EP1805470B1 - Echangeur thermique, notamment radiateur pour vehicules a moteur - Google Patents

Echangeur thermique, notamment radiateur pour vehicules a moteur Download PDF

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Publication number
EP1805470B1
EP1805470B1 EP05797706A EP05797706A EP1805470B1 EP 1805470 B1 EP1805470 B1 EP 1805470B1 EP 05797706 A EP05797706 A EP 05797706A EP 05797706 A EP05797706 A EP 05797706A EP 1805470 B1 EP1805470 B1 EP 1805470B1
Authority
EP
European Patent Office
Prior art keywords
piston
heat exchanger
channel
sections
conical
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.)
Not-in-force
Application number
EP05797706A
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German (de)
English (en)
Other versions
EP1805470A1 (fr
Inventor
Vladyslav Kuniavskyi
Matthias SCHÜLE
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
Original Assignee
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP1805470A1 publication Critical patent/EP1805470A1/fr
Application granted granted Critical
Publication of EP1805470B1 publication Critical patent/EP1805470B1/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
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/0002—Means for connecting central heating radiators to circulation pipes
    • F24D19/0073—Means for changing the flow of the fluid inside a radiator
    • 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
    • F01P11/0204—Filling
    • 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
    • F01P11/0276—Draining or purging
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
    • 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
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • 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
    • F01P2003/182—Arrangements or mounting of liquid-to-air heat-exchangers with multiple heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/06—Derivation channels, e.g. bypass

