CN102272547A - Fin for a heat exchanger, and heat exchanger including such a fin - Google Patents

Fin for a heat exchanger, and heat exchanger including such a fin Download PDF

Info

Publication number
CN102272547A
CN102272547A CN 200980153050 CN200980153050A CN102272547A CN 102272547 A CN102272547 A CN 102272547A CN 200980153050 CN200980153050 CN 200980153050 CN 200980153050 A CN200980153050 A CN 200980153050A CN 102272547 A CN102272547 A CN 102272547A
Authority
CN
China
Prior art keywords
fin
heat exchanger
pipe
escapement
called
Prior art date
Application number
CN 200980153050
Other languages
Chinese (zh)
Inventor
帕特里克.博伊塞尔
欧万.维格尼拉斯
杰拉德.吉尔
Original Assignee
法雷奥热系统公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
Priority to FR0806005 priority Critical
Priority to FR0806005A priority patent/FR2937719B1/en
Application filed by 法雷奥热系统公司 filed Critical 法雷奥热系统公司
Priority to PCT/EP2009/063256 priority patent/WO2010049261A1/en
Publication of CN102272547A publication Critical patent/CN102272547A/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40718834&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CN102272547(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12Tubular 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
    • F28F1/24Tubular 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 transversely
    • F28F1/32Tubular 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 transversely the means having portions engaging further tubular elements
    • F28F1/325Fins with openings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2240/00Spacing means

Abstract

The invention relates to a fin (6) for a heat exchanger that comprises a body provided with at least one hole (8) for the passage of a tube (4) of said heat exchanger (1) and a so-called spacing means (14), the hole (8) having an outline with two so-called large sides (10) and two so-called small sides (12), and in which the spacing means (14) is provided on a small side (12) of the outline of the hole (8) for the passage of the tube (4). According to the invention, the spacing means (14) includes a bearing surface (16) capable of bearing another fin (6). The invention can particularly be used in the automotive industry.

Description

The fin and the heat exchanger that comprises this fin that are used for heat exchanger

Technical field

The heat exchanger that the present invention relates to be used for the fin of heat exchanger and comprise this fin.

Relate more specifically to a kind of fin that is used for heat exchanger, this fin comprises body, this body be provided as heat exchanger pipe passage at least one hole and be called the device of escapement, in this fin, the hole has a profile, this profile has two limits that are called long limit and is called two limits of minor face, and in this fin, and escapement is positioned on the minor face of profile in tube passage hole.

This fin is used to be called as in the interchanger of mechanical interchanger with reference to its assembly method, for example the engine cooling apparatus radiator.

Background technology

The heat exchanger of mechanical type generally includes at least one heat exchanger core, and this heat exchanger core comprises pipe and is called the heat exchange elements of fin.Fin is arranged to parallel to each other and perpendicular to pipe.In other words, fin is stacked on top of each other.Usually, fin is installed with the hole and is used to make pipe to pass through, and the quantity in hole equals the quantity at described row's pipe.

Fin-tube core bundle is mechanically kept by instrument, and this instrument is also referred to as olive-like piece (olive), and it is inserted in the pipe so that tube wall deformation and force them against the hole that is arranged in the fin.Each fin and next fin are spaced apart by spaced apart (for example one millimeter magnitude).

Each all is inserted into tube plate then in the end of pipe, and it has opening and comes receiving tube.Tube plate is covered cover piece subsequently to form header.

Also in practice known, in the interchanger of mechanical type, tube plate has been assembled packing ring.Pipe and tube plate are utilized bending operation (being called " expansion ") and assemble, and each end that this operation comprises convergent divergent channel is with extruded gasket and for good and all assemble end and this plate of pipe thus hermetically with fluid.

Known from document US 3,771 595 especially as above-mentioned fin.In the document, the spaced apart escapement that utilizes between two adjacent fins is realized.This escapement obtains by cutting and perforated metal band, and this metal band constitutes the fin with otch identical with the shape of the cross section of pipe, has kept the periphery little material pieces on every side of otch.These material pieces are also referred to as flange, and it is turned up then to form escapement.

