EP2568147A1 - Choke valve device for an internal combustion engine - Google Patents

Choke valve device for an internal combustion engine Download PDF

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Publication number
EP2568147A1
EP2568147A1 EP12177784A EP12177784A EP2568147A1 EP 2568147 A1 EP2568147 A1 EP 2568147A1 EP 12177784 A EP12177784 A EP 12177784A EP 12177784 A EP12177784 A EP 12177784A EP 2568147 A1 EP2568147 A1 EP 2568147A1
Authority
EP
European Patent Office
Prior art keywords
valve device
throttle valve
housing
flap
worm gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12177784A
Other languages
German (de)
French (fr)
Other versions
EP2568147B1 (en
Inventor
Marc Anton Münich
Ringo Uhlendorf
Peter Nitsch
Michael Glässer
Ralf Muhl
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Pierburg GmbH
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Pierburg GmbH
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Publication of EP2568147A1 publication Critical patent/EP2568147A1/en
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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
    • 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
    • F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like
    • 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
    • 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
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0203—Mechanical governor
    • 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
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0213—Electronic or electric governor
    • 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
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0261—Arrangements; Control features; Details thereof having a specially shaped transmission member, e.g. a cam, specially toothed gears, with a clutch
    • 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
    • F02D9/1035—Details of the valve housing
    • F02D9/105—Details of the valve housing having a throttle position sensor
    • 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
    • F02D9/1075—Materials, e.g. composites
    • F02D9/108—Plastics

Definitions

  • the invention relates to a throttle valve device for an internal combustion engine in a hybrid drive train of a motor vehicle, in particular for a range extender, with a housing, in the interior of which a fluid channel is formed, with a flap body, which determines the flow-through cross section of the channel, with a flap shaft, on which the flap body is arranged and which is rotatably mounted in the housing at at least one bearing point, with an actuating unit which drives the flap shaft.
  • Throttle valve devices for an internal combustion engine are well known.
  • the throttle has the goal to control the amount of air for the internal combustion engine to regulate together with a fuel quantity to be controlled the required output power. So is in particular from the DE 101 14 994 A1 a throttle device known, which can be produced in a particularly cost-effective manner by injection molding.
  • Object of the present invention is therefore to provide a throttle valve device which is particularly suitable for a hybrid powertrain of a motor vehicle and in particular for a serial range extender.
  • the actuator provides a limited number of parking positions for the valve body.
  • a throttle valve device is provided, the adjusting device only has to ensure that the throttle valve between a limited number of parking positions is adjustable.
  • three predefined setting positions can be selected here: 1. Load point 25kW, 2. Load point 15kW and 3. Load point 10kW.
  • An expensive position control can be omitted hereby.
  • an electric motor of the actuator is much easier to perform.
  • the actuating unit has a latching device with latching positions. As a result, the actuator can be made even easier and cheaper.
  • the actuator on an electric motor and a transmission, wherein a transmission output is rotatably connected to the valve shaft.
  • the transmission may be formed as a worm gear, wherein a worm gear of the worm gear is rotatably connected to the valve shaft. It has proved to be particularly advantageous if the setting unit, and in this case, for example, the worm gear, has latching elements which, in cooperation with a spring element, make it possible to engage in the desired latching positions.
  • the housing has the fluid channel and a base housing part for the actuating unit, which can be closed by a cover part. This eliminates the costly assembly and alignment of the base housing part of the actuator on the throttle body.
  • a housing may advantageously be made of plastic.
  • the setting unit can have a contactless sensor device.
  • Fig. 1 shows a perspective view of a throttle device according to the invention 2.
  • This throttle device 2 is used in an internal combustion engine in a hybrid powertrain of a motor vehicle.
  • the internal combustion engine and the hybrid powertrain are not shown.
  • currently known throttle devices are oversized.
  • the throttle valve device 2 has a housing 4, which is made of plastic, and which forms both a fluid channel 6, and a base housing part 8 for an actuating unit 10.
  • flange members 12 are provided for connection to internal combustion engine specific additional components. Also bearing points are already 14 (see also Fig.
  • the base housing part 8 of the setting unit 10 can be closed by a cover part 20, which also has a plug 22 for electrical contacting of the setting unit 10.
  • the pointing away from the actuator bearing 14 is covered by a ceiling element 24.
  • Fig. 2 now shows a sectional view of the throttle valve device 2 of the invention Fig. 1 ,
  • the housing 4 and the flap body 18 with the flap shaft 16 are manufactured in a favorable manner in the assembly spraying process.
  • slide bearings 26 can be used for the storage of the valve shaft 16 in a known manner.
  • the flap shaft 16 and thus the flap body 18 are rotatably connected via a screw 28 with a worm gear 30 of a worm gear 32.
  • the worm gear 32 further has a drive worm 34.
  • the setting unit 10 also has a non-contact sensor device 40, which is shown here only schematically.
  • a magnet 42 is inserted, which cooperates with a field direction-sensitive sensor 44 which is arranged on a circuit board 38.
  • the board 38 is connected via a punch comb not shown with the plug 22.
  • the drive screw 34 is rotatably connected to a drive shaft 46 of an electric motor 48.
  • the worm gear 30 has here over the entire circumference arranged toothing on. However, it can also be designed as a partial gear.
  • the worm wheel in the present embodiment also has a peripheral surface 46 which is provided with latching members 48, 50, 52.
  • latching device 56 By means of such a latching device 56, the power supply of the electric motor can be substantially reduced, if not switched off, when the latching position has been reached.
  • Each latching member 48, 50, 52 defines for this purpose a latching position, which in turn causes a certain position of the flap 18.
  • three latching members 48, 50, 52 are provided, which here correspond to a 1st load point 25kW, 2nd load point 15kW and 3rd load point 10kW of the flap body 18 in the fluid channel.
  • the spring member 54 has in the present embodiment, a hemispherical projection 56 which engages with a spring force of the spring member 54 in the respective latching member 48, 50, 52.
  • the latching positions are not limited to the open, closed, idle position of the cap body 18.
  • a rage extender and locking positions can be selected, which may correspond, for example, a third, a two-thirds and a fully open fluid channel. Consequently, the latching organs are of course not on the in Fig. 4 Restricted positions on the circumference 46 limited.

