EP0272373A1 - Throttle valve housing for an internal-combustion engine - Google Patents

Throttle valve housing for an internal-combustion engine Download PDF

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Publication number
EP0272373A1
EP0272373A1 EP87110199A EP87110199A EP0272373A1 EP 0272373 A1 EP0272373 A1 EP 0272373A1 EP 87110199 A EP87110199 A EP 87110199A EP 87110199 A EP87110199 A EP 87110199A EP 0272373 A1 EP0272373 A1 EP 0272373A1
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EP
European Patent Office
Prior art keywords
throttle valve
valve assembly
expansion body
edge
throttle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87110199A
Other languages
German (de)
French (fr)
Other versions
EP0272373B1 (en
Inventor
Gerald Muschalik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mannesmann VDO AG
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Mannesmann VDO AG
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Publication date
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Publication of EP0272373A1 publication Critical patent/EP0272373A1/en
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Publication of EP0272373B1 publication Critical patent/EP0272373B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1005—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M3/00—Idling devices for carburettors
    • F02M3/08—Other details of idling devices
    • F02M3/14—Location of idling system outlet relative to throttle valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86928—Sequentially progressive opening or closing of plural valves
    • Y10T137/86936—Pressure equalizing or auxiliary shunt flow
    • Y10T137/86944—One valve seats against other valve [e.g., concentric valves]
    • Y10T137/86984—Actuator moves both valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86928—Sequentially progressive opening or closing of plural valves
    • Y10T137/87016—Lost motion
    • Y10T137/87024—Cam determines sequence
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86928—Sequentially progressive opening or closing of plural valves
    • Y10T137/87016—Lost motion
    • Y10T137/87032—Rotary concentric valves

Definitions

  • the invention relates to a throttle valve assembly for an internal combustion engine, which has a throttle valve which can be pivoted by means of an actuating shaft guided through an actuating shaft passage in the throttle valve assembly.
  • throttle valve connectors are provided in the internal combustion engines of today's motor vehicles and are generally known.
  • the idle speed is not simply set to a certain value with an average load, but is regulated by means of an electronic controller to a setpoint value which is only slightly above the running limit of the engine in all load conditions. This reduces fuel consumption and the environmental impact of harmful exhaust gas.
  • the invention has for its object to design a throttle body of the type mentioned in such a way that with small opening angles, a sensitive control of the air flow rate is possible by adjusting the throttle valve.
  • This object is achieved in that in the edge region of the throttle valve, a spreading body which is movable out of the throttle valve edge when the throttle valve is opened as a function of the angular position of the throttle valve is arranged.
  • This simple design of the throttle valve body changes the surface of the throttle valve which throttles the cross-section of the throttle valve body when the throttle valve is pivoted.
  • the undesirable effect that occurs with previous throttle valves, that the free cross section increases significantly even at small opening angles, is avoided in that, thanks to the invention, the throttle valve increases in cross section at small opening angles compared to its closed position.
  • This design of a throttle valve eliminates the need for a bypass with an idle actuator as an actuator for idle control.
  • the throttle valve assembly according to the invention is particularly simple if the expansion body is a spring sleeve which, with two curved pieces which can be moved out of the throttle valve edge, bears against a footprint of the housing of the throttle valve assembly.
  • the footprint can also be generated very easily if it is provided coaxially with the control shaft passage on the inside in the throttle valve connector.
  • the expansion body is simple and easy to attach to the throttle valve if, according to a further advantageous embodiment of the invention, it consists of an inner, non-closed ring body fastened to the throttle valve, from the free ends of which ring bodies two expansion body arms extend radially outwards, on which one of the arc pieces running along the edge of the throttle valve and abutting the footprint is connected.
  • the expansion body has a different cross section over its circumference.
  • the bending line of the expansion body can be used in the desired manner to determine how the expansion body deforms when the throttle valve is pivoted and thus moves outward when the throttle valve is opened.
  • the throttle valve assembly shown in FIG. 1 has a throttle valve 2 in a housing 1, which is held by an actuating shaft 3 which is guided through an actuating shaft passage 4 of the housing 1.
  • a spreading body 5 designed as a spring sleeve, which rests with the ends of two curved pieces 6, 7 against a mounting surface 8 which surrounds the control shaft passage 4 and is provided on the inside of the housing 1 coaxially with the control shaft 3.
  • This footprint 8 is designed so that the arc pieces 6, 7 are spread with an initial pivoting movement of the throttle valve 2 and thereby move radially outward similar to the brake shoes of a drum brake.
  • FIG. 2 shows that the throttle valve 2 is formed from two outer disks 9, 10, which are kept at a distance by a center piece 11.
  • the expansion body 5 is arranged between these outer disks 9, 10. Shown in Figure 2 is also the footprint 8 through which the expansion body 5 is spread so that it can increase the area of the throttle valve 2 when the throttle valve 2 is pivoted in the opening direction.
  • the feed body 5 can be designed very differently, for example from two individual, semicircular arc pieces 6, 7, which are fastened to the throttle valve 2 on the side opposite the positioning surface 4.
  • FIG. 3 shows a special embodiment of the expansion body 5, which has a ring body 12 that is not closed.
  • This ring body 12 has two radially inward projections 13, 14, which serve to prevent it from rotating on the throttle valve 2. From the free ends of the ring body 12, two spreader arms 15, 16 lead radially outward, to which the curved pieces 6, 7 adjoin, which in turn rest with their free ends against the footprint 8 shown in the previous figures.

