EP1327064B1 - Throttle-valve actuating unit - Google Patents

Throttle-valve actuating unit Download PDF

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Publication number
EP1327064B1
EP1327064B1 EP01982148A EP01982148A EP1327064B1 EP 1327064 B1 EP1327064 B1 EP 1327064B1 EP 01982148 A EP01982148 A EP 01982148A EP 01982148 A EP01982148 A EP 01982148A EP 1327064 B1 EP1327064 B1 EP 1327064B1
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EP
European Patent Office
Prior art keywords
throttle valve
throttle
actuation unit
unit according
housing module
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.)
Expired - Lifetime
Application number
EP01982148A
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German (de)
French (fr)
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EP1327064A1 (en
Inventor
Klaus Borasch
Hans-Joerg Fees
Klaus Kaiser
Uwe Hammer
Stephan Wuensch
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Robert Bosch GmbH
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Robert Bosch GmbH
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Filing date
Publication date
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Publication of EP1327064A1 publication Critical patent/EP1327064A1/en
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Publication of EP1327064B1 publication Critical patent/EP1327064B1/en
Anticipated expiration legal-status Critical
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/107—Manufacturing or mounting details

Definitions

  • the invention is based on a throttle valve adjusting unit of the type defined in the preamble of claim 1.
  • a known throttle actuator unit of this type ( DE 195 25 510 A1 ), also called E-gas actuator, is formed on the throttle body through which an air or fuel-air mixture leading gas channel passes, a drive space is formed, which is closed with a plastic lid and a drive motor, a connecting this with the throttle shaft Reduction gear and a connector for connecting the throttle actuator unit to an electrical control unit contains.
  • the connector is formed on the plastic cover.
  • the throttle actuator unit has with respect to the diameter of the throttle body and the dimensions of the mounting flange on the throttle body and with respect to the formation of the Connector to customer-specific features, so that special production tools must be kept available for each customer, some of which are very expensive and significantly increase the manufacturing costs for the throttle actuator unit.
  • the publication DE 199 03 490 A1 shows an adjusting device for a throttle valve.
  • this actuator having a throttle body and a throttle shaft, an actuator unit is disposed in a lid member. With the lid member, the throttle body is to be closed while attaching a coupling element of the actuator to the throttle shaft.
  • the EP 1 024 268 A2 shows an electric throttle control system with a throttle body, with a housing with an engine, a throttle valve, a throttle shaft and a transmission mechanism.
  • the gear mechanism is located on a front side of the throttle body, at which the throttle shaft the main body of the throttle body protrudes.
  • the gear mechanism is covered by a lid.
  • the throttle valve adjusting unit according to the invention has the advantage that only one housing module is required for each series of the modular system due to their modular structure, to which then the manufacturer can connect the relatively simple throttle body with adapted to the customer specification diameter and flange design.
  • the throttle body itself can be designed so that multiple nozzle diameter can be covered with a single tool.
  • the connector is also attached as a separate part of the housing module and secured thereto.
  • the connector manufacturer prefabricated in different customer specifications covering versions and attached to the housing module in the same position.
  • the connector pins themselves can be connected via a printed circuit board, which is prepared for receiving different connector variants, with the other necessary contact points.
  • a connecting piece with individually adapted Schlauchan gleichgeometrie is used as a separate piece of pipe in the throttle body.
  • the piece of tubing made as a separate piece of plastic or metal can be easily configured in its hose connection geometry to customer specifications and then inserted into the throttle body, e.g. be pressed or glued, be.
  • the throttle body is manufactured as an extruded profile.
  • This has the advantage of significantly lower production costs compared to the previously used die-casting process, as well as the advantage of significantly lower tooling costs.
