EP3286415B1 - Refroidisseur d'huile - Google Patents

Refroidisseur d'huile Download PDF

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Publication number
EP3286415B1
EP3286415B1 EP16717371.5A EP16717371A EP3286415B1 EP 3286415 B1 EP3286415 B1 EP 3286415B1 EP 16717371 A EP16717371 A EP 16717371A EP 3286415 B1 EP3286415 B1 EP 3286415B1
Authority
EP
European Patent Office
Prior art keywords
thermostatic valve
valve housing
cover plate
pieces
oil cooler
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.)
Not-in-force
Application number
EP16717371.5A
Other languages
German (de)
English (en)
Other versions
EP3286415A1 (fr
Inventor
Stefan Schmidgall
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.)
Mahle International GmbH
Original Assignee
Mahle International GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP3286415A1 publication Critical patent/EP3286415A1/fr
Application granted granted Critical
Publication of EP3286415B1 publication Critical patent/EP3286415B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/002—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/005—Controlling temperature of lubricant
    • F01M5/007—Thermostatic control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/002—Cooling
    • F01M2005/004—Oil-cooled engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
    • F01M2011/031—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means characterised by mounting means
    • F01M2011/033—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means characterised by mounting means comprising coolers or heat exchangers

Definitions

  • the present invention relates to an oil cooler with at least two stacked in the stacking direction heat exchanger plates and a cover plate according to the preamble of claim 1.
  • the invention also relates to a method for producing such an oil cooler and a motor vehicle with such oil cooler.
  • a generic oil cooler with at least two stacked in the stacking direction heat exchanger plates and a cover plate is known, wherein between the cover plate and the adjacent heat exchanger plate, a fluid passage.
  • a thermostatic valve is provided, which is connected via its thermostatic valve housing fluid-transmitting manner with the fluid channel of the cover plate.
  • the present invention therefore deals with the problem of providing for an oil cooler of the generic type an improved or at least one alternative embodiment, by means of which in particular the oil cooler can be produced more economically.
  • the present invention is based on the general idea to produce a thermostatic valve housing made of a very good solderable material and connect it before the actual soldering with a heat exchanger block of an oil cooler, so that then the entire heat exchanger block are soldered reliably and tightly together with the thermostatic valve housing in a brazing furnace can. Subsequently, this can be controlled with only a single leak test.
  • the oil cooler according to the invention has in a known manner at least two stacked in the stacking direction heat exchanger plates and a cover plate. Between the cover plate and the adjacent heat exchanger plate extends a fluid channel, wherein the thermostatic valve via its thermostatic valve housing fluid-tight with the fluid channel of the cover plate connected is.
  • the cover plate now has two, in the direction of the thermostatic valve, inflated and thus protruding connecting pieces with a respective edge.
  • the thermostatic valve housing itself is formed of an aluminum profile, in particular of an aluminum extruded profile or a rolled aluminum profile, which is reworked separately and in particular even finished. Due to the embodiment of the thermostatic valve housing made of a material which is particularly suitable for extrusion or rolling, an aluminum alloy can be used, which is easily soldered.
  • the thermostatic valve housing additionally has two connecting pieces formed complementary to the connecting piece, which are mechanically fixed before the actual soldering in the cover plate side connecting piece.
  • the nozzle can be fixed in the cover plate-side connecting piece by means of a press fit, for example caulked or tumbled.
