CN101033925A - Spiral groove heat exchange tube - Google Patents
Spiral groove heat exchange tube Download PDFInfo
- Publication number
- CN101033925A CN101033925A CNA2006100572237A CN200610057223A CN101033925A CN 101033925 A CN101033925 A CN 101033925A CN A2006100572237 A CNA2006100572237 A CN A2006100572237A CN 200610057223 A CN200610057223 A CN 200610057223A CN 101033925 A CN101033925 A CN 101033925A
- Authority
- CN
- China
- Prior art keywords
- helical groove
- heat exchange
- exchange tube
- stainless steel
- cross sectional
- 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.)
- Pending
Links
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 23
- 239000010935 stainless steel Substances 0.000 claims abstract description 23
- 230000007704 transition Effects 0.000 claims description 5
- 239000002912 waste gas Substances 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 10
- 238000001816 cooling Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
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- 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
- F28D7/02—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 helically coiled
- F28D7/026—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 helically coiled the conduits of only one medium being helically coiled and formed by bent members, e.g. plates, the coils having a cylindrical configuration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/11—Manufacture or assembly of EGR systems; Materials or coatings specially adapted for EGR 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
- F28D7/106—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 consisting of two coaxial conduits or modules of two coaxial 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
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
-
- 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
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/06—Tubular elements of cross-section which is non-circular crimped or corrugated in cross-section
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Geometry (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a kind of spiral groove heat-exchange pipe which includes stainless steel tube, and there are inward bossed spiral grooves in its surface. And the height and the width of the section shape of the stainless steel tube are unequal. In the circulation system of waste gas of automobile engine, the spiral groove whose section shape is unequal in the height and width is used in the heat-exchange tube of condenser so that making the condenser get high heat-exchange energy efficiency. Meanwhile, it's hard to accumulate filth in the tube of the inner and the outer, which greatly improves the emission performance index of automatic engine, and is satisfied with the higher requirement of environmental protection emission.
Description
Technical field
The present invention relates to a kind of helical groove heat exchange tube, especially a kind ofly be applied to helical groove heat exchange tube in the vehicle engine exhaust gas recirculated cooling system, that have the unequal cross sectional shape of height and the width.
Background technology
Waste gas recirculation cooling technology is a technology that effectively, reliably reduces Diesel engine oxynitrides discharge capacity, its operation principle is: after by cooler the EGT of discharging being reduced, pass back in the combustion chamber of engine, reduce the temperature of combustion chamber, thereby reduce the generation and the discharging of oxynitrides.Wherein, cooler is the key element in the gas recirculation system, and the height of its heat exchange efficiency has determined the temperature height of EGR gas, therefore, how improving the heat exchange efficiency of cooler for recycled exhaust gas under the prerequisite that keeps economy, is a primary technical indicator of design cooler.And heat exchanger tube is the critical component in the cooler, and the height of the coefficient of heat transfer of heat exchanger tube has determined the heat exchange efficiency of cooler to a great extent, so need constantly to improve as much as possible the coefficient of heat transfer of heat exchanger tube.
At present, the heat exchanger tube that uses in a large number in the engine exhaust recycle cooler all is to adopt a kind of surface to have the stainless steel tube of the cross section of inwardly protruding helical groove as circle.But, along with the requirement of environmental regulation to motor vehicle exhaust emission improves day by day, this cross sectional shape can not satisfy the following requirement that will be dozens or even hundreds of times increase to the generation and the discharging quantitative limitation of automobile oxynitrides for the heat exchange effect of circular helical groove heat exchange tube, for the more and more strict at present emission request and the economic market of keen competition, in the engine exhaust recirculated cooling system of limited installing space, it is unable to do what one wishes that the helical groove heat exchange tube of circular section shape has seemed.
Summary of the invention
The objective of the invention is on heat exchanger effectiveness, can not satisfy the present situation of following environmental protection demand at the helical groove heat exchange tube of above-mentioned existing circular section shape, and design a kind of heat exchanger tube with higher heat exchange efficiency, this heat exchanger tube can improve heat exchanger effectiveness greatly under the state of cooler constancy of volume.
For achieving the above object, the invention provides a kind of helical groove heat exchange tube, comprise that the surface has the stainless steel body of inwardly protruded helical groove, wherein, the height and the width of the cross sectional shape of described stainless steel body are unequal.