  • the extruded profile design also opens up the possibility of several Cover throttle body diameter with a single tool.
  • the extruded profile is manufactured as an endless profile with the corresponding clear diameter and the flange dimensions of the throttle body and then separated in the required length of the throttle body. The cut blank is then machined to the desired final shape.
  • a throttle body 11 is mounted on a housing module 12 and fixedly connected thereto.
  • a throttle valve 13 supporting throttle shaft 14 is rotatably mounted.
  • the housing module 12 made of plastic, which encloses a drive space for receiving an electrical drive of the throttle shaft, has a cup-shaped base body 15 and a lid 16 closing the base body 15 and a molded on the base body 15, with this one-piece, hollow cylindrical receiving compartment 17 which at right angles away from the base body 15.
  • a through opening 19 is formed in the main body 15, whose normal or opening axis is aligned parallel to the longitudinal axis of the receiving compartment 17.
  • the throttle shaft 14 via a reduction gear with the projecting also into the interior engine output shaft mechanically coupled to the electric motor, as described in detail in the DE 195 25 510 A1 is shown and described.
  • a sensor not shown here for the feedback of the pivot position of the throttle valve 13 is present, which, however, on the base body 15 (and not on the lid 16) is arranged.
  • Both the terminals of the electric motor and the terminals of the sensor are guided to a plug 20, via which a plug connection to a control unit can be produced.
  • the plug 20 is like the throttle body 11 to the housing module 12, namely to the base body 15, attachable and formed on this fixable.
  • the throttle body 11 and the plug 20 are separate parts prepared for connection to the housing module 12, which are made detached from the housing module 12 and thus easily adapted to customer specifications. Such specifications are different Diameter of the throttle body 11 and different dimensions of the formed on the throttle body 11 mounting flange 111. Also in the connector 20, the pin number and the pin arrangement changes according to customer requirements. These separately manufactured parts are then attached in the desired embodiments by means of the fits 21-23 positionally accurate to the housing module 12 and fixed thereto, for example by dowel pins.
  • the throttle body 11 is produced as an extruded profile.
  • the extruded profile is manufactured as an endless profile, and then blanks are separated from the extruded profile with a length required for the throttle body 11.
  • Such, prefabricated by an extruded section blank 25 is shown in Fig. 3.
  • This blank 25 has already from the extrusion profile essentially the desired inner diameter of the throttle body 11 and the dimensions of the mounting flange 111.
  • This blank 25 is now brought by machining in the desired final shape of the throttle body 11, as can be seen in Fig. 4.
  • the throttle body 11 shown in FIGS. 1 and 2 is manufactured.
  • connection sleeve 24 for attaching a connection hose.
  • This connection sleeve 24 has on its protruding from the throttle body 11 free end a hose connection geometry 241, which in turn must be designed differently for different customers.
  • the connecting sleeve 24 is made as a separate piece of pipe made of plastic or metal and then inserted into the throttle body 11.
  • the separate production of the connecting sleeve 14 also allows here to adapt the hose connection geometry to customer specifications cost.
  • the attachment of the pipe section in the throttle body 11 is done for example by pressing or gluing.
  • the position of the pipe section in the throttle body 11 can be predetermined by an annular stop shoulder 26 integrally formed on the nozzle inner wall (FIGS. 2 and 4).
  • throttle body 11 and port hood 24 may also be integral, e.g. after a corresponding cut to length of the blank 25 from the extruded section, the connecting sleeve 24 is completed by machining.
  • a throttle body 11 and connecting sleeve 24 comprehensive casting of plastic or metal can be produced by casting, which may still have to be reworked.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Lift Valve (AREA)

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einer Drosselklappenstelleinheit der im Oberbegriff des Anspruchs 1 definierten Gattung.The invention is based on a throttle valve adjusting unit of the type defined in the preamble of claim 1.

Bei einer bekannten Drosselklappenstelleinheit dieser Art ( DE 195 25 510 A1 ), auch E-Gas-Steller genannt, ist an dem Drosselklappenstutzen, durch den ein Luft oder Kraftstoff-Luft-Gemisch führender Gaskanal hindurch verläuft, ein Antriebsraum ausgeformt, der mit einem Kunststoffdeckel verschlossen ist und einen Antriebsmotor, ein diesen mit der Drosselklappenwelle verbindendes Reduziergetriebe sowie einen Anschlußstecker zum Anschließen der Drosselklappenstelleinheit an ein elektrisches Steuergerät enthält. Der Anschlußstecker ist dabei am Kunststoffdeckel ausgebildet. Die Drosselklappenstelleinheit weist bezüglich des Durchmessers des Drosselklappenstutzens und der Abmessungen des Befestigungsflansches am Drosselklappenstutzen sowie hinsichtlich der Ausbildung des Anschlussstecker kundenspezifische Merkmale auf, so dass für jeden Kunden spezielle Fertigungswerkzeuge vorgehalten werden müssen, die zum Teil sehr aufwendig sind und erheblich die Herstellkosten für die Drosselklappenstelleinheit steigern.In a known throttle actuator unit of this type ( DE 195 25 510 A1 ), also called E-gas actuator, is formed on the throttle body through which an air or fuel-air mixture leading gas channel passes, a drive space is formed, which is closed with a plastic lid and a drive motor, a connecting this with the throttle shaft Reduction gear and a connector for connecting the throttle actuator unit to an electrical control unit contains. The connector is formed on the plastic cover. The throttle actuator unit has with respect to the diameter of the throttle body and the dimensions of the mounting flange on the throttle body and with respect to the formation of the Connector to customer-specific features, so that special production tools must be kept available for each customer, some of which are very expensive and significantly increase the manufacturing costs for the throttle actuator unit.

Man ist daher bereits zu einem Baukastensystem übergegangen, mit welchem mit einer kleinen und einer großen Baureihe die jeweils mit zwei verschiedenen Anschlusssteckern angeboten werden, gestufte Durchmesservarianten des Drosselklappenstutzens und der Flanschabmessungen angeboten werden und damit das Gros der kundenspezifischen Merkmale abgedeckt wird. Für jeden Typ einer Baureihe ist jedoch ein eigenes Werkzeug erforderlich. Ebenso muss für jede Steckervariante sowohl in der großen als auch in der kleinen Baureihe ein eigenes Werkzeug für den Kunststoffdeckel erstellt werden.It has therefore already been transferred to a modular system, which are offered with a small and a large series each with two different connection plugs, stepped diameter variants of the throttle body and the flange dimensions are offered and thus the bulk of the customer-specific features is covered. However, each type of series requires its own tool. Likewise, a separate tool for the plastic cover must be created for each plug variant both in the large and in the small series.

Die Offenlegungsschrift DE 199 03 490 A1 zeigt eine Stellvorrichtung für eine Drosselklappe. Bei dieser Stellvorrichtung mit einem Drosselklappengehäuse und einer Drosselklappenwelle ist eine Betätigungseinheit in einem Deckelelement angeordnet. Mit dem Deckelelement ist das Drosselklappengehäuse zu verschließen und dabei ein Kupplungselement der Betätigungseinheit auf die Drosselklappenwelle aufzustecken.The publication DE 199 03 490 A1 shows an adjusting device for a throttle valve. In this actuator having a throttle body and a throttle shaft, an actuator unit is disposed in a lid member. With the lid member, the throttle body is to be closed while attaching a coupling element of the actuator to the throttle shaft.

Die EP 1 024 268 A2 zeigt ein elektrisches Drosselsteuersystem mit einem Drosselklappenstutzen, mit einem Gehäuse mit einem Motor, einer Drosselklappe, einer Drosselklappenwelle und einem Getriebemechanismus. Der Getriebemechanismus befindet sich an einer Stirnseite des Drosselklappenstutzens, an der die Drosselklappenwelle aus dem Grundkörper des Drosselklappenstutzens heraussteht. Der Getriebemechanismus wird von einem Deckel abgedeckt.The EP 1 024 268 A2 shows an electric throttle control system with a throttle body, with a housing with an engine, a throttle valve, a throttle shaft and a transmission mechanism. The gear mechanism is located on a front side of the throttle body, at which the throttle shaft the main body of the throttle body protrudes. The gear mechanism is covered by a lid.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße Drosselklappenstelleinheit hat den Vorteil, dass durch ihren modularen Aufbau für jede Baureihe des Baukastens nur ein einziges Gehäusemodul erforderlich ist, an das sich dann herstellerseitig der relativ einfache Drosselklappenstutzen mit an die Kundenvorgabe angepasster Durchmesser- und Flanschausführung anbinden lässt. Der Drosselklappenstutzen selbst kann dadurch so gestaltet werden, dass mehrere Stutzendurchmesser mit einem einzigen Werkzeug abgedeckt werden können.The throttle valve adjusting unit according to the invention has the advantage that only one housing module is required for each series of the modular system due to their modular structure, to which then the manufacturer can connect the relatively simple throttle body with adapted to the customer specification diameter and flange design. The throttle body itself can be designed so that multiple nozzle diameter can be covered with a single tool.

Bei der vorgeschlagenen Drosselklappenstelleinheit ist der Anschlussstecker ebenfalls als separates Teil an das Gehäusemodul angesetzt und an diesem befestigt. Dadurch kann herstellerseitig der Anschlussstecker in verschiedene Kundenvorgaben abdeckenden Ausführungen vorgefertigt und an dem Gehäusemodul in gleicher Position angebracht werden. Die Steckerpins selbst können dabei über eine Leiterplatte, die für die Aufnahme verschiedener Steckervarianten präpariert ist, mit den weiteren notwendigen Kontaktstellen verbunden werden.In the proposed throttle actuator unit, the connector is also attached as a separate part of the housing module and secured thereto. As a result, the connector manufacturer prefabricated in different customer specifications covering versions and attached to the housing module in the same position. The connector pins themselves can be connected via a printed circuit board, which is prepared for receiving different connector variants, with the other necessary contact points.

Durch die in den weiteren Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der im Anspruch 1 angegebenen Drosselklappenstelleinheit möglich.The measures listed in the further claims advantageous refinements and improvements of the claim 1 throttle valve adjustment unit are possible.

Gemäß einer vorteilhaften Ausführungsform der Erfindung ist in den Drosselklappenstutzen eine Anschlussstutze mit individuell angepasster Schlauchanschlussgeometrie als separates Rohrstück eingesetzt. Das als separates Teil aus Kunststoff oder Metall gefertigte Rohrstück kann in seiner Schlauchanschlussgeometrie leicht nach den Kundenwünschen ausgestaltet und dann in den Drosselklappenstutzen eingesetzt, z.B. eingepresst oder eingeklebt, werden.According to an advantageous embodiment of the invention, a connecting piece with individually adapted Schlauchanschlussgeometrie is used as a separate piece of pipe in the throttle body. The piece of tubing made as a separate piece of plastic or metal can be easily configured in its hose connection geometry to customer specifications and then inserted into the throttle body, e.g. be pressed or glued, be.

Gemäß einer bevorzugten Ausführungsform der Erfindung wird der Drosselklappenstutzen als Strangpressprofil hergestellt. Dies hat den Vorteil der wesentlich geringeren Herstellungskosten gegenüber dem bisher angewandten Druckgussverfahren, sowie den Vorteil der wesentlich geringeren Werkzeugkosten. Die Strangprofilausführung eröffnet insbesondere auch die Möglichkeit, mehrere Drosselklappendurchmesser über ein einziges Werkzeug abzudecken. Das Strangpreßprofil wird als Endlosprofil mit dem entsprechenden lichten Durchmesser und den Flanschabmessungen des Drosselklappenstutzens gefertigt und dann in der erforderlichen Länge des Drosselklappenstutzens abgetrennt. Der abgelängte Rohling wird dann spanend zu der gewünschten Endform bearbeitet.According to a preferred embodiment of the invention, the throttle body is manufactured as an extruded profile. This has the advantage of significantly lower production costs compared to the previously used die-casting process, as well as the advantage of significantly lower tooling costs. The extruded profile design also opens up the possibility of several Cover throttle body diameter with a single tool. The extruded profile is manufactured as an endless profile with the corresponding clear diameter and the flange dimensions of the throttle body and then separated in the required length of the throttle body. The cut blank is then machined to the desired final shape.

Zeichnungdrawing

Die Erfindung ist anhand eines in der Zeichnung dargestellten Ausführungsbeispiels in der nachfolgenden Beschreibung näher erläutert. Es zeigen:

Fig. 1
eine perspektivische Darstellung einer Drosselklappenstelleinheit,
Fig. 2
eine perspektivische Darstellung der Drosselklappenstelleinheit in Fig. 1 mit vom Gehäusemodul abgezogenem Drosselklappenstutzen,
Fig. 3
eine perspektivische Darstellung eines von einem Strangpreßprofil abgelängten Rohlings für einen modifizierten Drosselklappenstutzen,
Fig. 4
eine perspektivische Darstellung des Drosselklappenstutzens nach Bearbeitung des Rohlings in Fig. 3.
The invention is explained in more detail in the following description with reference to an embodiment shown in the drawing. Show it:
Fig. 1
a perspective view of a throttle actuator unit,
Fig. 2
1 is a perspective view of the throttle valve adjusting unit in FIG. 1 with the throttle body removed from the housing module;
Fig. 3
3 is a perspective view of a blank for a modified throttle body cut to length from an extruded profile;
Fig. 4
a perspective view of the throttle body after machining of the blank in Fig. 3rd

Beschreibung des AusführungsbeispielsDescription of the embodiment

Bei der in Fig. 1 im Zusammenbau und in Fig. 2 in Einzelteilen jeweils perspektivisch skizzierten Drosselklappenstelleinheit für eine Brennkraftmaschine ist ein Drosselklappenstutzen 11 auf ein Gehäusemodul 12 aufgesetzt und mit diesem fest verbunden. Im Drosselklappenstutzen 11 ist eine eine Drosselklappe 13 tragende Drosselklappenwelle 14 drehbar gelagert. Das aus Kunststoff hergestellte Gehäusemodul 12, das einen Antriebsraum für die Aufnahme eines elektrischen Antriebs der Drosselklappenwelle umschließt, weist einen schalenförmigen Grundkörper 15 und einen den Grundkörper 15 verschließenden Deckel 16 sowie ein am Grundkörper 15 angeformtes, mit diesem einstückiges, hohlzylindrisches Aufnahmefach 17 auf, das rechtwinklig vom Grundkörper 15 abstrebt. Im Aufnahmefach 17 ist der Elektromotor des Antriebs aufgenommen, wobei das eine Ende der Motorabtriebswelle in einer Lagerschale 18 drehend gelagert ist, die das vom Grundkörper 15 abgekehrte Ende des Aufnahmefachs 17 abschließt. Im Abstand von dem Aufnahmefach 17 ist im Grundkörper 15 eine Durchgangsöffnung 19 eingeformt, deren Normale oder Öffnungsachse parallel zur Längsachse des Aufnahmefachs 17 ausgerichtet ist. Beim Ansetzten des mit Drosselklappe 13 und Drosselklappenwelle 14 versehenen Drosselklappenstutzens 11 an das Gehäusemodul 12 tritt die Drosselklappenwelle 14 mit einem Wellenende durch die Durchgangsöffnung 19 in einen vom Grundkörper 15 umschlossenen Innenraum ein. Innerhalb dieses Innenraums ist die Drosselklappenwelle 14 über ein Reduziergetriebe mit der ebenfalls in den Innenraum hineinragenden Motorabtriebswelle des Elektromotors mechanisch gekoppelt, wie dies im einzelnen in der DE 195 25 510 A1 dargestellt und beschrieben ist. Wie dort ist auch hier im Innenraum noch ein hier nicht gezeigter Sensor zur Rückmeldung der Schwenkposition der Drosselklappe 13 vorhanden, der allerdings am Grundkörper 15 (und nicht am Deckel 16) angeordnet ist. Sowohl die Anschlüsse des Elektromotors als auch die Anschlüsse des Sensors sind zu einem Stecker 20 geführt, über den eine Steckverbindung zu einem Steuergerät herstellbar ist. Der Stecker 20 ist wie der Drosselklappenstutzen 11 an das Gehäusemodul 12, und zwar an den Grundkörper 15, ansetzbar und an diesem festlegbar ausgebildet. Zum positionsrichtigen Ansetzen des Drosselklappenstutzens 11 und des Steckers 20 an das Gehäusemodul 12 sind sowohl am Grundkörper 15 einerseits als auch an Drosselklappenstutzen 11 und Stecker 20 andererseits Passungen ausgeformt, die beim Fügen ineinandergreifen und die toleranzgenaue Lage des Drosselklappenstutzens 11 und des Steckers 20 am Gehäusemodul 12 gewährleisten. Passungspaare zwischen Grundkörper 15 Drosselklappenstutzen 11 sind in Fig. 2 mit 21, 21' und 22, 22' bezeichnet. Ein Passungspaar zwischen Grundkörper 15 und Stecker 20 ist mit 23, 23' bezeichnet.When in Fig. 1 in the assembly and in Fig. 2 in each case in perspective outlined throttle flap adjusting unit for an internal combustion engine, a throttle body 11 is mounted on a housing module 12 and fixedly connected thereto. In the throttle body 11, a throttle valve 13 supporting throttle shaft 14 is rotatably mounted. The housing module 12 made of plastic, which encloses a drive space for receiving an electrical drive of the throttle shaft, has a cup-shaped base body 15 and a lid 16 closing the base body 15 and a molded on the base body 15, with this one-piece, hollow cylindrical receiving compartment 17 which at right angles away from the base body 15. In the receiving compartment 17 of the electric motor of the drive is received, wherein one end of the engine output shaft is rotatably mounted in a bearing shell 18 which closes the end facing away from the base 15 end of the receiving compartment 17. At a distance from the receiving compartment 17, a through opening 19 is formed in the main body 15, whose normal or opening axis is aligned parallel to the longitudinal axis of the receiving compartment 17. When attaching the provided with throttle 13 and throttle shaft 14 throttle body 11 to the housing module 12 enters the throttle shaft 14 with a shaft end through the passage opening 19 in a space enclosed by the base 15 interior. Within this interior, the throttle shaft 14 via a reduction gear with the projecting also into the interior engine output shaft mechanically coupled to the electric motor, as described in detail in the DE 195 25 510 A1 is shown and described. As there is here also in the interior of a sensor not shown here for the feedback of the pivot position of the throttle valve 13 is present, which, however, on the base body 15 (and not on the lid 16) is arranged. Both the terminals of the electric motor and the terminals of the sensor are guided to a plug 20, via which a plug connection to a control unit can be produced. The plug 20 is like the throttle body 11 to the housing module 12, namely to the base body 15, attachable and formed on this fixable. For positionally correct attachment of the throttle body 11 and the plug 20 to the housing module 12 are on both the body 15 on the one hand and to throttle body 11 and connector 20 fits formed on the other hand, which mesh during joining and the exact tolerance position of the throttle body 11 and the plug 20 on the housing module 12th guarantee. Passungspaare between body 15 throttle body 11 are shown in Fig. 2 with 21, 21 'and 22, 22' respectively. A pair of fits between base body 15 and plug 20 is denoted by 23, 23 '.

