EP0647822B1 - Echangeur de chaleur à lames utile notamment comme refroidisseur d'huile - Google Patents
Echangeur de chaleur à lames utile notamment comme refroidisseur d'huile Download PDFInfo
- Publication number
- EP0647822B1 EP0647822B1 EP94202948A EP94202948A EP0647822B1 EP 0647822 B1 EP0647822 B1 EP 0647822B1 EP 94202948 A EP94202948 A EP 94202948A EP 94202948 A EP94202948 A EP 94202948A EP 0647822 B1 EP0647822 B1 EP 0647822B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- plate
- heat exchanger
- circular
- plates
- 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
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0012—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the apparatus having an annular form
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2230/00—Sealing means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S165/00—Heat exchange
- Y10S165/916—Oil cooler
Definitions
- the invention relates to a clean plate heat exchanger to allow a heat exchange between two fluids and can be used in particular for cooling lubricating oil, i.e. engine oil and / or oil from the gearbox, from a vehicle automobile.
- cooling lubricating oil i.e. engine oil and / or oil from the gearbox
- the plates have the general shape of a disc which usually presents a circular inner lip and a peripheral lip circular, said lips extending in a perpendicular plane to the stacking direction. So when the lips counterparts of two adjacent plates, part of a same pair, are joined together, for example by brazing, these two plates define an annular blade for the circulation of the first fluid, for example oil.
- each plate has two openings diametrically opposed passage, namely an opening inlet and outlet opening, each opening being bordered by a lip capable of being joined so tight to a lip homologous to an adjacent plate.
- Such heat exchangers are used in particular for cooling the lubricating oil from an engine block.
- a threaded pin used, on the one hand, for fixing the exchanger heat on the engine block and, on the other hand, to the fixing an oil filter on the heat exchanger.
- the tube hollow center then serves to return the oil to the block motor, either directly in the tube or via of the threaded axis which is then made hollow.
- the oil passes directly through the exchanger from the entrance to the bypass, passing through the plate entry openings, for direct access to the filter and return to the engine through the tube or central axis, the oil then not being cooled.
- the oil is distributed in each blade through the plate entry openings and it leaves each blade through the outlet openings of the plates to reach towards a passage communicating with the filter, the return to the engine being carried out by the conduit or the central axis, the oil then being cooled by heat exchange with the cooling liquid.
- this assembly method reduces the exchange surface useful thermal of each plate.
- the seal between the first and the second fluid is ensured, on the one hand, thanks to the central tube and, on the other part, thanks to the contact of two plane surfaces formed in relief on the two adjacent plates of two pairs different. Furthermore, in the event of an exchanger failure heat, there may be a leak leading to mixing the first fluid with the second fluid.
- the object of the invention is in particular to overcome the drawbacks cited above.
- each pair of plates comprises a first plate and a second plate provided respectively a first internal cylindrical collar and a second inner cylindrical collar surrounding the central tube, extend parallel to the stacking direction and are overlap each other.
- the first plate has a generally planar annular face connecting directly with the first collar
- the second plate has a generally planar annular face connecting with the second collar via a clean overhanging annular part to come into contact with the flat annular face of the first plate of a pair of adjacent plates, to form a tight junction
- This junction is created by the contact due to the stacking of two flat surfaces extending perpendicular to the stacking direction.
- the fluids flowing through and other from this junction are the first fluid and the second fluid, since the contact surfaces are completely separate from each other.
- the first collar extends between the central tube and the second collar.
- the invention also provides that the first plate and the second plate are respectively provided with a first rim outer circular and a second circular rim exterior arranged near the housing and overlapping each other.
- the first flange outer circular extends between the second circular rim outside and the housing.
- the second flange outer circular extends between the first circular rim outside and the housing.
- the first outer circular rim and the second circular rim outside are advantageously both coiled edges.
- Such an assembly method increases the covering surface between the two edges to guarantee a better seal between the first fluid flowing between the two plates of the same pair and the second fluid circulating at the periphery plates.
- FIGs 1 and 2 represent a plate heat exchanger used, in the example, for cooling engine oil in a vehicle automobile.
