Abstract An apparatus for removing particles from exhaust gas includes an electrode support block formed of a support constituted of electrical insulation material and having a recessed portion that opens to the downstream side of the exhaust gas flow, the electrode support block being arranged in an intake tube through which the flow of exhaust gas that contains the particles is introduced with an intervening space for the flow of exhaust gas between the peripheral surface of the support block and the intake tube. A hollow needle electrode with a spray nozzle at its tip is provided in the base of the recessed portion and a cylindrical electrode is provided in opposition to the hollow electrode around the inner edge of the recessed portion. Provided downstream of the cylindrical electrode is an atomization chamber into which flow the exhaust gas and charged droplets emitted from the spray nozzle. A cylindrical collector electrode is provided around the inside of the atomization chamber. The arrangement prevents the exhaust gas from flowing into the space between the hollow electrode and the cylindrical electrode.
An apparatus for removing particles from exhaust gas comprising: an intake tube through which the flow of exhaust gas that contains the particles is introduced; an electrode support block provided in the intake tube with an intervening space for the flow of exhaust gas, the electrode support block being constituted of electrical insulation material and having a bowl-shaped recessed portion that opens toward the downstream side of the exhaust gas flow; a hollow needle electrode with a spray nozzle at its tip provided in the base of the bowl-shaped recessed portion; and a cylindrical electrode provided around the inner edge of the recessed portion in opposition to the hollow electrode; a liquid supply source connected to the spray nozzle by a channel; an atomization chamber provided downstream of the cylindrical electrode into which flow the exhaust gas and charged droplets emitted from the spray nozzle; a cylindrical collector electrode provided around the inner periphery of the atomization chamber; a direct current high voltage source that applies a high voltage between the cylindrical electrode and the hollow and collector electrodes; and a collector tube provided on the downstream side of the atomization chamber for collecting droplets on which particles in the exhaust gas have been captured.
Claim 2
Independent Claim
205 words
An apparatus for removing particles from exhaust gas comprising: an intake tube through which the flow of exhaust gas that contains the particles is introduced; an electrode support block provided in the intake tube with an intervening space for the flow of exhaust gas, the electrode support block being constituted of electrical insulation material and having a bowl-shaped recessed portion that opens toward the downstream side of the exhaust gas flow; a hollow needle electrode with a spray nozzle at its tip provided in the base of the bowl-shaped recessed portion; and a cylindrical electrode provided around the inner edge of the recessed portion in opposition to the hollow electrode; a liquid supply source connected to the spray nozzle by a channel; an atomization chamber provided downstream of the cylindrical electrode into which flow the exhaust gas and charged droplets emitted from the spray nozzle; a cylindrical collector electrode provided around the inner periphery of the atomization chamber; a direct current high voltage source that applies a high voltage between the cylindrical electrode and the hollow and collector electrodes; and a collector tube provided on the downstream side of the atomization chamber for collecting droplets on which particles in the exhaust gas have been captured.
Claim 3
Dependent Claim
22 words
The apparatus according to claim 1, wherein liquid from the liquid supply source is supplied to the spray nozzle by natural flow.
Claim 4
Dependent Claim
26 words
The apparatus according to claim 1, wherein the collector tube is comprised of an annular collection chamber and an exhaust pipe provided in the center portion.
Claim 5
Dependent Claim
16 words
The apparatus according to claim 3, wherein the annular collection chamber is filled with filter material.