CN201053842Y - Wing type heat-exchanger without sealing plate - Google Patents
Wing type heat-exchanger without sealing plate Download PDFInfo
- Publication number
- CN201053842Y CN201053842Y CNU2007200395942U CN200720039594U CN201053842Y CN 201053842 Y CN201053842 Y CN 201053842Y CN U2007200395942 U CNU2007200395942 U CN U2007200395942U CN 200720039594 U CN200720039594 U CN 200720039594U CN 201053842 Y CN201053842 Y CN 201053842Y
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- Prior art keywords
- heat exchange
- fin
- heat
- plate
- heat exchanger
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- 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.)
- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 title claims abstract description 22
- 239000012530 fluid Substances 0.000 claims description 19
- 238000004080 punching Methods 0.000 claims description 13
- 230000007704 transition Effects 0.000 abstract description 4
- 239000003507 refrigerant Substances 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 230000005496 eutectics Effects 0.000 description 6
- 229910000679 solder Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000011888 foil Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a wing type heat exchanger without seal plate, and the aim is to provide a heat exchanger with high heat exchanging efficiency, light weight and small volume. The utility model can satisfy medium with phase transition property to exchange heat, and is especially suitable to be used for the heat exchange of evaporation or condensation of two phases of refrigerant medium. The utility model has the technical proposal that the wing type heat exchanger without seal plate comprises an outer blocking plate, a tube nozzle, a plurality of heat exchanging plates which are provided with wing pieces and a sealing inclined plane at the peripheral part. The utility model is characterized in that the heat exchanging wing pieces on at least one heat exchanging medium circulating lay are arranged in transverse direction in a plurality of heat exchanging plates.
Description
Technical field
The utility model relates to a kind of field of heat exchangers, particularly a kind of strip-free plate-fin heat exchanger.
Background technology
In traditional strip-free plate-fin heat exchanger, the mode that fin is placed in heat exchange plate all is to cater to heat transferring medium with the disconnected cross section of the pitch of fin, forms a kind of modes of emplacement of fin in-line arrangement, makes heat transferring medium can flow through fin smoothly and carries out heat exchange.For example the patent No. 200610039927.1 and the patent No. 02828683.9 represented fin in its Figure of description is placed form.
In traditional strip-free plate-fin heat exchanger, this its heat exchange efficiency of in-line arrangement modes of emplacement of fin is lower, for the heat exchange of satisfying medium fluid requires the general method of adding heat exchange plate and fin that adopts, will cause the volume and weight of product bigger at last, cost is higher.
In traditional strip-free plate-fin heat exchanger, this in-line arrangement modes of emplacement of fin often can not satisfy the heat exchange requirement of some medium, especially can not satisfy the requirement that medium that this class of refrigerant can undergo phase transition carries out heat exchange in heat transfer process, make this class heat exchange form application in traditional strip-free plate-fin heat exchanger be subjected to limitation.
Summary of the invention
The purpose of this utility model is exactly at the above-mentioned problems in the prior art, and a kind of heat exchange efficiency height is provided, and volume and weight is less, and cost is low, can satisfy the strip-free plate-fin heat exchanger that medium with phase transition property carries out heat exchange.
The technical scheme that realizes the utility model purpose is: a kind of strip-free plate-fin heat exchanger, comprise outer baffle, ozzle, some heat exchange plate and periphery sealing inclined-planes that is provided with fin, it is characterized in that, in described some heat exchange plates that are provided with fin, has a heat exchange fin horizontally set on the heat transferring medium circulation aspect at least.
Heat exchange fin horizontally set on the described heat exchange plate is meant that the fluctuating bearing of trend of heat exchange fin is parallel with the general flow direction of heat transferring medium in the heat exchanger.
Pass through to change the placement direction of heat exchange fin in the utility model, traditional placement direction plane half-twist with heat exchange fin, make the disconnected cross section of pitch of heat exchange fin parallel with the general flow direction of heat transferring medium in the heat exchanger, form a kind of modes of emplacement of heat exchange fin horizontally-arranged, heat transferring medium is stopped by the lug boss branch of fin in heat exchange fin and disturbs, make heat transferring medium be compelled to the short distance lateral flow by the otch on the fin or after by the aperture on the fin, heat transferring medium forms the flow tendency of continuous S-shaped shape in the fin that each heat exchange aspect horizontally-arranged is placed, purpose is under the prerequisite that heat transferring medium fluid resistance allows, strengthen the heat exchange efficiency of various heat transferring mediums between fin and heat exchange plate, reduce the quantity of heat exchange plate and heat exchange fin with this, reduce the volume and weight and the cost of product, and satisfy the requirement that the medium with phase transition property carries out heat exchange with this.
