EP1195572B1 - Kühler, insbesondere für Kraftfahrzeuge - Google Patents
Kühler, insbesondere für Kraftfahrzeuge Download PDFInfo
- Publication number
- EP1195572B1 EP1195572B1 EP01123619A EP01123619A EP1195572B1 EP 1195572 B1 EP1195572 B1 EP 1195572B1 EP 01123619 A EP01123619 A EP 01123619A EP 01123619 A EP01123619 A EP 01123619A EP 1195572 B1 EP1195572 B1 EP 1195572B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipe
- ripples
- radiator
- sections
- wall
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/26—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being integral with the element
-
- 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
- F28F1/08—Tubular elements crimped or corrugated in longitudinal section
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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
- 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
- F28D1/04—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 tubular conduits
Definitions
- the invention relates to a cooler, in particular for Motor vehicles, with one in a cooling air flow arranged and from a medium to be cooled flowed through tube, which a multitude of annular waves has, which extends radially outward from the tube wall extend and have a distance from each other, whereby between the radially extending wall sections of the individual waves one with the interior of the tube in Connected space is provided.
- FR 786 832 is a cooler with several in parallel arranged corrugated pipes known from one to flows through cooling medium and from the outside with cooling air be charged.
- the waves have the shape of continuously intermeshing toroidal surfaces and the width of the waves and troughs is essentially equal.
- Inside the corrugated pipes are pipes with arranged cross-shaped cross section, through the cooling air is directed. The manufacture of such a cooler is consuming.
- a heat exchanger is also known from JP 58 160799 A. for air with several cylindrical tubes, one Connect the inlet chamber to an outlet chamber, whereby to cross a heat exchanger chamber.
- the diameter of the Pipes is expanded at regular intervals, which means flat waves are formed, the axial extent of which corresponds to their diameter.
- JP 08 110186 A describes a process for the production of a flat tube bent into a spiral Formation of a cooling channel. This will be a cylindrical one First provide the tube with annular shafts and then in two stages to a spiral bent, the tube between the two bends is pressed flat. In this forming process the original shape of the waves in an undefined way changed.
- the invention has for its object a cooler to create the kind mentioned above, the special is inexpensive to manufacture, even compared to one coolers made using finned tubes, where the cooling capacity related to a pipe length unit should be significantly higher than the cooling capacity smoother Pipes of comparable dimensions.
- this object is achieved in claim 1 specified features solved.
- this Tube of the cooler a variety of upset, annular Waves that radiate outward from the pipe wall extend and have a distance from each other, the individual waves are preferably designed that between their radially extending wall sections one related to the interior of the pipe Space is provided and the width of the Gap essentially equal to the wall thickness of the Tube or the wall sections of the shafts or smaller than this is.
- the design of the cooler according to the invention stands out due to low manufacturing costs and good cooling performance.
- the upset waves cause an increase in surface area of up to 50% compared to a straight pipe.
- the generated when compressing the waves Inner contour of the tube swirling through the tube conducted medium achieved, resulting in a better heat transfer and a higher cooling performance results.
- the waves on the tube can be arranged in any position. This is a flexible adaptation to the installation conditions for the Cooler easily possible.
- Corrugated pipe sections can also provide smooth pipe sections be subsequently formed or with holders can be provided.
- Aluminum tubes can be used for the cooler.
- the starting semifinished product to produce the cooler also a smooth, with a plastic, especially polyamide, coated tube aluminum can be used because it has been shown that in the upsetting process to produce the shafts Plastic coating is not damaged.
- a plastic, especially polyamide, coated tube aluminum can be used because it has been shown that in the upsetting process to produce the shafts Plastic coating is not damaged.
- the usage of a pre-coated tube leads to a significant one Simplification of production, as a subsequent Coating the corrugated tube is much more complex.
- the drawing shows a section of a tube 1 cooler according to the invention, partially cut.
- the pipe 1 has annular shafts 2 at regular intervals, which extend radially outwards and through axial Compression of a previously smooth, cylindrical tube as a semi-finished product have been generated. Between the waves 2 there are smooth cylindrical tube sections 3, the Diameter essentially corresponds to that of the starting semi-finished product.
- the individual shafts 2 have one another parallel wall sections 4 in the form of circular washers, which are arranged radially to the tube axis and which on their Edges merge into wall sections 5, 6, which are about the shape of partial torus surfaces. Between the wall sections 4 and 6 of each shaft 2 is an annular space 7 provided that in connection with the interior 8 of the tube 1 stands.
- the shafts 2 have an outer diameter which is approximately that 1.3 to 1.5 times the outside diameter of the pipe sections 3 is.
- the width of the gap 7 is essentially equal to the wall thickness of the pipe sections 3, but can also be smaller. Especially in the radially outer Area is a smaller width or insufficient specification of the gap 7 without disadvantage for the function.
- the center distance between the individual shafts can be any to get voted. A center distance has proven to be particularly favorable proven to be about the outside diameter of the Pipe sections 3 corresponds.
- the tube 1 from a liquid medium to be cooled e.g. the oil an internal combustion engine or a motor vehicle transmission flows through and on the outside with a cooling air flow applied.
- a liquid medium to be cooled e.g. the oil an internal combustion engine or a motor vehicle transmission
- the waves 2 by up to 50% enlarged surface of tube 1 for one compared to a smooth one Pipe greater heat transfer.