Heat exchanger in the document US 3,771 595 has the pipe of band oval cross section.Also for oval, it has two vertical axis of symmetry to the access opening that is used for pipe in the fin, has major dimension and secondary size respectively thus.

But these fins have the shortcoming that can not be applied in some heat exchangers, and in these heat exchangers, separately the interval of two fins is greater than the secondary size of the access opening that is used for heat exchanger tube.

Particularly, in this case, the spaced apart secondary size that can not surpass the tube passage hole of fin.That is to say, in the document, the spaced apart restriction that is subjected to the height of flange.

Summary of the invention

In order to eliminate this shortcoming, the present invention proposes aforesaid fin, and wherein escapement comprises the stayed surface that can support another fin.

This fin makes and can obtain a kind of spaced apartly that it is greater than the secondary size of tube passage and can consider spaced apart recalibration.

Particularly, in the present invention, stayed surface is arranged in the continuation of escapement, and expression is spaced apart is independent of the height of flange or escapement and is adjusted for this.

Specific embodiment of the present invention proposes:

-the stayed surface that can support another fin is formed the integral part of described escapement,

-the stayed surface that can support another fin is manufactured to the form of turning up the edge, and this edge is basically parallel to the plane on the overall elongation plane that is called as fin,

-fin comprises that also at least one can disturbance strides the device of the air-flow that this fin passes, and

The device of-energy rough air is formed by shutter, and described shutter is parallel to the direction of described air-flow.

The invention still further relates to a kind of heat exchanger, it comprise at least one aforesaid fin and wherein fin have the heat-exchange tube that passes it.

Description of drawings

In the detailed description that only provides by by way of example below, with reference to accompanying drawing, wherein:

Fig. 1 is the schematic diagram of mechanical type heat exchanger;

Fig. 2 is part perspective and the plan view according to the core bundle of fin of the present invention and pipe;

Fig. 3 is the part perspective view according to fin of the present invention;

Fig. 4 is part perspective and the side view according to the core bundle of fin of the present invention and pipe; And

Fig. 5 shows according to each step in the part of the manufacture method of fin of the present invention.

The specific embodiment

As shown in Figure 1, the heat exchanger 1 of mechanical type comprises two headers 2.Header 2 is arranged to via at least one group of pipe 4 and is communicated with, the structure that this group pipe is set to align, and heat-transfer fluid is by this pipe circulation.

Heat exchanger 1 can be used as cooler especially with the cooled engine cooling agent.In this case, heat-transfer fluid is an engine coolant, for example comprises the water of ethylene glycol.

In the embodiment shown in Fig. 2 to 4, pipe 4 is square circles, has two limits that are called long limit and two limits that are called minor face, and minor face is circular.In this embodiment, relative long limit each all have recessed shape.This tube shape is also referred to as " beans shape " or " peanut shape ".

Pipe 4 is alignd in parallel with each other along the direction that is called first direction.In this case, first direction is perpendicular to the direction of the air-flow F that passes heat exchanger.In other words, pipe is stacked on top of each other along first direction.

Pass the heat-transfer fluid and the air-flow F exchange heat energy of pipe 4 circulations.In order to increase the heat exchange between heat-transfer fluid and the air-flow, parallel heat exchange elements (being manufactured to the form of fin 6 here) is set between the header 2.Fin 6 is used to make air-flow to stride this fin along the assigned direction that is called second direction and passes.

Fin 6 is provided with transverse to managing 4 axis and being parallel to header 2.In other words, fin 6 is by stacked on top of each other, and the distance of separation of two adjacent fins is called as spaced apart.The stacked direction of fin 6 is perpendicular to the stacked direction of pipe 4.

In this embodiment, fin 6 is metal bands, and this metal band is rectangle and width and length dimension equal widths and length dimension that have basic and header 2 substantially.Each fin 6 extends in a plane substantially, and this plane is called as the overall elongation plane.

Fin 6 comprises body, and this body is provided with at least one hole 8 as the passage of the pipe 4 of heat exchanger 1.This hole is shown in Fig. 3 of the application.

