CN1080976A - The catalysis cleaning device of waste gas - Google Patents
The catalysis cleaning device of waste gas Download PDFInfo
- Publication number
- CN1080976A CN1080976A CN93106045A CN93106045A CN1080976A CN 1080976 A CN1080976 A CN 1080976A CN 93106045 A CN93106045 A CN 93106045A CN 93106045 A CN93106045 A CN 93106045A CN 1080976 A CN1080976 A CN 1080976A
- Authority
- CN
- China
- Prior art keywords
- tail end
- end sections
- honeycomb body
- brazing filler
- filler metal
- 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.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title abstract description 5
- 238000006555 catalytic reaction Methods 0.000 title abstract description 4
- 239000002912 waste gas Substances 0.000 title abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 93
- 238000005219 brazing Methods 0.000 claims description 62
- 239000000945 filler Substances 0.000 claims description 62
- 239000007769 metal material Substances 0.000 claims description 23
- 208000002925 dental caries Diseases 0.000 claims description 6
- 210000001015 abdomen Anatomy 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
- B01D53/9454—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
-
- 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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2807—Metal other than sintered metal
- F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Toxicology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Exhaust Gas After Treatment (AREA)
- Catalysts (AREA)
Abstract
The method of a kind of catalysis cleaning device of waste gas and this device of manufacturing.A honeycomb body of being made up of many sheetmetals that are partly with structural form at least is provided, be formed with the groove that many fluids therefrom flow through on the sheetmetal, they are positioned in the sleeve, the outward edge of sheetmetal is on honeycomb body periphery, at least some sheetmetals have straight tail end sections, the tail end sections that at least some are straight overlaps on the tail end sections of at least one adjacent straight separately, and two adjacent straight tail end sections outward edge contact sleeves, thereby between tubular sleeve and two equitant straight tail end sections, form the capillary tube cavity.
Description
The present invention relates to a kind of catalysis cleaning device and a kind of method of making this device of waste gas.
Publish useful sheetmetal level and smooth and ripple on European patent EP 0245737 B1 and make the metal supporting body, and the tail end of thin plate is a level and smooth sections, these level and smooth tail end sections roughly extend between the adjacent metal thin plate, and with its outer end brazing filler metal or on the sleeve around being welded on.
A major defect of this metal supporting body is exactly to have only indivisible sheetmetal area to be connected on the sleeve.
Among the embodiment who on German patent DE 4016276 C1 and European patent EP 0245736 B1, is narrated also there be similar the connection.
One object of the present invention is exactly to strengthen sleeve to be connected with brazing filler metal between the honeycomb body in said apparatus.
This purpose is reached like this, promptly provide one to have the honeycomb body that the sheetmetal of structural form is formed by many at least a portion, be formed with the groove that many fluids therefrom flow through on the sheetmetal of band structure form, they are positioned in the sleeve, the outward edge of described sheetmetal is on the periphery of described honeycomb body, here at least some described sheetmetals have straight tail end sections, at least some described straight tail end sections overlap on the tail end sections of at least one adjacent straight separately, and the outward edge of the tail end sections of two adjacent straight contact is on described sleeve, thereby forms axially extended a plurality of first capillary tube cavitys between the sleeve of tubulose and two equitant straight tail end sections.
According to the present invention, corrugated sheet metal has level and smooth sections at their tail end place, these sections since the operation of reversing or twining fit together mutually, thereby form an overlapping sheetmetal skin at peripheral position.The capillary tube cavity of Yan Shening is present between the adjacent tail end sections inwardly.Between the tail end of the sheetmetal that adjoins sleeve, promptly between the level and smooth tail end sections and sleeve below the sleeve, on axial direction, be formed with a plurality of cavitys, these cavitys communicate with the capillary tube cavity.The brazing filler metal material enters cavity and is sucked in the cavity by capillarity when the brazing filler metal operation.Like this, just be formed with a brazing filler metal material layer along the circle edge of metal supporting body, the tail end sections of sheetmetal just is embedded in this material layer.
The length of level and smooth tail end sections depends on the wave amplitude of corrugated sheet metal, and its value is 3 to 12 times of wave amplitude, and preferably 5 to 10 times, this numerical value can be suitable for its how much environment.In its cross section is not that the distribution around circle edge of sheetmetal tail end is uneven in the catalyst of circle, therefore requires level and smooth tail end sections correspondingly to add longer.
In the embodiment of another metal supporting body, corrugated sheet metal does not have level and smooth tail end sections and is shorter than level and smooth sheetmetal, thus the tail end contact of after sheetmetal is by coiling, having only level and smooth sheetmetal they on the attached tubular sleeve.Corrugated sheet metal is clamped between the level and smooth sheetmetal by frictional force, also can be connected on the level and smooth sheetmetal with brazing filler metal on its end face.The long section of the outstanding sections of level and smooth sheetmetal approximately is 8 to 12 times of corrugated sheet wave amplitude.
