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EP3420255A1 - Nozzle, and heat management module comprising same - Google Patents

Nozzle, and heat management module comprising same

Info

Publication number
EP3420255A1
EP3420255A1 EP17707160.2A EP17707160A EP3420255A1 EP 3420255 A1 EP3420255 A1 EP 3420255A1 EP 17707160 A EP17707160 A EP 17707160A EP 3420255 A1 EP3420255 A1 EP 3420255A1
Authority
EP
European Patent Office
Prior art keywords
connecting piece
sealing ring
management module
rotary valve
piece according
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Withdrawn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
EP17707160.2A
Other languages
German (de)
French (fr)
Inventor
Uli Grosskopf
Michael Weiss
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG 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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP3420255A1 publication Critical patent/EP3420255A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
    • F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0663—Packings
    • F16K5/0689—Packings between housing and plug
    • 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
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P2007/146—Controlling of coolant flow the coolant being liquid using valves

Definitions

  • the invention relates to a connecting piece of a thermal management module of an internal combustion engine, which is insertable into a receiving bore of a housing of the thermal management module, wherein a sealing ring of the connecting piece by means of a compression spring element is biased against a rotary valve.
  • the invention also relates to a thermal management module for a cooling circuit of an internal combustion engine having a housing and a rotary valve rotatably mounted therein, wherein at least one coolant connection with a connecting piece is arranged on the housing, and wherein the coolant flow can be controlled via the coolant connection by means of the rotary valve.
  • a thermal management module With a thermal management module, the operating temperature of an internal combustion engine can be precisely controlled in an optimal temperature window. Thus, for example, the cold running phase of the internal combustion engine can be significantly shortened over an open short circuit, or the operating temperature of the internal combustion engine can be limited to a maximum value.
  • a corresponding thermal management module has a rotary valve rotatably disposed in its housing, with which a mixing ratio of the coolant between the two cooling circuits can be set as a function of a predetermined coolant temperature.
  • a thermal management module with a connecting piece of the aforementioned type is known from DE 10 2014 206 529 A1.
  • the connecting piece When inserting the connecting piece into the housing of the heat management module, it must be ensured with great installation and testing effort that the sealing ring prestressed by the pressure spring element in the direction of the rotary valve is positioned with sufficient accuracy on the rotary valve.
  • An inventive connecting piece of a thermal management module for the cooling circuit of an internal combustion engine can be inserted into a receiving bore of a housing of the thermal management module, wherein a sealing ring of the connecting piece by means of a compression spring element against a rotary valve of the thermal management module is prestressed.
  • the connecting piece should be provided with a stop which limits the longitudinal movement of the sealing ring in the direction of the rotary valve.
  • the connecting piece according to the invention with the compression spring element and the axially biased against the stop sealing ring is a captive mounting unit.
  • a holding element can be fixed to the connecting piece, from which a radial projection forming the stop extends, which engages behind a portion of the sealing ring.
  • the holding element may be a retaining bush, which is fixed to a projection extending in the axial direction or in a recess of the connecting piece.
  • the projection may be provided with a mating surface, with the the connection piece guided in the receiving bore of the housing and ggfls. is pressed into it.
  • the radial projection of the retaining bush may be formed as an at least partially circumferential first collar, which has radially inwardly and engages behind the portion of the sealing ring.
  • the portion of the sealing ring is designed as a radially outwardly facing second collar.
  • the retaining bush can be made of metal or plastic.
  • the connecting piece may have a hollow cylindrical neck portion and a radially outwardly facing flange formed therewith, wherein as a projection of the flange extending with a radial distance to the outer surface of the nozzle portion sleeve extends and wherein the retaining sleeve is mounted on this sleeve.
  • the compression spring element is first pushed over the connecting piece section as far as contact with the flange. Subsequently, the sealing ring is mounted together with a groove ring received therein on the nozzle section. After a radial sealing element is pushed onto the sleeve, the retaining bush is finally fastened to the sleeve, preferably by means of a press fit.
  • the entire connecting piece is pre-assembled and only needs to be inserted into the receiving bore.
  • the sealing ring is preferably made of a thermoplastic material in order to create a reliable and completely sealing to the circumference of the rotary valve can. It is also possible to produce only the cooperating with the rotary valve end portion of the sealing ring of a thermoplastic material, while the remaining area consists of a different material.
  • the first collar of the retaining sleeve must be positioned axially when they are mounted on the connecting piece so that the sealing ring is lifted after mounting the connecting piece in the housing of the rotary valve and lifts against the force of the compression spring element from the stop.
  • the groove ring received in an annular recess of the sealing ring has the effect that the tightness of the connecting piece is secured independently of the respective relative position of the sealing ring relative to the connecting piece section.
  • the groove ring may be made of an elastomeric material and have a sealing lip abutting the outer casing of the nozzle section.
  • the end of the compression spring element can rest directly on the grooved ring or on both the sealing ring and the grooved ring.
  • the compression spring element is an annular wave spring or alternatively a helical spring or a plate spring package.
  • a thermal management module for a cooling circuit of an internal combustion engine has a housing and at least one rotary slide rotatably mounted therein, wherein at least one coolant connection with a connecting piece according to the invention is arranged on the housing.
  • the rotary valve By means of the rotary valve, the amount of coolant flowing in or out via the respective connecting piece can be controlled.
  • Figure 1 shows a longitudinal section through a thermal management module with a rotary valve and an inventively designed connecting piece
  • FIG. 1 shows a heat management module 1 for the control of coolant flow of an internal combustion engine, not shown.
  • the thermal management module 1 has a housing 2, in which a rotary valve 3 is rotatably mounted with a spherical outer contour.
  • the rotary valve 3 is rotated about its longitudinal axis by means of a drive unit 4 and has a control opening 5 which, depending on the position of the rotary valve 3, establishes the connection between a coolant connection 6 and a coolant connection 7. If the rotary valve 3 is rotated out of the illustrated blocking position by 90 °, then the coolant connections 6, 7 communicate with one another via the control opening 5.
  • the coolant connection 7 is formed by a connecting piece 8, which is inserted into a receiving bore 9 of the housing 2.
  • the connecting piece 8 has a hollow cylindrical neck portion 10 and a radially outwardly facing flange 1 1, with which the connecting piece 8 is flanged onto the housing 2 and, if necessary, is screwed.
  • the connecting piece 8 is pressed with a cylindrical mating surface 12 in the receiving bore 9 and receives a compression spring element 13 which surrounds the nozzle portion 10 as an annular corrugated spring and is supported with its first end 14 on a rotary valve 3 facing end face 15 of the flanges 1 1.
  • the connecting piece 8 comprises a sealing ring 16 which is guided longitudinally displaceably on the outer jacket of the nozzle section 10 and which is prestressed in the direction of the rotary slide 3 by means of the compression spring element 13 and is sealingly brought into contact with its outer contour.
  • the compression spring element 13 bears with its second end 17 against a groove ring 18 received within the sealing ring 16.
  • the connecting piece 8 further comprises a sleeve 19 extending at a radial distance from the outer shell of the nozzle section 10 and the receiving bore 9, which extends from the end face 15 of the flanges 1 1.
  • a retaining sleeve 20 is fixed, which encloses the sleeve 19 by means of a press fit and at its the rotary valve 3 end portion facing a radially inward, circumferential first collar 21 has.
  • a radial sealing element 22, here an O-ring which surrounds the sleeve 19 and sealingly abuts in the receiving bore 9.
  • the sealing ring 16 has a cylindrical recess 16a for the grooved ring 18, a radially outwardly pointing second collar 23 and an axially directed sealing lip 16b for sealing engagement with the rotary valve 3.
  • the first collar 21 of the retaining sleeve 20 engages behind the second collar 23 of the sealing ring 16, wherein the abutting collar 21 and 23 form an axial stop 24 which limits the axial movement of the sealing ring 16 in the direction of the rotary valve 3.
  • the axial stroke of the sealing ring 16 to the stop position can be adjusted in the preassembly of the connecting piece 8 by the axial Aufpressproof the retaining sleeve 20 on the sleeve 19.
  • the connecting piece 8 is shown in the preassembled state before it is inserted into the receiving bore 9 of the housing 2.
  • the compression spring element 13 which presses on the sealing ring 16, would push it from the hollow cylindrical neck portion 10, if not the stop 24 would limit the axial outward movement of the sealing ring 16.
  • the sealing ring 16 is in Figure 1 on the circumference of the rotary valve 3, wherein the collar 23 and the collar 21 are axially spaced.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Temperature-Responsive Valves (AREA)
  • Taps Or Cocks (AREA)
  • Multiple-Way Valves (AREA)

