel from a fuel reservoir and for supplying the same to said injection nozzle means;
• and
• control means for controlling the amount of fuel being injected through said injection nozzle means in accordance with the running conditions of said internal combustion engine,
• whereby liquid fuel injected onto said peripheral wall of said vibratory member undergoing ultrasonic vibration may be atomized and scattered due to the ultrasonic vibration thereof, the liquid fuel thus being atomized and scattered being supplied to a combustion chamber of said engine, together with air from said air cleaner.