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

Abstract

In der Drosselklappe (2) eines Drosselklappenstutzens einer Brennkraftmaschine ist ein Spreizkörper (5) vorgesehen, der mit zwei Bogenstücken (6, 7) aus der Umfangsfläche der Drosselklappe (2) ragt. Die freien Enden der Bogenstücke (6, 7) liegen gegen eine Stellfläche (8) an, die am Gehäuse (1) des Drosselklappenstutzens vorgesehen ist. Die Stellfläche (8) ist so gestaltet, daß die Bogenstücke (6, 7) gespreizt und die Drosselklappe (2) bei kleinen Öffnungswinkeln großflächiger wird als im geschlossenen Zustand.In the throttle valve (2) of a throttle valve connector of an internal combustion engine, an expansion body (5) is provided which protrudes from the circumferential surface of the throttle valve (2) with two curved pieces (6, 7). The free ends of the curved pieces (6, 7) lie against a footprint (8) which is provided on the housing (1) of the throttle valve connector. The footprint (8) is designed so that the elbows (6, 7) spread and the throttle valve (2) with small opening angles is larger than in the closed state.

Description

Die Erfindung bezieht sich auf einen Drosselklappen­stutzen für eine Brennkraftmaschine, welcher eine mittels einer durch einen Stellwellendurchlaß in den Drosselklappenstutzen geführten Stellwelle verschwenk­bare Drosselklappe hat. Solche Drosselklappenstutzen sind in den Brennkraftmaschinen heutiger Kraftfahrzeuge vorgesehen und allgemein bekannt.The invention relates to a throttle valve assembly for an internal combustion engine, which has a throttle valve which can be pivoted by means of an actuating shaft guided through an actuating shaft passage in the throttle valve assembly. Such throttle valve connectors are provided in the internal combustion engines of today's motor vehicles and are generally known.

In modernen Kraftfahrzeugen wird die Leerlaufdrehzahl nicht einfach bei einer durchschnittlichen Belastung auf einen bestimmten Wert eingestellt, sondern mittels eines elektronischen Reglers auf einen Sollwert geregelt, der bei allen Belastungszuständen nur knapp oberhalb der Laufgrenze des Motors liegt. Dadurch verringern sich der Kraftstoffverbrauch und die Umweltbelastung durch schäd­liches Abgas.In modern motor vehicles, the idle speed is not simply set to a certain value with an average load, but is regulated by means of an electronic controller to a setpoint value which is only slightly above the running limit of the engine in all load conditions. This reduces fuel consumption and the environmental impact of harmful exhaust gas.

Bei Drosselklappenstutzen mit Drosselklappe ist es für solche Leerlaufregelungen nachteilig, daß der freie Luft­durchtrittsquerschnitt des Drosselklappenstutzens zu Beginn des Öffnens der Drosselklappe schon mit geringen Öffnungswinkeln der Drosselklappe sehr stark zunimmt. Da die Drosselklappe aus diesem Grunde nicht als Stellglied für die Leerlaufregelung geeignet ist, sieht man bei heutigen Leerlaufregelungen einen die Drosselklappe umgehenden Bypass vor, in dem ein Leerlaufsteller als Stellglied angeordnet ist. Das bedingt natürlich einen beträchtlichen Kostenaufwand, der oftmals dazu führt, daß die ganze Leerlaufregelung als zu teuer angesehen wird.In the case of throttle valve bodies with throttle valve, it is disadvantageous for such idle control systems that the free air passage cross section of the throttle valve body increases very strongly at the opening of the throttle valve even with small opening angles of the throttle valve. There For this reason the throttle valve is not suitable as an actuator for idle control. In today's idle control systems, a bypass bypassing the throttle valve is provided, in which an idle actuator is arranged as an actuator. This naturally entails a considerable cost, which often leads to the entire idle control being regarded as too expensive.