  • the thermostatic valve housing is soldered with its connection piece in the connecting piece of the cover plate, wherein this soldering takes place after fixing together with the soldering of the heat exchanger block in the soldering oven. Due to the mechanical fixation of the thermostat valve housing side nozzle in the cover plate side connection piece can also be dispensed with an additional required solder film, since the required Lotnach for tight soldering between the thermostatic valve housing and cover plate can be provided by the one-side solder-plated cover plate. With the oil cooler according to the invention, this can not only be made cheaper, because for example, separate sealing elements or a double seal test (once for the heat exchanger block separately and the other time in the assembled state) can be dispensed with, but also on a brazing foil. Also fasteners can be omitted in the oil cooler according to the invention, since a reliable fixation of the two components together can be ensured by the mechanical and material connection between the thermostatic valve housing and the heat exchanger block.
  • the thermostatic valve housing may also be formed from a reworked aluminum profile, between the cover plate and the thermostatic valve housing, however, an adapter plate is additionally arranged. This has two projecting in the direction of the thermostatic valve spigot with an edge, wherein the thermostatic valve housing has two complementary to the connecting piece formed nozzle, which are mechanically fixed in the adapter plate side connecting piece and wherein the thermostatic valve body is soldered with its neck in the connecting piece of the adapter plate. With the adapter plate, an increase in rigidity can be achieved.
  • the respective edge of the connecting piece has a conical inner contour, wherein it is additionally or alternatively provided that an outer contour of the connecting piece tapers towards a free end.
  • This can be provided, for example, in the manner of a chamfer.
  • Both such a taper / chamfer and the conical edge formed in the connecting piece facilitates, on the one hand, the insertion of the thermostatic valve-housing-side connecting piece into the cover-plate-side or adapter-plate-side connecting piece, as well as jamming or caulking of the connecting pieces into the connecting piece. With the methods mentioned can thus simplify the production and at the same time improve.
  • a solder plating is present anyway on the cover plate in order to be able to reliably solder it to the adjacent heat exchanger plate.
  • this solder plating is additionally used to be able to ensure a tight soldering between the cover plate side connecting piece and the thermostat valve housing side piece.
  • the adapter plate on its side facing away from the adjacent cover plate on a Lotplatt réelle is also used to be able to ensure a tight soldering between the cover plate side connecting piece and the thermostat valve housing side piece.
  • the present invention is further based on the general idea to provide a method for producing an oil cooler described above, in which first the thermostatic valve housing as Aluminiumstorpressvollprofil, for example, cuboid, is produced. The corresponding inner channels are then subsequently introduced into this aluminum extruded solid profile, for example by drilling, and the outer contours, in particular the connecting pieces, are created, for example by milling or laser cutting.
  • the steps described above can be summarized under the term reprocessing or finishing of the thermostatic valve housing.
  • an adapter plate is provided, at least two stacked in the stacking heat exchanger plates are covered with the cover plate and the adapter plate, before or after the thermostatic valve housing fixed with its two nozzles in the connection piece of the adapter plate, in particular caulked or tumbled, is. Subsequently, the heat exchanger plates, the cover plate, the adapter plate and the thermostatic valve body are soldered together.
  • Fig. 1 and 5 has an inventive oil cooler 1 at least two stacked in the stacking direction heat exchanger plates 2 and a cover 3 on.
  • the term of the oil cooler 1 used previously and below should also include other heat exchangers by means of which other fluids are cooled or tempered.
  • Such an oil cooler 1 is used for example in a commercial vehicle 14.
  • a thermostatic valve 5 which is connected via its thermostatic valve housing 6 fluid-transmitting manner to the fluid channel 4 of the cover plate 3 between the cover plate 3 and the adjacent heat exchanger plate.
  • the thermostatic valve housing 6 is now formed from a reworked aluminum profile, in particular from a reworked aluminum extruded profile or a rolled aluminum profile, and thereby produced from an aluminum alloy, which can be soldered in an optimum manner.
  • the thermostatic valve housing 6 is soldered via its socket 9 in the connecting piece 7 of the cover plate 3.
  • an adapter plate 15 is arranged, wherein the thermostatic valve housing 6 is soldered with its nozzle 9 in connection piece 16 of the adapter plate 15.