Realize that the strip-free plate-fin heat exchanger after the utility model purpose technical scheme mainly can be used in evaporimeter and condenser and other the heat exchange environment, be particularly useful for that this medium with two-phase character of various refrigerants carries out heat exchange in the refrigeration industry.
In traditional strip-free plate-fin heat exchanger, existing form in the sealing of hole, many angles; Hole, the angle sealing means that has adopts the sheet material hydraulic way, makes periphery of angled hole be used for the plane that heat transferring medium seals mutually and is located at low degree and high plane respectively, and the height between low degree and the high plane equals the height of described heat exchange fin.Hole, the angle sealing means that has adopts on periphery of angled hole is used for plane that heat transferring medium seals mutually and is provided with the disjunctor sealing block, and the thickness of disjunctor sealing block equals the height of described heat exchange fin.Hole, the angle sealing means that has adopts on single periphery of angled hole is used for plane that heat transferring medium seals mutually and is provided with hole, angle sealing ring, and the thickness of sealing ring equals the height of described heat exchange fin.
In traditional strip-free plate-fin heat exchanger, major part is the mutual heat exchange of two media, but the form that three kinds of medium phase heat exchanging are arranged in a strip-free plate-fin heat exchanger is also arranged.
In traditional strip-free plate-fin heat exchanger, the employing heat transferring medium that has is to the heat exchange mode of angular flux, the heat exchange mode of the employing heat transferring medium same-edge current that has.
In traditional strip-free plate-fin heat exchanger, the heat exchange plate employing surface recombination that has has the sheet material of eutectic solder, and the material of heat exchange fin is general foil, does not have eutectic solder on the fin material.
In traditional strip-free plate-fin heat exchanger, the heat exchange plate that has adopts the solderless general sheet material in surface, but is compounded with eutectic solder on the foil of heat exchange fin.
In traditional strip-free plate-fin heat exchanger, the heat exchange plate that has adopts the solderless general sheet material in surface, the material surface of heat exchange fin also for not being compounded with the general foil of eutectic solder, still is added with the eutectic solder of paper tinsel shape between heat exchange plate and heat exchange fin.
In strip-free plate-fin heat exchanger, no matter which kind of sealing means the hole, angle adopts, no matter in a heat exchanger the mutual heat exchange of two or three medium, no matter adopt heat exchange mode to angular flux or same-edge current, and no matter which kind of addition manner eutectic solder adopts, all can in the heat exchange zone of heat exchange plate, the fin horizontally-arranged be placed, realize the technical solution of the utility model.
As further improvement of the utility model, described heat exchange fin includes the sawtooth type heat exchange fin and the straight punching type heat exchange fin of all size.
As further improvement of the utility model, in same heat exchanger, in pairing two the above fluid aspects of two or more heat transferring mediums, each fluid aspect corresponds respectively to a kind of heat exchange fin of specification or the heat exchange fin of different size.Promptly in same heat exchanger, the pairing different fluid aspect of various heat exchange medium can adopt the heat exchange fin of same size, also can adopt the heat exchange fin of different size.The specification of heat exchange fin generally is meant height, material thickness and the pitch etc. of fin, and at the heat exchange fin of sawtooth type, its specification also comprises parameters such as incision length.At the heat exchange fin of straight punching type, its specification also comprises parameters such as the aperture of punching and pitch-row.
As further improvement of the utility model, in same heat exchanger, in pairing two the above fluid aspects of two or more heat transferring mediums, each fluid aspect corresponds respectively to same type heat exchange fin or dissimilar heat exchange fins.Promptly in same heat exchanger, the pairing different fluid aspect of various heat exchange medium can adopt same type heat exchange fin, can also be the heat exchange fin of specification of the same race or different size simultaneously, also can adopt dissimilar heat exchange fins.
As further improvement of the utility model, in same heat exchanger, have at least on each piece heat exchange plate of a heat transferring medium circulation aspect, horizontally-arranged is placed and is had different size or dissimilar heat exchange fin combinations simultaneously.Promptly in same heat exchanger, in the pairing different fluid aspect of various heat exchange medium, at least on each piece heat exchange plate of a certain heat transferring medium of circulation, horizontally-arranged is placed and is had the sawtooth type heat exchange fin of different size and the heat exchange fin of straight punching type simultaneously.
As further improvement of the utility model, in same heat exchanger, have at least on each piece heat exchange plate of a heat transferring medium circulation aspect, horizontally-arranged and in-line arrangement are placed and are had different size or dissimilar heat exchange fin combinations simultaneously.Promptly in same heat exchanger, in the pairing different fluid aspect of various heat exchange medium, at least on each piece heat exchange plate of a certain heat transferring medium of circulation, horizontally-arranged is placed sawtooth type heat exchange fin and in-line arrangement with different size and is placed the straight punching type heat exchange fin with different size simultaneously, or in-line arrangement placement simultaneously has the sawtooth type heat exchange fin of different size and the straight punching type heat exchange fin that the horizontally-arranged placement has different size
As further improvement of the utility model, on heat exchange plate, between the heat exchange fin of hole, angle and all kinds, all size, distributing fin is arranged.The placement form of distributing fin can be put by the mobile requirement of heat transferring medium.
As further improvement of the utility model, the heat exchange fin in all heat exchange aspects on the heat exchange plate is horizontally set.Promptly in described heat exchanger, in the different fluid aspect that the various heat exchange medium is faced, the heat exchange fin of all kinds and all size all adopts the modes of emplacement of horizontally-arranged.
As further improvement of the utility model, on the heat exchange plate in all heat exchange aspects, in the various heat exchange medium, the heat exchange fin in the heat exchange aspect that also has a kind of heat transferring medium at least and circulated adopts the in-line arrangement setting.Promptly in described heat exchanger, in the different fluid aspect that the various heat exchange medium is faced, the heat exchange fin in the fluid aspect that has is taked the modes of emplacement of horizontally-arranged, and the heat exchange fin in the fluid aspect that has still adopts traditional in-line arrangement modes of emplacement.
Description of drawings
Fig. 1 is the utility model strip-free plate-fin heat exchanger profile schematic diagram
Fig. 2 is first kind of structural representation of heat exchange plate in the utility model
Fig. 3 is the C-C section schematic top plan view of Fig. 2
Fig. 4 is second kind of structural representation of heat exchange plate in the utility model
Fig. 5 is the third structural representation of heat exchange plate in the utility model
Fig. 6 is the 4th a kind of structural representation of heat exchange plate in the utility model
Fig. 7 is the 5th a kind of structural representation of heat exchange plate in the utility model
Fig. 8 is the 6th a kind of structural representation of heat exchange plate in the utility model
Fig. 9 is the 7th a kind of structural representation of heat exchange plate in the utility model
Figure 10 is the 8th a kind of structural representation of heat exchange plate in the utility model
Figure 11 is the 9th a kind of structural representation of heat exchange plate in the utility model
Figure 12 is the tenth a kind of structural representation of heat exchange plate in the utility model
Figure 13 is that signal of sawtooth type fin horizontally-arranged modes of emplacement and heat transferring medium flow to schematic diagram
Figure 14 is that straight punching type fin horizontally-arranged modes of emplacement and heat transferring medium flow to schematic diagram
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1, shown the strip-free plate-fin heat exchanger contour structures among Fig. 1, a kind of strip-free plate-fin heat exchanger comprises heat exchange plate 1, outer baffle 2 and the ozzle 3 with perimeter ramps sealing.
As shown in Figure 2, a kind of structural representation that has shown heat exchange plate 1 and fin among Fig. 2, comprise hole, angle 6, periphery sealing inclined-plane 5, the sawtooth type heat exchange fin 9 of horizontally set in the heat exchange zone on heat exchange plate 1, hole, two angles 6 is located at respectively on low degree 4 and the high plane 7, and the height between low degree 4 and the high plane 7 equals the height of heat exchange fin 9.Be provided with distributing fin 8 in the zone that the edge of low degree 4, high plane 7 and sawtooth type heat exchange fin 9 surrounds, the height of distributing fin 8 is identical with the height of fin 9.
As shown in Figure 3, Fig. 3 is the C-C section schematic top plan view of Fig. 2, has demonstrated the signal of the sealing inclined-plane 5 and the sawtooth type heat exchange fin 9 of heat exchange plate 1 periphery.
The another kind of structure that has shown heat exchange plate 1 and fin among Fig. 4, the difference of Fig. 4 and Fig. 2 are that in the heat exchange zone on heat exchange plate 1, sawtooth type heat exchange fin 10 is different with the specification of sawtooth type heat exchange fin 9, especially the pitch difference.Heat exchange plate 1 among Fig. 4 and Fig. 2 and the fin with different size be located at same heat exchanger in, two adjacent heat exchanging fluid aspects when representing that two kinds of heat transferring mediums carry out mutual heat exchange.Some heat exchange plates 1 and various fin will constitute the combination of each heat exchange aspect.
As shown in Figure 5, shown another structure of heat exchange plate 1 and fin among Fig. 5, the difference of Fig. 5 and Fig. 2 is, is horizontally arranged with the heat exchange fin 11 of straight punching type in the heat exchange zone on heat exchange plate 1.
As shown in Figure 6, another structure that has shown heat exchange plate 1 and hole, angle seal form among Fig. 6, the difference of Fig. 6 and Fig. 5 is, hole, two angles 6 peripheries are used for the plane that heat transferring medium seals mutually and are provided with disjunctor sealing block 12, and the thickness of disjunctor sealing block 12 is identical with the height of straight punching heat exchange fin 11.
As shown in Figure 7, another structure that has shown heat exchange plate 1 and fin among Fig. 7, the difference of Fig. 7 and Fig. 6 is, the type difference of heat exchange fin in the heat exchange zone on heat exchange plate 1, represented a kind of signal of sawtooth type heat exchange fin 9 in Fig. 7, the thickness of disjunctor sealing block 12 is identical with the height of sawtooth type heat exchange fin 9.
As shown in Figure 8, another structure that has shown heat exchange plate 1 and fin among Fig. 8, the difference of Fig. 8 and Fig. 7 is, sawtooth type heat exchange fin 10 is arranged in the heat exchange zone on heat exchange plate, and one of them hole, angle 6 has distributing fin 8, and the height of the thickness of disjunctor sealing block 12 and distributing fin 8 is identical with the height of sawtooth type heat exchange fin 10.
As shown in Figure 9, shown another structure of heat exchange plate 1 and hole, angle seal form among Fig. 9, the difference of Fig. 9 and Fig. 7 is that one of them hole, angle 6 is provided with sealing ring 13, and the thickness of sealing ring 13 equals the height of sawtooth type heat exchange fin 9.
As shown in figure 10, another structure that has shown heat exchange plate 1 and fin among Figure 10, the difference of Figure 10 and Fig. 4 is, horizontally-arranged is placed with the heat exchange fin 9 or 10 and the heat exchange fin 11 of the horizontally-arranged straight punching type of placing of sawtooth type simultaneously in the heat exchange zone of heat exchange plate 1.
As shown in figure 11, another structure that has shown heat exchange plate 1 and fin among Figure 11, the difference of Figure 11 and Figure 10 is, in the heat exchange zone of heat exchange plate 1 simultaneously horizontally-arranged be placed with the sawtooth type heat exchange fin 9 or 10 and in-line arrangement be placed with the heat exchange fin 9 or 10 of sawtooth type.
As shown in figure 12, another structure that has shown heat exchange plate 1 and fin among Figure 12, the difference of Figure 12 and Figure 10 is, in the heat exchange zone of heat exchange plate 1 simultaneously horizontally-arranged be placed with the sawtooth type heat exchange fin 9 or 10 and in-line arrangement be placed with the heat exchange fin 11 of straight punching type.
As shown in figure 13, Figure 12 is that sawtooth type heat exchange fin 9 or 10 horizontally-arrangeds are placed signal and heat transferring medium flows to schematic diagram, and heat exchange fin 9 or 10 fluctuating bearing of trend 15 are parallel with the general flow direction 14 of heat transferring medium in the heat exchanger.
As shown in figure 14, Figure 13 is that straight punching type heat exchange fin 11 horizontally-arrangeds are placed signal and heat transferring medium flows to schematic diagram, and the fluctuating bearing of trend 15 of heat exchange fin 11 is parallel with the general flow direction 14 of heat transferring medium in the heat exchanger.
Claims (10)
1. strip-free plate-fin heat exchanger, comprise outer baffle, ozzle, some heat exchange plate and periphery sealing inclined-planes that is provided with fin, it is characterized in that, in described some heat exchange plates that are provided with fin, has the heat exchange fin that has horizontally set on the heat exchange plate of a heat transferring medium circulation aspect at least.
2. strip-free plate-fin heat exchanger according to claim 1 is characterized in that, described heat exchange fin comprises sawtooth type heat exchange fin.
3. strip-free plate-fin heat exchanger according to claim 1 and 2 is characterized in that, described heat exchange fin comprises straight punching type heat exchange fin.
4. strip-free plate-fin heat exchanger according to claim 1 is characterized in that, in pairing two the above fluid aspects of two or more heat transferring mediums, each fluid aspect corresponds respectively to one type heat exchange fin.
5. strip-free plate-fin heat exchanger according to claim 1 is characterized in that, in pairing two the above fluid aspects of two or more heat transferring mediums, each fluid aspect corresponds respectively to dissimilar heat exchange fins.
