CA2741095A1 - A heat exchanger for an annealing furnace for exchanging heat between two fluids - Google Patents
A heat exchanger for an annealing furnace for exchanging heat between two fluids Download PDFInfo
- Publication number
- CA2741095A1 CA2741095A1 CA2741095A CA2741095A CA2741095A1 CA 2741095 A1 CA2741095 A1 CA 2741095A1 CA 2741095 A CA2741095 A CA 2741095A CA 2741095 A CA2741095 A CA 2741095A CA 2741095 A1 CA2741095 A1 CA 2741095A1
- Authority
- CA
- Canada
- Prior art keywords
- heat exchanger
- profile
- fluids
- heat
- profile tube
- 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.)
- Abandoned
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
- F28F1/16—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
- F27B5/14—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
- F28D7/12—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically the surrounding tube being closed at one end, e.g. return type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Geometry (AREA)
- Environmental & Geological Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention relates to a heat exchanger (1) for an annealing furnace for ex-changing heat between two fluids, comprising a tubular profile which comprises heat exchanger fins on its outside jacket and which is associated on at least one face side (3) with a connecting flange (4) with at least one flow opening (8) for one of the two fluids, especially a hot gas. In order to provide advantageous constructional conditions it is proposed that the profile is a profile tube made of a folded sheet whose heat exchanger fins (7) aligned in the longitudinal direc-tion of the profile are formed by the corrugated profile, especially the corru-gated flanks, of the folded sheet.
Description
A heat exchanger for an an eating furnace for exchanging heat between two fluids 1. Field of the invention The invention relates to a heat exchanger for an annealing furnace for ex-changing heat between two fluids, comprising a tubular profile which comprises heat exchanger fins on its outside jacket and which is associated on at least one face side with a connecting flange with at least one flow opening for one of the two fluids, especially a hot gas.
2. Description of the prior art In the heat treatment of metallic goods to be annealed, the heat treatment and the optionally necessary subsequent cooling occurs under a protective gas, mostly nitrogen or hydrogen, or a mixture of these gases. In order to ensure a proper protective gas atmosphere which is free from impurities and causes oxi-dation, the supply and discharge of heat usually occurred previously through high-temperature-resistant heat exchangers made of cast materials or ceramic.
Hot gases, especially fuel gases or the like, flow through these heat exchang-ers or recuperators, with the hot gas passing heat to the heat exchanger and the same passes the heat through its outer cooling fins to an annealing cham-ber or the like. In the known heat exchangers which are made of steel tubes this occurs in such a way that these tubes comprise cooling fins on their out-side jacket in order to enlarge the surface area. It is disadvantageous in the known heat exchangers however that they are made of massive heat-resistant material such as cast or ceramic materials, which not only increases the heat-ing time of the heat exchanger as a result of this large thermal mass, but also prevents the application of especially strong dynamic temperature fluctuations as a result of the large heat-storage capacity and reduces the effectiveness of the plant.
Based on the state of the art of the kind mentioned above, the invention is based on the object of providing a heat exchanger for an annealing furnace which is suitable for reproducing highly dynamic temperature fluctuations, as can be required especially in the heat treatment of materials to be annealed.
SUMMARY OF THE INVENTION
This object is achieved by the invention in such a way that the profile is a profile tube made of a folded sheet whose heat exchanger fins aligned in the longitu-dinal direction of the profile are formed by the corrugated profiles, especially the corrugated flanks, of the folded sheet.
The invention provides an especially simple and cost-effective possibility for producing a heat exchanger which is suitable for an annealing furnace which as a result of its low inherent heat storage capacity can realize especially dynamic temperature fluctuations in the annealing furnace in combination with an espe-cially low material input and thus low weight. Since the profile is a profile tube made of folded sheet, not only the outside jacket surface of the heat exchanger increases in the heat exchanger in accordance with the invention, as is the case in the state of the art, but also the inside jacket surface of the heat ex-changer, thus better utilizing the energy contained in the hot gas on the one hand and enabling the realization of higher thermal energy flows with heat ex-changers that are of the same size in respect of the state of the art on the other hand. If the same energy quantities need to be transported in relation to the state of the art, the invention offers the advantage that smaller and lighter heat exchangers can now be used. As a result of the lower wall thickness of the heat exchanger in accordance with the invention, the thermal conductivity of the heat exchanger material can virtually be ignored and the efficiency of the heat exchanger increases by a relevant factor.
In order to enable the better utilization of the energy contained in the hot gas and to improve the heat transfer between the fluids and the heat exchanger, turbulators could be associated with the heat exchanger fins on the inside jack-et side of the profile tube and/or on the outside jacket side of the profile tube, which turbulators lead to an improved heat transfer by turbulences applied to the fluid flow.
In the simplest of cases, the profile tube can be provided on both face sides with a connecting flange with at least one flow opening for one of the two pro-files and a heat carrier fluid flows in the axial direction through the heat ex-changer during operation.
As an alternative to this, the profile tube can be provided on one of the two face sides with a connecting flange with at least one flow opening for one of the two fluids, with the other of the two faces sides being sealed. Especially advanta-geous constructional conditions are obtained when a fluid tube is provided which is coaxial to the profile axis and penetrates the connecting flange and protrudes in the direction of the sealed face side. The heat carrier fluid can be introduced into or removed from the heat exchanger through said fluid tube, which fluid can be removed from the heat exchanger or introduced into the same through a coaxial opening in the connecting flange. Annealing furnaces with heat exchangers that require little space can thus be realized.
The flow opening of a heat exchanger in accordance with the invention is pref-erably associated with a flue of a burner which is optionally operated with a por-tion of the preheated heat exchanger exhaust air, which is a portion of the hot gases exiting from the heat exchanger, which is virtually for subsequent com-bustion.
Hot gases, especially fuel gases or the like, flow through these heat exchang-ers or recuperators, with the hot gas passing heat to the heat exchanger and the same passes the heat through its outer cooling fins to an annealing cham-ber or the like. In the known heat exchangers which are made of steel tubes this occurs in such a way that these tubes comprise cooling fins on their out-side jacket in order to enlarge the surface area. It is disadvantageous in the known heat exchangers however that they are made of massive heat-resistant material such as cast or ceramic materials, which not only increases the heat-ing time of the heat exchanger as a result of this large thermal mass, but also prevents the application of especially strong dynamic temperature fluctuations as a result of the large heat-storage capacity and reduces the effectiveness of the plant.
Based on the state of the art of the kind mentioned above, the invention is based on the object of providing a heat exchanger for an annealing furnace which is suitable for reproducing highly dynamic temperature fluctuations, as can be required especially in the heat treatment of materials to be annealed.
SUMMARY OF THE INVENTION
This object is achieved by the invention in such a way that the profile is a profile tube made of a folded sheet whose heat exchanger fins aligned in the longitu-dinal direction of the profile are formed by the corrugated profiles, especially the corrugated flanks, of the folded sheet.
The invention provides an especially simple and cost-effective possibility for producing a heat exchanger which is suitable for an annealing furnace which as a result of its low inherent heat storage capacity can realize especially dynamic temperature fluctuations in the annealing furnace in combination with an espe-cially low material input and thus low weight. Since the profile is a profile tube made of folded sheet, not only the outside jacket surface of the heat exchanger increases in the heat exchanger in accordance with the invention, as is the case in the state of the art, but also the inside jacket surface of the heat ex-changer, thus better utilizing the energy contained in the hot gas on the one hand and enabling the realization of higher thermal energy flows with heat ex-changers that are of the same size in respect of the state of the art on the other hand. If the same energy quantities need to be transported in relation to the state of the art, the invention offers the advantage that smaller and lighter heat exchangers can now be used. As a result of the lower wall thickness of the heat exchanger in accordance with the invention, the thermal conductivity of the heat exchanger material can virtually be ignored and the efficiency of the heat exchanger increases by a relevant factor.
In order to enable the better utilization of the energy contained in the hot gas and to improve the heat transfer between the fluids and the heat exchanger, turbulators could be associated with the heat exchanger fins on the inside jack-et side of the profile tube and/or on the outside jacket side of the profile tube, which turbulators lead to an improved heat transfer by turbulences applied to the fluid flow.
In the simplest of cases, the profile tube can be provided on both face sides with a connecting flange with at least one flow opening for one of the two pro-files and a heat carrier fluid flows in the axial direction through the heat ex-changer during operation.
As an alternative to this, the profile tube can be provided on one of the two face sides with a connecting flange with at least one flow opening for one of the two fluids, with the other of the two faces sides being sealed. Especially advanta-geous constructional conditions are obtained when a fluid tube is provided which is coaxial to the profile axis and penetrates the connecting flange and protrudes in the direction of the sealed face side. The heat carrier fluid can be introduced into or removed from the heat exchanger through said fluid tube, which fluid can be removed from the heat exchanger or introduced into the same through a coaxial opening in the connecting flange. Annealing furnaces with heat exchangers that require little space can thus be realized.
The flow opening of a heat exchanger in accordance with the invention is pref-erably associated with a flue of a burner which is optionally operated with a por-tion of the preheated heat exchanger exhaust air, which is a portion of the hot gases exiting from the heat exchanger, which is virtually for subsequent com-bustion.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is schematically shown in the drawings by reference to an em-bodiment, wherein:
Fig. 1 shows a heat exchanger in accordance with the invention in a longitudi-nal sectional view;
Fig. 2 shows the heat exchanger of Fig. 1 in a sectional view along line II-II
of Fig. 1;
Fig. 3 shows a constructional variant of the heat exchanger of Fig. 1 in a longi-tudinal partly sectional view;
Fig. 4 shows the heat exchanger of Fig. 1 in an enlarged oblique view.
DESCRIPTION OF THE PREFERRED EMBODIMENT
A heat exchanger 1 for an annealing furnace for the exchange of heat between two fluids, a hot gas 2 flowing through the interior of the heat exchanger and an interior of an annealing furnace to be heated by the heat exchanger comprises on at least one face side 3 a connecting flange 4 with at least one flow opening 8 for one of the two fluids. A flue of a burner can optionally be inserted in said flow opening 8. The heat exchanger 1 is formed by a profile which in accor-dance with the invention is a profile tube 5 made of folded sheet whose heat exchanger fins 7, which are aligned in the longitudinal direction of the profile tube, parallel to the profile tube axis 6, are formed by the corrugated profile, especially the corrugated flanks, of the folded sheet.
In accordance with the embodiment according to Figs. 1 and 2, the profile tube is associated on both face sides with a connecting flange 4 with at least one flow opening 8 each for one of the two fluids which flow through the profile tube in the direction of the profile tube axis 9 in operation.
According to the embodiment of Fig. 3, the profile tube 5 is associated on one of the face sides with a connecting flange 4 with a flow opening 8 for one of the two fluids and the other of the two face sides is sealed with a sealing plate 10.
Moreover, a fluid tube 11 is provided which is coaxial to the profile tube axis 9, which penetrates the connecting flange 4 and protrudes in the direction of the sealed face side, towards the sealing plate 10. The hot gas is introduced into the heat exchanger 1 via the fluid tube 11 and leaves the same through a coax-ial annular gap between the fluid tube 11 and the connecting flange 4 through the flow opening 8.
The heat exchanger 1 is produced by folding sheets with welded end pieces, with the folding occurring without any extension on the longitudinal sides of the profile surfaces.
The invention is schematically shown in the drawings by reference to an em-bodiment, wherein:
Fig. 1 shows a heat exchanger in accordance with the invention in a longitudi-nal sectional view;
Fig. 2 shows the heat exchanger of Fig. 1 in a sectional view along line II-II
of Fig. 1;
Fig. 3 shows a constructional variant of the heat exchanger of Fig. 1 in a longi-tudinal partly sectional view;
Fig. 4 shows the heat exchanger of Fig. 1 in an enlarged oblique view.
DESCRIPTION OF THE PREFERRED EMBODIMENT
A heat exchanger 1 for an annealing furnace for the exchange of heat between two fluids, a hot gas 2 flowing through the interior of the heat exchanger and an interior of an annealing furnace to be heated by the heat exchanger comprises on at least one face side 3 a connecting flange 4 with at least one flow opening 8 for one of the two fluids. A flue of a burner can optionally be inserted in said flow opening 8. The heat exchanger 1 is formed by a profile which in accor-dance with the invention is a profile tube 5 made of folded sheet whose heat exchanger fins 7, which are aligned in the longitudinal direction of the profile tube, parallel to the profile tube axis 6, are formed by the corrugated profile, especially the corrugated flanks, of the folded sheet.
In accordance with the embodiment according to Figs. 1 and 2, the profile tube is associated on both face sides with a connecting flange 4 with at least one flow opening 8 each for one of the two fluids which flow through the profile tube in the direction of the profile tube axis 9 in operation.
According to the embodiment of Fig. 3, the profile tube 5 is associated on one of the face sides with a connecting flange 4 with a flow opening 8 for one of the two fluids and the other of the two face sides is sealed with a sealing plate 10.
Moreover, a fluid tube 11 is provided which is coaxial to the profile tube axis 9, which penetrates the connecting flange 4 and protrudes in the direction of the sealed face side, towards the sealing plate 10. The hot gas is introduced into the heat exchanger 1 via the fluid tube 11 and leaves the same through a coax-ial annular gap between the fluid tube 11 and the connecting flange 4 through the flow opening 8.
The heat exchanger 1 is produced by folding sheets with welded end pieces, with the folding occurring without any extension on the longitudinal sides of the profile surfaces.
Claims (5)
1. A heat exchanger for an annealing furnace for exchanging heat (1) be-tween two fluids, comprising a tubular profile which comprises heat exchanger fins on its outside jacket and which is associated on at least one face side (3) with a connecting flange (4) with at least one flow opening (8) for one of the two fluids, especially a hot gas, characterized in that the profile is a profile tube (5) made of a folded sheet whose heat exchanger fins (7) aligned in the longitudi-nal direction of the profile are formed by the corrugated profile of the folded sheet.
2. A heat exchanger according to claim 1, characterized in that turbulators are associated with the heat exchanger fins (7) on the inside of the profile tube jacket and/or the outside of the profile tube jacket.
3. A heat exchanger according to claim 1 or 2, characterized in that a con-necting flange (4) with at least one flow opening (8) for one of the two fluids is associated with the profile tube (5) at both face sides.
4. A heat exchanger according to claim 1or 2, characterized in that a con-necting flange (4) with at least one flow opening (8) for one of the two fluids is associated with the profile tube (5) at one of the two face sides and the other of the two face sides is sealed.
5. A heat exchanger according to claim 4, characterized in that a fluid tube (11) is provided which is coaxial to the profile tube axis (9) and which pene-trates the connecting flange (4) and protrudes in the direction of the sealed face side.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA1641/2008 | 2008-10-20 | ||
| AT0164108A AT507422B1 (en) | 2008-10-20 | 2008-10-20 | HEAT EXCHANGER FOR A HEAT EXCHANGER FOR HEAT EXCHANGE BETWEEN TWO FLUIDS |
| PCT/AT2009/000391 WO2010045664A2 (en) | 2008-10-20 | 2009-10-09 | Heat exchanger for an annealing furnace for exchanging heat between two fluids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2741095A1 true CA2741095A1 (en) | 2010-04-29 |
Family
ID=42119728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2741095A Abandoned CA2741095A1 (en) | 2008-10-20 | 2009-10-09 | A heat exchanger for an annealing furnace for exchanging heat between two fluids |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US20110308780A1 (en) |
| EP (1) | EP2342522B1 (en) |
| JP (1) | JP2012506025A (en) |
| KR (1) | KR20110076949A (en) |
| CN (1) | CN102187173B (en) |
| AT (1) | AT507422B1 (en) |
| BR (1) | BRPI0919799A2 (en) |
| CA (1) | CA2741095A1 (en) |
| MX (1) | MX2011004231A (en) |
| RU (1) | RU2493526C2 (en) |
| TW (1) | TW201027019A (en) |
| WO (1) | WO2010045664A2 (en) |
| ZA (1) | ZA201102683B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2565419A1 (en) * | 2011-08-30 | 2013-03-06 | Siemens Aktiengesellschaft | Flow machine cooling |
| US11022340B2 (en) | 2016-08-01 | 2021-06-01 | Johnson Controls Technology Company | Enhanced heat transfer surfaces for heat exchangers |
| RU2700805C1 (en) * | 2019-05-13 | 2019-09-23 | Александр Игоревич Павлов | Method of longitudinal finning of heat exchanger working surface |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1912785A (en) * | 1931-04-03 | 1933-06-06 | Roy I Mills | Absorption fin |
