EP3181874A1 - Throttle valve housing for a throttle valve arrangement for a combustion engine - Google Patents
Throttle valve housing for a throttle valve arrangement for a combustion engine Download PDFInfo
- Publication number
- EP3181874A1 EP3181874A1 EP16204900.1A EP16204900A EP3181874A1 EP 3181874 A1 EP3181874 A1 EP 3181874A1 EP 16204900 A EP16204900 A EP 16204900A EP 3181874 A1 EP3181874 A1 EP 3181874A1
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- EP
- European Patent Office
- Prior art keywords
- throttle body
- throttle
- sealing
- sealing web
- flank
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- 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.)
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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
- F02D9/08—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
Definitions
- the present invention relates to a throttle body for a throttle assembly for an internal combustion engine, wherein the throttle body for receiving a pivotally mounted throttle and forms the movement space for the throttle valve, the throttle body having on a first side an inflow opening for receiving a fluid and the throttle body at a second side has an outflow opening for discharging a fluid and wherein in the movement space of the throttle body at least one projecting into the flow cross-section sealing web is arranged, which serves as a stop in the closed position of the throttle valve.
- the invention also relates to a method for producing such a throttle body.
- Throttle valve assemblies for internal combustion engines have long been known.
- such throttle valve arrangements are provided in order to be able to control the amount of air flowing into the engine in a targeted manner, so that it is possible to influence the output power of gasoline engines by adjusting the air-fuel ratio.
- throttle valve arrangements in the incoming air stream have a different meaning, namely with regard to adjusting the recirculation rate of exhaust gases.
- throttle valve arrangements are frequently used for influencing noise emissions and for influencing the back pressure in the exhaust gas system. Due to the thermal load throttle body are usually made of metal.
- the throttle valve assemblies that is influenced by pivoting the throttle valve in the throttle body, the flow cross-section and thus the flow resistance between the inlet and the discharge opening.
- the inflow opening is used to hold a fluid - usually of fresh air, exhaust gas or a mixture of both - in the throttle body. Accordingly, the fluid escapes via the discharge opening from the throttle body.
- the flow path between the inflow port and the outflow port is influenced by the throttle valve.
- Throttle valve arrangements are frequently known from the prior art in which the throttle body is completely uncontoured even in the region of the movement space of the throttle valve, so that the throttle valve forms a sealing gap in the closed position with the throttle body which, viewed in the direction of flow, thus flows from the inlet opening the flap housing looking to the outflow opening, can be seen.
- the throttle is then practically perpendicular to the wall of the throttle body.
- additional material for example, in the form of an integrally formed on the wall of the throttle body plate - to install, so that a stop for the throttle valve is formed in its closed position.
- the object of the present invention is to provide a throttle body with improved sealing properties, and a corresponding method for producing such a throttle body.
- the above-indicated and derived object is initially and essentially achieved in the previously described throttle body, characterized in that the sealing ridge is formed spanok in the wall of the throttle body. Due to the chip-free design of the sealing web in the wall of the throttle body is made clear that the sealing web is made with the material of the wall and no additional elements for the realization of the sealing web are introduced into the throttle body.
- a throttle body can be prepared by machining the chip-free forming, so for example by applying the high pressure forming or by pressing the wall material of the throttle body into a correspondingly contoured counter-mold with a rigid die (MatrizePatrize-forming).
- Such a throttle body is therefore particularly advantageous because not only simple geometries of the movement space of the throttle and simple throttle body geometries can be realized, but virtually any contours can be realized.
- the sealing web is formed in the movement space everywhere where the throttle valve terminates only in the closed position with the throttle body.
- the sealing web does not have to be a completely and closed circumferential sealing contour, but instead the sealing web is only formed where it can also unfold a corresponding sealing and stopping action with respect to the throttle valve.
- the throttle valve is attached to a shaft which extends centrally through the flow cross-section of the movement space of the throttle body. When pivoting the throttle valve with such a shaft inevitably moves a part of the throttle valve against the flow direction and the other part of the throttle valve in the flow direction.
- the throttle valve is practically not moved, at least not moved in the sense of a release and a closing of a flow cross-section. Accordingly, in the area of the shaft, the sealing web must not be executed. It can be seen from this example that the sealing web can be formed by a plurality of sealing web segments, which are formed along the sealing contour in and with the throttle body.
- the sealing web has a triangular profile with a flow flank, with a sealing flank and with a dome, wherein the flow flank and the sealing flank of a respective base level of the throttle body originate with a foot point and converge in the dome.
- the dome protrudes furthest into the flow cross section.
- the sealing flank is formed on the side of the sealing web on which the throttle valve strikes in the closed position.
- the flow flank is consequently arranged on the other side, ie opposite the sealing flank.
- Such a geometry of the sealing bar is particularly easy to produce and also gentle to the material. Due to the non-cutting shaping of the wall of the throttle body, a material flow is practically always to effect, which can significantly burden the formed material.
- the stress is greatest where the largest internal material displacement is effected, since the structure of the material is changed the most there.
- the triangular profile also has fluidic advantages, since the guided through the throttle body fluid flow is performed continuously and without offset through the edges of the sealing land, so that the influence of the sealing land is fluidically relatively low.
- a flat sealing area is formed in the sealing flank between its base and the dome.
- a circumferential sealing surface is realized, which - looking in or opposite to the flow direction of the sealing edge - forms a sealing ring. This is advantageous because it is particularly easy to also just form the parts of the throttle, in the closed position of the throttle valve face the flat sealing region of the sealing edge.
- a particularly advantageous embodiment of the throttle body is characterized in that the triangular profile of the sealing land is formed asymmetrically, wherein the sealing edge is steeper than the flow edge. It has proven to be advantageous to let the sealing edge run relatively steep, so with a very large slope in the flow cross section. One reason for this is that the sealing flank is then inclined only very slightly with respect to the flow cross-section and thus with respect to the throttle valve located in the closed position, which is then usually positioned in the flow cross-section, ie perpendicular to the flow direction.
- the throttle valve should rest not only with a narrow edge on its outer boundary on the sealing edge of the sealing strip circumferentially, but a better sealing effect is to be achieved, then the throttle should lie flat in the closed position on the sealing edge of the sealing web, so that realizes a circumferential sealing surface becomes. In this area, the throttle must thus form a correspondingly molded counterpart to the sealing edge.
- a disadvantage of the steep profile of the sealing flank in the flow cross-section is that the material load by non-cutting forming, for example by hydroforming, in this area is very high, since with little material, a relatively large deformation must be realized.
- the flow flank extends flatter than the sealing flank, so that significantly more material of the wall of the throttle body is available compared to the sealing flank to form the flow flank from its base to the crest.
- the asymmetrical design of the triangular sealing bar profile results in a comparatively small proportion of the area of the sealing bar - namely that in the region of the flow flank - being subjected to a comparatively small amount is and that a better stiffness than in a symmetrical design is achieved.
- the chip-free design of the sealing web in the wall of the throttle body allows a precise realization of the angle of attack of the sealing flank and also a precise realization of a flat sealing area, in which case a slightly larger material load is accepted than at the flow flank.
- the realization of a provided on the outer periphery of the throttle aperture with a slope corresponding to the slope of the sealing edge is also advantageous because in this way also causes a stiffening of the throttle itself.
- the inclination of the sealing flank additionally leads to the fact that the sealing surface is increased, in any case with respect to a vertically extending sealing flank, which therefore runs perpendicular to the flow direction.
- the plane sealing area of the sealing flank is inclined more than 70 °, more preferably more than 75 ° and most preferably about 80 ° with respect to the flow axis of the throttle body.
- the flow edge is inclined less than 50 °, more preferably less than 40 ° and most preferably about 35 ° relative to the flow axis of the throttle body.
- the invention also relates to a method for producing a throttle body for a throttle assembly for an internal combustion engine, wherein the throttle body for receiving a pivotally mounted throttle valve and forms the movement space for the throttle valve, wherein the throttle body has on a first side an inflow opening for receiving a fluid and the throttle body on a second side of an exhaust port for discharging a fluid and wherein in the movement space of the throttle body at least one projecting into the flow cross-section sealing ridge is arranged, which serves the throttle in the closed position as a stop.
- the initially derived object is achieved in this method in that a one-piece pipe part is reshaped so that the sealing web is produced in the throttle body by chip-free forming.
- the tube part is deformed by pressure from the inside to the outside, so that a flow of material is caused to the outside in a shaping external tool, in particular by hydroforming or by moving a rigid internal tool into a rigid external tool.
- the tube part is deformed by pressure effect from the outside inwards, so that a flow of material is effected inwardly into a forming internal tool, in particular by external high pressure forming or by moving a rigid external tool into a rigid internal tool.
- the method is carried out so that the above-described subject features of the throttle body are realized.
- Fig. 1 to 5 are shown in varying degrees of detail and with different focuses throttle body 1. Throttle body forms together with the throttle valves installed in them throttle valve assemblies; the throttle valves are not shown here themselves, of particular interest are the throttle body 1.
- Throttle body 1 serve to accommodate a pivotally mounted throttle and therefore form the movement space for the throttle.
- the throttle body 1 has on a first side an inflow port 2 for receiving a fluid, and the throttle body 1 has on a second side an exhaust port 3 for discharging the throttle body 1 by flowing fluid; characterized the flow direction D is defined.
- the throttle body 1 and the sealing web 4 of the throttle body 1 are made of a one-piece pipe part by chip-free forming.
- the throttle body 1 shown in the figures has been made by hydroforming using a solid but flexible forming medium. As a molding medium, a polyurethane elastomer has been used.
- the medium is introduced into the blank of the throttle body 1, axially, thus compressed in the flow direction D, whereby the material escapes radially and presses the wall of the blank in an unillustrated outer tool, whereby the end-formed Throttle body 1 is formed, which is shown in the figures.
- Fluide forming media can also be used.
- the sealing web 4 is formed in the movement space where the throttle valve terminates only in the closed position with the throttle body 1; in the region of the shaft opening 5 or around the shaft opening 5, the sealing web 4 is not formed. This results in two nearly semicircular sealing bar segments, which are incoherent and together form the sealing bar 4.
- the sealing ridge 4 has a triangular profile with a flow edge 6, with a sealing edge 7 and a dome 8, wherein the flow edge 6 and the sealing edge 7 each originate from a base level G of the throttle body 1 with a base FP and in the dome 8 converge.
- the base level is formed by the straight course of the wall of the throttle body, starting from which the contouring of the wall by the sealing web 4 begins.
- the dome 8 is the element which projects furthest into the flow cross section.
- the sealing flank 7 is formed on the side of the sealing web 4, against which the throttle valve strikes in the closed position.
- a flat sealing region 9 is formed between its base FP and the dome 8. This is particularly advantageous because a correspondingly flat counter surface can be formed without much effort on the throttle, for example in the form of an applied aperture. As a result, a significantly better sealing effect is achieved than if the sealing web 4 and the throttle flap would seal against each other only in a line-shaped Berstoffkontur.
- the triangular profile of the sealing web 4 is formed asymmetrically, wherein the sealing edge 7 is steeper than the flow edge 6.
- the planar sealing region 9 is inclined at about 80 ° with respect to the flow axis or the flow direction D, respectively, relative to the base level G of the throttle body 1.
- Fig. 3 is good to see that the sealing edge 7 fuß Vietnamese medicinal substance reaches below the base level of the throttle body 1, namely the base level by the distance h below.
- the reshaped contour runs arcuately in the base level G of the throttle body 1. This "undershooting" of the contour profile causes larger Umformradien can be realized with a smaller material load.
- a larger, even sealing area 9 can be realized in this way since the sealing area 9 is widely spaced from the outlet area of the arcuate section at the root FP of the sealing flank 7.
- Fig. 3 indicates that the flow edge 6 is inclined about 35 ° relative to the flow axis D of the throttle body 1 and thus with respect to the base level G of the throttle body 1.
- Fig. 1 . 2 and 4 to 6 in each case at least one circular opening region 5 is shown as a passage point for a drive shaft 10; the shaft 10 is only in the Fig. 5 and 6 shown schematically.
- the throttle body 1 is formed by hydroforming, the only defined opening area 5 is still closed; he will be opened afterwards, here by laser cutting.
- the sealing web 4 eccentrically to the opening portion 5, wherein the height of the sealing ridge 4 ramps down to the level of the boundary of the defined opening portion 5.
- the height of the sealing web 4 is thus already switched off on reaching the border of the opening area 5 to zero.
- Fig. 4 perspective situation is shown in Fig. 5 shown again simplified, wherein the shaft 10 has entered the place of the defined opening area 5. This is necessary in order to be able to recognize the advantageousness of the construction described.
- the height of the sealing web 4 drops in a ramp shape, that is to say along the ramp 11, to the level of the boundary of the defined opening region, it is considered in the flow direction (FIG. Fig. 5 below) realized over the full circumference almost closed sealing ring, also directly on the shaft 10th
- FIG. 6 An alternative realization is in Fig. 6 shown. Again, the sealing ridge 4 off-center on the circular opening portion 5 as a passage point for the drive shaft 10, the in Fig. 6 has taken the place of the opening area 5. The height of the sealing web 4 remains unchanged up to the boundary of the defined opening area 5 or up to the shaft 10. In Fig. 6 above is indicated that the ramp 11 only in the region of the potential opening 5, here replaced by the shaft 10, drops. Even so, as seen in the flow direction, a closed sealing contour can be realized, but then the boundary of the opening 5 is no longer circular.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Lift Valve (AREA)
Abstract
Beschrieben und dargestellt ist ein Drosselklappengehäuse (1) für eine Drosselklappenanordnung für einen Verbrennungsmotor, wobei das Drosselklappengehäuse (1) zur Aufnahme einer schwenkbar gelagerten Drosselklappe dient und den Bewegungsraum für die Drosselklappe bildet, wobei das Drosselklappengehäuse (1) an einer ersten Seite eine Einströmöffnung (2) zur Aufnahme eines Fluids aufweist und das Drosselklappengehäuse (1) an einer zweiten Seite eine Ausströmöffnung (3) zur Abgabe eines Fluids aufweist und wobei im Bewegungsraum des Drosselklappengehäuses (1) wenigstens ein in den Strömungsquerschnitt hineinragender Dichtsteg (4) angeordnet ist, der der Drosselklappe in Schließposition als Anschlag dient. Ein Drosselklappengehäuse (1) mit verbesserten Dichtheitseigenschaften wird dadurch erzielt, dass der Dichtsteg (4) spanfrei in der Wandung des Drosselklappengehäuses (1) ausgebildet ist.Described and illustrated is a throttle body (1) for a throttle assembly for an internal combustion engine, wherein the throttle body (1) for receiving a pivotally mounted throttle valve and forms the movement space for the throttle valve, wherein the throttle body (1) on a first side of an inflow opening ( 2) for receiving a fluid and the throttle body (1) on a second side an outflow opening (3) for discharging a fluid and wherein in the movement space of the throttle body (1) at least one projecting into the flow cross-section sealing web (4) is arranged, the the throttle valve in the closed position serves as a stop. A throttle body (1) with improved sealing properties is achieved in that the sealing web (4) is formed without chips in the wall of the throttle body (1).
Description
Die vorliegende Erfindung betrifft ein Drosselklappengehäuse für eine Drosselklappenanordnung für einen Verbrennungsmotor, wobei das Drosselklappengehäuse zur Aufnahme einer schwenkbar gelagerten Drosselklappe dient und den Bewegungsraum für die Drosselklappe bildet, wobei das Drosselklappengehäuse an einer ersten Seite eine Einströmöffnung zur Aufnahme eines Fluids aufweist und das Drosselklappengehäuse an einer zweiten Seite eine Ausströmöffnung zur Abgabe eines Fluids aufweist und wobei im Bewegungsraum des Drosselklappengehäuses wenigstens ein in den Strömungsquerschnitt hineinragender Dichtsteg angeordnet ist, der der Drosselklappe in Schließposition als Anschlag dient. Darüber hinaus betrifft die Erfindung auch ein Verfahren zur Herstellung eines derartigen Drosselklappengehäuses.The present invention relates to a throttle body for a throttle assembly for an internal combustion engine, wherein the throttle body for receiving a pivotally mounted throttle and forms the movement space for the throttle valve, the throttle body having on a first side an inflow opening for receiving a fluid and the throttle body at a second side has an outflow opening for discharging a fluid and wherein in the movement space of the throttle body at least one projecting into the flow cross-section sealing web is arranged, which serves as a stop in the closed position of the throttle valve. Moreover, the invention also relates to a method for producing such a throttle body.
Drosselklappenanordnungen für Verbrennungsmotoren sind seit Langem bekannt. Im Zuluftstrang eines Verbrennungsmotors werden derartige Drosselklappenanordnungen vorgesehen, um die in den Motor einströmende Luftmenge gezielt steuern zu können, sodass durch Einstellung des Kraftstoff-Luft-Verhältnisses Einfluss auf die Abgabeleistung bei Ottomotoren genommen werden kann. Bei Dieselmotoren kommt Drosselklappenanordnungen im Zuluftstrang eine andere Bedeutung zu, nämlich bezüglich der Einstellung der Rückführungsrate von Abgasen. Im Abgasstrang von Verbrennungsmotoren werden Drosselklappenanordnungen häufig angewendet zur Beeinflussung von Schallemissionen und zur Beeinflussung des Staudrucks in dem Abgasstrang. Aufgrund der thermischen Belastung sind Drosselklappengehäuse üblicherweise aus Metall hergestellt.Throttle valve assemblies for internal combustion engines have long been known. In the supply air line of an internal combustion engine, such throttle valve arrangements are provided in order to be able to control the amount of air flowing into the engine in a targeted manner, so that it is possible to influence the output power of gasoline engines by adjusting the air-fuel ratio. In the case of diesel engines, throttle valve arrangements in the incoming air stream have a different meaning, namely with regard to adjusting the recirculation rate of exhaust gases. In the exhaust system of internal combustion engines, throttle valve arrangements are frequently used for influencing noise emissions and for influencing the back pressure in the exhaust gas system. Due to the thermal load throttle body are usually made of metal.
Gemeinsam ist den Drosselklappenanordnungen, dass durch Verschwenken der Drosselklappe in dem Drosselklappengehäuse der Strömungsquerschnitt und damit der Strömungswiderstand zwischen der Einströmöffnung und der Ausströmöffnung beeinflusst wird. Die Einströmöffnung dient der Aufnahme eines Fluids - im Regelfall also von Frischluft, Abgas oder einem Gemisch aus beidem - in das Drosselklappengehäuse. Entsprechend entweicht das Fluid über die Ausströmöffnung aus dem Drosselklappengehäuse. Der Strömungsweg zwischen der Einströmöffnung und der Ausströmöffnung wird durch die Drosselklappe beeinflusst.Common to the throttle valve assemblies that is influenced by pivoting the throttle valve in the throttle body, the flow cross-section and thus the flow resistance between the inlet and the discharge opening. The inflow opening is used to hold a fluid - usually of fresh air, exhaust gas or a mixture of both - in the throttle body. Accordingly, the fluid escapes via the discharge opening from the throttle body. The flow path between the inflow port and the outflow port is influenced by the throttle valve.
Es ist ohne Weiteres ersichtlich, dass ein Qualitätsmerkmal für Drosselklappenanordnungen der Dichtheitheitsgrad ist, der in der Schließstellung der Drosselklappe erzielt wird. Bei der Produktion von Drosselklappenanordnungen muss dieser Dichtheitsgrad selbstverständlich mit hoher Genauigkeit reproduziert werden können, um eine gleichbleibende Qualität zu realisieren.It is readily apparent that a quality feature for throttle assemblies is the degree of tightness achieved in the throttle closed position. Of course, in the production of throttle valve assemblies, this degree of tightness must be reproducible with high accuracy to achieve consistent quality.
Aus dem Stand der Technik sind vielfach Drosselklappenanordnungen bekannt, bei denen das Drosselklappengehäuse auch im Bereich des Bewegungsraums der Drosselklappe vollkommen unkonturiert, also glatt ist, sodass die Drosselklappe in Schließposition mit dem Drosselklappengehäuse einen Dichtspalt bildet, der in Strömungsrichtung betrachtet, also von der Einströmöffnung durch das Klappengehäuse zur Ausströmöffnung schauend, erkennbar ist. Die Drosselklappe steht dann praktisch senkrecht auf der Wandung des Drosselklappengehäuses. Es ist ferner bekannt, im Bewegungsraum des Drosselklappengehäuses und zwar auf die Wandung des Drosselklappengehäuses zusätzliches Material - beispielsweise in Form eines an die Wandung des Drosselklappengehäuses angeformtes Blech - anzubringen, so dass ein Anschlag für die Drosselklappe in ihrer Schließposition entsteht. Dies ist beispielsweise dann einfach, wenn das Drosselklappengehäuse ein kreisförmiges Rohr ist, in das als Anschlag dann einfach ein geringfügig kleineres Rohr bzw. Halbrohre oder Rohrsegmente eingebracht werden. Dies ist verhältnismäßig aufwendig, zum Einen weil zusätzliche konstruktive Elemente in die beengten Abmessungen des Drosselklappengehäuses eingebracht und dort präzise positioniert werden müssen, zum Anderen, weil ein weiterer Verfahrensschritt zur Befestigung dieser Konstruktionselemente durchzuführen ist. Auch stellt sich bei dem Zusammenfügen von Drosselklappengehäuse und den zusätzlichen Dichtelementen wieder die Frage nach einer zuverlässig zu realisierenden Dichtheit (Problematik der Spaltenbildung).Throttle valve arrangements are frequently known from the prior art in which the throttle body is completely uncontoured even in the region of the movement space of the throttle valve, so that the throttle valve forms a sealing gap in the closed position with the throttle body which, viewed in the direction of flow, thus flows from the inlet opening the flap housing looking to the outflow opening, can be seen. The throttle is then practically perpendicular to the wall of the throttle body. It is also known, in the movement space of the throttle body and that on the wall of the throttle body additional material - for example, in the form of an integrally formed on the wall of the throttle body plate - to install, so that a stop for the throttle valve is formed in its closed position. This is easy, for example, if the throttle body is a circular tube into which then just a slightly smaller pipe or half pipes or pipe segments are introduced as a stop. This is relatively expensive, on the one hand because additional structural elements must be placed in the cramped dimensions of the throttle body and there must be precisely positioned, on the other hand, because a further process step for fixing these structural elements is carried out. Also arises in the assembly of the throttle body and the additional sealing elements again the question of a reliable to be realized tightness (problem of gap formation).
Aufgabe der vorliegenden Erfindung ist es, ein Drosselklappengehäuse mit verbesserten Dichtheitseigenschaften anzugeben, sowie ein entsprechendes Verfahren zur Herstellung eines derartigen Drosselklappengehäuses.The object of the present invention is to provide a throttle body with improved sealing properties, and a corresponding method for producing such a throttle body.
Die zuvor aufgezeigte und hergeleitete Aufgabe ist bei dem zuvor beschriebenen Drosselklappengehäuse zunächst und im Wesentlichen dadurch gelöst, dass der Dichtsteg spanfrei in der Wandung des Drosselklappengehäuses ausgebildet ist. Durch die spanfreie Ausbildung des Dichtsteges in der Wandung des Drosselklappengehäuses ist klargestellt, dass der Dichtsteg mit dem Material der Wandung hergestellt ist und keine zusätzlichen Elemente zur Realisierung des Dichtsteges in das Drosselklappengehäuse eingebracht sind. Ein solches Drosselklappengehäuse lässt sich durch Verfahren der spanfreien Umformung herstellen, also beispielsweise durch Anwendung der Hochdruckumformung oder durch Pressen des Wandmaterials des Drosselklappengehäuses in eine entsprechend konturierte Gegenform mit einem starren Stempel (MatrizePatrize-Umformung).The above-indicated and derived object is initially and essentially achieved in the previously described throttle body, characterized in that the sealing ridge is formed spanfrei in the wall of the throttle body. Due to the chip-free design of the sealing web in the wall of the throttle body is made clear that the sealing web is made with the material of the wall and no additional elements for the realization of the sealing web are introduced into the throttle body. Such a throttle body can be prepared by machining the chip-free forming, so for example by applying the high pressure forming or by pressing the wall material of the throttle body into a correspondingly contoured counter-mold with a rigid die (MatrizePatrize-forming).
Ein solches Drosselklappengehäuse ist auch deshalb in besonderer Weise vorteilhaft, weil nicht nur einfache Geometrien des Bewegungsraumes der Drosselklappe und einfache Drosselklappengeometrien realisiert werden können, sondern praktisch beliebige Konturen realisierbar sind.Such a throttle body is therefore particularly advantageous because not only simple geometries of the movement space of the throttle and simple throttle body geometries can be realized, but virtually any contours can be realized.
Besonders vorteilhaft ist es, wenn das Drosselklappengehäuse und der Dichtsteg des Drosselklappengehäuses aus einem einstückigen Rohrteil durch spanfreie Umformung hergestellt sind. Auch aus Rundrohren lassen sich unrunde Drosselklappengehäuse, speziell im Bereich des Bewegungsraums der Drosselklappe, herstellen.It when the throttle body and the sealing web of the throttle body are made of a one-piece pipe part by chip-free forming is particularly advantageous. Circular tubes can also be used to produce non-circular throttle bodies, especially in the area of the movement space of the throttle valve.
Bei einer vorteilhaften Weiterbildung des Drosselklappengehäuses ist vorgesehen, dass der Dichtsteg in dem Bewegungsraum überall dort ausgebildet ist, wo die Drosselklappe nur in Schließposition mit dem Drosselklappengehäuse abschließt. Bei dem Dichtsteg muss es sich also nicht um eine vollständig und geschlossen umlaufende Dichtkontur handeln, vielmehr wird der Dichtsteg nur dort ausgebildet, wo er gegenüber der Drosselklappe auch eine entsprechende Dicht- und Anschlagwirkung entfalten kann. Es kann beispielsweise vorgesehen sein, dass die Drosselklappe an einer Welle befestigt ist, die mittig durch den Strömungsquerschnitt des Bewegungsraumes des Drosselklappengehäuses verläuft. Beim Verschwenken der Drosselklappe mit einer derartigen Welle bewegt sich zwangsläufig ein Teil der Drosselklappe entgegen der Strömungsrichtung und der andere Teil der Drosselklappe in Strömungsrichtung. Am Ort der Welle selbst wird die Drosselklappe praktisch nicht bewegt, jedenfalls nicht bewegt im Sinne einer Freigabe und eines Verschließens eines Strömungsquerschnittes. Im Bereich der Welle muss demzufolge auch der Dichtsteg nicht ausgeführt sein. Anhand dieses Beispiels wird ersichtlich, dass der Dichtsteg von mehreren Dichtsteg-Segmenten gebildet werden kann, die entlang der Dichtkontur in und mit dem Drosselklappengehäuse ausgebildet sind.In an advantageous embodiment of the throttle body, it is provided that the sealing web is formed in the movement space everywhere where the throttle valve terminates only in the closed position with the throttle body. Thus, the sealing web does not have to be a completely and closed circumferential sealing contour, but instead the sealing web is only formed where it can also unfold a corresponding sealing and stopping action with respect to the throttle valve. It can be provided, for example, that the throttle valve is attached to a shaft which extends centrally through the flow cross-section of the movement space of the throttle body. When pivoting the throttle valve with such a shaft inevitably moves a part of the throttle valve against the flow direction and the other part of the throttle valve in the flow direction. At the location of the shaft itself, the throttle valve is practically not moved, at least not moved in the sense of a release and a closing of a flow cross-section. Accordingly, in the area of the shaft, the sealing web must not be executed. It can be seen from this example that the sealing web can be formed by a plurality of sealing web segments, which are formed along the sealing contour in and with the throttle body.
Bei einem weiteren bevorzugten Ausführungsbeispiel ist vorgesehen, dass der Dichtsteg ein dreieckförmiges Profil aufweist mit einer Strömungsflanke, mit einer Dichtflanke und mit einer Kuppe, wobei die Strömungsflanke und die Dichtflanke von jeweils einem Grundniveau des Drosselklappengehäuses mit einem Fußpunkt entspringen und in der Kuppe zusammenlaufen. Die Kuppe ragt dabei am weitesten in den Strömungsquerschnitt hinein. Die Dichtflanke ist an der Seite des Dichtstegs ausgebildet, an der die Drosselklappe in Schließposition anschlägt. Die Strömungsflanke ist folglich an der anderen Seite, also gegenüberliegend der Dichtflanke, angeordnet. Eine solche Geometrie des Dichtsteges ist besonders einfach herzustellen und auch materialschonend herzustellen. Durch das spanlose Umformen der Wandung des Drosselklappengehäuses ist praktisch immer ein Materialfluss zu bewirken, der das umgeformte Material ganz erheblich belasten kann. Die Beanspruchung ist dort am größten, wo der größte innere Materialversatz bewirkt wird, da das Gefüge des Materials dort am stärksten verändert wird. Mit einer dreieckförmigen Ausgestaltung des Dichtsteges ist es möglich, mit vergleichsweise sanft verlaufenden Konturen eine Dichtstruktur zu realisieren. Das dreieckförmige Profil hat zudem auch strömungstechnische Vorteile, da der durch das Drosselklappengehäuse geführte Fluidstrom durch die Flanken des Dichtsteges kontinuierlich und versatzfrei geführt wird, so dass der Einfluss des Dichtsteges strömungstechnisch verhältnismäßig gering ist.In a further preferred embodiment, it is provided that the sealing web has a triangular profile with a flow flank, with a sealing flank and with a dome, wherein the flow flank and the sealing flank of a respective base level of the throttle body originate with a foot point and converge in the dome. The dome protrudes furthest into the flow cross section. The sealing flank is formed on the side of the sealing web on which the throttle valve strikes in the closed position. The flow flank is consequently arranged on the other side, ie opposite the sealing flank. Such a geometry of the sealing bar is particularly easy to produce and also gentle to the material. Due to the non-cutting shaping of the wall of the throttle body, a material flow is practically always to effect, which can significantly burden the formed material. The stress is greatest where the largest internal material displacement is effected, since the structure of the material is changed the most there. With a triangular configuration of the sealing web, it is possible to realize a sealing structure with comparatively smooth contours. The triangular profile also has fluidic advantages, since the guided through the throttle body fluid flow is performed continuously and without offset through the edges of the sealing land, so that the influence of the sealing land is fluidically relatively low.
Besonders bevorzugt ist vorgesehen, dass in der Dichtflanke zwischen ihrem Fußpunkt und der Kuppe ein ebener Dichtbereich ausgebildet ist. Bei einem rohrförmigen Drosselklappengehäuse wird damit praktisch eine umlaufende Dichtfläche realisiert, die - in oder entgegengesetzt der Strömungsrichtung auf die Dichtflanke schauend - einen Dichtring bildet. Dies ist deshalb vorteilhaft, weil es besonders einfach ist, die Teile der Drosselklappe ebenfalls eben auszubilden, die in der Schließposition der Drosselklappe dem ebenen Dichtbereich der Dichtflanke gegenüberstehen.It is particularly preferably provided that in the sealing flank between its base and the dome a flat sealing area is formed. In a tubular throttle body so practically a circumferential sealing surface is realized, which - looking in or opposite to the flow direction of the sealing edge - forms a sealing ring. This is advantageous because it is particularly easy to also just form the parts of the throttle, in the closed position of the throttle valve face the flat sealing region of the sealing edge.
Eine besonders vorteilhafte Ausgestaltung des Drosselklappengehäuses zeichnet sich dadurch aus, dass das dreieckförmige Profil des Dichtstegs asymmetrisch ausgebildet ist, wobei die Dichtflanke steiler als die Strömungsflanke verläuft. Es hat sich als vorteilhaft herausgestellt, die Dichtflanke verhältnismäßig steil verlaufen zu lassen, also mit einer sehr großen Steigung in den Strömungsquerschnitt hinein. Ein Grund dafür ist, dass die Dichtflanke dann nur sehr wenig geneigt ist gegenüber dem Strömungsquerschnitt und damit gegenüber der in Schließposition befindlichen Drosselklappe, die dann üblicherweise im Strömungsquerschnitt positioniert ist, also senkrecht zur Strömungsrichtung. Wenn die Drosselklappe nicht nur mit einer schmalen Kante an ihrer äußeren Berandung an der Dichtflanke des Dichtsteges umlaufend anliegen soll, sondern eine bessere Dichtwirkung erzielt werden soll, dann sollte die Drosselklappe in Schließposition flächig an der Dichtflanke des Dichtsteges anliegen, so dass eine umlaufende Dichtfläche realisiert wird. In diesem Bereich muss die Drosselklappe also ein entsprechend angeformtes Gegenstück zu der Dichtflanke bilden. Je steiler die Dichtflanke in den Strömungsquerschnitt hineinragt, um so weniger muss die Drosselklappe in ihrem dichtenden Randbereich - abweichend von der reinen Form einer ebenen Scheibe - angeschrägt werden. Nachteilig an dem steilen Verlauf der Dichtflanke in den Strömungsquerschnitt ist, dass die Materialbelastung durch spanloses Umformen, beispielsweise durch Innenhochdruckumformen, in diesem Bereich sehr hoch ist, da mit wenig Material eine verhältnismäßig große Verformung realisiert werden muss.A particularly advantageous embodiment of the throttle body is characterized in that the triangular profile of the sealing land is formed asymmetrically, wherein the sealing edge is steeper than the flow edge. It has proven to be advantageous to let the sealing edge run relatively steep, so with a very large slope in the flow cross section. One reason for this is that the sealing flank is then inclined only very slightly with respect to the flow cross-section and thus with respect to the throttle valve located in the closed position, which is then usually positioned in the flow cross-section, ie perpendicular to the flow direction. If the throttle valve should rest not only with a narrow edge on its outer boundary on the sealing edge of the sealing strip circumferentially, but a better sealing effect is to be achieved, then the throttle should lie flat in the closed position on the sealing edge of the sealing web, so that realizes a circumferential sealing surface becomes. In this area, the throttle must thus form a correspondingly molded counterpart to the sealing edge. The steeper the sealing flank protrudes into the flow cross-section, the less must the throttle flap be bevelled in its sealing edge region, deviating from the pure shape of a flat disk. A disadvantage of the steep profile of the sealing flank in the flow cross-section is that the material load by non-cutting forming, for example by hydroforming, in this area is very high, since with little material, a relatively large deformation must be realized.
Aufgrund der angesprochenen asymmetrischen Ausbildung des Dichtsteges verläuft die Strömungsflanke flacher als die Dichtflanke, sodass also im Vergleich zu der Dichtflanke deutlich mehr Material der Wandung des Drosselklappengehäuses zur Verfügung steht, um die Strömungsflanke von ihrem Fußpunkt bis zur Kuppe hin auszubilden.Due to the mentioned asymmetrical design of the sealing web, the flow flank extends flatter than the sealing flank, so that significantly more material of the wall of the throttle body is available compared to the sealing flank to form the flow flank from its base to the crest.
Die asymmetrische Ausgestaltung des dreieckförmigen Dichtstegprofils führt insgesamt dazu, dass ein verhältnismäßig großer Flächenanteil des Dichtsteges - nämlich der im Bereich der Strömungsflanke - verhältnismäßig gering belastet ist und dass eine bessere Steifigkeit als bei einer symmetrischen Ausführung erreicht wird. Die spanfreie Ausbildung des Dichtsteges in der Wandung des Drosselklappengehäuses lässt eine präzise Realisierung des Anstellwinkels der Dichtflanke zu und auch eine präzise Realisierung eines ebenen Dichtbereiches, wobei hier eine etwas größere Materialbelastung in Kauf genommen wird als bei der Strömungsflanke.Overall, the asymmetrical design of the triangular sealing bar profile results in a comparatively small proportion of the area of the sealing bar - namely that in the region of the flow flank - being subjected to a comparatively small amount is and that a better stiffness than in a symmetrical design is achieved. The chip-free design of the sealing web in the wall of the throttle body allows a precise realization of the angle of attack of the sealing flank and also a precise realization of a flat sealing area, in which case a slightly larger material load is accepted than at the flow flank.
Die Realisierung einer am äußeren Umfang der Drosselklappe vorgesehenen Blende mit einer der Neigung der Dichtflanke entsprechenden Neigung ist ebenfalls vorteilhaft, da auf diesem Wege ebenfalls eine Versteifung der Drosselklappe an sich bewirkt wird. Die Neigung der Dichtflanke führt zusätzlich dazu, dass die Dichtfläche vergrößert wird, jedenfalls gegenüber einer senkrecht verlaufenden Dichtflanke, die also senkrecht zur Strömungsrichtung verläuft.The realization of a provided on the outer periphery of the throttle aperture with a slope corresponding to the slope of the sealing edge is also advantageous because in this way also causes a stiffening of the throttle itself. The inclination of the sealing flank additionally leads to the fact that the sealing surface is increased, in any case with respect to a vertically extending sealing flank, which therefore runs perpendicular to the flow direction.
Es ist vorzugsweise vorgesehen, dass der der ebene Dichtbereich der Dichtflanke mehr als 70°, besonders bevorzugt mehr als 75° und ganz besonders bevorzugt etwa 80° gegenüber der Strömungsachse des Drosselklappengehäuses geneigt ist.It is preferably provided that the plane sealing area of the sealing flank is inclined more than 70 °, more preferably more than 75 ° and most preferably about 80 ° with respect to the flow axis of the throttle body.
Entsprechend ist bei der asymmetrischen Ausgestaltung des Dichtsteges vorgesehen, dass die Strömungsflanke weniger als 50°, besonders bevorzugt weniger als 40° und ganz besonders bevorzugt etwa 35° gegenüber der Strömungsachse des Drosselklappengehäuses geneigt ist.Accordingly, it is provided in the asymmetrical design of the sealing web that the flow edge is inclined less than 50 °, more preferably less than 40 ° and most preferably about 35 ° relative to the flow axis of the throttle body.
Die Erfindung betrifft ebenfalls ein Verfahren zur Herstellung eines Drosselklappengehäuses für eine Drosselklappenanordnung für einen Verbrennungsmotor, wobei das Drosselklappengehäuse zur Aufnahme einer schwenkbar gelagerten Drosselklappe dient und den Bewegungsraum für die Drosselklappe bildet, wobei das Drosselklappengehäuse an einer ersten Seite eine Einströmöffnung zur Aufnahme eines Fluids aufweist und das Drosselklappengehäuse an einer zweiten Seite eine Ausströmöffnung zur Abgabe eines Fluids aufweist und wobei im Bewegungsraum des Drosselklappengehäuses wenigstens ein in den Strömungsquerschnitt hineinragender Dichtsteg angeordnet ist, der der Drosselklappe in Schließposition als Anschlag dient.The invention also relates to a method for producing a throttle body for a throttle assembly for an internal combustion engine, wherein the throttle body for receiving a pivotally mounted throttle valve and forms the movement space for the throttle valve, wherein the throttle body has on a first side an inflow opening for receiving a fluid and the throttle body on a second side of an exhaust port for discharging a fluid and wherein in the movement space of the throttle body at least one projecting into the flow cross-section sealing ridge is arranged, which serves the throttle in the closed position as a stop.
