Abstract:
An exhaust gas treatment apparatus for an internal combustion engine includes: an exhaust gas treatment unit arranged in an exhaust passage of the internal combustion engine, the exhaust passage being configured such that i) exhaust gas flowing along a part of a wall face, which defines the exhaust passage, burbles away from the part of the wall face in an exhaust gas burble zone and ii) as a result of burble of exhaust gas away from the part of the wall face of the exhaust passage in the exhaust gas burble zone, exhaust gas disproportionately flows into the exhaust gas treatment unit or the amount of exhaust gas flowing into the exhaust gas treatment unit reduces. A plasma actuator is also provided arranged at the part of the wall face of the exhaust passage in the exhaust gas burble zone, the plasma actuator being configured to generate air current toward the exhaust gas treatment unit along the part of the wall face in exhaust gas inside the exhaust passage.
Abstract:
An exhaust gas purification device includes a diesel particulate filter (DPF) that traps particulate matter (PM), an exhaust gas temperature sensor that detects temperature of an exhaust gas, an electrostatic capacity detection unit that detects an electrostatic capacity of the DPF, an accumulated-amount estimation unit that estimates an amount of PM accumulated in the DPF on the basis of the electrostatic capacity, and a filter regeneration unit that can perform forced regeneration. On the basis of an accumulated-amount threshold that is lower than an upper PM accumulation limit, and a temperature threshold at which the accumulated PM can still be burned and removed even if an amount of fuel supply is reduced, the filter regeneration unit performs the forced regeneration if the amount of accumulated PM has reached the accumulated-amount threshold and the exhaust gas temperature reaches the temperature threshold.
Abstract:
Disclosed is a nitrogen oxide reduction device using dielectric barrier discharge plasma. The plasma nitrogen oxide reduction device may limitedly emit nitrogen oxide with a form of NO2 at a final outlet of the plasma nitrogen oxide reduction device by arranging a combustion unit, a wet treatment unit, and a plasma oxidizing unit in a housing. The emitted nitrogen oxide is finally treated in a wet scrubber operated as a reducer at a final exhaust end.
Abstract:
An after-treatment apparatus for exhaust gas in a combustion chamber includes a discharge device with an electrode exposed to the combustion chamber and installed in at least one of members constituting the combustion chamber, an antenna installed in at least one of the members constituting the combustion chamber so as to radiate electromagnetic waves into the combustion chamber, an electromagnetic wave transmission line installed in at least one of the members constituting the combustion chamber and with one end connected to the antenna and the other end covered with an insulator or dielectric and extending to a portion, in at least one of the members constituting the combustion chamber, distant from the combustion chamber, and an electromagnetic wave generator for feeding electromagnetic waves to the electromagnetic wave transmission line. The after-treatment apparatus is configured such that discharge is generated with the electrode of the discharge device and the electromagnetic waves fed from the electromagnetic wave generator through the electromagnetic wave transmission line are radiated from the antenna, while the exhaust gas remains in the combustion chamber after the exhaust gas is produced during the explosion stroke.
Abstract:
A system and method of treating air. Bipolar ionization is delivered to an airflow within a conduit from a tubeless ion generator. The ionized airflow may be delivered to a conditioned airspace by an HVAC system. In alternate applications, the airflow delivers ionized combustion air to an engine. The invention also includes a mounting assembly for positioning one or more ion generators into an airflow.
Abstract:
The present invention relates to an electrocatalytic system for the joint treatment of oxidizing polluting entities of the NOx type and reducing polluting entities of the hydrocarbons HC or CO type present in a gas to be purified, in particular an exhaust gas resulting from a combustion engine, said system comprising: a catalyst A for reduction of the polluting entities of the NOx type, a catalyst B for oxidation of the polluting entities of the hydrocarbons HC type and CO, a compound E which conducts electrons and ions by oxide ions, said catalysts A and B being in contact with the compound E, said compound E being composed of an oxide which conducts ions and electrons corresponding to the molar formulation: Ce1-y-zO2-xMyNz in which Ce is cerium, M is an element chosen from: Gd, Y, Sc, Sm, La, Pr, Nd, Er or Tb, y is between 0.01 and 0.4, N is an element having several degrees of valency chosen from: Ti, V, Cr, Mn, Fe, Co, Ni or Cu, z is less than 0.4 and x is greater than 0.05.
Abstract:
A desulphurization and decarbonisation apparatus includes (a) a starter for starting a reaction between an electropositive metal and sulphur oxides and carbon dioxide of a flue gas; (b) a first reaction chamber with a cooling unit for reducing the sulphur oxides and the carbon dioxide of the flue gas in an exothermic reaction with the electropositive metal; (c) a second reaction chamber for generating a first suspension including suspended carbon containing reaction products and sulphur containing reaction products by extracting solid reaction products of the first reaction chamber in a solvent; (d) a third reaction chamber for oxidizing the first suspension to generate a second suspension including suspended carbon containing reaction products and oxidized sulphur containing reaction products; and (e) a separator for separating the oxidized sulphur containing reaction products from the suspended carbon containing reaction products.
Abstract:
A method for regulating an ionization device in an exhaust gas after-treatment device of an internal combustion engine, includes placing at least one cathode at a distance from an anode in the exhaust gas after-treatment device, applying a high voltage between the at least one cathode and the anode, predefining a first value for the high voltage, detecting a current generated by the high voltage between the at least one cathode and the anode and predefining a second value for the high voltage if the detected current exceeds a predefinable first current intensity for a predefinable number of times. A motor vehicle in which the method is carried out is also provided.
Abstract:
The present invention provides methods and systems for an ion generator mounting device for application of bipolar ionization to airflow within a conduit, the device includes a housing for mounting to the conduit having an internal panel within the enclosure, and an arm extending from the housing for extension into the conduit and containing at least one opening. At least one coupling for mounting an ion generator to the arm oriented with an axis extending between a pair of electrodes of the ion generator being generally perpendicular to a flow direction of the airflow within the conduit.
Abstract:
Provided is an apparatus for processing exhaust fluid in which a fluid generated in a process chamber of an apparatus for manufacturing a semiconductor, a display panel, or a solar cell is ejected to the outside. The apparatus for processing exhaust fluid includes: a vacuum pump that is connected to the process chamber, vacuumizes the inside of the process chamber, and ejects the fluid generated in the process chamber to the outside; and a plasma reactor in which plasma is formed and the fluid generated in the process chamber decomposes, wherein the plasma reactor includes: an insulating conduit that is provided between the process chamber and the vacuum pump and provides a space in which the fluid decomposes; at least one electrode unit that is provided on the outer circumferential surface of the conduit and receives a voltage to form the plasma; and a buffer unit that is formed of an electrically conductive elastic substance and is disposed between the conduit and the electrode unit to attach the conduit and the electrode unit closely together.