In the such scheme, the cross sectional shape of described stainless steel body can be rectangle, and connects for arc-shaped transition between the adjacent both sides; The cross sectional shape of described stainless steel body also can be made of two relative minor faces long limit relative with two, and wherein, described minor face is the camber line that protrudes from inside to outside, and described long limit can be straight line, also can be the camber line that protrudes from inside to outside; The cross sectional shape of described stainless steel body can also be ellipse.Need to prove, for better description, the above-mentioned cross sectional shape of described stainless steel body is that not have the standard shape that presents under the situation of helical groove, the cross sectional shape of the heat exchanger tube among the present invention in hypothesis be the combination of the cross sectional shape of the above-mentioned cross sectional shape of described stainless steel body and described helical groove.Described helical groove can be set to many, and every helical groove all can be for being provided with or interrupted the setting continuously; The cross sectional shape of helical groove can be set to " U " shape or " V " shape, is beneficial to the generation of small size shape face; Groove lead angle β is designed between 20～75 degree; Depth of groove D is not less than 0.4mm, can make fluid produce turbulent flow fully in pipe; Simultaneously, in order to ensure economical and practical, simplify difficulty of processing, so all acute angles of cross section all are designed to the circular arc R transition, wherein, be similarly rounding off between the surface of described groove and described stainless steel body and be connected, make all surface all can carry out heat exchange fully well, thoroughly eliminated the heat exchange dead angle.
When waste gas passes through this heat exchanger tube, can stream the spiral salient position, the local wall boundary layer separation takes place, form vortex in the spiral salient back, this boundary layer separation is strengthened with feasible heat transfer of generation vortex.And it is for the helical movement that spiral salient can cause waste gas, cause producing in the waste gas complicated secondary vortex flow (being also referred to as secondary stream), increased the turbulivity of waste gas, especially increased disturbance the near wall region boundary layer, promote the blending of boundary layer and core space fluid, made thermal convection current strengthen; Secondary stream also has the cross section of making VELOCITY DISTRIBUTION and is tending towards effect of uniform, the design of four kinds of these class flat cross section such as especially above-mentioned rectangle, ellipse, make the synergy of the centrifugal force that secondary stream and rotatablely moving produces allow the thickness attenuate greatly in boundary layer, critical Reynolds number is reduced, promptly take place ahead of time from the transformation of laminar flow to turbulent flow, strong turbulent flow makes dirt suffer fierce erosion in pipe, therefore, the spiral heat exchange tube of four kinds of these class flattened such as above-mentioned rectangle, ellipse is difficult to fouling, is more conducive to the heat conduction.
In addition, we also compare through experiment the heat exchange effect of the helical groove pipe of the helical groove heat exchange tube of the long-pending circular section shape of same cross-sectional and above-mentioned flattened, see accompanying drawing 1 and Fig. 2 for details.A, B are the coefficient of heat transfer of helical groove heat exchange tube of flattened and the relation curve of heat exchanger tube area of section among the figure; A ', B ' are the coefficient of heat transfer of helical groove heat exchange tube of flattened and the relation curve of flow velocity; C, C ' are respectively the graph of relation of the coefficient of heat transfer of helical groove heat exchange tube of circular section shape and heat exchanger tube area of section, flow velocity.
As seen from Figure 1: under the identical cross-sectional flow area, the helical groove heat exchange tube coefficient of heat transfer of the relative circular section shape of the coefficient of heat transfer of the helical groove heat exchange tube of flattened improves a lot.
As seen from Figure 2: with the increase of flow velocity, the helical groove heat exchange tube coefficient of heat transfer of flattened increases very fast, and the coefficient of heat transfer of the helical groove heat exchange tube of circular section shape comparatively fast tended to be steady to a certain period.
