Automatic treatment of selected portions of exhaust gases

Claim 2

IN AN ENGINE HAVING A FUEL FEEDING SYSTEM, A THROTTLE MEANS CONNECTED TO SAID FUEL FEEDING SYSTEM, A DRIVER''S OPERABLE THROTTLE CONTROL, AN EXHAUST PIPE FOR CONDUCTING THE EXHAUST GASES FROM SAID ENGINE, AN EXHAUST TREATNG CONTAINER, PIPE CONECTING SAID CONTAINER TO SAID EXHAUST PIPE, VALVE MEANS CONNECTED TO SAID EXHAUST PIPE, SAID VALVE MEANS CONTROLLING THE PORTION OF SAID EXHAUST GASES THAT GO TO SAID TREATMENT CONTAINER, AN INTAKE MANIFOLD FOR SAID ENGINE, A SUCTION OPERATED MOTOR, A SECOND VALVE SAID SECOND VALVE CONTROLLING THE FLOW OF THE SUCTION VALVE, SAID ENGINE INTAKE MANIFOLD TO SAID MOTOR, SAID SECOND VALVE BEING MECHANICALLY CONNECTED TO SAID THROTTLE MEANS, SAID MOTOR OPERATING SAID FIRST VALVE TO DIRECT MORE EXHAUST GAS TO SAID EXHAUST TREATER AT LOW OR CLOSED THROTTLE OPERATION THAN AT FULL THROTTLE OPERATION.

Claim 3

AN ENGINE HAVING A THROTTLE VALVE AND CONTROL MECHAANISM FOR CONTROLLING THE RATE OF FUEL FEED AND TO CONTROL THE POWER OUTPUT OF SAID ENGINE, AN EXHAUST MANIFOLD, MAIN EXHAUST PIPE, A BY PASS EXHAUST SYSTEM ADAPTED TO RECEIVE EXHAUST FROM SAID MAIN EXHAUST PIPE AND RETURN EXHAUST GAS TO SAID EXHAUST PIPE, AN EXHAUST TREATING DEVICE IN SAID BY PASS EXHAUST SYSTEM, FIRST VALVE MEANS FOR CLOSING OFF SAID MAIN EXHAUST PIPE SO AS TO TURN MOST OF THE EXHAUST FOR SAID ENGINE THROUGH SAID AUXILIARY EXHAUST SYSTEM AND SAID EXHAUST TREATING SYSTEM, SAID FIRST VALVE MEANS BEING CONNECTED TO POWER MEANS, SECOND VALVE MEANS INDEPENDENT OF SAID THROTTLE VALVE, SAID SECOND VALVE MEANS BEING CONTROLLED BY THE POSTION OF SAID CONTROL MECHANISM, SAID POWER MEANS BEING CONTROLLED BY THE POSITION OF SAID THROTTLE CONTROL MECHANISM THROUGH SAID SECOND VALVE MEANS SO THAT LESS EXHAUST GAS IS TREATED AT WIDE OPEN THROTTLE THAN AT IDLE THROTTLE POSITION AND MOST OF SAID EXHAUST GAS FROM SAID ENGINE IS TREATED WHEN SAID THROTTLE IS CLOSED.

Claim 4

AN ENGINE HAVING A THROTTLE VALVE AND CONTROL MECHAANISM FOR CONTROLLING THE RATE OF FUEL FEED AND TO CONTROL THE POWER OUTPUT OF SAID ENGINE, AN EXHAUST MANIFOLD, MAIN EXHAUST PIPE, A BY PASS EXHAUST SYSTEM ADAPTED TO RECEIVE EXHAUST FROM SAID MAIN EXHAUST PIPE AND RETURN EXHAUST GAS TO SAID EXHAUST PIPE, AN EXHAUST TREATING DEVICE IN SAID BY PASS EXHAUST SYSTEM, FIRST VALVE MEANS FOR CLOSING OFF SAID MAIN EXHAUST PIPE SO AS TO TURN MOST OF THE EXHAUST FOR SAID ENGINE THROUGH SAID AUXILIARY EXHAUST SYSTEM AND SAID EXHAUST TREATING SYSTEM, SAID FIRST VALVE MEANS BEING CONNECTED TO POWER MEANS, SECOND VALVE MEANS INDEPENDENT OF SAID THROTTLE VALVE, SAID SECOND VALVE MEANS BEING CONTROLLED BY THE POSTION OF SAID CONTROL MECHANISM, SAID POWER MEANS BEING CONTROLLED BY THE POSITION OF SAID THROTTLE CONTROL MECHANISM THROUGH SAID SECOND VALVE MEANS SO THAT LESS EXHAUST GAS IS TREATED AT WIDE OPEN THROTTLE THAN AT IDLE THROTTLE POSITION AND MOST OF SAID EXHAUST GAS FROM SAID ENGINE IS TREATED WHEN SAID THROTTLE IS CLOSED.