CN1829893A - Flat tube for heat exchanger - Google Patents
Flat tube for heat exchanger Download PDFInfo
- Publication number
- CN1829893A CN1829893A CN200480021487.6A CN200480021487A CN1829893A CN 1829893 A CN1829893 A CN 1829893A CN 200480021487 A CN200480021487 A CN 200480021487A CN 1829893 A CN1829893 A CN 1829893A
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- China
- Prior art keywords
- flat tube
- slit
- heat exchanger
- metal plate
- folded part
- Prior art date
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- Granted
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- 238000005219 brazing Methods 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims description 44
- 239000002184 metal Substances 0.000 claims description 44
- 238000005192 partition Methods 0.000 abstract 2
- 238000003466 welding Methods 0.000 description 19
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000010405 anode material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Images
Classifications
-
- 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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
- F28D1/0391—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits a single plate being bent to form one or more conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/04—Fastening; Joining by brazing
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49391—Tube making or reforming
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Abstract
A flat tube that has a lateral cross-section with a substantially letter B shape etc., that has one or more partitions in its inside, and on the outer periphery of which a brazing material is coated. Slits (6) are provided in a top portion (5) of a folded portion (4) constituting each partition. The slits (6) through which the brazing material enters are provided as a large number in order to provide conditions satisfying both improved brazeability and improved accuracy in processing of the flat tube. The length (c) of a slit (6) is from 2 mm to 15 mm, the distance (e) between ends of adjacent slits (6) is from 3 mm to 10 mm, and e/c is not less than 0.6.
Description
Technical field
The present invention relates to a kind of heat exchanger that is built-in with one or more dividing plates aluminum flat tube, its cross section forms approximate B shape or similar shape, relate in particular to a kind of heat exchanger aluminum flat tube, it is by forming in the enterprising line bend of width at the strip metal plate that its outer surface side scribbles brazing metal, and the top at dividing plate is formed with slit, be used to make the brazing metal of outer surface side to enter inner surface side, with welding diaphragm and inner wall surface by slit.
Background technology
Well-known a kind of flat tube with approximate B shape or analogous shape cross section, wherein slit is formed discontinuously on the top of the dividing plate in heart zone therein, so that the brazing metal of the outer surface side of pipe the time can enter inner surface side by slit in welding, thereby by welding the means integrally top of stationary barrier and the opposite inner face of pipe; Thus, improve renitent performance (for example, postponing Fig. 8 and 9 in open 2002-228369 number) referring to Japanese patent application.
When circulation in aluminum flat tube during corrosive fluid, cover sacrificial anode material in the inner surface side of the core metal of flat tube, and the outer surface side covers brazing metal.In flat tube with approximate B tee section, when forming the dividing plate of central area in the mode that is bent upwards, the top and near the pipe at top is inboard must welding.In this case, the brazing metal of tube outer surface side can enter inner surface side by the slit that is formed at the top.
Yet,, find the following fact by the experiment that the inventor carries out; That is, in adopting the flat tube of slit, owing to the length of each slit, the gap between the slit etc. make welding reliability change a lot, and the processing characteristics of B tee section pipe and precision thereof so be subjected to very big influence.
Correspondingly, the objective of the invention is: with the definite optimum condition that forms slit of experimental technique, this slit is formed in the dividing plate top of the flat tube that has one or more dividing plates and form the B tee section.
Summary of the invention
Disclosed an aspect of of the present present invention is a kind of flat tube for heat exchanger in technical scheme 1, it comprises: bend to relative pair of planar part 1 parallel to each other and the pair of curved part 2 that is connected to planar section 1 two ends by the strip metal plate on its width, become flat tubular thereby this is tubular, wherein scribble brazing metal 3 on the strip metal plate surface, and with the bending of strip metal plate, so that brazing metal 3 is positioned at the outer surface side of tubular; Center on the width of a planar section 1, folded part 4 is folded into relative planar side, and the top 5 of folded part 4 abuts against on the inner surface of apparent surface's side, with at the inner dividing plate that forms of pipe; Be interrupted to be formed for making a lot of slits 6 of brazing metal by entering here on vertically at top 5, wherein, the length of slit 6 " c " is 2mm to 15mm separated from one anotherly; Distance between the edge of adjacent slots 6 " e " is 3mm to 10mm; And " e/c " is more than or equal to 0.6.