Hole 8 has a profile, is elongated profile in this case, corresponding to the shape of the pipe 4 that passes fin 6.Among the embodiment shown here, the profile of pipe 8 comprises two limits that are called long limit 10 and two limits that are called minor face 12.

More particularly, this in this case the profile in hole 8 have square circle (oblong) shape, wherein each of two long limits 10 all has recessed shape.The square toroidal is a kind ofly to be longer than its width and to have the shape of circular portion at this place, two ends.

Fin 6 also comprises the device that is called escapement 14.Escapement 14 (being also referred to as furcella) is positioned on the minor face 12 of the profile of managing 4 access openings 8 in this case.Here, escapement 14 is by the direction location perpendicular to air-flow F.

In this embodiment, escapement 14 extends from the body of the metal band of making fin, and this extends in the plane on the overall elongation plane that is different from fin 6 and carries out.In this case, escapement 14 is substantially perpendicular to the overall elongation plane extension of fin.Escapement 14 is formed the integral part of the body of fin 6 in this case.

Escapement 14 is especially by punching press with turn up the metal that forms fin 6 and obtain.When carrying out punching press, take steps to guarantee to stay subsequently two material piece (shard), these two sheets are turned up then to form escapement 14.

Escapement or flange 14 define spaced apart between two adjacent fins of heat exchanger core bundle.It should be noted that the distance that direction that this spaced apart expression is piled up in heat exchanger along fin is separated two fins.

According to the present invention, flange 14 also comprises the surface 16 that can support another fin.

In other words, escapement 14 is equipped with protuberance 16, and this protuberance extends along the plane on the extension plane that is different from this device.In this case, the protuberance of escapement or stayed surface 16 are arranged essentially parallel to the overall elongation plane extension of fin 6.This protuberance makes the spaced apart of unanimity between the fin 6 can keep heat exchanger 1.

That is to say that the surface 16 that can support another fin can be counted as the protuberance that extends along the plane that is different from flange 14.

In the embodiment shown, the surface 16 that can support another fin is manufactured to the edge turned up or the form of tongue piece 16.In other words, escapement 14 comprises the end that is connected to fin 6 and away from the end of the end that is connected to fin 6.The far-end of escapement or flange 14 comprises stayed surface 16, and extend on its overall elongation plane that is arranged essentially parallel to fin 6 in this case.

Tongue piece 16 is arranged in the continuation of escapement 14 and is roughly elongated, flat and narrow shape.Being connected between escapement 14 and the tongue piece 16 is via radius in this case.In other words, tongue piece 16 is connected to flange 14.Change sentence again and say that tongue piece 16 is manufactured to integral part escapement 14 and body fin 6.

The surface 16 that can support another fin is by making two material piece that form escapement 14 outwards turn to (roll) to obtain.This turns to and utilizes round punch to obtain.

Allow usually the utilization again of more abandoned materials after the punching press in the hole 8 that is used for being formed for pipe thus according to fin 6 of the present invention.It should be noted that this additional materials that remains on the interchanger and contact with pipe can help heat exchange.

Fin 6 also comprises at least one device 18 of energy rough air F.Here, the device 18 of energy rough air F is manufactured to the form of the shutter of the direction that is parallel to air-flow F.

Fin 6 can obtain by the method that comprises following step at least especially:

-metal band is stamped to form the hole 8 as the passage of pipe 4, keeps two material piece 14 (steps A),

-these two material piece 14 are utilized drift and mould is turned up (step B),

-these two material piece 14 are utilized round punch, and 8 outside turns to (step C) to form the surface 16 that can support another fin towards the hole.

It should be noted that punching press is that the drift that utilizes the shape with pipe to adapt carries out.In this case, the drift of use is the drift that is called as peanut shape.

Can design additional manufacturing step, the height of material piece 14 is used and knocks the interval of dolly block (beating dolly block) calibration need to obtain in this step, and/or in this step transverse groove be formed with obtain can rough air device 18, and/or metallic plate is cut open to obtain two metal bands at least in this step.

