EP0841477A1 - Throttle valve arrangement for an internal combustion engine - Google Patents

Throttle valve arrangement for an internal combustion engine Download PDF

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Publication number
EP0841477A1
EP0841477A1 EP96810757A EP96810757A EP0841477A1 EP 0841477 A1 EP0841477 A1 EP 0841477A1 EP 96810757 A EP96810757 A EP 96810757A EP 96810757 A EP96810757 A EP 96810757A EP 0841477 A1 EP0841477 A1 EP 0841477A1
Authority
EP
European Patent Office
Prior art keywords
throttle valve
housing
internal combustion
combustion engine
light metal
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.)
Withdrawn
Application number
EP96810757A
Other languages
German (de)
French (fr)
Inventor
Gerhard Dahmen
Erhard Saur
Bernard Poyetton
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.)
3A Composites International AG
Original Assignee
Alusuisse Lonza Services Ltd
Alusuisse Technology and Management Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alusuisse Lonza Services Ltd, Alusuisse Technology and Management Ltd filed Critical Alusuisse Lonza Services Ltd
Priority to EP96810757A priority Critical patent/EP0841477A1/en
Priority to EP97944676A priority patent/EP0937197B1/en
Priority to DE59707234T priority patent/DE59707234D1/en
Priority to ES97944676T priority patent/ES2174295T3/en
Priority to PCT/CH1997/000407 priority patent/WO1998021460A1/en
Publication of EP0841477A1 publication Critical patent/EP0841477A1/en
Withdrawn legal-status Critical Current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
    • F02D9/1035—Details of the valve housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/107—Manufacturing or mounting details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1075—Materials, e.g. composites
    • F02D9/1085—Non-organic materials, e.g. metals, alloys, ceramics
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10255—Arrangements of valves; Multi-way valves
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10314—Materials for intake systems
    • F02M35/10327—Metals; Alloys
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10137—Flexible ducts, e.g. bellows or hoses
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10373—Sensors for intake systems
    • F02M35/1038—Sensors for intake systems for temperature or pressure
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10373—Sensors for intake systems
    • F02M35/10386—Sensors for intake systems for flow rate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/08—Thermoplastics

