EP0980504B1 - Radiateur d'un vehicule a moteur avec un dispositif de protection contre l'impact de particules - Google Patents

Radiateur d'un vehicule a moteur avec un dispositif de protection contre l'impact de particules Download PDF

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Publication number
EP0980504B1
EP0980504B1 EP98925538A EP98925538A EP0980504B1 EP 0980504 B1 EP0980504 B1 EP 0980504B1 EP 98925538 A EP98925538 A EP 98925538A EP 98925538 A EP98925538 A EP 98925538A EP 0980504 B1 EP0980504 B1 EP 0980504B1
Authority
EP
European Patent Office
Prior art keywords
ribbed
radiator
pipes
grid part
particles
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
EP98925538A
Other languages
German (de)
English (en)
Other versions
EP0980504A1 (fr
Inventor
Horst Schicht
Manfred Gieras
Marinus Huisman
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP0980504A1 publication Critical patent/EP0980504A1/fr
Application granted granted Critical
Publication of EP0980504B1 publication Critical patent/EP0980504B1/fr
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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/002—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using inserts or attachments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers

Definitions

  • the invention relates to a radiator in a motor vehicle according to the preamble of Claim 1.
  • Radiators in motor vehicles usually contain a large number at intervals in parallel horizontal cooling tubes as web tubes, which are interconnected by corrugated heat dissipation plates are connected. Round pipes or flat pipes are used as media-carrying cooling pipes used. Such coolers are used, for example, as heat exchangers in the engine cooling circuit or used as capacitors in an air conditioning system in the vehicle.
  • coolers are usually used in the Front of the vehicle at a location that can be easily flowed through by the wind arranged.
  • a cooling air stream can contain particles such as e.g. smaller Carrying gravel stones with you, especially when overtaking, oncoming traffic and column driving on roads with insufficiently paved ground.
  • to Weight reduction of the cooler and for a good heat exchange between the Cooling air and the cooling medium make the cooling tube walls as thin-walled as possible dimensioned so that the coolant leading web tubes through such particles can be mechanically damaged. Doing so can be less critical Damage to the surface coating may occur, however thin-walled web tubes can also be leaked. This leads to a failure of the Engine cooling and to stop the vehicle in connection with complex Repairs.
  • the dummy has a lattice structure which is associated with that of the heat exchanger, that is, the web tube arrangement, corresponds this dummy solution has the advantage that it is the flow resistance for the cooling air practically not increased, even if it is in front of the bridge tubes extending grid webs of the dummy according to EP 0 076 928 A1 somewhat oversize compared to the transverse dimensions (width) of the web tubes.
  • US Pat. No. 5,042,575 discloses the attachment of an electrochemical Paths against biological deposits acting grid arrangement on a heat exchanger by means of hook-shaped extensions on the grid arrangement, which the heat exchanger on its Reach over the top and bottom. Due to the lack of fasteners in middle areas of this grid arrangement there is a risk that as a result of driving Vibrations Relative movements between areas of the grid arrangement on the one hand and of the heat exchanger on the other hand, the easily annoying noise, possibly also lead to damage.
  • the object of the invention is a generic cooler with protection against to create impinging particles which, with a good protective function, do not or only block the cooling air flow little influenced and simple in a space-saving and weight-saving arrangement and inexpensive to manufacture and retrofit, and one in the operation of the vehicle has a tight fit.
  • the invention thus uses cover rails or crossbars, as it were expediently at a distance from the web walls to be covered in a lattice network are arranged.
  • the cover rails or the grid part are in the spaces between clipped the bridge tubes.
  • the required clips can be sent directly to the Cover rails or the lattice part are molded or designed as separate clip pieces.
  • the cover rails or the grid part and the clips can be made of sheet metal or preferably Plastic as molded plastic parts to be made.
  • the cover rails used here can have a slightly larger width than that have to be covered web tube wall areas. Because the ones to be covered Bridge tube wall areas, in particular with flat tubes in comparison to the entire Cooler area have only a small expansion, leads to an increase in Width of the cover rails by 20% to 30% compared to the width of the endangered Bridge tube walls only have an insignificant influence on the cooling air throughput.
  • radiator front Areas can be more or less endangered by a particle impact on the radiator front Areas.
  • the expense for particle protection can be reduced if necessary can be reduced so that only strongly endangered cooler areas or web tube areas be covered.
  • a portion of a radiator 1 for a motor vehicle is shown with horizontal, parallel web tubes 2, 3, 4, 5 and 6, which are corrugated Heat dissipation plates 7, 8, 9 and 10 are connected.
  • the web tubes are flat tubes with an elongated, narrow, rectangular Cross section with two opposite narrow sides 11, 12 and broad sides 13, 14 educated.
  • the bridge tubes 2 to 6 run as a connection between the respective Broad sides 13, 14 parallel webs 15, through the longitudinal chambers 16, here six Longitudinal chambers 16 are formed for guiding a cooling medium (arrow 20).
  • the outer webs 17, 18 which laterally delimit the web tubes 2 to 6 form the Narrow sides 11, 12.
  • this is in the Front of a motor vehicle arranged so that it with a cooling air flow in Direction towards the outer webs 18 and through the corrugation of the heat dissipation plates 7 to 10 is flowed through and flowed through, as indicated by arrow 19.
  • the Cooling air flow (arrow 19), particles such as small stones, sand etc. are carried along.
  • the impact of these particles on the narrow sides 11 of the web tubes 2 to 6 is prevented the grid part 22, consisting of horizontally and parallel cover rails 23, which are connected by vertical webs 25 and which in the assembled state Cover narrow sides 11 of the web tubes 2 to 6 or their outer webs 18.
  • the Grid part 22 is with molded clips 24 or, if necessary, separate clips 26 (alternatively shown in dashed lines) in the spaces between the web tubes 2 to 6 fixable.
  • the cover rails 23 can also be attached individually to the respective web tubes 2 to 6 are clipped.
  • the grid part 22 is a plastic injection part manufactured.
  • a grille part 22 attached to the cooler 1 in this way provides effective protection against damage caused by particle flight and in particular prevents Leakage of the web tubes 2 to 6.
  • the protective effect can be increased by that the cover width of the cover rails 23 is 20 percent to 30 percent larger is selected as the width of the assigned narrow sides 11 of the web tubes 2 to 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)