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

Abstract

The butterfly valve device (2) has housing (4) whose interior is formed with a through-flow fluid channel (6). The cross-section of the through-flow fluid channel through a flap portion is determined. The flap portion is located on a flap shaft and is supported and rotated in the housing at a bearing point. A position unit (10) is provided for driving the flap shaft and for providing a limited number of positions for the flap portion.

Description

Die Erfindung betrifft eine Drosselklappenvorrichtung für einen Verbrennungsmotor in einem Hybridantriebsstrang eines Kraftfahrzeuges, insbesondere für einen Range-Extender, mit einem Gehäuse, in dessen Inneren ein durchströmter Fluidkanal ausgebildet ist, mit einem Klappenkörper, der den durchströmbaren Querschnitt des Kanals bestimmt, mit einer Klappenwelle, auf der der Klappenkörper angeordnet ist und die drehbar im Gehäuse an mindestens einer Lagerstelle gelagert ist, mit einer Stelleinheit, die die Klappenwelle antreibt.The invention relates to a throttle valve device for an internal combustion engine in a hybrid drive train of a motor vehicle, in particular for a range extender, with a housing, in the interior of which a fluid channel is formed, with a flap body, which determines the flow-through cross section of the channel, with a flap shaft, on which the flap body is arranged and which is rotatably mounted in the housing at at least one bearing point, with an actuating unit which drives the flap shaft.

Drosselklappenvorrichtungen für einen Verbrennungsmotor sind hinlänglich bekannt. Hierbei hat die Drosselklappe das Ziel, die Luftmenge für den Verbrennungsmotor zu steuern, um gemeinsam mit einer zu steuernden Treibstoffmenge die geforderte Abgabeleistung zu regulieren. So ist insbesondere aus der DE 101 14 994 A1 eine Drosselklappenvorrichtung bekannt, die auf besonders kostengünstige Weise im Spritzgussverfahren herstellbar ist.Throttle valve devices for an internal combustion engine are well known. Here, the throttle has the goal to control the amount of air for the internal combustion engine to regulate together with a fuel quantity to be controlled the required output power. So is in particular from the DE 101 14 994 A1 a throttle device known, which can be produced in a particularly cost-effective manner by injection molding.

