초록 ▼

A Diesel engine anti-wear lubricant oil additive composition that includes organo-metallic compounds of Cu, Ce, etc., is used to catalytically burn-off diesel particulate matter (PM) collected by diesel particulate filter (DPF). A fuel borne catalyst (FBC) of Cu,Ce,Fe etc., required for regenerating

A Diesel engine anti-wear lubricant oil additive composition that includes organo-metallic compounds of Cu, Ce, etc., is used to catalytically burn-off diesel particulate matter (PM) collected by diesel particulate filter (DPF). A fuel borne catalyst (FBC) of Cu,Ce,Fe etc., required for regenerating the DPF is made by blending a predetermined quantity of used engine oil, removed from the engine crankcase oil system, with fuel in the fuel tank of a diesel engine equipped with DPF and EGR systems. A method of fumigating water and catalytic compounds of Cu, Fe, Ce, etc., into the air-intake system of a diesel engine in the EGR gases from the DPF or air, to reduce both PM and NOx emissions from a diesel engine, with improved engine lubrication performance, is also disclosed.

대표청구항 ▼

1. An engine lubricating oil composition for a diesel engine fitted with a diesel particulate filter and an exhaust gas re-circulating system in an exhaust system connected to said engine, said lubricating oil composition comprising a diesel engine lubricating oil and a catalyst additive comprising

1. An engine lubricating oil composition for a diesel engine fitted with a diesel particulate filter and an exhaust gas re-circulating system in an exhaust system connected to said engine, said lubricating oil composition comprising a diesel engine lubricating oil and a catalyst additive comprising cerium carboxylate, wherein said catalyst additive is operable to catalyze oxidative regeneration of said particulate filter, and wherein said catalyst additive is present in a range of about 0.05% to 10%, by weight of the total weight of the oil.2. The composition of claim 1, wherein the catalyst additive is present in a range of about 0.1% to about 6% of the total weight of the composition.3. The composition of claim 1, wherein the catalyst additive is present in a range of about 0.1% to about 2% of the total weight of the composition.4. A method for the lubrication of a diesel engine which comprises the step of lubricating a diesel engine, fitted with a diesel particulate filter, with the lubricating oil composition of claim 1.5. A method of operating a diesel engine fitted with a diesel particulate filter, comprising the steps of:adding an oil-soluble catalytic additive to oil in the engine; transferring a measured amount of engine oil, containing said catalytic additive, from said engine to diesel fuel in a fuel tank; burning fuel from the fuel tank in the diesel engine to produce exhaust; and trapping particulate matter from said exhaust on said diesel particulate filter; and igniting said trapped particulate matter to regenerate said particulate filter; whereby a small amount of said catalytic additive is present in said particulate matter to catalyze ignition thereof during regeneration of said diesel particulate filter; wherein said regeneration creates PM combustion products, further comprising a step of routing said PM combustion products from said particulate filter into an intake manifold of said engine; and further comprising an intermediate step of passing said PM combustion products through a water bath in an EGR accumulator. 6. The method of claim 5, wherein said water bath contains a catalytic water solution comprising a water-soluble catalytic compound of Cu, Ce, or Fe therein.7. An improved method of operating a diesel particulate filter coupled with a cooled EGR process by the use of a single diverter valve located downstream of dual filters in a diesel particulate filter system, said method comprising the steps oftrapping particulate matter from diesel exhaust on a diesel particulate filter; and igniting said trapped particulate matter to regenerate said particulate filter; wherein a small amount of a catalytic additive is present in said particulate matter to catalyze ignition thereof during regeneration of said diesel particulate filter; wherein said regeneration creates PM combustion products, and further comprising a step of routing said PM combustion products from said particulate filter into an intake manifold of said engine; and further comprising an intermediate step of passing said PM combustion products through a water bath in an EGR accumulator. 8. The method of claim 7, wherein said water bath contains a catalytic water solution comprising a water-soluble catalytic compound of Cu, Ce, or Fe therein.9. An emissions reduction system for a diesel engine equipped with an intake manifold and an oil sump, said system comprising:a first metering pump for pumping a measured amount of oil from said oil sump to a fuel tank; a bifurcated filtering exhaust assembly having a first branch with a first particulate filter therein and a second branch with a second particulate filter therein, said exhaust assembly comprising a diverter valve located downstream of said first and second filters for limiting exhaust flow through said assembly to one of said branches; an EGR accumulator tank for holding a water bath; an EGR tube for connecting said exhaust assembly to said EGR accumulator tank; and a conduit for conducting a gas from said accumulator tank to said intake manifold. 10. A method of operating a diesel engine in a vehicle having a fuel tank and a diesel particulate filter, comprising the steps of:adding an oil-soluble catalytic additive to oil in the diesel engine; transferring a measured amount of engine oil containing said catalytic additive from said diesel engine to fuel in the fuel tank; burning fuel from the fuel tank in the diesel engine to produce exhaust; trapping particulate matter from said exhaust on said diesel particulate filter; and igniting said trapped particulate mater to regenerate said particulate filter; whereby a small amount of said catalytic additive is present in said particulate matter to catalyze ignition thereof during regeneration said diesel particulate filter; wherein said regeneration creates PM combustion products, and routing said PM combustion products from said particulate filter into an intake manifold of said engine; and further comprising an intermediate step of passing said PM combustion products through a water bath in an EGR accumulator. 11. The method of claim 10, wherein said water bath contains a catalytic water solution comprising a water-soluble catalytic compound of Cu, Ce, or Fe therein.12. A method of operating a diesel particulate filter coupled with a cooled EGR process in a diesel particulate filter system, said method comprising the steps oftrapping particulate matter from diesel exhaust on a diesel particulate filter; and igniting said trapped particulate matter to regenerate said particulate filter; wherein a small amount of a catalytic additive is present in said particulate matter to catalyze ignition thereof during regeneration of said diesel particulate filter; wherein said regeneration creates PM combustion products, and further comprising a step of routing said PM combustion products from said particulate filter through a water bath in an EGR accumulator, and into an intake manifold of said engine. 13. The method of claim 12, wherein said water bath contains a catalytic water solution comprising a water-soluble catalytic compound of Cu, Cc, or Fe therein.14. A method of operating a diesel engine in a vehicle having a fuel tank and a diesel particulate filter, comprising the steps of:adding an oil-soluble catalytic additive to oil in the diesel engine; using a pump to transfer a measured amount of engine oil containing said catalytic additive from said diesel engine to fuel in the fuel tank; burning fuel from the fuel tank in the diesel engine to produce exhaust; trapping particulate matter from said exhaust on said diesel particulate filter; and igniting said trapped articulate matter to regenerate said particulate filter; whereby a small amount of said catalytic additive is present in said particulate matter to catalyze ignition thereof during regeneration said diesel particulate filter; wherein said regeneration creates PM combustion products; passing said PM combustion products through a water bath in an EGR accumulator; and routing said PM combustion products into an intake manifold of said engine; wherein said water bath contains a catalytic water solution comprising a water-soluble catalytic compound of Cu, Ce, or Fe therein.