Der Erfindung liegt die Aufgabe zugrunde, einen Drossel­klappenstutzen der eingangs genannten Art derart zu ge­stalten, daß bei kleinen Öffnungswinkeln eine feinfüh­lige Regelung des Luftdurchsatzes durch Verstellen der Drosselklappe möglich ist.The invention has for its object to design a throttle body of the type mentioned in such a way that with small opening angles, a sensitive control of the air flow rate is possible by adjusting the throttle valve.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß im Randbereich der Drosselklappe ein beim Öffnen der Drosselklappe in Abhängigkeit von der Winkelstellung der Drosselklappe aus dem Drosselklappenrand heraus beweg­barer Spreizkörper angeordnet ist.This object is achieved in that in the edge region of the throttle valve, a spreading body which is movable out of the throttle valve edge when the throttle valve is opened as a function of the angular position of the throttle valve is arranged.

Durch diese einfache Gestaltung des Drosselklappenstut­zens verändert sich bei einem Verschwenken der Drossel­klappe die den Drosselklappenstutzenquerschnitt dros­selnde Fläche der Drosselklappe. Der bei bisherigen Drosselklappen auftretende, unerwünschte Effekt, daß der freie Querschnitt schon bei kleinen Öffnungswinkeln stark zunimmt, wird dadurch vermieden, daß dank der Erfindung die Drosselklappe bei kleinen Öffnungswinkeln im Vergleich zu ihrer Schließstellung im Querschnitt zunimmt. Durch diese Ausbildung einer Drosselklappe kann auf einen Bypass mit einem Leerlaufsteller als Stell­glied für eine Leerlaufregelung verzichtet werden.This simple design of the throttle valve body changes the surface of the throttle valve which throttles the cross-section of the throttle valve body when the throttle valve is pivoted. The undesirable effect that occurs with previous throttle valves, that the free cross section increases significantly even at small opening angles, is avoided in that, thanks to the invention, the throttle valve increases in cross section at small opening angles compared to its closed position. This design of a throttle valve eliminates the need for a bypass with an idle actuator as an actuator for idle control.

Besonders einfach gestaltet sich der erfindungsgemäße Drosselklappenstutzen, wenn der Spreizkörper eine Feder­manschette ist, welche mit zwei aus dem Drosselklappen­rand herausbewegbaren Bogenstücken gegen eine Stell­fläche des Gehäuses des Drosselklappenstutzens anliegt.The throttle valve assembly according to the invention is particularly simple if the expansion body is a spring sleeve which, with two curved pieces which can be moved out of the throttle valve edge, bears against a footprint of the housing of the throttle valve assembly.

Auch die Stellfläche kann sehr einfach erzeugt werden, wenn sie koaxial zum Stellwellendurchlaß innenseitig im Drosselklappenstutzen vorgesehen ist.The footprint can also be generated very easily if it is provided coaxially with the control shaft passage on the inside in the throttle valve connector.

Der Spreizkörper ist einfach ausgebildet und leicht auf der Drosselklappe zu befestigen, wenn er gemäß einer weiteren, vorteilhaften Ausgestaltung der Erfindung aus einem inneren, nicht geschlossenen, auf der Drossel­klappe befestigten Ringkörper besteht, von dessen freien Ringkörperenden zwei Spreizkörperarme radial nach außen verlaufen, an denen sich jeweils eines der entlang des Randes der Drosselklappe verlaufenden, gegen die Stell­fläche anliegenden Bogenstücke anschließt.The expansion body is simple and easy to attach to the throttle valve if, according to a further advantageous embodiment of the invention, it consists of an inner, non-closed ring body fastened to the throttle valve, from the free ends of which ring bodies two expansion body arms extend radially outwards, on which one of the arc pieces running along the edge of the throttle valve and abutting the footprint is connected.

