WO2006136213A1 - Valve, especially for a motor vehicle exhaust system - Google Patents
Valve, especially for a motor vehicle exhaust system Download PDFInfo
- Publication number
- WO2006136213A1 WO2006136213A1 PCT/EP2006/002234 EP2006002234W WO2006136213A1 WO 2006136213 A1 WO2006136213 A1 WO 2006136213A1 EP 2006002234 W EP2006002234 W EP 2006002234W WO 2006136213 A1 WO2006136213 A1 WO 2006136213A1
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- WO
- WIPO (PCT)
- Prior art keywords
- flap
- housing
- valve
- valve according
- centering
- Prior art date
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Classifications
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- 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
- F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
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- 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
- F02D9/1005—Details of the flap
- F02D9/101—Special flap shapes, ribs, bores or the like
- F02D9/1015—Details of the edge of the flap, e.g. for lowering flow noise or improving flow sealing in closed flap position
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- 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
- F02D9/104—Shaping of the flow path in the vicinity of the flap, e.g. having inserts in the housing
- F02D9/1045—Shaping of the flow path in the vicinity of the flap, e.g. having inserts in the housing for sealing of the flow in closed flap position, e.g. the housing forming a valve seat
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- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
- F16K31/524—Mechanical actuating means with crank, eccentric, or cam with a cam
- F16K31/52408—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a lift valve
- F16K31/52441—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a lift valve with a pivoted disc or flap
Definitions
- Valve in particular for a motor vehicle exhaust system
- the invention relates to a valve, in particular for a motor vehicle exhaust system.
- valves are used, which can release a certain flow path or even close. These valves can be constructed in particular in the manner of a throttle valve.
- Such a valve is exposed in a exhaust system high mechanical and thermal loads. Due to the vibrations of an internal combustion engine to which the exhaust system is connected, the exhaust system and each of its components is exposed to strong vibrations. In addition, there are pulsations due to pressure fluctuations in the exhaust gas flow. In thermal terms, the temperatures of the exhaust gas flow from internal combustion engines lead to high loads; the temperature of the exhaust gas can be above 850 0 C.
- the strong temperature fluctuations between the ambient temperature, on which the valve is located when starting the internal combustion engine, and the exhaust gas temperature, for example during prolonged full load operation of the engine lead to strong thermal expansion, which may also be different due to the geometry and the material of the various components. Nevertheless, it must be ensured constructively that the valve is both on ambient temperature and at very high operating temperature on the one hand to operate smoothly and on the other hand reliably closes. Also, it should be ensured that the valve causes no unwanted rattling noises during operation.
- the invention provides a valve having a housing in which a flow cross-section is formed, a flap which is pivotally mounted in the housing so that it can close the flow cross-section substantially, and a centering which the position of the flap in defined the open and / or closed position.
- the centering ensures that the flap occupies a precisely defined center position regardless of thermal expansion in the open and / or closed position. This is on the one hand for the proper operation of the valve advantageous, and on the other hand prevents the centering that it comes to rattling noises.
- the centering comprises a nose which is formed on the flap and cooperates with a recess formed on the housing when the flap is closed.
- the recess together with the nose, ensures that the flap, when closed, is in its center position.
- the nose and the recess interact in a wedge-like manner. Apart from the particularly good centering, this also results in an immobilization of the flap in the closed position, whereby rattling noises are prevented.
- the centering comprises two stop surfaces on the housing, which cooperate with the flap when it is in the open position. Even in the open position is ensured in this way that the flap is in its middle position. It is particularly advantageous if the abutment surfaces are aligned obliquely to each other and the flap is provided with two stops, which are also aligned obliquely to each other. The stop surfaces of the housing automatically guide the flap together with the two stops attached to it into the middle position when the flap is in its open position. Again, a rattling of the flap is prevented.
- two contact surfaces in Housing are used, which are aligned obliquely to the central axis of the housing and on which the flap is applied when it is in the closed position. It is preferably provided that the flap is provided with two sealing surfaces whose orientation is adapted to the orientation of the contact surfaces.
- the housing and the flap act when the flap is in the closed position, similar to an intake or exhaust valve of a Verbrermungskraftmotors and the associated valve seat together, ie with obliquely to the central axis of the flow cross-section aligned contact surfaces.
- This design causes on the one hand, that the flap is centered in the closed position, and on the other, that set the sealing surfaces of the flap and the contact surfaces of the housing in operation, so that after a certain time a very good tightness between the flap and the housing results. This allows in particular to perform the housing and the flap as a metal casting.
