EP0647822B1 - Lamellenwärmetauscher, insbesondere als Ölkühler benutzt - Google Patents

Lamellenwärmetauscher, insbesondere als Ölkühler benutzt Download PDF

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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
Application number
EP94202948A
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English (en)
French (fr)
Other versions
EP0647822A1 (de
Inventor
Hélène Gire
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Thermique Moteur SA
Original Assignee
Valeo Thermique Moteur SA
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Filing date
Publication date
Application filed by Valeo Thermique Moteur SA filed Critical Valeo Thermique Moteur SA
Publication of EP0647822A1 publication Critical patent/EP0647822A1/de
Application granted granted Critical
Publication of EP0647822B1 publication Critical patent/EP0647822B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (7)

  1. Lamellenwärmetauscher, der einen Wärmeaustausch zwischen einem ersten Fluid, beispielsweise einem zu kühlenden Öl, und einem zweiten Fluid, beispielsweise einer Kühlflüssigkeit, herbeiführen kann, umfassend:
    ein Gehäuse (12), das mit einem Einlaßstutzen (26) und mit einem Auslaßstutzen (28) für das zweite Fluid versehen ist;
    eine Aneinanderschichtung von Platten (30), die paarweise (30-1, 30-2) und abwechselnd im Innern des Gehäuses um ein zentrales Rohr (32) herum entlang einer Schichtungsrichtung XX angeordnet sind, so daß die Platten ein und desselben Paars eine zwischen ihnen liegende Umlauflamelle (42) für das erste Fluid definieren und die Plattenpaare zwischen ihnen und im Innern des Gehäuses Umlauflamellen (52) für das zweite Fluid definieren, die miteinander in Verbindung stehen, und
    Verbindungsmittel (44, 48), die den Umlauf des ersten Fluids zwischen den aufeinanderfolgenden Paaren von einem Einlaß (58) des ersten Fluids bis zu einem Auslaß (32) des ersten Fluids ermöglichen können;
    dadurch gekennzeichnet, daß jedes Plattenpaar eine erste Platte (30-1) und eine zweite Platte (30-2) umfaßt, die jeweils mit einem ersten inneren zylindrischen Bund (34-1) und mit einem zweiten inneren zylindrischen Bund (34-2) versehen sind, die das zentrale Rohr (32) umgeben, sich parallel zur Schichtungsrichtung XX erstrecken und sich gegenseitig überdecken.
  2. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß die erste Platte (30-1) eine allgemein ebene ringförmige Fläche (36-1) besitzt, die sich direkt an den ersten Bund (34-1) anschließt, während die zweite Platte (30-2) eine allgemein ebene ringförmige Fläche (36-2) besitzt, die sich an den zweiten Bund (34-2) über einen überstehenden ringförmigen Teil (38) anschließt, der mit der ebenen ringförmigen Fläche (36-1) der ersten Platte (30-1) eines benachbarten Plattenpaars in Kontakt kommen kann, um eine dichte Verbindung zu bilden.
  3. Wärmetauscher nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß sich der erste Bund (34-1) zwischen dem zentralen Rohr (32) und dem zweiten Bund (34-2) erstreckt.
  4. Wärmetauscher nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die erste Platte (30-1) und die zweite Platte (30-2) mit einer ersten äußeren kreisförmigen Randleiste (40-1) und mit einer zweiten äußeren kreisförmigen Randleiste (40-2) versehen sind, die in der Nähe des Gehäuses angeordnet sind und sich gegenseitig überdecken.
  5. Wärmetauscher nach Anspruch 4, dadurch gekennzeichnet, daß sich die erste kreisförmige Randleiste (40-1) zwischen der zweiten kreisförmigen Randleiste (40-2) und dem Gehäuse (12) erstreckt.
  6. Wärmetauscher nach Anspruch 4, dadurch gekennzeichnet, daß sich die zweite äußere kreisförmige Randleiste (40-2) zwischen der ersten äußeren kreisförmigen Randleiste (40-1) und dem Gehäuse (12) erstreckt.
  7. Wärmetauscher nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß die erste äußere kreisförmige Randleiste (40-1) und die zweite äußere kreisförmige Randleiste (40-2) beide eingerollte Randleisten sind.
EP94202948A 1993-10-12 1994-10-07 Lamellenwärmetauscher, insbesondere als Ölkühler benutzt Expired - Lifetime EP0647822B1 (de)

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 (de) 1995-04-12
EP0647822B1 true EP0647822B1 (de) 1998-07-15

Family

ID=9451751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94202948A Expired - Lifetime EP0647822B1 (de) 1993-10-12 1994-10-07 Lamellenwärmetauscher, insbesondere als Ölkühler benutzt

Country Status (7)

Country Link
US (1) US5588485A (de)
EP (1) EP0647822B1 (de)
KR (1) KR950012023A (de)
BR (1) BR9404068A (de)
DE (1) DE69411656T2 (de)
ES (1) ES2119067T3 (de)
FR (1) FR2711234B1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
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
US7306030B2 (en) * 2005-04-20 2007-12-11 Dana Canada Corporation Snap-in baffle insert for fluid devices
US20060237184A1 (en) * 2005-04-20 2006-10-26 Yuri Peric Tubular flapper valves
US7318451B2 (en) * 2005-04-20 2008-01-15 Dana Canada Corporation Flapper valves with spring tabs
US20060237079A1 (en) * 2005-04-20 2006-10-26 Cheadle Brian E Self-riveting flapper valves
US7222641B2 (en) * 2005-04-20 2007-05-29 Dana Canada Corporation Snap-in flapper valve assembly
US7828014B2 (en) * 2005-04-20 2010-11-09 Dana Canada Corporation Self-riveting flapper valves
US7735520B2 (en) * 2005-04-20 2010-06-15 Dana Canada Corporation Tubular flapper valves
US7644732B2 (en) * 2005-04-20 2010-01-12 Dana Canada Corporation Slide-in flapper valves
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
DE69411656T2 (de) 1998-11-05
FR2711234B1 (fr) 1995-11-24
ES2119067T3 (es) 1998-10-01
DE69411656D1 (de) 1998-08-20
US5588485A (en) 1996-12-31
FR2711234A1 (fr) 1995-04-21
EP0647822A1 (de) 1995-04-12
BR9404068A (pt) 1995-06-13
KR950012023A (ko) 1995-05-16

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