Only pass through the described embodiment of example above the invention is not restricted to, but comprise that art technology has all the replacement forms that can imagine within the scope of the appended claims.Above-mentioned replacement form can be considered separately or combination with one another.

Claims (7)

1. fin (6) that is used for heat exchanger, comprise body, this body is provided with as at least one hole (8) of the passage of the pipe (4) of described heat exchanger (1) and is called the device (14) of escapement, hole (8) has a profile, this profile has two limits that are called long limit (10) and two limits that are called minor face (12), and escapement (14) is positioned on the minor face (12) of profile of access opening (8) of pipe (4), it is characterized in that escapement (14) comprises the stayed surface (16) that can support another fin.
2. as last the described fin of claim, wherein, can support the stayed surface (16) of another fin to be formed the integral part of described escapement (14).
3. fin as claimed in claim 1 or 2, wherein, the stayed surface (16) that can support another fin is manufactured to the form of turning up edge (16), and this turns up the plane that the edge is basically parallel to the overall elongation plane that is called fin.
4. fin as claimed in claim 1 or 2 comprises that also at least one can disturbance passes the device (18) of the air-flow (F) of described fin (6).
5. as last the described fin of claim, wherein, the device (18) of the described air-flow of described energy disturbance is formed shutter, and described shutter is parallel to the direction of described air-flow (F).
6. a heat exchanger (1) comprises at least one described fin (6) in the claim as described above, and described fin has the pipe (4) that passes it, and heat-transfer fluid circulates in this pipe.
7. as last the described heat exchanger of claim, wherein, pipe (4) has the square toroidal.
CN 200980153050 2008-10-29 2009-10-12 Fin for a heat exchanger, and heat exchanger including such a fin CN102272547A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR0806005 2008-10-29
FR0806005A FR2937719B1 (en) 2008-10-29 2008-10-29 WING FOR HEAT EXCHANGER AND HEAT EXCHANGER COMPRISING SUCH AILT
PCT/EP2009/063256 WO2010049261A1 (en) 2008-10-29 2009-10-12 Fin for a heat exchanger, and heat exchanger including such a fin

Publications (1)

Publication Number Publication Date
CN102272547A true CN102272547A (en) 2011-12-07

Family

ID=40718834

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200980153050 CN102272547A (en) 2008-10-29 2009-10-12 Fin for a heat exchanger, and heat exchanger including such a fin

Country Status (6)

Country Link
EP (1) EP2342523B1 (en)
CN (1) CN102272547A (en)
BR (1) BRPI0920049A2 (en)
FR (1) FR2937719B1 (en)
MX (1) MX2011004502A (en)
WO (1) WO2010049261A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104995476A (en) * 2013-02-18 2015-10-21 株式会社电装 Heat exchanger and production method therefor
CN106918261A (en) * 2015-12-25 2017-07-04 浙江盾安热工科技有限公司 A kind of fin and heat exchanger
CN107980092A (en) * 2015-06-12 2018-05-01 法雷奥热系统公司 Particularly it is used for the fin of the heat exchanger of motor vehicles and corresponding heat exchanger
CN108369080A (en) * 2015-07-17 2018-08-03 法雷奥热系统公司 Heat exchanger with improved fin
CN108431537A (en) * 2015-07-17 2018-08-21 法雷奥热系统公司 Include the fin heat exchanger of improved louvre blade

