DE273441C - - Google Patents
Info
- Publication number
- DE273441C DE273441C DENDAT273441D DE273441DA DE273441C DE 273441 C DE273441 C DE 273441C DE NDAT273441 D DENDAT273441 D DE NDAT273441D DE 273441D A DE273441D A DE 273441DA DE 273441 C DE273441 C DE 273441C
- Authority
- DE
- Germany
- Prior art keywords
- lamellar
- strip
- bent
- cap
- rolling
- 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.)
- Active
Links
- 239000002184 metal Substances 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims 2
- 241000446313 Lamella Species 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 238000005476 soldering Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
- JVi 273441 KLASSE 7c. GRUPPE- JVi 273441 CLASS 7c. GROUP
ARTHUR SCHNEIDER in DRESDEN.ARTHUR SCHNEIDER in DRESDEN.
Patentiert im Deutschen Reiche vom 23. Juli 1912 ab.Patented in the German Empire on July 23, 1912.
Die Herstellung von Kühlerlamellen, insbesondere für Kraftfahrzeug- und Luftfahrzeugmotoren, erfolgt meistens derart, daß die beiden Lamellenwände einzeln aus dünnen Blechstreifen zwischen Walzen in die gewünschte Wellenoder Zickzackform, z. B. nach Fig. i, gebogen werden, wobei gleichzeitig die Ränder der Streifen (vgl. Fig. 2) so abgesetzt werden, daß durch Aufeinanderlegen zweier Streifen (Fig. 3) und Verlöten der Ränder die Lamelle gebildet wird.The production of radiator fins, especially for motor vehicle and aircraft engines, usually takes place in such a way that the two lamellar walls are individually made of thin sheet metal strips between rollers in the desired wave or zigzag shape, e.g. B. after Fig. I, bent are, at the same time the edges of the strips (see. Fig. 2) are offset so that the lamella is formed by laying two strips on top of one another (Fig. 3) and soldering the edges will.
Die Herstellung einer guten Verlötung bedingt hierbei, daß die beiden zu vereinigenden Streifen mit besonderer Hilfsvorrichtung gegeneinandergepreßt werden, jedoch ist auch dann noch nicht ausreichende Gewähr geboten, daß die Lötung längs der Randlinien gleichmäßig und ohne Fehlstellen erfolgt. Außerdem werden die Lötnähte im Betrieb, insbesondere durch die ständigen Erschütterungen des Fahrzeuges, stark beansprucht und daher leicht undicht.The production of a good soldering requires that the two be united Strips are pressed against each other with a special device, but is also then not yet given sufficient guarantee that the soldering along the edge lines evenly and without any defects. In addition, the soldered seams in operation, in particular due to the constant vibrations of the vehicle, heavily used and therefore light leaky.
Ferner ist ein Verfahren bekannt, nach dem Kühlerlamellen hergestellt werden, derart, daß ein Blechstreifen in der Mitte doppelt und an den Kanten einfach gefalzt und hierauf, mit einer Einlage versehen, durch ein Walzwerk profiliert wird (vgl. Fig. 4).Furthermore, a method is known by which the radiator fins are produced in such a way that a sheet metal strip in the middle double and at the edges simply folded and on top, with an insert is provided, is profiled by a rolling mill (see. Fig. 4).
Diesem Verfahren haftet aber der große Mangel an, daß das Material durch das wiederholte Falzen leicht verletzt wird. Außerdem ist die Kühlwirkung durch die große, durch die Höhe der Falze bedingte Wandstärke der Stirnfläche der Lamellen vermindert und der Durchflußquerschnitt um den Betrag der Falzhöhe verringert.This process, however, has the great deficiency that the material is repeated by it Folding is easily injured. In addition, the cooling effect is due to the large, through the height of the folds due to the wall thickness of the end face of the slats and reduced Flow cross-section reduced by the amount of the fold height.
4040
4545
Auch bei den nach diesem Verfahren hergestellten Lamellen müssen die offenen Kanten vor dem Verlöten gegeneinandergepreßt werden, um das Auseinanderfedern zu verhindern.The open edges of the lamellas produced using this method must also be be pressed against each other before soldering in order to prevent them from springing apart.
