EP1830072B1 - Châssis de ventilateur pour transmetteur thermique et dispositif d'un ventilateur axial dans un châssis de ventilateur - Google Patents

Châssis de ventilateur pour transmetteur thermique et dispositif d'un ventilateur axial dans un châssis de ventilateur Download PDF

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Publication number
EP1830072B1
EP1830072B1 EP07003522.5A EP07003522A EP1830072B1 EP 1830072 B1 EP1830072 B1 EP 1830072B1 EP 07003522 A EP07003522 A EP 07003522A EP 1830072 B1 EP1830072 B1 EP 1830072B1
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EP
European Patent Office
Prior art keywords
fan
shroud
ring
fan shroud
flow guiding
Prior art date
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Active
Application number
EP07003522.5A
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German (de)
English (en)
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EP1830072A3 (fr
EP1830072A2 (fr
Inventor
Markus Dr. Schatz
Ulrich Vollert
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 Behr GmbH and Co KG
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Mahle Behr GmbH and Co KG
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Publication of EP1830072A2 publication Critical patent/EP1830072A2/fr
Publication of EP1830072A3 publication Critical patent/EP1830072A3/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • F04D29/544—Blade shapes
    • 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
    • F01P11/10—Guiding or ducting cooling-air, to, or from, liquid-to-air heat exchangers
    • 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
    • F01P2070/00—Details
    • F01P2070/50—Details mounting fans to heat-exchangers
    • 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/06—Guiding or ducting air to, or from, ducted fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/51—Inlet