Disclosed another aspect of the present invention is in technical scheme 2, and according to the flat tube for heat exchanger of technical scheme 1, wherein the thickness of strip metal plate is 0.15mm to 0.6mm.
Flat tube for heat exchanger of the present invention has aforesaid structure, and has following effect.
The top 5 that flat tube for heat exchanger of the present invention is configured to folded part 4 abuts against on the inner surface of opposite side, thereby form the dividing plate in the pipe, described folded part 4 is formed on the core on the width of planar section 1, wherein in top 5, be interrupted ground and form a lot of slits 6 separated from one another, and the length of slit 6 is 2mm to 15mm; Distance between the edge of adjacent slots 6 is 3mm to 10mm; And " e/c " is more than or equal to 0.6.Thereby, the flat tube for heat exchanger of high reliability is provided, it has gratifying weld strength between the inner surface of top 5 and opposite side, and it provides high compressive property, and does not deform when flat tube forms and twist.
That is, because the length of slit 6 is defined as more than or equal to 2mm, during welding, brazing metal enters into inner surface side reliably through slit 6, thereby soldering reliability is guaranteed.
Because the length of slit 6 is defined as smaller or equal to 15mm, so, can keep well by with strip metal plate crooked machining accuracy when forming folded part 4 on its width; As a result, the reliability of flat tube for heat exchanger can guarantee.
In addition,, between the edge of slit 6, can not produce the crack, the flat tube of high reliability can be provided because the distance between the edge of adjacent slots 6 is defined as more than or equal to 3mm.
In addition,, during welding, can form the outline line of the pad on the top 5 satisfactorily, the flat tube for heat exchanger with high strength and compressive property can be provided because the distance between the edge of adjacent slots 6 is defined as smaller or equal to 10mm.
Description of drawings
Fig. 1 is the sectional view of flat tube for heat exchanger of the present invention, has shown the relevant portion of first embodiment.
Fig. 2 is the sectional view of the user mode of welding back flat tube.
Fig. 3 is the schematic isometric of the folded part 4 of flat tube.
Fig. 4 is the schematic diagram of the strip metal plate before the folded part 4 that forms flat tube.
Fig. 5 is the sectional view of the relevant portion of the flat tube for heat exchanger in the second embodiment of the invention.
Fig. 6 is the sectional view of the relevant portion of the flat tube for heat exchanger in the third embodiment of the invention.
Fig. 7 is the stereogram of user mode of the relevant portion of the flat tube in the third embodiment of the invention.
The specific embodiment
The embodiment of flat tube of the present invention is described with reference to the accompanying drawings.
Fig. 1 is the sectional view of the relevant portion of flat tube of the present invention; Fig. 2 is the sectional view of the user mode of welding back relevant portion; Fig. 3 is the schematic isometric of the folded part 4 shown in Fig. 1.
Flat tube for heat exchanger is to form by the cross section that aluminum strip metal plate is bent to approximate B shape on width.Adopt brazing sheet as the strip metal plate.In this brazing sheet, the outer surface side of core metal is coated with 10% Al-alloy metal scolder of the gross thickness that reaches plate of having an appointment; And the inner surface side of core metal is coated with 10% aluminium alloy sacrificial anode material of the gross thickness that reaches plate of having an appointment.The gross thickness of strip metal plate is about 0.15mm to 0.6mm.
Form tubular flat tube 8 by a pair of relative in parallel with each other planar section 1 and the pair of curved part 2 that links to each other with the two ends of planar section 1.And, form folded part 4 towards opposite planar lateral bending song at the core of the width of a planar section 1.