Vorliegende Erfindung beseitigt die Mängel.The present invention overcomes the shortcomings.
Ein Blechstreifen von der doppelten Breite der Lamelle wird unter Verwendung einer Einlage aus Pappe, Blech oder sonstigem Stoff, deren Dicke der Lichtweite und deren Breite der Breite des Wasserkanals entspricht, in der Mitte um 180 ° zusammengebogen (s. Fig. 5). Hierauf wird bei Lamellen von großer Lichtweite der umgebogene Lamellenstreifen mit der Einlage durch ein Walzwerk geführt, um die offenen Ränder α nach Fig. 6 abzusetzen, während bei Lamellen, deren Lichtweite ungefähr gleich der doppelten Stärke des verwendeten Materials ist, die überstehenden Kanten durch das Aufsetzen der Kappe (Verschlußstreifen) zum Aufeinanderliegen gebracht werden. Dieser Verschlußstreifen b wird in irgendeiner Weise zusammengebogen und auf die zusammengepreßten oder einander genäherten Kanten α des Lamellenkörpers geschoben (Fig. 7). Ist letzteres geschehen, wird der Lamellenkörper mit Kappe und Einlage durch ein Walzwerk geführt und dabei in die gewünschte Wellenform nach Fig. 1 gebracht. Hierauf wird die Kappe abgenommen, die Einlage durch Auseinanderziehen des Lamellenkörpers entfernt, die Kappe wieder aufgesetzt und mit dem Lamellenkörper verlötet.A sheet metal strip twice the width of the lamella is bent in the middle by 180 ° using an insert made of cardboard, sheet metal or other material, the thickness of which corresponds to the width of the light and the width of the width of the water channel (see Fig. 5). Then the bent lamellar strip with the insert is passed through a rolling mill in the case of lamellas with a large clear width, in order to set off the open edges α according to FIG Put on the cap (closure strip) are brought to rest on top of each other. This closure strip b is bent together in some way and pushed onto the compressed or approximated edges α of the lamellar body (FIG. 7). If the latter has happened, the lamellar body with cap and insert is passed through a rolling mill and brought into the desired wave shape according to FIG. 1. The cap is then removed, the insert is removed by pulling the lamellar body apart, the cap is put back on and soldered to the lamellar body.
Die Vorteile dieses Verfahrens bestehen darin, daß an der dem Luftstrome zugekehrten Stirnfläche der Lamelle die Stärke derselben nur gleich der Blechstärke des verwendeten Ma-The advantages of this method are that on the end face facing the air stream the thickness of the lamella is only equal to the sheet thickness of the material used
terials ist und somit die Kühlwirkung beträchtlich gesteigert ist, wozu auch noch der Umstand beiträgt, daß die wirksame Kühlfläche infolge des Wegfalls einer Löt- oder Falznaht bei gleicher Lamellenbreite größer ist als bei den bekannten Ausführungen. Ferner wird, und das ist besonders wichtig, durch das einfache Umbiegen um die Einlage und das Absetzen der Kanten das Material nur wenig beansprucht, so daß ein Verletzen desselben ausgeschlossen ist.terials and thus the cooling effect is considerably increased, including the fact contributes to the effective cooling surface as a result of the elimination of a soldered or folded seam with the same slat width is larger than in the known designs. Furthermore, and this is especially important by simply bending it around the insert and putting it down the edges of the material only slightly stressed, so that the same is impossible to injure.
Durch die aufgesetzte Kappe wird das Auseinanderfedern der Lamellenwände verhindert, so daß diese Aufgabe nicht mehr der Lötnaht zufällt und somit ein Undicht werden derselben ausgeschlossen ist.The attached cap prevents the lamellar walls from springing apart, so that this task no longer falls to the soldered seam and thus a leak becomes the same is excluded.