- FIG. 1 is a perspective view of a valve according to a first embodiment of the invention
- Figure 2 is a partial section through the valve of Figure 1 with the flap in the open position;
- FIG. 3 shows a perspective view of the housing of the valve together with a flap shown broken away in the open position
- FIG. 5 is an enlarged scale section along the plane V-V of Figure 2;
- a valve according to a first embodiment is shown, which can be used in particular as a throttle valve in a motor vehicle exhaust system. It has a housing 10 in which a flap 12 is adjustably mounted. The flap may be adjusted between a closed position in which it substantially closes the flow cross-section through the housing 10 and an open position (see FIG. 2) in which the flow cross-section through the housing is substantially released.
- the flap 12 is attached to a shaft 14 which is pivotally mounted in the housing. On the shaft 14, a pivot arm 16 is mounted, which is coupled via a play-free ball joint 18 and a lever 20 with a vacuum box 22.
- a nose 24 is attached, which is associated with a recess 26 on the housing.
- the recess 26 is arranged so that the nose 24 is received by it when the flap 12 is in the closed position (see Figure 5).
- the nose 24 and the recess 26 interact in a wedge-like manner and form a centering for the flap 12 in a direction parallel to the pivot axis of the flap.
- the position of the flap 12 in the closed position is clearly determined, and rattling noises are prevented.
- the flap 12 also has two stops 28 which are spaced apart on one and the other side of the flap 12. Each stop 28 is oriented obliquely, with the two planes defined by the stops 28 intersecting along a straight line which is a greater distance from the pivot axis of the flap 12 than the stops 28.
- the stops 28 are associated with two stop surfaces 30 that on Projections are arranged laterally on the housing. The stop surfaces 30 are aligned obliquely to each other; they run parallel to the stops 28.
- the stops 28 together with the stop surfaces 30 form a centering for the flap 12 when it is in its open position. As can be seen in particular in Figure 2, this centering 28, 30 determines the position of the flap 12 in its open position to a central position.
- the wedge-like centering of the flap 12 in its open position also ensures that no rattling noises can occur.
- FIG. 6 shows a valve according to a second embodiment.
- sealing surfaces 34 are clearly bearing surfaces 32 in the housing to see where sealing surfaces 34 abut the outer periphery of the flap 12 when the flap is in the closed position.
- Contact surface 32 leads, so that there is a low flow resistance through the standing perpendicular to the flow direction bearing surface 32.
- FIGS. 7 and 8 show a valve according to a third embodiment.
- the difference to the first and the second embodiment is that the contact surfaces 32 is not aligned perpendicular to the central axis M of the housing 10, but obliquely (see in particular Figure 8).
- the two sealing surfaces 34 on the flap 12 are aligned according to the orientation of the contact surface 32, so obliquely to the plane of the flap 12. Since the contact surfaces 32 and the sealing surfaces 34 extend obliquely to the direction in which the sealing surfaces 34 of the flap 12, if this is closed, meet the contact surfaces 32 of the housing 10, the investment and - -
- Sealing surfaces 32, 34 particularly good in use, so that there is a very good tightness. It is therefore possible to use for the housing 10 and even for the flap 12 as a material a metal casting material, which would otherwise, if it is not post-cast, would not provide sufficient tightness.
- the centering of the flap in the open position is achieved in the same manner as in the first and second embodiments.
Abstract
Disclosed is a valve, especially for a motor vehicle exhaust system, comprising a housing (10) in which a flow cross section is formed, a flap (12) that is pivotally mounted in the housing so as to be able to essentially block the flow cross section, and a centering mechanism (24, 26; 28, 30) which defines the position of the flap (12) in the open and/or the closed state.
Description
Ventil, insbesondere für eine Kraftfahrzeug-Abgasanlage Valve, in particular for a motor vehicle exhaust system
Die Erfindung betrifft ein Ventil, insbesondere für eine Kraftfahrzeug- Abgasanlage.The invention relates to a valve, in particular for a motor vehicle exhaust system.
Bei Kraftfahrzeug- Abgasanlagen ist es in manchen Fällen wünschenswert, denIn automotive exhaust systems, it is desirable in some cases, the
Strömungsweg des Abgases beeinflussen zu können. Zu diesem Zweck werden Ventile eingesetzt, die einen bestimmten Strömungsweg freigeben oder auch verschließen können. Diese Ventile können insbesondere nach Art einer Drosselklappe aufgebaut sein.To be able to influence the flow path of the exhaust gas. For this purpose, valves are used, which can release a certain flow path or even close. These valves can be constructed in particular in the manner of a throttle valve.
Ein solches Ventil ist in einer Abgasanlage hohen mechanischen und thermischen Belastungen ausgesetzt. Aufgrund der Schwingungen eines Verbrennungsmotors, mit dem die Abgasanlage verbunden ist, wird auch die Abgasanlage und jedes ihrer Bauteile starken Schwingungen ausgesetzt. Hinzu kommen Pulsationen durch Druckschwankungen im Abgasstrom. In thermischer Hinsicht führen die Temperaturen des Abgasstromes von Verbrennungskraftmaschinen zu hohen Beanspruchungen; die Temperatur des Abgases kann oberhalb von 8500C liegen.Such a valve is exposed in a exhaust system high mechanical and thermal loads. Due to the vibrations of an internal combustion engine to which the exhaust system is connected, the exhaust system and each of its components is exposed to strong vibrations. In addition, there are pulsations due to pressure fluctuations in the exhaust gas flow. In thermal terms, the temperatures of the exhaust gas flow from internal combustion engines lead to high loads; the temperature of the exhaust gas can be above 850 0 C.
Insbesondere die starken Temperaturschwankungen zwischen der Umgebungstemperatur, auf der sich das Ventil beim Starten der Verbrennungskraftmaschine befindet, und der Abgastemperatur beispielsweise bei längerem Vollastbetrieb des Verbrennungsmotors führen zu starken Wärmedehnungen, die noch dazu aufgrund der Geometrie und des Werkstoffs der verschiedenen Bauteile unterschiedlich ausfallen können. Dennoch muß konstruktiv gewährleistet sein, daß das Ventil sowohl bei Umgebungstemperatur als auch bei sehr hoher Betriebstemperatur einerseits leichtgängig zu betätigen ist und andererseits zuverlässig schließt. Auch soll gewährleistet sein, daß das Ventil im Betrieb keine unerwünschten Klappergeräusche hervorruft.
Zu diesem Zweck schafft die Erfindung ein Ventil mit einem Gehäuse, in dem ein Strömungsquerschnitt gebildet ist, einer Klappe, die in dem Gehäuse schwenkbar angebracht ist, so daß sie den Strömungsquerschnitt im wesentlichen verschließen kann, und einer Zentrierung, welche die Position der Klappe in der geöffneten und/oder geschlossenen Stellung definiert. Die Zentrierung gewährleistet, daß die Klappe unabhängig von Wärmedehnungen in der geöffneten und/oder geschlossenen Stellung eine präzise definierte Mittelposition einnimmt. Dies ist zum einen für den ordnungsgemäßen Betrieb des Ventils vorteilhaft, und zum anderen verhindert die Zentrierung, daß es zu Klappergeräuschen kommt.In particular, the strong temperature fluctuations between the ambient temperature, on which the valve is located when starting the internal combustion engine, and the exhaust gas temperature, for example during prolonged full load operation of the engine lead to strong thermal expansion, which may also be different due to the geometry and the material of the various components. Nevertheless, it must be ensured constructively that the valve is both on ambient temperature and at very high operating temperature on the one hand to operate smoothly and on the other hand reliably closes. Also, it should be ensured that the valve causes no unwanted rattling noises during operation. To this end, the invention provides a valve having a housing in which a flow cross-section is formed, a flap which is pivotally mounted in the housing so that it can close the flow cross-section substantially, and a centering which the position of the flap in defined the open and / or closed position. The centering ensures that the flap occupies a precisely defined center position regardless of thermal expansion in the open and / or closed position. This is on the one hand for the proper operation of the valve advantageous, and on the other hand prevents the centering that it comes to rattling noises.
Vorzugsweise ist vorgesehen, daß die Zentrierung eine Nase umfaßt, die an der Klappe gebildet ist und mit einer am Gehäuse gebildeten Aussparung zusammenwirkt, wenn die Klappe geschlossen ist. Die Aussparung gewährleistet zusammen mit der Nase, daß sich die Klappe, wenn sie geschlossen wird, in ihrer Mittelposition befindet. Hierzu ist besonders vorteilhaft, wenn die Nase und die Aussparung keilartig zusammenwirken. Abgesehen von der besonders guten Zentrierung ergibt sich hierdurch auch eine Ruhigstellung der Klappe in der geschlossenen Stellung, wodurch Klappergeräusche unterbunden sind.It is preferably provided that the centering comprises a nose which is formed on the flap and cooperates with a recess formed on the housing when the flap is closed. The recess, together with the nose, ensures that the flap, when closed, is in its center position. For this purpose, it is particularly advantageous if the nose and the recess interact in a wedge-like manner. Apart from the particularly good centering, this also results in an immobilization of the flap in the closed position, whereby rattling noises are prevented.