Um bei niedrigen Herstellkosten eine große Vielfalt von an Kundenwünsche angepaßten Ausführungen der Drosselklappenstelleinheit anbieten zu können, sind - wie beschrieben - der Drosselklappenstutzen 11 und der Stecker 20 separate, zur Verbindung mit dem Gehäusemodul 12 vorbereitete Teile, die losgelöst vom Gehäusemodul 12 hergestellt werden und somit leicht an die kundenspezifischen Vorgaben angepaßt werden können. Solche Vorgaben sind unterschiedliche Durchmesser des Drosselklappenstutzens 11 sowie unterschiedliche Abmessungen des am Drosselklappenstutzen 11 ausgebildeten Befestigungsflansches 111. Auch im Stecker 20 ändert sich die Pinzahl und die Pinanordnung nach Kundenwünschen. Diese separat gefertigten Teile werden dann in den gewünschten Ausführungen mittels der Passungen 21- 23 positionsgenau an das Gehäusemodul 12 angesetzt und an diesem, z.B. durch Spannstifte, festgelegt.In order to be able to offer a wide variety of customer-specific versions of the throttle valve adjustment unit at low production costs, the throttle body 11 and the plug 20 are separate parts prepared for connection to the housing module 12, which are made detached from the housing module 12 and thus easily adapted to customer specifications. Such specifications are different Diameter of the throttle body 11 and different dimensions of the formed on the throttle body 11 mounting flange 111. Also in the connector 20, the pin number and the pin arrangement changes according to customer requirements. These separately manufactured parts are then attached in the desired embodiments by means of the fits 21-23 positionally accurate to the housing module 12 and fixed thereto, for example by dowel pins.

Um weitere Kostenvorteile bei der Herstellung der Drosselklappenstelleinheit zu erzielen, ist der Drosselklappenstutzen 11 als Strangpreßprofil hergestellt. Dabei wird das Strangpreßprofil als Endlosprofil gefertigt, und dann werden vom Strangpreßprofil Rohlinge mit einer für den Drosselklappenstutzen 11 erforderlichen Länge abgetrennt. Ein solcher, von einem Strangpreßprofil abgelängter Rohling 25 ist in Fig. 3 dargestellt. Dieser Rohling 25 hat bereits vom Strangpreßprofil her im wesentlichen den gewünschten Innendurchmesser des Drosselklappenstutzens 11 sowie die Maße des Befestigungsflansches 111. Dieser Rohling 25 wird nun durch spanende Bearbeitung in die gewünschte Endform des Drosselklappenstutzens 11 gebracht, wie sie in Fig. 4 zu sehen ist. Auf die gleiche Weise wird auch der in Fig. 1 und 2 dargestellte Drosselklappenstutzen 11 gefertigt.In order to achieve further cost advantages in the manufacture of the throttle valve adjusting unit, the throttle body 11 is produced as an extruded profile. In this case, the extruded profile is manufactured as an endless profile, and then blanks are separated from the extruded profile with a length required for the throttle body 11. Such, prefabricated by an extruded section blank 25 is shown in Fig. 3. This blank 25 has already from the extrusion profile essentially the desired inner diameter of the throttle body 11 and the dimensions of the mounting flange 111. This blank 25 is now brought by machining in the desired final shape of the throttle body 11, as can be seen in Fig. 4. In the same way, the throttle body 11 shown in FIGS. 1 and 2 is manufactured.

Nach Komplettierung des Drosselklappenstutzens 11 mit Drosselklappe 13 und Drosselklappenwelle 14 wird der Drosselklappenstutzen 11 noch mit einer Anschlußhutze 24 zum Aufstecken eines Anschlußschlauchs versehen. Diese Anschlußhutze 24 hat auf ihrem aus dem Drosselklappenstutzen 11 herausragenden freien Ende eine Schlauchanschlußgeometrie 241, die wiederum für verschiedene Kunden unterschiedlich gestaltet sein muß. Um den Kundenwünschen im Rahmen einer Fertigungskostensenkung gerecht zu werden, ist die Anschlußhutze 24 als separates Rohrstück aus Kunststoff oder Metall gefertigt und dann in den Drosselklappenstutzen 11 eingesetzt. Die separate Fertigung der Anschlußhutze 14 erlaubt auch hier, die Schlauchanschlußgeometrie an Kundenvorgaben kostengünstig anzupassen. Die Befestigung des Rohrstücks im Drosselklappenstutzen 11 erfolgt z.B. durch Einpressen oder Einkleben. Die Position des Rohrstücks im Drosselklappenstutzen 11 kann durch eine an der Stutzeninnenwand angeformte, ringförmige Anschlagschulter 26 vorgegeben werden (Fig. 2 und 4).After completion of the throttle body 11 with throttle 13 and throttle shaft 14 of the throttle body 11 is still provided with a connection sleeve 24 for attaching a connection hose. This connection sleeve 24 has on its protruding from the throttle body 11 free end a hose connection geometry 241, which in turn must be designed differently for different customers. In order to meet the customer's wishes within the scope of a production cost reduction, the connecting sleeve 24 is made as a separate piece of pipe made of plastic or metal and then inserted into the throttle body 11. The separate production of the connecting sleeve 14 also allows here to adapt the hose connection geometry to customer specifications cost. The attachment of the pipe section in the throttle body 11 is done for example by pressing or gluing. The position of the pipe section in the throttle body 11 can be predetermined by an annular stop shoulder 26 integrally formed on the nozzle inner wall (FIGS. 2 and 4).

Die Erfindung ist nicht auf das vorstehend beschriebene Ausführungsbeispiel beschränkt. So können Drosselklappenstutzen 11 und Anschlußhutze 24 auch einteilig sein, indem z.B. nach entsprechender Ablängung des Rohlings 25 vom Strangpreßprofil die Anschlußhutze 24 durch zerspanende Bearbeitung fertiggestellt wird. Alternativ kann bei Verzicht auf die Vorteile der Strangpreßprofilfertigung auch ein Drosselklappenstutzen 11 und Anschlußhutze 24 umfassender Gußkörper aus Kunststoff oder Metall gießtechnisch hergestellt werden, der ggf. noch nachbearbeitet werden muß.The invention is not limited to the embodiment described above. Thus, throttle body 11 and port hood 24 may also be integral, e.g. after a corresponding cut to length of the blank 25 from the extruded section, the connecting sleeve 24 is completed by machining. Alternatively, in dispensing with the advantages of the extruded profile production and a throttle body 11 and connecting sleeve 24 comprehensive casting of plastic or metal can be produced by casting, which may still have to be reworked.

Claims (9)

  1. Throttle valve actuation unit, with a throttle valve assembly (11) in which a throttle valve shaft (14) carrying a throttle valve (13) is mounted rotatably, and with a drive space for the reception of an electric drive for the throttle valve shaft (14) and of an electric connecting plug (20) for a plug connection to a control apparatus, the drive space being surrounded by a housing module (12) to which the throttle valve assembly (11) is attached and fastened as a separate part, characterized in that the connecting plug (20) is attached and fastened as a separate part to the housing module (12).
  2. Throttle valve actuation unit according to Claim 1, characterized in that fits (21, 21', 22, 22', 23, 23') insertable one into the other are shaped out on the housing module (12), on the one hand, and on the throttle valve assembly (11) or on the connecting plug (20), on the other hand.
  3. Throttle valve actuation unit according to one of Claims 1 or 2, characterized in that the housing module (12) has a shell-shaped basic body (15) and a cover (16) closing the latter, and the throttle valve assembly (11) or the connecting plug (20) is attached to the basic body (15).
  4. Throttle valve actuation unit according to Claim 3, characterized in that the basic body (15) has formed on it, for an electric servomotor, a preferably hollow-cylindrical reception compartment (17) which is in one piece with the said basic body and which preferably projects at right angles from the basic body (15).
  5. Throttle valve actuation unit according to Claim 4, characterized in that the basic body (15) has integrally formed in it a through-orifice (19), the normal of which is oriented parallel to the longitudinal axis of the reception compartment (17).
  6. Throttle valve actuation unit according to one of Claims 1 to 5, characterized in that the housing module (12) is manufactured from plastic.
  7. Throttle valve actuation unit according to one of Claims 1 to 6, characterized in that the throttle valve assembly (11) is produced as an extruded profile.
  8. Throttle valve actuation unit according to Claim 7, characterized in that a connection piece (24) with a hose connection geometry (241) is inserted as a separate tubular piece in the throttle valve assembly (11).
  9. Throttle valve actuation unit according to Claim 8, characterized in that the tubular piece is manufactured from plastic or metal and is fastened to the throttle valve assembly (11), in particular pressed or glued into the latter, or is fastened to it by means of welding, soldering, screwing or the like.
EP01982148A 2000-10-04 2001-09-26 Throttle-valve actuating unit Expired - Lifetime EP1327064B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10048937A DE10048937A1 (en) 2000-10-04 2000-10-04 Throttle actuator
DE10048937 2000-10-04
PCT/DE2001/003696 WO2002029226A1 (en) 2000-10-04 2001-09-26 Throttle-valve actuating unit

Publications (2)

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EP1327064A1 EP1327064A1 (en) 2003-07-16
EP1327064B1 true EP1327064B1 (en) 2007-11-28

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EP01982148A Expired - Lifetime EP1327064B1 (en) 2000-10-04 2001-09-26 Throttle-valve actuating unit

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US (1) US6886806B2 (en)
EP (1) EP1327064B1 (en)
JP (1) JP2004510911A (en)
AU (1) AU782698B2 (en)
DE (2) DE10048937A1 (en)
WO (1) WO2002029226A1 (en)

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Also Published As

Publication number Publication date
US20030089870A1 (en) 2003-05-15
US6886806B2 (en) 2005-05-03
AU1381502A (en) 2002-04-15
EP1327064A1 (en) 2003-07-16
JP2004510911A (en) 2004-04-08
AU782698B2 (en) 2005-08-18
WO2002029226A1 (en) 2002-04-11
DE10048937A1 (en) 2002-04-11
DE50113330D1 (en) 2008-01-10

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