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012130333A1 (en) * 2011-04-01 2012-10-04 Valeo Systemes Thermiques Fin for a heat exchanger, and heat exchanger provided with such fins
EP2674452B1 (en) 2012-06-13 2018-03-07 Continental Reifen Deutschland GmbH Sulphur linkable rubber coating mixture
DE102012107608A1 (en) 2012-08-20 2014-02-20 Continental Reifen Deutschland Gmbh rubber compound
DE102012107607A1 (en) 2012-08-20 2014-02-20 Continental Reifen Deutschland Gmbh rubber compound
DE102013101343A1 (en) 2012-10-24 2014-04-24 Continental Reifen Deutschland Gmbh Rubber compound and pneumatic vehicle tires
DE102012110121A1 (en) 2012-10-24 2014-04-24 Continental Reifen Deutschland Gmbh Rubber compound and pneumatic vehicle tires
DE102012112320A1 (en) 2012-12-14 2014-06-18 Continental Reifen Deutschland Gmbh Sulfur crosslinkable rubber compound
DE102012112596A1 (en) 2012-12-19 2014-06-26 Continental Reifen Deutschland Gmbh Sulfur crosslinkable rubber compound
DE102013103945A1 (en) 2013-04-18 2014-10-23 Continental Reifen Deutschland Gmbh Vehicle tires
DE102013108937A1 (en) 2013-08-19 2015-02-19 Continental Reifen Deutschland Gmbh Sulfur crosslinkable rubber compound
ES2612554T3 (en) 2013-09-27 2017-05-17 Continental Reifen Deutschland Gmbh Crosslinkable rubber mixture with sulfur
ES2612552T3 (en) 2013-09-27 2017-05-17 Continental Reifen Deutschland Gmbh Crosslinkable rubber mixture with sulfur
DE102013110720A1 (en) 2013-09-27 2015-04-02 Continental Reifen Deutschland Gmbh Sulfur crosslinkable rubber compound and pneumatic vehicle tires
DE102013110719A1 (en) 2013-09-27 2015-04-02 Continental Reifen Deutschland Gmbh Sulfur crosslinkable rubber compound and pneumatic vehicle tires
ES2606834T3 (en) 2013-12-20 2017-03-28 Continental Reifen Deutschland Gmbh Mixture of rubber and car tires
DE102014202748A1 (en) 2014-02-14 2015-08-20 Continental Reifen Deutschland Gmbh Sulfur crosslinkable rubber compound and vehicle tires
DE102014202749A1 (en) 2014-02-14 2015-08-20 Continental Reifen Deutschland Gmbh Sulfur crosslinkable rubber compound and vehicle tires
DE102014207668A1 (en) 2014-04-23 2015-10-29 Continental Reifen Deutschland Gmbh Rubber compound and vehicle tires
DE102014214063A1 (en) 2014-07-18 2016-01-21 Continental Reifen Deutschland Gmbh Vulcanizate and vehicle tires and process for their preparation
EP3059240B1 (en) 2015-02-18 2019-10-30 Trinseo Europe GmbH Multivinylaminosilanes as branching agents for functionalized elastomeric polymers
ES2685917T3 (en) 2015-10-21 2018-10-15 Trinseo Europe Gmbh Dienes functionalized with aminosilane for use in the functionalization of elastomeric polymers
PL3257869T3 (en) 2016-06-17 2019-07-31 Trinseo Europe Gmbh Silane-mediated enhancement of rubber storage stability
EP3500440A1 (en) 2016-08-17 2019-06-26 Continental Reifen Deutschland GmbH Sulfur-crosslinkable rubber mixture and vehicle tire
EP3330657B1 (en) 2016-12-01 2020-10-28 Modine Manufacturing Company Air fin for a heat exchanger, and method of making the same
DE102017211247A1 (en) 2017-07-03 2019-01-03 Continental Reifen Deutschland Gmbh Sulfur crosslinkable rubber compound
PL3434699T3 (en) 2017-07-27 2020-05-18 Trinseo Europe Gmbh Use of specific aminosilyl monomers in the manufacture of rubber
DE102017218948A1 (en) 2017-10-24 2019-04-25 Continental Reifen Deutschland Gmbh Vehicle tires
DE102018217197A1 (en) 2018-10-09 2020-04-09 Continental Reifen Deutschland Gmbh Sulfur crosslinkable rubber compound
WO2020095798A1 (en) * 2018-11-07 2020-05-14 ダイキン工業株式会社 Heat exchanger and air conditioner
DE102018221587A1 (en) 2018-12-13 2020-06-18 Continental Reifen Deutschland Gmbh Spike and pneumatic vehicle tires

