WO1998050746A1 - Zickzacklamelle als verrippung von flachrohrwärmetauschern bei kraftfahrzeugen - Google Patents
Zickzacklamelle als verrippung von flachrohrwärmetauschern bei kraftfahrzeugen Download PDFInfo
- Publication number
- WO1998050746A1 WO1998050746A1 PCT/EP1998/002639 EP9802639W WO9850746A1 WO 1998050746 A1 WO1998050746 A1 WO 1998050746A1 EP 9802639 W EP9802639 W EP 9802639W WO 9850746 A1 WO9850746 A1 WO 9850746A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- zigzag
- strips
- leg
- zigzag lamella
- lamella
- Prior art date
Links
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
- F28F1/126—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 consisting of zig-zag shaped fins
- F28F1/128—Fins with openings, e.g. louvered fins
Definitions
- the invention relates to a zigzag lamella according to the preamble of claim 1.
- a zigzag lamella is known from US Pat. No. 5,511,610.
- the invention has for its object to make at least the outer heat transfer inexpensive in a simple design in a zigzag lamella.
- This object is achieved in a zigzag lamella with the features of the preamble of the characterizing part of claim 1 by the characterizing features thereof.
- Figure 1 is a partial perspective view of a block of flat tubes with ribbing by zigzag fins.
- FIG. 2 shows a sectional illustration in the direction of flow of the external heat exchange fluid through a block arrangement of the type according to FIG. 1, but with a larger number of strips shown;
- Fig. 3 is an enlarged partial view of Fig. 2; such as
- Fig. 4 shows a further enlarged front view in the flow direction of the outer flow medium on two adjacent legs of the same zigzag lamella in a type according to the preceding figures.
- the block of flat tubes 2 and zigzag fins 4 shown in detail in FIG. 1 is flowed into in a flat tube heat exchanger in motor vehicles by the outside air as external heat exchange fluid in the depth direction according to arrow 6.
- Such flat tube heat exchangers are used in particular in motor vehicle air conditioning systems as evaporators or condensers.
- the flat tubes 2 have a plurality of individual continuous channels 8 which follow one another in the width direction of the respective flat tube and which are each separated from one another by a stiffening web 10 of the flat tube.
- the channels five of which are only shown in FIG. 1 for example, are arranged one behind the other in the width direction or in the direction of the arrow 6 and run parallel to one another in the longitudinal direction of the respective flat tube parallel to its longitudinal edges 12.
- the zigzag fins 4 are sandwiched between the flat tubes 2 so that each has a zigzag fin 4 is nested between two adjacent flat tubes 2.
- a similar zigzag lamella 4 and an end plate lying on this outside can be arranged in a manner not shown on the outer surfaces of the two outer flat tubes 2 in the block of the flat tubes and zigzag fins of the flat tube heat exchanger.
- the flat tubes 2 are formed in particular by extrusion or in the conforming process or by folding sheet metal.
- the zigzag slats are in turn formed from sheet-like sheet metal.
- Hard-solderable aluminum or a hard-solderable aluminum alloy is preferably used, and the parts to be connected are expediently precoated with the hard solder in the connection area on at least one of the connection partners.
- each individual zigzag lamella 4 is composed of legs 14 adjoining one another in zigzag fashion, each of which extends between rounded vertices 16, which in turn are each soldered to a flat side of the adjacent flat tube.
- the distance between the legs 2z lying in the same connection plane to the same adjacent flat tube 2 is 2z, while the distance between the vertices which follow each other at the ends of each leg is 14 to the two different connection planes on two adjacent flat tubes z (cf. also FIG . 1).
- the width of the zigzag lamella 4 extends in the direction of arrow 6 of the flow direction of the outer heat exchange fluid, which is crossed by the flow direction of the inner heat exchange fluid in the channels 8.
- the width of the zigzag fins in the direction of arrow 6 usually also describes the dimension of the structural depth of the heat exchanger or the block of flat tubes 2 and zigzag fins 4 according to FIG. 1, it being customary for the zigzag fins to protruding area of the outer heat exchange fluid from the block slightly beyond the longitudinal edge 12 of the flat tube 2 located there, in order to be able to drain the trapped moisture more easily.