Gemäß der bevorzugten Ausführungsform der Erfindung ist vorgesehen, daß die Zentrierung zwei Anschlagflächen am Gehäuse umfaßt, die mit der Klappe zusammenwirken, wenn diese sich in der geöffneten Stellung befindet. Auch in der geöffneten Stellung ist auf diese Weise gewährleistet, daß sich die Klappe in ihrer Mittelposition befindet. Besonders vorteilhaft ist hierbei, wenn die Anschlagflächen schräg zueinander ausgerichtet sind und die Klappe mit zwei Anschlägen versehen ist, die ebenfalls schräg zueinander ausgerichtet sind. Die Anschlagflächen des Gehäuses führen die Klappe zusammen mit den beiden an ihr angebrachten Anschlägen automatisch in die Mittelposition, wenn sich die Klappe in ihrer geöffneten Stellung befindet. Auch hier ist ein Klappern der Klappe verhindert.According to the preferred embodiment of the invention it is provided that the centering comprises two stop surfaces on the housing, which cooperate with the flap when it is in the open position. Even in the open position is ensured in this way that the flap is in its middle position. It is particularly advantageous if the abutment surfaces are aligned obliquely to each other and the flap is provided with two stops, which are also aligned obliquely to each other. The stop surfaces of the housing automatically guide the flap together with the two stops attached to it into the middle position when the flap is in its open position. Again, a rattling of the flap is prevented.
Zur Zentrierung der Klappe in der geschlossenen Stellung können gemäß einer alternativen Ausführungsform der Erfindung auch zwei Anlageflächen im
Gehäuse verwendet werden, die schräg zur Mittelachse des Gehäuses ausgerichtet sind und an denen die Klappe anliegt, wenn diese sich in der geschlossenen Stellung befindet. Dabei ist vorzugsweise vorgesehen, daß die Klappe mit zwei Dichtflächen versehen ist, deren Ausrichtung an die Ausrichtung der Anlageflächen angepaßt ist. Das Gehäuse und die Klappe wirken, wenn sich die Klappe in der geschlossenen Stellung befindet, ähnlich wie ein Einlaß- oder Auslaßventil eines Verbrermungskraftmotors und der zugehörige Ventilsitz miteinander zusammen, also mit schräg zur Mittelachse des Strömungsquerschnittes ausgerichteten Anlageflächen. Diese Gestaltung bewirkt zum einen, daß die Klappe in der geschlossenen Stellung zentriert ist, und zum anderen, daß sich die Dichtflächen der Klappe und die Anlageflächen des Gehäuses im Betrieb setzen, so daß sich nach einer gewissen Zeit eine sehr gute Dichtigkeit zwischen der Klappe und dem Gehäuse ergibt. Dies ermöglicht insbesondere, das Gehäuse und die Klappe als Metallgußteil auszuführen.To center the flap in the closed position, according to an alternative embodiment of the invention, two contact surfaces in Housing are used, which are aligned obliquely to the central axis of the housing and on which the flap is applied when it is in the closed position. It is preferably provided that the flap is provided with two sealing surfaces whose orientation is adapted to the orientation of the contact surfaces. The housing and the flap act when the flap is in the closed position, similar to an intake or exhaust valve of a Verbrermungskraftmotors and the associated valve seat together, ie with obliquely to the central axis of the flow cross-section aligned contact surfaces. This design causes on the one hand, that the flap is centered in the closed position, and on the other, that set the sealing surfaces of the flap and the contact surfaces of the housing in operation, so that after a certain time a very good tightness between the flap and the housing results. This allows in particular to perform the housing and the flap as a metal casting.
Die Erfindung wird nachfolgend anhand einer bevorzugten Ausführungsform beschrieben, die in den beigefügten Zeichnungen dargestellt ist. In diesen zeigen:The invention will be described below with reference to a preferred embodiment, which is illustrated in the accompanying drawings. In these show:
- Figur 1 in einer perspektivischen Ansicht ein Ventil gemäß einer ersten Ausfuhrungsform der Erfindung;- Figure 1 is a perspective view of a valve according to a first embodiment of the invention;
- Figur 2 einen Teilschnitt durch das Ventil von Figur 1, wobei sich die Klappe in der geöffneten Stellung befindet;Figure 2 is a partial section through the valve of Figure 1 with the flap in the open position;
- Figur 3 eine perspektivische Ansicht des Gehäuses des Ventils zusammen mit einer abgebrochen dargestellten Klappe in der geöffneten Stellung;FIG. 3 shows a perspective view of the housing of the valve together with a flap shown broken away in the open position;
- Figur 4 in vergrößertem Maßstab das Detail IV von Figur 2; und- Figure 4 on an enlarged scale, the detail IV of Figure 2; and
- Figur 5 in vergrößertem Maßstab einen Schnitt entlang der Ebene V-V von Figur 2;- Figure 5 is an enlarged scale section along the plane V-V of Figure 2;
- Figur 6 in einem Schnitt ein Ventil gemäß einer zweiten Ausfuhrungsform der Erfindung;
- Figur 7 in einem Schnitt ein Ventil gemäß einer dritten Ausführungsform der Erfindung; und- Figure 6 in a section a valve according to a second embodiment of the invention; - Figure 7 in a section a valve according to a third embodiment of the invention; and
- Figur 8 in vergrößertem Maßstab das Detail VIII von Figur 7.- Figure 8 on an enlarged scale, the detail VIII of Figure 7.
