EP1933606A1 - Electrode pour reacteur plasma - Google Patents
Electrode pour reacteur plasma Download PDFInfo
- Publication number
- EP1933606A1 EP1933606A1 EP06811550A EP06811550A EP1933606A1 EP 1933606 A1 EP1933606 A1 EP 1933606A1 EP 06811550 A EP06811550 A EP 06811550A EP 06811550 A EP06811550 A EP 06811550A EP 1933606 A1 EP1933606 A1 EP 1933606A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrode
- metal plate
- opening
- plasma reactor
- dielectric material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 58
- 239000002184 metal Substances 0.000 claims abstract description 58
- 239000003989 dielectric material Substances 0.000 claims abstract description 35
- 239000007789 gas Substances 0.000 description 23
- 239000011236 particulate material Substances 0.000 description 9
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 239000011148 porous material Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000002407 reforming Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- -1 stainless Chemical compound 0.000 description 1
- ZFXYFBGIUFBOJW-UHFFFAOYSA-N theophylline Chemical compound O=C1N(C)C(=O)N(C)C2=C1NC=N2 ZFXYFBGIUFBOJW-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/28—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a plasma reactor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/027—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means
- F01N3/0275—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means using electric discharge means
Definitions
- the present invention relates to an electrode for a plasma reactor used in an apparatus for removing components that are included in exhaust gas discharged from a factory, a plant, an internal-combustion engine, and the like and have an adverse effect on environment.
- Patent Document 1 there are provided two electrodes disposed to face each other, and a dielectric material laminated on any one of the two electrodes. In addition, grooves or pores are provided at predetermined periodic intervals on the surface of at least one of the electrode and the dielectric material. With such a configuration, plasma is generated between the electrodes disposed to face each other, exhaust gas is made to contact with the plasma, and thus it is possible to reduce emission amount of PM and the like in the exhaust gas.
- At least one of the electrodes facing each other has a plate-like ceramic dielectric material, and a plurality of conductive films disposed in the ceramic dielectric material with a predetermined space therebetween in a film thickness direction.
- at least a sheet of the conductive films has a plurality of through-holes that are formed therethrough to be penetrated in the film thickness direction.
- Patent Document 1 Japanese Unexamined Patent Application Publication No. 2005-138098
- Patent Document 2 Japanese Unexamined Patent Application Publication No. 2005-203362
- the grooves, the pores, and the through-holes are formed in a plate shape.
- plasma is not effectively generated between the electrodes (between the conductive films).
- the grooves or pores are formed on a surface of the electrodes or the dielectric material.
- plasma discharge is generated in two dimensions, that is, a plane, in the grooves or pores.
- the conductive film having the through-hole is disposed in the ceramic dielectric material, but plasma has a tendency to be generated in two dimensions in the through-hole. Therefore, plasma may not be efficiently generated between the conductive films.
- an electrode for a plasma reactor includes a plurality of electric-potential concentrating portions (charge concentrating portions) that are formed on at least one surface of a metal plate so as to protrude from the surface.
- whole shape of the portion is not limited.
- convex portions and concave portions are alternately arranged to continue in a longitudinal direction and a transverse direction, and the electric-potential concentrating portions are cut surfaces formed at the boundaries between the convex portions and the concave portions in the longitudinal direction.
- exemplary shapes of the convex portion and the concave portion include a substantially semicircular shape, an equilateral triangle shape, and the like, and arrangement of the portions has a cross-sectional wave shape as a whole.
- Such a cross-sectional wave shape is obtained by, for example, performing a press processing on a metal plate, and thus it is possible to increase productivity.
- the longitudinal direction corresponds to a flow direction of gas to be processed.
- the plasma reactor include a dielectric material formed on one surface in order to uniformly generate plasma discharge and stably generate plasma.
- an electrode for a plasma reactor includes a metal plate a part of which protrudes to form a through-hole having a first opening and a second opening, and a dielectric material that is formed on one surface of the metal plate.
- the dielectric material may be formed so that gas entering through the first opening of the metal plate is discharged from the second opening through a space formed between the metal plate 1 and the dielectric material 2.
- the dielectric material also may be formed so that gas entering from a first surface of the metal plate through the first opening is discharged from a second surface opposite to the first surface of the metal plate through the second opening.
- the through-holes are arranged in a flow direction of gas to be processed, and thus it is possible to extend time period during which the gas to be processed is being in contact with plasma generated in the plasma reactor.