Die eingangs hergeleitete Aufgabe wird bei diesem Verfahren dadurch gelöst, dass ein einstückiges Rohrteil so umgeformt wird, dass der Dichtsteg im Drosselklappengehäuse durch spanfreie Umformung hergestellt wird.The initially derived object is achieved in this method in that a one-piece pipe part is reshaped so that the sealing web is produced in the throttle body by chip-free forming.
Vorzugsweise wird das Rohrteil durch Druckwirkung von Innen nach außen umgeformt, sodass ein Materialfluss nach außen in ein formgebendes Außenwerkzeug bewirkt wird, insbesondere durch Innenhochdruckumformen oder durch bewegen eines starren Innenwerkzeugs in ein starres Außenwerkzeug.Preferably, the tube part is deformed by pressure from the inside to the outside, so that a flow of material is caused to the outside in a shaping external tool, in particular by hydroforming or by moving a rigid internal tool into a rigid external tool.
Alternativ wird das Rohrteil durch Druckwirkung von außen nach innen umgeformt, so dass ein Materialfluss nach innen in ein formgebendes Innenwerkzeug bewirkt wird, insbesondere durch Außenhochdruckumformen oder durch Bewegen eines starren Außenwerkzeugs in ein starres Innenwerkzeug.Alternatively, the tube part is deformed by pressure effect from the outside inwards, so that a flow of material is effected inwardly into a forming internal tool, in particular by external high pressure forming or by moving a rigid external tool into a rigid internal tool.
Insbesondere wird das Verfahren so ausgeführt, dass die zuvor beschriebenen gegenständlichen Merkmale des Drosselklappengehäuses realisiert werden.In particular, the method is carried out so that the above-described subject features of the throttle body are realized.
Im Einzelnen gibt es nun eine Vielzahl von Möglichkeiten, die Drosselklappenanordnung und das Verfahren zur Herstellung einer solchen Drosselklappenanordnung auszugestalten und weiterzubilden. Dazu wird verwiesen sowohl auf die den unabhängigen Patentansprüchen nachgeordneten Patentansprüche als auch auf die nachfolgende Beschreibung von bevorzugten Ausführungsbeispielen in Verbindung mit der Zeichnung. In der Zeichnung zeigen
- Fig. 1
- ein erfindungsgemäßes Drosselklappengehäuse in perspektivischer Ansicht,
- Fig. 2
- ein erfindungsgemäßes Drosselklappengehäuse in Draufsicht mit Dichtstegprofil und Ausnehmung für eine Antriebswelle,
- Fig. 3
- schematisch das Dichtstegprofil gemäß
Fig. 2 , - Fig. 4
- eine Detailansicht des Dichtsteges im Bereich der Ausnehmung für eine Antriebswelle,
- Fig. 5
- eine schematische Draufsicht für eine erste Realisierung des Dichtstegs im Bereich der Ausnehmung für eine Antriebswelle und
- Fig. 6
- eine schematische Draufsicht für eine zweite, alternative Realisierung des Dichtstegs im Bereich der Ausnehmung für eine Antriebswelle.
- Fig. 1
- an inventive throttle body in perspective view,
- Fig. 2
- an inventive throttle body in plan view with sealing bar profile and recess for a drive shaft,
- Fig. 3
- schematically the sealing bar profile according to
Fig. 2 . - Fig. 4
- a detailed view of the sealing web in the region of the recess for a drive shaft,
- Fig. 5
- a schematic plan view of a first realization of the sealing ridge in the region of the recess for a drive shaft and
- Fig. 6
- a schematic plan view of a second alternative realization of the sealing ridge in the region of the recess for a drive shaft.
In den
Drosselklappengehäuse 1 dienen zur Aufnahme einer schwenkbar gelagerten Drosselklappe und bilden daher den Bewegungsraum für die Drosselklappe. Das Drosselklappengehäuse 1 weist an einer ersten Seite eine Einströmöffnung 2 zur Aufnahme eines Fluids auf, und das Drosselklappengehäuse 1 weist an einer zweiten Seite eine Ausströmöffnung 3 zur Abgabe des das Drosselklappengehäuse 1 durchströmenden Fluids auf; dadurch wird die Durchströmungsrichtung D definiert.
Im Bewegungsraum des Drosselklappengehäuses 1 ist ein in den Strömungsquerschnitt hineinragender Dichtsteg 4 angeordnet, der der Drosselklappe in Schließposition als Anschlag dient. Von Bedeutung ist hier, dass der Dichtsteg 4 spanfrei in der Wandung des Drosselklappengehäuses 1 ausgebildet ist. Bei den hier dargestellten Ausführungsbeispielen sind das Drosselklappengehäuse 1 und der Dichtsteg 4 des Drosselklappengehäuses 1 aus einem einstückigen Rohrteil durch spanfreie Umformung hergestellt sind. Die in den Figuren dargestellten Drosselklappengehäuse 1 sind durch Innenhochdruckumformung hergestellt worden, und zwar unter Verwendung eines soliden aber flexiblen Umformmediums. Als Umformmedium ist ein Polyurethan-Elastomer verwendet worden. Das Medium wird in den Rohling des Drosselklappengehäuses 1 eingeführt, axial, also in Durchströmungsrichtung D zusammengestaucht, wodurch das Material radial entweicht und die Wandung des Rohlings in ein nicht dargestelltes Außenwerkzeug drückt, wodurch das endgeformte Drosselklappengehäuse 1 entsteht, das in den Figuren gezeigt ist. Fluide Umformmedien sind ebenfalls einsetzbar.In the movement space of the
In den
In den
In der Dichtflanke 7 ist zwischen ihrem Fußpunkt FP und der Kuppe 8 ein ebener Dichtbereich 9 ausgebildet. Das ist besonders vorteilhaft, da ohne großen Aufwand an der Drosselklappe eine entsprechend ebene Gegenfläche ausgebildet werden kann, beispielsweise in Form einer aufgebrachten Blende. Dadurch wird eine deutlich bessere Dichtwirkung erzielt, als wenn der Dichtsteg 4 und die Drosselklappe nur in einer linienförmigen Berührkontur gegeneinander abdichten würden.In the sealing
Das dreieckförmige Profil des Dichtstegs 4 ist asymmetrisch ausgebildet, wobei die Dichtflanke 7 steiler als die Strömungsflanke 6 verläuft. Der ebene Dichtbereich 9 ist etwa 80° gegenüber der Strömungsachse bzw. der Durchflussrichtung D respektive gegenüber dem Grundniveau G des Drosselklappengehäuses 1 geneigt.The triangular profile of the sealing
In
In den
In dem in den Figuren dargestellten Ausführungsbeispiel läuft der Dichtsteg 4 außermittig auf den Öffnungsbereich 5 zu, wobei die Höhe des Dichtstegs 4 rampenförmig auf das Niveau der Berandung des definierten Öffnungsbereichs 5 abfällt. Die Höhe des Dichtstegs 4 ist also bereits bei Erreichen der Umrandung des Öffnungsbereiches 5 auf Null abgesungen. Die in
Eine alternative Realisierung dazu ist in
- 11
- Drosselklappengehäusethrottle body
- 22
- Einströmöffnunginflow
- 33
- Ausströmöffnungoutflow
- 44
- Dichtstegsealing land
- 55
- Öffnungsbereich für WelleOpening area for shaft
- 66
- Strömungsflankeflow edge
- 77
- Dichtflankesealing edge
- 88th
- Kuppeknoll
- 99
- ebener Dichtbereichlevel sealing area
- 1010
- Wellewave
- 1111
- Ramperamp
Claims (14)
dadurch gekennzeichnet,
dass der Dichtsteg (4) spanfrei in der Wandung des Drosselklappengehäuses (1) ausgebildet ist.Throttle body (1) for a throttle assembly for an internal combustion engine, wherein the throttle body (1) for receiving a pivotally mounted throttle and forms the movement space for the throttle valve, wherein the throttle body (1) on a first side of an inflow opening (2) for receiving a Has fluid and the throttle body (1) on a second side of an exhaust port (3) for discharging a fluid and wherein in the movement space of the throttle body (1) at least one projecting into the flow cross section sealing web (4) is arranged, the throttle valve in the closed position as Stop serves,
characterized,
that the sealing web (4) is formed without chips in the wall of the throttle body (1).
dadurch gekennzeichnet,
dass ein einstückiges Rohrteil so umgeformt wird, dass der Dichtsteg (4) im Drosselklappengehäuse (1) durch spanfreie Umformung hergestellt wird.Method for producing a throttle body (1) for a throttle assembly for an internal combustion engine, wherein the throttle body (1) accommodates a pivotally mounted throttle valve and forms the movement space for the throttle valve, wherein the throttle body (1) at a first side an inflow opening (2 ) for receiving a fluid and the throttle body (1) on a second side an outflow opening (3) for discharging a fluid and wherein in the movement space of the throttle body (1) at least one projecting into the flow cross section sealing web (4) is arranged, which Throttle valve in closing position serves as a stop,
characterized,
that a one-piece pipe part is reshaped so that the sealing web (4) in the throttle body (1) is produced by chip-free forming.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL16204900T PL3181874T3 (en) | 2015-12-16 | 2016-12-16 | Throttle valve housing for a throttle valve arrangement for a combustion engine |
RS20190213A RS58698B1 (en) | 2015-12-16 | 2016-12-16 | Throttle valve housing for a throttle valve arrangement for a combustion engine |
PCT/EP2017/064585 WO2017216246A1 (en) | 2016-06-15 | 2017-06-14 | Throttle valve housing for a throttle valve assembly for an internal combustion engine |
US16/310,018 US10753288B2 (en) | 2016-06-15 | 2017-06-14 | Throttle valve housing for a throttle valve arrangement for an internal combustion engine |
CN201780050184.4A CN109642504A (en) | 2016-06-15 | 2017-06-14 | The throttling valve chest of throttle valve gear for combustion motors |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015122036.9A DE102015122036A1 (en) | 2015-12-16 | 2015-12-16 | Throttle valve arrangement for an exhaust line or a supply air line of an internal combustion engine |
DE102016110998.3A DE102016110998A1 (en) | 2016-06-15 | 2016-06-15 | Throttle valve assembly and method of making a throttle assembly |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3181874A1 true EP3181874A1 (en) | 2017-06-21 |
EP3181874B1 EP3181874B1 (en) | 2018-11-14 |
Family
ID=57754982
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16204900.1A Not-in-force EP3181874B1 (en) | 2015-12-16 | 2016-12-16 | Throttle valve housing for a throttle valve arrangement for a combustion engine |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP3181874B1 (en) |
ES (1) | ES2711752T3 (en) |
HU (1) | HUE042579T2 (en) |
PL (1) | PL3181874T3 (en) |
PT (1) | PT3181874T (en) |
RS (1) | RS58698B1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8120908U1 (en) * | 1981-07-16 | 1981-10-08 | Bowa GmbH, Apparate- und Behälterbau, 8261 Aschau | PIPE CONNECTOR WITH A PIVOTING EXHAUST VALVE |
GB2079901A (en) * | 1980-07-18 | 1982-01-27 | Pont A Mousson | Butterfly valve |
DE4329526A1 (en) * | 1993-09-02 | 1995-03-09 | Mann & Hummel Filter | Throttle device |
DE4408909A1 (en) * | 1994-03-16 | 1995-09-21 | Bosch Gmbh Robert | Motor throttle prodn. |
DE102005028397A1 (en) * | 2005-06-20 | 2006-12-28 | Arvinmeritor Emissions Technologies Gmbh | 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 |
-
2016
- 2016-12-16 PT PT16204900T patent/PT3181874T/en unknown
- 2016-12-16 PL PL16204900T patent/PL3181874T3/en unknown
- 2016-12-16 ES ES16204900T patent/ES2711752T3/en active Active
- 2016-12-16 RS RS20190213A patent/RS58698B1/en unknown
- 2016-12-16 EP EP16204900.1A patent/EP3181874B1/en not_active Not-in-force
- 2016-12-16 HU HUE16204900A patent/HUE042579T2/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2079901A (en) * | 1980-07-18 | 1982-01-27 | Pont A Mousson | Butterfly valve |
DE8120908U1 (en) * | 1981-07-16 | 1981-10-08 | Bowa GmbH, Apparate- und Behälterbau, 8261 Aschau | PIPE CONNECTOR WITH A PIVOTING EXHAUST VALVE |
DE4329526A1 (en) * | 1993-09-02 | 1995-03-09 | Mann & Hummel Filter | Throttle device |
DE4408909A1 (en) * | 1994-03-16 | 1995-09-21 | Bosch Gmbh Robert | Motor throttle prodn. |
DE102005028397A1 (en) * | 2005-06-20 | 2006-12-28 | Arvinmeritor Emissions Technologies Gmbh | 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 |
Also Published As
Publication number | Publication date |
---|---|
PL3181874T3 (en) | 2019-05-31 |
PT3181874T (en) | 2019-02-25 |
EP3181874B1 (en) | 2018-11-14 |
ES2711752T3 (en) | 2019-05-07 |
RS58698B1 (en) | 2019-06-28 |
HUE042579T2 (en) | 2019-07-29 |
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