To narrate the manufacture method of this exhaust fume catalytic cleaning device below.
This method is made up of mechanicalness manufacturing and a brazing filler metal operation.In mechanicalness was made, corrugated metal thin slice or ripple and level and smooth sheet metal slices mutually overlapped together, and are wound into definite shape then, and the metal supporting body that this is prefabricated into just is inserted in the sleeve and must covers one deck brazing filler metal material.The brazing filler metal material that is stamped on the metal supporting body can be the brazing filler metal film that can buy on one deck market, and its thickness is preferably 0.025mm to 0.15mm.It must contact with metal supporting body and sleeve by rights.A kind of method that simply covers the brazing filler metal material is to apply a brazing filler metal film on its end face.This can be by being connected on one or two end face of supporting body this film is deposited after connecting metal supporting body and sleeve, and fixed thereon, for example realizes with the such mode of dot welding method in case of necessity.Because the gas that produces in the metal supporting body in the brazing filler metal process can expand in heating process, most convenient be with a porose brazing filler metal film, the gas that may produce in the metal supporting body just can be overflowed like this.The degree of depth that the brazing filler metal material infiltrates vertically is subjected to the influence of the thickness of brazing filler metal film in certain limit, this is because the brazing filler metal material is to be drawn in the space between the sheetmetal by capillary force to go.
The another kind of possible method that connects the brazing filler metal material of applying is that bag is wrapped one deck brazing filler metal film with the brazing filler metal film around the whole like this metal supporting body on the metal supporting body that is prefabricated into, and then metal supporting body and brazing filler metal film is inserted in the sleeve simultaneously.The brazing filler metal film that is in like this between metal supporting body and the sleeve is liquefied in welding, thereby the metal supporting body can expand slightly and the internal surface of sleeve is classified close applying as.Squeezed the brazing filler metal material that and flow into the first capillary tube cavity and neutralize in the second capillary tube cavity, formed a good connection.The method of this insertion brazing filler metal film make the metal supporting body can or along its whole length or almost on one or several narrow position, for example on the center portion of metal supporting body, with the brazing filler metal film its clad is lived in so-called belly coating mode.
In another preferred embodiment, the metal supporting body is covered by a box-like brazing filler metal film.This is that the brazing filler metal film is placed on the end face of metal supporting body, and the projection contact that makes the brazing filler metal film if necessary, and connects thereon on the periphery of metal supporting body.The metal supporting body that is covered with the brazing filler metal material now is inserted in the sleeve, and the brazing filler metal film is then still stayed on the end face and on the peripheral position between metal supporting body and the sleeve.This metal supporting body that has covered the brazing filler metal material of brazing filler metal is proved to be very easily, because independent sheet metal layers is connected very goodly owing to covered the brazing filler metal material on their peripheries with sleeve, but also, also connect very strongly each other owing to be stamped the brazing filler metal material on their end face.Box-like brazing filler metal film can only be connected on the termination, also can be on two terminations.
From following narration and accompanying drawing, can recognize additional embodiments of the present invention and application, wherein:
Fig. 1 is the sectional view of a related sleeved metal supporting body;
Fig. 2 is folded a ripple and a level and smooth sheetmetal with level and smooth tail end sections; With
Fig. 3 is the schematic representation of metal supporting body in sleeve that includes the brazing filler metal film of insertion.
Fig. 1 shows the part of metal supporting body of the present invention.Have tail end sections 5,5 ' level and smooth and corrugated sheet metal 3,4 push away folded mutually and be wound into a metal supporting body or honeycomb body 1 along same direction, metal supporting body 1 is inserted in the sleeve 2.The level and smooth tail end sections 5,5 of level and smooth and corrugated sheet 3,4 ' outward edge 6 and the internal surface of sleeve 2 fit closely.The level and smooth tail end sections 5,5 of the sheet metal layers 3,4 below sleeve ' outward edge 6 and sleeve 2 between be formed with the first capillary tube cavity 7, this cavity in axial direction is arranged on the circle edge of metal supporting body 1, and extends in continuously on the whole length of metal supporting body 1.These first capillary tube cavitys 7 with adjacent level and smooth tail end sections 5,5 ' between the second capillary tube cavity 8 that extends internally be connected.In the brazing filler metal operation, the first capillary tube cavity 7 and the second capillary tube cavity 8 are filled up by the brazing filler metal material whole or in part, cause the tail end of sheetmetal 3,4 reach each other with sleeve 2 between firm the connection.