| DE839806C (en) * | 1949-08-02 | 1952-05-26 | Otto H Dr-Ing E H Hartmann | Star-shaped folded tube as an insert tube for heat exchangers |
| US2682157A (en) * | 1950-11-03 | 1954-06-29 | Heat X Changer Co Inc | Gas separation |
| US2692763A (en) * | 1952-03-08 | 1954-10-26 | Air Preheater | Supporting spacer for annular corrugated fins |
| JPS501093B1 (en) * | 1970-05-23 | 1975-01-14 | ||
| JPS5138462B2 (en) * | 1972-06-20 | 1976-10-21 | ||
| US4059882A (en) * | 1976-05-24 | 1977-11-29 | United Aircraft Products, Inc. | Method of making an annular tube-fin heat exchanger |
| GB1579276A (en) * | 1976-08-23 | 1980-11-19 | Borg Warner | Heat exchanger for cooling exhaust gas |
| US4096616A (en) * | 1976-10-28 | 1978-06-27 | General Electric Company | Method of manufacturing a concentric tube heat exchanger |
| JPS5616618A (en) * | 1979-07-20 | 1981-02-17 | Sumitomo Metal Ind Ltd | Continuous annealing furnace |
| JPH0512277Y2 (en) * | 1986-04-22 | 1993-03-29 | ||
| RU2013747C1 (en) * | 1991-04-18 | 1994-05-30 | Ерченко Герман Николаевич | Vertical tube of condenser |
| JP3131668B2 (en) * | 1992-12-01 | 2001-02-05 | 昭和アルミニウム株式会社 | Oil cooler |
| US5542467A (en) * | 1993-07-06 | 1996-08-06 | Societe E'etudes Et De Constructions Aero-Navales | Safety annular heat exchanger for incompatible fluids |
| CN2313194Y (en) * | 1997-10-20 | 1999-04-07 | 鞍钢新轧钢股份有限公司 | Case-pipe of air heat-exchanging device of heating cover |
| JP3927700B2 (en) * | 1998-09-07 | 2007-06-13 | マルヤス工業株式会社 | Manufacturing method of heat exchanger |
| JP2001012872A (en) * | 1999-06-25 | 2001-01-19 | Toyo Radiator Co Ltd | Evaporator |
| CN2432539Y (en) * | 2000-07-25 | 2001-05-30 | 宝山钢铁股份有限公司 | Heat pipe heat exchanger for ball type annealing furnace |
| DE10349887B4 (en) * | 2003-10-25 | 2013-03-07 | Benteler Automobiltechnik Gmbh | Radiator for an exhaust gas recirculation system in an internal combustion engine |
| US7191824B2 (en) * | 2003-11-21 | 2007-03-20 | Dana Canada Corporation | Tubular charge air cooler |
-
2008
- 2008-10-20 AT AT0164108A patent/AT507422B1/en not_active IP Right Cessation
-
2009
- 2009-10-09 WO PCT/AT2009/000391 patent/WO2010045664A2/en active Application Filing
- 2009-10-09 EP EP09740624.3A patent/EP2342522B1/en not_active Not-in-force
- 2009-10-09 KR KR1020117008959A patent/KR20110076949A/en not_active Application Discontinuation
- 2009-10-09 CA CA2741095A patent/CA2741095A1/en not_active Abandoned
- 2009-10-09 MX MX2011004231A patent/MX2011004231A/en not_active Application Discontinuation
- 2009-10-09 CN CN2009801417902A patent/CN102187173B/en not_active Expired - Fee Related
- 2009-10-09 RU RU2011120166/06A patent/RU2493526C2/en not_active IP Right Cessation
- 2009-10-09 JP JP2011532463A patent/JP2012506025A/en active Pending
- 2009-10-09 US US12/998,427 patent/US20110308780A1/en not_active Abandoned
- 2009-10-16 TW TW098135033A patent/TW201027019A/en unknown
- 2009-10-20 BR BRPI0919799A patent/BRPI0919799A2/en not_active IP Right Cessation
-
2011
- 2011-04-11 ZA ZA2011/02683A patent/ZA201102683B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010045664A2 (en) | 2010-04-29 |
| ZA201102683B (en) | 2012-06-27 |
| TW201027019A (en) | 2010-07-16 |
| EP2342522B1 (en) | 2013-11-20 |
| US20110308780A1 (en) | 2011-12-22 |
| JP2012506025A (en) | 2012-03-08 |
| MX2011004231A (en) | 2011-06-17 |
| KR20110076949A (en) | 2011-07-06 |
| RU2493526C2 (en) | 2013-09-20 |
| RU2011120166A (en) | 2012-11-27 |
| EP2342522A2 (en) | 2011-07-13 |
| CN102187173B (en) | 2013-04-03 |
| BRPI0919799A2 (en) | 2016-05-03 |
| CN102187173A (en) | 2011-09-14 |
| AT507422B1 (en) | 2010-05-15 |
| WO2010045664A3 (en) | 2011-04-28 |
| AT507422A4 (en) | 2010-05-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |
Effective date: 20141009 |