Engine-exhaust-treatment system

Claim 1

IN COMBINATION WITH AN INTERNAL-COMBUSTION ENGINE HAVING AN EXHAUST MANIFOLD, AN EXHAUST-TREATMENT SYSTEM COMPRISING A RECEIVER CONDUIT CONNECTED TO SAID EXHAUST MANIFOLD FOR RECEIVING EXHAUST PRODUCTS, AN AIR BLOWER HAVING ITS DISCHARGE CONNECTED TO AN INTERMEDIATE REGION OF SAID RECEIVER CONDUIT, THE INTAKE OF SAID BLOWER COMMUNICATING WITH THE ATMOSPHERE, A TREATMENT CHAMBER CONNECTED IN FLUID COMMUNICATION WITH SAID RECEIVER CONDUIT DOWNSTREAM OF SAID BLOWER FOR RECEIVING A MIXTURE OF EXHAUST PRODUCTS AND AIR, A DISCHARGE CONDUIT CONNECTED TO SAID CHAMBER IN FLUID COMMUNICATION THEREWITH REMOTE FROM SAID RECEIVER CONDUIT, AN IMPELLER IN SAID CHAMBER FOR MOVING SAID MIXTURE FROM SAID RECEIVER CONDUIT TOWARD SAID DISCHARGE CONDUIT, A BED OF CATALYST IN SAID CHAMBER FOR CONTACT WITH SAID MIXTURE, IGNITION MEANS IN SAID CHAMBER FOR IGNITING COMBUSTIBLES IN SAID MIXTURE, AND A ONE-WAY VALVE BETWEEN SAID RECEIVER CONDUIT AND CHAMBER TO PREVENT FLUID RETURN TO SAID RECEIVER CONDUIT.