- the exchanger 10 comprises a housing 12 having an envelope wall defined by parallel generators to an axis XX.
- This envelope wall ( Figure 2) includes a semi-cylindrical wall 14 connecting to two flat walls parallels 16 and 18 which connect themselves, respectively by rounded edges 20 and 22, to a flat wall 24 perpendicular to the walls 16 and 18. From the wall 24 extend two pipes 26 and 28 respectively serving to the inlet and outlet of the coolant, by example of glycol water.
- the exchanger further comprises a stack of plates 30 arranged in pairs and alternately inside the housing around a central tube 32 defining a direction stacking XX.
- the plates 30, also called half-plates, are generally similar and each has the general shape of a disc annular suitable for surrounding the central tube 32 and for being housed inside the housing 12.
- each pair of plates includes a first plate 30-1 and a second plate 30-2 respectively provided with a first collar internal cylindrical 34-1 and a second cylindrical collar interior 34-2 which surround the central tube 32, extend parallel to the stacking direction XX and overlap partially.
- the first plate 30-1 has an annular face generally plane 36-1 connecting directly with the first collar 34-1, while the second plate 30-2 has a generally planar annular face 36-2 connecting with the second collar 34-2 via an annular part overhanging 38 clean to come into contact with the face planar annular 36-1 of the first plate 30-1 of a pair adjacent plates to form a tight junction.
- the first collar 34-1 extends between the central tube 32 and the second collar 34-2.
- first plate 30-1 and the second plate 30-2 are provided respectively a first outer circular flange 40-1 and a second outer circular ledge 40-2 arranged near the housing and overlapping each other.
- the first outer circular flange 40-1 extends between the second circular flange 40-2 and the housing 12.
- the second edge outer circular 40-2 extends between the first flange outer circular 40-1 and the housing 12.
- the two circular edges 40-1 and 40-2 are all two of the curled edges.
- each blade has two diametrically openings opposite, namely an entrance opening 44 limited by a peripheral lip 46 and a limited outlet opening 48 by a peripheral lip 50 ( Figure 2).
- Each of the lips 46 and 50 is capable of being sealed a homologous opening of an adjacent plate.
- Plates 30 (plates 30-1 and 30-2 arranged in pairs) are joined together preferably by soldering and the battery plates is inserted in the housing around the tube central 32 of axis XX.
- the heat exchanger 10 further comprises an annular bottom 56 which has an opening 58 situated in alignment with the openings 44 and constituting the oil inlet of the exchanger.
- the bottom 56 is held by a seal holder cup 60 disposed between the housing envelope and the central tube 48.
- the heat exchanger includes a seal holder cup 62 connected to the housing shell and to the central tube 32.
- the cup 62 has a bypass 64 located in the axial alignment of the openings 44 and controlled by a valve 66, as well as a passage opening 68 arranged in the alignment of the openings 44.
- the heat exchanger 10 is intended to be fixed on a block engine 70 and to receive an oil filter 72, fixing the exchanger on the engine block and the filter attachment oil on the exchanger, for example by means of a hollow threaded pin as described in document FR-A-2 214 873 already cited.
- the exchanger 10 operates in the following manner. When the oil is cold and viscous, it enters the exchanger 10 through opening 58 and, under the effect of viscosity high oil, resulting in increased pressure which causes the valve 66 to open. The oil flows through directly the exchanger from input 58 to bypass 64 through the openings 44 formed in the plates 30. The oil passes through then the filter and returns to the engine block through the tube central 32.
- valve 66 When the oil is hot and fluid, the valve 66 is closed. The oil is then distributed in each annular blade 42 through the openings 44 and it comes out of each blade through the openings 48 to reach opening 68. Oil then crosses the filter and returns to the engine block via the central tube 32.
- interior collars 34-1 and 34-2 provide oil / oil tightness that does not have a character critical.
- the assembly between the outer circular flanges 40-1 and 40-2 is obtained by overlapping edges on a significant distance and therefore ensuring a seal between oil and coolant.