Vorteilhaft ist es auch, wenn der Spreizkörper über seinen Umfang unterschiedlichen Querschnitt hat. Hier­durch kann man in der jeweils gewünschten Weise durch die Biegelinie des Spreizkörpers festlegen, wie sich der Spreizkörper bei einer Schwenkbewegung der Drosselklappe verformt und damit beim Öffnen der Drosselklappe nach außen bewegt.It is also advantageous if the expansion body has a different cross section over its circumference. As a result, the bending line of the expansion body can be used in the desired manner to determine how the expansion body deforms when the throttle valve is pivoted and thus moves outward when the throttle valve is opened.

Die Erfindung läßt zahlreiche Ausführungsformen zu. Zur weiteren Verdeutlichung ihres Grundprinzips ist eine davon schematisch in der Zeichnung dargestellt und wird nachfolgend beschrieben. Die Zeichnung zeigt in

  • Fig. 1 eine räumliche Darstellung eines Teilbe­reichs eines erfindungsgemäßen Drossel­klappenstutzens,
  • Fig. 2 einen Schnitt durch die Drosselklappe des Drosselklappenstutzens entlang der Linie II - II in Figur 1,
  • Fig. 3 eine Draufsicht auf einen Spreizkörper des Drosselklappenstutzens.
The invention allows numerous embodiments. To further clarify its basic principle, one of them is shown schematically in the drawing and is described below. The drawing shows in
  • 1 is a spatial representation of a portion of a throttle valve assembly according to the invention,
  • 2 shows a section through the throttle valve of the throttle valve assembly along the line II-II in FIG. 1,
  • Fig. 3 is a plan view of an expansion body of the throttle body.

Der in Figur 1 gezeigte Drosselklappenstutzen hat in einem Gehäuse 1 eine Drosselklappe 2, welche von einer Stellwelle 3 gehalten ist, die durch einen Stellwellen­durchlaß 4 des Gehäuses 1 geführt ist.The throttle valve assembly shown in FIG. 1 has a throttle valve 2 in a housing 1, which is held by an actuating shaft 3 which is guided through an actuating shaft passage 4 of the housing 1.

Aus der Umfangsfläche der Drosselklappe 2 ragt ein als Federmanschette ausgebildeter Spreizkörper 5 heraus, welcher mit den Enden zweier Bogenstücke 6, 7 gegen eine Stellfäche 8 anliegt, die den Stellwellendurchlaß 4 um­gibt und innenseitig am Gehäuse 1 koaxial zur Stellwelle 3 vorgesehen ist. Diese Stellfäche 8 ist so ausgebildet, daß die Bogenstücke 6, 7 bei einer anfänglichen Schwenkbewegung der Drosselklappe 2 gespreizt werden und dadurch ähnlich der Bremsbacken einer Trommelbremse radial nach außen wandern.From the circumferential surface of the throttle valve 2 protrudes a spreading body 5 designed as a spring sleeve, which rests with the ends of two curved pieces 6, 7 against a mounting surface 8 which surrounds the control shaft passage 4 and is provided on the inside of the housing 1 coaxially with the control shaft 3. This footprint 8 is designed so that the arc pieces 6, 7 are spread with an initial pivoting movement of the throttle valve 2 and thereby move radially outward similar to the brake shoes of a drum brake.

Die Figur 2 zeigt, daß die Drosselklappe 2 aus zwei Außenscheiben 9, 10 gebildet ist, die durch ein Mittel­stück 11 auf Abstand gehalten sind. Der Spreizkörper 5 ist zwischen diesen Außenscheiben 9, 10 angeordnet. Dar­gestellt ist in Figur 2 auch die Stellfäche 8, durch welche der Spreizkörper 5 gespreizt wird, so daß er die Fläche der Drosselklappe 2 zu vergrößern vermag, wenn die Drosselklappe 2 in Öffnungsrichtung verschwenkt wird.FIG. 2 shows that the throttle valve 2 is formed from two outer disks 9, 10, which are kept at a distance by a center piece 11. The expansion body 5 is arranged between these outer disks 9, 10. Shown in Figure 2 is also the footprint 8 through which the expansion body 5 is spread so that it can increase the area of the throttle valve 2 when the throttle valve 2 is pivoted in the opening direction.