  • the adapter plate 15 has in this case two projecting in the direction of the thermostatic valve 5 connecting piece 16 with an edge 8, wherein the thermostatic valve housing 6 is mechanically fixed with its nozzle 9 in the adapter plate side connecting piece 16.
  • the adapter plate 15 is soldered to the cover plate 3, whereby in addition an increase in rigidity can be achieved.
  • the respective edge 8 of the connecting piece 7, 16 has a conical inner contour 10, in particular in the manner of a chamfer, in addition or alternatively, the nozzle 9 can taper towards a free end. Both the conical inner contour 10 and the tapered nozzle 9 can facilitate the insertion of the nozzle 9 in the connecting pieces 7, 16, as well as a fixing, in particular a caulking, the nozzle 9 in the connecting piece 7, 16.
  • the cover plate 3 has a Lotplatt ist 11, which can be dispensed with an additional Lotabeabe when soldering the thermostatic valve housing 6 with the cover 3.
  • the oil cooler 1 according to the invention is produced as follows:
  • the thermostatic valve housing 6 is made as an aluminum profile, in particular as an aluminum extruded profile, for example, the outer contours of the solid profile produced, in particular extruded or rolled thermostatic valve housing 6 in Fig. 3 is shown with broken line drawn. Subsequently, for example, inner channels 12 and the outer nozzle 9 or other components of the thermostatic valve housing 6 by reworking the aluminum full profile, for example by drilling, milling and / or grinding produced. For further production of the oil cooler 1 now at least two stacked in the stacking direction heat exchanger plates 2 are covered with the cover 3, wherein before or after the thermostatic valve housing 6 fixed with its two sockets 9 in the connecting piece 7 of the cover 3, in particular caulked or tumbled, is.
  • thermostatic valve body 6 cover plate 3 and heat exchanger plates 2 can now be soldered in a single step in a corresponding soldering oven.
  • the thermostatic valve housing 6 is soldered directly to the connecting piece 7 of the cover plate 3 without mechanical prefixing and without a nozzle 9.
  • an adapter plate 15 is provided, then at least two stacked in the stacking direction heat exchanger plates 2 are covered with the cover plate 3 and the adapter plate 15, before or after the thermostatic valve housing 6 fixed with its two nozzles 9 in the connecting piece 16 of the adapter plate 15, in particular caulked or staggered, will. Subsequently, the heat exchanger plates 2, the cover plate 3, the adapter plate 15 and the thermostatic valve housing 6 are soldered together. In this case, of course, no separately formed connecting piece 7 must be provided on the cover plate 3.
  • thermostatic valve housing 6 extruded aluminum alloy
  • a tight soldering between the thermostatic valve housing 6 and the cover plate 3 and the adapter plate 15 can be achieved without, for example, separate seals are required. Due to the common soldering now also only a single leak test sufficient, whereas in known from the prior art oil coolers always the tightness of the heat exchanger block and additionally the tightness of the heat exchanger block and attached thermostatic valve assembly must be checked.
  • thermostatic valve housing 6 such as a Wachsdehnelement, a spring and a valve body, this then by means of a not shown Cover is closed.
  • a lid can be screwed, for example, in the thermostatic valve housing 6, including, for example, a corresponding internal thread 13 is provided.
  • a soldering of the thermostatic valve housing 6 with the cover plate 3, possibly the adapter plate 15 and the heat exchanger plates 2 is usually carried out in the so-called CAB process (Controlled Atmosphere Brazing) or under vacuum, in particular, the first-mentioned soldering already used for many years in the production of Aluminium Sheübertragern and so that is proven.
  • CAB process Controlled Atmosphere Brazing
  • thermostatic valve housing 6 can be achieved a significant simplification of the assembly of the oil cooler 1, since the thermostatic valve housing 6 is first pre-fixed via its nozzle 9 in the connecting piece 7 or 16 and then soldered together with the oil cooler 1 in the soldering oven , In this way, in particular, a previously required additional sealing test can be dispensed with, as well as additional sealing elements or fastening means, for example screws, since the caulked and soldered to the cover plate 3 or to the adapter plate 15 and thermostat valve housing 6 is sufficiently fixed to the cover plate 3 or the adapter plate 15 ,

