EP2932082A1 - Housing and method for producing the housing - Google Patents

Housing and method for producing the housing

Info

Publication number
EP2932082A1
EP2932082A1 EP13815417.4A EP13815417A EP2932082A1 EP 2932082 A1 EP2932082 A1 EP 2932082A1 EP 13815417 A EP13815417 A EP 13815417A EP 2932082 A1 EP2932082 A1 EP 2932082A1
Authority
EP
European Patent Office
Prior art keywords
housing
heating
cooling channel
tube
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.)
Withdrawn
Application number
EP13815417.4A
Other languages
German (de)
French (fr)
Inventor
Thomas Hannewald
Joachim KÜCH
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of EP2932082A1 publication Critical patent/EP2932082A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F01P3/12—Arrangements for cooling other engine or machine parts
    • F01P3/14—Arrangements for cooling other engine or machine parts for cooling intake or exhaust valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/72—Housings
    • F02M26/73—Housings with means for heating or cooling the EGR valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves

Definitions

  • the invention relates to a housing with a channel in which a flap is rotatably mounted on a shaft.
  • the invention further relates to a method for producing such a housing.
  • Such housings are used as throttle body or for air and exhaust valves in motor vehicles and are thus known.
  • These cast aluminum housings are thermally stressed due to the medium flowing through them.
  • throttle bodies are warmed to prevent icing, while the housings of air and exhaust valves must be cooled due to the high operating temperatures.
  • For cooling water is used, which is guided through one or more channels in the housing.
  • To produce the channels these are introduced into the cast housing by mechanical processing, for example drilling.
  • connection pipes are screwed or pressed in at the channel ends.
  • the connection pipes are additionally sealed or glued.
  • the disadvantage is that the channel can run only in the areas where it can be produced by means of mechanical processing.
  • the channel does not always have an optimal course corresponding to its function and thus the housing can not be optimally heated or cooled.
  • the channel can always be composed only of rectilinear sections, the number of sections to be introduced being limited due to the expenditure for the machining. This also means that the channel is not optimally adapted to its function.
  • the mechanical introduction of the channel causes a series of processing openings, which must be closed and sealed ⁇ addition.
  • the channels created in this way often show abrupt Changes in the direction, which lead to turbulence and thus to loss of performance.
  • pores and voids contained in the cast housing can be connected to the channel in channels produced by mechanical processing, which may lead to leakage problems.
  • the invention is therefore an object of the invention to provide a housing of the type mentioned, in which the heating or
  • Cooling channel are easier to manufacture and that is easier to connect to the water supply. Another object is to provide a method of manufacturing such a housing.
  • the first object is achieved with a housing in which the heating ⁇ or cooling duct is a tube made of a good heat conducting material that direction changes of the heating or cooling channel have a steady course and that the heating or cooling channel is enclosed by the housing.
  • the separate tube With the separate tube, this can be integrated in the case of a manufacturable by casting housing during the casting process in the housing. In this way, the heating or cooling channel is generated. This eliminates the subsequent mechanical A ⁇ bring the heating or cooling channel, which requires much more effort. This also eliminates the sealing of the machining holes. Overall, the housing consists of fewer components and is therefore less expensive.
  • the heating or cooling channel As a separate tube, the heating or cooling channel can now be formed in advance and thus be much better adapted in its course to its function.
  • the heating or cooling channel according to the invention may extend in areas that are inaccessible to channels created by mechanical processing.
  • the direction of flow changes in the heating or cooling channel with a radius and thus constantly deflected, whereby turbulence is minimized.
  • the tube of the heating or cooling channel made of aluminum or copper. These materials ensure effective heating or cooling due to their good thermal conductivity, whereby a smaller channel cross section or a small heating or cooling medium quantity ver ⁇ turns can be.
  • the second object is achieved in that a tube is brought into the shape of running in the housing heating or cooling channel, then that the heating or cooling ⁇ channel is inserted in the manner of a core in a mold for the housing and then at Casting the housing is surrounded.
  • the housing produced by this method can be formed with heating or cooling channels, which have a curved course.
  • the radii cause less turbulence in the flow are generated.
  • the tube is filled with an incompressible and heat-resistant medium before it is brought into the shape of running in the housing heating or cooling channel. In this way, it is ensured that during the shaping of the tube only its course, but not the cross section of the tube is changed.
  • the housing can be produced inexpensively according to a further embodiment, if the at least one tube for the at least one heating or cooling channel in such a form is that its tube ends have an adapted to the mold for the housing alignment, as this can make the mold easier and thus cheaper. If the pipe ends have to have a different orientation when installed, the pipe ends will be bent after casting the housing in the position in which they are connected to the connecting lines. To ensure a tight and long-term stable connection of the pipe ends with the connection lines, the geometry of the pipe ends must have a high accuracy. In order to avoid damage to the pipe ends during the casting process, in a further embodiment, the pipe ends are formed after the casting of the housing for connecting one line.
  • FIG. 2 shows an inventive housing.
  • Figure 1 shows a housing 1 of an exhaust valve, which is cut in the region of the cooling channel 2.
  • the housing 1 is made of die-cast aluminum and has a channel 3 through which the exhaust gas flows.
  • a flap 4 is rotatably mounted on a non-visible shaft.
  • the shaft is driven via an unillustrated transmission by an electric motor which is arranged in a chamber 5 of the housing 1. Due to the hot exhaust gas, the housing 1 must be cooled in the region of the flap 4.
  • the cooling channel 2 consists of four straight sections 6, which have been drilled in the housing 1, wherein each two adjacent sections abut each other at right angles. This unsteady course of the directional changes creates turbulence in the course of the flow.
  • pipe socket 7 In the inlet and outlet forming Sections 6 pipe socket 7 are used, to which the lines of the coolant circuit are connected.
  • the other two sections 6 in the central region are closed at their ends not belonging to the cooling channel 2 with sealing plugs 8.
  • By the mutually perpendicular sections 6 of the channel 3 is surrounded at irregular intervals from the cooling channel 2.
  • the housing 1 of the exhaust valve in Figure 2 has up to the cooling channel 2 the same structure.
  • the cooling channel 2 consists of an aluminum tube 9, which was previously filled with a salt. Subsequently, the tube 9 was bent to the end 10 in the course dar ⁇ made, with two straight sections 6 are connected to a radius 12. On the one hand, this cooling process minimizes turbulence and, on the other hand, the cooling channel 2 is guided around the duct 3 for the exhaust gas at a virtually constant distance, whereby a substantially more homogeneous cooling becomes possible and the thermal loads on the housing are minimized.
  • the end 10 was originally also in the cutting plane. In this shape, the tube 9 can be easier to insert into the mold for the housing 1. After casting the housing 1, in which the tube 9 was poured into the housing 1, the end 10 was bent in the orientation shown and at both ends 10, 11, the connection contours for connection to the connecting lines produced. With the removal of the salt from the tube 9, the cooling channel 2 is completed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Valve Housings (AREA)

Abstract

The invention relates to a housing (1) comprising a channel (2) in which a flap (4) is rotatably arranged on a shaft, and at least one heating or cooling channel. The heating or cooling channel (2) is a tube (9) made of a highly heat-conducting material and is enclosed by the housing (1), changes in the direction of the heating or cooling channel (2) being continuous.

Description

Beschreibung description
Gehäuse und Verfahren zur Herstellung des Gehäuses Housing and method of manufacturing the housing
Gegenstand der Erfindung ist ein Gehäuse mit einem Kanal, in dem eine Klappe auf einer Welle drehbar angeordnet ist. Gegenstand der Erfindung ist weiter ein Verfahren zur Herstellung eines solchen Gehäuses. The invention relates to a housing with a channel in which a flap is rotatably mounted on a shaft. The invention further relates to a method for producing such a housing.
Derartige Gehäuse werden als Drosselklappenstutzen oder für Luft- und Abgasventile in Kraftfahrzeugen eingesetzt und sind somit bekannt. Diese aus Aluminiumguss bestehenden Gehäuse sind aufgrund des durchströmenden Mediums thermisch belastet. So werden Drosselklappenstutzen zur Vermeidung von Vereisungen gewärmt, während die Gehäuse von Luft- und Abgasventilen aufgrund der hohen Einsatztemperaturen gekühlt werden müssen. Zur Kühlung wird Wasser benutzt, welches durch einen oder mehrere Kanäle im Gehäuse geführt wird. Zur Herstellung der Kanäle werden diese in das Gussgehäuse durch mechanische Bearbeitung, beispielsweise Bohren eingebracht . Zum Anschluss an die Wasserversorgung werden an den Kanalenden Anschlussrohre angeschraubt oder eingepresst. Für eine sichere Abdichtung sind die Anschlussrohre zusätzlich abgedichtet oder verklebt. Nachteilig ist, dass der Kanal nur in den Bereichen verlaufen kann, in denen er mittels der mechanischen Bearbeitung herstellbar ist . Das bedeutet, dass der Kanal nicht immer einen seiner Funktion entsprechenden optimalen Verlauf besitzt und somit das Gehäuse nicht optimal beheizt oder gekühlt werden kann. Weiterhin kann der Kanal bei einem nichtlinearen Verlauf immer nur aus geradlinigen Abschnitten zusammengesetzt werden, wobei aufgrund des Aufwands für die Bearbeitung die Anzahl der einzubringenden Abschnitte begrenzt ist. Auch das hat zur Folge, dass der Kanal nicht optimal an seine Funktion angepasst ist. Zudem bewirkt das mechanische Einbringen des Kanals eine Reihe von Bearbeitungsöffnungen, welche zu¬ sätzlich verschlossen und abgedichtet werden müssen. Schließlich weisen die auf diese Art erzeugten Kanäle oft abrupte Rieh- tungsänderungen auf, welche zu Verwirbelungen und damit zu Leistungsverlusten führen. Such housings are used as throttle body or for air and exhaust valves in motor vehicles and are thus known. These cast aluminum housings are thermally stressed due to the medium flowing through them. For example, throttle bodies are warmed to prevent icing, while the housings of air and exhaust valves must be cooled due to the high operating temperatures. For cooling water is used, which is guided through one or more channels in the housing. To produce the channels, these are introduced into the cast housing by mechanical processing, for example drilling. For connection to the water supply, connection pipes are screwed or pressed in at the channel ends. For secure sealing, the connection pipes are additionally sealed or glued. The disadvantage is that the channel can run only in the areas where it can be produced by means of mechanical processing. This means that the channel does not always have an optimal course corresponding to its function and thus the housing can not be optimally heated or cooled. Furthermore, in the case of a non-linear course, the channel can always be composed only of rectilinear sections, the number of sections to be introduced being limited due to the expenditure for the machining. This also means that the channel is not optimally adapted to its function. In addition, the mechanical introduction of the channel causes a series of processing openings, which must be closed and sealed ¬ addition. Finally, the channels created in this way often show abrupt Changes in the direction, which lead to turbulence and thus to loss of performance.
Weiterhin können bei mittels mechanischer Bearbeitung herge- stellten Kanäle im Gussgehäuse enthaltene Poren und Lunker mit dem Kanal verbunden werden, was unter Umständen zu Dichtheitsproblemen führt. Furthermore, pores and voids contained in the cast housing can be connected to the channel in channels produced by mechanical processing, which may lead to leakage problems.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Gehäuse der eingangs genannten Art zu schaffen, bei dem die Heiz- oderThe invention is therefore an object of the invention to provide a housing of the type mentioned, in which the heating or
Kühlkanal einfacher herzustellen sind und dass einfacher an die Wasserversorgung anzuschließen ist. Eine weitere Aufgabe besteht darin, ein Verfahren zur Herstellung eines solchen Gehäuses anzugeben . Cooling channel are easier to manufacture and that is easier to connect to the water supply. Another object is to provide a method of manufacturing such a housing.
Gelöst wird die erste Aufgabe mit einem Gehäuse bei dem der Heiz¬ oder Kühlkanal ein Rohr aus einem gut wärmeleitenden Material ist, dass Richtungsänderungen des Heiz- oder Kühlkanal einen stetigen Verlauf aufweisen und dass der Heiz- oder Kühlkanal vom Gehäuse umschlossen ist. The first object is achieved with a housing in which the heating ¬ or cooling duct is a tube made of a good heat conducting material that direction changes of the heating or cooling channel have a steady course and that the heating or cooling channel is enclosed by the housing.
Mit dem separaten Rohr kann dieses bei einem mittels Gießen herstellbaren Gehäuse während des Gießprozesses in das Gehäuse integriert werden. Auf diese Weise wird der Heiz- oder Kühlkanal erzeugt. Dadurch entfällt das nachträgliche mechanische Ein¬ bringen des Heiz- oder Kühlkanals, welches wesentlich mehr Aufwand erfordert. Damit entfällt ebenso das Abdichtungen der Bearbeitungsbohrungen. Insgesamt besteht das Gehäuse aus weniger Bauteilen und ist somit kostengünstiger. Mit der Ausbildung des Heiz- oder Kühlkanal als separates Rohr, kann der Heiz- oder Kühlkanal nunmehr vorab geformt werden und somit wesentlich besser in seinem Verlauf an seine Funktion angepasst werden. Insbesondere kann der Heiz- oder Kühlkanal gemäß der Erfindung in Bereichen verlaufen, die Kanälen, welche durch mechanische Bearbeitung erzeugt werden, nicht zugänglich sind . Zudem wird bei Richtungsänderungen die Strömung im Heiz- oder Kühlkanal mit einem Radius und somit stetig umgelenkt, wodurch Verwirbelungen minimiert werden. With the separate tube, this can be integrated in the case of a manufacturable by casting housing during the casting process in the housing. In this way, the heating or cooling channel is generated. This eliminates the subsequent mechanical A ¬ bring the heating or cooling channel, which requires much more effort. This also eliminates the sealing of the machining holes. Overall, the housing consists of fewer components and is therefore less expensive. With the formation of the heating or cooling channel as a separate tube, the heating or cooling channel can now be formed in advance and thus be much better adapted in its course to its function. In particular, the heating or cooling channel according to the invention may extend in areas that are inaccessible to channels created by mechanical processing. In addition, the direction of flow changes in the heating or cooling channel with a radius and thus constantly deflected, whereby turbulence is minimized.
In einer vorteilhaften Ausgestaltung besteht das Rohr des Heizoder Kühlkanals aus Aluminium oder Kupfer. Diese Materialien gewährleisten aufgrund ihrer guten Wärmeleitfähigkeit eine effektive Heizung oder Kühlung, wodurch ein kleinerer Kanalquerschnitt oder eine geringe Heiz- oder Kühlmittelmenge ver¬ wendet werden kann. In an advantageous embodiment, the tube of the heating or cooling channel made of aluminum or copper. These materials ensure effective heating or cooling due to their good thermal conductivity, whereby a smaller channel cross section or a small heating or cooling medium quantity ver ¬ turns can be.
Eine leichtere Montage wird erreicht, wenn die Enden des Heiz¬ oder Kühlkanal zum Anschluss einer Leitung ausgebildet sind. An easier assembly is achieved when the ends of the heating ¬ or cooling channel are designed to connect a line.
Die zweite Aufgabe wird erfindungsgemäß dadurch gelöst, dass ein Rohr in die Form des in dem Gehäuse verlaufenden Heiz- oder Kühlkanal gebracht wird, dass anschließend der Heiz- oder Kühl¬ kanal nach Art eines Kerns in eine Gussform für das Gehäuse eingelegt wird und anschließend beim Gießen des Gehäuses umgössen wird . The second object is achieved in that a tube is brought into the shape of running in the housing heating or cooling channel, then that the heating or cooling ¬ channel is inserted in the manner of a core in a mold for the housing and then at Casting the housing is surrounded.
Die mit diesem Verfahren erzeugten Gehäuse können mit Heiz- oder Kühlkanäle ausgebildet werden, die einen gebogenen Verlauf haben. Neben dem Vorteil, die Kanäle in die Bereiche zu legen, in denen sie ihre größte Wirkung entfalten können, bewirken die Radien dass weniger Verwirbelungen im Strömungsverlauf erzeugt werden . The housing produced by this method can be formed with heating or cooling channels, which have a curved course. In addition to the advantage of placing the channels in the areas where they can exert their greatest effect, the radii cause less turbulence in the flow are generated.
Gemäß einer vorteilhaften Ausgestaltung wird das Rohr mit einem inkompressiblen und hitzebeständigen Medium gefüllt, bevor es in die Form des im Gehäuse verlaufenden Heiz- oder Kühlkanals gebracht wird. Auf diese Weise wird gewährleistet, dass bei der Formgebung des Rohres nur dessen Verlauf, nicht jedoch der Querschnitt des Rohres verändert wird. According to an advantageous embodiment, the tube is filled with an incompressible and heat-resistant medium before it is brought into the shape of running in the housing heating or cooling channel. In this way, it is ensured that during the shaping of the tube only its course, but not the cross section of the tube is changed.
Das Gehäuse lässt sich gemäß einer weiteren Ausgestaltung kostengünstig herstellen, wenn das mindestens eine Rohr für den mindestens einen Heiz- oder Kühlkanal derart in Form gebracht wird, dass seine Rohrenden eine an die Gussform für das Gehäuse angepasste Ausrichtung aufweisen, da sich auf diese Weise die Gussform einfacher und somit kostengünstiger gestalten lässt. Sofern die Rohrenden im eingebauten Zustand eine andere Ausrichtung aufweisen müssen, werden die Rohrenden nach dem Gießen des Gehäuses in die Position gebogen werden, in der sie mit den Anschlussleitungen verbunden werden. Um eine dichte und langzeitstabile Verbindung der Rohrenden mit den Anschlussleitungen zu gewährleisten, muss die Geometrie der Rohrenden eine hohe Genauigkeit aufweisen. Um Beschädigungen der Rohrenden während des Gießprozesses zu vermeiden, werden in einer weiteren Ausgestaltung die Rohrenden nach dem Gießen des Gehäuses zum Anschluss je einer Leitung umgeformt. The housing can be produced inexpensively according to a further embodiment, if the at least one tube for the at least one heating or cooling channel in such a form is that its tube ends have an adapted to the mold for the housing alignment, as this can make the mold easier and thus cheaper. If the pipe ends have to have a different orientation when installed, the pipe ends will be bent after casting the housing in the position in which they are connected to the connecting lines. To ensure a tight and long-term stable connection of the pipe ends with the connection lines, the geometry of the pipe ends must have a high accuracy. In order to avoid damage to the pipe ends during the casting process, in a further embodiment, the pipe ends are formed after the casting of the housing for connecting one line.
An einem Ausführungsbeispiel wird die Erfindung näher be¬ schrieben. Es zeigen in: Fig. 1 das Gehäuse eines Abgasventils nach dem Stand der In one embodiment, the invention will be described in more detail ¬ . 1 shows the housing of an exhaust valve according to the prior art
Technik,  Technology,
Fig. 2 ein erfindungsgemäßes Gehäuse. Figur 1 zeigt ein Gehäuse 1 eines Abgasventils, welches im Bereich des Kühlkanals 2 geschnitten ist. Das Gehäuse 1 besteht aus Aluminium-Druckguss und besitzt einen Kanal 3, durch den das Abgas strömt. In diesem Kanal 3 ist eine Klappe 4 auf einer nicht sichtbaren Welle drehbar gelagert. Die Welle wird über ein nicht dargestelltes Getriebe von einem Elektromotor angetrieben, der in einer Kammer 5 des Gehäuses 1 angeordnet ist. Aufgrund des heißen Abgases muss das Gehäuse 1 im Bereich der Klappe 4 gekühlt werden. Der Kühlkanal 2 besteht aus vier geradlinigen Abschnitten 6, die in das Gehäuse 1 gebohrt wurden, wobei jeweils zwei benachbarte Abschnitte rechtwinklig aufeinander stoßen. Dieser unstetige Verlauf der Richtungsänderungen erzeugt Verwirbe- lungen im Strömungsverlauf. In die den Ein- und Auslass bildenden Abschnitte 6 sind Rohrstutzen 7 eingesetzt, an welche die Leitungen des Kühlmittelkreislaufes angeschlossen werden. Die anderen beiden Abschnitte 6 im Mittelbereich, sind an ihren nicht zum Kühlkanal 2 gehörenden Enden mit Dichtstopfen 8 verschlossen. Durch die rechtwinklig zueinander angeordnet Abschnitte 6 ist der Kanal 3 in ungleichmäßigen Abständen vom Kühlkanal 2 umgeben. Fig. 2 shows an inventive housing. Figure 1 shows a housing 1 of an exhaust valve, which is cut in the region of the cooling channel 2. The housing 1 is made of die-cast aluminum and has a channel 3 through which the exhaust gas flows. In this channel 3, a flap 4 is rotatably mounted on a non-visible shaft. The shaft is driven via an unillustrated transmission by an electric motor which is arranged in a chamber 5 of the housing 1. Due to the hot exhaust gas, the housing 1 must be cooled in the region of the flap 4. The cooling channel 2 consists of four straight sections 6, which have been drilled in the housing 1, wherein each two adjacent sections abut each other at right angles. This unsteady course of the directional changes creates turbulence in the course of the flow. In the inlet and outlet forming Sections 6 pipe socket 7 are used, to which the lines of the coolant circuit are connected. The other two sections 6 in the central region are closed at their ends not belonging to the cooling channel 2 with sealing plugs 8. By the mutually perpendicular sections 6 of the channel 3 is surrounded at irregular intervals from the cooling channel 2.
Das Gehäuse 1 des Abgasventils in Figur 2 besitzt bis auf den Kühlkanal 2 den gleichen Aufbau. Der Kühlkanal 2 besteht aus einem Aluminiumrohr 9, welches vorab mit einem Salz gefüllt wurde. Anschließend wurde das Rohr 9 bis auf das Ende 10 in den dar¬ gestellten Verlauf gebogen, wobei zwei geradlinige Abschnitte 6 mit einem Radius 12 verbunden sind. Durch diesen stetigen Verlauf werden zum einen Verwirbelungen minimiert und zum anderen ist der Kühlkanal 2 mit nahezu konstantem Abstand um den Kanal 3 für das Abgas geführt, wodurch eine wesentlich homogenere Kühlung möglich wird und die thermischen Belastungen des Gehäuses minimiert werden. Das Ende 10 lag ursprünglich ebenfalls in der Schnittebene. In dieser Gestalt lässt sich das Rohr 9 einfacher in die Gussform für das Gehäuse 1 einlegen. Nach dem Gießen des Gehäuses 1, bei dem das Rohr 9 in das Gehäuse 1 eingegossen wurde, wurde das Ende 10 in die gezeigte Ausrichtung gebogen und an beiden Enden 10, 11 die Anschlusskonturen zum Verbinden mit den Anschlussleitungen erzeugt. Mit dem Entfernen des Salzes aus dem Rohr 9 ist der Kühlkanal 2 fertiggestellt. The housing 1 of the exhaust valve in Figure 2 has up to the cooling channel 2 the same structure. The cooling channel 2 consists of an aluminum tube 9, which was previously filled with a salt. Subsequently, the tube 9 was bent to the end 10 in the course dar ¬ made, with two straight sections 6 are connected to a radius 12. On the one hand, this cooling process minimizes turbulence and, on the other hand, the cooling channel 2 is guided around the duct 3 for the exhaust gas at a virtually constant distance, whereby a substantially more homogeneous cooling becomes possible and the thermal loads on the housing are minimized. The end 10 was originally also in the cutting plane. In this shape, the tube 9 can be easier to insert into the mold for the housing 1. After casting the housing 1, in which the tube 9 was poured into the housing 1, the end 10 was bent in the orientation shown and at both ends 10, 11, the connection contours for connection to the connecting lines produced. With the removal of the salt from the tube 9, the cooling channel 2 is completed.

Claims

Patentansprüche claims
1. Gehäuse mit einem Kanal, in dem eine Klappe auf einer Welle drehbar angeordnet ist und dass mindestens ein Heiz- oder Kühlkanal aufweist, d a d u r c h g e k e n n ¬ z e i c h n e t , dass der Heiz- oder Kühlkanal (2) ein Rohr (9) aus einem gut wärmeleitenden Material ist, dass Richtungsänderungen des Heiz- oder Kühlkanal (2) einen stetigen Verlauf aufweisen und dass der Heiz- oder Kühlkanal (2) vom Gehäuse (1) umschlossen ist. 1. Housing with a channel in which a flap is rotatably mounted on a shaft and that has at least one heating or cooling channel, dadurchgekenn ¬ records that the heating or cooling channel (2) a tube (9) made of a good heat conducting material is that changes in direction of the heating or cooling channel (2) have a steady course and that the heating or cooling channel (2) from the housing (1) is enclosed.
2. Gehäuse nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass das Rohr (9) aus Aluminium oder Kupfer besteht. 2. Housing according to claim 1, characterized in that the tube (9) consists of aluminum or copper.
3. Gehäuse nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass die Enden (10, 11) des Rohres (9) zum Anschluss einer Leitung ausgebildet sind. 3. Housing according to claim 1, characterized in that the ends (10, 11) of the tube (9) are designed to connect a line.
4. Verfahren zur Herstellung eines Gehäuses mit mindestens einem Heiz- oder Kühlkanal bei dem ein Rohr in die Form des in dem Gehäuse verlaufenden Heiz- oder Kühlkanal gebracht wird, dass anschließend der Heiz- oder Kühlkanal nach Art eines Kerns in eine Druckgussform für das Gehäuse eingelegt wird und anschließend beim Gießen des Gehäuses umgössen wird . 4. A method for producing a housing having at least one heating or cooling channel in which a tube is brought into the shape of running in the housing heating or cooling channel, then that the heating or cooling channel in the manner of a core in a die-casting mold for the housing is inserted and then umgössen when pouring the housing.
5. Verfahren nach Anspruch 4, d a d u r c h g e k e n n z e i c h n e t , dass das Rohr mit einem inkompressiblen und hitzebeständigen Medium gefüllt wird, bevor es in die5. The method of claim 4, wherein the tube is filled with an incompressible and heat-resistant medium before it is introduced into the
Form des im Gehäuse verlaufenden Heiz- oder Kühlkanals gebracht wird. Form of running in the housing heating or cooling channel is brought.
6. Verfahren nach Anspruch 5, d a d u r c h g e k e n n z e i c h n e t , dass das mindestens eine Rohr für den mindestens einen Heiz- oder Kühlkanal derart in Form gebracht wird, dass seine Rohrenden eine an die Gussform für das Gehäuse angepasste Ausrichtung aufweisen. 6. The method according to claim 5, characterized in that the at least one tube for the at least one heating or cooling channel in such a form is brought that its tube ends have an adapted to the mold for the housing alignment.
7. Verfahren nach Anspruch 6, d a d u r c h g e k e n n z e i c h n e t , dass die Rohrenden nach dem Gießen des Gehäuses in die Position gebogen werden, in der sie mit den Anschlussleitungen verbunden werden. 7. Method according to claim 6, wherein after the housing has been cast, the tube ends are bent into the position in which they are connected to the connection lines.
Verfahren nach Anspruch 6, d a d u r c h g e k e n n z e i c h n e t , dass die Rohrenden nach dem Gießen des Gehäuses zum Anschluss je einer Leitung umgeformt werden. Method according to claim 6, characterized in that, after the casting of the housing, the tube ends are shaped to connect one line each.
EP13815417.4A 2012-12-14 2013-12-10 Housing and method for producing the housing Withdrawn EP2932082A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012223156.0A DE102012223156A1 (en) 2012-12-14 2012-12-14 Housing and method of manufacturing the housing
PCT/EP2013/076092 WO2014090805A1 (en) 2012-12-14 2013-12-10 Housing and method for producing the housing

