초록

Systems and methods of operation for internal combustion engines which employ molecular sieve technology to provide enhanced oxygen content in the air-fuel mixture during operation.

대표청구항 ▼

1. A system useful for operating an internal combustion engine, said system comprising: an internal combustion engine having an intake manifold and an exhaust manifold;an oxygen generator having an oxygen effluent, said oxygen generator comprising molecular sieves as a functional component; anda kno

1. A system useful for operating an internal combustion engine, said system comprising: an internal combustion engine having an intake manifold and an exhaust manifold;an oxygen generator having an oxygen effluent, said oxygen generator comprising molecular sieves as a functional component; anda knock sensor disposed near an engine block of said engine providing knock data,wherein an amount of said oxygen effluent from said oxygen generator is controllably delivered to said intake manifold by varying an electrical energy input to the oxygen generator, said amount of said oxygen effluent is further controlled based on said knock data provided by the knock sensor. 2. A system according to claim 1 wherein said oxygen generator utilizes pressure swing adsorption. 3. A system according to claim 1 wherein said oxygen generator and said internal combustion engine are both disposed on-board of a motorized vehicle selected from the group consisting of: automobiles, trucks, earth-moving equipment, and watercraft. 4. A system useful for operating an internal combustion engine, said system comprising: an internal combustion engine having an intake manifold and an exhaust manifold;a controller;a plurality of sensors signally coupled to said controller, said plurality of sensors being variously and effectively disposed within the intake manifold, an exhaust gas feedstream of said engine and near an engine block of said engine to gather engine operating parameter data, andan oxygen generator having an oxygen effluent, said oxygen generator comprising molecular sieves as a functional component,wherein an amount of said oxygen effluent from said oxygen generator is controllably delivered to said intake manifold by varying an electrical energy input to the oxygen generator, said gathered engine operating parameter data provided by at least one of said plurality of sensors effectuating control over said amount of said oxygen effluent from the oxygen generator. 5. A system according to claim 4, wherein said electrical energy input is controllably provided to said oxygen generator by said controller. 6. A system according to claim 4 wherein said oxygen effluent of said oxygen generator is directed to said intake manifold through a conduit comprising a control valve disposed therein, said control valve being controlled by said controller. 7. A system according to claim 4 wherein said oxygen generator and said internal combustion engine are both disposed on-board of a motorized vehicles elected from the group consisting of: automobiles, trucks, earth-moving equipment, and watercraft. 8. A system according to claim 4 wherein the quantity of oxygen provided by said oxygen generator is controlled by said controller. 9. A method for operating an internal combustion engine comprising: providing a system comprising: an internal combustion engine having an intake manifold and an exhaust manifold,a controller,a plurality of sensors signally coupled to said controller, said plurality of sensors being variously and effectively disposed within the intake manifold, an exhaust gas feedstream of said engine and near an engine block of said engine to gather engine operating parameter data,an oxygen generator having an oxygen effluent, said oxygen generator comprising molecular sieves as a functional component, an amount of said oxygen effluent of said oxygen generator being controllably delivered to said intake manifold by varying an electrical energy input to the oxygen generator; andstarting and operating said engine;wherein the amount of oxygen provided by said oxygen generator to said intake manifold is further controlled by said controller to be an effective amount of supplemental oxygen to beneficially modify the chemical composition of gases which exit said exhaust manifold during engine operation, said gathered engine operating parameter data provided by at least one of said plurality of sensors effectuating control over said amount of said oxygen effluent from the oxygen generator. 10. A method according to claim 9 wherein the total unburned hydrocarbon content of the gases exiting said exhaust manifold during engine operation is reduced by at least 50% on a mass basis as a result of oxygen provided to said intake manifold by said oxygen generator, compared to the situation wherein oxygen from said oxygen generator is not so provided. 11. A method according to claim 9 wherein the total unburned hydrocarbon content of the gases exiting said exhaust manifold during engine operation is substantially eliminated as a result of oxygen provided to said intake manifold by said oxygen generator, compared to the situation wherein oxygen from said oxygen generator is not so provided. 12. A method according to claim 9 wherein the total nitrogen oxides content of the gases exiting said exhaust manifold during engine operation is reduced by at least 50% on a mass basis as a result of oxygen provided to said intake manifold by said oxygen generator, compared to the situation wherein oxygen from said oxygen generator is not so provided. 13. A method according to claim 9 wherein the nitrogen oxides content of the gases exiting said exhaust manifold during engine operation is substantially eliminated as a result of oxygen provided to said intake manifold by said oxygen generator, compared to the situation wherein oxygen from said oxygen generator is not so provided. 14. A method according to claim 9 wherein the total carbon monoxide content of the gases exiting said exhaust manifold during engine operation is reduced by at least 50% on a mass basis as a result of oxygen provided to said intake manifold by said oxygen generator, compared to the situation wherein oxygen from said oxygen generator is not so provided. 15. A method according to claim 9 wherein the total carbon monoxide content of the gases exiting said exhaust manifold during engine operation is substantially eliminated as a result of oxygen provided to said intake manifold by said oxygen generator, compared to the situation wherein oxygen from said oxygen generator is not so provided. 16. A method according to claim 9 wherein said oxygen generator and said internal combustion engine are both disposed on-board of a motorized vehicle selected from the group consisting of: automobiles, trucks, earth-moving equipment, and watercraft. 17. A method according to claim 9 wherein the total soot content of the gases exiting said exhaust manifold during engine operation is reduced by at least 50% on a mass basis as a result of oxygen provided to said intake manifold by said oxygen generator, compared to the situation wherein oxygen from said oxygen generator is not so provided. 18. A method according to claim 9 wherein the total soot content of the gases exiting said exhaust manifold during engine operation is substantially eliminated as a result of oxygen provided to said intake manifold by said oxygen generator, compared to the situation wherein oxygen from said oxygen generator is not so provided. 19. A method according to claim 9, further comprising: providing an effective amount of exhaust gas recirculation to reduce combustion chamber temperatures of said internal combustion engine during its operation. 20. A method according to claim 9 wherein the oxygen content of the gases exiting said internal combustion engine is any amount between about 0.001% and about 1% on a molecular mass basis, including all percentages and ranges of percentages therebetween. 21. A method according to claim 9 wherein said internal combustion engine is fed at least one fuel selected from the group consisting of: gasoline, diesel fuel, methanol, ethanol, and C1 to C4 esters of fatty acids (biodiesel), including any mixtures of the foregoing.