Definitions

  • the present invention relates to a throttle valve arrangement of an internal combustion engine with internal combustion based on the Otto principle, containing a throttle valve part in the intake tract from the housing and at least one throttle valve, the housing a Cast part, predominantly made of a light metal, and the throttle valve is predominantly made of is a light metal.
  • the intake tract has, in particular, a throttle element with a single-flow or double-flow throttle valve part and a throttle valve-equipped switching intake manifold and / or an air flow meter, for example in the form of a dynamic pressure flow meter for the intake tract.
  • the housings are in the engine compartment, for example a motor vehicle, such as a passenger car or a delivery van and correspondingly very often mechanical loads, but above all large ones Temperature differences, exposed.
  • the housing of the Throttle bodies for example in casting processes, such as a die casting process, are preferred made of aluminum alloys.
  • the throttle valves themselves are made of brass or Made of aluminum alloys.
  • the throttle valves made of aluminum alloy are in generally stamped out of post-processing products such as strips or sheets and reworked.
  • the throttle valves are designed in such a way that they move smoothly around their in normal operation Axis are rotatably mounted in the throttle body.
  • Axis are rotatably mounted in the throttle body.
  • the throttle valves in the throttle element tend to jam and lead to improper engine running, faulty fuel supply or engine stall. By jamming can also damage the throttle valves and the housing and there is no longer any reliable function. This has always been distracting with the Dissemination of catalytic afterburning and control of mixture formation by means of
  • the lambda probe arranged on the exhaust gas side are any interference factors of inhibiting throttle valves, no longer tolerable. That is why it was tried Solve problem with cut edges with special geometry on the throttle cap. This solution is complex due to the precision mechanical machining of metal and does not always lead to the desired results. I.e. is still a significant one Reject rate on defective throttle valve arrangements, which the quality requirements the automaker did not meet to watch.
  • this is achieved in that the light metal of the housing (2) of the Throttle valve part and the light metal of the throttle valve (1) a comparable thermal Have coefficient of linear expansion, the thermal coefficient of linear expansion of the light metal of the housing (2) and the thermal coefficient of linear expansion of the light metal of the throttle valve (1), based on the smaller thermal Coefficients of linear expansion differ by a maximum of 5%.
  • the thermal expansion coefficients (linear Thermal expansion coefficient) by at most 4%, preferably by at most 2%.
  • Throttle valve arrangements of an internal combustion engine are also useful which are the thermal expansion coefficients of the light metals of the housing of the throttle valve part and the throttle valve in the temperature range from 20 ° C to 100 ° C and in particular from -40 ° C to 140 ° C, by at most 5%, advantageously by at most 4% and in particular by a maximum of 2%.
  • Throttle valve arrangements on internal combustion engines according to the present invention are very particularly preferred, in which the thermal linear expansion coefficients of the light metals of the housing of the throttle valve part and / or the throttle valve are, for example, in a range from 21.7 x 10 -6 / ° K to 22.9 x 10 -6 / ° K, preferably from 22.0 x 10 -6 / ° K to 22.6 x 10 -6 / ° K and in particular at 22.5 x 10 -6 / ° K, in each case at 20 to 100 ° C .
  • Light metals include, for example, magnesium and, in particular, its alloys.
  • aluminum and its alloys are preferred used.
  • the housing of the throttle valve part for example made of an alloy from the AlSi series, AlSiMg or AlSiCu.
  • the alloys from the AlSi and AlSiCu series are preferred.
  • the housing of the throttle valve part can be produced, for example, by casting, die casting processes are preferred.
  • the light metal is used in the die casting process molten or if the alloy is thixotropic, semi-rigid, due to external Pressurization pressed into a mold. After the metal solidifies, the shape opened and the raw housing part can be removed from the mold.
  • the Housing part can be reworked, such as by deburring, grinding, polishing and it can Drilled holes and bushings and the like. Inserted, thread cut and the surfaces are tempered like galvanic layers or deposited on the surfaces the surfaces are anodized, etc. Accordingly, the housing itself from the light metal, while surface layers and / or built-in or add-on parts another material can exist.
  • the throttle valve for example, made of an alloy from the AlSi, AlSiMg or AlSiCu series. Alloys from the AlSiMg and AlSiCu series are preferred.