Description
- un boítier muni d'une tubulure d'entrée et d'une tubulure de sortie pour le second fluide,
- un empilage de plaques disposées par paires et de façon alternée à l'intérieur du boítier, autour d'un tube central définissant une direction d'empilage, de sorte que les plaques d'une même paire définissent entre elles une lame de circulation pour le premier fluide et que les paires de plaques définissent à leur périphérie, et à l'intérieur du boítier, des lames de circulation pour le second fluide qui communiquent entre elles, et
- des moyens de communication propres à permettre la circulation du premier fluide entre les paires successives de plaques depuis une entrée du premier fluide jusqu'à une sortie du premier fluide.
- la figure 1 est une vue en coupe axiale d'un échangeur de chaleur à lames selon l'invention, la coupe étant réalisée selon la ligne I-I de la figure 2;
- la figure 2 est une vue en coupe selon la ligne II-II de la figure 1;
- la figure 3 est une vue en coupe partielle, et à échelle agrandie, selon la ligne III-III de la figure 2; et
- la figure 4 est une vue analogue à la figure 3 dans une variante de réalisation.
Claims (7)
- Echangeur de chaleur à lames, propre à réaliser un échange thermique entre un premier fluide, par exemple une huile à refroidir, et un deuxième fluide, par exemple un liquide de refroidissement, comprenant :un boítier (12) muni d'une tubulure d'entrée (26) et d'une tubulure de sortie (28) pour le second fluide;un empilage de plaques (30) disposées par paires (30-1, 30-2) et de façon alternée à l'intérieur du boítier, autour d'un tube central (32) suivant une direction d'empilage XX, de sorte que les plaques d'une même paire définissent entre elles une lame de circulation (42) pour le premier fluide et que les paires de plaques définissent entre elles et à l'intérieur du boítier des lames (52) de circulation pour le second fluide qui communiquent entre elles; etdes moyens de communication (44,48) propres à permettre la circulation du premier fluide entre les paires successives depuis une entrée (58) du premier fluide jusqu'à une sortie (32) du premier fluide;
- Echangeur de chaleur selon la revendication 1, caractérisé en ce que la première plaque (30-1) possède une face annulaire généralement plane (36-1) se raccordant directement avec le premier collet (34-1), tandis que la seconde plaque (30-2) possède une face annulaire généralement plane (36-2) se raccordant avec le second collet (34-2) par l'intermédiaire d'une partie annulaire en surplomb (38) propre à venir en contact avec la face annulaire plane (36-1) de la première plaque (30-1) d'une paire adjacente pour former une jonction étanche.
- Echangeur de chaleur selon l'une des revendications 1 et 2, caractérisé en ce que le premier collet (34-1) s'étend entre le tube central (32) et le second collet (34-2).
- Echangeur de chaleur selon l'une des revendications 1 à 3, caractérisé en ce que la première plaque (30-1) et la seconde plaque (30-2) sont munies respectivement d'un premier rebord circulaire extérieur (40-1) et d'un second rebord circulaire extérieur (40-2) disposés près du boítier et se recouvrant mutuellement.
- Echangeur de chaleur selon la revendication 4, caractérisé en ce que le premier rebord circulaire (40-1) s'étend entre le second rebord circulaire (40-2) et le boítier (12).
- Echangeur de chaleur selon la revendication 4, caractérisé en ce que le second rebord circulaire extérieur (40-2) s'étend entre le premier rebord circulaire extérieur (40-1) et le boítier (12).