- first opening and the second opening may have the same shape, and may have a circular shape or a triangular shape.
- An electrode 100 for plasma reactor according to the first embodiment (hereinafter, it is referred to an electrode) includes a metal plate 1 of which a cross-section has a substantially wave shape and a dielectric material 2 that has a plate shape and is disposed on one surface thereof.
- the metal plate 1 that constitutes the electrode 100 is made of, for example, nickel, copper, iron, stainless, tungsten, or the like.
- a thickness of the metal plate 1 is, for example, 200 ⁇ 10 -6 m (meter), but the thickness is not limited to this when the thickness can obtain stiffness enough to maintain the substantially wave shape as described above.
- the metal plate 1 has convex portions 3 and concave portions 4 arranged thereon to alternately continue in a transverse direction thereof.
- the metal plate 1 also has convex portions 3 and concave portions 4 arranged thereon to alternately continue in a longitudinal direction.
- the longitudinal direction (the direction of an arrow 5 in Fig. 2 ) represents a direction in which exhaust gas flows in a case where the electrode 100 is attached to the plasma reactor, for example, the case of a car engine.
- the transverse direction represents a direction substantially orthogonal to the longitudinal direction.
- each of the concave portions 4 alternately continues between the convex portion 3 and convex portion 3. Therefore, in the same manner as a cross-section 7 in the longitudinal direction of the metal plate 1, a plurality of cut surfaces 8 are formed so as to be exposed to the boundaries between the convex portions 3 and the concave portions 4 in the longitudinal direction.
- the cut surfaces 8, which are electric-potential concentrating portions when a voltage is applied to the electrode 100, are formed by cutting the convex portions 3 in the case where, for example, the convex portions 3 continuing in the longitudinal direction are formed to be concave at a predetermined interval.
- the convex portions 3 and the concave portions 4 alternately continue in a transverse direction, and thus the convex portions 3 and the concave portions 4 has a partially continuous shape.
- the invention includes not only such the shape but also a structure that the convex portions 3 and the concave portions 4 having the same length alternately continue in the transverse direction.
- exhaust gas entering through one opening of the convex portion 3 is discharged from the other opening of the convex portion 3 through a space formed between the metal plate 1 and the dielectric material 2.
- the metal plate 1 mentioned above can be manufactured by, for example, pressing and passing the metal plate material between two rotating bodies having a patterned indented surface. Accordingly, the metal plate material having a predetermined width is continuously processed, and thus it is possible to easily make the metal plates 1 having the same shape and decrease production cost. Moreover, in the same manner as the first embodiment, by using the metal plate having a small thickness, it is possible to decrease weight of the electrode 100.
- the dielectric material 2 has a flat plate shape and is disposed on one surface of the metal plate 1. Disposition of the electrodes in the plasma reactor is configured so that the electrode 100 has the dielectric material 2 and the electrode 200 has only the metal plates 1 with the dielectric material 2 interposed therebetween. In this case, a thickness of the dielectric material 2 is set to be the same as a distance enough to generate plasma when a predetermined voltage is applied to the electrode 100 and electrode 200.
- each of the metal plates 1 of the electrodes 100 and 200 has the same size and shape, and each of the metal plates faces to each other so that the convex portions 3 of the electrode 200 are positioned to correspond to the convex portions 3 of the electrode 100.
- a distance between the metal plate 1 of the electrode 100 and the metal plate 1 of the electrode 200 is uniform in the entire range of the metal plates 1.
- the plurality of cut surfaces 8 are exposed in the longitudinal direction.
- the cut surfaces 8 protrude from the boundaries between the convex portions 3 and the concave portions 4 in the longitudinal direction of the metal plate 1.
- the electric potential is concentrated.
- the electric potential concentration remarkably occurs in the edge portion of the cut surfaces 8.
- electron discharge from the cut surfaces 8 where electric potential is concentrated is activated as compared with the surfaces of the convex portions 3 and the concave portions 4.
- Fig. 4 illustrates a plasma radiation state when the one sheet of the dielectric material is disposed between two electrodes. Plural pairs of the electrodes and the dielectric materials are laminated, and the plasma reactor is formed, and thus it is possible to perform uniform discharge in the entire reactor.
- Fig. 4 illustrates a microscopic radiation state and a uniform state as a whole in a macroscopic view.
- gas to be processed flows in the longitudinal direction. Therefore, it is possible to extend time period during which the gas to be processed is being in contact with plasma generated in the plasma reactor. Moreover, since the convex portions 3 and the concave portions 4 are flow passages of gas to be processed, it is possible to decrease flow resistance, and so it is possible to increase process ability.
- the cross-section in the transverse direction of the metal plate 1 is configured to have a semicircular shape, that is, a substantially wave shape, but it is allowed to employ a sine wave shape, a parabolic shape, an equilateral triangular shape, a polygonal shape, and the like. These shapes may be employed when the shapes are selected in consideration of processing convenience.
- the dielectric material 2 is provided on one side surface of the metal plate 1.
- the dielectric materials 2 may be provided on both side surfaces of the metal plate.
- the portion allowing the electric potential to be concentrated is the cut surfaces 8.
- the invention is not limited to this, and it is possible to form the portion allowing the electric potential to be concentrated by disposing protrusions or ribs on the surface of the metal plate 1.
- Table 1 represents a research about a condition at the time of radiating plasma in a primary output voltage of 300V and a primary power outputting condition at the time of starting discharge by using a conventional electrode of which both surfaces have grooves formed thereon, an electrode according to the invention, and a pulse power supply that is boosted as much as two stages.
- a voltage at the time of radiating plasma and generation of a whisker-shaped waveform that is a characteristic waveform at the time of generating plasma are judged by an oscilloscope, and are measured by using a system capable of judging the inception voltage for plasma discharge. From the table 1, it is possible to realize that the inception voltage for plasma discharge is low in the case where the electrode according to the invention is used as compared with the case where the conventional electrode is used.
- a plurality of electric-potential concentrating portions are formed to protrude from one surface of a flat metal plate material by being cut and raised therefrom.
- the metal plate 301 is provided with protruding portions 310 that are arranged at a predetermined distance away from each others, that is, at a predetermined pitch in a longitudinal direction and a transverse direction.
- the protruding portions are formed in a trigonal pyramid shape by being cut and raised.
- the longitudinal direction and transverse direction of the second embodiment are the same as those of the first embodiment mentioned above.
- the bottom side of the trigonal pyramid shape is formed as a through-hole, and side walls 312 are formed to cover the through-hole.
- the front side thereof in the longitudinal direction is cut off from the metal plate and the rear side thereof in the longitudinal direction is connected to the metal plate.
- an opening 313 having a triangular shape is formed at the front side of the protruding portion 310 in the longitudinal direction, and a cut surface 314 having the substantially same thickness as the metal plate material is formed around the opening 313.
- the protruding portion 310 is disposed not to overlap with the front thereof and be located on an intermediate position between the protruding portions 310 of the front row, in the longitudinal direction.
- the protruding portion 310 is formed to be centered on each tip point of triangular meshes.
- a ridge portion 315 is formed on the rear side thereof by the side walls 312 of each protruding portion, and a tip portion 316 is located on the opening 313. Edge of the ridge portion and the tip portion has a sharp shape, and electric field is remarkably concentrated on the edge along with the edge portion forming the cut surfaces 314.
- the plurality of the cut surfaces 314 are disposed to protrude. Therefore, it is possible to obtain the same effect of the aforementioned embodiment.
- the protruding portions 310 do not need to be formed at the predetermined pitch, and may be randomly or optionally disposed, respectively.
- the protruding portions 310 are easily manufactured to have the same heights when the cutting off processing is performed. However, the protruding portions do not need to have the same heights if the protruding portions include the cut surfaces 314 clearly formed and the tip portion 316 having a sharp end.
- the dielectric material 2 having a flat plate shape was described, but the dielectric material may be provided by coating the metal plates 1 and 301.
- the dielectric material may be formed by coating at least one surface (in the second embodiment, which is the surface of the side on which the protruding portions 310 are provided) of the metal plates 1 and 301.
- the entire metal plates 1 and 301 may be coated with the dielectric material.
- the cut surfaces may be also coated with the dielectric material.
- exhaust gas entering through the opening 313 from the surface where the protruding portions 310 of the metal plate 301 exist is discharged from the surface opposite thereto through the other opening 323 including the end portion 311.
- Exemplary applications of the invention include a plasma reactor of a device installed to process exhaust gas including PM such as an exhaust gas purification device for car, and an exhaust gas processing device in a facilities like a plant which discharges smoke.
