Abstract: This invention combines specific new and novel equipment with the equipment of a conventional combustion system for the use of liquid fuel oil to create a new system which converts the liquid fuel into gas and operates as a gas burner rather than as a liquid oil burner. The new and novel equipment thermally cracks liquid hydrocarbons into gaseous hydrocarbons which have substantially lower molecular weights than the liquids from which they were cracked. In the system the burner apparatus itself is modified to burn gas rather than liquid. In this new system the fuel burned does not consist of vapors of the liquids supplied to it but instead operates on the products of decomposition derived from the liquids.

Abstract: A complete system for a pollution free engine, in which liquid fuels are metered into a device attached to the engine, in which device the liquids are changed into gaseous fuels (not vapors), and the gases so produced are mixed with air so that they can be combusted perfectly in the engine without the production of any polluting emissions. The system includes the three elements required: a device to change liquid fuels into gaseous fuels, a valving system to meter the supply of liquid fuels, and a carburetor to effectively mix gaseous fuels with air.