Claims (9)

  1. Refroidisseur d'huile (1)
    - avec au moins deux plaques d'échangeur de chaleur (2) empilées l'une sur l'autre dans la direction d'empilement et une plaque de couverture (3),
    - dans lequel un canal de fluide (4) s'étend entre la plaque de couverture (3) et la plaque d'échangeur de chaleur (2) voisine,
    - avec une vanne thermostatique (5), qui est reliée au canal de fluide (4) de manière à transporter du fluide par l'intermédiaire de son logement de vanne thermostatique (6),
    caractérisé en ce que
    - le logement de vanne thermostatique (6) est réalisé à partir d'un profilé d'aluminium usiné postérieurement,
    - la plaque de couverture (3) comporte deux embouts de raccordement (7) dépassant en direction de la vanne thermostatique (5) et munis d'un bord (8),
    - le logement de vanne thermostatique (6) comporte deux embouts (9) qui sont réalisés de manière complémentaire aux embouts de raccordement (7) et qui sont fixés mécaniquement dans les embouts de raccordement (7) du côté de la plaque de couverture,
    - le logement de vanne thermostatique (6) est brasé avec ses embouts (9) dans les embouts de raccordement (7) de la plaque de couverture (3),
    ou
    - une plaque d'adaptateur (15) est agencée entre la plaque de couverture (3) et le logement de vanne thermostatique (6),
    - la plaque d'adaptateur (15) comporte deux embouts de raccordement (16) dépassant en direction de la vanne thermostatique (5) et munis d'un bord (8),
    - le logement de vanne thermostatique (6) comporte deux embouts (9) qui sont réalisés de manière complémentaire aux embouts de raccordement (16) et qui sont fixés mécaniquement dans les embouts de raccordement (16) du côté de la plaque d'adaptateur,
    - le logement de vanne thermostatique (6) est brasé avec ses embouts (9) dans les embouts de raccordement (16) de la plaque d'adaptateur (15).
  2. Refroidisseur d'huile selon la revendication 1,
    caractérisé en ce que
    - le bord respectif (8) de l'embout de raccordement (7, 16) comporte un contour intérieur (10) conique, et/ou
    - un contour extérieur des embouts (9) se rétrécit en direction d'une extrémité libre.
  3. Refroidisseur d'huile selon l'une quelconque des revendications précédentes,
    caractérisé en
    ce que la plaque de couverture (3) comporte un placage brasé (11) au niveau de son côté proche de la plaque d'échangeur de chaleur (2) voisine.
  4. Refroidisseur d'huile selon l'une quelconque des revendications précédentes,
    caractérisé en
    ce que le logement de vanne thermostatique (6) est réalisé à partir d'un profilé filé en aluminium usiné postérieurement ou d'un profilé laminé.
  5. Refroidisseur d'huile selon l'une quelconque des revendications précédentes,
    caractérisé en
    ce que le logement de vanne thermostatique (6) est fixé avec ses embouts (9) par l'intermédiaire d'un ajustage serré dans les embouts de raccordement (7) côté plaque de couverture ou dans les embouts de raccordement (16) côté plaque d'adaptateur.
  6. Procédé de fabrication d'un refroidisseur d'huile (1) selon l'une quelconque des revendications précédentes, dans lequel
    - le logement de vanne thermostatique (6) est fabriqué à partir d'un profilé plein filé en aluminium ou d'un profilé plein laminé en aluminium,
    - le logement de vanne thermostatique (6) est usiné pour le finissage par alésage et/ou fraisage et/ou meulage et, ce faisant, aussi bien des canaux internes (12) que les embouts extérieurs (9) sont fabriqués,
    - au moins deux plaques d'échangeur de chaleur (2) empilées l'une sur l'autre dans la direction d'empilement sont recouvertes avec la plaque de couverture (3), le logement de vanne thermostatique (6) étant fixé, en particulier maté ou riveté par fluage radial, avant ou après, avec ses deux embouts (9) dans les embouts de raccordement (7) de la plaque de couverture (3), ou
    - au moins deux plaques d'échangeur de chaleur (2) empilées l'une sur l'autre dans la direction d'empilement sont recouvertes avec la plaque de couverture (3) et la plaque d'adaptateur (15), le logement de vanne thermostatique (6) étant fixé, en particulier maté ou riveté par fluage radial, avant ou après, avec ses deux embouts (9) dans les embouts de raccordement (16) de la plaque d'adaptateur (15),
    - les plaques d'échangeur de chaleur (2), la plaque de couverture (3), le cas échéant la plaque d'adaptateur (15) et le logement de vanne thermostatique (6) sont brasés ensemble.
  7. Procédé selon la revendication 6,
    caractérisé en
    ce qu'un brasage du refroidisseur d'huile (1) s'effectue suivant le procédé CAB (Controlled Atmosphère Brazing) ou sous vide.
  8. Procédé selon la revendication 6 ou 7,
    caractérisé en
    ce qu'au moins un élément de dilatation en cire et/ou un ressort ainsi qu'un logement de vanne sont intégrés dans le logement de vanne thermostatique (6) et celui-ci est fermé avec un couvercle.
  9. Véhicule, en particulier véhicule utilitaire (14), avec au moins un refroidisseur d'huile (1) selon l'une quelconque des revendications 1 à 5.
EP16717371.5A 2015-04-24 2016-04-19 Refroidisseur d'huile Not-in-force EP3286415B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015207593.1A DE102015207593A1 (de) 2015-04-24 2015-04-24 Ölkühler
PCT/EP2016/058619 WO2016169916A1 (fr) 2015-04-24 2016-04-19 Refroidisseur d'huile

Publications (2)

Publication Number Publication Date
EP3286415A1 EP3286415A1 (fr) 2018-02-28
EP3286415B1 true EP3286415B1 (fr) 2018-12-12

Family

ID=55794975

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16717371.5A Not-in-force EP3286415B1 (fr) 2015-04-24 2016-04-19 Refroidisseur d'huile

Country Status (4)

Country Link
US (1) US10107158B2 (fr)
EP (1) EP3286415B1 (fr)
DE (1) DE102015207593A1 (fr)
WO (1) WO2016169916A1 (fr)

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USD863360S1 (en) * 2016-07-22 2019-10-15 Improved Racing Products, LLC Engine oil line adapter block
US10900557B2 (en) 2018-11-13 2021-01-26 Dana Canada Corporation Heat exchanger assembly with integrated valve with pressure relief feature for hot and cold fluids
DE102020204271A1 (de) 2019-04-05 2020-10-08 Dana Canada Corporation Wärmetauscheranordnung mit integriertem Ventil und Druckbypass
CN113970268A (zh) * 2020-07-25 2022-01-25 浙江三花汽车零部件有限公司 一种换热组件及一种车辆热管理系统
CN112013711A (zh) * 2020-09-09 2020-12-01 浙江银轮机械股份有限公司 引流板及换热器
DE102022202732A1 (de) 2022-03-21 2023-09-21 Mahle International Gmbh Stapelscheiben-Wärmeübertrager für ein Thermomanagementmodul

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DE19750814C5 (de) * 1997-11-17 2005-08-18 Modine Manufacturing Co., Racine Wärmetauscher, insbesondere Ölkühler
FR2853725B1 (fr) 2003-04-09 2017-06-09 Valeo Thermique Moteur Sa Module de refroidissement a derivation, notamment pour vehicule automobile
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Also Published As

Publication number Publication date
WO2016169916A1 (fr) 2016-10-27
DE102015207593A1 (de) 2016-10-27
US20180163586A1 (en) 2018-06-14
US10107158B2 (en) 2018-10-23
EP3286415A1 (fr) 2018-02-28

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