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EP2932082A1 true EP2932082A1 (en) 2015-10-21

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US (1) US20150308324A1 (en)
EP (1) EP2932082A1 (en)
CN (1) CN104838127A (en)
DE (1) DE102012223156A1 (en)
WO (1) WO2014090805A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150267622A1 (en) * 2014-03-19 2015-09-24 MAGNETI MARELLI S.p.A. Throttle valve for an internal combustion engine provided with a conditioning circuit
US10385786B2 (en) * 2014-06-26 2019-08-20 MAGNETI MARELLI S.p.A. Throttle valve for an internal combustion engine provided with a conditioning circuit
CN105715415B (en) * 2014-12-22 2020-02-14 马涅蒂-马瑞利公司 Electromechanical actuator provided with a regulating circuit for an internal combustion engine
DE102017206372A1 (en) 2017-04-13 2018-10-18 Zf Friedrichshafen Ag Metallic cast component for a housing with a cast-in pipe and gap drainage, as well as manufacturing methods and housings, in particular gearbox housings
DE102017209976A1 (en) 2017-06-13 2018-12-13 Zf Friedrichshafen Ag Cast component with cast-in pipe and manufacturing process
DE102017217387A1 (en) 2017-09-29 2019-04-04 Zf Friedrichshafen Ag Cast component with cast-in pipe and method of manufacture
EP3934829B1 (en) * 2019-03-07 2024-03-06 Pierburg GmbH Valve
DE102019112147A1 (en) * 2019-05-09 2020-11-12 Julius Schüle Druckguss GmbH Method for casting a pipeline into a component to be produced by means of a die-casting process
CN112157182A (en) * 2020-09-23 2021-01-01 柳州市智甲金属科技有限公司 Manufacturing method of cooling heating plate

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE817495C (en) * 1950-04-05 1951-10-18 Bayer Ag Cast fittings with heat exchange channels
DE1221403B (en) * 1961-06-22 1966-07-21 Karl Zur Steege Fa Cast iron housing
DE19730998C2 (en) * 1996-07-19 2001-10-31 Hitachi Ltd Engine operated flow control valve and exhaust gas recirculation control valve for internal combustion engines
JP2004162665A (en) * 2002-11-15 2004-06-10 Denso Corp Exhaust gas recirculation device
JP2007024241A (en) * 2005-07-20 2007-02-01 Denso Corp Fluid control valve
JP4687540B2 (en) * 2006-04-12 2011-05-25 株式会社デンソー Fluid control valve
FI121652B (en) * 2009-04-24 2011-02-28 Waertsilae Finland Oy Procedure for producing an object having a cavity
DE102009037548A1 (en) * 2009-08-17 2011-04-07 Sew-Eurodrive Gmbh & Co. Kg Housing part for a gear, comprises a coolant line, which is connected into the housing part, which is made of a first material such as aluminum, and the coolant line is made of a second material such as steel or stainless steel
DE102010045259A1 (en) * 2010-09-14 2012-03-15 Pierburg Gmbh cooling arrangement
JP5539135B2 (en) * 2010-09-16 2014-07-02 本田技研工業株式会社 Liquid cooling engine with cooling means
DE102011076312A1 (en) * 2011-05-23 2012-11-29 Robert Bosch Gmbh Cooling device useful for housing, comprises a block of power electronics with a cooling structure to be encapsulated, which is supported by medium acting upon cooling structure to be encapsulated, and constitutes cooling surface of housing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2014090805A1 *

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US20150308324A1 (en) 2015-10-29
CN104838127A (en) 2015-08-12
DE102012223156A1 (en) 2014-06-18
WO2014090805A1 (en) 2014-06-19

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