Patent ID: 8272206

Claim:
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, and an 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, and wherein 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, and a 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, and wherein 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.