In den vergangenen Jahren haben Hybridfahrzeuge immer mehr Beachtung gefunden. Standen zunächst Kohlenwasserstoffe als Primärenergie (und damit der Verbrennungsmotor) im Vordergrund, so gewinnt in der jüngeren Vergangenheit die Verwendung von elektrischer Energie als Primärenergie einen immer größeren Stellenwert, wobei ein kleiner einfach ausgelegter Verbrennungsmotor lediglich noch als Reichweitenverlängerer, Range-Extender, eingesetzt wird. Insbesondere vor dem Hintergrund des Einsatzes von zwei Motorenkonzepten in ein Kraftfahrzeug ist die Bauraum- und Kostenoptimierung sehr wichtig. Bestehende Drosselklappenvorrichtungen sind für einen derartigen Verbrennungsmotor überdimensioniert.In recent years, hybrid vehicles have gained more and more attention. Initially hydrocarbons as primary energy (and thus the internal combustion engine) in the foreground, so in the recent past, the use of electrical energy as a primary energy is gaining in importance, with a small simply designed internal combustion engine is only used as Range Extender, Range Extender. Especially against the background of the use of two engine concepts in one Motor vehicle, the space and cost optimization is very important. Existing throttle devices are oversized for such an internal combustion engine.

Aufgabe der vorliegenden Erfindung ist es daher, eine Drosselklappenvorrichtung zu schaffen, die insbesondere geeignet ist für einen Hybridantriebsstrang eines Kraftfahrzeuges und dabei insbesondere für einen seriellen Range-Extonder.Object of the present invention is therefore to provide a throttle valve device which is particularly suitable for a hybrid powertrain of a motor vehicle and in particular for a serial range extender.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Stelleinheit eine begrenzte Anzahl von Stellpositionen für den Klappenkörper vorsieht. Auf diese Weise wird eine Drosselklappenvorrichtung geschaffen, deren Stelleinrichtung lediglich sicherstellen muss, dass die Drosselklappe zwischen einer begrenzten Anzahl von Stellpositionen verstellbar ist. Beispielsweise können hier drei vordefinierte Stellpositionen gewählt werden: 1. Lastpunkt 25kW, 2. Lastpunkt 15kW und 3. Lastpunkt 10kW. Eine aufwendige Positionsregelung kann hierdurch entfallen. Auch ist ein Elektromotor der Stelleinheit wesentlich einfacher auszuführen. Besonders vorteilhaft ist eine Ausführungsform, bei der die Stelleinheit eine Einrastvorrichtung mit Einrastpositionen aufweist. Hierdurch kann die Stelleinheit noch einfacher und günstiger ausgeführt werden. Vorteilhafterweise weist die Stelleinheit einen Elektromotor und ein Getriebe auf, wobei ein Getriebeausgang drehfest mit der Klappenwelle verbunden ist. Hierbei kann das Getriebe als Schneckengetriebe ausgebildet sein, wobei ein Schneckenzahnrad des Schneckengetriebes drehfest mit der Klappenwelle verbunden ist. Als besonders vorteilhaft hat es sich erwiesen, wenn die Stelleinheit, und hierbei beispielsweise das Schneckenzahnrad, Einrastorgane aufweist, die im Zusammenwirken mit einem Federorgan ein Einrasten in die gewünschten Einrastpositionen ermöglichen.This object is achieved in that the actuator provides a limited number of parking positions for the valve body. In this way, a throttle valve device is provided, the adjusting device only has to ensure that the throttle valve between a limited number of parking positions is adjustable. For example, three predefined setting positions can be selected here: 1. Load point 25kW, 2. Load point 15kW and 3. Load point 10kW. An expensive position control can be omitted hereby. Also, an electric motor of the actuator is much easier to perform. Particularly advantageous is an embodiment in which the actuating unit has a latching device with latching positions. As a result, the actuator can be made even easier and cheaper. Advantageously, the actuator on an electric motor and a transmission, wherein a transmission output is rotatably connected to the valve shaft. Here, the transmission may be formed as a worm gear, wherein a worm gear of the worm gear is rotatably connected to the valve shaft. It has proved to be particularly advantageous if the setting unit, and in this case, for example, the worm gear, has latching elements which, in cooperation with a spring element, make it possible to engage in the desired latching positions.

Aus montagetechnischer Sicht ist es sinnvoll, wenn das Gehäuse den Fluidkanal und ein Basisgehäuseteil für die Stelleinheit, das durch ein Deckelteil verschließbar ist, aufweist. Hierdurch entfällt die aufwendige Montage und Ausrichtung des Basisgehäuseteils der Stelleinheit am Drosselklappengehäuse. Ein derartiges Gehäuse kann vorteilhafterweise aus Kunststoff hergestellt sein.From a technical point of view, it makes sense if the housing has the fluid channel and a base housing part for the actuating unit, which can be closed by a cover part. This eliminates the costly assembly and alignment of the base housing part of the actuator on the throttle body. Such a housing may advantageously be made of plastic.

Um die Position des Klappenkörpers auf einfache Weise detektieren zu können, kann die Stelleinheit eine berührungslose Sensorvorrichtung aufweisen.In order to be able to detect the position of the flap body in a simple manner, the setting unit can have a contactless sensor device.

Nachfolgend wird die Erfindung anhand der Zeichnungen näher erläutert. Hierbei zeigt:

  • Fig. 1 eine perspektivische Ansicht einer erfindungsgemäßen Drosselklappenvorrichtung,
  • Fig. 2 eine erste Schnittdarstellung durch das Gehäuse der Drosselklappenvorrichtung aus Fig. 1,
  • Fig. 3 eine zweite Schnittdarstellung durch die Stelleinheit mit einem Schneckenradgetriebe und
  • Fig. 4 eine dritte Schnittdarstellung durch die Stelleinheit, die die Einrastorgane und das Federorgan zeigt.
The invention will be explained in more detail with reference to the drawings. Hereby shows:
  • Fig. 1 a perspective view of a throttle device according to the invention,
  • Fig. 2 a first sectional view through the housing of the throttle device Fig. 1 .
  • Fig. 3 a second sectional view through the actuator with a worm gear and
  • Fig. 4 a third sectional view through the actuator, which shows the latch members and the spring member.

Fig. 1 zeigt in perspektivischer Ansicht eine erfindungsgemäße Drosselklappenvorrichtung 2. Diese Drosselklappenvorrichtung 2 ist in einem Verbrennungsmotor in einem Hybridantriebsstrang eines Kraftfahrzeuges eingesetzt. Der Verbrennungsmotor und der Hybridantriebsstrang sind nicht dargestellt. Insbesondere wenn der Verbrennungsmotor als serieller Range-Extender ausgeführt ist, sind derzeit bekannte Drosselklappenvorrichtungen überdimensioniert. Hier bietet der einfache und kostengünstige Aufbau der erfindungsgemäßen Drosselklappenvorrichtung 2 Vorteile. Die Drosselklappenvorrichtung 2 weist ein Gehäuse 4 auf, das aus Kunststoff hergestellt ist, und das sowohl einen Fluidkanal 6, als auch ein Basisgehäuseteil 8 für eine Stelleinheit 10 ausbildet. Desweiteren sind in diesem Ausführungsbeispiel Flanschorgane 12 zum Anschluss an verbrennungsmotorspezifische weitere Bauteile vorgesehen. Auch sind bereits Lagerstellen 14 (siehe hierzu auch Fig. 2) für die Lagerung einer Klappenwelle 16, auf der ein Klappenkörper 18 angeordnet ist, vorgesehen. Das Basisgehäuseteil 8 der Stelleinheit 10 ist durch ein Deckelteil 20 verschließbar, das zudem einen Stecker 22 zur elektrischen Kontaktierung der Stelleinheit 10 aufweist. Die von der Stelleinheit wegweisende Lagerstelle 14 ist durch ein Deckeielement 24 abgedeckt. Fig. 1 shows a perspective view of a throttle device according to the invention 2. This throttle device 2 is used in an internal combustion engine in a hybrid powertrain of a motor vehicle. The internal combustion engine and the hybrid powertrain are not shown. In particular, when the internal combustion engine is designed as a serial range extender, currently known throttle devices are oversized. Here, the simple and inexpensive construction of the throttle valve device 2 according to the invention offers advantages. The throttle valve device 2 has a housing 4, which is made of plastic, and which forms both a fluid channel 6, and a base housing part 8 for an actuating unit 10. Furthermore, in this embodiment flange members 12 are provided for connection to internal combustion engine specific additional components. Also bearing points are already 14 (see also Fig. 2 ) for the storage of a flap shaft 16, on which a flap body 18 is arranged, is provided. The base housing part 8 of the setting unit 10 can be closed by a cover part 20, which also has a plug 22 for electrical contacting of the setting unit 10. The pointing away from the actuator bearing 14 is covered by a ceiling element 24.

