EP2080979A1 - Refroidisseur de moteur à combustion interne - Google Patents

Refroidisseur de moteur à combustion interne Download PDF

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Publication number
EP2080979A1
EP2080979A1 EP08170044A EP08170044A EP2080979A1 EP 2080979 A1 EP2080979 A1 EP 2080979A1 EP 08170044 A EP08170044 A EP 08170044A EP 08170044 A EP08170044 A EP 08170044A EP 2080979 A1 EP2080979 A1 EP 2080979A1
Authority
EP
European Patent Office
Prior art keywords
sealing
combustion engine
internal combustion
housing part
cooling
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
Application number
EP08170044A
Other languages
German (de)
English (en)
Other versions
EP2080979B1 (fr
Inventor
Franz Dellen
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.)
Pierburg GmbH
Original Assignee
Pierburg 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 Pierburg GmbH filed Critical Pierburg GmbH
Publication of EP2080979A1 publication Critical patent/EP2080979A1/fr
Application granted granted Critical
Publication of EP2080979B1 publication Critical patent/EP2080979B1/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
    • 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
    • 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
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • 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
    • F01P3/00—Liquid cooling
    • F01P3/18—Arrangements or mounting of liquid-to-air heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2230/00—Sealing means

Definitions

  • the invention relates to an internal combustion engine radiator for cooling a liquid coolant, which in turn can cool an internal combustion engine.
  • the radiator for an internal combustion engine is a heat exchanger in which a liquid coolant is cooled by the ambient air flowing through the radiator.
  • Most internal combustion engine coolers are composed of multiple housing parts. In this way, complex cooler structures can be realized, the use of expensive raw materials can be reduced and the weight of the cooler can be minimized and optimized.
  • Common combustion engine radiator have as housing parts a heat exchanger made of metal and each laterally attached water jacket shells made of plastic.
  • the aforementioned housing parts each have flanges lying on one another, which are connected to each other by a mechanical connection, for example by metal retaining clips.
  • elastic sealing lips are embedded in a flange or in both flanges, which are pressed together by the flange connection and seal in this way.
  • the object of the invention is in contrast to provide an internal combustion engine radiator with an improved liquid-tight and pressure-tight seal between two housing parts.
  • the internal combustion engine radiator according to the invention has on the mounting flange of a housing part a circumferential sealing groove and on the mounting flange of the other housing part in the sealing groove projecting circumferential sealing land, which is inserted with interference fit into the sealing groove, wherein the plug axis approximately perpendicular to the force axis of the pressing force stands. Due to the press fit of the sealing web in the sealing groove, the flange seal is sealed liquid-tight and pressure-tight. The actual seal is therefore no longer in the plane of the opposing flange surfaces, but takes place in the seal groove. The force with which the seal is generated or supported, that is not dependent on the actual connection of the two housing parts or the two flanges together.
  • connection of the flanges with each other has no immediate effect on the quality of the seal, since the sealing quality determining pressing force is independent of the connection force of the flange connection.
  • the pressing force which is present between the sealing web and the sealing groove, is almost independent of the flange connection. In this way, a durable and reliable, liquid-tight and pressure-tight connection of the two housing parts is realized together.
  • the seal is relatively insensitive to external damage and deformation of the housing, the flanges or the connecting means.
  • the sealing web on a rigid web body and a deformable sealing lip, wherein the web body width is smaller than the sealing width, and the sealing lip is arranged on one of the two web body sides such that the sealing web width is greater than the groove width with relaxed sealing lip
  • the sealing web thus consists essentially of two parts, namely the rigid web body and the deformable sealing lip.
  • the sealing lip is continuously circulating over the entire course of the web body.
  • the sealing lip is arranged on at least one side of the web body, but it can be provided on each of the two sides of the web body in each case a circumferential sealing lip.
  • the sealing lip is deformed during insertion of the sealing web in the sealing groove such that the sealing web can be inserted as a whole in the sealing groove.
  • the web body is made of a material which in particular has a high fatigue strength and stability.
  • the separate sealing lip is designed for a long-lasting elasticity, which ensures a reliable seal in the long term.
  • the sealing lip is elastically deformable.
  • the sealing lip consists for example of rubber and / or of an elastically deformable plastic.
  • the sealing lip is positively secured to the web body.
  • the sealing lip may have undercut retaining fingers, which are inserted into corresponding retaining openings of the web body. In this way, a simple and quick installation of the sealing lip on the web body is possible.
  • the sealing lip can be fixed to the web body in other ways, for example by gluing or welding.
  • connection of the two housing parts is formed by the two flanges comprehensive retaining clips.