In den Figuren 1 bis 5 ist ein Ventil gemäß einer ersten Ausführungsform gezeigt, das insbesondere als Drosselventil in einer Kraftfahrzeug-Abgasanlage eingesetzt werden kann. Es weist ein Gehäuse 10 auf, in welchem verstellbar eine Klappe 12 angebracht ist. Die Klappe kann zwischen einer geschlossenen Stellung, in der sie den Strömungsquerschnitt durch das Gehäuse 10 im wesentlichen verschließt, und einer geöffneten Stellung (siehe Figur 2) verstellt werden, in welcher der Strömungsquerschnitt durch das Gehäuse im wesentlichen freigegeben ist. Die Klappe 12 ist an einer Welle 14 angebracht, die schwenkbar im Gehäuse gelagert ist. An der Welle 14 ist ein Schwenkarm 16 angebracht, der über ein spielfreies Kugelgelenk 18 und einen Stellhebel 20 mit einer Unterdruckdose 22 gekoppelt ist.In the figures 1 to 5, a valve according to a first embodiment is shown, which can be used in particular as a throttle valve in a motor vehicle exhaust system. It has a housing 10 in which a flap 12 is adjustably mounted. The flap may be adjusted between a closed position in which it substantially closes the flow cross-section through the housing 10 and an open position (see FIG. 2) in which the flow cross-section through the housing is substantially released. The flap 12 is attached to a shaft 14 which is pivotally mounted in the housing. On the shaft 14, a pivot arm 16 is mounted, which is coupled via a play-free ball joint 18 and a lever 20 with a vacuum box 22.
An der Klappe 12, genauer gesagt in der Mitte der Klappe mit maximalemAt the flap 12, more precisely in the middle of the flap with maximum
Abstand von der Schwenkachse, ist eine Nase 24 angebracht, der eine Aussparung 26 am Gehäuse zugeordnet ist. Die Aussparung 26 ist so angeordnet, daß die Nase 24 von ihr aufgenommen wird, wenn sich die Klappe 12 in der geschlossenen Stellung befindet (siehe Figur 5). Dabei wirken die Nase 24 und die Aussparung 26 keilartig zusammen und bilden eine Zentrierung für die Klappe 12 in einer Richtung parallel zur Schwenkachse der Klappe. Somit ist die Position der Klappe 12 in der geschlossenen Stellung eindeutig präzise bestimmt, und Klappergeräusche sind verhindert.Distance from the pivot axis, a nose 24 is attached, which is associated with a recess 26 on the housing. The recess 26 is arranged so that the nose 24 is received by it when the flap 12 is in the closed position (see Figure 5). The nose 24 and the recess 26 interact in a wedge-like manner and form a centering for the flap 12 in a direction parallel to the pivot axis of the flap. Thus, the position of the flap 12 in the closed position is clearly determined, and rattling noises are prevented.
Die Klappe 12 weist außerdem zwei Anschläge 28 auf, die im Abstand voneinander auf der einen und der anderen Seite der Klappe 12 angeordnet sind. Jeder Anschlag 28 ist schräg ausgerichtet, wobei sich die beiden Ebenen, die von den Anschlägen 28 definiert werden, entlang einer Gerade schneiden, die einen größeren Abstand von der Schwenkachse der Klappe 12 hat als die Anschläge 28. Den Anschlägen 28 sind zwei Anschlagflächen 30 zugeordnet, die an
Vorsprüngen seitlich am Gehäuse angeordnet sind. Auch die Anschlagflächen 30 sind schräg zueinander ausgerichtet; sie verlaufen parallel zu den Anschlägen 28. Die Anschläge 28 zusammen mit den Anschlagflächen 30 bilden eine Zentrierung für die Klappe 12, wenn diese sich in ihrer geöffneten Stellung befindet. Wie insbesondere in Figur 2 zu sehen ist, legt diese Zentrierung 28, 30 die Position der Klappe 12 in ihrer geöffneten Stellung auf eine Mittelposition fest. Die keilartige Zentrierung der Klappe 12 in ihrer geöffneten Stellung gewährleistet außerdem, daß keine Klappergeräusche entstehen können.The flap 12 also has two stops 28 which are spaced apart on one and the other side of the flap 12. Each stop 28 is oriented obliquely, with the two planes defined by the stops 28 intersecting along a straight line which is a greater distance from the pivot axis of the flap 12 than the stops 28. The stops 28 are associated with two stop surfaces 30 that on Projections are arranged laterally on the housing. The stop surfaces 30 are aligned obliquely to each other; they run parallel to the stops 28. The stops 28 together with the stop surfaces 30 form a centering for the flap 12 when it is in its open position. As can be seen in particular in Figure 2, this centering 28, 30 determines the position of the flap 12 in its open position to a central position. The wedge-like centering of the flap 12 in its open position also ensures that no rattling noises can occur.
In Figur 6 ist ein Ventil gemäß einer zweiten Ausführungsform gezeigt. Hier sind deutlich Anlageflächen 32 im Gehäuse zu sehen, an denen Dichtflächen 34 am Außenumfang der Klappe 12 anliegen, wenn sich die Klappe in der geschlossenen Stellung befindet. Die Anlagefläche 32, die der StrömungFIG. 6 shows a valve according to a second embodiment. Here are clearly bearing surfaces 32 in the housing to see where sealing surfaces 34 abut the outer periphery of the flap 12 when the flap is in the closed position. The contact surface 32, the flow
(Richtung P) zugewandt ist, also in Figur 6 die untere Anlagefläche 32, ist(Direction P), so in Figure 6, the lower contact surface 32, is
„vertieft" ausgeführt, so daß sie radial weiter außen liegt als ein sich stromaufwärts anschließender Abschnitt 36 des Gehäuses 10. Dieser Abschnitt 36 des Gehäuses wirkt nach Art eines Spoilers, der die Strömung über die"Recessed" executed so that it is located radially further outward than an upstream adjoining portion 36 of the housing 10. This portion 36 of the housing acts like a spoiler, the flow over the
Anlagefläche 32 führt, so daß sich ein geringer Strömungswiderstand durch die senkrecht zur Strömungsrichtung stehende Anlagefläche 32 ergibt.Contact surface 32 leads, so that there is a low flow resistance through the standing perpendicular to the flow direction bearing surface 32.
Auch bei der zweiten Ausführungsform ist eine Zentrierung der Klappe 12 vorhanden, die in Figur 6 zum Zwecke der besseren Übersichtlichkeit aber nicht dargestellt ist.Also in the second embodiment, a centering of the flap 12 is present, which is not shown in Figure 6 for the purpose of clarity.
In den Figuren 7 und 8 ist ein Ventil gemäß einer dritten Ausführungsform gezeigt. Der Unterschied zur ersten und zur zweiten Ausführungsform besteht darin, daß die Anlageflächen 32 nicht senkrecht zur Mittelachse M des Gehäuses 10 ausgerichtet ist, sondern schräg (siehe insbesondere Figur 8). Die beiden Dichtflächen 34 an der Klappe 12 sind entsprechend der Ausrichtung der Anlagefläche 32 ausgerichtet, also schräg zur Ebene der Klappe 12. Da die Anlageflächen 32 und die Dichtflächen 34 schräg zu der Richtung verlaufen, in welcher die Dichtflächen 34 der Klappe 12, wenn diese geschlossen wird, auf die Anlageflächen 32 des Gehäuses 10 treffen, setzen sich die Anlage- und
- -FIGS. 7 and 8 show a valve according to a third embodiment. The difference to the first and the second embodiment is that the contact surfaces 32 is not aligned perpendicular to the central axis M of the housing 10, but obliquely (see in particular Figure 8). The two sealing surfaces 34 on the flap 12 are aligned according to the orientation of the contact surface 32, so obliquely to the plane of the flap 12. Since the contact surfaces 32 and the sealing surfaces 34 extend obliquely to the direction in which the sealing surfaces 34 of the flap 12, if this is closed, meet the contact surfaces 32 of the housing 10, the investment and - -
Dichtflächen 32, 34 besonders gut im Gebrauch, so daß sich eine sehr gute Dichtigkeit ergibt. Es ist daher möglich, für das Gehäuse 10 und sogar für die Klappe 12 als Material ein Metallgußmaterial zu verwenden, welches ansonsten, falls es nicht nach dem Gießen nachbearbeitet wird, keine ausreichende Dichtigkeit ermöglichen würde.Sealing surfaces 32, 34 particularly good in use, so that there is a very good tightness. It is therefore possible to use for the housing 10 and even for the flap 12 as a material a metal casting material, which would otherwise, if it is not post-cast, would not provide sufficient tightness.
Die schräg verlaufenden Anlageflächen 32 sorgen zusammen mit den schräg verlaufenden Dichtflächen 34 für eine Zentrierung der Klappe 12 in der geschlossenen Stellung, so daß auf die Nase 24 mit der Aussparung 26 verzichtet werden kann. Die Zentrierung der Klappe in der geöffneten Stellung wird in der gleichen Weise wie bei der ersten und der zweiten Ausführungsform erzielt.
The oblique bearing surfaces 32 together with the inclined sealing surfaces 34 for centering the flap 12 in the closed position, so that the nose 24 can be dispensed with the recess 26. The centering of the flap in the open position is achieved in the same manner as in the first and second embodiments.
Bezugszeichenliste:LIST OF REFERENCE NUMBERS
10: Gehäuse10: housing
12: Klappe12: flap
14: Welle 16: Schwenkarm14: shaft 16: swivel arm
18: Kugelgelenk18: ball joint
20: Stellhebel20: Lever
22: Unterdruckdose22: Vacuum box
24: Nase 26: Aussparung24: nose 26: recess
28: Anschlag28: stop
30: Anschlagfläche30: stop surface
32: Anlagefläche32: contact surface
34: Dichtfläche 36: Spoiler- Abschnitt des Gehäuses
34: Sealing surface 36: Spoiler section of the housing
Claims
1. Ventil, insbesondere für eine Kraftfahrzeug- Abgasanlage, mit einem Gehäuse (10), in dem ein Strömungsquerschnitt gebildet ist, einer Klappe (12), die in dem Gehäuse schwenkbar angebracht ist, so daß sie den Strömungsquerschnitt im wesentlichen verschließen kann, und einer Zentrierung (24, 26; 28, 30), welche die Position der Klappe (12) in der geöffneten und/oder geschlossenen Stellung definiert.Valve, in particular for a motor vehicle exhaust system, comprising a housing (10) in which a flow cross-section is formed, a flap (12) which is pivotally mounted in the housing so that it can close the flow cross-section substantially, and a centering (24,26; 28,30) defining the position of the flap (12) in the open and / or closed position.
2. Ventil nach Anspruch 1, dadurch gekennzeichnet, daß die Zentrierung eine Nase (24) umfaßt, die an der Klappe (12) gebildet ist und mit einer am Gehäuse (10) gebildeten Aussparung (26) zusammenwirkt, wenn die Klappe geschlossen ist.2. Valve according to claim 1, characterized in that the centering comprises a nose (24) which is formed on the flap (12) and cooperates with a housing (10) formed recess (26) when the flap is closed.
3. Ventil nach Anspruch 2, dadurch gekennzeichnet, daß die Nase (24) und die Aussparung (26) keilartig zusammenwirken.3. Valve according to claim 2, characterized in that the nose (24) and the recess (26) cooperate in a wedge-like manner.
4. Ventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Zentrierung zwei Anschlagflächen (30) am Gehäuse umfaßt, die mit der Klappe (12) zusammenwirken, wenn diese sich in der geöffneten Stellung befindet.4. Valve according to one of the preceding claims, characterized in that the centering comprises two stop surfaces (30) on the housing, which cooperate with the flap (12) when it is in the open position.
5. Ventil nach Anspruch 4, dadurch gekennzeichnet, daß die Anschlagflächen (30) schräg zueinander ausgerichtet sind und die Klappe (12) mit zwei Anschlägen (28) versehen ist, die ebenfalls schräg zueinander ausgerichtet sind.5. Valve according to claim 4, characterized in that the stop surfaces (30) are aligned obliquely to each other and the flap (12) with two stops (28) is provided, which are also aligned obliquely to each other.
6. Ventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Gehäuse (10) zwei Anlageflächen (32) aufweist, die schräg zur Mittelachse des Gehäuses ausgerichtet sind und an denen die Klappe (12) anliegt, wenn diese sich in der geschlossenen Stellung befindet.6. Valve according to one of the preceding claims, characterized in that the housing (10) has two abutment surfaces (32) which are aligned obliquely to the central axis of the housing and against which the flap (12) abuts when they are in the closed position located.