Claims (6)

  1. Radiateur d'un véhicule automobile comprenant des tubes nervurés (2 à 6) espacés, conduisant le réfrigérant, et une partie de grille (22) orientée uniquement dans la direction des particules (flèche 19) venant frapper les côtés étroits des tubes nervurés, recouvrant les parois (18) des tubes nervurés sollicitées mécaniquement par ces particules, servant de protection contre l'impact des particules, caractérisé en ce que la partie de grille (22) est fixée au moyen de clips (24, 26) saillant de façon espacée entre les tubes nervurés (2 à 6) et s'appuyant contre les tubes nervurés (2 à 6).
  2. Radiateur selon la revendication 1, caractérisé en ce que les clips (24, 26) sont formés sur la partie de grille (22).
  3. Radiateur selon la revendication 1, caractérisé en ce que les clips (26) sont des composants séparés.
  4. Radiateur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la largeur de rails de recouvrement (23) recouvrant des parois (18) des tubes nervurés sollicitées mécaniquement, constituant des composants de la partie de grille (22), est supérieure de 20 à 30 pour-cent à la largeur de ces parois (18) des tubes nervurés.
  5. Radiateur selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la partie de grille (22) ne s'étend que devant des tubes nervurés (2 à 6) ou des zones de tubes nervurés particulièrement soumis à des sollicitations mécaniques.
  6. Radiateur selon la revendication 5, caractérisé en ce que la partie de grille est formée par des rails de recouvrement (23) non connectés qui sont fixés individuellement de manière détachable par des clips (24, 26) sur des tubes nervurés (2 à 6).
EP98925538A 1997-05-07 1998-05-06 Radiateur d'un vehicule a moteur avec un dispositif de protection contre l'impact de particules Expired - Lifetime EP0980504B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19719021 1997-05-07
DE19719021 1997-05-07
PCT/EP1998/002653 WO1998050751A1 (fr) 1997-05-07 1998-05-06 Dispositif de protection du radiateur d'un vehicule a moteur contre l'impact de particules

Publications (2)