  • This connection technology makes the assembly easy and inexpensive. Since the seal is no longer guaranteed directly by the superimposed flanges, but by the arrangement consisting of the sealing web and the sealing groove, are not very high on the flange To demand more.
  • the inventive seal simpler and cheaper connection techniques for connecting the flanges of the two housing parts can be used.
  • a housing part made of aluminum and the other housing part made of plastic is common in contemporary engine coolers.
  • Aluminum has excellent thermal conductivity properties and plastic is inexpensive, available in complex shapes and lightweight.
  • a housing part of the actual heat exchanger of the radiator and the second housing part is a water jacket shell at one or at both longitudinal ends of the heat exchanger.
  • FIG. 1 is shown in cross section a part of an internal combustion engine radiator 10 for cooling a liquid coolant.
  • a liquid coolant for cooling a liquid coolant.
  • the coolant used is preferably water, that is within the cooling circuit comprising the radiator 10 under pressure, so that the boiling point of the water is above 100 ° C.
  • the radiator 10 consists essentially of two or more housing parts 12, 14, which are assembled to the radiator.
  • a first housing part 12 which is an aluminum heat exchanger
  • a second housing part 14 which forms a plastic water jacket shell
  • the cooler 10 may comprise further housing parts, which in the FIG. 1 have been omitted for simplicity.
  • the housing parts 12, 14 form a liquid-tight and pressure-tight coolant housing 11.
  • a mechanical connection 15 is provided, the flanges 30, 32 of the first and second housing part 12, 14 fixedly connected to each other.
  • the housing part flanges 30, 32 each have mutually facing mutually parallel support surfaces 31, 33 which lie on each other.
  • the two flanges 30, 32, the two housing parts 12, 14 are held together by a mechanical connection 15 in the form of a plurality of metal retaining clips 16.
  • the retaining clips 16 have barbs 67, which engage in corresponding retaining openings 69 of the flanges 30, 32. With the retaining clips 16, a simple mechanical connection 15 of the two flanges 30, 32, realized.
  • the mounting flange 30 of a housing part 12 has a circumferential sealing groove 17 into which a sealing web 20 of the other housing part 14 protrudes.
  • the sealing web 20 protrudes from the respective flange 32 and is formed such that it is inserted with a press fit into the sealing groove 17.
  • the sealing web 20 of the FIG. 1 is in the FIG. 2
  • the sealing web 20 has a stiff web body 22 and a deformable sealing lip 18.
  • the width S of the web body 22 is less than the width D of Sealing groove 17, the sealing bar width G with the sealing lip 18 relaxed, as in FIG. 2 is greater than the seal groove width D.
  • the sealing lip 18 is elastically deformable, and consists for example of rubber or of an elastic plastic.
  • the sealing lip 18 is positively secured to the web body 22.
  • the sealing lip 18 undercut retaining fingers 60; 61, which in corresponding holding openings 64; 66, the web body 22; 22 stuck.
  • the retaining fingers 60; 61 are formed approximately T-shaped.
  • the retaining fingers 60; 61 each consist of a connecting pin 26; 46 and a crossbar 28; 48, the crossbar 28 may be formed as a simple beam, as in the Figures 1 - 3
  • the cross bar 48 may also be formed, for example dovetail-shaped, as in FIG.
  • sealing lip body 24; 44; 52 is continuous over the entire flange circumference, the retaining fingers 60; 61 arranged singly over the entire length of the sealing lip body 24, for example, every 10 mm.
  • the sealing lip body 24 is semicircular in cross section.
  • the sealing lip 18 may sit in a corresponding retaining groove 70 of the web body 22 to fix the sealing lip body 24 in position with respect to the plugging direction.
  • the retaining fingers 60; 61 are a plurality of holding openings 64; 66 in the web body 22; 22 ', in which the retaining fingers 60; 61 are inserted or injected.
  • the sealing web 20 is seated with an interference fit in the sealing groove 17 such that its plug-in axis 21 is approximately perpendicular to the force axis 23 of the pressing force.
  • the plug-in axis 21 is the axis in which the sealing web 20 is inserted into the sealing groove 17.
  • the force axis 23 of the pressing force is the axis in which the spring force of the sealing lip 18 substantially acts. Since this pressing force is applied between the two groove walls of the sealing groove 17, a sufficient seal is provided at all times, even if the mechanical flange connection 15 is weakened in one place, for example by the absence of a retaining clip 16.
  • the sealing quality of the liquid and pressure-tight sealing is not depending on the quality of the mechanical connection 15, but largely independent of it.
  • sealing lip 42 In the in the FIG. 3 illustrated embodiment of a sealing web 20 'is the sealing lip 42 relative to the in the Figures 1 and 2 illustrated embodiment varies.
  • the sealing lip 42 has a rectangular cross-section sealing lip body 44 which rests on the groove-free web body 22.
  • the sealing lip body 52 has three mutually parallel lip webs 54. As a result, even if the sealing lip body 52 is damaged, it is largely ensured that a liquid-tight and pressure-tight seal is maintained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasket Seals (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
EP08170044A 2008-01-18 2008-11-27 Refroidisseur de moteur à combustion interne Not-in-force EP2080979B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008005095A DE102008005095B4 (de) 2008-01-18 2008-01-18 Verbrennungsmotor-Kühler