- the zigzag lamella is usually aligned with the longitudinal edge 12 of the flat tube located there.
- a sequence of strips 18 is issued, in the example of FIG. 1 a sequence of five strips 18, which are thus in The depth direction of the block of flat tubes 2 and zigzag fins 4 or the width direction of the respective flat tube 2 follow one another.
- one strip 18 is assigned to one of the five channels 12 in the adjacent flat tube, possibly adjacent as shown. A similar assignment can also be used for any other number of strips 18 and channels 12.
- the strips exhibited in the direction of arrow 6 in flat tube heat exchangers for motor vehicles each preferably have an extension length of 0.8 to 2 mm, so that with a realistic construction depth of such flat tube heat exchangers a significantly larger number of strips 18 over the width of the leg 14, i.e. in the direction of the arrow 6, is distributed as illustrated in FIG. 2, where sixteen strips are issued in the same direction instead of the five strips of FIG. 1. Because of the small dimensions in this direction, the groups of eight strips 18, which follow one another in the width direction, are connected to one another for stabilization when the zigzag lamellae 14 are clamped between the flat tubes via a central stiffening web 20 which is not shown.
- FIG. 2 and its detailed drawing in FIG. 3 show the profile in the sense of FIG. 4 adjacent legs 14 in the width direction of the respective leg 14, which in FIG the direction of arrow 6 and thus the flow direction of the outer heat exchange fluid follows.
- the degree of division as a result of flared strips 18 in the width direction according to arrow 6 is y and also a constant.
- the distance of the apex 16 in the same connection plane to a flat tube 2 is 2z according to FIG. 4, while the distance from vertices 16 successive in the width direction according to arrow 6, which come to rest on the facing flat sides of adjacent flat tubes 2, is half of it , so z is.
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)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9804885-6A BR9804885A (pt) | 1997-05-07 | 1998-05-05 | Lamela em zigue-zague, de preferência constituìda de alumìnio, ou de uma liga de alumìnio, como um aletamento intercalado entre tubos chatos de trocadores de calor em veìculos automotores. |
EP98929282A EP0929782A1 (de) | 1997-05-07 | 1998-05-05 | Zickzacklamelle als verrippung von flachrohrwärmetauschern bei kraftfahrzeugen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997119262 DE19719262C2 (de) | 1997-05-07 | 1997-05-07 | Zickzacklamelle als Verrippung von Flachrohrwärmetauschern bei Kraftfahrzeugen |
DE19719262.9 | 1997-05-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1998050746A1 true WO1998050746A1 (de) | 1998-11-12 |
WO1998050746B1 WO1998050746B1 (de) | 1999-01-14 |
Family
ID=7828870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1998/002639 WO1998050746A1 (de) | 1997-05-07 | 1998-05-05 | Zickzacklamelle als verrippung von flachrohrwärmetauschern bei kraftfahrzeugen |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0929782A1 (de) |
CN (1) | CN1228157A (de) |
BR (1) | BR9804885A (de) |
DE (1) | DE19719262C2 (de) |
WO (1) | WO1998050746A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11359867B2 (en) | 2018-11-07 | 2022-06-14 | Alfa Laval Corporate Ab | Heat transfer plate |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10202768A1 (de) * | 2002-01-25 | 2003-07-31 | Behr Gmbh & Co | Wärmeübertrager |
DE10360240B4 (de) * | 2003-08-21 | 2005-09-01 | Visteon Global Technologies, Inc., Dearborn | Rippe für Wärmeübertrager mit paralleler Schichtung von flachen Wärmeübertragerrohren |
