EP0274321B1 - Ablenkplatte und deren Verwendung zum Schutz eines Schwimmers für Füllstandsanzeiger in einem Wärmetauscher - Google Patents

Ablenkplatte und deren Verwendung zum Schutz eines Schwimmers für Füllstandsanzeiger in einem Wärmetauscher Download PDF

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Publication number
EP0274321B1
EP0274321B1 EP19870402903 EP87402903A EP0274321B1 EP 0274321 B1 EP0274321 B1 EP 0274321B1 EP 19870402903 EP19870402903 EP 19870402903 EP 87402903 A EP87402903 A EP 87402903A EP 0274321 B1 EP0274321 B1 EP 0274321B1
Authority
EP
European Patent Office
Prior art keywords
pipe
wall
water box
deflector
chamber
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
EP19870402903
Other languages
English (en)
French (fr)
Other versions
EP0274321A1 (de
Inventor
Marco Broglio
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 SE
Original Assignee
Valeo SE
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 Valeo SE filed Critical Valeo SE
Publication of EP0274321A1 publication Critical patent/EP0274321A1/de
Application granted granted Critical
Publication of EP0274321B1 publication Critical patent/EP0274321B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/029—Expansion reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • F01P11/18—Indicating devices; Other safety devices concerning coolant pressure, coolant flow, or liquid-coolant level
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0231—Header boxes having an expansion chamber

Definitions

  • the invention relates to heat exchangers, in particular cooling radiators for motor vehicles, of the type comprising a water box and an expansion tank which is connected to it by a tube formed in one piece with at least a portion of the water box and at least part of the expansion tank, a float belonging to a water level indicator being disposed in the tubing.
  • the operation of the float may be disturbed by eddies and eddies caused by the circulation of fluids between the water box and the expansion tank.
  • the object of the invention is to avoid these disturbances.
  • a deflector intended to be put in place in the tubing, this deflector comprising means of positioning relative to said tubing, walls defining a chamber for receiving the float, means for establish a limited communication between said chamber on the one hand, means defining a degassing pipe for the passage of gas bubbles from the water box to the expansion tank and means defining a pipe for circulating fluid from the tank expansion to the water box.
  • the positioning means may comprise at least one wall bearing against a wall of the tube. They may comprise, alternatively or in addition, at least one projection coming into abutment against a shoulder of the water box and / or of the expansion vessel at the end of the tubing.
  • a projection can be elastically erased when the deflector is put in place.
  • the means defining a degassing pipe comprise a recess, towards the inside of the tube, of a wall of the chamber coming to bear against a wall of the tube.
  • the invention also provides that the means defining a fluid circulation pipe comprise a wall extending longitudinally in the tubing and dividing the interior space thereof into two subspaces, one of the subspaces containing the room and the other subspace containing the circulation pipe.
  • the radiator partially illustrated in Figure 1 for cooling the engine of a motor vehicle, comprises a water box 1 arranged vertically, associated with a collector 2 in the form of a plate also vertical having a multiplicity of holes in which s 'tightly engage the ends of tubes 3.
  • the tubes 3, arranged horizontally, are intended for the circulation of a cooling liquid.
  • the tubes 3 pass through fins 4 parallel to the manifold 2, with which they are in thermal contact.
  • an expansion tank 5 Above the radiator proper, and in particular above the water box 1, is an expansion tank 5.
  • the water box 1 and the expansion tank 5 are connected by a tube 7 formed of a single piece, for example by plastic injection, with the parts of the water box and the expansion tank to which it is connected.
  • a liquid level detector 8 comprising a float 9 disposed inside the tubing.
  • the detector is for example of the type comprising an electrical contact influenced by a magnet carried by the float, as described in the document FR-A 2 506 012.
  • the detector 8 is connected to an indicator placed on the dashboard of the vehicle.
  • a deflector 10 is placed in the tubing 7 to protect the float 9 against turbulence due to the exchange of fluids between the water box 1 and the expansion tank 5.
  • the deflector 10 comprises, as can be seen more particularly in FIG. 4, a wall portion 11 extending in the longitudinal direction of the tube 7, which is slightly curved, and lining the wall of the tube, shown in phantom and noted 12 in Figure 4, on a fraction of its perimeter.
  • Another wall portion 13 of the deflector also extending longitudinally with respect to the tube, divides the internal space of the latter into two subspaces 14 and 15.
  • the wall portions 11 and 13 are connected to each other in 16, the wall portion 11 having, opposite the junction 16, a free longitudinal edge 17.
  • the deflector 10 also has an upper wall 18 and a lower wall 19 separating the interior of the tubing from that of the expansion tank and that of the water box respectively.
  • the end walls 18 and 19 are connected to the portions of walls 11 and 13 to define, in cooperation with the latter and with the portion of the wall 12 of the pipe included between the free edge 17 of the wall portion 11 and the free edge 20 of the wall portion 13 a chamber 21 contained in the subspace 14 and in which the float 9 is located.
  • the chamber 21 is in limited communication with the expansion tank 5 and with the water box 1 by notches 22 and 23 formed in the walls 18 and 19 respectively.
  • the wall portion 11 of the deflector moves away from the wall 12 of the tube, over a small fraction of its circumferential extension, to form, between the wall portion 11 and the wall 12, a pipe lon gitudinal 24 connecting the water box and the expansion tank.
  • This pipe is divided in two by a reinforcing rib 25 depending on the wall 13 and the crest of which rests against the wall 12 of the tube, this rib extending longitudinally following the curvature of the tube.
  • the wall portion 11 of the deflector, the free edge 20 of the wall portion 13 and the crest of the rib 25, pressing against the wall 12 of the tube, ensure transverse positioning of the deflector in the latter.
  • the upper wall 18, which extends at the upper end of the tubing 7, is supported by an extension 26 on a shoulder 27 formed by the wall of the expansion vessel at right where it is connected to the tubing. This stop prevents the deflector from moving down.
  • a projection 28 extending downward the rib 25 is supported on the wall 29 of the water box 1 at the place where it is connected to the tubing. This stop prevents the deflector from moving up.
  • the projection 28 can be elastically erased to allow the introduction of the deflector from above.