Fig. 2 is the schematic representation of a folded level and smooth and corrugated sheet metal 3,4.Total length 1ges is a length 1
AWith 1
BAnd, altogether in length 1
BBe level and smooth tail end sections 5, the 5 ' part of total length.Length 1
BThe wave amplitude X that depends on corrugated sheet metal 4 submits to following rough relation:
1
B＝10x
Fig. 3 schematically demonstrates before brazing filler metal operation brazing filler metal film 10 and is clipped in various configurations between metal supporting body 1 and the sleeve 2.In Fig. 3 a, brazing filler metal film 10 is placed on the end face 11 of metal supporting body 1.The brazing filler metal film is only with its cut edge contact sleeve 2.
Fig. 3 b shows a metal supporting body 1, and periphery 12 is encased by brazing filler metal film 10 fully therein, thereby the latter is sandwiched between metal supporting body 1 and the sleeve 2.
Brazing filler metal film 10 also is to be sandwiched between metal supporting body 1 and the sleeve 2 in Fig. 3 c.Brazing filler metal film 10 is on the central position of the circle edge of metal supporting body 1, forms a belly and coats 13, thereby having only this position to be connected on the sleeve 2 after the brazing filler metal.Like this, two of metal supporting body 1 terminations can be along axial expansion under heat load.
Fig. 3 d and 3e show box-like 14 configuration modes of brazing filler metal film 10.Brazing filler metal film 10 is attached on the end face of metal supporting body, and the periphery of the side projection of brazing filler metal film 10 and metal supporting body 1 is fitted closely there.The edge of box-like brazing filler metal film 14 can cover the major part or the fraction of the periphery of metal supporting body 1 as requested.Fig. 3 d shows box-like brazing filler metal film 14 collocation methods of a kind of " flat ", respectively disposes one on each end face of metal supporting body 1 therein; Fig. 3 e shows single box-like brazing filler metal film 14 collocation methods, and in this situation, the edge covers the major part of the periphery of metal supporting body 1.
Claims (13)
1, a kind of honeycomb body (1), it is had the sheetmetal (3 of structural form by many at least a portion, 4) form, be formed with the groove that many fluids therefrom flow through on the sheetmetal of band structure form, they are positioned in the sleeve (2), described sheetmetal (3,4) outward edge (6) is on the periphery of described honeycomb body (1), at least some described sheetmetals (3 here, 4) has straight tail end sections (5,5 '), at least some described straight tail end sections (5,5 ') overlap on the tail end sections of at least one adjacent straight separately, and two adjacent straight tail end sections (5,5 ') outward edge contact on described sleeve (2), thereby between the sleeve (2) of tubulose and two equitant straight tail end sections (5,5 ') the axially extended a plurality of first capillary tube cavitys (7) of formation.
2, according to the honeycomb body (1) of claim 1, it is characterized in that: the sheetmetal (3,4) that wherein said at least a portion has a structural form be alternately be essentially the level and smooth thin plate (3) and the thin plate (4) of ripple.
3, according to the honeycomb body (1) of claim 2, it is characterized in that wherein only having describedly being essentially level and smooth thin plate (3) and having straight tail end sections, these sections are given prominence on the outward edge of described corrugated sheet (4).
4,, it is characterized in that honeycomb body (1) described here is the part with the catalyst in the vehicle of internal-combustion engine according to the honeycomb body of aforementioned any claim.
5, according to the honeycomb body (1) of claim 1 or 2, it is characterized in that: it has the second capillary tube cavity (8) that extends internally that is connected with the described first capillary tube cavity (7).
6, according to the honeycomb body (1) of claim 3, the ripple that it is characterized in that wherein said corrugated sheet (4) has the wave amplitude (X) of a certain altitude and described straight tail end sections has a length (1
B), the length of straight tail end sections described here is 3 to 12 times of height of described wave amplitude, preferably 5 to 10 times.
7,, it is characterized in that wherein to the interior filling of the described first capillary tube cavity (7) of small part brazing filler metal material (10) according to the honeycomb body (1) of claim 1 or 3.
8,, it is characterized in that wherein to the interior filling of the described second capillary tube cavity (8) of small part brazing filler metal material (10) according to the honeycomb body (1) of claim 5.