Definitions

  • the invention relates to a fan frame for a heat exchanger according to the preamble of claim 1 and to an arrangement of an axial fan according to the preamble of claim 12.
  • Fan shrouds also called fan shrouds, are used in heat exchangers with fans to guide the cooling air.
  • the heat exchanger usually has a rectangular end face from which exits the sucked in from the environment cooling air and the fan is supplied.
  • the fan usually designed as axial fan or shell fan, runs in a Zargenring the fan frame, which causes a channeling of the exiting the heat exchanger air in the inlet plane of the fan.
  • the air flow experiences considerable deflections, which depend on the different geometry of the heat exchanger interface and the fan inlet surface and the distance between the heat exchanger outlet and fan inlet planes.
  • the flow entering the fan is thus inhomogeneous with respect to its direction and speed, which degrades the efficiency of the fan. Due to local conditions also separations of the flow can occur, which is also not desirable.
  • the applicant was a cooling module, consisting of individual heat exchangers, known, on which the suction side, ie in the air flow direction behind the heat exchanger a fan frame is fixed with a Zargenring in which a motor driven fan rotates.
  • the trained as a plastic injection molded fan shroud has on the side facing the heat exchangers struts over which the electric motor and the attached fan are held. Trained as a shell fan axial fan forms with the Zargenring a relatively narrow gap, since fan and Zargenring are attached to the same component, namely the heat exchanger or cooling module, which is attached to the frame of a motor vehicle. In this respect, between the fan and Zargenring no relative movements.
  • the applicant has a fan assembly for cooling motor vehicle engines is known, wherein the fan is designed as a radial fan, consisting of a support plate, a cover plate and arranged between these radial blades, which suck air in the axial direction, deflect and promote in the radial direction to the outside.
  • the known fan assembly is based on the problem that arise in the deflection of the air flow from the axial direction in the radial direction in the wheel separation phenomena, which reduce the efficiency of the radial impeller.
  • a so-called guide ring with a circular arc-shaped cross-section is proposed, which causes a deflection of the axial inlet flow in a radially directed flow.
  • the guide ring protrudes into the radial impeller, wherein in another embodiment of the invention another, ie an inner guide ring is provided, which is attached to the outer guide ring.
  • Such radial fans have an increased depth in the axial direction and are no longer suitable for today's requirements in a motor vehicle.
  • the publication US-A-2001/00213145 It is an object of the present invention to design a fan cowl of the type mentioned above such that a higher efficiency can be achieved for the axial fan arranged in the fan cowl.
  • At least one flow guide element is provided in the air inlet region of the axial fan, which deflects the air flow supplied to the fan in a substantially axial direction.
  • This achieves the advantage that the airflow entering the axial fan is homogenized, ie. H. forms a substantially axially aligned flow.
  • the advantage of a higher efficiency for the fan is achieved by loss-causing vortices and possible separation of the flow in the input or deflection of the fan can be avoided.
  • the drive power for the fan is thus lower.
  • the at least one flow guide is formed as a ring, which is profiled in cross-section such that a deflection in the axial direction is achieved.
  • the profile of the ring called Vorleitring for short, may have different shapes, such as straight, curved or curved.
  • the ring itself is preferably circular, but also an elliptical, oval or angular shape or a combination of several such forms is possible.
  • the Vorleitring is attached to the fan cowl, and advantageously at their struts, which are located between the fan and the upstream heat exchanger (internal struts). At this struts, which also hold the fan and its drive motor, the Vorleitring can be molded. This results in cost-effective production options, so that the fan frame with Zargenring and Vorleitring is produced in one piece. It is also possible to divide the closed over the circumference Vorleitring into individual segments.
  • the flow guide or the Vorleitring an entrance angle ⁇ and an exit angle ⁇ , from the difference ( ⁇ - ⁇ ), the deflection angle ⁇ results. While the exit angle ⁇ is substantially constant over the circumference, i. H. has an axially parallel alignment, the inlet angle over the circumference of the Vorleitringes viewed not constant, but adapted to the local prevailing flow conditions. Due to the geometry of the fan cowl, the size of the heat exchanger and the Zargenring devismessers arise different inflow in the inlet area.
  • the air flow introduced from the corner regions which have a greater distance from the frame ring, has a substantially radial component, while the air flow introduced from the immediate vicinity of the frame ring has an already axial flow orientation.