DE202004013882U1 (de) * | 2004-09-03 | 2006-01-12 | Autokühler GmbH & Co. KG | Wärmeübertragungsbauteil und damit hergestellter Wärmeaustauscher |
FR2924491B1 (fr) * | 2007-12-04 | 2009-12-18 | Valeo Systemes Thermiques | Intercalaire ondule muni de persiennes pour echangeur de chaleur |
DE102016210159A1 (de) * | 2016-06-08 | 2017-12-14 | Mahle International Gmbh | Rippenelement für einen Wärmeübertrager |
DE102017217571A1 (de) * | 2017-10-04 | 2019-04-04 | Mahle International Gmbh | Wärmeübertrager |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3265127A (en) * | 1963-10-21 | 1966-08-09 | Ford Motor Co | Heat exchange element |
FR1521499A (fr) | 1967-03-07 | 1968-04-19 | Chausson Usines Sa | Ailette pour faisceau de radiateur à tubes et ailettes |
US4469168A (en) * | 1980-02-27 | 1984-09-04 | Hitachi, Ltd. | Fin assembly for heat exchangers |
GB2169694A (en) | 1985-01-15 | 1986-07-16 | Sanden Corp | Serpentine heat exchanger |
US4615384A (en) * | 1983-06-30 | 1986-10-07 | Nihon Radiator Co., Ltd. | Heat exchanger fin with louvers |
DE3131737C2 (de) | 1980-08-15 | 1988-05-11 | Hitachi, Ltd., Tokio/Tokyo, Jp | |
JPS63163788A (ja) * | 1986-12-26 | 1988-07-07 | Matsushita Refrig Co | 熱交換器 |
DE4009997A1 (de) * | 1989-03-31 | 1990-10-04 | Showa Aluminum Corp | Verdampfer |
EP0547309A1 (de) * | 1991-12-19 | 1993-06-23 | Behr GmbH & Co. | Wellrippe für Flachrohrwärmetauscher |
US5311935A (en) * | 1992-01-17 | 1994-05-17 | Nippondenso Co., Ltd. | Corrugated fin type heat exchanger |
US5511610A (en) | 1994-03-15 | 1996-04-30 | Behr Heat Transfer Systems | Off-set louvered heat exchanger fin and method for making same |
-
1997
- 1997-05-07 DE DE1997119262 patent/DE19719262C2/de not_active Expired - Fee Related
-
1998
- 1998-05-05 BR BR9804885-6A patent/BR9804885A/pt not_active Application Discontinuation
- 1998-05-05 WO PCT/EP1998/002639 patent/WO1998050746A1/de not_active Application Discontinuation
- 1998-05-05 CN CN 98800598 patent/CN1228157A/zh active Pending
- 1998-05-05 EP EP98929282A patent/EP0929782A1/de not_active Withdrawn
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3265127A (en) * | 1963-10-21 | 1966-08-09 | Ford Motor Co | Heat exchange element |
FR1521499A (fr) | 1967-03-07 | 1968-04-19 | Chausson Usines Sa | Ailette pour faisceau de radiateur à tubes et ailettes |
US4469168A (en) * | 1980-02-27 | 1984-09-04 | Hitachi, Ltd. | Fin assembly for heat exchangers |
DE3131737C2 (de) | 1980-08-15 | 1988-05-11 | Hitachi, Ltd., Tokio/Tokyo, Jp | |
US4615384A (en) * | 1983-06-30 | 1986-10-07 | Nihon Radiator Co., Ltd. | Heat exchanger fin with louvers |
GB2169694A (en) | 1985-01-15 | 1986-07-16 | Sanden Corp | Serpentine heat exchanger |
JPS63163788A (ja) * | 1986-12-26 | 1988-07-07 | Matsushita Refrig Co | 熱交換器 |
DE4009997A1 (de) * | 1989-03-31 | 1990-10-04 | Showa Aluminum Corp | Verdampfer |
EP0547309A1 (de) * | 1991-12-19 | 1993-06-23 | Behr GmbH & Co. | Wellrippe für Flachrohrwärmetauscher |
US5311935A (en) * | 1992-01-17 | 1994-05-17 | Nippondenso Co., Ltd. | Corrugated fin type heat exchanger |
US5511610A (en) | 1994-03-15 | 1996-04-30 | Behr Heat Transfer Systems | Off-set louvered heat exchanger fin and method for making same |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 012, no. 432 (M - 763) 15 November 1988 (1988-11-15) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11359867B2 (en) | 2018-11-07 | 2022-06-14 | Alfa Laval Corporate Ab | Heat transfer plate |
Also Published As
Publication number | Publication date |
---|---|
DE19719262C2 (de) | 2003-01-30 |
BR9804885A (pt) | 1999-08-31 |
EP0929782A1 (de) | 1999-07-21 |
CN1228157A (zh) | 1999-09-08 |
DE19719262A1 (de) | 1998-11-12 |
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