9, make the method for honeycomb body (1), this honeycomb body is had the sheetmetal (3 of structural form by many at least a portion, 4) form, be formed with the groove that many fluids therefrom flow through on the sheetmetal of band structure form, they are positioned in the sleeve (2), described sheetmetal (3,4) outward edge (6) is on the periphery of described honeycomb body (1), at least some described sheetmetals (3 here, 4) has straight tail end sections (5,5 '), at least some described straight tail end sections (5,5 ') overlap separately on the tail end sections of at least one adjacent straight, and the contact of the outward edge (6) of two adjacent straight tail end sections is on described sleeve (2), thereby sleeve (2) and two equitant straight tail end sections (5 at tubulose, 5 ') between form axially extended a plurality of first capillary tube cavitys (7), wherein filled brazing filler metal material (10) to the described first capillary tube cavity (7) of small part, described method is characterised in that the following step:
Brazing filler metal material (10) be the form with a film one of be attached at least in sleeve (2) and the described straight tail end sections (5,5 ') above,
Described sheetmetal (3,4) is placed in the described sleeve (2),
Both are heated to the brazing filler metal temperature of brazing filler metal material (10) together.
10,, it is characterized in that brazing filler metal material described here (10) is attached at least one end face (11) of described honeycomb body (1) according to the method for claim 9.
11,, it is characterized in that brazing filler metal material described here (10) is attached on the peripheral position (12) of described honeycomb body (1) according to the method for claim 9.
12,, it is characterized in that form that brazing filler metal material described here (10) coats (13) with belly is above described honeycomb body (1) according to the method for claim 9.
13, according to the method for claim 9, it is characterized in that brazing filler metal material described here (10) with the form of box-like lid (14) above described honeycomb body (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4215986.5 | 1992-05-14 | ||
| DE4215986A DE4215986A1 (en) | 1992-05-14 | 1992-05-14 | Automotive catalytic converter sheet metal layers - have smooth overlapping ends creating channels through which solder flows in mfg. then improving join to mantle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1080976A true CN1080976A (en) | 1994-01-19 |
| CN1035894C CN1035894C (en) | 1997-09-17 |
Family
ID=6458900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93106045A Expired - Fee Related CN1035894C (en) | 1992-05-14 | 1993-05-14 | Apparatus for catalytic exhaust gas cleaning |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100219389B1 (en) |
| CN (1) | CN1035894C (en) |
| DE (1) | DE4215986A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103429345A (en) * | 2011-03-10 | 2013-12-04 | 株式会社F.C.C. | Exhaust gas cleaning device |
| CN109694042A (en) * | 2017-10-20 | 2019-04-30 | 中国石化工程建设有限公司 | A kind of reforming hydrogen-preparation reactor and its method of reburner and reformation hydrogen production reaction |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5846495A (en) * | 1995-07-12 | 1998-12-08 | Engelhard Corporation | Structure for converter body |
| DE19928237A1 (en) * | 1999-06-21 | 2000-12-28 | Emitec Emissionstechnologie | Stress-free engine exhaust catalyst structure in flat and corrugated sheet metal, has arrangement of diametrically-opposite layers with no connections to casing |
| DE102005043196A1 (en) * | 2005-09-09 | 2007-03-15 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Method for producing an annular honeycomb body, and annular honeycomb body |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE45781T1 (en) * | 1986-05-12 | 1989-09-15 | Interatom | HONEYCOMB BODY, IN PARTICULAR CATALYST CARRIER|BODY, WITH METAL SHEET LAYERS INTERLOCKED IN OPPOSITIONS AND PROCESS FOR ITS MANUFACTURE. |
| ATE45780T1 (en) * | 1986-05-12 | 1989-09-15 | Interatom | METALLIC CATALYST CARRIER WITH INVOLVENT LAYERS. |
| DE4016276C1 (en) * | 1990-05-21 | 1991-06-20 | Behr Gmbh & Co |
-
1992
- 1992-05-14 DE DE4215986A patent/DE4215986A1/en not_active Ceased
-
1993
- 1993-05-13 KR KR1019930008216A patent/KR100219389B1/en not_active IP Right Cessation
- 1993-05-14 CN CN93106045A patent/CN1035894C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103429345A (en) * | 2011-03-10 | 2013-12-04 | 株式会社F.C.C. | Exhaust gas cleaning device |
| CN103429345B (en) * | 2011-03-10 | 2015-11-25 | 株式会社F.C.C. | Exhaust gas purification apparatus |
| CN109694042A (en) * | 2017-10-20 | 2019-04-30 | 中国石化工程建设有限公司 | A kind of reforming hydrogen-preparation reactor and its method of reburner and reformation hydrogen production reaction |
| CN109694042B (en) * | 2017-10-20 | 2021-03-05 | 中国石化工程建设有限公司 | Reforming hydrogen production reactor, reforming furnace thereof and reforming hydrogen production reaction method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4215986A1 (en) | 1993-11-18 |
| KR100219389B1 (en) | 1999-09-01 |
| KR940005313A (en) | 1994-03-21 |
| CN1035894C (en) | 1997-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |