EP1805470A1 - Heat exchanger, in particular radiator for motor vehicles - Google Patents

Heat exchanger, in particular radiator for motor vehicles

Info

Publication number
EP1805470A1
EP1805470A1 EP05797706A EP05797706A EP1805470A1 EP 1805470 A1 EP1805470 A1 EP 1805470A1 EP 05797706 A EP05797706 A EP 05797706A EP 05797706 A EP05797706 A EP 05797706A EP 1805470 A1 EP1805470 A1 EP 1805470A1
Authority
EP
European Patent Office
Prior art keywords
piston
heat exchanger
channel
exchanger according
connecting channel
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
EP05797706A
Other languages
German (de)
French (fr)
Other versions
EP1805470B1 (en
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/en
Application granted granted Critical
Publication of EP1805470B1 publication Critical patent/EP1805470B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

  • Heat exchanger in particular coolant radiator for motor vehicles
  • the invention relates to a heat exchanger, in particular ademit ⁇ telkühler for motor vehicles according to the preamble of claim 1 - known from DE-A 100 41 122 of the application erin.
  • Coolant radiators for motor vehicles are used to cool a 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 thermostat valve.
  • a coolant circuit are often Mau ⁇ circuits connected, z.
  • the individual circuits aufwei ⁇ sen different temperature level and therefore separated from each other in the cooler by separate chambers.
  • the chambers are part of headers of the cooler and are separated by partitions.
  • the individual chambers should communicate with one another, so that faster and uniform filling without air inclusions and also faster emptying is possible.
  • Er ⁇ invention provides that the actuator is designed as axially adjustable between an open and a closed position piston 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 into a discharge or filling position by axial displacement, which requires only small adjustment forces, in which all chambers communicate with one another via the connection openings in the connection channel.
  • the piston can be brought by axial displacement in the closed position, in which all chambers are sealed against each other.
  • the cross-sections of the connecting channel and the piston from a first outermost connection opening to a second outermost
  • connection opening Formed decreasing connection opening, wherein the first and the second outermost connection opening are opposite to each other and given if further connection openings are arranged along the connection channel between the outermost connection openings.
  • the dacasungska- 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 has 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 O-rings arranged on the stepped piston, which slide on the inner wall of the stepped channel during the axial movement of the stepped pistons.
  • connection opening is arranged in the axial direction of the piston, so that more connecting openings can be connected than there are annular gaps. For example, four connection openings can then be connected to one another with a three-stage piston.
  • Ab ⁇ sections of the connecting channel and the piston are conical.
  • the piston bears against the conical inner wall of the connection channel and thus closes the connection 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 appreciably increasing the adjusting forces.
  • 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 Befest Trentsab ⁇ cut a threaded portion on the piston and the closure opening in the collecting box is a threaded bore.
  • the piston is thus screwed into the thread, whereby at the same time the required axial movement is effected for the achievement of an open and a closed position.
  • the rotary movement of the piston for axial adjustment can take place via an internal hexagon on the outer end face of the piston.
  • FIG. 1 shows a coolant radiator
  • Fig. 2 is a collection box of the coolant radiator with several
  • Chambers, Fig. 3 is a section through a step-shaped
  • Fig. 4 shows the tap channel with an inserted stepped piston in
  • Fig. 5 shows the stepped channel with inserted stepped piston in the open position
  • Fig. 6 is a conical connecting channel with a conical piston in the closed position
  • Fig. 7 shows the conical connecting channel with conical
  • 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 of flat tubes, between which corrugated fins, not shown, are arranged. Laterally, the radiator block 2 is completed by side panels 4.
  • the cooling tubes 3 mün ⁇ into an upper collecting or coolant box 5 and a lower collection or coolant box 6.
  • Thedeffen ⁇ cooler 1 is connected to a not shown coolant circuit for a Brenn ⁇ 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 looks, d. H. with a view into the interior of the collecting tank 6, which has a rectangular plan and is delimited 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 hen in fluid communication with the chambers 12, 13, 14, 15 hen ⁇ .
  • the connection opening 29 is arranged on the front side, ie in Kolbenaxial ⁇ direction, on the connecting channel.
  • the chambers 12, 13 and 14 are connected via coolant ports 20 and 21 with subcircuits, 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 formed in a stepped shape, d. H. as a stepped channel with different diameters DO, D1, D2, D3, where DO ⁇ D1 ⁇ D2 ⁇ D3.
  • the connecting channel 16 thus has four cylindrical sections 22, 23, 24, 28 which are connected by steps 25A, 25, 26 mit ⁇ each other. At the section 24 connects to the outside a threaded bore 27.
  • FIG. 4 shows a further stepped channel 16 with an inserted stepped piston 30, which has three cylindrical sections 31, 32, 33, 33A with rising 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 Ver ⁇ .
  • the piston 30 has a flange 35, which serves as a stop when screwing.
  • the individual NEN diameter portions 31, 32, 33, 33 A are connected via chamfered steps 36, 37, 38 with each other.
  • connection openings 17,18, 19 annular gap 41 which, however, are sealed with each other, the connection opening 29 and the thread 34 by sealing rings 40.
  • the chambers 12, 13, 14, 15 connected via the connecting openings 17, 18, 19, 29 and the connecting channel 16, also called connection chamber are in particular gas, liquid and pressure tight in the shown valve position ⁇ sealed against each other and outwards to the thread 34.
  • FIG. 5 shows the step channel 16 with the stepped piston 30 in the open position, ie the piston 30 is displaced axially to the right by rotation as a result of the threaded section 34; the threaded section 34 and the flange 35 project outward about the adjustment path s.
  • a profile 44 for example, a hexagon socket, funnel ⁇ slot, external hexagon or the like 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 into 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.
  • the corresponding chambers can 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.
  • the adjustment of the piston 30 in the closed position shown in 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 make a seal between the individual annular gaps 41, 42, 43.
  • FIG. 6 shows a further exemplary embodiment of the invention, specifically in the form of a conically shaped connecting channel 50 and of a piston 51 formed in a manner of a piston, wherein the connecting openings are again designated 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 into the chamber 15 via the connecting opening 29.
  • a further cylindrical portion 50c adjoins, in the outer region of an internal thread 5Od is incorporated.
  • the piston 51 has a head 51 a, which is formed similarly to the previous embodiment Aus ⁇ , d. H.
  • connection openings 17, 18, 19, 29 are closed and the associated chambers separated from each other.
  • FIG. 7 shows the exemplary embodiment according to FIG. 6 with displaced piston 51, ie the piston is unscrewed from the connecting channel 50 by the adjustment path x, but is still sealed by the O-ring 40.
  • a "conical" annular gap 52 having a diameter increasing from the inside outwards has been formed, whereby the connection openings 17, 18, 19, 29 can communicate with one another, ie also
  • the conical piston section 51b points to its nem Unfang a plurality of successively arranged sealing rings 53, the ih n against the inner wall of the conical portion 50a better sealing n and thus effectively sealing the connection 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 51a in the thread 5Od to the path x, the piston is again driven to stop. Any tolerance differences are compensated by the elasticity of the sealing rings 53.
  • valve arrangement can also be used elsewhere.
  • valve arrangement or the heat exchanger according to the invention is suitable for liquid and gaseous fluids.
  • the heat exchanger according to the invention can be used in particular as a charge air cooler, oil cooler, radiator, be ⁇ preferred for air, land, and / or sea vehicles.

Landscapes

  • 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)

Abstract

The invention relates to a heat exchanger, in particular a radiator for motor vehicles, comprising a black consisting of tubes and ribs and a lower and upper collection chamber, the lower collection chamber having several chambers which are separated from one another by partitions and between which a fluidic connection can be established. If necessary, by means of a displaceable actuator via connection orifices (17, 18, 19) that are located in a connection channel (16). According to the invention, the actuator is configured as a piston (30) that can be displaced axially between an open and a closed position and the cross-sections of the connection channel (16) and the piston (30) taper from the exterior to the interior in the vicinity of the connection orifices (17, 18, 19).

Description

Wärmeübertrager, insbesondere Kühlmittelkühler für Kraftfahrzeuge Heat exchanger, in particular coolant radiator for motor vehicles
Die Erfindung betrifft einen Wärmeübertrager, insbesondere einen Kühlmit¬ telkühler für Kraftfahrzeuge nach dem Oberbegriff des Patentanspruches 1 - bekannt durch de DE-A 100 41 122 der Anmeld erin.The invention relates to a heat exchanger, in particular a Kühlmit¬ telkühler for motor vehicles according to the preamble of claim 1 - known from DE-A 100 41 122 of the application erin.
Kühlmittelkühler für Kraftfahrzeuge dienen der Kühlung eines Verbren¬ nungsmotors und sind mit einem Kühlmittelkreϊslauf verbunden, der im We¬ sentlichen aus einem Kühlervorlauf bzw. Motorrücklauf, einem Kühlerrück- lauf bzw. Motorvorlauf mit Kühlmittelpumpe sowie einem Bypass mit Ther¬ mostatventil besteht. Einem solchen Kühlmittel kreislauf sind vielfach Neben¬ kreisläufe angeschlossen, z. B. für einen Ladeluftkühler oder einen Ölkühler, wobei die einzelnen Kreisläufe unterschiedliches Temperaturniveau aufwei¬ sen und daher im Kühler durch separate Kammern voneinander getrennt werden. Die Kammern sind Teil von Sammelkästen der Kühler und sind durch Trennwände voneinander abgeteilt. Beim Befüllen oder Entleeren des Kühlmittelkühlers bzw. des Kühlmittelkreislaufes sollen die einzelnen Kam¬ mern miteinander kommunizieren, damit ein schnelleres und gleichmäßiges Befüllen ohne Lufteinschlüsse und ebenso ein schnelleres Entleeren möglich ist.Coolant radiators for motor vehicles are used to cool a 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 thermostat valve. Such a coolant circuit are often Neben¬ circuits connected, z. As for a charge air cooler or an oil cooler, the individual circuits aufwei¬ sen different temperature level and therefore separated from each other in the cooler by separate chambers. The chambers are part of headers of the cooler and are separated by partitions. When filling or emptying the coolant radiator or the coolant circuit, the individual chambers should communicate with one another, so that faster and uniform filling without air inclusions and also faster emptying is possible.
In der DE-A 100 41 122 wurde daher vorgeschlagen, die einzelnen Kam¬ mern eines Sammelkastens durch einen Kanal miteinander zu verbinden, wobei jede Kammer über eine Verbindungsöffnung mit dem Kanalinneren in Fluidverbindung steht. In dem hohlzylindrischa ausgebildeten Kanal ist ein Rohrstutzen mit Verbindungsöffnungen einsetzbar, welche in gleichen Posi¬ tionen wie die Öffnungen im Verbindungskanal angeordnet sind. Durch Dre¬ hung des Rohrstutzens um seine Längsachse können diese Öffnungen ei¬ nerseits zur Deckung gebracht werden, sodass alle Kammern miteinander kommunizieren, und andererseits durch weitere Drehung verschlossen wer¬ den. Nachteilig bei dieser Lösung ist, dass im geschlossenen Zustand die Abdichtung der einzelnen Kammern gegeneinander unzureichend ist, weil diese Dichtung nur über den Spalt zwischen Rohrstutzen und Kanalinnen¬ wand erfolgt. Der Spalt muss daher relativ gering gewählt werden, woraus sich wiederum relativ hohe Verstellkräfte zum Verstellen dieses Stellgliedes ergeben. Zudem ist unter Umständen der Einsatz aufwendig gestalteter Spezialdichtelemente für eine dauerhafte vollständige Dichtheit erforderlich.It has therefore been proposed in DE-A 100 41 122 to connect the individual chambers of a collecting tank to one another via a channel, wherein each chamber is in fluid communication with the channel interior via a connecting opening. In the hollow cylinder formed channel is a Can be used with connecting openings, which are arranged in the same posi¬ tions as the openings in the connecting channel. By rotation of the pipe socket about its longitudinal axis, these openings can be brought into coincidence on the one hand, so that all the chambers communicate with one another, and on the other hand they are closed by further rotation. A disadvantage of this solution is that in the closed state, the sealing of the individual chambers against each other is insufficient, because this seal is made only over the gap between pipe socket and Kanalinnen¬ wall. The gap must therefore be chosen to be relatively low, which in turn results in relatively high adjustment forces for adjusting this actuator. In addition, under certain circumstances, the use of elaborately designed special sealing elements for a permanent complete tightness is required.
Es ist daher Aufgabe der vorliegenden Erfindung, einen Wärmeübertrager, insbesondere Kühlmittelkühler der eingangs genannten Art derart zu verbes¬ sern, dass die Kammern bei geschlossenen Zustand des Stellgliedes hinrei¬ chend gegeneinander abgedichtet sind und mit hinreichendem Querschnitt miteinander verbindbar sind.It is therefore the object of the present invention to improve a heat exchanger, in particular a coolant cooler of the type mentioned above, in such a way that the chambers are sufficiently sealed against one another when the actuator is closed and can be connected to one another with sufficient cross-section.