Abstract

A nozzle (8) of a heat management module (1) of an internal combustion engine can be inserted into a seating hole (9) in a housing (2) of the heat management module. The aim is to be able to brace a sealing ring (16) of the nozzle against a rotary valve (3) by means of a compression spring element (13). The nozzle is to be provided with a stop (24) that limits the longitudinal movement of the sealing ring in the direction of the rotary valve.

Description

Anschlussstutzen und Wärmemanagementmodul mit einem solchen  Connecting piece and thermal management module with such
Die Erfindung betrifft einen Anschlussstutzen eines Wärmemanagementmoduls einer Brennkraftmaschine, der in eine Aufnahmebohrung eines Gehäuses des Wärmemanagementmoduls einsetzbar ist, wobei ein Dichtring des Anschlussstutzens mittels eines Druckfederelements gegen einen Drehschieber vorspannbar ist. The invention relates to a connecting piece of a thermal management module of an internal combustion engine, which is insertable into a receiving bore of a housing of the thermal management module, wherein a sealing ring of the connecting piece by means of a compression spring element is biased against a rotary valve.
Die Erfindung betrifft außerdem ein Wärmemanagementmodul für einen Kühlkreislauf einer Brennkraftmaschine mit einem Gehäuse und einem darin drehbar gela- gerten Drehschieber, wobei an dem Gehäuse zumindest ein Kühlmittelanschluss mit einem Anschlussstutzen angeordnet ist, und wobei mittels des Drehschiebers der Kühlmittelstrom über den Kühlmittelanschluss steuerbar ist. The invention also relates to a thermal management module for a cooling circuit of an internal combustion engine having a housing and a rotary valve rotatably mounted therein, wherein at least one coolant connection with a connecting piece is arranged on the housing, and wherein the coolant flow can be controlled via the coolant connection by means of the rotary valve.
Mit einem Wärmemanagementmodul kann die Betriebstemperatur einer Brenn- kraftmaschine präzise in einem optimalen Temperaturfenster gesteuert werden. Damit kann beispielsweise die Kaltlaufphase der Brennkraftmaschine über einen geöffneten Kurzschlusskreis signifikant verkürzt werden, oder die Betriebstemperatur der Brenn kraftmaschine kann auf einen maximalen Wert begrenzt werden. Zur Regelung und Verteilung des Kühlmittelstroms in einem zwei Kreisläufe auf- weisenden Kühlsystem der Brennkraftmaschine weist ein entsprechendes Wärmemanagementmodul einen in dessen Gehäuse drehbar angeordneten Drehschieber auf, mit dem ein Mischverhältnis des Kühlmittels zwischen den beiden Kühlkreisläufen in Abhängigkeit von einer vorgegebenen Kühlmitteltemperatur eingestellt werden kann. With a thermal management module, the operating temperature of an internal combustion engine can be precisely controlled in an optimal temperature window. Thus, for example, the cold running phase of the internal combustion engine can be significantly shortened over an open short circuit, or the operating temperature of the internal combustion engine can be limited to a maximum value. For controlling and distributing the coolant flow in a cooling system of the internal combustion engine having two circuits, a corresponding thermal management module has a rotary valve rotatably disposed in its housing, with which a mixing ratio of the coolant between the two cooling circuits can be set as a function of a predetermined coolant temperature.
Ein Wärmemanagementmodul mit einem Anschlussstutzen der eingangs genannten Art ist aus der DE 10 2014 206 529 A1 bekannt. Beim Einsetzen des Anschlussstutzens in das Gehäuse des Wärmemanagementmoduls muss mit großem Montage- und Prüfaufwand sicher gestellt werden, dass der durch das Druck- federelement in Richtung des Drehschiebers vorgespannte Dichtring mit ausreichend genauer Ausrichtung auf dem Drehschieber positioniert wird. A thermal management module with a connecting piece of the aforementioned type is known from DE 10 2014 206 529 A1. When inserting the connecting piece into the housing of the heat management module, it must be ensured with great installation and testing effort that the sealing ring prestressed by the pressure spring element in the direction of the rotary valve is positioned with sufficient accuracy on the rotary valve.
Es ist daher Aufgabe der Erfindung, einen Anschlussstutzen eines Wärmema- nagementmoduls zu schaffen, dessen anschließende Montage ohne das Risiko von Montagefehlern erfolgen kann. It is therefore an object of the invention to provide a connecting piece of a heat ma management module, the subsequent assembly of which can take place without the risk of assembly errors.
