EP0274321A1 - 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 PDFInfo
- Publication number
- EP0274321A1 EP0274321A1 EP87402903A EP87402903A EP0274321A1 EP 0274321 A1 EP0274321 A1 EP 0274321A1 EP 87402903 A EP87402903 A EP 87402903A EP 87402903 A EP87402903 A EP 87402903A EP 0274321 A1 EP0274321 A1 EP 0274321A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water box
- deflector
- expansion tank
- chamber
- wall
- 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.)
- Granted
Links
Images
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 arranged 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 placed in a tube connecting a heat exchanger water box and an expansion tank, the tube being formed in one piece with at least part of the water box and at least part of the expansion tank and being suitable for receiving a float of a liquid level indicator
- this deflector comprising means for positioning relative to said tube, walls defining a chamber for receiving the float, means for establishing communication limited between said chamber on the one hand and the expansion tank and / or the water box on the other hand, means defining a degassing pipe for the passage of gas bubbles from the water box to the expansion tank and means defining a fluid circulation pipe from the expansion tank to the water box.
- the means for establishing limited communication comprise at least one opening, for example a notch, formed in at least one of the walls of the chamber, separating the latter from the expansion vessel and / or 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 subject of the invention is also an assembly comprising a monobloc part defining at least part of a heat exchanger water box, at least part of an expansion tank and a tube connecting these two elements, and further comprising a deflector as defined above, arranged in the tubing.
- Such an assembly can constitute a motor vehicle heat exchanger.
- 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 patent application 8109541 of May 13, 1981.
- 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 extreme 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 tubing 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 tubing, over a small fraction of its circumferential extension, to form, between the wall portion 11 and the wall 12, a longitudinal pipe 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 bears 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 to the upper end of the tube 7, is supported by an extension 26 on a shoulder 27 formed by the wall of the expansion vessel at the end. right where it connects 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.
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 true EP0274321A1 (de) | 1988-07-13 |
EP0274321B1 EP0274321B1 (de) | 1990-03-21 |
Family
ID=9346705
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) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0454559A1 (de) * | 1990-04-26 | 1991-10-30 | Valeo Thermique Moteur | Endkammer mit Ausdehnungsgefäss für einen Wärmetauscher, zum Beispiel einen Kühler und Wärmetauscher mit einer derartigen Vorrichtung |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3406751A (en) * | 1967-06-30 | 1968-10-22 | Young Radiator Co | Crossflow radiator |
FR2466002A1 (fr) * | 1979-09-20 | 1981-03-27 | Ferodo Sa | Dispositif avertisseur de manque de liquide dans un echangeur de chaleur, notamment pour vehicule automobile |
FR2514479A1 (fr) * | 1981-10-13 | 1983-04-15 | Valeo | Echangeur de chaleur a circulation de liquide, en particulier pour un vehicule automobile |
FR2557687A1 (fr) * | 1983-12-28 | 1985-07-05 | Valeo | Dispositif formant boite a eau et vase d'expansion pour un echangeur de chaleur, comprenant un passage de degazage de liquide |
-
1987
- 1987-01-06 FR FR8700055A patent/FR2609329B1/fr not_active Expired
- 1987-12-18 ES ES87402903T patent/ES2013642B3/es not_active Expired - Lifetime
- 1987-12-18 DE DE8787402903T patent/DE3762003D1/de not_active Expired - Lifetime
- 1987-12-18 EP EP19870402903 patent/EP0274321B1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3406751A (en) * | 1967-06-30 | 1968-10-22 | Young Radiator Co | Crossflow radiator |
FR2466002A1 (fr) * | 1979-09-20 | 1981-03-27 | Ferodo Sa | Dispositif avertisseur de manque de liquide dans un echangeur de chaleur, notamment pour vehicule automobile |
FR2514479A1 (fr) * | 1981-10-13 | 1983-04-15 | Valeo | Echangeur de chaleur a circulation de liquide, en particulier pour un vehicule automobile |
FR2557687A1 (fr) * | 1983-12-28 | 1985-07-05 | Valeo | Dispositif formant boite a eau et vase d'expansion pour un echangeur de chaleur, comprenant un passage de degazage de liquide |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0454559A1 (de) * | 1990-04-26 | 1991-10-30 | Valeo Thermique Moteur | Endkammer mit Ausdehnungsgefäss für einen Wärmetauscher, zum Beispiel einen Kühler und Wärmetauscher mit einer derartigen Vorrichtung |
FR2661489A1 (fr) * | 1990-04-26 | 1991-10-31 | 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. |
Also Published As
Publication number | Publication date |
---|---|
FR2609329B1 (fr) | 1989-03-31 |
EP0274321B1 (de) | 1990-03-21 |
FR2609329A1 (fr) | 1988-07-08 |
DE3762003D1 (de) | 1990-04-26 |
ES2013642B3 (es) | 1990-05-16 |
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