Two ora terminalis parts 9 and 10 of strip metal plate overlap each other.An ora terminalis part 10 forms stairstepping, and the inner surface of ora terminalis part 9 abuts against on the outer surface of ora terminalis part 10.The inner surface of ora terminalis part 10 abuts against on the top 5 of folded part 4.
As shown in figures 1 and 3, a lot of slits 6 separated from one another on forming vertically on the top 5 of folded part 4 discontinuously are used to make brazing metal by entering here.Above-mentioned slit 6 forms as follows.That is, under the state before the banded metallic plate of bending, form slit 6 as shown in Figure 4; The strip metal plate is bent backward at slit 6 places as the center then.Here, the length of slit 6 " c " arrives 15mm for 2mm.In addition, the distance " e " between the edge of adjacent slit 6 arrives 10mm for 3mm; And " e/c " is more than or equal to 0.6.
Fig. 5 is the sectional view of another flat tube for heat exchanger of the present invention.Be with the difference of the pipe shown in Fig. 1, two ora terminalis parts 9 of strip metal plate with 10 all with respect to folded part 4 parallel formation; And ora terminalis part 9, ora terminalis part 10 and folded part 4 tube section vertically on overlap each other.
The slit 6 at top 5 that is formed on folded part 4 identical with shown in Fig. 1 and Fig. 3.
Fig. 6 shows another embodiment of the present invention.In this embodiment, folded part 4 and new folded part 4a form respectively by the bending of the core on the width of pair of planar part 1 respect to one another, and the top abuts one another.On the top 5 of folded part 4, form slit 6.The length of slit 6 and between distance identical with shown in Fig. 1.In this embodiment, the strip metal plate ora terminalis part 9 and another ora terminalis part 10 overlap each other in the end of flat tube 8.In the above-described embodiments, formed single folded part 4 to form single dividing plate.Yet, can form two or more folded parts to form a plurality of dividing plates.In addition, the syndeton of dividing plate can adopt other forms.Yet in the present invention, structure is limited to the slit 6 that forms a lot of interruptions at the top of folded part 4.
As shown in Figure 7, a lot of above-mentioned flat tube layouts parallel to each other are arranged fin 7 between each flat tube 8, and the two ends of each flat tube 8 are inserted into header box (tube header) respectively and go up the pipe of (not shown) and insert in the hole.Under the state that heat exchanger has assembled, whole heat exchanger is put into high-temperature smelting pot, so that the brazing metal on fusing flat tube 8 outer surfaces is cooled to then and solidifies; Thus, flat tube 8 and fin 7, flat tube 8 and pipe patchhole by the welding means by overall fixed.Simultaneously, the top 5 of an ora terminalis part 9 of flat tube 8 self and another ora terminalis part 10 and folded part 4 and near the inner surface on it by the welding means by overall fixed.
Referring to Fig. 2 and 3, when brazing metal 3 was melted in smelting furnace, the brazing metal of the outer surface side of pipe entered the top 5 of folded part 4 from slit 6, and with the continuous fixed top 5 of welding manner and with its near the inner surface of pipe.Simultaneously, the outer surface of overlapping folded part 4 is also integrally welded.
(number range determines among the present invention)
In flat tube 8 of the present invention, be formed on vertical a plurality of slits 6 separated from one another at top 5 discontinuously, be used to make brazing metal by entering here.The length of slit 6 " c " arrives 15mm for 2mm; Distance between the edge of adjacent slots 6 " e " arrives 10mm for 3mm; And " e/c " is more than or equal to 0.6.Above-mentioned value obtains as optimum value of the present invention on the basis of following experiment.
To form the example that the flat tube 8 shown in Fig. 1 is used as testing.The major diameter in cross section is 24mm; And its minor axis is 2mm.The thickness of plate is respectively 0.2mm, 0.3mm and 0.4mm.