Der Speizkörper 5 kann sehr unterschiedlich gestaltet sein, beispielsweise aus zwei einzelnen, halbkreisförmi­gen Bogenstücken 6, 7, welche an der der Stellfäche 4 gegenüberliegenden Seite auf der Drosselklappe 2 be­festigt sind. Die Figur 3 zeigt eine besondere Ausfüh­rungsform des Spreizkörpers 5, der einen nicht geschlos­senen Ringkörper 12 hat. Dieser Ringkörper 12 hat zwei radial nach innen gerichtete Vorsprünge 13, 14, die zu seiner Verdrehsicherung auf der Drosselklappe 2 dienen. Von den freien Enden des Ringkörpers 12 führen zwei Spreizkörperarme 15, 16 radial nach außen, an die sich die Bogenstücke 6, 7 anschließen, welche ihrerseits mit ihren freien Enden gegen die in den vorangegangenen Figuren gezeigte Stellfläche 8 anliegen.The feed body 5 can be designed very differently, for example from two individual, semicircular arc pieces 6, 7, which are fastened to the throttle valve 2 on the side opposite the positioning surface 4. FIG. 3 shows a special embodiment of the expansion body 5, which has a ring body 12 that is not closed. This ring body 12 has two radially inward projections 13, 14, which serve to prevent it from rotating on the throttle valve 2. From the free ends of the ring body 12, two spreader arms 15, 16 lead radially outward, to which the curved pieces 6, 7 adjoin, which in turn rest with their free ends against the footprint 8 shown in the previous figures.

Claims (5)

1. Drosselklappenstutzen für eine Brennkraftmaschine, welcher eine mittels einer durch einen Stellwellendurch­laß in den Drosselklappenstutzen geführten Stellwelle verschwenkbare Drosselklappe hat, dadurch gekennzeich­net, daß im Randbereich der Drosselklappe (2) ein beim Öffnen der Drosselklappe (2) in Abhängigkeit von der Winkelstellung der Drosselklappe (2) aus dem Drossel­klappenrand heraus bewegbarer Spreizkörper (5) angeord­net ist.1. Throttle valve assembly for an internal combustion engine, which has a pivotable throttle valve by means of an actuating shaft guided through an actuating shaft passage in the throttle valve assembly, characterized in that in the edge region of the throttle valve (2) when the throttle valve (2) is opened as a function of the angular position of the throttle valve ( 2) from the throttle valve edge movable expansion body (5) is arranged. 2. Drosselklappenstutzen nach Anspruch 1, dadurch ge­kennzeichnet, daß der Spreizkörper (5) eine Federman­schette ist, welche mit zwei aus dem Drosselklappenrand herausbewegbaren Bogenstücken (6, 7) gegen eine Stell­fläche (8) des Gehäuses (1) des Drosselklappenstutzens anliegt.2. Throttle valve assembly according to claim 1, characterized in that the expansion body (5) is a spring sleeve which bears with two elbow pieces movable out of the throttle valve edge (6, 7) against a footprint (8) of the housing (1) of the throttle valve assembly. 3. Drosselklappenstutzen nach Anspruch 2, dadurch ge­kennzeichnet, daß die Stellfäche (8) koaxial zum Stell­wellendurchlaß (4) innenseitig im Drosselklappenstutzen vorgesehen ist.3. Throttle valve assembly according to claim 2, characterized in that the positioning surface (8) coaxial to the control shaft passage (4) is provided on the inside in the throttle valve assembly. 4. Drosselklappenstutzen nach einem oder mehreren der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Spreizkörper (5) aus einem inneren, nicht geschlossenen, auf der Drosselklappe (2) befestigten Ringkörper (12) besteht, von dessen freien Ringkörperenden zwei Spreiz­körperarme (15, 16) radial nach außen verlaufen, an denen sich jeweils eines der entlang des Randes der Drosselklappe (2) verlaufenden, gegen die Stellfläche (8) anliegenden Bogenstücke (6, 7) anschließt.4. Throttle valve assembly according to one or more of the preceding claims, characterized in that the expansion body (5) consists of an inner, not closed, on the throttle valve (2) fixed ring body (12), from the free ends of the ring body two spreader arms (15, 16th ) run radially outwards, to each of which one of the arc pieces (6, 7) running along the edge of the throttle valve (2) adjoining the positioning surface (8) adjoins. 5. Drosselklappenstutzen nach einem oder mehreren der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Spreizkörper (5) über seinen Umfang unterschiedlichen Querschnitt hat.5. Throttle body according to one or more of the preceding claims, characterized in that the expansion body (5) has a different cross section over its circumference.
EP87110199A 1986-12-22 1987-07-15 Throttle valve housing for an internal-combustion engine Expired - Lifetime EP0272373B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3643948 1986-12-22
DE19863643948 DE3643948A1 (en) 1986-12-22 1986-12-22 THROTTLE VALVE CONNECTOR FOR AN INTERNAL COMBUSTION ENGINE