  • ingots made of the alloys mentioned, for example processed by rolling, into strips or sheets and from the strips blanks for the throttle valves can be punched out or sheet metal.
  • the alloys can also be used, for example, in a die-casting process to produce blank throttle bodies are processed.
  • the blanks can after attaching the storage elements, such as Axles or bearing bushes and actuators can be installed directly or the blanks can reworked and a surface treatment, such as surface treatment, polishing, Chromium plating and / or other or further galvanic treatment or anodic Undergo oxidation.
  • a surface treatment such as surface treatment, polishing, Chromium plating and / or other or further galvanic treatment or anodic Undergo oxidation.
  • deburring, fine turning or grinding additionally required.
  • throttle body blanks are as already mentioned, by attaching the bearing elements, such as axles or bushings and actuators, ready for further use.
  • the throttle valves themselves consist of the light metal, while e.g. Surface layers and attachments from others Materials can exist.
  • Throttle valve arrangements of an internal combustion engine are particularly preferred according to the present invention, in which the housing of the throttle valve part and the throttle valve are made of the same alloy and the alloy from the series, for example selected by AlSi, AlSiMg or AlSiCu.
  • the strength values of the mentioned light metals and thereby the aluminum alloys can be characterized, for example, as follows: minimum strength Rm 300 MPa and Rp0.2 minimum 260MPa.
  • the present throttle valve assembly of an internal combustion engine can be a single-flow Throttle valve part with a throttle valve or a double-flow throttle valve part with two throttle bodies.
  • the throttle valve can also be a throttle valve actuator for idle control.
  • the throttle valve can also be equipped with an integrated idle actuator be equipped.
  • Further embodiments are throttle valves with a servomotor or throttle valves containing a throttle valve actuator for idle control and / or a throttle switch, which is usually attached to a throttle body and operated by the throttle shaft, and e.g. for idle control, overrun cut-off or ignition angle adjustment is used.
  • the throttle valve can be a throttle valve damper exhibit.
  • the throttle valve connector serves to accommodate the Throttle valve, e.g. the spring assemblies for resetting the throttle valve, a throttle valve potentiometer, the throttle linkage and the idle actuator.
  • the throttle valve arrangement can also have a switching intake manifold with one or two or three throttle valves.
  • Switching intake pipes serve to close the intake pipe lengths vary and summarize different intake manifold arms.
  • the switching intake manifold and the Throttle valves arranged therein can be made of the light metals mentioned, whose Numerical values of their thermal expansion coefficients do not exceed 5%, appropriately differentiate by at most 4% and advantageously by at most 2%. Further Preferences can be found in the information on the throttle body and throttle valve remove.
  • a throttle valve arrangement can be used to measure the air volume for example, an air mass meter or an air flow meter.
  • Air flow meter can work on the principle of a dynamic pressure flow meter.
  • Back pressure flow meter can contain a damper or can operate on the float principle work and contain a baffle plate.
  • the housing of the air flow meter and the baffle flap or the baffle plate can be made of the aforementioned light metals, the Numerical values of their thermal expansion coefficients do not exceed 5%, appropriately differentiate by at most 4% and advantageously by at most 2%. Further Preferences can be found in the information on the throttle body and throttle valve remove.
  • the present invention finds use in the throttle valve assembly of an internal combustion engine with internal combustion based on the Otto principle, contained in the intake system a throttle valve part from the housing and at least one throttle valve, the Housing is a casting made of a light metal and the throttle valve from one Light metal is on injection systems with mechanical or electronic control.
  • FIG. 1 shows an example of a throttle valve arrangement on an internal combustion engine.
  • a throttle valve (1) is surrounded by a housing of the throttle valve part (2).
  • the intake air flows through the air filter (6) and then through the air flow meter (3).
  • the data for the intake air temperature and air volume are collected by sensors determined and the signals (4, 5) forwarded to a control unit (7).
  • the intake air flows through the intake tract (8), the fuel is injected through the injection nozzle (9) and that The mixture formed enters the combustion chamber (10).

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

Abstract

The device consists of a throttle (1) of mainly light metal in a cast housing (2), mainly of light metal. The metals of both housing and throttle have a comparable thermal length expansion coefficient, with a differential of maximum 5% relative to the smaller expansion coefficient. Within a temperature of range of 20-100 degrees C, preferably from -40 degrees C to 140 degrees C, the differential is maximum 5%, functionally maximum 5% and preferably maximum 2%. The light metal is an aluminium alloy, e.g. AlSi, AlSiMg, or AlSiCu.

Description

Vorliegende Erfindung betrifft eine Drosselklappenanordnung einer Verbrennungskraftmaschine mit innerer Verbrennung nach dem Otto-Prinzip, enthaltend im Ansaugtrakt ein Drosselklappenteil aus Gehäuse und wenigstens einer Drosselklappe, wobei das Gehäuse ein Gussteil, vorwiegend aus einem Leichtmetall, ist und die Drosselklappe vorwiegend aus einem Leichtmetall ist.The present invention relates to a throttle valve arrangement of an internal combustion engine with internal combustion based on the Otto principle, containing a throttle valve part in the intake tract from the housing and at least one throttle valve, the housing a Cast part, predominantly made of a light metal, and the throttle valve is predominantly made of is a light metal.

Es ist bekannt, im Ansaugtrakt mittels einer Einspritzanlage in einer Verbrennungskraftmaschine nach dem Otto-Prinzip ein Luftkraftstoffgemisch zur nachfolgenden Verbrennung in den Brennräumen zu erzeugen und den Motorleistungsbedarf zu regeln. Der Ansaugtrakt weist insbesondere ein Drosselorgan, mit einem ein- oder zweiflutigen Drosselklappenteil auf und es können ein drosselklappenbestücktes Schaltsaugrohr und/oder ein Luftmengenmesser, beispielsweise in Form eines Staudruck-Durchflussmessers zum Ansaugtrakt gehören.It is known in the intake system by means of an injection system in an internal combustion engine according to the Otto principle, an air / fuel mixture for subsequent combustion in generate the combustion chambers and regulate the engine power requirement. The intake tract has, in particular, a throttle element with a single-flow or double-flow throttle valve part and a throttle valve-equipped switching intake manifold and / or an air flow meter, for example in the form of a dynamic pressure flow meter for the intake tract.

Ein Teil dieser Aggregate sind deren Gehäuse. Die Gehäuse sind im Motorraum, beispielsweise eines Kraftfahrzeuges, wie eines Personenkraftwagens oder eines Lieferwagens, eingebaut und entsprechend sehr oft mechanischen Beanspruchungen, vor allem aber grossen Temperaturunterschieden, ausgesetzt. Bei Kaltstart kann der ganze Motor und Motorraum auf Temperaturen von bis zu -40° C heruntergekühlt sein und bei hohen Aussentemperaturen und voller Last oder nach dem Abstellen des Motors kann die Temperatur von Anbauteilen am Motor, wie der Einspritzanlage, bei 140° C liegen. Deshalb werden die Gehäuse der Drosselorgane, beispielsweise in Gussverfahren, wie einem Druckgussverfahren, bevorzugt aus Aluminiumlegierungen, hergestellt. Die Drosselklappen selbst werden aus Messing oder Aluminiumlegierungen gefertigt. Die Drosselklappen aus Aluminiumlegierungen werden in der Regel aus Wälzprodukten, wie Bändern oder Blechen ausgestanzt und nachbearbeitet.Part of these units are their housings. The housings are in the engine compartment, for example a motor vehicle, such as a passenger car or a delivery van and correspondingly very often mechanical loads, but above all large ones Temperature differences, exposed. In the event of a cold start, the entire engine and engine compartment be cooled down to temperatures down to -40 ° C and at high outside temperatures and at full load or after the engine has been switched off, the temperature of add-on parts can on the engine, like the injection system, are at 140 ° C. Therefore, the housing of the Throttle bodies, for example in casting processes, such as a die casting process, are preferred made of aluminum alloys. The throttle valves themselves are made of brass or Made of aluminum alloys. The throttle valves made of aluminum alloy are in generally stamped out of post-processing products such as strips or sheets and reworked.

Die Drosselklappen sind derart ausgelegt, dass sie im Normalbetrieb leichtgängig um ihre Achse drehend im Gehäuse des Drosselorgans gelagert sind. Beispielsweise unter extremen Bedingungen neigen die Drosselklappen im Drosselorgan zum Verklemmen und führen zu unsauberem Motorlauf, zu gestörter Gemischzufuhr oder zum Absterben des Motors. Durch das Verklemmen können auch die Drosselklappen und das Gehäuse Schaden nehmen und eine zuverlässige Funktion ist nicht mehr gegeben. Dies war schon immer störend, mit der Verbreitung der katalytischen Nachverbrennung und der Steuerung der Gemischbildung mittels der abgasseitig angeordneten Lambda-Sonde sind jedoch jegliche Störfaktoren, ausgehend von Hemmenden Drosselklappen, nicht mehr zu tolerieren. Deshalb wurde versucht das Problem über Schnittkanten mit Spezialgeometrie an der Drosselkappe zu lösen. Diese Lösung ist durch die feinmechanisch ausgeführte spanabhebende Metallbearbeitung aufwendig und führt nicht immer zu den gewünschten Ergebnissen. D.h. nach wie vor ist eine erhebliche Ausschussrate an mangelhaften Drosselklappenanordnungen, welche die Qualitätsanforderungen der Automobilhersteller nicht erfüllen, zu beobachten.The throttle valves are designed in such a way that they move smoothly around their in normal operation Axis are rotatably mounted in the throttle body. For example, under extreme Conditions, the throttle valves in the throttle element tend to jam and lead to improper engine running, faulty fuel supply or engine stall. By jamming can also damage the throttle valves and the housing and there is no longer any reliable function. This has always been distracting with the Dissemination of catalytic afterburning and control of mixture formation by means of However, the lambda probe arranged on the exhaust gas side are any interference factors of inhibiting throttle valves, no longer tolerable. That is why it was tried Solve problem with cut edges with special geometry on the throttle cap. This solution is complex due to the precision mechanical machining of metal and does not always lead to the desired results. I.e. is still a significant one Reject rate on defective throttle valve arrangements, which the quality requirements the automaker did not meet to watch.