Publications (2)

Publication Number Publication Date
EP2080979A1 true EP2080979A1 (fr) 2009-07-22
EP2080979B1 EP2080979B1 (fr) 2011-04-20

Family

ID=40510495

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08170044A Not-in-force EP2080979B1 (fr) 2008-01-18 2008-11-27 Refroidisseur de moteur à combustion interne

Country Status (3)

Country Link
EP (1) EP2080979B1 (fr)
AT (1) ATE506584T1 (fr)
DE (2) DE102008005095B4 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2923857A1 (de) 1978-06-15 1980-01-03 Ferodo Sa Anordnung eines expansionsgefaesses und einer wasserwanne fuer waermeaustauscher, beispielsweise fuer den kuehler eines automobiles
FR2579311A1 (fr) * 1985-03-20 1986-09-26 Valeo Echangeur de chaleur pour vehicule automobile, en particulier du type a gaz d'echappement
FR2742530A1 (fr) * 1995-12-13 1997-06-20 Valeo Thermique Moteur Sa Dispositif et procede d'assemblage d'une plaque collectrice et d'une boite a eau d'echangeur de chaleur
DE102005045103B3 (de) * 2005-09-21 2006-12-28 Pierburg Gmbh Kühlvorrichtung für eine Verbrennungskraftmaschine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3201156A (en) * 1960-11-07 1965-08-17 John N Coats Pipe coupling having clamping force adjusting means
DE2923486C2 (de) * 1979-06-09 1982-08-26 Goetze Ag, 5093 Burscheid Flachdichtung, insbesondere Zylinderkopfdichtung
DE3544588A1 (de) * 1985-12-17 1987-06-25 Bruss Dichtungstechnik Elastomerdichtung fuer waermetauscher
US5050764A (en) * 1990-03-08 1991-09-24 Pacesetter Infusion, Ltd. Lateral compression sealing system and method of making seal
DE4243495C5 (de) * 1992-12-22 2010-02-18 Behr Gmbh & Co. Kg Elastomere Dichtung für Wärmetauscher
GB2292451B (en) * 1994-08-18 1998-04-01 Moulded Plastics Radiator header tank
JPH11126648A (ja) * 1997-10-21 1999-05-11 Yazaki Corp パッキンの保持構造
GB9802761D0 (en) * 1998-02-11 1998-04-08 Raychem Sa Nv Sealing arrangement
EP1415101B1 (fr) * 2001-07-30 2005-10-26 Koninklijke Philips Electronics N.V. Dispositif comprenant un joint d'etancheite place entre deux elements constitutifs

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2923857A1 (de) 1978-06-15 1980-01-03 Ferodo Sa Anordnung eines expansionsgefaesses und einer wasserwanne fuer waermeaustauscher, beispielsweise fuer den kuehler eines automobiles
FR2579311A1 (fr) * 1985-03-20 1986-09-26 Valeo Echangeur de chaleur pour vehicule automobile, en particulier du type a gaz d'echappement
FR2742530A1 (fr) * 1995-12-13 1997-06-20 Valeo Thermique Moteur Sa Dispositif et procede d'assemblage d'une plaque collectrice et d'une boite a eau d'echangeur de chaleur
DE102005045103B3 (de) * 2005-09-21 2006-12-28 Pierburg Gmbh Kühlvorrichtung für eine Verbrennungskraftmaschine

Also Published As

Publication number Publication date
DE102008005095A1 (de) 2009-07-30
DE502008003264D1 (de) 2011-06-01
DE102008005095B4 (de) 2011-10-20
EP2080979B1 (fr) 2011-04-20
ATE506584T1 (de) 2011-05-15

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