Diese Aufgabe wird durch die unabhängigen Patentansprüche gelöst. Vorteilhafte Ausgestaltungen sind in den abhängigen Patentansprüchen angegeben. This object is solved by the independent claims. Advantageous embodiments are specified in the dependent claims.
Ein erfindungsgemäßer Anschlussstutzen eines Wärmemanagementmoduls für den Kühlkreislauf einer Brennkraftmaschine ist in eine Aufnahmebohrung eines Gehäuses des Wärmemanagementmoduls einsetzbar, wobei ein Dichtring des Anschlussstutzens mittels eines Druckfederelements gegen einen Drehschieber des Wärmemanagementmoduls vorspannbar ist. Dabei soll der Anschlussstutzen mit einem Anschlag versehen sein, der die Längsbewegung des Dichtrings in Richtung des Drehschiebers begrenzt. Mit anderen Worten stellt der erfindungsgemäße Anschlussstutzen mit dem Druckfederelement und dem axial gegen den Anschlag vorgespannten Dichtring eine verliersichere Montageeinheit dar. Beim Einsetzen der Montageeinheit in das Gehäuse ist hierdurch nicht nur die ausreichend genaue Ausrichtung des Dichtrings gegenüber dem Drehschieber sichergestellt, sondern als Voraussetzung dafür wird auch ein vorheriges Lösen und Herunterfallen des Dichtrings und ggfls. auch des Druckfederelements vom Stutzen verhindert. An dem vormontierten Anschlussstutzen kann außerdem vor dessen Einsetzen in das Gehäuse eine Sichtkontrolle vorgenommen und festgestellt werden, ob der Anschlussstutzen mit sämtlichen Dichtelementen versehen wurde. Denn das Druckfederelement schiebt den Dichtring axial soweit über das axiale Ende des hohlzylindrischen Stutzenabschnitts, dass beispielsweise ein innerhalb des Dichtrings angeordneter Nutring sichtbar ist. An inventive connecting piece of a thermal management module for the cooling circuit of an internal combustion engine can be inserted into a receiving bore of a housing of the thermal management module, wherein a sealing ring of the connecting piece by means of a compression spring element against a rotary valve of the thermal management module is prestressed. In this case, the connecting piece should be provided with a stop which limits the longitudinal movement of the sealing ring in the direction of the rotary valve. In other words, the connecting piece according to the invention with the compression spring element and the axially biased against the stop sealing ring is a captive mounting unit. When inserting the mounting unit into the housing not only the sufficiently accurate alignment of the sealing ring with respect to the rotary valve is ensured, but as a prerequisite for it also a previous loosening and falling of the sealing ring and if necessary. Also prevents the compression spring element from the nozzle. On the preassembled connecting piece can also be made before its insertion into the housing, a visual inspection and determined whether the connecting piece has been provided with all the sealing elements. For the compression spring element pushes the sealing ring axially so far beyond the axial end of the hollow cylindrical neck portion that, for example, a groove ring arranged within the sealing ring is visible.
Am Anschlussstutzen kann ein Halteelement fixiert sein, von dem ein den An- schlag bildender Radialvorsprung ausgeht, der einen Abschnitt des Dichtrings hintergreift. Das Halteelement kann eine Haltebuchse sein, die an einem in axialer Richtung verlaufenden Vorsprung oder in einer Ausnehmung des Anschlussstutzens fixiert ist. Der Vorsprung kann mit einer Passfläche versehen sein, mit der der Anschlussstutzen in der Aufnahmebohrung des Gehäuses geführt und ggfls. darin eingepresst ist. A holding element can be fixed to the connecting piece, from which a radial projection forming the stop extends, which engages behind a portion of the sealing ring. The holding element may be a retaining bush, which is fixed to a projection extending in the axial direction or in a recess of the connecting piece. The projection may be provided with a mating surface, with the the connection piece guided in the receiving bore of the housing and ggfls. is pressed into it.
Der Radialvorsprung der Haltebuchse kann als zumindest teilweise umlaufender erster Kragen ausgebildet sein, der radial nach innen weist und den Abschnitt des Dichtrings hintergreift. Vorzugsweise ist der Abschnitt des Dichtrings als radial nach außen weisender zweiter Kragen ausgebildet. Die Haltebuchse kann aus Metall oder Kunststoff sein. Der Anschlussstutzen kann einen hohlzylindrischen Stutzenabschnitt und einen gemeinsam mit diesem ausgebildeten, radial nach außen weisenden Flansch aufweisen, wobei als Vorsprung von dem Flansch eine mit radialem Abstand zum Außenmantel des Stutzenabschnitts verlaufende Hülse ausgeht und wobei die Haltebuchse auf dieser Hülse befestigt ist. Zur Montage des Anschlussstutzens wird zunächst das Druckfederelement über den Stutzenabschnitt bis zur Anlage an den Flansch geschoben. Anschließend wird der Dichtring gemeinsam mit einem darin aufgenommenen Nutring auf den Stutzenabschnitt montiert. Nachdem auf die Hülse ein Radialdichtelement aufgeschoben ist, wird zuletzt die Haltebuchse auf der Hülse befestigt, vorzugsweise mittels eines Pressverbands. Somit ist der gesamte Anschlussstutzen vormontiert und muss nur noch in die Aufnahmebohrung eingesetzt werden. The radial projection of the retaining bush may be formed as an at least partially circumferential first collar, which has radially inwardly and engages behind the portion of the sealing ring. Preferably, the portion of the sealing ring is designed as a radially outwardly facing second collar. The retaining bush can be made of metal or plastic. The connecting piece may have a hollow cylindrical neck portion and a radially outwardly facing flange formed therewith, wherein as a projection of the flange extending with a radial distance to the outer surface of the nozzle portion sleeve extends and wherein the retaining sleeve is mounted on this sleeve. To mount the connecting piece, the compression spring element is first pushed over the connecting piece section as far as contact with the flange. Subsequently, the sealing ring is mounted together with a groove ring received therein on the nozzle section. After a radial sealing element is pushed onto the sleeve, the retaining bush is finally fastened to the sleeve, preferably by means of a press fit. Thus, the entire connecting piece is pre-assembled and only needs to be inserted into the receiving bore.
Der Dichtring besteht vorzugsweise aus einem thermoplastischen Kunststoff, um sich zuverlässig und vollständig abdichtend an den Umfang des Drehschiebers anlegen zu können. Es besteht auch die Möglichkeit, nur den mit dem Drehschieber zusammenwirkenden Endabschnitt des Dichtrings aus einem thermoplastischen Kunststoff herzustellen, während der übrige Bereich aus einem anderen Werkstoff besteht. Der erste Kragen der Haltebuchse muss bei deren Montage auf den Anschlussstutzen axial so positioniert sein, dass der Dichtring nach der Montage des Anschlussstutzens in das Gehäuse vom Drehschieber angehoben wird und entgegen der Kraft des Druckfederelements vom Anschlag abhebt. Das axial zwischen dem Flansch und der Haltebuchse angeordnete Radialdichtelement, das die Hülse umlaufend umschließt, dichtet den Spalt zwischen dem Anschlussstutzen und dem Gehäuse ab. The sealing ring is preferably made of a thermoplastic material in order to create a reliable and completely sealing to the circumference of the rotary valve can. It is also possible to produce only the cooperating with the rotary valve end portion of the sealing ring of a thermoplastic material, while the remaining area consists of a different material. The first collar of the retaining sleeve must be positioned axially when they are mounted on the connecting piece so that the sealing ring is lifted after mounting the connecting piece in the housing of the rotary valve and lifts against the force of the compression spring element from the stop. The radially arranged between the flange and the retaining sleeve radial sealing element, which surrounds the sleeve circumferentially seals the gap between the connecting piece and the housing.
Der in einer ringförmigen Ausnehmung des Dichtrings aufgenommene Nutring bewirkt, dass die Dichtheit des Anschlussstutzens unabhängig von der jeweiligen Relativstellung des Dichtrings gegenüber dem Stutzenabschnitt gesichert ist. Der Nutring kann aus einem elastomeren Werkstoff hergestellt sein und eine am Au- ßenmantel des Stutzenabschnitts anliegende Dichtlippe aufweisen. Das Ende des Druckfederelements kann unmittelbar am Nutring oder sowohl am Dichtring als auch am Nutring anliegen. The groove ring received in an annular recess of the sealing ring has the effect that the tightness of the connecting piece is secured independently of the respective relative position of the sealing ring relative to the connecting piece section. The groove ring may be made of an elastomeric material and have a sealing lip abutting the outer casing of the nozzle section. The end of the compression spring element can rest directly on the grooved ring or on both the sealing ring and the grooved ring.
Das Druckfederelement ist eine ringförmige Wellfeder oder alternativ eine Schrau- benfeder oder ein Tellerfederpaket. The compression spring element is an annular wave spring or alternatively a helical spring or a plate spring package.
Ein Wärmemanagementmodul für einen Kühlkreislauf einer Brennkraftmaschine weist ein Gehäuse und wenigstens einen darin drehbar gelagerten Drehschieber auf, wobei an dem Gehäuse zumindest ein Kühlmittelanschluss mit einem erfin- dungsgemäßen Anschlussstutzen angeordnet ist. Mittels des Drehschiebers ist die über den jeweiligen Anschlussstutzen ein- oder ausströmende Kühlmittelmenge steuerbar. A thermal management module for a cooling circuit of an internal combustion engine has a housing and at least one rotary slide rotatably mounted therein, wherein at least one coolant connection with a connecting piece according to the invention is arranged on the housing. By means of the rotary valve, the amount of coolant flowing in or out via the respective connecting piece can be controlled.
Eine bevorzugte Ausführungsform der Erfindung wird nachfolgend anhand der Fi- guren näher erläutert. Es zeigen: A preferred embodiment of the invention is explained in more detail below with reference to the figures. Show it:
Figur 1 einen Längsschnitt durch ein Wärmemanagementmodul mit einem Drehschieber und einem erfindungsgemäß ausgebildeten Anschlussstutzen und Figure 1 shows a longitudinal section through a thermal management module with a rotary valve and an inventively designed connecting piece and
Figur 2 einen Längsschnitt des vormontierten Anschlussstutzens. 2 shows a longitudinal section of the preassembled connecting piece.
Figur 1 zeigt ein Wärmemanagementmodul 1 für die Steuerung von Kühlmittel- strömen einer nicht dargestellten Brennkraftmaschine. Das Wärmemanagementmodul 1 weist ein Gehäuse 2 auf, in dem ein Drehschieber 3 mit einer kugelförmigen Außenkontur drehbar gelagert ist. Der Drehschieber 3 wird mittels einer Antriebseinheit 4 um seine Längsachse verdreht und weist eine Steueröffnung 5 auf, die je nach Stellung des Drehschiebers 3 die Verbindung zwischen einem Kühlmit- telanschluss 6 und einem Kühlmittelanschluss 7 herstellt. Wird der Drehschieber 3 aus der dargestellten Sperrstellung heraus um 90° verdreht, so kommunizieren die Kühlmittelanschlüsse 6, 7 über die Steueröffnung 5 miteinander. FIG. 1 shows a heat management module 1 for the control of coolant flow of an internal combustion engine, not shown. The thermal management module 1 has a housing 2, in which a rotary valve 3 is rotatably mounted with a spherical outer contour. The rotary valve 3 is rotated about its longitudinal axis by means of a drive unit 4 and has a control opening 5 which, depending on the position of the rotary valve 3, establishes the connection between a coolant connection 6 and a coolant connection 7. If the rotary valve 3 is rotated out of the illustrated blocking position by 90 °, then the coolant connections 6, 7 communicate with one another via the control opening 5.
Wie Figur 1 weiterhin zu entnehmen ist, ist der Kühlmittelanschluss 7 durch einen Anschlussstutzen 8 gebildet, der in eine Aufnahmebohrung 9 des Gehäuses 2 eingesetzt ist. Der Anschlussstutzen 8 hat einen hohlzylindrischen Stutzenabschnitt 10 und einen radial nach außen weisenden Flansch 1 1 , mit dem der Anschlussstutzen 8 auf dem Gehäuse 2 angeflanscht ist und erforderlichenfalls verschraubt ist. Der Anschlussstutzen 8 ist mit einer zylindrischen Passfläche 12 in die Aufnahmebohrung 9 eingepresst und nimmt ein Druckfederelement 13 auf, das als ringförmige Wellfeder den Stutzenabschnitt 10 umschließt und sich mit seinem ersten Ende 14 an einer dem Drehschieber 3 zugewandten Stirnfläche 15 des Flansche 1 1 abstützt. As can also be seen from FIG. 1, the coolant connection 7 is formed by a connecting piece 8, which is inserted into a receiving bore 9 of the housing 2. The connecting piece 8 has a hollow cylindrical neck portion 10 and a radially outwardly facing flange 1 1, with which the connecting piece 8 is flanged onto the housing 2 and, if necessary, is screwed. The connecting piece 8 is pressed with a cylindrical mating surface 12 in the receiving bore 9 and receives a compression spring element 13 which surrounds the nozzle portion 10 as an annular corrugated spring and is supported with its first end 14 on a rotary valve 3 facing end face 15 of the flanges 1 1.
Der Anschlussstutzen 8 umfasst einen am Außenmantel des Stutzenabschnitts 10 längsverschiebbar geführten Dichtring 16, der mittels des Druckfederelements 13 in Richtung des Drehschiebers 3 vorgespannt und mit dessen Außenkontur dichtend in Anlage gebracht wird. Zu diesem Zweck liegt das Druckfederelement 13 mit seinem zweiten Ende 17 an einem innerhalb des Dichtrings 16 aufgenommenen Nutring 18 an. The connecting piece 8 comprises a sealing ring 16 which is guided longitudinally displaceably on the outer jacket of the nozzle section 10 and which is prestressed in the direction of the rotary slide 3 by means of the compression spring element 13 and is sealingly brought into contact with its outer contour. For this purpose, the compression spring element 13 bears with its second end 17 against a groove ring 18 received within the sealing ring 16.
Der Anschlussstutzen 8 umfasst weiterhin eine mit radialem Abstand zum Außenmantel des Stutzenabschnitts 10 und zur Aufnahmebohrung 9 verlaufende Hülse 19, die von der Stirnfläche 15 des Flansche 1 1 ausgeht. An der Hülse 19 ist eine Haltebuchse 20 befestigt, die die Hülse 19 mittels eines Pressverbands umschließt und die an ihrem dem Drehschieber 3 zugewandten Endabschnitt einen radial einwärtigen, umlaufenden ersten Kragen 21 aufweist. Zwischen dem Flansch 1 1 und der Haltebuchse 20 ist ein Radialdichtelement 22, hier ein O-Ring angeordnet, der die Hülse 19 umschließt und dichtend in der Aufnahmebohrung 9 anliegt. Wie deutlicher aus Figur 2 hervorgeht, weist der Dichtring 16 eine zylindrische Ausnehmung 16a für den Nutring 18, einen radial nach außen weisenden zweiten Kragen 23 und eine axial gerichtete Dichtlippe 16b zur dichtenden Anlage am Drehschieber 3 auf. Der erste Kragen 21 der Haltebuchse 20 hintergreift den zweiten Kragen 23 des Dichtrings 16, wobei die aneinander anliegenden Kragen 21 und 23 einen axialen Anschlag 24 bilden, der die Axialbewegung des Dichtrings 16 in Richtung des Drehschiebers 3 begrenzt. Der Axialhub des Dichtrings 16 bis zur Anschlagposition kann bei der Vormontage des Anschlussstutzens 8 durch das axiale Aufpressmaß der Haltebuchse 20 auf die Hülse 19 eingestellt werden. In Figur 2 ist der Anschlussstutzen 8 in vormontiertem Zustand dargestellt, bevor dieser in die Aufnahmebohrung 9 des Gehäuses 2 eingesetzt wird. Das Druckfederelement 13, das auf den Dichtring 16 drückt, würde diesen von dem hohlzylindrischen Stutzenabschnitt 10 schieben, wenn nicht der Anschlag 24 die axiale Auswärtsbewegung des Dichtrings 16 begrenzen würde. Demgegenüber liegt der Dichtring 16 in Figur 1 am Umfang des Drehschiebers 3 an, wobei der Kragen 23 und der Kragen 21 axial beabstandet sind. The connecting piece 8 further comprises a sleeve 19 extending at a radial distance from the outer shell of the nozzle section 10 and the receiving bore 9, which extends from the end face 15 of the flanges 1 1. On the sleeve 19, a retaining sleeve 20 is fixed, which encloses the sleeve 19 by means of a press fit and at its the rotary valve 3 end portion facing a radially inward, circumferential first collar 21 has. Between the Flange 1 1 and the retaining sleeve 20 is a radial sealing element 22, here an O-ring, which surrounds the sleeve 19 and sealingly abuts in the receiving bore 9. As can be seen more clearly from FIG. 2, the sealing ring 16 has a cylindrical recess 16a for the grooved ring 18, a radially outwardly pointing second collar 23 and an axially directed sealing lip 16b for sealing engagement with the rotary valve 3. The first collar 21 of the retaining sleeve 20 engages behind the second collar 23 of the sealing ring 16, wherein the abutting collar 21 and 23 form an axial stop 24 which limits the axial movement of the sealing ring 16 in the direction of the rotary valve 3. The axial stroke of the sealing ring 16 to the stop position can be adjusted in the preassembly of the connecting piece 8 by the axial Aufpressmaß the retaining sleeve 20 on the sleeve 19. In Figure 2, the connecting piece 8 is shown in the preassembled state before it is inserted into the receiving bore 9 of the housing 2. The compression spring element 13, which presses on the sealing ring 16, would push it from the hollow cylindrical neck portion 10, if not the stop 24 would limit the axial outward movement of the sealing ring 16. In contrast, the sealing ring 16 is in Figure 1 on the circumference of the rotary valve 3, wherein the collar 23 and the collar 21 are axially spaced.
Bezugszeichenliste 1 Wärmemanagementmodul LIST OF REFERENCES 1 thermal management module
2 Gehäuse  2 housings
3 Drehschieber  3 rotary valves
4 Antriebseinheit  4 drive unit
5 Steueröffnung  5 control opening
6 Kühlmittelanschluss 6 coolant connection
7 Kühlmittelanschluss  7 coolant connection
8 Anschlussstutzen  8 connecting pieces
9 Aufnahmebohrung hohlzylindrischer Stutzenabschnitt9 receiving hole hollow cylindrical neck section
Flansch flange
umlaufende Passfläche  circumferential mating surface
Druckfederelement  Compression spring element
erstes Ende  first end
Stirnfläche  face
Dichtring seal
a zylindrische Ausnehmungb axial gerichtete Dichtlippe a cylindrical recessb axially directed sealing lip
zweites Ende  second end
Nutring  Nutring
Hülse  shell
Haltebuchse  retaining bush
erster Kragen  first collar
Radialdichtelement  Radial sealing element
zweiter Kragen  second collar
axialer Anschlag  axial stop

Claims

Patentansprüche claims
1 . Anschlussstutzen eines Wärmemanagementmoduls (1 ) einer Brennkraftmaschine, der in eine Aufnahmebohrung (9) eines Gehäuses (2) des Wärmema- nagementmoduls (1 ) einsetzbar ist, wobei ein Dichtring (16) des Anschlussstutzens (8) mittels eines Druckfederelements (13) gegen einen Drehschieber (3) vorspannbar ist, dadurch gekennzeichnet, dass der Anschlussstutzen (8) mit einem Anschlag (24) versehen ist, der die Längsbewegung des Dichtrings (16) in Richtung des Drehschiebers (3) begrenzt. 1 . Connecting piece of a thermal management module (1) of an internal combustion engine, which in a receiving bore (9) of a housing (2) of the heat management module (1) can be inserted, wherein a sealing ring (16) of the connecting piece (8) by means of a compression spring element (13) against a Rotary slide (3) is prestressed, characterized in that the connecting piece (8) with a stop (24) is provided which limits the longitudinal movement of the sealing ring (16) in the direction of the rotary valve (3).
2. Anschlussstutzen nach Anspruch 1 , dadurch gekennzeichnet, dass am Anschlussstutzen (8) ein Halteelement fixiert ist, von dem ein den Anschlag (24) bildender Radialvorsprung ausgeht, der einen Abschnitt des Dichtrings (16) hintergreift. 2. Connecting piece according to claim 1, characterized in that on the connecting piece (8) has a holding element is fixed, from which a stop (24) forming radial projection extends, which engages behind a portion of the sealing ring (16).
3. Anschlussstutzen nach Anspruch 2, dadurch gekennzeichnet, dass das Halteelement als Haltebuchse (20) ausgebildet ist, die an einem in axialer Richtung verlaufenden Vorsprung oder in einer Ausnehmung des Anschlussstutzens (8) fixiert ist. 3. Connecting piece according to claim 2, characterized in that the holding element is designed as a retaining bush (20) which is fixed to a projection extending in the axial direction or in a recess of the connecting piece (8).
4. Anschlussstutzen nach Anspruch 2, dadurch gekennzeichnet, dass der Radialvorsprung als zumindest teilweise umlaufender erster Kragen (21 ) ausgebildet ist, der radial nach innen weist. 4. Connecting piece according to claim 2, characterized in that the radial projection as at least partially circumferential first collar (21) is formed, which points radially inward.
5. Anschlussstutzen nach Anspruch 2, dadurch gekennzeichnet, dass der Abschnitt des Dichtrings (16) als radial nach außen weisender zweiter Kragen (23) ausgebildet ist. 5. Connecting piece according to claim 2, characterized in that the portion of the sealing ring (16) is designed as a radially outwardly facing second collar (23).
6. Anschlussstutzen nach Anspruch 3, dadurch gekennzeichnet, dass der An- schlussstutzen (8) einen hohlzylindrischen Stutzenabschnitt (10) mit einem radial nach außen weisenden Flansch (1 1 ) aufweist und dass als Vorsprung von dem Flansch (1 1 ) eine mit radialem Abstand zum Außenmantel des Stutzenabschnitts (10) verlaufende Hülse (19) ausgeht, an der die Haltebuchse (20) befestigt ist. 6. Connecting piece according to claim 3, characterized in that the connection piece (8) has a hollow cylindrical neck portion (10) with a radially outwardly facing flange (1 1) and that as a projection of the flange (1 1) one with radial Distance to the outer shell of the nozzle section (10) extending sleeve (19) goes out, on which the retaining bush (20) is attached.
7. Anschlussstutzen nach Anspruch 6, dadurch gekennzeichnet, dass die Haltebuchse (20) auf der Hülse (19) aufgepresst ist. 7. Connecting piece according to claim 6, characterized in that the retaining bush (20) on the sleeve (19) is pressed.
8. Anschlussstutzen nach Anspruch 6, dadurch gekennzeichnet, dass axial zwischen dem Flansch (1 1 ) und der Haltebuchse (20) ein Radialdichtelement (22) angeordnet ist, das die Hülse (19) umschließt. 8. Connecting piece according to claim 6, characterized in that axially between the flange (1 1) and the retaining bush (20) a radial sealing element (22) is arranged, which surrounds the sleeve (19).
9. Anschlussstutzen nach Anspruch 6, dadurch gekennzeichnet, dass der Dichtring (16) eine zylindrische Ausnehmung hat, in der ein ringförmiger Nutring (18) aufgenommen ist. 9. Connecting piece according to claim 6, characterized in that the sealing ring (16) has a cylindrical recess, in which an annular groove ring (18) is accommodated.
10. Wärmemanagementmodul (1 ) für einen Kühlkreislauf einer Brennkraftmaschi- ne mit einem Gehäuse (2) und einem darin drehbar gelagerten Drehschieber (3), wobei am Gehäuse (2) ein Kühlmittelanschluss (7) mit einem Anschlussstutzen (8) angeordnet ist und wobei mittels des Drehschiebers (3) der Kühlmittelstrom durch den Kühlmittelanschluss (7) steuerbar ist, dadurch gekennzeichnet, dass der Kühlmittelanschluss (7) als Anschlussstutzen (8) nach ei- nem der vorhergehenden Ansprüche ausgebildet ist. 10. thermal management module (1) for a cooling circuit of a Brennkraftmaschi- ne with a housing (2) and a rotatably mounted therein rotary valve (3), wherein the housing (2) a coolant connection (7) with a connecting piece (8) is arranged and by means of the rotary valve (3) the coolant flow through the coolant connection (7) is controllable, characterized in that the coolant connection (7) is designed as a connecting piece (8) according to one of the preceding claims.
EP17707160.2A 2016-02-26 2017-02-03 Nozzle, and heat management module comprising same Withdrawn EP3420255A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016203070.1A DE102016203070B3 (en) 2016-02-26 2016-02-26 Connecting piece and thermal management module with such
PCT/DE2017/100073 WO2017144047A1 (en) 2016-02-26 2017-02-03 Nozzle, and heat management module comprising same

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EP3420255A1 true EP3420255A1 (en) 2019-01-02

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EP17707160.2A Withdrawn EP3420255A1 (en) 2016-02-26 2017-02-03 Nozzle, and heat management module comprising same

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US (1) US10865888B2 (en)
EP (1) EP3420255A1 (en)
KR (1) KR20180119577A (en)
CN (1) CN108700205B (en)
DE (1) DE102016203070B3 (en)
WO (1) WO2017144047A1 (en)

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US10865888B2 (en) 2020-12-15
KR20180119577A (en) 2018-11-02
CN108700205A (en) 2018-10-23
DE102016203070B3 (en) 2017-06-01
US20190085987A1 (en) 2019-03-21
WO2017144047A1 (en) 2017-08-31
CN108700205B (en) 2020-09-11

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