EP0115795A1 - Water/air cooler for water cooled internal combustion engines, especially for commercial vehicles - Google Patents

Water/air cooler for water cooled internal combustion engines, especially for commercial vehicles Download PDF

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Publication number
EP0115795A1
EP0115795A1 EP84100405A EP84100405A EP0115795A1 EP 0115795 A1 EP0115795 A1 EP 0115795A1 EP 84100405 A EP84100405 A EP 84100405A EP 84100405 A EP84100405 A EP 84100405A EP 0115795 A1 EP0115795 A1 EP 0115795A1
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EP
European Patent Office
Prior art keywords
water
side parts
bores
water boxes
cooler
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Granted
Application number
EP84100405A
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German (de)
French (fr)
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EP0115795B1 (en
Inventor
Werner Lenz
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Mahle Behr GmbH and Co KG
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Behr GmbH and Co KG
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Application filed by Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
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    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core

Definitions

  • the invention relates to a water / air cooler for water-cooled internal combustion engines, in particular commercial vehicles, the radiator block including the water boxes is fastened via side parts.
  • the water / air coolers of internal combustion engines in particular those with a plastic water tank and a soldered cooler block, with side parts which are also anchored to the tube sheet by a soldered connection. If such water / air coolers are used for commercial vehicles, especially for those of the medium and large types, it is usually necessary to attach the cooler to the frame structure of the vehicle via the side parts.
  • the disadvantage is that due to the rather harsh operating conditions of such vehicles and because of the relatively large mass of the cooler in such designs, the attachment cannot always be guaranteed.
  • the invention is therefore based on the object, a cooler de design mentioned in such a way that a safe and permanent attachment to the vehicle via the side parts is possible, but without the construction costs for the cooler being too great
  • the invention consists in that the side parts at their two ends with the water boxes laterally overlapping fastening; lugs are provided, which have holes that are aligned with corresponding holes in the water tanks and that through this drilling connection bolts or the like. are stuck.
  • This embodiment has the advantage that the water boxes are used as connecting cross members for the two side parts, so that the side parts together with the water boxes form a stable frame construction that holds the soldered radiator block between them, but absorbs the fastening forces and no special ones or expensive soldered connections for fastening the side parts.
  • each fastening bracket consists of two mutually parallel bracket parts which grip around the associated water tank on both sides and if the fastening brackets are designed as corner reinforcements and are each provided with two of the holes.
  • This configuration gives high stability and facilitates the angular alignment of the water tank and side parts during assembly.
  • the holes in the water boxes are expediently arranged outside the flange for fastening the tube sheets.
  • the bores are formed in each case at one end of the side parts in the corresponding fastening tabs as elongated holes extending in the direction of the tube axes of the radiator block are. It then serves, for example, the lower fastening of the side parts with the water tank as a fixed bearing, while the connection with the upper water tank is designed as a floating bearing.
  • This embodiment has the advantage that, despite the simple construction, tension-free length compensation is possible, which was not the case with previous designs.
  • the connecting bolts can be designed as non-threaded pins and secured with spring clips which snap into a groove in the socket bolts. Such components are on the market. This configuration has the advantage that no complex screwing operations are necessary to assemble the cooler.
  • the new design is particularly suitable for water boxes that are cast or made of plastic and that cannot be easily soldered to the tube sheets.
  • water boxes made of plastic it is expedient to insert support sleeves made of metal into the holes so that the material of the water boxes is not damaged by the forces acting from the fastening.
  • a water / air cooler for a commercial vehicle which consists of an upper, made of plastic water tank 1 and a lower plastic water box 2, between which one;
  • a row of pipes (not shown) for guiding the cooling water is arranged, the axes 3 of which run perpendicular to the fastening flanges 4 of the water boxes 1 and 2.
  • the cooler block i consisting of the verrip tubes and the tube sheets, not shown, is produced by soldered connections.
  • the tube sheets are each flanged with the flange 4 of the water boxes, as is known.
  • the two side parts 5 and 6 are used to fasten the cooler. These are made of metal as profile parts, but can also consist of a suitable plastic.
  • the basic structure of the side parts 5 and 6 is mirror-symmetrical to the central plane 7 of the cooler, but in the exemplary embodiment they have different fastening projections in the lower part. So is the side part 5 with one vertically protruding mounting plate 8, which is supported by two triangular angles 9 on the side part. This plate 8 and the reinforcement bracket 9 can be welded or attached in some other way. The plate is used in the. Attachment of the radiator for support on part of the frame structure of the vehicle, not shown.
  • the side part 6 is provided with fastening hooks 10 protruding from a profiled depression.
  • Both side parts have ring-shaped features 11 in the upper area, which are provided with bores for inserting fastening screws.
  • the side parts designed as profile parts are very stable. They each have fastening tabs 12 and 13 at their upper and lower ends, which laterally overlap the upper water tank 1 and the lower water tank 2.
  • These fastening tabs 12 consist of two tab parts 12a and 12b or 13a, 13b, each of which overlaps the water boxes on the front or on the rear, and they are designed as reinforcing corner brackets by the arrangement of the inclined connecting webs 14.
  • the fastening tabs 12 and 13 are, as can be seen in particular from FIGS. 3 and 4, each provided with two bores 15 and 16, of which the bores 15 are cylindrical, while the bores 16 are designed as elongated holes which are in Extend direction of the axes 3 of the pipes, not shown.
  • holes 15 and 16 in the side parts 5 and 6 are arranged so that they are each aligned with holes 17 in the water boxes 1 and 2, which are designed in the embodiment as continuous cylindrical openings, so that connecting bolts 18, as they are detailed in 7 and 8 are shown, can be inserted through the holes 15 and 16 and the associated holes 17 in the water boxes 1 and 2, so that in this way a secure and stable attachment of the side parts 5 and 6 to the water boxes 1st or 2 takes place.
  • the bores 17 are arranged at a distance from the mounting flange 4 of the water boxes 1 and 2, so that the attachment of the side parts 5 and 6 regardless of the fastening supply of the water boxes 1 or 2 can take place on the radiator block, particularly in the case of water boxes made of plastic, this type of construction of a cooler is advantageous because it ensures extraordinary stability and does not make the attachment dependent on a soldered connection.
  • the push-through bolts 18 are secured by a spring clip 20, which is known and is essentially U-shaped and is pressed into the groove 18b with two spring legs and in the pressed-in position according to FIG. 7 is secured by the front securing tab 20a, which snaps over the front end of the plug pin 18.
  • This type of spring clip attachment is known. It allows a particularly simple and screwless installation in the cooler according to the invention.

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

Abstract

Es wird ein Wasser/Luft-Kühler für wassergekühlte Verbrennungskraftmaschinen, insbesondere von Nutzfahrzeugen beschrieben, dessen Kühlerblock einschliesslich der Wasserkästen über Seitenteile am Fahrzeug befestigt wird. Die Seitenteile sind bei dem neuen Kühler an ihren beiden Enden mit die Wasserkästen seitlich übergreifenden Befestigungslaschen versehen, welche Bohrungen aufweisen, die mit korrespondierenden Bohrungen an den Wasserkästen fluchten, wobei durch die Bohrungen Verbindungsbolzen zum Zusammenfügen dieser Bauteile gesteckt sind. Diese Ausgestaltung weist den Vorteil auf, dass die Wasserkästen selbst als Verbindungstraversen für die Seitenteile ausgenützt werden können, so dass Seitenteile und Wasserkästen eine stabile Rahmenkonstruktion bilden, die den gelöteten Kühlerblock zwischen sich hält. Befestigungskräfte werden von dieser Rahmenkonstruktion aufgenommen. Aufwendige Lötverbindungen zur Befestigung der Seitenteile werden überflüssig.A water / air cooler for water-cooled internal combustion engines, in particular of commercial vehicles, is described, the cooler block of which, including the water boxes, is attached to the vehicle via side parts. The side parts of the new cooler are provided at both ends with fastening tabs that extend laterally over the water boxes, which have holes that align with corresponding holes on the water boxes, connecting bolts being inserted through the holes for joining these components. This embodiment has the advantage that the water boxes themselves can be used as connecting cross members for the side parts, so that the side parts and water boxes form a stable frame construction that holds the soldered radiator block between them. Fixing forces are absorbed by this frame construction. Elaborate solder connections for fastening the side parts are no longer necessary.

Description

Die Erfindung betrifft einen Wasser/Luft-Kühler für wassergekühlte Verbrennungskraftmaschinen, insbesondere von Nutzfahrzeugen, dessen Kühlerblock einschließlich der Wasserkästen über Seitenteile befestigt wird. Es ist bekannt, die Wasser/Luft-Kühler von Verbrennungskraftmaschinen, insbesondere solche mit einem Kunststoffwasserkasten und einem gelöteten Kühlerblock, mit Seitenteilen zu versehen, die ebenfalls durch eine Lötverbindung am Rohrboden verankert sind. Werden solche Wasser/Luft-Kühler für Nutzfahrzeuge eingesetzt, insbesondere für solche der mittleren und großen Bauarten, so wird es meistens notwendig, den Kühler über die Seitenteile an der Rahmenkonstruktion des Fahrzeuges zu befestigen. Nachteilig ist, daß wegen der recht rauhen Einsatzbedingungen solcher Fahrzeuge und wegen der relativ großen Masse des Kühlers bei solchen Bauarten die Befestigung nicht immer gewährleistet werden kann.The invention relates to a water / air cooler for water-cooled internal combustion engines, in particular commercial vehicles, the radiator block including the water boxes is fastened via side parts. It is known to provide the water / air coolers of internal combustion engines, in particular those with a plastic water tank and a soldered cooler block, with side parts which are also anchored to the tube sheet by a soldered connection. If such water / air coolers are used for commercial vehicles, especially for those of the medium and large types, it is usually necessary to attach the cooler to the frame structure of the vehicle via the side parts. The disadvantage is that due to the rather harsh operating conditions of such vehicles and because of the relatively large mass of the cooler in such designs, the attachment cannot always be guaranteed.

Der Erfindung liegt daher die Aufgabe zugrunde, einen Kühler de eingangs genannten Bauart so auszubilden, daß eine sichere und dauerhafte Befestigung am Fahrzeug über die Seitenteile möglich ist, ohne daß jedoch der Bauaufwand für den Kühler zu groß wirdThe invention is therefore based on the object, a cooler de design mentioned in such a way that a safe and permanent attachment to the vehicle via the side parts is possible, but without the construction costs for the cooler being too great

Die Erfindung besteht darin, daß die Seitenteile an ihren beide Enden mit die Wasserkästen seitlich übergreifenden Befestigungs; laschen versehen sind, die Bohrungen aufweisen, die mit korrespondierenden Bohrungen an den Wasserkästen fluchten und daß durch diese Bohr Verbindungsbolzen o.dgl. gesteckt sind. Diese Ausgestaltung weist den Vorteil auf, daß die Wasserkästen-als Verbindungstraversen für die beiden Seitenteile ausgenützt werden, so daß die Seitenteile zusammen mit den Wasserkästen eine stabile Rahmenkonstruktion bilden, die den gelöteten Kühlerblock zwischen sich hält, die Befestigungskräfte aber in sich aufnimmt und keine besonderen oder aufwendigen Lötverbindungen zur Befestigung der Seitenteile erforderlich macht.The invention consists in that the side parts at their two ends with the water boxes laterally overlapping fastening; lugs are provided, which have holes that are aligned with corresponding holes in the water tanks and that through this drilling connection bolts or the like. are stuck. This embodiment has the advantage that the water boxes are used as connecting cross members for the two side parts, so that the side parts together with the water boxes form a stable frame construction that holds the soldered radiator block between them, but absorbs the fastening forces and no special ones or expensive soldered connections for fastening the side parts.

Zweckmäßig und vorteilhaft ist es, wenn jede Befestigungslasche aus zwei parallel zueinander verlaufenden Laschenteilen besteht, welche den zugeordneten Wasserkasten beidseitig umgreifen und wenn die Befestigungslaschen als Eckverstärkungen ausgebildet und mit je zwei der Bohrungen versehen sind. Diese Ausgestaltung gibt eine hohe Stabilität und erleichtert die Winkelausrichtung Wasserkasten und Seitenteilen bei der Montage. Um die Befestigun der Rohrböden an den Wasserkästen, die in bekannter Weise erfolgen kann, nicht zu beeinträchtigen, werden die Bohrungen in den Wasserkästen zweckmäßig außerhalb des Flansches zur Befestigung der Rohrböden angeordnet.It is expedient and advantageous if each fastening bracket consists of two mutually parallel bracket parts which grip around the associated water tank on both sides and if the fastening brackets are designed as corner reinforcements and are each provided with two of the holes. This configuration gives high stability and facilitates the angular alignment of the water tank and side parts during assembly. In order not to impair the attachment of the tube sheets to the water boxes, which can be done in a known manner, the holes in the water boxes are expediently arranged outside the flange for fastening the tube sheets.

Um Fertigungstoleranzen und während des Betriebes auftretende Wärmespannungen ausgleichen zu können, ist es besonders vorteilhaft, wenn die Bohrungen jeweils an einem Ende der Seitenteile in den entsprechenden Befestigungslaschen als in Richtung der Rohrachsen des Kühlerblockes verlaufende Langlöcher ausgebildet sind. Es dient dann beispielsweise die untere Befestigung der Seitenteile mit dem Wasserkasten als Festlager, während die Verbindung mit dem oberen Wasserkasten als Loslager gestaltet ist. Diese Ausgestaltung weist den Vorteil auf, daß trotz einfacher konstruktiver Ausgestaltung ein spannungsfreier Längenausgleich möglich wird, was bei den bisherigen Bauarten nicht der Fall war.In order to be able to compensate for manufacturing tolerances and thermal stresses occurring during operation, it is particularly advantageous if the bores are formed in each case at one end of the side parts in the corresponding fastening tabs as elongated holes extending in the direction of the tube axes of the radiator block are. It then serves, for example, the lower fastening of the side parts with the water tank as a fixed bearing, while the connection with the upper water tank is designed as a floating bearing. This embodiment has the advantage that, despite the simple construction, tension-free length compensation is possible, which was not the case with previous designs.

Die Verbindungsbolzen können als steckstifte gewindelos ausgebildet und mit Federklammern gesichert sein, die in eine Nut der Steckbolzen einrasten. Solche Bauteile sind auf dem Markt. Diese Ausgestaltung weist den Vorteil auf, daß zur Montage des Kühlers keine aufwendigen Schraubvorgänge notwendig sind.The connecting bolts can be designed as non-threaded pins and secured with spring clips which snap into a groove in the socket bolts. Such components are on the market. This configuration has the advantage that no complex screwing operations are necessary to assemble the cooler.

Die neue Ausgestaltung eignet sich besonders für Wasserkästen, die gegossen oder aus Kunststoff hergestellt sind und die nicht ohne weiteres mit den Rohrböden verlötet werden können. Bei Wasserkästen aus Kunststoff wird es zweckmäßig, in die Bohrungen aus Metall bestehende Stützhülsen einzusetzen, damit das Material der Wasserkästen nicht durch die von der Befestigung her einwirkenden Kräfte beschädigt wird.The new design is particularly suitable for water boxes that are cast or made of plastic and that cannot be easily soldered to the tube sheets. In the case of water boxes made of plastic, it is expedient to insert support sleeves made of metal into the holes so that the material of the water boxes is not damaged by the forces acting from the fastening.

In der Zeichnung ist ein Ausführungsbeispiel eines erfindungsgemäßen Wasser/Luft-Kühlers dargestellt und in der nachfolgenden Beschreibung erläutert. Es zeigen:

  • Fig. 1 eine schematische Ansicht eines neuen Wasser/Luft-Kühlers für Nutzfahrzeuge,
  • Fig. 2 die Seitenansicht des Kühlers der Fig. 1 in Richtung des Pfeiles II der Fig. 1,
  • Fig. 3 eine Draufsicht auf ein Seitenteil des Kühlers der Fig. 1,
  • Fig. 4 die Ansicht des Seitenteiles der Fig. 3 in Richtung des Pfeiles IV,
  • Fig. 5 eine vergrößerte Detaildarstellung der Einzelheit V in Fig. 1,
  • Fig. 6 die Draufsicht auf die vergrößerte Einzelheit der Fig. 5,
  • Fig. 7 den Schnitt durch die Fig. 5 längs der Linie VII-VII und
  • Fig. 8 schließlich eine perspektivische Darstellung der - an sich bekannten - Sicherungselemente für die Steckbolzen.
In the drawing, an embodiment of a water / air cooler according to the invention is shown and explained in the following description. Show it:
  • 1 is a schematic view of a new water / air cooler for commercial vehicles,
  • 2 shows the side view of the cooler of FIG. 1 in the direction of arrow II of FIG. 1,
  • 3 is a plan view of a side part of the cooler of FIG. 1,
  • Fig. 4 is a view of the side part of Fig. 3 in the direction arrow IV,
  • 5 is an enlarged detail view of the detail V in Fig. 1,
  • 6 is a plan view of the enlarged detail of FIG. 5,
  • Fig. 7 shows the section through Fig. 5 along the line VII-VII and
  • Fig. 8 is finally a perspective view of the - known per se - securing elements for the socket bolts.

In den Fig. 1 und 2 ist ein Wasser/Luft-Kühler für ein Nutz- fahrzeug dargestellt, der aus einem oberen, aus Kunststoff hergestellten Wasserkasten 1 und aus einem ebenfalls aus Kunststoff bestehenden unteren Wasserkasten 2 besteht, zwischen denen eine ; Reihe nicht gezeigter Rohre für die Führung des Kühlwassers angeordnet ist, deren Achsen 3 senkrecht zu den Befestigungs- flanschen 4 der Wasserkästen 1 und 2 verlaufen. Der aus den verrip Rohren und den nicht gezeigten Rohrböden bestehende Kühlerblock i ist durch Lötverbindungen hergestellt. Die Rohrböden sind jeweils mit dem Flansch 4 der Wasserkästen verbördelt, wie das bekannt ist.1 and 2, a water / air cooler for a commercial vehicle is shown, which consists of an upper, made of plastic water tank 1 and a lower plastic water box 2, between which one; A row of pipes (not shown) for guiding the cooling water is arranged, the axes 3 of which run perpendicular to the fastening flanges 4 of the water boxes 1 and 2. The cooler block i consisting of the verrip tubes and the tube sheets, not shown, is produced by soldered connections. The tube sheets are each flanged with the flange 4 of the water boxes, as is known.

Zur Befestigung des Kühlers dienen die beiden Seitenteile 5 und 6. Diese sind als Profilteile aus Metall hergestellt, können aber ebenfalls aus einem geeigneten Kunststoff bestehen. Die Seitenteile 5 und 6 sind in ihrem Grundaufbau spiegelsymmetrisch zu der Mittelebene 7 des Kühlers gestaltet, weisen allerdings beim Ausführungsbeispiel verschiedenartige Befestigungsvorsprünge im unteren Teil auf. So ist das Seitenteil 5 mit einer senkrecht abstehenden Befestigungsplatte 8 versehen, die über zwei dreieckförmige Winkel 9 an dem Seitenteil abgestützt ist. Diese Platte 8 und die Verstärkungswinkel 9 können angeschweißt oder in anderer Weise befestigt sein. Die Platte dient bei der . Befestigung des Kühlers zum Abstützen auf einem Teil der Rahmenkonstruktion des nicht gezeigten Fahrzeuges. Das Seitenteil 6 ist mit aus einer profilierten Vertiefung herausragenden Befestigungshaken 10 versehen. Beide Seitenteile weisen im oberen Bereich ringförmige Ausprägungen 11 auf, die mit Bohrungen zum Einsetzen von Befestigungsschrauben versehen sind. Die so als Profilteile ausgebildeten Seitenteile sind sehr stabil. Sie weisen an ihrem oberen und an ihrem unteren Ende jeweils Befestigungslaschen 12 bzw. 13 auf, welche den oberen Wasserkasten 1 bzw. den unteren Wasserkasten 2 seitlich übergreifen. Diese Befestigungslaschen 12 bestehen aus zwei die Wasserkästen jeweils auf der Vorder- bzw. auf der Rückseite übergreifenden Laschenteilen 12a und 12b bzw. 13a, 13b, und sie sind durch die Anordnung der schrägverlaufenden Verbindungsstege 14 als Verstärkungseckwinkel ausgebildet. Die Befestigungslaschen 12 und 13 sind jeweils, wie insbesondere den Fig. 3 und 4 zu entnehmen ist, jeweils mit zwei Bohrungen 15 bzw. 16 versehen, von denen die Bohrungen 15 zylindrisch sind, während die Bohrungen 16 als Langlöcher ausgebildet sind, die sich in Richtung der Achsen 3 der nicht gezeigten Rohre erstrecken.The two side parts 5 and 6 are used to fasten the cooler. These are made of metal as profile parts, but can also consist of a suitable plastic. The basic structure of the side parts 5 and 6 is mirror-symmetrical to the central plane 7 of the cooler, but in the exemplary embodiment they have different fastening projections in the lower part. So is the side part 5 with one vertically protruding mounting plate 8, which is supported by two triangular angles 9 on the side part. This plate 8 and the reinforcement bracket 9 can be welded or attached in some other way. The plate is used in the. Attachment of the radiator for support on part of the frame structure of the vehicle, not shown. The side part 6 is provided with fastening hooks 10 protruding from a profiled depression. Both side parts have ring-shaped features 11 in the upper area, which are provided with bores for inserting fastening screws. The side parts designed as profile parts are very stable. They each have fastening tabs 12 and 13 at their upper and lower ends, which laterally overlap the upper water tank 1 and the lower water tank 2. These fastening tabs 12 consist of two tab parts 12a and 12b or 13a, 13b, each of which overlaps the water boxes on the front or on the rear, and they are designed as reinforcing corner brackets by the arrangement of the inclined connecting webs 14. The fastening tabs 12 and 13 are, as can be seen in particular from FIGS. 3 and 4, each provided with two bores 15 and 16, of which the bores 15 are cylindrical, while the bores 16 are designed as elongated holes which are in Extend direction of the axes 3 of the pipes, not shown.

Diese Bohrungen 15 und 16 in den Seitenteilen 5 und 6 sind so angeordnet, daß sie jeweils mit Bohrungen 17 in den Wasserkästen 1 bzw.2 fluchten, die im Ausführungsbeispiel als durchgehende zylindrische öffnungen ausgebildet sind, so daß Verbindungsbolzen 18, wie sie im einzelnen in den Fig. 7 und 8 gezeigt sind, durch die Bohrungen 15 bzw. 16 und die zugeordneten Bohrungen 17 in den Wasserkästen 1 und 2 durchgesteckt werden können, so daß auf diese Weise eine sichere und stabile Befestigung der Seitenteile 5 und 6 an den Wasserkästen 1 bzw. 2 erfolgt. Wie die Fig. 1 und 5 zeigen, sind dabei die Bohrungen 17 im Abstand zu dem Befestigungsflansch 4 der Wasserkästen 1 bzw. 2 angeordnet, so daß die Befestigung der Seitenteile 5 und 6 unabhängig von der Befestigung der Wasserkästen 1 bzw. 2 an dem Kühlerblock erfolgen kann Insbesondere bei aus Kunststoff hergestellten Wasserkästen ist diese Art des Aufbaus eines Kühlers vorteilhaft, weil sie eine außerordentliche Stabilität sichert und die Befestigung nicht von einer Lötverbindung abhängig macht.These holes 15 and 16 in the side parts 5 and 6 are arranged so that they are each aligned with holes 17 in the water boxes 1 and 2, which are designed in the embodiment as continuous cylindrical openings, so that connecting bolts 18, as they are detailed in 7 and 8 are shown, can be inserted through the holes 15 and 16 and the associated holes 17 in the water boxes 1 and 2, so that in this way a secure and stable attachment of the side parts 5 and 6 to the water boxes 1st or 2 takes place. 1 and 5 show, the bores 17 are arranged at a distance from the mounting flange 4 of the water boxes 1 and 2, so that the attachment of the side parts 5 and 6 regardless of the fastening supply of the water boxes 1 or 2 can take place on the radiator block, particularly in the case of water boxes made of plastic, this type of construction of a cooler is advantageous because it ensures extraordinary stability and does not make the attachment dependent on a soldered connection.

Wie den Fig. 5, 6 und vor allen Dingen 7 entnommen werden kann, sind zur Befestigung der Wasserkästen 1 und 2 mit den Befestigungslaschen 12, 13 der Seitenteile 5, 6 jeweils als glatte zylindrische Steckstifte ausgebildete Steckbolzen 18 vorgesehen,; die auf einer Seite mit einem-Anlagekopf 18a und auf der anderen Seite mit einer umlaufenden Nut 18b versehen sind. Diese Steckbolzen 18 sind beim Ausführungsbeispiel durch metallische Stütz-! hülsen 19 geführt, deren Innendurchmesser so auf den Außendurchmesser der Steckbolzen 18 abgestimmt ist, daß diese leicht, aber ohne nennenswertes Spiel durch die Bohrungen 17 der Wasserkästen und durch die Bohrungen 16 bzw. 15 der Befestigungslaschen 12 bzw. deren Befestigungslaschenteile 12a und 12b durchgeführt werden können. Wie Fig. 7 zu entnehmen ist, erfolgt die Sicherung der durchgesteckten Steckbolzen 18 über eine Federklammer 20, die bekannt ist und die im wesentlichen U-förmig ausgebildet ist und mit zwei Federschenkeln in die Nut 18b hereingedrückt und in der hereingedrückten Lage gemäß Fig. 7 durch die vordere Sicherungslasche 20a gesichert wird, die über das Stirnende des Steckbolzens 18 schnappt. Diese Art der Federklammerbefestigung ist bekannt. Sie erlaubt bei dem erfindungsgemäßen Kühler eine besonders einfache und schraublose Montage.5, 6 and, above all, 7, 7 are provided for fastening the water boxes 1 and 2 with the fastening tabs 12, 13 of the side parts 5, 6 each formed as smooth cylindrical pins 18; which are provided on one side with a contact head 18a and on the other side with a circumferential groove 18b. These socket pins 18 are in the embodiment by metallic support! sleeves 19 guided, the inner diameter of which is matched to the outer diameter of the plug-in bolts 18 in such a way that they can be carried out easily, but without any appreciable play, through the bores 17 of the water boxes and through the bores 16 and 15 of the fastening lugs 12 or their fastening lug parts 12a and 12b can. As can be seen in FIG. 7, the push-through bolts 18 are secured by a spring clip 20, which is known and is essentially U-shaped and is pressed into the groove 18b with two spring legs and in the pressed-in position according to FIG. 7 is secured by the front securing tab 20a, which snaps over the front end of the plug pin 18. This type of spring clip attachment is known. It allows a particularly simple and screwless installation in the cooler according to the invention.

Claims (10)

1. Wasser/Luft-Kühler für wassergekühlte Verbrennungskraftmaschinen, insbesondere von Nutzfahrzeugen, dessen Kühlerblock einschließlich der Wasserkästen über Seitenteile befestigt wird, dadurch gekennzeichnet, daß die Seitenteile (5, 6) an ihren beiden Enden mit die Wasserkästen (1, 2) seitlich übergreifenden Befestigungslaschen (12, 13) versehen sind, die Bohrungen (15, 16) aufweisen, die mit korrespondierenden Bohrungen (17) an den Wasserkästen (1, 2) fluchten und daß durch die Bohrungen (15, 16, 17) Verbindungsbolzen (18) o.dgl. gesteckt sind.1. Water / air cooler for water-cooled internal combustion engines, especially of commercial vehicles, the radiator block including the water boxes is attached via side parts, characterized in that the side parts (5, 6) at their two ends with the water boxes (1, 2) laterally overlapping Fastening tabs (12, 13) are provided, which have bores (15, 16) which are aligned with corresponding bores (17) on the water tanks (1, 2) and that through the bores (15, 16, 17) connecting bolts (18) or the like are stuck. 2. Kühler nach Anspruch 1, dadurch gekennzeichnet, daß jede Befestigungslasche (12, 13) aus zwei parallel zueinander verlaufenden Laschenteilen (12a, 12b, 13a, 13b) besteht, welche den zugeordneten Wasserkasten (1 bzw. 2) beidseitig umgreifen.2. Cooler according to claim 1, characterized in that each fastening tab (12, 13) consists of two mutually parallel tab parts (12a, 12b, 13a, 13b) which encompass the associated water tank (1 or 2) on both sides. 3. Kühler nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, daß die Befestigungslaschen (12, 13) als Eckverstärkungen ausgebildet und mit je zwei der Bohrungen (15 bzw. 16) versehen sind.3. Cooler according to claims 1 or 2, characterized in that the fastening tabs (12, 13) as Eckver strengthening trained and provided with two of the holes (15 and 16). 4. Kühler nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Bohrungen (17) in den Wasserkästen (1, 2) außerhalb des Flansches (4) zur Befestigung der Rohrböden angeordnet sind.4. Cooler according to one of claims 1 to 3, characterized in that the bores (17) in the water boxes (1, 2) are arranged outside the flange (4) for fastening the tube sheets. 5. Kühler nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet,' daß die Bohrungen (17) als durchgehende zylindrische öffnungen ausgebildet sind.5. Cooler according to claims 1 to 4, characterized in that 'the bores (17) are designed as continuous cylindrical openings. 6. Kühler nach einem der Ansprüche 1 bis 5, dadurch gekenn- ; zeichnet, daß die Bohrungen (16) jeweils an einem Ende der Seitenteile (5, 6) als in Richtung der Rohrachsen (3) des Kühlerblockes verlaufende Langlöcher ausgebildet sind.6. Cooler according to one of claims 1 to 5, characterized; is characterized in that the bores (16) are each formed at one end of the side parts (5, 6) as elongated holes extending in the direction of the tube axes (3) of the radiator block. 7. Kühler nach Anspruch 6, dadurch gekennzeichnet, daß die Langlöcher (16) an den oberen Befestigungslaschen (12) der Seitenteile (5, 6) vorgesehen sind.7. Radiator according to claim 6, characterized in that the elongated holes (16) on the upper fastening tabs (12) of the side parts (5, 6) are provided. 8. Kühler nach Anspruch 1, dadurch gekennzeichnet, daß die Verbindungsbolzen (18) als Steckstifte ausgebildet und mit Federklammern (20) gesichert sind, die in eine Nut (18b) der Verbindungsbolzen (18) einrasten.8. Cooler according to claim 1, characterized in that the connecting bolts (18) are designed as plug pins and are secured with spring clips (20) which snap into a groove (18b) of the connecting bolts (18). 9. Kühler nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Wasserkästen (1, 2) aus Kunststoff hergestellt sind.9. Cooler according to one of claims 1 to 8, characterized in that the water boxes (1, 2) are made of plastic. 10. Kühler nach Anspruch 9, dadurch gekennzeichnet, daß in die Bohrungen (17) in den Wasserkästen (1, 2) aus Metall bestehende Stützhülsen (19) eingesetzt sind.10. Cooler according to claim 9, characterized in that in the bores (17) in the water boxes (1, 2) made of metal support sleeves (19) are used.
EP84100405A 1983-02-05 1984-01-17 Water/air cooler for water cooled internal combustion engines, especially for commercial vehicles Expired EP0115795B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3303986 1983-02-05
DE19833303986 DE3303986A1 (en) 1983-02-05 1983-02-05 WATER / AIR COOLER FOR WATER-COOLED COMBUSTION ENGINES, ESPECIALLY COMMERCIAL VEHICLES

Publications (2)

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EP0115795A1 true EP0115795A1 (en) 1984-08-15
EP0115795B1 EP0115795B1 (en) 1986-08-27

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EP84100405A Expired EP0115795B1 (en) 1983-02-05 1984-01-17 Water/air cooler for water cooled internal combustion engines, especially for commercial vehicles

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US (1) US4540044A (en)
EP (1) EP0115795B1 (en)
DE (2) DE3303986A1 (en)
ES (1) ES276189Y (en)

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FR2602581A1 (en) * 1986-08-07 1988-02-12 Valeo HEAT EXCHANGER WITH PLASTIC TUBE AND FLUID BOXES
EP0504034A1 (en) * 1991-03-12 1992-09-16 Valeo Thermique Moteur Heat exchanger with connected water boxes for cars
FR2697907A1 (en) * 1992-11-09 1994-05-13 Valeo Thermique Moteur Sa Heat exchanger with water boxes connected by uprights, especially for motor vehicles.

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US5360059A (en) * 1988-10-06 1994-11-01 Modine Manufacturing Company Frame for a vehicular radiator
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EP0256913A1 (en) * 1986-08-07 1988-02-24 Valeo Thermique Moteur Heat exchanger having a tube bundle and plastic header boxes
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Also Published As

Publication number Publication date
US4540044A (en) 1985-09-10
EP0115795B1 (en) 1986-08-27
DE3303986A1 (en) 1984-08-09
ES276189U (en) 1984-04-01
ES276189Y (en) 1984-11-16
DE3460519D1 (en) 1986-10-02

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