Therefore, as can be seen, the cooler that utilizes the present invention to make can obtain bigger cooling effect under equal volume size, improved the discharge performance index of automobile engine greatly, satisfies higher environment protection emission requirement.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
The experimental result comparison diagram that Fig. 1 concerns for the coefficient of heat transfer and the area of section of the helical groove heat exchange tube of flattened of the present invention and the helical groove heat exchange tube of circular section shape;
The experimental result comparison diagram that Fig. 2 concerns for the coefficient of heat transfer and the flow velocity of the helical groove heat exchange tube of flattened of the present invention and the helical groove heat exchange tube of circular section shape;
Fig. 3 is the first embodiment of the invention perspective view;
Fig. 4 is the cross sectional shape schematic diagram of first embodiment shown in Figure 3;
Fig. 5 is the perspective view of second embodiment of the invention;
Fig. 6 is the cross sectional shape schematic diagram of second embodiment shown in Figure 5;
Fig. 7 is the perspective view of third embodiment of the invention;
Fig. 8 is the cross sectional shape schematic diagram of the 3rd embodiment shown in Figure 7;
Fig. 9 is the perspective view of fourth embodiment of the invention;
Figure 10 is the cross sectional shape schematic diagram of the 4th embodiment shown in Figure 9.
The specific embodiment
Be respectively the perspective view and the cross sectional shape schematic diagram of first embodiment of the invention shown in Fig. 3,4.Among the figure, heat exchanger tube is the stainless steel body 2 that the surface has an inwardly protruded helical groove 21.Realize the heat exchange of maximal efficiency for the surface that makes full use of heat exchanger tube, and be easy to production and processing, the circular arc transition that is set to radius between present embodiment the two sides that heat exchanger tube is adjacent and is R connects, the cross sectional shape of helical groove is removed in this heat exchanger tube cross section, the cross sectional shape of stainless steel body 2 is rectangle, and its height and the width are unequal, and connects for arc-shaped transition between the adjacent both sides, as shown in Figure 4, wherein a is a depth of section; This spiral salient can be one or more; The cross sectional shape of helical groove can be set to " U " shape or " V " shape, is beneficial to the generation of small size shape face; The groove lead angle is designed between 20～75 degree; Depth of groove is not less than 0.4mm.
Be respectively the perspective view and the cross sectional shape schematic diagram of second embodiment of the invention shown in Fig. 5,6.Two relative minor faces that present embodiment and the difference of above-mentioned first embodiment are stainless steel body 2 for curved projection from inside to outside, radius is the arc surface of R1, as shown in Figure 6; Remainder is identical with embodiment one.Production and processing is convenient in such setting, and does not reduce heat exchange efficiency.
Be respectively the perspective view and the cross sectional shape schematic diagram of third embodiment of the invention shown in Fig. 7,8.In order to guarantee product quality, present embodiment also is set to be the camber line that protrudes from inside to outside with two of stainless steel tube 2 relative long limits on the basis of embodiment two, and the arc surface of curved projection from inside to outside all is arranged on four surfaces that are about to stainless steel tube 2; And as shown in Figure 8, the arc radius R ' on long limit is far longer than the radius R of minor face, the phenomenon that the surface " subsides " can not occur like this; Remainder is identical with embodiment one.
Fig. 9,10 is depicted as the perspective view and the cross sectional shape schematic diagram of fourth embodiment of the invention.Present embodiment is an equivalent deformation on the basis of above-mentioned the 3rd embodiment cross sectional shape, and promptly under the situation of the cross sectional shape of removing helical groove, the cross sectional shape of stainless steel body 2 is an ellipse, and its major axis b is greater than depth of section a; Remainder is identical with embodiment one.
Utilize cooler that the present invention makes under equal volume size, obtained bigger cooling effect, improved the discharge performance index of automobile engine greatly, satisfied higher environment protection emission requirement.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope of technical solution of the present invention.
Claims (9)
1, a kind of helical groove heat exchange tube comprises that the surface has the stainless steel body of inwardly protruded helical groove, and it is characterized in that: the height and the width of the cross sectional shape of described stainless steel body are unequal.
2, helical groove heat exchange tube according to claim 1 is characterized in that: the cross sectional shape of described stainless steel body is a rectangle, and connects for arc-shaped transition between the adjacent both sides.
3, helical groove heat exchange tube according to claim 1 and 2, it is characterized in that: the cross sectional shape of described stainless steel body is made of two relative minor faces long limit relative with two, wherein, described minor face is the camber line that protrudes from inside to outside, and described long limit is a straight line.
4, helical groove heat exchange tube according to claim 3 is characterized in that: described two relative long limits are the camber line that protrudes from inside to outside.
5, helical groove heat exchange tube according to claim 1 is characterized in that: the cross sectional shape of described stainless steel body is for oval.