7. Ventil nach Anspruch 6, dadurch gekennzeichnet, daß die Klappe (12) mit zwei Dichtflächen (34) versehen ist, deren Ausrichtung an die Ausrichtung der Anlageflächen (32) angepaßt ist. 7. Valve according to claim 6, characterized in that the flap (12) is provided with two sealing surfaces (34) whose orientation is adapted to the orientation of the contact surfaces (32).
8. Ventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Gehäuse (10) ein Metallgußteil ist.8. Valve according to one of the preceding claims, characterized in that the housing (10) is a metal casting.
9. Ventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Klappe (12) ein Metallgußteil ist. 9. Valve according to one of the preceding claims, characterized in that the flap (12) is a metal casting.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005028397.7 | 2005-06-20 | ||
| DE200510028397 DE102005028397A1 (en) | 2005-06-20 | 2005-06-20 | Valve e.g. for motor vehicle exhaust system has housing in which a flow cross section is formed and flap that is pivoted in housing to close flow cross section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006136213A1 true WO2006136213A1 (en) | 2006-12-28 |
Family
ID=36284058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2006/002234 WO2006136213A1 (en) | 2005-06-20 | 2006-03-10 | Valve, especially for a motor vehicle exhaust system |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102005028397A1 (en) |
| WO (1) | WO2006136213A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909855A (en) * | 2016-06-20 | 2016-08-31 | 泰州格灵电器制造有限公司 | Manual-automatic dual-purpose flow-limiting valve for air energy-assisted solar heat pump |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007042328A1 (en) | 2007-09-06 | 2009-03-12 | Emcon Technologies Germany (Augsburg) Gmbh | Exhaust valve for motor vehicle exhaust system, has housing and valve flap, which is attached in housing in pivoting manner such that it changes effective flow cross section of housing |
| DE102010020102A1 (en) * | 2010-05-10 | 2011-11-10 | Continental Automotive Gmbh | Device for controlling an exhaust valve of an internal combustion engine |
| DE102016110998A1 (en) | 2016-06-15 | 2017-12-21 | Fischer Rohrtechnik Gmbh | Throttle valve assembly and method of making a throttle assembly |
| HUE042579T2 (en) * | 2015-12-16 | 2019-07-29 | Fischer Rohrtechnik Gmbh | Throttle valve housing for a throttle valve arrangement for a combustion engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4491106A (en) * | 1982-11-29 | 1985-01-01 | Morris George Q | Throttle configuration achieving high velocity channel at partial opening |
| DE19607285A1 (en) * | 1996-02-27 | 1997-08-28 | Bosch Gmbh Robert | Switching device for automobile i.c. engine air intake pipe |
| DE19636457A1 (en) * | 1996-09-07 | 1998-03-19 | Jeannette Bastian | Combination of measures to improve cooling in electric transformers |
| DE19936456A1 (en) * | 1999-08-03 | 2001-02-08 | Mann & Hummel Filter | Valve |
| EP1489285A2 (en) * | 2003-06-16 | 2004-12-22 | Delpji Technologies Inc | Flap valve assembly |
| EP1503062A1 (en) * | 2003-07-22 | 2005-02-02 | Friedrich Boysen GmbH & Co. KG | Device for closing a fluid stream |
-
2005
- 2005-06-20 DE DE200510028397 patent/DE102005028397A1/en not_active Withdrawn
-
2006
- 2006-03-10 WO PCT/EP2006/002234 patent/WO2006136213A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4491106A (en) * | 1982-11-29 | 1985-01-01 | Morris George Q | Throttle configuration achieving high velocity channel at partial opening |
| DE19607285A1 (en) * | 1996-02-27 | 1997-08-28 | Bosch Gmbh Robert | Switching device for automobile i.c. engine air intake pipe |
| DE19636457A1 (en) * | 1996-09-07 | 1998-03-19 | Jeannette Bastian | Combination of measures to improve cooling in electric transformers |
| DE19936456A1 (en) * | 1999-08-03 | 2001-02-08 | Mann & Hummel Filter | Valve |
| EP1489285A2 (en) * | 2003-06-16 | 2004-12-22 | Delpji Technologies Inc | Flap valve assembly |
| EP1503062A1 (en) * | 2003-07-22 | 2005-02-02 | Friedrich Boysen GmbH & Co. KG | Device for closing a fluid stream |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909855A (en) * | 2016-06-20 | 2016-08-31 | 泰州格灵电器制造有限公司 | Manual-automatic dual-purpose flow-limiting valve for air energy-assisted solar heat pump |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102005028397A1 (en) | 2006-12-28 |
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