Publications (2)

Publication Number Publication Date
EP0272373A1 true EP0272373A1 (en) 1988-06-29
EP0272373B1 EP0272373B1 (en) 1990-01-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP87110199A Expired - Lifetime EP0272373B1 (en) 1986-12-22 1987-07-15 Throttle valve housing for an internal-combustion engine

Country Status (4)

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US (1) US4836163A (en)
EP (1) EP0272373B1 (en)
JP (1) JPS63167038A (en)
DE (2) DE3643948A1 (en)

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WO1991013245A2 (en) * 1990-02-16 1991-09-05 Siemens Aktiengesellschaft Engine throttle blade sealing
EP0494344A1 (en) * 1991-01-09 1992-07-15 Firma Carl Freudenberg Sealing device for a throttle valve construction with a solid shaft
WO1996035866A2 (en) * 1995-05-09 1996-11-14 Filterwerk Mann & Hummel Gmbh Throttle valve for regulating the amount of intake air in an internal combustion engine and process for producing the same
WO2008043754A1 (en) * 2006-10-10 2008-04-17 Continental Automotive Gmbh Throttle flap connecting piece

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Publication number Priority date Publication date Assignee Title
US5081972A (en) * 1990-02-16 1992-01-21 Siemens Automotive L.P. Engine throttle blade sealing
US5146887A (en) * 1990-07-12 1992-09-15 General Motors Corporation Valve assembly
DE4033803A1 (en) * 1990-10-24 1992-04-30 Vdo Schindling LOCKING DEVICE
DE19516927A1 (en) * 1995-05-09 1996-11-14 Mann & Hummel Filter Throttle valve for controlling amt. of intake air in internal combustion engine
JPH10103087A (en) 1996-10-01 1998-04-21 Mitsubishi Electric Corp Control valve gear
DE19819364B4 (en) * 1998-04-30 2006-10-12 Robert Bosch Gmbh throttle
US6129071A (en) * 1998-07-20 2000-10-10 Ford Global Technologies, Inc. Throttle valve system
US6135418A (en) * 1999-02-10 2000-10-24 Eaton Corporation Low-leakage air valve for variable air intake system
DE10126063B4 (en) * 2001-05-28 2004-07-15 Montaplast Gmbh flap device
DE10237864A1 (en) * 2002-08-19 2004-03-04 Siemens Ag Method of closing a throttle body
DE10240910A1 (en) * 2002-09-04 2004-03-18 Siemens Ag Method for closing a butterfly valve casing comprises attaching lower section of flap to shaft, edge sections to this and upper section to all three sections, space between them then being filled with foam
WO2005073535A1 (en) * 2004-02-01 2005-08-11 Behr Gmbh & Co. Kg Arrangement for cooling exhaust gas and charge air
DE102005010646A1 (en) * 2005-03-08 2006-09-14 Siemens Ag Throttle valve unit comprises throttle plate with peripheral groove, in which tolerance ring is mounted which can rotate when valve operates and has gap, in which stop is mounted
DE102005031899B4 (en) * 2005-07-07 2009-07-09 Siemens Ag Flap device for intake pipes and its manufacture
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WO1991013245A2 (en) * 1990-02-16 1991-09-05 Siemens Aktiengesellschaft Engine throttle blade sealing
WO1991013245A3 (en) * 1990-02-16 1991-12-26 Siemens Ag Engine throttle blade sealing
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WO1996035866A2 (en) * 1995-05-09 1996-11-14 Filterwerk Mann & Hummel Gmbh Throttle valve for regulating the amount of intake air in an internal combustion engine and process for producing the same
WO1996035866A3 (en) * 1995-05-09 1997-01-23 Mann & Hummel Filter Throttle valve for regulating the amount of intake air in an internal combustion engine and process for producing the same
WO2008043754A1 (en) * 2006-10-10 2008-04-17 Continental Automotive Gmbh Throttle flap connecting piece

Also Published As

Publication number Publication date
DE3643948A1 (en) 1988-06-23
EP0272373B1 (en) 1990-01-17
DE3761447D1 (en) 1990-02-22
US4836163A (en) 1989-06-06
JPS63167038A (en) 1988-07-11

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