  • a larger inlet angle ⁇ is provided for the regions with a radial inflow direction than for the peripheral regions with an axially aligned inflow. This results in distributed over the circumference different deflection angle ⁇ . This achieves the advantage of a locally adapted optimal inflow deflection and a further increase in fan efficiency.
  • a second flow guide in particular in the form of a second Vorleitringes provided which concentric with the first Vorleitring with less Diameter, that is arranged radially inward.
  • the second Vorleitring can also be attached to the struts of the fan cowl and preferably formed as a one-piece plastic injection molded part.
  • the at least one flow guide as a separate part, preferably as a separate Vorleitring, once or twice, manufactured and inserted into the fan cowl and there are preferably secured by a clip connection.
  • the object of the invention is also achieved by an arrangement having the features of claim 12.
  • the inventively designed fan shroud with flow guide forms a functional unit with at least one heat exchanger to which the fan frame connects with Zargenring, and the axial fan, which rotates in the Zargenring and is driven by a motor.
  • the fan cowl is advantageously attached to a heat exchanger of a motor vehicle, in particular a coolant radiator or a cooling module, wherein the heat exchanger is supported relative to the body of the vehicle.
  • the drive motor is designed as an electric motor which is attached via struts to the fan cowl and also carries the fan.
  • the fan may preferably be designed as a jacket fan, wherein between the jacket and Zargenring a gap is left, in which forms leakage flow.
  • the jacket is covered by a diaphragm ring attached to the fan cowl. This will be through the Vorleitring deflected flow supplied to the fan within the shell and does not interfere with the formation of the leakage flow.
  • the arrangement has an axial fan, which is driven by the internal combustion engine of a motor vehicle, d. H.
  • the fan is not attached to the frame, but supported on the engine block.
  • the axial fan is drivable via a fluid friction clutch, which in turn is driven by the internal combustion engine and controls the speed of the axial fan.
  • the bezel ring which surrounds the axial fan is supported on the engine block and opposite to the radiator, d. H. fixed to the vehicle fan frame kinematically decoupled, for example by an elastomeric bellows.
  • the flow guide element or the guide ring is fastened here to the frame ring, so that the axial fan can be supplied with an axially aligned inlet flow.
  • the flow guide according to the invention is thus also applicable to motor-fixed fan arrangements.
  • Fig. 1 shows a half section through a fan frame 1 and an attached to the fan frame 1 axial fan 2, which has an axis a and air in the flow direction L promotes.
  • the fan cowl 1 which is shown only halfway, has an entry plane 1a (perpendicular to the plane of the drawing) which adjoins connects a heat exchanger, not shown, with an approximately rectangular end face.
  • the heat exchanger may preferably be a coolant radiator of a motor vehicle and supported on the frame of the motor vehicle.
  • the fan shroud 1 has a hood-like rear wall 1b (hence the alternative designation: fan shroud), which merges into an approximately cylindrically shaped frame ring 1c, in which the provided with a cylindrical sheath 2a axial fan 2, short shroud fan rotates.
  • the fan frame 1 also has substantially radially aligned struts 1d, which lead to a retaining ring 1e, which receives an electric motor, not shown, for driving the fan 2.
  • the latter has a hub 2b, which is connected to the electric motor.
  • the fan frame 1 thus carries the electric motor and the fan 2, ie the blower and in turn on the coolant radiator, ie supported vehicle-fixed. Between the jacket 2a of the fan 2 and the frame ring 1c, a radial gap 3 is left, which is practically constant due to the common support of the fan 2 and the frame 1.
  • Vorleitring 4 According to the axial flow fan 2 - seen in the air flow direction L - a flow guide, here as a so-called Vorleitring 4, upstream.
  • the cross-section of the Vorleitringes 4 shows in the illustrated sectional plane a curved profile, which causes a deflection of the air flow occurring in this area from a substantially radial inflow, represented by an arrow v, in a substantially axially directed outflow.
  • the Vorleitring 4 is attached to the distributed over the circumference, inner struts 1 d attached, preferably integrally molded onto the struts 1 d.
  • a diaphragm ring 5 is attached to the fan frame 1, which extends on the one hand radially inward, approximately to the diameter of the shell 2a, and on the other hand with a slight rounding in the axial direction, a nose 5a, is provided.
  • the detail X shows an enlarged view of the arrangement of the Vorleitringes 4 in conjunction with the aperture ring 5 on the fan frame 1 and the frame ring 1c.
