Device for introducing alcohol into gasoline engine as supplemental fuel

A device for introducing alcohol vapors together with gasolene vapors into the combustion chamber of an engine comprising:

• a vapor control valve wherein the control element is connected to the intake manifold of the internal combustion engine having an air intake opening and an air output opening;
• an air tight tank adapted to hold a volatile liquid such as alcohol and the like having a liquid inlet and a liquid outlet port and having an air inlet pipe connected to the air output opening of the vapor control valve, where the air inlet pipe has an opened end that allows the bubbling of air through the liquid alcohol and a by-pass opening that facilitates the flow of air on top of the volatile liquid and having an air outlet pipe whose inlet end is terminated by a cylindrical container with multiple holes and inter-layered inside with a plurality of baffle plates;
• and
• a deceleration air feed valve having its input connected to the air outlet pipe of the air tight tank and having an air inlet port and providing a check valve for supplying air to the engine upon reaching of a predetermined suction pressure from the engine's manifold in order to avoid generation of a vacuum inside the alcohol containing air tight tank.