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771595A (en) * 1971-09-22 1973-11-13 Modine Mfg Co Heat exchange device
JPH0581336B2 (en) * 1989-12-11 1993-11-12 Hidaka Seiki Kk
JPH109787A (en) * 1996-04-25 1998-01-16 Denso Corp Plate fin type heat exchanger
DE19741856A1 (en) * 1997-09-23 1999-03-25 Behr Gmbh & Co Rib for a heat exchanger and method for producing rib openings in such ribs
FR2866698B1 (en) * 2004-02-24 2017-11-24 Valeo Thermique Moteur Sa Heat exchanger with fins with spacing legs
FR2909912B1 (en) * 2006-12-14 2012-08-31 Valeo Systemes Thermiques METHOD FOR PRODUCING A FIN IN A HEAT EXCHANGER, A FINISH OBTAINED BY SUCH A METHOD, AND A HEAT EXCHANGER COMPRISING SUCH AILET

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104995476A (en) * 2013-02-18 2015-10-21 株式会社电装 Heat exchanger and production method therefor
CN104995476B (en) * 2013-02-18 2016-12-21 株式会社电装 Heat exchanger and manufacture method thereof
CN107980092A (en) * 2015-06-12 2018-05-01 法雷奥热系统公司 Particularly it is used for the fin of the heat exchanger of motor vehicles and corresponding heat exchanger
CN107980092B (en) * 2015-06-12 2020-09-01 法雷奥热系统公司 Fin, in particular for a heat exchanger of a motor vehicle, and corresponding heat exchanger
CN108369080A (en) * 2015-07-17 2018-08-03 法雷奥热系统公司 Heat exchanger with improved fin
CN108431537A (en) * 2015-07-17 2018-08-21 法雷奥热系统公司 Include the fin heat exchanger of improved louvre blade
CN106918261A (en) * 2015-12-25 2017-07-04 浙江盾安热工科技有限公司 A kind of fin and heat exchanger

Also Published As

Publication number Publication date
EP2342523B1 (en) 2017-04-12
FR2937719A1 (en) 2010-04-30
WO2010049261A1 (en) 2010-05-06
MX2011004502A (en) 2011-05-24
BRPI0920049A2 (en) 2015-12-15
FR2937719B1 (en) 2013-12-27
EP2342523A1 (en) 2011-07-13

Similar Documents

Publication Publication Date Title
JP4300508B2 (en) Plate fin and heat exchanger core for heat exchanger
US7740058B2 (en) Plate heat exchanger
US7762318B2 (en) Condensing heat-exchange copper tube for an flooded type electrical refrigeration unit
EP0271319B1 (en) Method of making a heat exchanger assembly with integral fin units
EP2869016B1 (en) Heat exchanger, method for manufacturing heat exchanger, and air conditioner
US6502305B2 (en) Method of manufacturing a heat-exchanger fin, fins according to the method and exchange module including these fins
KR100365639B1 (en) Heat exchanger
US8162041B2 (en) Heat exchanger of plate fin and tube type
JP5403472B2 (en) Plate heat exchanger
US7036567B2 (en) Heat exchanger for cooling air
KR100391943B1 (en) Double heat exchanger with condenser and radiator
US5186250A (en) Tube for heat exchangers and a method for manufacturing the tube
US7231965B2 (en) Heat exchanger and heat transferring member with symmetrical angle portions
JP2555449B2 (en) Heat exchanger
RU2413152C2 (en) Heat exchanger from hollow flat sections
US20150068244A1 (en) Heat exchanger and air-conditioning apparatus
EP1060808B2 (en) Fluid conveying tube as well as method and device for manufacturing the same
US5582246A (en) Finned tube heat exchanger with secondary star fins and method for its production
US6032728A (en) Variable pitch heat exchanger
CN101194137B (en) Plate heat exchanger with exchanging structure forming several channels in a passage
US20050194123A1 (en) Plate heat exchanger
EP1231448B1 (en) Heat exchanger
CA1277976C (en) Lanced sine-wave heat exchanger
US9534827B2 (en) Air heat exchanger
US20120227945A1 (en) Free-draining finned surface architecture for heat exchanger

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20111207