초록 ▼

A fuel vaporizer manifold to be mechanically interconnected between the carburetor and intake manifold of an internal combustion engine of a motor vehicle. The vaporizer manifold comprises a plurality of parallel aligned and longitudinally extending heating tubes and a plurality of parallel aligned

A fuel vaporizer manifold to be mechanically interconnected between the carburetor and intake manifold of an internal combustion engine of a motor vehicle. The vaporizer manifold comprises a plurality of parallel aligned and longitudinally extending heating tubes and a plurality of parallel aligned and laterally extending heat conducting fins that are arranged in thermal contact with said tubes. A portion the hot exhaust gases being emitted from the engine is recycled from the exhaust manifold to the carburetor by way of the heating tubes of the vaporizer manifold to thereby heat the tubes and the fins in contact therewith. Liquid fuel (e.g. gasoline), which is mixed with air and supplied to the vaporizer manifold from the carburetor, flows over the heat conducting fins, whereby said liquid fuel is vaporized. The vaporized fuel is supplied from the vaporizer manifold to the intake manifold to be efficiently combusted within the cylinders of the engine. Accordingly, the exhaust emitted into the atmosphere by the engine will be characterized by a relatively low temperature and less potentially harmful pollutants.

대표청구항 ▼

For an internal combustion engine including a carburetor and intake and exhaust manifolds, a vaporizer manifold and gas conveying system for receiving liquid fuel from the carburetor and converting the liquid fuel to a vapor for powering the engine, said vaporizer manifold and gas conveying system c

For an internal combustion engine including a carburetor and intake and exhaust manifolds, a vaporizer manifold and gas conveying system for receiving liquid fuel from the carburetor and converting the liquid fuel to a vapor for powering the engine, said vaporizer manifold and gas conveying system comprising: heating tube means having inlet and outlet ends; heat conductive surface means being arranged in thermal contact with said heating tube means and positioned to come into contact with the liquid fuel received from the carburetor; inlet means for receiving some of the hot exhaust gases exiting the engine, said inlet means communicating with the inlet ends of said heating tube means so that the hot gases received at said inlet means pass through said heating tube means for heating said heat conductive surface means and vaporizing the liquid fuel coming in contact therewith, said vaporized fuel being provided to the intake manifold from said vaporizer manifold; outlet means extending between the outlet ends of said heating tube means and the carburetor to permit the hot exhaust gases exiting said vaporizer manifold to be supplied to the carburetor to be mixed with fresh air thereat; and an exhaust return line extending between the exhaust manifold and the carburetor for receiving other exhaust gases exiting the engine that are not received by said inlet means, said exhaust return line supplying said other exhaust gases to the carburetor to be mixed with fresh air thereat.