- Echangeur de chaleur selon l'une des revendications 4 à 6, caractérisé en ce que le premier rebord circulaire extérieur (40-1) et le second rebord circulaire extérieur (40-2) sont tous deux des rebords enroulés.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9312133 | 1993-10-12 | ||
FR9312133A FR2711234B1 (fr) | 1993-10-12 | 1993-10-12 | Echangeur de chaleur à lames utile notamment comme refroidisseur d'huile. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0647822A1 EP0647822A1 (fr) | 1995-04-12 |
EP0647822B1 true EP0647822B1 (fr) | 1998-07-15 |
Family
ID=9451751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94202948A Expired - Lifetime EP0647822B1 (fr) | 1993-10-12 | 1994-10-07 | Echangeur de chaleur à lames utile notamment comme refroidisseur d'huile |
Country Status (7)
Country | Link |
---|---|
US (1) | US5588485A (fr) |
EP (1) | EP0647822B1 (fr) |
KR (1) | KR950012023A (fr) |
BR (1) | BR9404068A (fr) |
DE (1) | DE69411656T2 (fr) |
ES (1) | ES2119067T3 (fr) |
FR (1) | FR2711234B1 (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2772831B1 (fr) * | 1997-12-23 | 2000-03-03 | Valeo Thermique Moteur Sa | Dispositif de refroidissement d'huile a echangeur de chaleur huile/eau pour vehicule automobile |
US7735520B2 (en) * | 2005-04-20 | 2010-06-15 | Dana Canada Corporation | Tubular flapper valves |
US7318451B2 (en) * | 2005-04-20 | 2008-01-15 | Dana Canada Corporation | Flapper valves with spring tabs |
US7306030B2 (en) * | 2005-04-20 | 2007-12-11 | Dana Canada Corporation | Snap-in baffle insert for fluid devices |
US20060237079A1 (en) * | 2005-04-20 | 2006-10-26 | Cheadle Brian E | Self-riveting flapper valves |
US20060237184A1 (en) * | 2005-04-20 | 2006-10-26 | Yuri Peric | Tubular flapper valves |
US7644732B2 (en) * | 2005-04-20 | 2010-01-12 | Dana Canada Corporation | Slide-in flapper valves |
US7828014B2 (en) * | 2005-04-20 | 2010-11-09 | Dana Canada Corporation | Self-riveting flapper valves |
US7222641B2 (en) * | 2005-04-20 | 2007-05-29 | Dana Canada Corporation | Snap-in flapper valve assembly |
AT8644U1 (de) * | 2005-07-15 | 2006-10-15 | Pustelnik Philipp Dipl Ing | Ölkühler |
DE102005041036A1 (de) * | 2005-08-25 | 2007-03-01 | Joma-Polytec Kunststofftechnik Gmbh | Wärmetauscher, insbesondere Ölkühler für eine Verbrennungsmaschine |
DE102005048294A1 (de) † | 2005-10-08 | 2007-04-12 | Modine Manufacturing Co., Racine | Gelöteter Wärmetauscher und Herstellungsverfahren |
DE102008027424A1 (de) * | 2008-06-10 | 2009-12-17 | Hydac S.A. | Fluidkühlvorrichtung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4669532A (en) * | 1984-04-23 | 1987-06-02 | Kabushiki Kaisha Tsuchiya Seisakusho | Heat exchanger with temperature responsive bypass |
JPH073315B2 (ja) * | 1985-06-25 | 1995-01-18 | 日本電装株式会社 | 熱交換器 |
JPH0240426B2 (ja) * | 1988-03-17 | 1990-09-11 | Tsucha Seisakusho Kk | Oirukuuranoeremento |
JP2521328Y2 (ja) * | 1990-08-06 | 1996-12-25 | カルソニック株式会社 | 自動変速機用オイルクーラ |
-
1993
- 1993-10-12 FR FR9312133A patent/FR2711234B1/fr not_active Expired - Fee Related
-
1994
- 1994-10-04 US US08/317,468 patent/US5588485A/en not_active Expired - Lifetime
- 1994-10-07 DE DE69411656T patent/DE69411656T2/de not_active Expired - Lifetime
- 1994-10-07 ES ES94202948T patent/ES2119067T3/es not_active Expired - Lifetime
- 1994-10-07 EP EP94202948A patent/EP0647822B1/fr not_active Expired - Lifetime
- 1994-10-11 BR BR9404068A patent/BR9404068A/pt not_active Application Discontinuation
- 1994-10-11 KR KR1019940025934A patent/KR950012023A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US5588485A (en) | 1996-12-31 |
BR9404068A (pt) | 1995-06-13 |
FR2711234B1 (fr) | 1995-11-24 |
EP0647822A1 (fr) | 1995-04-12 |
KR950012023A (ko) | 1995-05-16 |
ES2119067T3 (es) | 1998-10-01 |
DE69411656D1 (de) | 1998-08-20 |
FR2711234A1 (fr) | 1995-04-21 |
DE69411656T2 (de) | 1998-11-05 |
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