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US 4,395,998 AGranted
Multi-fuel gasifier system for spark ignition engines
AssigneeHow Tong Industrial Co. Ltd.
InventorYou-May Chou
Life of this patent
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AssigneeHow Tong Industrial Co. Ltd.
InventorYou-May Chou
Estimating the term…
A multi-fuel gasifier system for internal combustion engines comprising a hollow casing having heat conducting plates therein in thermal contact with a heat exchange duct passing through the casing through which hot exhaust gas passes from the exhaust manifold to the exhaust pipe, a gasifying chamber substantially centrally located within the casing and surrounded by the heat conducting plates and defined by inner wall portions of the plates. An inlet in the casing wall communicates with one end of the chamber and the outlet of the carburetor. An outlet through the casing wall communicates with the other end of the chamber and the intake manifold of the engine. Adjacent the inlet end of the chamber is a first perforated vaporization cap through which fuel-air mixture from the carburetor passes and thereafter contacts a second conically shaped vaporization cap which deflects and sprays the fuel mixture into the vaporization chamber. Downstream of the conical vaporization cap is a second high temperature vaporization section of the chamber which is defined by that portion of the chamber surrounded by the inner walls of the heat conducting plates. An auxiliary fuel tank is provided and is connected to a pre-heating fuel line extending through the heat exchange pipe and coiled around the second high temperature vaporization section of the chamber so that fuel fed through one end is heated before passing to the carburetor inlet where it is mixed with the primary fuel prior to being mixed with air in the caburetor and passed into contact with the vaporization caps and through the gasification chamber of the gasifier. This invention is particularly useful for gasifying lower grade fuels such as diesel oil, or kerosine, for use in IC engines and for mixing lower grade fuels with gasoline for increasing power, efficiency, and economy of operating IC engines.
A multi-fuel gasifier for internal combustion engines having a carburetor, fuel pump, fuel line to the carburetor and intake and exhaust systems, comprising, a hollow casing, an inlet to said casing adapted to be connected to the air-fuel mixture outlet of a carburetor, an outlet from said casing adapted to be connected to the engine intake manifold, a gasifying chamber within said casing between said inlet and outlet, a plurality of heat conducting plates supported in spaced relationship with respect to each other within said casing with portions thereof forming at least part of the walls defining said chamber, heat conducting pipe means extending through said casing in thermal conducting contact with said plates having an inlet adapted to be connected to the engine exhaust manifold and an outlet adapted to be connected to the exhaust pipe, a heat transfer pipe connected at its ends to said exhaust manifold and said inlet of said heat conducting pipe means respectively and between its ends to one end of a heat regulator pipe, the other end of said heat regulator pipe being connected to the exhaust pipe, a heat regulating valve in said heat regulating pipe for controlling the flow of exhaust gas through said heat transfer pipe, means for operating said heat regulating valve, an auxiliary fuel tank, an auxiliary fuel line from said auxiliary fuel tank, a pre-heating fuel line extending through at least that part of said heat conducting pipe means that is disposed within said casing and in thermal conducting relationship with the exhaust gas within said heat conducting pipe means, and said pre-heating fuel line having an inlet connected to said auxiliary fuel lines and an outlet connected to the carburetor fuel inlet.
Dependencies are inferred from the claim text.