Exhaust gas heated system for engine intake manifold

Claim 1

IN AN ENGINE INCLUDING AN INTAKE MANIFOLD PROVIDED WITH A HOT SPOT FOR HEATING A FUEL CHARGE PASSING THROUGH SAID INTAKE MANIFOLD, AN EXHAUST GAS HEATING SYSTEM FOR SAID HOT SPOT COMPRISING AN EXHAUST MANIFOLD FOR RECEIVING HOT EXHAUST GASES FROM THE ENGINE CYLINDERS, SAID EXHAUST MANIFOLD BEING COMPLETELY DISPLACED FROM SAID HOT SPOT OF SAID INTAKE MANIFOLD, DISCHARGE CONDUIT MEANS FOR CONDUCTING EXHAUST GASES FROM SAID EXHAUST MANIFOLD, A SECOND CONDUIT MEANS INTERCONNECTING SAID HOT SPOT WITH ONE OF SAID EXHAUST MANIFOLD AND DISCHARGE CONDUIT MEANS FOR CONDUCTING EXHAUST GAS TO SAID HOT SPOT, A THIRD CONDUIT MEANS SPACED APART FROM SAID SECOND CONDUIT MEANS INTERCONNECTING SAID HOT SPOT WITH SAID DISCHARGE CONDUIT MEANS FOR CONDUCTING EXHAUST GAS FROM SAID HOT SPOT TO SAID DISCHARGE CONDUIT MEANS, AND VALVE MEANS IN SAID DISCHARGE CONDUIT MEANS OPERABLE IN ONE POSITION TO PERMIT FREE FLOW OF EXHAUST GAS FROM SAID EXHAUST MANIFOLD THROUGH SAID DISCHARGE CONDUIT MEANS, AND BLOCKING FLOW FROM SAID THIRD CONDUIT MEANS TO SAID DISCHARGE CONDUIT MEANS AND OPERABLE IN A SECOND POSITION TO BLOCK FREE FLOW OF EXHAUST GAS FROM SAID EXHAUST MANIFOLD THROUGH SAID DISCHARGE CONDUIT MEANS AND PERMIT FREE FLOW OF GAS FROM SAID THIRD CONDUIT MEANS TO SAID DISCHARGE CONDUIT MEANS.