  • the Vorleitring 4 has on the inlet side an entry angle ⁇ 1 , based on the axial direction (fan and motor axis a), on. downstream the Vorleitring 4 an exit angle ⁇ , which is equal to zero with respect to the axial direction.
  • the curvature of the Vorleitringes 4 thus runs downstream in an axial direction.
  • the inlet angle ⁇ 1 is adapted to the vectorial orientation of the flow occurring locally in this area, which is illustrated by way of example and schematically by the arrow v.
  • Fig. 2 shows a further half-section to the motor and fan axis a in a plane which in relation to the cutting plane according to Fig. 1 offset by 90 degrees.
  • the fan frame 1 has, in accordance with the heat exchanger, not shown, an approximately rectangular outline with a long and a short side of the rectangle.
  • Fig. 2 shows the half-section parallel to the short side; for the same parts, the same reference numbers are used as before. Due to the smaller dimension of the fan cowl 1 in this sectional plane deviating flow conditions in the area of the Vorleitringes 4. The air flow is in this area vectorially predominantly aligned axially, which is shown schematically by an arrow u.
  • the entrance angle ⁇ 2 which is shown in the enlarged detail Y, adjusted accordingly: the entrance angle ⁇ 2 is thus substantially smaller than the entrance angle ⁇ 1 in Fig. 1 or the detail X.
  • the exit angle ⁇ is not shown in the detail Y. It corresponds to the angle ⁇ in Fig. 1 ,
  • the aperture ring 5 with nose 5a is not changed in this area.
  • the entry angle ⁇ of the Vorleitringes 4 thus changes over the circumference between the two illustrated values ⁇ 1 and ⁇ 2 , wherein in each case two maxima and two minima are diametrically opposite. Deviations are of course possible with a changed position of the Zargenringes relative to the rectangular outline of the fan cowl, since this would change the flow conditions relative to the illustrated embodiment. It is therefore crucial that the Vorleitring is adapted to the locally prevailing vectorial flow conditions, so that a detachment-free deflection, in particular on the suction side (radially inward) of the Vorleitringes 4
  • Fig. 3 shows a nuancesres embodiment of the invention, in turn shown as a half-section to the motor and fan axis a.
  • a fan frame 6 has a Zargenring 6a, in which the axial fan, not shown, rotates.
  • a Vorleitring 7 is a separate part, z. B. manufactured as a plastic injection molding and inserted into the fan frame 6.
  • the fan frame 6 has inner struts 6b for holding the fan motor, not shown, which simultaneously serve to hold the Einsteckringes 7.
  • the latter therefore has molded-on clip elements 7a, which comprise the struts 6b and are clipped with them.
  • Fig. 4 shows a view in the direction of arrow A on a clamping element 7a of the plug-in Vorleitringes. 7
  • Fig. 5 shows an isometric view of the fan frame 1 according to Figures 1 and 2 - It is therefore used the same reference numerals for the same parts. It can be seen here clearly the rectangular outline of the fan frame 1 and arranged therein Vorleitring 4, which is molded onto the inner struts 1d. It also becomes clear that the air, which consists of arranged in front of the fan frame 1, not shown, heat exchanger exits, has different ways to cover the Vorleitring 4 and therefore different speed vectors, distributed over the circumference of the Vorleitringes 4, has.
  • the fan 2 and the Vorleitring 4 are arranged symmetrically to the rectangular outline of the fan frame 1, are of course also asymmetric arrangements in which the fan axis is arranged outside the rectangular center. This results in different flow conditions in the region of the Vorleitringes 4, which - as mentioned above - is adaptable thereto.
  • Fig. 6 shows a slightly modified embodiment of the invention with the fan frame 1 and inner struts 1d, to which a modified Vorleitring 8 is attached.
  • the rectangular outline of the frame 1 has two parallel long sides I and two parallel short sides k.
  • a segment of the lead-out ring 8 is removed, so that a leading edge 8a recessed in the direction of flow has emerged.
  • the curved area with the entry angle ⁇ (see. Fig. 1 ), Detail X has been omitted so far that the Vorleitring 8 has in this area only an axially oriented wall.
  • the same configuration with reset leading edge is provided on the diametrically opposite (hidden) side of the Vorleitringes 8.
  • Fig. 7 shows a further embodiment of the invention with a fan frame 1, in which two Vorleitringe, an outer Vorleitring 9 and an inner Vorleitring 10, are arranged concentrically.
  • the outer Vorleitring 9 corresponds to the previous embodiments, while the inner Vorleitring 10 is arranged offset with a smaller diameter to form an annular gap 11 inwardly.
  • This double Vorleitring 9, 10 can be an even better, detachment-free deflection of the flow in the critical areas reach, whereby the fan efficiency can be further improved.
  • Both rings are attached to the inner struts 1 d and preferably made in one piece with the entire fan frame 1 as a plastic injection molded part.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (21)

