A reduction system for particulate materials in exhaust gas, which is connected to a tailpipe of an engine that burns a hydrocarbon-based fuel supplied from a fuel storage tank, and collects and removes particulate materials within the exhaust gas, may include a plasma reactor having a gas inlet and
A reduction system for particulate materials in exhaust gas, which is connected to a tailpipe of an engine that burns a hydrocarbon-based fuel supplied from a fuel storage tank, and collects and removes particulate materials within the exhaust gas, may include a plasma reactor having a gas inlet and an outlet, and a DPF (diesel particulate filter) trap having a filter. The tailpipe of the engine may communicate with the gas inlet of the plasma reactor, and the outlet of the plasma reactor may communicate with the DPF trap. The exhaust gas exhausted from the engine may be transferred to the DPF trap after being heated while passing through the plasma reactor.
대표청구항▼
1. A reduction system for particulate materials in exhaust gas, which is connected to a tailpipe of an engine that burns a hydrocarbon-based fuel supplied from a fuel storage tank, and collects and removes particulate materials in the exhaust gas, the reduction system comprising: a plasma reactor ha
1. A reduction system for particulate materials in exhaust gas, which is connected to a tailpipe of an engine that burns a hydrocarbon-based fuel supplied from a fuel storage tank, and collects and removes particulate materials in the exhaust gas, the reduction system comprising: a plasma reactor having an inlet for gas and an outlet,a fuel inlet and the fuel inlet is connected to the fuel storage tank,a body including a reaction chamber having the gas inlet and the outlet and a base formed at the lower end of the reaction chamber, the base including a mixing chamber communicating with the gas inlet and communicating with the reaction chamber via an inflow hole, andan electrode protruding into the reaction chamber while being supported by the base and being spaced apart from the inner surface of the reaction chamber,wherein the fuel inlet is formed on the base of the body and a heating chamber is formed in the electrode, the heating chamber communicating with the mixing chamber and the fuel inlet being connected to the heating chamber, andwherein the inflow hole is formed on the inner surface of the reaction chamber to skew off at an angle to a normal line of the inner surface of the reaction chamber, wherein mixed fuel formed by mixing gas and fuel in the mixing chamber flows into the reaction chamber through the inflow hole while forming a rotational flow and circulates around a circumference of the electrode, anda DPF (diesel particulate filter) trap having a filter,wherein the tailpipe of the engine communicates with the DPF trap and the outlet of the plasma reactor communicates with the tailpipe that connects the engine and the DPF trap, andwherein the system is configured so that fuel injected through the fuel inlet is plasma-reacted in the plasma reactor such that the fuel is burned to raise the temperature of the exhaust gas, and is transferred to the DPF trap. 2. The reduction system of claim 1, wherein the plasma reactor further comprises a first fuel injector being fitted to a first fuel inlet formed on the base of the body and spraying liquid fuel into the heating chamber, anda second fuel injector being fitted to a second fuel inlet connected to the reaction chamber and spraying liquid fuel into the reaction chamber. 3. The reduction system of claim 2, wherein the second fuel injector is fitted to skew off at an angle to the inner surface of the reaction chamber on the side thereof, and sprays and supplies liquid fuel above the electrode inside the reaction chamber. 4. The reduction system of claim 2, wherein the first fuel injector and the second fuel injector are connected to the fuel storage tank. 5. The reduction system of claim 2, wherein a protection plate is provided adjacent to the outlet of the plasma reactor in the tailpipe to block crosswind of the exhaust gas. 6. The reduction system of claim 5, wherein the protection plate is located at an upstream side of the exhaust gas before the outlet of the plasma reactor. 7. The reduction system of claim 2, further comprising a third fuel injector fitted to a third fuel inlet formed on the tailpipe at a position corresponding to the plasma reactor. 8. The reduction system of claim 2, wherein a heat exchanging conduit is formed in a wall body of the reaction chamber to communicate the gas inlet with the mixing chamber, the heat exchanging conduit being spiral in form along a circumference of the reaction chamber. 9. The reduction system of claim 1, wherein the plasma reactor includes a fuel injector fitted to the fuel inlet that is connected to the heating chamber of the electrode, the fuel injector spraying and supplying liquid fuel into the heating chamber, andwherein the electrode includes a spray nozzle through which the inside of the reaction chamber is communicated with the heating chamber. 10. The reduction system of claim 9, wherein the spray nozzle of the electrode is formed to skew off at an angle to an exterior surface of the electrode. 11. The reduction system of claim 9, wherein a heat exchanging conduit is formed in a wall body of the reaction chamber to communicate the gas inlet with the mixing chamber, the heat exchanging conduit being spiral in form along a circumference of the reaction chamber. 12. The reduction system of claim 1, wherein the tailpipe of the engine is branched off and communicates with the DPF trap and the inlet for gas of the plasma reactor, and wherein a part of the exhaust gas exhausted from the engine is transferred to the DPF trap after being heated while passing through the plasma reactor. 13. The reduction system of claim 12, wherein the system is configured so that fuel injected through the fuel inlet is plasma-reacted in the reaction chamber together with the exhaust gas flowing in through the gas inlet, such that the fuel is burned to raise the temperature of the exhaust gas, and is transferred to the DPF trap. 14. The reduction system of claim 1, wherein a heat exchanging conduit is formed in a wall body of the reaction chamber to communicate the gas inlet with the mixing chamber, the heat exchanging conduit being spiral in form along a circumference of the reaction chamber. 15. The reduction system of claim 1, wherein a fuel supply conduit fixed to the base of the body is fitted to the fuel inlet, and a gas supply conduit is fitted to a side of the fuel supply conduit while communicating with each other, thereby spraying the fuel supplied through the fuel supply conduit into the heating chamber with the gas supplied through the gas supply conduit.
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