6, according to claim 1,2 or 5 described helical groove heat exchange tubes, it is characterized in that: described helical groove is one or more.
7, helical groove heat exchange tube according to claim 6 is characterized in that: described one or more helical groove is for being provided with continuously or interrupted the setting.
8, according to claim 1,2 or 5 described helical groove heat exchange tubes, it is characterized in that: the cross sectional shape of described helical groove is " U " shape or " V " shape.
9, helical groove heat exchange tube according to claim 8 is characterized in that: be connected for rounding off between the surface of described helical groove and described stainless steel body.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100572237A CN101033925A (en) | 2006-03-09 | 2006-03-09 | Spiral groove heat exchange tube |
| US11/681,137 US20070209788A1 (en) | 2006-03-09 | 2007-03-01 | Heat exchanging tube with spiral groove |
| DE102007011635A DE102007011635A1 (en) | 2006-03-09 | 2007-03-09 | Heat exchange tube with the spiral grooves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100572237A CN101033925A (en) | 2006-03-09 | 2006-03-09 | Spiral groove heat exchange tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101033925A true CN101033925A (en) | 2007-09-12 |
Family
ID=38336273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100572237A Pending CN101033925A (en) | 2006-03-09 | 2006-03-09 | Spiral groove heat exchange tube |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20070209788A1 (en) |
| CN (1) | CN101033925A (en) |
| DE (1) | DE102007011635A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243029A (en) * | 2011-06-19 | 2011-11-16 | 枣庄福源印染机械有限公司 | Turbulence self-cleaning reduced pressure pipeline exchange water heater |
| CN102331200A (en) * | 2011-07-11 | 2012-01-25 | 上海科米钢管有限公司 | Heat exchanger provided with spiral arc-shaped heat exchange tubes |
| CN103162554A (en) * | 2011-12-09 | 2013-06-19 | 现代自动车株式会社 | Heat exchanger |
| CN103476969A (en) * | 2011-04-08 | 2013-12-25 | Bhp比利顿铝技术有限公司 | Heat exchange elements for use in pyrometallurgical process vessels |
| CN105300157A (en) * | 2014-07-08 | 2016-02-03 | 东风贝洱热系统有限公司 | Novel enhanced heat exchange pipe |
| CN106061341A (en) * | 2013-11-26 | 2016-10-26 | I.R.C.A.（共同）股份公司工业铠装及类似电阻 | Thermal block for heating liquids |
| CN110006283A (en) * | 2017-12-21 | 2019-07-12 | 马勒国际有限公司 | Flat tube for vent gas cooler |
| CN113404604A (en) * | 2020-03-17 | 2021-09-17 | 本田技研工业株式会社 | Cylinder head of multi-cylinder engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080115919A1 (en) * | 2006-11-16 | 2008-05-22 | Grant Allan Anderson | Radiator Tube with Angled Flow Passage |
| US8033325B2 (en) * | 2007-07-24 | 2011-10-11 | Asia Vital Components Co., Ltd. | Heat dissipation apparatus with coarse surface capable of intensifying heat transfer |
| US8517720B2 (en) | 2008-10-16 | 2013-08-27 | Lochinvar, Llc | Integrated dual chamber burner |
| US8286594B2 (en) * | 2008-10-16 | 2012-10-16 | Lochinvar, Llc | Gas fired modulating water heating appliance with dual combustion air premix blowers |
| FR2938637B1 (en) * | 2008-11-18 | 2013-01-04 | Cie Mediterraneenne Des Cafes | CIRCULATING CONDUIT OF A FLUID |
| EP2219001A1 (en) * | 2009-02-13 | 2010-08-18 | Alcatel Lucent | Corrugated tube with elliptical cross-section |
| US8844472B2 (en) * | 2009-12-22 | 2014-09-30 | Lochinvar, Llc | Fire tube heater |