  1. Châssis de ventilateur (1) pour un échangeur de chaleur, ledit châssis comprenant une virole de châssis (1c) servant au logement d'un ventilateur axial (2) conçu comme un ventilateur caréné, où au moins un élément déflecteur d'écoulement (4, 7, 8, 9, 10), vu dans la direction L de l'écoulement d'air, est monté en amont du ventilateur axial (2), caractérisé en ce que l'élément déflecteur d'écoulement au moins au nombre de un se compose de différents segments annulaires répartis sur la circonférence, où l'élément déflecteur d'écoulement (4, 7, 8, 9, 10) au moins au nombre de un est fixé sur le châssis de ventilateur (1).
  2. Châssis de ventilateur selon la revendication 1, caractérisé en ce que l'élément déflecteur d'écoulement (4, 7, 8, 9, 10) au moins au nombre de un est configuré en étant de forme annulaire.
  3. Châssis de ventilateur selon l'une des revendications 1 ou 2, caractérisé en ce que le châssis de ventilateur (1) présente des croisillons (1d) servant au maintien du ventilateur axial (2), et en ce que l'élément déflecteur d'écoulement (4, 7, 8, 9, 10) au moins au nombre de un est fixé sur les croisillons (1d).
  4. Châssis de ventilateur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément déflecteur d'écoulement (4, 8, 9, 10) au moins au nombre de un, le châssis de ventilateur (1) et / ou les croisillons (1d) sont configurés en formant une seule et même pièce en matière plastique moulée par injection.
  5. Châssis de ventilateur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément déflecteur d'écoulement (4, 7, 8, 9, 10) au moins au nombre de un présente un profil de retour de flux, de préférence bombé.
  6. Châssis de ventilateur selon la revendication 5, caractérisé en ce que le profil de retour de flux (4, 7, 8, 9, 10) présente un angle d'entrée α et un angle de sortie β, et en ce que les angles d'entrée α, répartis sur la circonférence, présentent des valeurs différentes.
  7. Châssis de ventilateur selon la revendication 6, caractérisé en ce que l'angle d'entrée α peut être adapté à la direction locale de l'alimentation d'air.
  8. Châssis de ventilateur selon la revendication 6 ou 7, caractérisé en ce que l'angle de sortie β correspond à une évacuation orientée dans la direction axiale.
  9. Châssis de ventilateur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un anneau d'obturation (5) est disposé sur le châssis de ventilateur (1), dans la zone de transition comprise entre la paroi arrière de châssis (1b) et la virole de châssis (1c), lequel anneau d'obturation agit de façon conjointe avec l'élément déflecteur d'écoulement (4), pour obtenir un écoulement passant par une fente et formant un retour de flux.
  10. Châssis de ventilateur selon l'une quelconque des revendications précédentes, caractérisé en ce que deux éléments déflecteurs d'écoulement, à savoir un anneau prédéflecteur extérieur (9) et un anneau prédéflecteur intérieur (10), sont disposés dans le châssis de ventilateur (1), de manière concentrique et en formant une fente annulaire (11).
  11. Châssis de ventilateur selon l'une quelconque des revendications 1 à 3 ou 5 à 10, caractérisé en ce que l'élément déflecteur d'écoulement au moins au nombre de un peut être fabriqué comme une pièce annulaire distincte (7), pouvant être introduit, en particulier clipsé, dans le châssis de ventilateur (6).
  12. Agencement d'un ventilateur axial (2) dans un châssis de ventilateur (1), où le ventilateur axial (2) tourne dans une virole de châssis (1c) et peut être entraîné par un moteur, caractérisé en ce que le châssis de ventilateur (1) est conçu selon au moins l'une quelconque des revendications précédentes.
  13. Agencement selon la revendication 12, caractérisé en ce que le châssis de ventilateur (1) est fixé sur un échangeur de chaleur, en particulier sur un radiateur à liquide de refroidissement d'un véhicule automobile.
  14. Agencement selon la revendication 12 ou 13, caractérisé en ce que le moteur d'entraînement est conçu comme un moteur électrique et fixé sur le châssis de ventilateur (1, 1d, 1e).
  15. Agencement selon la revendication 12 ou 13, caractérisé en ce que le ventilateur axial peut être entraîné par le moteur à combustion interne d'un véhicule automobile.
  16. Agencement selon la revendication 15, caractérisé en ce que le ventilateur axial peut être entraîné par un accouplement à friction de liquide.
  17. Agencement selon la revendication 16, caractérisé en ce que le ventilateur axial est disposé sur le côté sortie de l'accouplement à friction de liquide.
  18. Agencement selon la revendication 15, 16 ou 17, caractérisé en ce que la virole de châssis est découplée du châssis de ventilateur, de manière cinématique, et placée en appui sur le moteur à combustion interne.
  19. Agencement selon la revendication 18, caractérisé en ce que l'élément déflecteur d'écoulement au moins au nombre de un peut être fixé sur la virole de châssis.
  20. Agencement selon l'une quelconque des revendications 12 à 19, caractérisé en ce que l'anneau d'obturation (5) présente un diamètre intérieur qui est égal ou inférieur au diamètre extérieur du ventilateur (2), en particulier à celui du carénage (2a) du ventilateur.
  21. Agencement selon l'une quelconque des revendications 12 à 19, caractérisé en ce qu'une fente annulaire (3) est disposée entre le carénage (2a) et la virole de châssis (1c), et en ce que l'anneau d'obturation (5) forme un recouvrement de la fente annulaire (3) dans la direction L de l'écoulement d'air (L).
EP07003522.5A 2006-03-01 2007-02-21 Châssis de ventilateur pour transmetteur thermique et dispositif d'un ventilateur axial dans un châssis de ventilateur Active EP1830072B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006009845A DE102006009845A1 (de) 2006-03-01 2006-03-01 Lüfterzarge für einen Wärmeübertrager und Anordnung eines Axiallüfters in einer Lüfterzarge

Publications (3)

Publication Number Publication Date
EP1830072A2 EP1830072A2 (fr) 2007-09-05
EP1830072A3 EP1830072A3 (fr) 2008-03-26
EP1830072B1 true EP1830072B1 (fr) 2017-09-06

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DE (1) DE102006009845A1 (fr)

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WO2011101440A1 (fr) * 2010-02-18 2011-08-25 Behr Gmbh & Co. Kg Dispositif de guidage d'air pour un ventilateur
DE102012207552A1 (de) 2011-05-13 2012-11-15 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Kühlerlüftermodul
DE102013204069B4 (de) * 2013-03-11 2020-10-01 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg Lüfterzarge und Lüftermodul für einen Kühler eines Kraftfahrzeugs
DE102018204061A1 (de) * 2018-03-16 2019-09-19 Mahle International Gmbh Radiallüfter zum Fördern von Luft
DE102022001701A1 (de) 2022-05-16 2023-11-16 Mercedes-Benz Group AG Kühlmodul für ein Kraftfahrzeug, insbesondere für einen Kraftwagen

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Publication number Publication date
EP1830072A3 (fr) 2008-03-26
DE102006009845A1 (de) 2007-09-13
EP1830072A2 (fr) 2007-09-05

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