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

Claims (6)

1. Wärmetauscher, insbesondere Kühlradiator für Kraftfahrzeuge, von der Art, die einen Wasserkasten (1) und ein Expansionsgefäß (5) enthält, welches daran über einen Stutzen (7) angeschlossen ist, der aus einem Stück mit wenigstens einem Teil des Wasserkastens (1) und wenigstens einem Teil des Expansionsgefäßes (5) besteht, wobei ein Schwimmer für einen Füllstandsanzeiger im Stutzen angeordnet ist, dadurch gekennzeichnet, daß eine Ablenkplatte (10) in den Stutzen (7) eingebaut ist und Wände vorhanden sind, die eine Kammer (21) zur Aufnahme des Schwimmers (9) begrenzen sowie die Positioniermittel im Verhältnis zum genannten Stutzen (7), wenigstens eine in mindestens einer der genannten Wände (18, 19) angebrachte Öffnung (22, 23) zur Herstellung einer begrenzten Verbindung zwischen der genannten Kammer (21) einerseits und dem Expansionsgefäß (5) und/oder dem Wasserkasten (1) andererseits, Mittel zur Begrenzung einer Entgasungsleitung (24) für den Übertritt von Gasblasen aus dem Wasserkasten (1) in das Expansionsgefäß (5) sowie Mittel zur Begrenzung einer Leitung für die Zirkulation von Flüssigkeit (15) aus dem Expansionsgefäß (5) in den Wasserkasten (1).
2. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß die Positioniermittel wenigstens eine Wand (11) enthalten, die auf einer Wand (12) des Stutzens aufliegt.
3. Wärmetauscher nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß die Positioniermittel wenigstens einen Vorsprung (26, 28) enthalten, der an einen Bund (27, 29) des Wasserkastens und/oder des Expansionsgefäßes am Ende des Stutzens anschlägt.
4. Wärmetauscher nach Anspruch 3, dadurch gekennzeichnet, daß ein derartiger Vorsprung (28) beim Einbau der Ablenkplatte elastisch nachgeben kann.
5. Wärmetauscher nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß die Mittel zur Begrenzung einer Entgasungsleitung (24) einen zum Innern des Stutzens hin gerichteten Absatz einer Wand (11) der Kammer enthalten, der auf einer Wand (12) des Stutzens aufliegt.
6. Wärmetauscher nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß die Mittel zur Begrenzung einer Leitung für die Zirkulation von Flüssigkeit (15) eine Wand (13) einschließen, die sich innerhalb des Stutzens in Längsrichtung erstreckt und den Innenraum derselben in zwei Unterräume (14, 15) unterteilt, wobei der eine der Unterräume die genannte Kammer (21) und der andere Unterraum die Leitung für die Zirkulation von Flüssigkeit enthält.
EP19870402903 1987-01-06 1987-12-18 Ablenkplatte und deren Verwendung zum Schutz eines Schwimmers für Füllstandsanzeiger in einem Wärmetauscher Expired - Lifetime EP0274321B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8700055 1987-01-06
FR8700055A FR2609329B1 (fr) 1987-01-06 1987-01-06 Deflecteur et son utilisation pour proteger un flotteur d'indicateur de niveau dans un echangeur de chaleur

Publications (2)

Publication Number Publication Date
EP0274321A1 EP0274321A1 (de) 1988-07-13
EP0274321B1 true EP0274321B1 (de) 1990-03-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870402903 Expired - Lifetime EP0274321B1 (de) 1987-01-06 1987-12-18 Ablenkplatte und deren Verwendung zum Schutz eines Schwimmers für Füllstandsanzeiger in einem Wärmetauscher

Country Status (4)

Country Link
EP (1) EP0274321B1 (de)
DE (1) DE3762003D1 (de)
ES (1) ES2013642B3 (de)
FR (1) FR2609329B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2661489B1 (fr) * 1990-04-26 1992-07-10 Valeo Thermique Moteur Sa Dispositif de boite a eau et de vase d'expansion pour un echangeur de chaleur, tel qu'un radiateur de refroidissement, et echangeur de chaleur comprenant ce dispositif.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3406751A (en) * 1967-06-30 1968-10-22 Young Radiator Co Crossflow radiator
FR2466002B1 (fr) * 1979-09-20 1985-06-07 Ferodo Sa Dispositif avertisseur de manque de liquide dans un echangeur de chaleur, notamment pour vehicule automobile
FR2514479B1 (fr) * 1981-10-13 1987-05-07 Valeo Echangeur de chaleur a circulation de liquide, en particulier pour un vehicule automobile
FR2557687B1 (fr) * 1983-12-28 1986-05-23 Valeo Dispositif formant boite a eau et vase d'expansion pour un echangeur de chaleur, comprenant un passage de degazage de liquide

Also Published As

Publication number Publication date
EP0274321A1 (de) 1988-07-13
FR2609329B1 (fr) 1989-03-31
ES2013642B3 (es) 1990-05-16
FR2609329A1 (fr) 1988-07-08
DE3762003D1 (de) 1990-04-26

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