| US9097436B1 (en) | 2010-12-27 | 2015-08-04 | Lochinvar, Llc | Integrated dual chamber burner with remote communicating flame strip |
| CN102735082B (en) * | 2011-04-11 | 2016-01-27 | 枣庄福源环能机械制造有限公司 | A kind of countercurrent internal-pressure decreasing pipeline heat exchange water heater |
| JP5850693B2 (en) * | 2011-10-05 | 2016-02-03 | 日野自動車株式会社 | Tube for heat exchanger |
| KR20130064936A (en) * | 2011-12-09 | 2013-06-19 | 현대자동차주식회사 | Heat exchanger for vehicle |
| US9562703B2 (en) | 2012-08-03 | 2017-02-07 | Tom Richards, Inc. | In-line ultrapure heat exchanger |
| US9464805B2 (en) | 2013-01-16 | 2016-10-11 | Lochinvar, Llc | Modulating burner |
| US10302369B1 (en) * | 2013-02-25 | 2019-05-28 | U.S. Department Of Energy | Non-vaned swirl core configurations |
| US20160123683A1 (en) * | 2014-10-30 | 2016-05-05 | Ford Global Technologies, Llc | Inlet air turbulent grid mixer and dimpled surface resonant charge air cooler core |
| JP6710669B2 (en) * | 2017-10-02 | 2020-06-17 | 東芝三菱電機産業システム株式会社 | Fully enclosed rotating electric machine and cooler |
| DE102017222742A1 (en) * | 2017-12-14 | 2019-06-19 | Hanon Systems | Pipe, in particular flat pipe for an exhaust gas cooler and exhaust gas cooler |
| KR20200006779A (en) * | 2018-07-11 | 2020-01-21 | 현대자동차주식회사 | Exhaust gas recirculation cooler |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2017201A (en) * | 1931-11-27 | 1935-10-15 | Modine Mfg Co | Condenser tube |
| US2181927A (en) * | 1936-04-03 | 1939-12-05 | Albert J Townsend | Heat exchanger and method of making same |
| US6684938B2 (en) * | 1999-01-20 | 2004-02-03 | Hino Motors, Ltd. | EGR cooler |
| FR2809483B1 (en) * | 2000-05-26 | 2003-08-15 | Spirec | IMPROVEMENTS ON SPIRAL TYPE HEAT EXCHANGERS |
| DE10127084B4 (en) * | 2000-06-17 | 2019-05-29 | Mahle International Gmbh | Heat exchanger, in particular for motor vehicles |
-
2006
- 2006-03-09 CN CNA2006100572237A patent/CN101033925A/en active Pending
-
2007
- 2007-03-01 US US11/681,137 patent/US20070209788A1/en not_active Abandoned
- 2007-03-09 DE DE102007011635A patent/DE102007011635A1/en not_active Withdrawn
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103476969A (en) * | 2011-04-08 | 2013-12-25 | Bhp比利顿铝技术有限公司 | Heat exchange elements for use in pyrometallurgical process vessels |
| CN102243029A (en) * | 2011-06-19 | 2011-11-16 | 枣庄福源印染机械有限公司 | Turbulence self-cleaning reduced pressure pipeline exchange water heater |
| CN102243029B (en) * | 2011-06-19 | 2012-11-14 | 枣庄福源印染机械有限公司 | Turbulence self-cleaning reduced pressure pipeline exchange water heater |
| CN102331200A (en) * | 2011-07-11 | 2012-01-25 | 上海科米钢管有限公司 | Heat exchanger provided with spiral arc-shaped heat exchange tubes |
| CN103162554A (en) * | 2011-12-09 | 2013-06-19 | 现代自动车株式会社 | Heat exchanger |
| CN106061341A (en) * | 2013-11-26 | 2016-10-26 | I.R.C.A.（共同）股份公司工业铠装及类似电阻 | Thermal block for heating liquids |
| CN105300157A (en) * | 2014-07-08 | 2016-02-03 | 东风贝洱热系统有限公司 | Novel enhanced heat exchange pipe |
| CN110006283A (en) * | 2017-12-21 | 2019-07-12 | 马勒国际有限公司 | Flat tube for vent gas cooler |
| US11421949B2 (en) | 2017-12-21 | 2022-08-23 | Mahle International Gmbh | Flat tube for an exhaust gas cooler |
| CN113404604A (en) * | 2020-03-17 | 2021-09-17 | 本田技研工业株式会社 | Cylinder head of multi-cylinder engine |
| CN113404604B (en) * | 2020-03-17 | 2023-05-30 | 本田技研工业株式会社 | Cylinder head of multi-cylinder engine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102007011635A1 (en) | 2007-09-13 |
| US20070209788A1 (en) | 2007-09-13 |
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