6. strip-free plate-fin heat exchanger according to claim 1 is characterized in that, described heat exchange plate is provided with the heat exchange fin of the horizontally-arranged of two or more types at least one heat transferring medium circulation aspect.
7. strip-free plate-fin heat exchanger according to claim 1 is characterized in that, described heat exchange plate is provided with the heat exchange fin of horizontally-arranged setting and in-line arrangement setting at least one heat transferring medium circulation aspect.
8. strip-free plate-fin heat exchanger according to claim 1 is characterized in that, has distributing fin on the heat exchange plate of described fin horizontally set.
9. strip-free plate-fin heat exchanger according to claim 1 is characterized in that, the heat exchange fin in all heat exchange aspects on the heat exchange plate is horizontally set.
10. strip-free plate-fin heat exchanger according to claim 1 is characterized in that, on the heat exchange plate in two above heat exchange aspects, the interior heat exchange fin of the heat exchange aspect that has at least a kind of heat transferring medium to circulate adopts the in-line arrangement setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200395942U CN201053842Y (en) | 2007-06-12 | 2007-06-12 | Wing type heat-exchanger without sealing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200395942U CN201053842Y (en) | 2007-06-12 | 2007-06-12 | Wing type heat-exchanger without sealing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053842Y true CN201053842Y (en) | 2008-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200395942U Expired - Lifetime CN201053842Y (en) | 2007-06-12 | 2007-06-12 | Wing type heat-exchanger without sealing plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053842Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100516758C (en) * | 2007-06-12 | 2009-07-22 | 缪志先 | Strip-free plate-fin heat exchanger |
| CN104296586A (en) * | 2013-07-15 | 2015-01-21 | 杭州三花研究院有限公司 | Heat exchanger sheet, heat exchanger heat exchange unit and heat exchanger |
| CN104344762A (en) * | 2013-07-25 | 2015-02-11 | 杭州三花研究院有限公司 | Heat exchanger and sheet thereof |
| CN104515422A (en) * | 2013-09-27 | 2015-04-15 | 杭州三花研究院有限公司 | Fin and heat exchanger with fin |
-
2007
- 2007-06-12 CN CNU2007200395942U patent/CN201053842Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100516758C (en) * | 2007-06-12 | 2009-07-22 | 缪志先 | Strip-free plate-fin heat exchanger |
| CN104296586A (en) * | 2013-07-15 | 2015-01-21 | 杭州三花研究院有限公司 | Heat exchanger sheet, heat exchanger heat exchange unit and heat exchanger |
| CN104344762A (en) * | 2013-07-25 | 2015-02-11 | 杭州三花研究院有限公司 | Heat exchanger and sheet thereof |
| CN104344762B (en) * | 2013-07-25 | 2017-10-31 | 浙江三花汽车零部件有限公司 | The plate and its heat exchanger of heat exchanger |
| CN104515422A (en) * | 2013-09-27 | 2015-04-15 | 杭州三花研究院有限公司 | Fin and heat exchanger with fin |
| CN104515422B (en) * | 2013-09-27 | 2017-10-31 | 浙江三花汽车零部件有限公司 | Fin and the heat exchanger with the fin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hongsheng Heat Exchanger Manufacturing Co., Ltd. Assignor: Jiu Zhixian|Ling Xiang|Niu Faqing Contract fulfillment period: 2008.9.27 to 2017.6.12 Contract record no.: 2008320000907 Denomination of utility model: Strip-free plate-fin heat exchanger Granted publication date: 20080430 License type: Exclusive license Record date: 20081014 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.9.27 TO 2017.6.12; CHANGE OF CONTRACT Name of requester: WUXI HONGSHENG HEAT EXCHANGER MANUFACTURING CO.,LT Effective date: 20081014 |
|
| ASS | Succession or assignment of patent right |
Owner name: HONGSHENG HEAT EXCHANGER MANUFACTURING CO., LTD. Free format text: FORMER OWNER: MIU ZHIXIAN Effective date: 20111108 Free format text: FORMER OWNER: LING XIANG NIU FAQING |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100027 CHAOYANG, BEIJING TO: 214091 WUXI, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20111108 Address after: 214091, No. 86, Causeway Road, Mashan Industrial Park, Binhu District, Jiangsu, Wuxi Patentee after: Hongsheng Heat Exchanger Manufacturing Co., Ltd. Address before: 100027 Beijing City, Chaoyang District Xinyuan Ricci on the third floor two unit 15 Co-patentee before: Ling Xiang Patentee before: Jiu Zhixian Co-patentee before: Niu Faqing |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20080430 Effective date of abandoning: 20130122 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20080430 Effective date of abandoning: 20130122 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |