Fuel vaporizer for internal combustion engines

Claim 1

For use with an internal combustion engine having an intake manifold supplied with a fuel mixture of gasoline and air by a connected and communicating carburetor and having a circulating hot water system, with said carburetor having a mounting flange and said manifold having an exterior seat normally adapted To receive said flange, a device for vaporizing the fuel mixture as it is emitted from the carburetor into the manifold comprising a tubing coiled upon itself in a number of tightly contiguous turns having a common unobstructed center with such center defining an unobstructed pathway for the fuel mixture emitted from the carburetor, said turns assuming a frusto-conical configuration so that the tubing has a tapered shape and is provided with an open major end and an open minor end, said open major end being disposed at the carburetor and the open minor end being disposed within the manifold and spaced from the inner wall thereof, said tubing having substantially coplanar inlet and outlet end portions radially projecting from the tubing at the major end thereof, a body block provided with a center opening of a size and shape approximating that of the intake manifold and having radial bores communicating the exterior of the block with the center opening, one of said tubing end portions projecting radially from the radial bore towards but spaced from the center of the opening in the body block and being curvedly inclined downwardly towards the minor end and being coiled upon itself to define the open minor end with said turns of the tubing increasing in diameter upwardly to the major end from which the other end portion radially extends at the perimeter of the block opening into its associated radial bore in the block, said bores having fitting means for connection with hoses that are in communication with a hot water system for the constant flow of the hot water through the turns of the tubing so that each turn thereof is heated to the same degree whereby the fuel mixture flowing in the unobstructed center pathway in the tubing impinges on the heated turns and is instantaneously vaporized as it enters the manifold, said body block being fixedly interposed between the carburetor flange and the manifold seat and means that is normally adapted for fastening the carburetor flange onto the manifold seat passing through said block for anchoring it in its interposed position between the carburetor flange and the manifold seat with the tubing being wholly housed within the manifold in dependency from the body block to effect an even distribution of the vaporized fuel to all of the cylinders of the engine.