Diese Aufgabe wird durch die Merkmale des Patentanspruches 1 gelöst. Er¬ findungsgemäß ist vorgesehen, dass das Stellglied als axial zwischen einer Offen- und einer Schließstellung verstellbarer Kolben ausgebildet ist und dass die Querschnitte des Verbindungskanals und des Kolbens im Bereich der Verbindungsöffnungen unterschiedlich ausgebildet sind. Der Kolben kann somit durch Axialverschiebung, welche nur geringe Verstellkräfte erfor¬ dert, in eine Ablass- bzw. Füllstellung gebracht werden, bei welcher sämtli¬ che Kammern über die Verbindungsöffnungen in dem Verbindungskanal mit einander kommunizieren. Ebenso kann der Kolben durch Axialverschiebung in die Schließstellung gebracht werden, bei welcher sämtliche Kammern ge- geneinander abgedichtet sind.This object is solved by the features of claim 1. Er¬ invention provides that the actuator is designed as axially adjustable between an open and a closed position piston 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 into a discharge or filling position by axial displacement, which requires only small adjustment forces, in which all chambers communicate with one another via the connection openings in the connection channel. Likewise, the piston can be brought by axial displacement in the closed position, in which all chambers are sealed against each other.
Bevorzugt sind die Querschnitte des Verbindungskanals und des Kolbens von einer ersten äußersten Verbindungsöffnung zu einer zweiten äußerstenPreferably, the cross-sections of the connecting channel and the piston from a first outermost connection opening to a second outermost
Verbindungsöffnung abnehmend ausgebildet, wobei die erste und die zweite äußerste Verbindungsöffnung einander gegenüber liegen und gegebenen- falls weitere Verbindungsöffnungen entlang des Verbindungskanals zwi¬ schen den äußersten Verbindungsöffnungen angeordnet sind.Formed decreasing connection opening, wherein the first and the second outermost connection opening are opposite to each other and given if further connection openings are arranged along the connection channel between the outermost connection openings.
Nach einer vorteilhaften Ausgestaltung der Erfindung ist der Verbindungska- nal als Stufenkanal und der Kolben als Stufenkolben ausgebildet. Durch jede Stufe werden im Bereich der Verbindungsöffnungen Ringspalte gebildet, welche in der Schließstellung gegeneinander abgedichtet sind und in der Offenstellung, d. h. nach Axialverschiebung des Stufenkolbens miteinander kommunizieren. Beispielsweise weist der Kolben bei drei Verbindungsöff- nungen drei Stufen auf, die drei Ringspalte bilden, welche nach dem Zurück¬ ziehen des Stufenkolbens einen zusammenhängenden Spalt bilden. Vorteil¬ hafterweise erfolgt die Abdichtung der Ringspalte untereinander durch auf dem Stufenkolben angeordnete O-Ringe, die an der Innenwandung des Stufenkanals bei der Axialbewegung der Stufenkolben gleiten.According to an advantageous embodiment of the invention, the Verbindungsungska- channel is designed as a stepped channel and the piston as a stepped piston. Through each step 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. For example, in the case of three connection openings, the piston has three stages, which form three annular gaps, which form a contiguous gap after retraction of the stepped piston. Advantageously, the sealing of the annular gaps takes place by means of O-rings arranged on the stepped piston, which slide on the inner wall of the stepped channel during the axial movement of the stepped pistons.
Nach einer vorteilhaften Ausgestaltung ist zumindest eine Verbindungsöff¬ nung in Axialrichtung des Kolbens angeordnet, so dass mehr Verbin¬ dungsöffnungen verbindbar sind als Ringspalte vorhanden sind. Beispiels¬ weise sind mit einem dreistufigen Kolben dann vier Verbindungsöffnungen miteinander verbindbar.According to an advantageous embodiment, at least one connection opening is arranged in the axial direction of the piston, so that more connecting openings can be connected than there are annular gaps. For example, four connection openings can then be connected to one another with a three-stage piston.
Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung sind Ab¬ schnitte des Verbindungskanals und des Kolbens konisch ausgebildet. In der Schließstellung liegt der Kolben an der konischen Innenwandung des Ver- bindungskanals an und verschließt damit die Verbindungsöffnungen - die Kammern sind somit gegeneinander abgedichtet. In der Offenstellung, die durch axiales Zurückziehen des konischen Kolbens erreicht wird, besteht zwischen Außenfläche des Kolbens und Innenfläche des Verbindungskanals ein Ringspalt, der die Verbindungsöffnungen miteinander in Fluidverbindung bringt. Damit können die Kammern miteinander kommunizieren. Vorteilhaf¬ terweise sind auf dem Umfang des Kolbens Dichtringe oder Dichtrippen an¬ geordnet, welche die Abdichtung verbessern, ohne dass dadurch die Ver¬ stellkräfte nennenswert erhöht werden. Die Konizität ist so zu wählen, dass einerseits eine gute Abdichtung und andererseits ein leichtes Lösen aus der Abdicht- bzw. Schließstellung möglich ist. - A -According to a further advantageous embodiment of the invention Ab¬ sections of the connecting channel and the piston are conical. In the closed position, the piston bears against the conical inner wall of the connection channel and thus closes the connection openings - the chambers are thus sealed against each other. In 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. This allows the chambers to communicate with each other. Advantageously, sealing rings or sealing ribs are arranged on the circumference of the piston, which improve the seal, without thereby appreciably increasing the adjusting forces. 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. - A -
In vorteilhafter Ausgestaltung der Erfindung weist der Kolben, sei es ein Stufenkolben oder ein konischer Kolben, an seinem äußeren Ende einen Befestigungsabschnitt auf, der in eine entsprechende Verschlussöffnung im Sammelkasten eingesetzt wird. Vorteilhafterweise ist der Befestigungsab¬ schnitt ein Gewindeabschnitt auf dem Kolben und die Verschlussöffnung im Sammelkasten eine Gewindebohrung. Der Kolben wird somit in das Gewin¬ de eingeschraubt, wodurch gleichzeitig die erforderliche Axialbewegung für das Erreichen einer Offen- und einer Schließestellung bewirkt wird. Die Drehbewegung des Kolbens zur axialen Verstellung kann über einen Innen- sechskant auf der äußeren Stirnseite des Kolbens erfolgen.In an advantageous embodiment of the invention, 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. Advantageously, the Befestigungsab¬ cut a threaded portion on the piston and the closure opening in the collecting box is a threaded bore. The piston is thus screwed into the thread, whereby at the same time the required axial movement is effected for the achievement of an open and a closed position. The rotary movement of the piston for axial adjustment can take place via an internal hexagon on the outer end face of the piston.