(table 1)
| Example | Slit length c (mm) | Gap e (mm) | Welding performance | Processing characteristics | e/c | Judge |
| (1) | 2 | 3 | ○ | ○ | 1.5 | ○ |
| (2) | 2 | 5 | ○ | ○ | 2.5 | ○ |
| (3) | 2 | 8 | ○ | ○ | 4.0 | ○ |
| (4) | 2 | 10 | ○ | ○ | 5.0 | ○ |
| (5) | 4 | 3 | ○ | ○ | 0.75 | ○ |
| (6) | 4 | 5 | ○ | ○ | 1.25 | ○ |
| (7) | 4 | 8 | ○ | ○ | 2.0 | ○ |
| (8) | 4 | 10 | ○ | ○ | 5.0 | ○ |
| (9) | 8 | 5 | ○ | ○ | 0.63 | ○ |
| (10) | 8 | 10 | ○ | ○ | 1.25 | ○ |
| (11) | 12 | 8 | ○ | ○ | 0.67 | ○ |
| (12) | 12 | 10 | ○ | ○ | 0.83 | ○ |
| (13) | 15 | 9 | ○ | ○ | 0.6 | ○ |
| (14) | 15 | 10 | ○ | ○ | 0.66 | ○ |
Zero: can accept *: unacceptable
(table 2)
| Example | Slit length c (mm) | Gap e (mm) | Welding performance | Processing characteristics | e/c | Judge |
| (15) | 1 | 1 | × | × | 1.0 | × |
| (16) | 1 | 3 | × | ○ | 3.0 | × |
| (17) | 1.5 | 3 | × | ○ | 2.0 | × |
| (18) | 1.5 | 6 | × | ○ | 4.0 | × |
| (19) | 2 | 2 | ○ | × | 1.0 | × |
| (20) | 2 | 12 | × | ○ | 6.0 | × |
| (21) | 2 | 20 | × | ○ | 10.0 | × |
| (22) | 4 | 2 | ○ | × | 0.5 | × |
| (23) | 4 | 12 | × | ○ | 3.0 | × |
| (24) | 4 | 20 | × | ○ | 5.0 | × |
| (25) | 8 | 2 | ○ | × | 0.25 | × |
| (26) | 8 | 4 | ○ | × | 0.5 | × |
| (27) | 8 | 12 | × | ○ | 1.5 | × |
| (28) | 8 | 20 | × | ○ | 10.0 | × |
| (29) | 12 | 2 | ○ | × | 0.16 | × |
| (30) | 12 | 5 | ○ | × | 0.42 | × |
| (31) | 12 | 7 | ○ | × | 0.58 | × |
| (32) | 12 | 12 | × | ○ | 1.0 | × |
| (33) | 12 | 20 | × | ○ | 1.67 | × |
| (34) | 15 | 2 | ○ | × | 0.13 | × |
| (35) | 15 | 5 | ○ | × | 0.33 | × |
| (36) | 15 | 8 | ○ | × | 0.53 | × |
| (37) | 15 | 12 | × | ○ | 0.8 | × |
| (38) | 15 | 20 | × | ○ | 1.33 | × |
| (39) | 17 | 5 | ○ | × | 0.29 | × |
| (40) | 17 | 10 | ○ | × | 0.58 | × |
| (41) | 17 | 15 | × | ○ | 0.88 | × |
| (42) | 17 | 20 | × | ○ | 1.18 | × |
| (43) | 20 | 5 | ○ | × | 0.25 | × |
| (44) | 20 | 10 | ○ | × | 0.5 | × |
| (45) | 20 | 15 | × | ○ | 0.75 | × |
| (46) | 20 | 20 | × | ○ | 1.0 | × |
Zero: can accept *: unacceptable
The thickness that is coated in the brazing metal 3 on each outer surface be plate gross thickness 10%.As shown in table 1, for flat tube of the present invention, form slit length " c " and be the different flat tubes of 2mm, and make the length (gap) " e " between the edge of slit arrive 10mm, and " e/c " is more than or equal to 0.6 for 3mm to 15mm.
In addition, as shown in table 2, as the example that is used for comparison, except flat tube of the present invention, forming slit length " c " is the various flat tubes of 1mm to 20mm, and makes the edge length (gap) " e " between the slit arrive 20mm for 1mm.
The length of the pipe that is used to test is 60mm.Pipe is placed in the high-temperature smelting pot, so that deposite metal scolder, cooling then.Next, welded condition is checked.
As shown in table 1 and table 2, aspect welding performance, gratifying result obtains in following scope; That is, slit length " c " arrives 20mm for 2mm; And the distance between the edge of slit " e " arrives 10mm for 2mm.That is to say that the outline line with pad of satisfactory intensity is formed entirely in the top 5 of folded part 4, and can guarantee crushing resistance.
Otherwise, be in the situation of 1mm or 1.5mm at slit length " c ", brazing metal passes slit unsatisfactorily and enters, thereby produces defective welding.In the situation of distance between the edge of slit " e " greater than 10mm, the part of finding not have the pad outline line (not welding portion) is above 1/3 of distance " e " between the edge, thereby the overall strength of flat tube is unsatisfactory.Top reason will hereinafter be described.That is, do not have the part of slit between the edge, the brazing metal that passes slit during with welding forms the outline line of pad, and the length of the metal that enters is constant.Correspondingly, when the distance between the edge is too big, can generate the bulk part of no pad outline line, cause intensity to reduce.
Can obtain and top identical result in the following situation arbitrarily; That is, the thickness of the plate of pipe is 0.2mm, 0.3mm or 0.4mm.
Aspect the processing characteristics of pipe, as shown in table 1 and 2, the length of slit must be smaller or equal to 15mm; And the distance between the edge of slit " e " must be more than or equal to 3mm; And " e/c " must be more than or equal to 0.6.When exceeding above-mentioned scope, when flat tube forms, can produce crack or distortion between the edge of slit, be unsuitable for as flat tube.That is to say,, when flat tube forms, can produce crack or distortion when the length of slit surpasses 15mm.In addition, the distance between the edge of slit can generate the crack smaller or equal to 2mm when forming flat tube.In addition, when " e/c " less than 0.6 the time, when forming flat tube, can produce the crack.
Under following any situation, obtain result same as described above; Promptly the thickness of the plate of pipe is 0.2mm, 0.3mm or 0.4mm.
Thus, it is as follows to be determined by experiment all gratifying optimum condition of welding performance and processing characteristics; That is, slit length " c " arrives 15mm for 2mm; Distance between the edge of slit 6 " e " arrives 10mm for 3mm; And " e/c " is more than or equal to 0.6.
Claims (2)
1, a kind of flat tube for heat exchanger, comprise: bend to relative in parallel with each other pair of planar part (1) and be connected to the pair of curved partly (2) at the two ends of planar section (1) at its width by the strip metal plate, become flat tubular thereby this is tubular
Scribble brazing metal (3) on the surface of wherein said strip metal plate, and described strip metal plate is bent so that described brazing metal (3) is positioned at the outer surface side of tubular;
In the center of the width of a described planar section (1), folded part (4) is folded into relative planar side, and the top (5) of described folded part (4) abuts against on the inner surface of facing surfaces side, so that at the inner dividing plate that forms of pipe;
Vertically go up to be interrupted in described top (5) separated from one anotherly and be formed for making a lot of slits (6) of brazing metal by entering here,
The length " c " of wherein said slit (6) arrives 15mm for 2mm; Distance " e " between the edge of adjacent slots (6) arrives 10mm for 3mm; And " e/c " is more than or equal to 0.6.
