Post carburetor fuel charge forming device

Claim 2

A post carburetor fuel charging device adapted to be interposed between the carburetor and intake manifold of an internal combustion engine which comprises a drumlike insulated container having a top inlet to be mounted on the carburetor outlet and a bottom outlet to be mounted on the intake manifold inlet, plates in said container cooperating with the container to provide elongated separated air flow and fuel-air mix passages in heat exchange relation, means for introducing heated air to the air flow passage, means controlled by the carburetor flow valve regulating the flow of said air into the fuel-air mix passage, and means preventing the flow of raw fuel to the outlet.

Claim 3

The device of claim 1 including superimposed corrugated plates with concentric circular corrugations having valleys providing traps for arresting flow of raw fuel.

Claim 4

The device of claim 1 wherein the air path is initially along the bottom wall of the container, thence through an intermediate passage between the top and bottom walls and thence through a passage under the top wall of the container and the fuel-air mix path is initially through the top opening of the container thence radially outward to the periphery of the container, thence radially inward to the outlet of the container.

Claim 5

A post carburetor fuel charging device which comprises a cylindrical container having a central top inlet and a central bottom outlet adapted to respectively register with a carburetor outlet and an intake manifold of an internal combustion engine, plates in said container providing an elongated sinuous path for the fuel-air mix from the inlet to the outlet and trapping flow of raw fuel to the outlet, said plates cooperating with said container to provide a sinuous air flow path separated from the fuel-air mix path in extended heat exchange relation, means for introducing heated air to said air path, means for bleeding heated air from said air path into said fuel-air mix path for introducing secondary heated air to the air-fuel mix, and means controlling the flow of said secondary air into the fuel-air mix.

Claim 6

A post carburetor fuel charging device which comprises a cylindrical container having a central top inlet and a central bottom outlet adapted to respectively register with a carburetor outlet and an intake manifold of an internal combustion engine, plates in said container providing an elongated sinuous path for the fuel-air mix from the inlet to the outlet and trapping flow of raw fuel to the outlet, said plates cooperating with said container to provide a sinuous air flow path separated from the fuel-air mix path in extended heat exchange relation, means for introducing heated air to said air path, means for bleeding heated air from said air path into said fuel-air mix path for introducing secondary heated air to the air-fuel mix, and means controlling the flow of said secondary air into the fuel-air mix.

Claim 7

The device of claim 4 wherein the container has spaced, superimposed corrugated plates defining the air flow and fuel-air mixture flow paths with some of the plates preventing direct flow of the fuel-air mix from the inlet to the outlet.

Claim 8

The device of claim 4 wherein the containeR has top and bottom compartments for flow of the fuel-air mixture surrounded by compartments for flow of heated air and wherein the fuel-air mixture flows radially outward through the top compartment and radially inward through the bottom compartment.

Claim 9

The device of claim 4 including a bleeder valve connected to the carburetor flow valve through a linkage which opens the bleeder valve as the carburetor flow valve opens to increase the air flow to the device.

Claim 10

A post carburetor vaporizer device for an internal combustion engine to be mounted between the carburetor outlet and the intake manifold of the engine which comprises a housing having a central inlet and a central outlet, an air heater adapted to be heated by exhaust gases from the internal combustion engine, means for supplying hot air from the heater to said device, sinuous counterflow separated passages for hot air from said air heater and for the fuel-air mix from the carburetor in heat exchange relation in said housing, means for bleeding hot air into said fuel-air mix passage near the entrance to said passage from the carburetor, and valve means controlled by an accelerator linkage regulating the amount of hot air feed to the fuel-air mixture.

Claim 11

A post carburetor vaporizer device for an internal combustion engine to be mounted between the carburetor outlet and the intake manifold of the engine which comprises a housing having a central inlet and a central outlet, an air heater adapted to be heated by exhaust gases from the internal combustion engine, means for supplying hot air from the heater to said device, sinuous counterflow separated passages for hot air from said air heater and for the fuel-air mix from the carburetor in heat exchange relation in said housing, means for bleeding hot air into said fuel-air mix passage near the entrance to said passage from the carburetor, and valve means controlled by an accelerator linkage regulating the amount of hot air feed to the fuel-air mixture.

Claim 12

A fuel charge device which comprises a cylindrical container having central aligned top and bottom openings, a stack of spaced, superimposed corrugated plates in said container including top and bottom plates cooperating with the top and bottom walls of container to form an air flow path and intermediate plates between the top and bottom plates cooperating therewith to form fuel-air mix paths and cooperating with each other to form therebetween an air path, said intermediate plates having a central arch spanning the inlet and outlet to prevent direct flow therebetween, and means for bleeding air from the air path into the fuel-air mix path adjacent the inlet thereto.

Claim 13

A fuel charge device which comprises a cylindrical container having central aligned top and bottom openings, a stack of spaced, superimposed corrugated plates in said container including top and bottom plates cooperating with the top and bottom walls of container to form an air flow path and intermediate plates between the top and bottom plates cooperating therewith to form fuel-air mix paths and cooperating with each other to form therebetween an air path, said intermediate plates having a central arch spanning the inlet and outlet to prevent direct flow therebetween, and means for bleeding air from the air path into the fuel-air mix path adjacent the inlet thereto.