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im Folgenden genauer beschrieben. Es zeigen Fig. 1 einen Kühlmittelkühler,Embodiments of the invention are illustrated in the drawings and will be described in more detail below. 1 shows a coolant radiator,
Fig. 2 einen Sammelkasten des Kühlmittelkühlers mit mehrerenFig. 2 is a collection box of the coolant radiator with several
Kammern, Fig. 3 einen Schnitt durch einen stufenförmig ausgebildetenChambers, Fig. 3 is a section through a step-shaped
Verbindungskanal (so genannten Stufenkanal) mit Verbindungsöffnungen,Connecting channel (so-called step channel) with connecting openings,
Fig. 4 den Stufenkanal mit einem eingesetzten Stufenkolben inFig. 4 shows the tap channel with an inserted stepped piston in
Schließstellung,Closed position,
Fig. 5 den Stufenkanal mit eingesetztem Stufenkolben in Offenstellung, Fig. 6 einen konisch ausgebildeten Verbindungskanal mit konischem Kolben in Schließstellung undFig. 5 shows the stepped channel with inserted stepped piston in the open position, Fig. 6 is a conical connecting channel with a conical piston in the closed position and
Fig. 7 den konisch ausgebildeten Verbindungskanal mit konischemFig. 7 shows the conical connecting channel with conical
Kolben in Offenstellung.Piston in open position.
Fig. 1 zeigt einen Kühlmittelkühler 1 mit einem luftgekühlten Kühlerblock 2. Der Kühlerblock 2 besteht aus Kühlrohren 3, insbesondere aus Flachrohren, zwischen denen nicht dargestellte Wellrippen angeordnet sind. Seitlich wird der Kühlerblock 2 durch Seitenteile 4 abgeschlossen. Die Kühlrohre 3 mün¬ den in einen oberen Sammel- bzw. Kühlmittelkasten 5 und einen unteren Sammel- bzw. Kühlmittelkasten 6. Der Eintritt des Kühlmittels erfolgt über einen Eintrittsstutzen 7 am oberen Sammelkasten 5, und der Austritt erfolgt über einen Austrittsstutzen 8 am unteren Sammelkasten 6. Der Kühlmittel¬ kühler 1 ist an einen nicht dargestellten Kühlmittelkreislauf für eine Brenn¬ kraftmaschine eines Kraftfahrzeuges anschließbar und wird mit senkrecht angeordneten Kühlrohren 3 im Fahrzeug eingebaut, d. h. von oben nach unten vom Kühlmittel durchströmt. An diesen Kühlmittelkühler 1 sind weitere hier nicht dargestellte Nebenkreisläufe, beispielsweise zur Kühlung eines Ladeluftkühlers oder eines Ölkühlers anschließbar.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 of flat tubes, between which corrugated fins, not shown, are arranged. Laterally, the radiator block 2 is completed by side panels 4. The cooling tubes 3 mün¬ into an upper collecting or coolant box 5 and a lower collection or coolant box 6. The entry of the coolant via an inlet connection 7 at the upper header 5, and the exit occurs The Kühlmittel¬ cooler 1 is connected to a not shown coolant circuit for a Brenn¬ 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. At 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 zeigt den unteren Sammelkasten 6 ohne Kühlerblock 2 in einer Drauf- sieht, d. h. mit Blickrichtung in das Innere des Sammelkastens 6, der einen rechteckförmigen Grundriss aufweist und durch zwei Längsseiten 6a, 6b so¬ wie zwei Schmalseiten 6c, 6d begrenzt wird. Der gesamte Kasten 6 ist durch zwei Längstrennwände 9, 10 und durch eine Quertrennwand 11 in vier Kammern 12, 13, 14, 15 unterteilt. Im Bereich der Quertrennwand 11 ist ein Verbindungskanal 16 angeordnet, der vier Verbindungsöffnungen 17, 18, 19, 29 aufweist, welche mit den Kammern 12, 13, 14, 15 in Fluidverbindung ste¬ hen. Die Verbindungsöffnung 29 ist dabei stirnseitig, also in Kolbenaxial¬ richtung, an dem Verbindungskanal angeordnet. Die Kammern 12, 13 und 14 sind über Kühlmittelanschlüsse 20 und 21 mit nicht dargestellten Neben- kreisläufen verbunden.Fig. 2 shows the lower collection box 6 without radiator block 2 in a plan looks, d. H. with a view into the interior of the collecting tank 6, which has a rectangular plan and is delimited 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. In the region of the transverse partition wall 11, a connecting channel 16 is arranged, which has four connecting openings 17, 18, 19, 29, which hen in fluid communication with the chambers 12, 13, 14, 15 hen¬. The connection opening 29 is arranged on the front side, ie in Kolbenaxial¬ direction, on the connecting channel. The chambers 12, 13 and 14 are connected via coolant ports 20 and 21 with subcircuits, not shown.
Fig. 3 zeigt einen Schnitt durch den Verbindungskanal 16 in der Ebene der Quertrennwand 11 in Fig. 2. Der Verbindungskanal 16 ist stufenförmig aus¬ gebildet, d. h. als Stufenkanal mit unterschiedlichen Durchmessern DO, D1 , D2, D3, wobei DO < D1 < D2 < D3. Der Verbindungskanal 16 weist somit vier zylindrische Abschnitte 22, 23, 24, 28 auf, die durch Stufen 25A, 25, 26 mit¬ einander verbunden sind. An den Abschnitt 24 schließt sich nach außen eine Gewindebohrung 27 an.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 formed in a stepped shape, d. H. as a stepped channel with different diameters DO, D1, D2, D3, where DO <D1 <D2 <D3. The connecting channel 16 thus has four cylindrical sections 22, 23, 24, 28 which are connected by steps 25A, 25, 26 mit¬ each other. At the section 24 connects to the outside a threaded bore 27.
Fig. 4 zeigt einen weiteren Stufenkanal 16 mit einem eingesetzten Stufen¬ kolben 30, welcher drei zylindrische Abschnitte 31 , 32, 33, 33A mit steigen¬ den Durchmessern d1 , d2, d3, d4 aufweist. Der Kolben 30 weist endseitig einen Gewindeabschnitt 34 auf, welcher in die Gewindebohrung 27 des Ver¬ bindungskanals 16 eingeschraubt ist. Stirnseitig weist der Kolben 30 einen Flansch 35 auf, welcher als Anschlag beim Einschrauben dient. Die einzel- nen Durchmesserabschnitte 31 , 32, 33, 33A sind über angefaste Stufen 36, 37, 38 miteinander verbunden. Auf jedem Durchmesserabschnitt 31 , 32, 33, 33A befinden sich Ringnuten 39 zur Aufnahme von Dichtringen, so genann¬ ten O-Ringen 40. Der Kolben 30 ist in der dargestellten Position bis zum An- schlag des Flansches 35 in den Stufenkanal eingeschraubt und bildet mit diesem im Bereich der Verbindungsöffnungen 17,18, 19 Ringsspalte 41 , die jedoch untereinander, zur Verbindungsöffnung 29 und zum Gewinde 34 durch Dichtringe 40 abgedichtet sind. Insofern sind die über die Verbin¬ dungsöffnungen 17, 18, 19, 29 sowie den Verbindungskanal 16, auch Ver- bindungskammer genannt, verbundenen Kammern 12, 13, 14, 15 in der ge¬ zeigten Ventilposition insbesondere gas-, flüssigkeits- und druckdicht ge¬ geneinander und nach außen zum Gewinde 34 abgedichtet.4 shows a further stepped channel 16 with an inserted stepped piston 30, which has three cylindrical sections 31, 32, 33, 33A with rising 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 Ver¬. At the front, the piston 30 has a flange 35, which serves as a stop when screwing. The individual NEN diameter portions 31, 32, 33, 33 A are connected via chamfered steps 36, 37, 38 with each other. On each diameter section 31, 32, 33, 33A there are annular grooves 39 for receiving sealing rings, so-called O-rings 40. The piston 30 is screwed into the illustrated channel until the flange 35 strikes into the stepped channel and forms with this in the region of the connection openings 17,18, 19 annular gap 41, which, however, are sealed with each other, the connection opening 29 and the thread 34 by sealing rings 40. In this respect, the chambers 12, 13, 14, 15 connected via the connecting openings 17, 18, 19, 29 and the connecting channel 16, also called connection chamber, are in particular gas, liquid and pressure tight in the shown valve position ¬ sealed against each other and outwards to the thread 34.
Fig. 5 zeigt den Stufenkanal 16 mit dem Stufenkolben 30 in Offenstellung, d. h. der Kolben 30 ist durch Drehen in Folge des Gewindeabschnittes 34 axial nach rechts verschoben, der Gewindeabschnitt 34 und der Flansch 35 ste¬ hen um den Verstellweg s nach außen vor. In den Flansch 35 bzw. den Kopf des Kolbens 30 ist ein Profil 44, beispielsweise ein Innensechskant, Kreuz¬ schlitz, Außensechskant oder dergleichen eingearbeitet, sodass der Kolben 30 mittels eines Schlüssels gedreht und damit axial verschoben werden kann. Auch bei dieser ausgefahrenen Position ist der Kolben 30 nach außen durch einen Dichtring 40 abgedichtet. An den innen liegenden Kolbenab¬ schnitt 31 mit dem geringsten Durchmesser schließt sich bevorzugt ein Ver¬ ankerungsteil 45 an, welches aus zwei elastisch verformbaren Schenkeln 45a, 45b mit endseitigen Rastnasen besteht, welche einen Anschlag beim Ausfahren des Kolbens bilden. In der dargestellten Offenstellung des Kol¬ bens 30 sind die Ringsspalte 41 , 42, 43 untereinander verbunden und bilden somit einen durchgehenden Ringspalt, in welchen die Verbindungsöffnungen 17, 18, 19, 29 münden. Insofern sind die über die Verbindungsöffnungen 17, 18, 19, 29 sowie den Verbindungskanal 16 verbundenen Kammern 12, 13, 14, 15 in der gezeigten Ventilposition untereinander verbunden und nach außen zum Gewinde 34 weiterhin abgedichtet. Damit können die entspre¬ chenden Kammern miteinander kommunizieren. An den Ringspalt 41 schließt sich nach innen eine weitere Ringkammer 46 an, über welche eine Fluidverbindung mit der Kammer 15 des Sammelkastens 6 herstellbar ist. Das Verstellen des Kolbens 30 in die Schließposition gemäß Fig. 4 erfolgt dadurch, dass der Gewindeabschnitt 34 des Kolbens 30 in das Gewindeloch 27 eingeschraubt wird. Dabei bewegt sich der Kolben 30 in der Zeichnung nach links, bis die O-Ringe 40 wieder in Kontakt mit der Innenwand des Stufenkanals 16 treten und damit wieder eine Abdichtung zwischen den ein¬ zelnen Ringspalten 41 , 42, 43 herstellen.FIG. 5 shows the step channel 16 with the stepped piston 30 in the open position, ie the piston 30 is displaced axially to the right by rotation as a result of the threaded section 34; the threaded section 34 and the flange 35 project outward about the adjustment path s. In the flange 35 and the head of the piston 30, a profile 44, for example, a hexagon socket, Kreuz¬ slot, external hexagon or the like incorporated, so that the piston 30 can be rotated by means of a key and thus moved axially. Also in this extended position, 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. In the illustrated open position of the piston 30, the annular gaps 41, 42, 43 are interconnected and thus form a continuous annular gap into which the connection openings 17, 18, 19, 29 open. In this respect, 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. Thus, the corresponding chambers can 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. The adjustment of the piston 30 in the closed position shown in FIG. 4 takes place in that the threaded portion 34 of the piston 30 is screwed into the threaded hole 27. In this case, 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 make a seal between the individual annular gaps 41, 42, 43.
Fig. 6 zeigt ein weiteres Ausführungsbeispiel der Erfindung, und zwar in Form eines konisch ausgebildeten Verbindungskanals 50 sowie eines ko¬ nisch ausgebildeten Kolbens 51 , wobei die Verbindungsöffnungen wiederum mit 17, 18, 19, 29 bezeichnet sind. Der Verbindungskanal 50 weist einen konischen Abschnitt 50a auf, an dessen engsten Querschnitt sich ein zylin¬ drischer Abschnitt 50b anschließt, welcher über die Verbindungsöffnung 29 in die Kammer 15 mündet. Auf der Seite des größten Querschnittes des ko¬ nischen Abschnittes 50a schließt sich ein weiterer zylindrischer Abschnitt 50c an, in dessen äußeren Bereich ein Innengewinde 5Od eingearbeitet ist. Der Kolben 51 weist einen Kopf 51a auf, der ähnlich wie im vorherigen Aus¬ führungsbeispiel ausgebildet ist, d. h. mit einem Gewindeabschnitt, einem Flansch, einem Innenprofil sowie einem Dichtring 40, der auf der Innenwan¬ dung des zylindrischen Abschnittes 50c gleitet. An den Kopf 51a des Kol¬ bens schließt sich hinter dem O-Ring 40 ein konischer Kolbenabschnitt 51 b an, der vollumfänglich und über die gesamte Länge an der Innenwandung des konischen Abschnittes 50a des Verbindungskanals 50 anliegt. Damit sind die Verbindungsöffnungen 17, 18, 19, 29 verschlossen und die damit verbundenen Kammern untereinander getrennt.6 shows a further exemplary embodiment of the invention, specifically in the form of a conically shaped connecting channel 50 and of a piston 51 formed in a manner of a piston, wherein the connecting openings are again designated 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 into the chamber 15 via the connecting opening 29. On the side of the largest cross section of the ko¬ nischen section 50a, a further cylindrical portion 50c adjoins, in the outer region of an internal thread 5Od is incorporated. The piston 51 has a head 51 a, which is formed similarly to the previous embodiment Aus¬, d. H. with a threaded portion, a flange, an inner profile and a sealing ring 40, which slides on the Innenwan¬ tion of the cylindrical portion 50 c. Connected to the head 51a of the piston, behind the O-ring 40, is a conical piston section 51b, which rests fully circumferentially and over the entire length on the inner wall of the conical section 50a of the connecting channel 50. Thus, the connection openings 17, 18, 19, 29 are closed and the associated chambers separated from each other.
Fig. 7 zeigt das Ausführungsbeispiel gemäß Fig. 6 mit verschobenem Kol¬ ben 51 , d. h. der Kolben ist um den Verstellweg x aus dem Verbindungska- nal 50 herausgeschraubt, aber immer noch durch den O-Ring 40 abgedich¬ tet. Zwischen dem konischen Abschnitt 50a und dem konischen Teil 51 b des Kolbens 51 ist ein „konischer" Ringspalt 52 mit von innen nach außen zu¬ nehmendem Durchmesser entstanden. Dadurch können die Verbindungsöff¬ nungen 17, 18, 19, 29 miteinander kommunizieren, d. h. ebenso die ihnen zugeordneten Kammern. Der konische Kolbenabschnitt 51 b weist auf sei- nem Unfang mehrere hintereinander angeordnete Dichtringe 53 auf, die ih n gegenüber der Innenwand des konischen Abschnittes 50a besser abdichte n und damit auch eine wirksame Abdichtung der Verbindungsöffnungen 17 ', 18, 19, 29 untereinander in der Schließstellung des Kolbens 51 bewirken. Das Verstellen des Kolbens 51 in die Schließstellung erfolgt durch Eindrehen des Kolbenkopfes 51a in das Gewinde 5Od um den Weg x, wobei der Kolben wiederum auf Anschlag gefahren wird. Eventuelle Toleranzüberscheidungen werden durch die Elastizität der Dichtringe 53 ausgeglichen.FIG. 7 shows the exemplary embodiment according to FIG. 6 with displaced piston 51, ie the piston is unscrewed from the connecting channel 50 by the adjustment path x, but is still sealed by the O-ring 40. Between the conical portion 50a and the conical portion 51b of the piston 51, a "conical" annular gap 52 having a diameter increasing from the inside outwards has been formed, whereby the connection openings 17, 18, 19, 29 can communicate with one another, ie also The conical piston section 51b points to its nem Unfang a plurality of successively arranged sealing rings 53, the ih n against the inner wall of the conical portion 50a better sealing n and thus effectively sealing the connection 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 51a in the thread 5Od to the path x, the piston is again driven to stop. Any tolerance differences are compensated by the elasticity of the sealing rings 53.
Die vorliegende Erfindung wurde am Beispiel eines Wärmeübertragers be¬ schrieben. Es wird jedoch darauf hingewiesen, dass die erfindungsgemä&e Ventilanordnung auch anderweitig einsetzbar ist. Insbesondere ist die Ven¬ tilanordnung beziehungsweise der erfindungsgemäße Wärmeübertrager für flüssige sowie für gasförmige Fluide geeignet. Der erfindungsgemäße Wär- meübertrager ist insbesondere als Ladeluftkühler, Ölkühler, Heizkörper, be¬ vorzugt für Luft-, Land-, und/oder Seefahrzeuge einsetzbar. The present invention has been described using the example of a heat exchanger. It should be noted, however, that the inventive valve arrangement can also be used elsewhere. In particular, the valve arrangement or the heat exchanger according to the invention is suitable for liquid and gaseous fluids. The heat exchanger according to the invention can be used in particular as a charge air cooler, oil cooler, radiator, be¬ preferred for air, land, and / or sea vehicles.
B e z u g s z a h l e nS e c tio n s
1 Kühlmittelkühler1 coolant cooler
2 Kühlerblock2 radiator block
3 Flachrohre3 flat tubes
4 Seitenteil4 side panel
5 oberer Sammelkasten5 upper collection box
6 unterer Sammelkasten6 lower collection box
7 Eintrittsstutzen7 inlet ports
8 Austrittsstutzen8 outlet nozzle
9 Längstrennwand9 longitudinal partition
10 Längstrennwand10 longitudinal partition
11 Quertrennwand11 cross partition
12 Kammer12 chamber
13 Kammer13 chamber
14 Kammer14 chamber
15 Kammer15 chamber
16 Verbindungskanal16 connecting channel
17 Verbindungsöffnung17 connection opening
18 Verbindungsöffnung18 connection opening
19 Verbindungsöffnung19 connection opening
20 Kühlmittelanschluss20 coolant connection
21 Kühlmittelanschluss21 coolant connection
22 Stufenabschnitt (D1)22 step section (D1)
23 Stufenabschnitt (D2)23 step section (D2)
24 Stufenabschnitt (D3)24 step section (D3)
25 Stufe25 level
25A Stufe25A level
26 Stufe26 level
27 Gewindebohrung27 threaded hole
28 Dichtungsabschnitt 9 Verbindungsöffnung 0 Stufenkolben 1 Kolbenabschnitt (d1 )28 sealing section 9 connection opening 0 stepped piston 1 piston section (d1)
32 Kolbenabschnitt (d2)32 piston section (d2)
33 Kolbenabschnitt (d3)33 piston section (d3)
33A Kolbenabschnitt (d4)33A piston section (d4)
34 Gewindeabschnitt34 threaded section
35 Flansch35 flange
36 Stufe36 level
37 Stufe37 level
38 Stufe38 level
39 Ringnut39 ring groove
40 Dichtring40 sealing ring
41 Ringspalt41 annular gap
42 Ringspalt42 annular gap
43 Ringspalt43 annular gap
50 Verbindungskanal (konisch)50 connecting channel (conical)
50a konischer Abschnitt50a conical section
50b zylindrischer Abschnitt, innen50b cylindrical section, inside
50c zylindrischer Abschnitt, außen50c cylindrical section, outside
5Od Innengewinde5Od female thread
51 Kolben51 pistons
51a Kopf51a head
51 b konischer Abschnitt51 b conical section
52 Ringspalt (konisch)52 annular gap (conical)
53 Dichtringe 53 sealing rings

