Exhaust treatment device with air compressor regulator

Claim 1

APPARATUS FOR REMOVING IMPURITIES FROM AN INTERNAL COMBINATION ENGINE EXHAUST SYSTEM WHICH COMPRISES: AN EXHAUST CONDUIT; MEANS IN SAID EXHAUST CONDUIT FOR OXIDIZING EXHAUST INGREDIENTS NOT PREVIOUSLY OXIDIZED IN THE ENGINE; AND AIR INJECTION MEANS CONNECTED TO SAID EXHUSTED CONDUIT FOR INTRODUCING AIR INTO SAID EXHAUST CONDUIT TO PROVIDE A MIXTURE OF AIR AND EXHUSTED INGREDIENTS, SAID AIR INJECTIONS MEANS INCLUDING AN AIR PUMP HAVING A HOUSING WITH AIR INLET AND OUTLET PORTS, A ROTOR MEMBER ROTATABLY MOUNTED IN THE HOUSING FOR DRAWING AIR IN THROUGH SAID INLET PORT AND PUMPING THE AIR OUT THROUGH SAID OUTLET PORT, ROTARY POWER INPUT MEANS ROTABABLY MOUNTED IN THE HOUSING AND CONNECTED TO THE ROTOR FOR DRIVING THE ROTOR, AND AN AIRFLOW REGULATOR VALVE CONNECTED TO SAID PUMP INLET PORT, SAID REGULATOR VALVE INCLUDING A BODY HAVING A PASSAGE THERIN, AN AIR INLET OPENING AND AN AIR ORIFICE IN THE BODY COMMUNICATING WITH SAID PASSAGE, AIR CONDUIT MEANS CONNECTING THE ORIFICE TO THE PUMP INLET PORT, A VALVE ELEMENT OF SMALLER CROSS-SECTION THAN SAID PASSAGE DISPOSED IN SAID PASSAGE BETWEEN SAID INLET OPENING AND SAID ORIFICE, AND MOVABLE BETWEEN AN OPEN POSITION SPACED FROM SAID ORIFICE AND A CLOSED POSITION ADJACENT TO SAID ORIFICE IN WHICH THE VALVE ELEMENT PARTIALLY RESTRICTS THE ORIFICE, AND SAID VALVE ELEMENT BEING NORMALLY BIASED TOWARDS ITS SAID OPEN POSITION WHEREBY WHEN THE FLOW OF PUMP INPUT AIR THROUGH SAID VALVE IS BELOW A PREDETERMINED RATE THE VALVE WILL BE IN ITS OPEN POSITION AND THE AIR WILL HAVE RELATIVELY UNRESTRICTED PASSAGE THROUGH THE VALVE, AND WHEN THE FLOW OF PUMP INPUT AIR IS ABOVE SAID PREDETERMINED RATE THE AIR WILL BLOW THE VALVE ELEMENT TO ITS SAID CLOSED POSISTION AT WHICH THE VALVE ELEMENT WILL RESITRICT THE FLOW OF AIR THROUGH THE ORIFICE.