- PM such as an exhaust gas purification device for car
- an exhaust gas processing device in a facilities like a plant which discharges smoke.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Plasma Technology (AREA)
- Processes For Solid Components From Exhaust (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005292997A JP4980601B2 (ja) | 2005-10-05 | 2005-10-05 | プラズマ反応器用電極 |
PCT/JP2006/320238 WO2007043541A1 (fr) | 2005-10-05 | 2006-10-04 | Electrode pour reacteur plasma |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1933606A1 true EP1933606A1 (fr) | 2008-06-18 |
Family
ID=37942776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06811550A Withdrawn EP1933606A1 (fr) | 2005-10-05 | 2006-10-04 | Electrode pour reacteur plasma |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1933606A1 (fr) |
JP (1) | JP4980601B2 (fr) |
WO (1) | WO2007043541A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3389345A4 (fr) * | 2015-12-09 | 2019-05-01 | NGK Spark Plug Co., Ltd. | Réacteur à plasma et plaque d'électrode à plasma |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010045506A1 (de) * | 2010-09-15 | 2012-03-15 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Vorrichtung zur Erzeugung eines elektrischen Feldes in einem Abgassystem |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002361028A (ja) * | 2001-06-12 | 2002-12-17 | Daikin Ind Ltd | プラズマ反応器及び空気浄化装置 |
JP2005138098A (ja) * | 2003-10-14 | 2005-06-02 | Nissan Motor Co Ltd | 反応制御装置、改質方法及び改質システム |
JP4494955B2 (ja) * | 2003-12-19 | 2010-06-30 | 日本碍子株式会社 | プラズマ発生電極及びプラズマ反応器 |
JP4546123B2 (ja) * | 2004-03-19 | 2010-09-15 | 財団法人地球環境産業技術研究機構 | プラズマ反応器 |
-
2005
- 2005-10-05 JP JP2005292997A patent/JP4980601B2/ja not_active Expired - Fee Related
-
2006
- 2006-10-04 WO PCT/JP2006/320238 patent/WO2007043541A1/fr active Application Filing
- 2006-10-04 EP EP06811550A patent/EP1933606A1/fr not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2007043541A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3389345A4 (fr) * | 2015-12-09 | 2019-05-01 | NGK Spark Plug Co., Ltd. | Réacteur à plasma et plaque d'électrode à plasma |
Also Published As
Publication number | Publication date |
---|---|
WO2007043541A1 (fr) | 2007-04-19 |
JP4980601B2 (ja) | 2012-07-18 |
JP2007103209A (ja) | 2007-04-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7922978B2 (en) | Plasma generating electrode and plasma reactor | |
JP4746986B2 (ja) | プラズマ発生電極及びプラズマ発生装置、並びに排気ガス浄化装置 | |
EP3389345B1 (fr) | Réacteur à plasma et plaque d'électrode à plasma | |
JP5839766B2 (ja) | プラズマ反応器 | |
JP4329466B2 (ja) | 排気浄化装置 | |
JP4494955B2 (ja) | プラズマ発生電極及びプラズマ反応器 | |
EP1933606A1 (fr) | Electrode pour reacteur plasma | |
EP1701597B1 (fr) | Electrode pour generation de plasma, procede de production associe et reacteur a plasma | |
WO2011062060A1 (fr) | Appareil de décomposition de gaz | |
JPH09103684A (ja) | 並列発熱型ハニカムヒーター | |
EP3318735B1 (fr) | Électrode de génération de plasma, panneau d'électrode, et réacteur à plasma | |
JP3054226B2 (ja) | 電解槽 | |
JP2017014977A (ja) | プラズマリアクタ | |
EP1932587A1 (fr) | Electrode pour reacteur plasma | |
JP2018003605A (ja) | プラズマリアクタ | |
JP2004249283A (ja) | 自動車用セラミック触媒担体の一体型円形セル構造 | |
JP2008198469A (ja) | プラズマ発生用電極 | |
JPH0924236A (ja) | プラズマ法排ガス浄化装置 | |
JPH11276928A (ja) | コロナ放電装置および該装置を備えた空気清浄機 | |
US20070045246A1 (en) | Plasma generating electrode and plasma reactor | |
EP2022953A1 (fr) | Électrode pour réacteur plasma | |
RU2555711C2 (ru) | Устройство для создания электрического поля в системе выпуска отработавшего газа (ог) | |
JP3573564B2 (ja) | 有害ガス除去装置及びその除去方法 | |
JP2005307831A (ja) | 排ガス浄化装置 | |
JP2005036671A (ja) | 排気浄化装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20080331 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: DAIHATSU MOTOR COMPANY, LTD. |
|
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20091103 |