Fig. 2 zeigt nun eine Schnittdarstellung der erfindungsgemäßen Drosselklappenvorrichtung 2 aus Fig. 1. Das Gehäuse 4 sowie der Klappenkörper 18 mit der Klappenwelle 16 sind auf günstige Weise im Montagespritzverfahren hergestellt. In den Lagerstellen 14 können auf bekannte Weise Gleitlager 26 für die Lagerung der Klappenwelle 16 eingesetzt werden. Die Klappenwelle 16 und damit der Klappenkörper 18 sind über eine Schraubverbindung 28 drehfest mit einem Schneckenzahnrad 30 eines Schneckengetriebes 32 verbunden. Das Schneckengetriebe 32 weist desweiteren eine Antriebsschnecke 34 auf. Desweiteren weist die Stelleinheit 10 noch eine berührungslose Sensorvorrichtung 40 auf, die hier lediglich schematisch dargestellt ist. Hierzu ist in dem Schneckenrad 30 ein Magnet 42 eingelegt, der mit einem feldrichtungssensitiven Sensor 44, der auf einer Platine 38 angeordnet ist, zusammenwirkt. Die Platine 38 ist über einen nicht weiter dargestellten Stanzkamm mit dem Stecker 22 verbunden. Fig. 2 now shows a sectional view of the throttle valve device 2 of the invention Fig. 1 , The housing 4 and the flap body 18 with the flap shaft 16 are manufactured in a favorable manner in the assembly spraying process. In the bearings 14 slide bearings 26 can be used for the storage of the valve shaft 16 in a known manner. The flap shaft 16 and thus the flap body 18 are rotatably connected via a screw 28 with a worm gear 30 of a worm gear 32. The worm gear 32 further has a drive worm 34. Furthermore, the setting unit 10 also has a non-contact sensor device 40, which is shown here only schematically. For this purpose, in the worm wheel 30, a magnet 42 is inserted, which cooperates with a field direction-sensitive sensor 44 which is arranged on a circuit board 38. The board 38 is connected via a punch comb not shown with the plug 22.

Wie aus Fig. 3 hervorgeht, ist die Antriebsschnecke 34 drehfest mit einer Antriebswelle 46 eines Elektromotors 48 verbunden. Das Schneckenzahnrad 30 weist hier eine über den gesamten Umfang angeordnete Verzahnung auf. Es kann jedoch auch als Teilzahnrad ausgebildet sein.How out Fig. 3 shows, the drive screw 34 is rotatably connected to a drive shaft 46 of an electric motor 48. The worm gear 30 has here over the entire circumference arranged toothing on. However, it can also be designed as a partial gear.