- it causes through the waves 2 formed, periodically changing inner contour of the pipe 1 turbulence in the medium to be cooled and thereby ensures a significantly improved heat transfer between this medium and the pipe wall. All in all becomes a significantly increased cooler performance in this way reached that the cooling performance of the more complex finned tubes almost approached.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- General Details Of Gearings (AREA)
- Motor Or Generator Cooling System (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Description
Claims (5)
- Kühler, insbesondere für Kraftfahrzeuge, mit einem in einem Kühlluftstrom angeordneten und von einem zu kühlendem Medium durchströmten Rohr (1), das eine Vielzahl ringförmiger Wellen (2) aufweist, die sich von der Rohrwand radial nach außen erstrecken und einen Abstand voneinander haben, wobei zwischen den sich radial erstreckenden Wandabschnitten (4, 6) der einzelnen Wellen (2) ein mit dem Innenraum (8) des Rohrs (1) in Verbindung stehender Zwischenraum (7) vorgesehen ist, dadurch gekennzeichnet, daß die Wellen (2) durch axiales Stauchen eines zuvor glatten Rohres gebildet sind, daß den Zwischenraum (7) zwei Wandabschnitte (4) in Form von Kreisringscheiben begrenzen, die radial zur Rohrachse angeordnet sind und die an ihren Rändern in Wandabschnitte (5, 6) übergehen, die im wesentlichen die Form von Torusteilflächen haben, daß die Breite des Zwischenraums (7) im wesentlichen gleich der Wandstärke des Rohrs (1) oder kleiner als die Wandstärke des Rohrs (1) ist und daß zwischen den Wellen (2) glatte, zylindrische Rohrabschnitte (3) vorgesehen sind.
- Kühler nach Anspruch 1, dadurch gekennzeichnet, daß der Außendurchmesser der Wellen (2) um den Faktor 1,3 bis 1,5 größer ist als der Außendurchmesser der angrenzenden Rohrabschnitte (3).
- Kühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Mittenabstand zwischen den einzelnen Wellen (2) etwa gleich dem Außendurchmesser der dazwischenliegenden glatten Rohrabschnitte (3) ist.
- Kühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Rohr (1) einen glatten Rohrabschnitt hat, dessen Länge größer ist als der Mittenabstand der Wellen (2).
- Kühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Rohr (1) aus Aluminium besteht und auf seiner Außenseite mit einer Kunststoffbeschichtung, insbesondere aus Polyamid, beschichtet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10049987 | 2000-10-06 | ||
DE10049987A DE10049987A1 (de) | 2000-10-06 | 2000-10-06 | Kühler, insbesondere für Kraftfahrzeuge |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1195572A2 EP1195572A2 (de) | 2002-04-10 |
EP1195572A3 EP1195572A3 (de) | 2002-10-16 |
EP1195572B1 true EP1195572B1 (de) | 2003-11-19 |
Family
ID=7659174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01123619A Expired - Lifetime EP1195572B1 (de) | 2000-10-06 | 2001-10-02 | Kühler, insbesondere für Kraftfahrzeuge |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1195572B1 (de) |
AT (1) | ATE254748T1 (de) |
DE (2) | DE10049987A1 (de) |
ES (1) | ES2178981T1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4142870C2 (de) * | 1991-12-23 | 1995-03-16 | Bruker Franzen Analytik Gmbh | Verfahren für phasenrichtiges Messen der Ionen aus Ionenfallen-Massenspektrometern |
EP1511967B1 (de) | 2002-06-11 | 2009-02-18 | Erbslöh Aluminium GmbH | Hohlkammerprofil aus metall, insbesondere für wärmetauscher |
DE10225812C1 (de) * | 2002-06-11 | 2003-08-21 | Erbsloeh Aluminium Gmbh | Hohlkammerprofil aus Metall, insbesondere für Wärmetauscher |
DE102010021334B4 (de) * | 2010-05-22 | 2013-03-28 | Boa Balg- Und Kompensatoren-Technologie Gmbh | Verfahren zur Herstellung eines Wärmetauschers und Wärmetauscher |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR786832A (fr) * | 1934-05-29 | 1935-09-10 | Perfectionnements apportés aux échangeurs de température | |
FR1217881A (fr) * | 1958-12-11 | 1960-05-06 | Surface d'échange thermique à grand développement et procédé pour son exécution et sa mise en oeuvre | |
FR2152349B1 (de) * | 1971-09-06 | 1974-03-29 | Dallet Jean | |
JPS58160799A (ja) * | 1982-03-19 | 1983-09-24 | Toshiba Corp | 熱交換器 |
JPS60120194A (ja) * | 1983-11-30 | 1985-06-27 | Shimizu Constr Co Ltd | 熱交換器用管 |
JPH0612217B2 (ja) * | 1985-04-30 | 1994-02-16 | 日本電装株式会社 | アルミニウム製熱交換器およびその製法 |
JPH08110186A (ja) * | 1994-10-12 | 1996-04-30 | Yasuoka:Kk | 冷却用螺旋管とその製造方法及びその螺旋管を用いた冷却装置 |
IT238834Y1 (it) * | 1995-02-14 | 2000-11-15 | Zanussi Grandi Impianti Spa | Tubo deformabile a superficie interna di sezioneintermittentemente variabile |
-
2000
- 2000-10-06 DE DE10049987A patent/DE10049987A1/de not_active Withdrawn
-
2001
- 2001-10-02 EP EP01123619A patent/EP1195572B1/de not_active Expired - Lifetime
- 2001-10-02 AT AT01123619T patent/ATE254748T1/de active
- 2001-10-02 DE DE50100991T patent/DE50100991D1/de not_active Expired - Lifetime
- 2001-10-02 ES ES01123619T patent/ES2178981T1/es active Pending
Also Published As
Publication number | Publication date |
---|---|
EP1195572A2 (de) | 2002-04-10 |
DE10049987A1 (de) | 2002-04-11 |
ES2178981T1 (es) | 2003-01-16 |
ATE254748T1 (de) | 2003-12-15 |
EP1195572A3 (de) | 2002-10-16 |
DE50100991D1 (de) | 2003-12-24 |
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