Definitions

  • the invention relates to a heat exchanger, in particular a coolant radiator for motor vehicles according to the preamble of claim 1 and the independent claim 2, known by the DE-A-10019029 ,
  • Coolant radiators for motor vehicles are used to cool an internal combustion engine and are connected to a coolant circuit, which consists essentially of a radiator inlet or engine return, a radiator return or engine flow with coolant pump and a bypass with thermostatic valve.
  • a coolant circuit multiple secondary circuits are often connected, z.
  • the individual circuits have different temperature levels and therefore separated from each other in the cooler by separate chambers.
  • the chambers are part of the collector of the radiator and are separated by partitions. When filling or emptying the coolant radiator or the coolant circuit, the individual chambers should communicate with each other, so that a faster and uniform filling without air pockets and also a faster emptying is possible.
  • the DE-A 10019029 suggests that the actuator is designed as an axially adjustable piston between an open and a closed position and that the cross sections of the connecting channel and the piston are formed differently in the region of the connection openings.
  • the piston can thus be brought by axial displacement, which requires only small adjustment forces, in a discharge or filling position, in which communicate all chambers via the connection openings in the connecting channel with each other.
  • the piston can be brought by axial displacement in the closed position, in which all chambers are sealed from each other.
  • the cross sections of the connecting channel and the piston are formed decreasing from a first outermost connection opening to a second outermost connection opening, wherein the first and the second outermost connection opening are opposite to each other and optionally further connection openings are arranged along the connection channel between the outermost connection openings.
  • a heat exchanger in particular coolant radiator of the type mentioned above to improve such that the chambers are sufficiently sealed in the closed state of the actuator against each other and are connected to each other with sufficient cross-section.
  • the connecting channel is designed as a stepped channel and the piston as a stepped piston.
  • annular gaps are formed in the region of the connecting openings, which are sealed against each other in the closed position and in the open position, d. H. communicate with each other after axial displacement of the stepped piston.
  • the piston at three connection openings on three stages which form three annular gaps, which form a contiguous gap after retraction of the stepped piston.
  • the sealing of the annular gaps takes place by means of arranged on the stepped piston O-rings, which slide on the inner wall of the step channel during the axial movement of the stepped piston.
  • At least one connecting opening is arranged in the axial direction of the piston, so that more connecting openings are connectable than annular gaps are present.
  • four connection openings can then be connected to one another with a three-stage piston.
  • portions of the connecting channel and the piston are conical.
  • the piston bears against the conical inner wall of the connecting channel and thus closes the connecting openings - the chambers are thus sealed against each other.
  • the open position which is achieved by axially retracting the conical piston, there is an annular gap between the outer surface of the piston and the inner surface of the connecting channel, which brings the connection openings in fluid communication with each other.
  • sealing rings or sealing ribs are arranged on the circumference of the piston, which improve the seal, without thereby the adjustment forces are increased significantly.
  • the taper is to be chosen so that on the one hand a good seal and on the other hand easy release from the sealing or closed position is possible.
  • the piston whether it is a stepped piston or a conical piston, at its outer end a mounting portion which is inserted into a corresponding closure opening in the collecting box.
  • the attachment portion is a threaded portion on the piston and the closure opening in the collection box a threaded bore. The piston is thus screwed into the thread, whereby at the same time the required axial movement for achieving an open and a closed position is effected.
  • the rotational movement of the piston for axial adjustment can be done via a hexagon socket on the outer end face of the piston.
  • Fig. 1 shows a coolant radiator 1 with an air-cooled radiator block 2.
  • the radiator block 2 consists of cooling tubes 3, in particular flat tubes, between which corrugated fins, not shown, are arranged. Laterally, the radiator block 2 is completed by side panels 4.
  • the cooling pipes 3 open into an upper collecting or coolant box 5 and a lower collecting or coolant box 6.
  • the entry of the coolant takes place via an inlet connection 7 at the upper collecting box 5, and the outlet takes place
  • the coolant radiator 1 is connected to a coolant circuit, not shown, for an internal combustion engine of a motor vehicle and is installed with vertically arranged cooling tubes 3 in the vehicle, ie flows through from top to bottom of the coolant.
  • this coolant radiator 1 further secondary circuits, not shown here, for example, for cooling a charge air cooler or an oil cooler can be connected.
  • Fig. 2 shows the lower collection box 6 without radiator block 2 in a plan view, ie looking in the interior of the collecting tank 6, which has a rectangular plan and is bounded by two longitudinal sides 6a, 6b and two narrow sides 6c, 6d.
  • the entire box 6 is divided by two longitudinal partitions 9, 10 and by a transverse partition 11 in four chambers 12, 13, 14, 15.
  • a connecting channel 16 is arranged, which has four connecting openings 17, 18, 19, 29 which are in fluid communication with the chambers 12, 13, 14, 15.
  • the connection opening 29 is arranged on the front side, ie in the axial direction of the piston, on the connecting channel.
  • the chambers 12, 13 and 14 are connected via coolant connections 20 and 21 with secondary circuits, not shown.
  • Fig. 3 shows a section through the connecting channel 16 in the plane of the transverse partition wall 11 in Fig. 2 ,
  • the connecting channel 16 is of stepped design, ie as a stepped channel with different diameters D0, D1, D2, D3, where D0 ⁇ D1 ⁇ D2 ⁇ D3.
  • the connecting channel 16 thus has four cylindrical sections 22, 23, 24, 28 which are interconnected by steps 25A, 25, 26. At the section 24 connects to the outside a threaded bore 27.
  • Fig. 4 shows a further step channel 16 with an inserted stepped piston 30, which has three cylindrical sections 31, 32, 33, 33A with increasing diameters d1, d2, d3, d4.
  • the piston 30 has at its end a threaded portion 34 which is screwed into the threaded bore 27 of the connecting channel 16.
  • the piston 30 has a flange 35, which serves as a stop when screwing.
  • the single ones Diameter sections 31, 32, 33, 33A are interconnected via chamfered steps 36, 37, 38.
  • On each diameter portion 31, 32, 33, 33A are annular grooves 39 for receiving sealing rings, so-called O-rings 40.
  • the piston 30 is screwed in the position shown to the stop of the flange 35 in the stepped channel and forms with this in the area the connecting openings 17,18, 19 annular gaps 41, which are, however, sealed to each other, the connection opening 29 and the thread 34 by sealing rings 40.
  • the chambers 12, 13, 14, 15 connected via the connection openings 17, 18, 19, 29 and the connecting channel 16, also called connecting chamber are in particular gas-, liquid- and pressure-tight against each other and outwards towards the thread 34 in the valve position shown sealed.
  • Fig. 5 shows the step channel 16 with the stepped piston 30 in the open position, that is, the piston 30 is axially displaced by rotation as a result of the threaded portion 34 to the right, the threaded portion 34 and the flange 35 are in front of the displacement to the outside.
  • a profile 44 for example, a hexagon socket, Phillips, external hexagon or the like is incorporated, so that the piston 30 can be rotated by means of a key and thus moved axially.
  • the piston 30 is sealed to the outside by a sealing ring 40.
  • An anchoring part 45 which consists of two elastically deformable legs 45a, 45b with end locking lugs, which form a stop when the piston is extended, preferably adjoins the inner piston section 31 with the smallest diameter.
  • the annular gaps 41, 42, 43 are interconnected and thus form a continuous annular gap, in which the connection openings 17, 18, 19, 29 open.
  • the chambers 12, 13, 14, 15 connected via the connection openings 17, 18, 19, 29 and the connecting channel 16 are connected to one another in the valve position shown and are further sealed outward from the thread 34. This allows the corresponding chambers communicate with each other.
  • the annular gap 41 is followed inwardly by a further annular chamber 46, via which a fluid connection with the chamber 15 of the collecting tank 6 can be produced.
  • Adjusting the piston 30 in the closed position according to Fig. 4 takes place in that the threaded portion 34 of the piston 30 is screwed into the threaded hole 27.
  • the piston 30 moves in the drawing to the left until the O-rings 40 again come into contact with the inner wall of the step channel 16 and thus again produce a seal between the individual annular gaps 41, 42, 43.
  • Fig. 6 shows a further embodiment of the invention, in the form of a conically shaped connecting channel 50 and a conically shaped piston 51, wherein the connecting openings are again denoted by 17, 18, 19, 29.
  • the connecting channel 50 has a conical section 50a, at the narrowest cross-section of which a cylindrical section 50b connects, which opens via the connecting opening 29 into the chamber 15.
  • another cylindrical section 50c adjoins, in whose outer region an internal thread 50d is incorporated.
  • the piston 51 has a head 51 a, which is formed similar to the previous embodiment, ie with a threaded portion, a flange, an inner profile and a sealing ring 40 which slides on the inner wall of the cylindrical portion 50 c.
  • a conical piston portion 51 b behind the O-ring 40 which abuts fully and over the entire length of the inner wall of the conical portion 50 a of the connecting channel 50.
  • Fig. 7 shows the embodiment according to Fig. 6 with displaced piston 51, ie the piston is unscrewed by the adjustment x from the connecting channel 50, but still sealed by the O-ring 40.
  • a "conical" annular gap 52 has been created with an increasing diameter from inside to outside.
  • the conical piston portion 51 b has on his Unfang a plurality of successively arranged sealing rings 53, which better seal against the inner wall of the conical portion 50a and thus also effective sealing of the connecting openings 17, 18, 19, 29 effect each other in the closed position of the piston 51.
  • the adjustment of the piston 51 in the closed position takes place by screwing the piston head 51 a in the thread 50d to the path x, the piston is again driven to stop. Any tolerance für undergraduatean be compensated by the elasticity of the sealing rings 53.
  • valve arrangement according to the invention can also be used elsewhere.
  • valve arrangement or the heat exchanger according to the invention is suitable for liquid as well as for gaseous fluids.
  • the heat exchanger according to the invention can be used in particular as intercooler, oil cooler, radiator, preferably for air, land, and / or sea vehicles.

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

Claims (7)

  1. Echangeur de chaleur, en particulier radiateur à liquide de refroidissement pour des véhicules automobiles, comprenant un ou plusieurs bacs collecteurs (5, 6), où au moins un bac collecteur (6) présente plusieurs chambres (12, 13, 14, 15) cloisonnées entre elles par des parois de réparation (9, 10, 11), chambres entre lesquelles peut être établie une communication fluidique, si nécessaire au moyen d'un actionneur mobile, via en particulier des ouverture de communication disposée dans un conduit de communication, ou l'actionneur est configuré comme un piston (30, 51) réglable axialement entre une position d'ouverture et une position de fermeture, et les sections du conduit de communication (16, 50) ainsi que du piston (30, 51) sont configurées de façon différente dans la zone des ouverture de communication (17, 18, 19), en particulier en diminuant depuis une première ouverture de communication située le plus à l'extérieur, jusqu'à une deuxième ouverture de communication située le plus à l'extérieur, et le conduit de communication est configuré comme un conduit en gradins (16, 22, 23, 24), le piston étant configuré comme un piston différentiel (30, 31, 32, 33),
    caractérisé en ce que le conduit en gradins (16) présente, dans la zone de l'ouverture de communication (17, 18, 19), des chambres (22, 23, 24) de sections différentes (D1, D2, D3), le piston différentiel (30) présentent des parties de piston (31, 32, 33) de sections différentes (D1, D2, D3), où des fentes annulaires (41, 42, 43) sont laissées entre les chambres (22, 23, 24) et les parties de piston (31, 32, 33), fentes annulaires qui, en position de fermeture, sont rendues étanchés entre elles et, en position d'ouverture, forment des espaces communiquant entre eux.
  2. Echangeur de chaleur, en particulier radiateur à liquide de refroidissement pour des véhicules automobiles, comprenant un ou plusieurs bacs collecteurs (5, 6), où au moins un bac collecteur (6) présente plusieurs chambres (12, 13, 14, 15) cloisonnées entre elles par des parois de séparation (9, 10, 11), chambres entre lesquelles peut être établie une communication fluidique, si nécessaire au moyen d'un actionneur mobile, via en particulier des ouvertures de communication disposées dans un conduit de communication, ou l'actionneur est configuré comme un piston (30, 51) réglable axialement entre une position d'ouverture et une position de fermeture, et les sections du conduit de communication (16, 50) ainsi que du piston (30, 51) sont configurées de façon différente dans la zone des ouvertures de communication (17, 18, 19), en particulier en diminuant depuis une première ouverture de communication située le plus à l'extérieur, jusqu'à une deuxième ouverture de communication située le plus à l'extérieur,
    caractérisé en ce que le conduit de communication (50) et le piston (51) présentent respectivement des parties cloniques (50a, 51b), et une multiplicité de bagues d'étanchéité (53) est disposée sur la partie conique (51b) du piston.
  3. Echangeur de chaleur selon la revendication 1 ou 2, caractérisé en ce que le conduit de communication (16, 50) présente une ouverture d'obturation (27, 50d) disposée extérieurement, couverture d'obturation qui loge une partie de fixation (34, 51a) du piston (30, 51).
  4. Echangeur de chaleur selon la revendication 1, 2 ou 3, caractérisé en ce que le conduit de communication présente une ouverture d'alimentation et / ou d'évacuation (29, 50d) disposée à l'intérieur (15) du bac collecteur (6).
  5. Echangeur de chaleur selon la revendication 1 ou selon l'une des revendications 3 ou 4, dans la mesure où celles-ci se rapportent à la revendication 1, caractérisé en ce que les fentes annulaires (41, 42, 43) sont rendues étanches par des bagues d'étanchéité (40) disposées sur le piston différentiel (30).
  6. Echangeur de chaleur selon la revendication 2 ou selon l'une des revendications 3 ou 4, dans la mesure où celles-ci se rapportent à la revendication 2, caractérisé en ce que le piston (51), par sa partie conique (51b), est, en position de fermeture, en appui sur la partie conique (50a) du conduit de communication (51) et, en position d'ouverture, libère une fente annulaire conique (52).
  7. Echangeur de chaleur selon la revendication 3, caractérisé en ce que l'ouverture d'obturation est configurée comme un perçage fileté (27, 50d), la partie de fixation étant configurée comme une partie filetée (34, 51a).
EP05797706A 2004-10-14 2005-10-12 Echangeur thermique, notamment radiateur pour vehicules a moteur Not-in-force EP1805470B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004050159A DE102004050159A1 (de) 2004-10-14 2004-10-14 Wärmeübertrager, insbesondere Kühlmittelkühler für Kraftfahrzeuge
PCT/EP2005/010978 WO2006042680A1 (fr) 2004-10-14 2005-10-12 Echangeur thermique, notamment radiateur pour vehicules a moteur

Publications (2)

Publication Number Publication Date
EP1805470A1 EP1805470A1 (fr) 2007-07-11
EP1805470B1 true EP1805470B1 (fr) 2012-04-25

Family

ID=35695521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05797706A Not-in-force EP1805470B1 (fr) 2004-10-14 2005-10-12 Echangeur thermique, notamment radiateur pour vehicules a moteur

Country Status (5)

Country Link
US (1) US8210244B2 (fr)
EP (1) EP1805470B1 (fr)
AT (1) ATE555359T1 (fr)
DE (1) DE102004050159A1 (fr)
WO (1) WO2006042680A1 (fr)

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KR101283591B1 (ko) * 2011-09-19 2013-07-05 현대자동차주식회사 차량용 열교환기
US20140290923A1 (en) * 2013-04-01 2014-10-02 Caterpillar Inc. Cooling system
KR102228203B1 (ko) * 2014-07-31 2021-03-17 한온시스템 주식회사 오일쿨러
US10690233B2 (en) * 2016-07-27 2020-06-23 Ford Global Technologies, Llc Bypass control for U-flow transmission oil coolers
GB2601773B (en) * 2020-12-09 2023-03-29 Helical Energy Ltd A heat exchange unit
CN113048832A (zh) 2021-04-15 2021-06-29 惠州汉旭五金塑胶科技有限公司 集液盒注液口一体成型结构及其制作工艺

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Also Published As

Publication number Publication date
WO2006042680A1 (fr) 2006-04-27
ATE555359T1 (de) 2012-05-15
US8210244B2 (en) 2012-07-03
US20080029253A1 (en) 2008-02-07
DE102004050159A1 (de) 2006-04-27
EP1805470A1 (fr) 2007-07-11

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