Publication Number Publication Date
EP0980504A1 EP0980504A1 (fr) 2000-02-23
EP0980504B1 true EP0980504B1 (fr) 2002-09-18

Family

ID=7828720

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98925538A Expired - Lifetime EP0980504B1 (fr) 1997-05-07 1998-05-06 Radiateur d'un vehicule a moteur avec un dispositif de protection contre l'impact de particules

Country Status (7)

Country Link
EP (1) EP0980504B1 (fr)
JP (1) JP2001527634A (fr)
KR (1) KR20010012282A (fr)
AT (1) ATE224527T1 (fr)
BR (1) BR9809603A (fr)
DE (1) DE59805617D1 (fr)
WO (1) WO1998050751A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20110187A1 (it) 2011-03-02 2012-09-03 Denso Thermal Systems Spa Scambiatore di calore di un veicolo, provvisto di una griglia di protezione
FR3035955B1 (fr) * 2015-05-06 2019-04-19 Valeo Systemes Thermiques Echangeur de chaleur comportant un dispositif de protection
DE102016223785A1 (de) * 2016-11-30 2018-05-30 Bayerische Motoren Werke Aktiengesellschaft Kühlerbaugruppe für ein Kraftfahrzeug
FR3060106B1 (fr) 2016-12-12 2019-05-17 Valeo Systemes Thermiques Dispositif d’echange de chaleur comportant un dispositif de protection
FR3079453B1 (fr) * 2017-05-02 2021-03-05 Valeo Systemes Thermiques Dispositif d'echange de chaleur comprenant un filet de protection
DE102017217308A1 (de) * 2017-09-28 2019-03-28 Mahle International Gmbh Wärmeübertrager
DE102017221083A1 (de) 2017-11-24 2019-05-29 Mahle International Gmbh Wärmetauscher für ein Kraftfahrzeug
EP4166886A4 (fr) * 2020-06-15 2023-07-26 Mitsubishi Electric Corporation Échangeur de chaleur et appareil à cycle de réfrigération

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190352A (en) * 1962-08-23 1965-06-22 Modine Mfg Co Radiator tube protector
US5042575A (en) * 1990-08-27 1991-08-27 General Motors Corporation Evaporator core having biocidal fixture

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2981520A (en) * 1959-11-09 1961-04-25 Borg Warner Plate-type heat-exchangers
GB1175157A (en) * 1966-03-19 1969-12-23 Ernst Kreiselmaier Improvements in or relating to Steam Condensers
US3385355A (en) * 1967-09-01 1968-05-28 Young Radiator Co Motor-vehicle-radiator tube-and-fin abrasion-guard
DE2515007A1 (de) * 1975-04-07 1976-10-21 Wessels Gerhard Kunststoffbeschichtung fuer waermeaustauscher und rohre fuer waermeaustauscher
DE3109955C2 (de) * 1981-03-14 1983-09-29 Kühlerfabrik Längerer & Reich GmbH & Co KG, 7024 Filderstadt Wärmeaustauscher in Plattenbauweise für insbesondere in Lastkraftwagen oder dgl. einbaubare Verbrennungsmotoren
DE3110448C1 (de) * 1981-03-18 1983-06-01 Klöckner-Humboldt-Deutz AG, 5000 Köln Waermetauscher
DE3140408A1 (de) * 1981-10-12 1983-04-28 Klöckner-Humboldt-Deutz AG, 5000 Köln Waermetauscher
US4592437A (en) * 1985-01-25 1986-06-03 Deere & Company Radiator sand screen mounting arrangement
US4715431A (en) * 1986-06-09 1987-12-29 Air Products And Chemicals, Inc. Reboiler-condenser with boiling and condensing surfaces enhanced by extrusion

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190352A (en) * 1962-08-23 1965-06-22 Modine Mfg Co Radiator tube protector
US5042575A (en) * 1990-08-27 1991-08-27 General Motors Corporation Evaporator core having biocidal fixture

Also Published As

Publication number Publication date
BR9809603A (pt) 2000-07-04
ATE224527T1 (de) 2002-10-15
KR20010012282A (ko) 2001-02-15
DE59805617D1 (de) 2002-10-24
JP2001527634A (ja) 2001-12-25
WO1998050751A1 (fr) 1998-11-12
EP0980504A1 (fr) 2000-02-23

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