Außer der bedeutenden Verstärkung, die die Lamellen durch die aufgesetzte Kappe erhalten, und die gegen äußere Beschädigungen große Sicherheit bietet, ist noch die einfache Herstellung der Lamellen nach vorliegendem Verfahren hervorzuheben.In addition to the significant reinforcement that the lamellas receive from the attached cap, and the fact that it offers great security against external damage is its simple manufacture of the lamellas according to the present method.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE273441C true DE273441C (en) |
Family
ID=529896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT273441D Active DE273441C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE273441C (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE923363C (en) * | 1951-06-28 | 1955-02-10 | Theodor Winkels | Process for the manufacture of flat heating elements and products manufactured therefrom |
DE934644C (en) * | 1950-07-09 | 1955-11-03 | Walter Schoeler | Method and device for the production of thin-walled, dimensionally stable hollow bodies of elongated shape |
DE102006035210A1 (en) * | 2006-07-29 | 2008-01-31 | Modine Manufacturing Co., Racine | Heat exchanger tube comprises first thin sheet of material partially forming broad and narrow sides of tube body and partially enclosing an interior space, and second sheet of material partially forming fin brazed to tube body |
DE102006041270A1 (en) * | 2006-09-02 | 2008-03-06 | Modine Manufacturing Co., Racine | Heat exchanger tube comprises first thin sheet of material partially forming broad and narrow sides of tube body and partially enclosing an interior space, and second sheet of material partially forming fin brazed to tube body |
US7921559B2 (en) | 2006-01-19 | 2011-04-12 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8091621B2 (en) | 2006-01-19 | 2012-01-10 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8191258B2 (en) | 2006-01-19 | 2012-06-05 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8281489B2 (en) | 2006-01-19 | 2012-10-09 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
JP2012530731A (en) * | 2009-06-22 | 2012-12-06 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング | Alkoxy-thienopyrimidines as TGF-β receptor kinase modulators |
US8434227B2 (en) | 2006-01-19 | 2013-05-07 | Modine Manufacturing Company | Method of forming heat exchanger tubes |
US8438728B2 (en) | 2006-01-19 | 2013-05-14 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8683690B2 (en) | 2006-01-19 | 2014-04-01 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8726508B2 (en) | 2006-01-19 | 2014-05-20 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US9038267B2 (en) | 2010-06-10 | 2015-05-26 | Modine Manufacturing Company | Method of separating heat exchanger tubes and an apparatus for same |
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0
- DE DENDAT273441D patent/DE273441C/de active Active
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE934644C (en) * | 1950-07-09 | 1955-11-03 | Walter Schoeler | Method and device for the production of thin-walled, dimensionally stable hollow bodies of elongated shape |
DE923363C (en) * | 1951-06-28 | 1955-02-10 | Theodor Winkels | Process for the manufacture of flat heating elements and products manufactured therefrom |
US8434227B2 (en) | 2006-01-19 | 2013-05-07 | Modine Manufacturing Company | Method of forming heat exchanger tubes |
US7921559B2 (en) | 2006-01-19 | 2011-04-12 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8091621B2 (en) | 2006-01-19 | 2012-01-10 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8191258B2 (en) | 2006-01-19 | 2012-06-05 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8281489B2 (en) | 2006-01-19 | 2012-10-09 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8438728B2 (en) | 2006-01-19 | 2013-05-14 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8683690B2 (en) | 2006-01-19 | 2014-04-01 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
US8726508B2 (en) | 2006-01-19 | 2014-05-20 | Modine Manufacturing Company | Flat tube, flat tube heat exchanger, and method of manufacturing same |
DE102006035210A1 (en) * | 2006-07-29 | 2008-01-31 | Modine Manufacturing Co., Racine | Heat exchanger tube comprises first thin sheet of material partially forming broad and narrow sides of tube body and partially enclosing an interior space, and second sheet of material partially forming fin brazed to tube body |
DE102006035210B4 (en) * | 2006-07-29 | 2016-10-06 | Modine Manufacturing Co. | Flat heat exchanger tube and manufacturing process |
DE102006041270A1 (en) * | 2006-09-02 | 2008-03-06 | Modine Manufacturing Co., Racine | Heat exchanger tube comprises first thin sheet of material partially forming broad and narrow sides of tube body and partially enclosing an interior space, and second sheet of material partially forming fin brazed to tube body |
JP2012530731A (en) * | 2009-06-22 | 2012-12-06 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング | Alkoxy-thienopyrimidines as TGF-β receptor kinase modulators |
US9038267B2 (en) | 2010-06-10 | 2015-05-26 | Modine Manufacturing Company | Method of separating heat exchanger tubes and an apparatus for same |
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