Wie aus Fig. 4 ersichtlich ist, weist das Schneckenrad im vorliegenden Ausführungsbeispiel auch noch eine Umfangsfläche 46 auf, die mit Einrastorganen 48, 50, 52 versehen ist. Diese Rastorgane bilden zusammen mit einem Federorgan 54 eine Einrastvorrichtung 56. Durch eine derartige Einrastvorrichtung 56 kann die Stromzufuhr des Elektromotors bei erreichter Einrastposition wesentlich vermindert, wenn nicht sogar abgestellt werden. Jedes Einrastorgan 48, 50, 52 definiert hierzu eine Einrastposition, die wiederum eine bestimmte Stellung der Klappe 18 bedingt. Im vorliegenden Fall sind drei Einrastorgane 48, 50, 52 vorgesehen, die hier einen 1. Lastpunkt 25kW, 2. Lastpunkt 15kW und 3. Lastpunkt 10kW des Klappenkörpers 18 im Fluidkanal entsprechen. Das Federorgan 54 weist im vorliegenden Ausführungsbeispiel einen halbkugelförmigen Ansatz 56 auf, der mit einer Federkraft des Federorgans 54 in das jeweilige Rastorgan 48, 50, 52 eingreift.How out Fig. 4 can be seen, the worm wheel in the present embodiment also has a peripheral surface 46 which is provided with latching members 48, 50, 52. By means of such a latching device 56, the power supply of the electric motor can be substantially reduced, if not switched off, when the latching position has been reached. Each latching member 48, 50, 52 defines for this purpose a latching position, which in turn causes a certain position of the flap 18. In the present case, three latching members 48, 50, 52 are provided, which here correspond to a 1st load point 25kW, 2nd load point 15kW and 3rd load point 10kW of the flap body 18 in the fluid channel. The spring member 54 has in the present embodiment, a hemispherical projection 56 which engages with a spring force of the spring member 54 in the respective latching member 48, 50, 52.

Es sollte deutlich sein, dass die Einrastpositionen nicht auf die Offen-, Geschlossen-, Leerlauf- Stellung des Kappenkörpers 18 beschränkt sind. Insbesondere beim Einsatz für einen Rage-Extender können auch Einrastpositionen gewählt werden, die beispielsweise einem drittel, einem zweidrittel und einem voll geöffneten Fluidkanal entsprechen können. Demzufolge sind die Einrastorgane natürlich auch nicht auf die in Fig. 4 dargestellten Positionen am Umfang 46 beschränkt.It should be clear that the latching positions are not limited to the open, closed, idle position of the cap body 18. In particular, when used for a rage extender and locking positions can be selected, which may correspond, for example, a third, a two-thirds and a fully open fluid channel. Consequently, the latching organs are of course not on the in Fig. 4 Restricted positions on the circumference 46 limited.

Claims (8)

Drosselklappenvorrichtung für einen Verbrennungsmotor in einem Hybridantriebsstrang eines Kraftfahrzeuges, insbesondere für einen Range-Extender, mit einem Gehäuse (4), in dessen Inneren ein durchströmter Fluidkanal (6) ausgebildet ist, mit einem Klappenkörper (18), der den durchströmbaren Querschnitt des Kanals (6) bestimmt, mit einer Klappenwelle (16), auf der der Klappenkörper (18) angeordnet ist und die drehbar im Gehäuse (4) an mindestens einer Lagerstelle gelagert ist, mit einer Stelleinheit (10), die die Klappenwelle (16) antreibt, dadurch gekennzeichnet, dass die Stelleinheit (10) eine begrenzte Anzahl von Stellpositionen für den Klappenkörper (18) vorsieht.Throttle valve device for an internal combustion engine in a hybrid drive train of a motor vehicle, in particular for a range extender, with a housing (4), in the interior of which a flow-through fluid channel (6) is formed, with a flap body (18), the flow-through cross-section of the channel ( 6), with a flap shaft (16) on which the flap body (18) is arranged and which is rotatably mounted in the housing (4) at at least one bearing point, with an actuating unit (10) which drives the flap shaft (16), characterized in that the setting unit (10) provides a limited number of setting positions for the flap body (18). Drosselklappenvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Stelleinheit (10) eine Einrastvorrichtung (56) mit Einrastpositionen (48, 50, 52) aufweist.Throttle valve device according to claim 1, characterized in that the setting unit (10) has a latching device (56) with latching positions (48, 50, 52). Drosselklappenvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Stelleinheit (10) einen Elektromotor (48) und ein Getriebe (32) aufweist, wobei ein Getriebeausgang drehfest mit der Klappenwelle (16) verbunden ist.Throttle valve device according to claim 1 or 2, characterized in that the adjusting unit (10) comprises an electric motor (48) and a gear (32), wherein a transmission output rotatably connected to the flap shaft (16). Drosselklappenvorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass das Getriebe (32) als Schneckengetriebe ausgebildet ist, wobei ein Schneckenzahnrad (30) des Schneckengetriebes (32) drehfest mit der Klappenwelle (16) verbunden ist.Throttle valve device according to claim 3, characterized in that the gear (32) is designed as a worm gear, wherein a worm gear (30) of the worm gear (32) rotatably connected to the flap shaft (16). Drosselklappenvorrichtung nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die Stelleinheit (10), und hierbei beispielsweise
das Schneckenzahnrad (30), Einrastorgane (48, 50, 52) aufweist, die im Zusammenwirken mit einem Federorgan (54) ein Einrasten in die gewünschten Einrastpositionen ermöglichen.Throttle valve device according to one of claims 2 to 4, characterized in that the actuating unit (10), and here, for example
the worm gear (30), latching members (48, 50, 52) which, in cooperation with a spring member (54) enable engagement in the desired locking positions. Drosselklappenvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Gehäuse (4) den Fluidkanal (6) und ein Basisgehäuseteil (8) für die Stelleinheit (10), das durch ein Deckelteil (20) verschließbar ist, aufweist.Throttle valve device according to one of the preceding claims, characterized in that the housing (4) has the fluid channel (6) and a base housing part (8) for the actuating unit (10) which can be closed by a cover part (20). Drosselklappenvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Gehäuse (4) aus Kunststoff hergestellt ist.Throttle valve device according to one of the preceding claims, characterized in that the housing (4) is made of plastic. Drosselklappenvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Stelleinheit (10) eine berührungslose Sensorvorrichtung (40) aufweist.Throttle valve device according to one of the preceding claims, characterized in that the setting unit (10) has a non-contact sensor device (40).
EP12177784.1A 2011-09-12 2012-07-25 Choke valve device for an internal combustion engine Active EP2568147B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011112844A DE102011112844A1 (en) 2011-09-12 2011-09-12 Throttle valve device for an internal combustion engine

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EP2568147B1 EP2568147B1 (en) 2018-03-21

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CN106246359A (en) * 2016-10-18 2016-12-21 上海叶盛电气有限公司 A kind of stroke-increasing electric automobile electronics throttle-valve body
EP3617567A1 (en) * 2018-08-27 2020-03-04 Continental Automotive GmbH Valve for controlling exhaust gas or fresh air in a drive unit
EP3633248A1 (en) * 2018-10-02 2020-04-08 Continental Automotive GmbH Valve for controlling exhaust gas or fresh air in a drive unit

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DE3122975A1 (en) * 1980-06-10 1982-04-15 CTS Corp., 46514 Elkhart, Ind. "METHOD AND DEVICE FOR THE STEP-BY-STEP ADJUSTMENT OF AN INTERNAL COMBUSTION ENGINE SPEED CONTROL"
EP0825338A2 (en) * 1996-08-12 1998-02-25 Aisan Kogyo Kabushiki Kaisha Intake throttle apparatus for diesel engine
US6412752B1 (en) * 1999-09-08 2002-07-02 Siemens Canada Limited Power blade for throttle assembly
DE10114994A1 (en) 2000-03-28 2001-10-04 Borgwarner Inc Throttle body for insertion in engine; has throttle body casing with central inlet bore and throttle plate component injection moulded with integral shaft, to rotate in bore in plate component
DE102005010212A1 (en) * 2005-03-05 2006-09-07 Pierburg Gmbh Servo unit e.g. for control members of motor vehicles, has actuator to manipulate control member which is connected to actuator and control member connected to output shaft which swivels around axis of rotation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106246359A (en) * 2016-10-18 2016-12-21 上海叶盛电气有限公司 A kind of stroke-increasing electric automobile electronics throttle-valve body
EP3617567A1 (en) * 2018-08-27 2020-03-04 Continental Automotive GmbH Valve for controlling exhaust gas or fresh air in a drive unit
EP3633248A1 (en) * 2018-10-02 2020-04-08 Continental Automotive GmbH Valve for controlling exhaust gas or fresh air in a drive unit

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EP2568147B1 (en) 2018-03-21

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