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Wärmeübertrager, insbesondere Kühlmittelkühler für Kraftfahrzeuge mit einem oder mehreren Sammelkästen (5, 6), wobei zumindest ein Sammelkasten (6) mehrere durch Trennwände (9, 10, 11 ) voneinan¬ der abgeteilte Kammern (12, 13, 14, 15) aufweist, zwischen welchen über insbesondere in einem Verbindungskanal angeordnete Verbin¬ dungsöffnungen mittels eines beweglichen Stellgliedes bedarfsweise eine Fluidverbindung herstellbar ist, dadurch gekennzeichnet, dass das Stellglied als axial zwischen einer Offen- und einer Schließstel¬ lung verstellbarer Kolben (30, 51 ) und die Querschnitte des Verbin¬ dungskanals (16, 50) sowie des Kolbens (30 , 51 ) im Bereich der Ver¬ bindungsöffnungen (17, 18, 19) unterschiedlich, insbesondere von ei¬ ner ersten äußersten Verbindungsöffnung zu einer zweiten äußersten Verbindungsöffnung abnehmend ausgebildet sind.1. Heat exchanger, in particular coolant radiator for motor vehicles with one or more collecting boxes (5, 6), wherein at least one collecting box (6) has several partition walls (9, 10, 11) separated from one another (12, 13, 14, 15) has, between which via in particular in a connecting channel arranged Verbin¬ openings by means of a movable actuator, if necessary, a fluid connection can be produced, characterized in that the actuator as axially adjustable between an open and a Schließstel¬ ment piston (30, 51) and the cross-sections of the connecting duct (16, 50) and the piston (30, 51) in the region of the connecting openings (17, 18, 19) are designed differently, in particular decreasing from a first outermost connecting opening to a second outermost connecting opening.
2. Wärmeübertrager nach Anspruch 1 , dadurch gekennzeichnet, dass der Verbindungskanal als Stufenkanal (16, 22, 23, 24) und der Kolben als Stufenkolben (30, 31 , 32, 33) ausgebildet sind.2. Heat exchanger according to claim 1, characterized in that the connecting channel as a stepped channel (16, 22, 23, 24) and the piston as a stepped piston (30, 31, 32, 33) are formed.
3. Wärmeübertrager nach Anspruch 1 , dadurch gekennzeichnet, dass der Verbindungskanal (50) und der Kolben (51 ) jeweils konische Ab¬ schnitte (50a, 51b) aufweisen.3. Heat exchanger according to claim 1, characterized in that the connecting channel (50) and the piston (51) each have conical Ab¬ sections (50 a, 51 b).
4. Wärmeübertrager nach Anspruch 1, 2 oder 3, dadurch gekenn¬ zeichnet, dass der Verbindungskanal (16, 50) eine außen angeord¬ nete Verschlussöffnung (27, 5Od) aufweist, welche einen Befesti¬ gungsabschnitt (34, 51a) des Kolbens (30, 51) aufnimmt. 4. Heat exchanger according to claim 1, 2 or 3, characterized gekenn¬ characterized in that the connecting channel (16, 50) has an externally angeord¬ Nete closure opening (27, 5Od), which a Befesti¬ supply portion (34, 51 a) of the piston ( 30, 51) receives.
5. Wärmeübertrager nach Anspruch 1 , 2, 3 oder 4, dadurch gekenn¬ zeichnet, dass der Verbindungskanal eine im Inneren (15) des Sam¬ melkastens (6) angeordnete Zu- und/oder Abflussöffnung (29, 5Od) aufweist.5. Heat exchanger according to claim 1, 2, 3 or 4, characterized gekenn¬ characterized in that the connecting channel has a in the interior (15) of the Sam¬ melkastens (6) arranged inlet and / or outlet opening (29, 5Od).
6. Wärmeübertrager nach Anspruch 2, 4 oder 5, dadurch gekenn¬ zeichnet, dass der Stufenkanal (1 6) im Bereich der Verbindungsöff¬ nung (17, 18, 19) Kammern (22 , 23, 24) unterschiedlicher Quer- schnitte (D1 , D2, D3) und der Stufenkolben (30) Kolbenabschnitte (31 ,6. Heat exchanger according to claim 2, 4 or 5, characterized gekenn¬ characterized in that the step channel (1 6) in the region of the Verbindungsöff¬ (17, 18, 19) chambers (22, 23, 24) of different cross sections (D1 , D2, D3) and the stepped piston (30) piston sections (31,
32, 33) unterschiedlicher Querschnitte (d1 , d2, d3) aufweisen, wobei zwischen den Kammern (22, 23, 24) und den Kolbenabschnitten (31 , 32, 33) Ringspalte (41 , 42, 43) belassen sind, die in Schließstellung untereinander abgedichtet sind und in Offenstellung miteinander kommunizierende Räume bilden.32, 33) of different cross-sections (d1, d2, d3), wherein between the chambers (22, 23, 24) and the piston portions (31, 32, 33) annular gaps (41, 42, 43) are left, in the closed position are sealed with each other and form open spaces communicating with each other in the open position.
7. Wärmeübertrager nach Anspruch 6, dadurch gekennzeichnet, dass die Ringspalte (41 , 42, 43) durch auf dem Stufenkolben (30) angeord¬ nete Dichtringe (40) abgedichtet sind.7. Heat exchanger according to claim 6, characterized in that the annular gaps (41, 42, 43) by on the stepped piston (30) angeord¬ designated sealing rings (40) are sealed.
8. Wärmeübertrager nach Anspruch 3, 4 oder 5, dadurch gekenn¬ zeichnet, dass auf dem konischen Kolbenabschnitt (51 b) eine Viel¬ zahl von Dichtringen (53) angeordnet ist.8. Heat exchanger according to claim 3, 4 or 5, characterized gekenn¬ characterized in that on the conical piston portion (51 b) a Viel¬ number of sealing rings (53) is arranged.
9. Wärmeübertrager nach Anspruch 3 oder 8, dadurch gekennzeich¬ net, dass der Kolben (51 ) mit seinem konischen Kolbenabschnitt (51 b) in Schließstellung am konischen Abschnitt (50a) des Verbin¬ dungskanals (51) anliegt und in Offenstellung einen konischen Rings¬ palt (52) freigibt.9. Heat exchanger according to claim 3 or 8, characterized gekennzeich¬ net, that the piston (51 b) with its conical piston portion (51 b) in the closed position on the conical portion (50 a) of the connecting channel (51) rests and in the open position a conical ring ¬ palt (52) releases.
10. Wärmeübertrager nach Anspruch 4, dadurch gekennzeichnet, dass die Verschlussöffnung als Gewindebohrung (27, 5Od) und der Befe¬ stigungsabschnitt als Gewindeabschnitt (34, 51a) ausgebildet sind. 10. Heat exchanger according to claim 4, characterized in that the closure opening as a threaded bore (27, 5Od) and the Befe¬ stigungsabschnitt as a threaded portion (34, 51 a) are formed.
11. Ventilanordnung mit einem Verbindungskanal und in einem Gehäuse angeordneten Verbindungsöffnungen, zwischen denen mittels eines beweglichen Stellgliedes bedarfsweise eine Fluidverbind ung herstell¬ bar ist, dadurch gekennzeichnet, dass das Stellglied als axial zwi- sehen einer Offen- und einer Schließstellung verstellbarer Kolben (30,11. Valve arrangement with a connecting channel and arranged in a housing connecting openings, between which by means of a movable actuator, if necessary, a Fluidverbind ung herstell¬ bar, characterized in that the actuator as axially between an open and a closed position adjustable piston (30,
51) und die Querschnitte des Verbindungskanals (16, 5O) sowie des Kolbens (30, 51 ) im Bereich der Verbindungsöffnungen (17, 18, 19) unterschiedlich, insbesondere von einer ersten äußersten Verbin¬ dungsöffnung zu einer zweiten äußersten Verbindungsöffnung ab- nehmend ausgebildet sind. 51) and the cross sections of the connecting channel (16, 50) and of the piston (30, 51) in the region of the connecting openings (17, 18, 19) differently, in particular from a first outermost Verbin¬ training opening to a second outermost connecting opening decreasing formed are.
EP05797706A 2004-10-14 2005-10-12 Heat exchanger, in particular radiator for motor vehicles Not-in-force EP1805470B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004050159A DE102004050159A1 (en) 2004-10-14 2004-10-14 Heat exchanger, in particular coolant radiator for motor vehicles
PCT/EP2005/010978 WO2006042680A1 (en) 2004-10-14 2005-10-12 Heat exchanger, in particular radiator for motor vehicles

Publications (2)

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

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US (1) US8210244B2 (en)
EP (1) EP1805470B1 (en)
AT (1) ATE555359T1 (en)
DE (1) DE102004050159A1 (en)
WO (1) WO2006042680A1 (en)

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Also Published As

Publication number Publication date
WO2006042680A1 (en) 2006-04-27
ATE555359T1 (en) 2012-05-15
EP1805470B1 (en) 2012-04-25
US8210244B2 (en) 2012-07-03
US20080029253A1 (en) 2008-02-07
DE102004050159A1 (en) 2006-04-27

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