2, flat tube for heat exchanger according to claim 1, the thickness of wherein said strip metal plate are that 0.15mm is to 0.6mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP280425/2003 | 2003-07-25 | ||
| JP2003280425A JP2005043026A (en) | 2003-07-25 | 2003-07-25 | Flat tube for heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1829893A true CN1829893A (en) | 2006-09-06 |
| CN100437010C CN100437010C (en) | 2008-11-26 |
Family
ID=34100867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800214876A Expired - Fee Related CN100437010C (en) | 2003-07-25 | 2004-07-02 | Flat tube for heat exchanger |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20060180299A1 (en) |
| EP (1) | EP1653186A1 (en) |
| JP (1) | JP2005043026A (en) |
| CN (1) | CN100437010C (en) |
| WO (1) | WO2005010453A1 (en) |
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| FR2986313A1 (en) * | 2012-01-31 | 2013-08-02 | Valeo Systemes Thermiques | THERMAL EXCHANGER TUBE, HEAT EXCHANGER AND CORRESPONDING OBTAINING METHOD |
| CN103307915A (en) * | 2012-03-07 | 2013-09-18 | 富瑞精密组件（昆山）有限公司 | Flat plate heat pipe |
| CN105525980A (en) * | 2014-09-30 | 2016-04-27 | 泰安鼎鑫冷却器有限公司 | Corrosion-resistant high-strength radiating pipe |
| JP6559517B2 (en) * | 2015-09-16 | 2019-08-14 | 株式会社ティラド | Manufacturing method of flat tube for heat exchanger and flat tube by the method |
| JP6872304B2 (en) * | 2016-08-22 | 2021-05-19 | 株式会社ミツトヨ | Unit of measuring instrument and external device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1188889A (en) * | 1997-01-20 | 1998-07-29 | 株式会社杰克塞尔 | Pipe for heat exchanger |
| FR2810727B1 (en) * | 2000-06-21 | 2003-09-26 | Valeo Thermique Moteur Sa | FOLDED TUBE FOR A HEAT EXCHANGER AND HEAT EXCHANGER COMPRISING SUCH TUBES |
| JP4471473B2 (en) * | 2000-08-24 | 2010-06-02 | 株式会社ティラド | Flat tube for heat exchanger and manufacturing method thereof |
| JP4536273B2 (en) * | 2001-01-31 | 2010-09-01 | 株式会社ティラド | Flat tube for heat exchanger and method of manufacturing heat exchanger |
| EP1253391B1 (en) * | 2001-04-28 | 2006-06-28 | Behr GmbH & Co. KG | Folded flat tube with multiple cavities |
| DE10201511A1 (en) * | 2002-01-17 | 2003-07-31 | Behr Gmbh & Co | Welded multi-chamber tube |
| JP2004053128A (en) * | 2002-07-19 | 2004-02-19 | Oka Kogyo Kk | Flat tube for heat exchanger and its manufacturing method |
| JP2005037062A (en) * | 2003-07-15 | 2005-02-10 | Toyo Radiator Co Ltd | Aluminum heat exchanger |
| US20060230617A1 (en) * | 2005-04-13 | 2006-10-19 | Kent Scott E | Fabricated, brazed metal heat exchanger tube manufacture |
-
2003
- 2003-07-25 JP JP2003280425A patent/JP2005043026A/en active Pending
-
2004
- 2004-07-02 CN CNB2004800214876A patent/CN100437010C/en not_active Expired - Fee Related
- 2004-07-02 WO PCT/JP2004/009794 patent/WO2005010453A1/en active Application Filing
- 2004-07-02 EP EP04747262A patent/EP1653186A1/en not_active Withdrawn
- 2004-07-02 US US10/565,913 patent/US20060180299A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101600931B (en) * | 2007-02-10 | 2011-01-26 | 摩丁制造公司 | Heat exchanger tube and method of forming the same |
| CN102997737A (en) * | 2012-11-19 | 2013-03-27 | 泰安鼎鑫冷却器有限公司 | Double-pipe radiating pipe for radiator |
| CN105021078A (en) * | 2014-05-02 | 2015-11-04 | 泰安鼎鑫冷却器有限公司 | Bidirectional-folding sextuple-pipe-wall reinforced radiating pipe |
| CN105021077A (en) * | 2014-05-02 | 2015-11-04 | 泰安鼎鑫冷却器有限公司 | Two-way continuously-folded high-strength radiating tube |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005043026A (en) | 2005-02-17 |
| US20060180299A1 (en) | 2006-08-17 |
| EP1653186A1 (en) | 2006-05-03 |
| CN100437010C (en) | 2008-11-26 |
| WO2005010453A1 (en) | 2005-02-03 |
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