Es waren deshalb Drosselklappenanordnungen zu schaffen, welche die genannten Nachteile nicht mehr aufweisen und auf leichte Art und Weise hergestellt und eingebaut werden können.It was therefore necessary to create throttle valve arrangements which have the disadvantages mentioned no longer have and can be easily manufactured and installed.

Erfindungsgemäss wird dies dadurch erreicht, dass das Leichtmetall des Gehäuses (2) des Drosselklappenteils und das Leichtmetall der Drosselklappe (1) einen vergleichbaren thermischen Längenausdehnungskoeffizienten aufweisen, wobei der thermische Längenausdehnungskoeffizient des Leichtmetalls des Gehäuses (2) und der thermische Längenausdehnungskoeffizient des Leichtmetalls der Drosselklappe (1), bezogen auf den kleineren thermischen Längenausdehnungskoeffizienten, sich um höchstens 5 % unterscheiden.According to the invention, this is achieved in that the light metal of the housing (2) of the Throttle valve part and the light metal of the throttle valve (1) a comparable thermal Have coefficient of linear expansion, the thermal coefficient of linear expansion of the light metal of the housing (2) and the thermal coefficient of linear expansion of the light metal of the throttle valve (1), based on the smaller thermal Coefficients of linear expansion differ by a maximum of 5%.

Zweckmässig unterscheiden sich die thermischen Längenausdehnungskoeffizienten (linearer Wärmeausdehnungskoeffizient) um höchstens 4%, bevorzugt um höchstens 2%.The thermal expansion coefficients (linear Thermal expansion coefficient) by at most 4%, preferably by at most 2%.

Auch zweckmässig sind Drosselklappenanordnungen einer Verbrennungskraftmaschine bei denen sich die thermischen Längenausdehnungskoeffizienten der Leichtmetalle des Gehäuses des Drosselklappenteils und der Drosselklappe im Temperaturintervall von 20° C bis 100° C und insbesondere von -40° C bis 140° C, um höchstens 5%, vorteilhaft um höchstens 4% und insbesondere um höchstens 2%, unterscheiden.Throttle valve arrangements of an internal combustion engine are also useful which are the thermal expansion coefficients of the light metals of the housing of the throttle valve part and the throttle valve in the temperature range from 20 ° C to 100 ° C and in particular from -40 ° C to 140 ° C, by at most 5%, advantageously by at most 4% and in particular by a maximum of 2%.

Ganz besonders bevorzugt sind Drosselklappenanordnungen an Verbrennungskraftmaschinen nach vorliegender Erfindung, bei denen die thermischen Längenausdehnungskoeffizienten der Leichtmetalle des Gehäuses des Drosselklappenteils und/oder der Drosselklappe beispielsweise in einem Bereich von 21,7 x 10-6/°K bis 22,9 x 10-6/°K, vorzugsweise von 22,0 x 10-6/°K bis 22,6 x 10-6/°K und insbesondere bei 22,5 x 10-6/°K, jeweils bei 20 bis 100 ° C, liegen.Throttle valve arrangements on internal combustion engines according to the present invention are very particularly preferred, in which the thermal linear expansion coefficients of the light metals of the housing of the throttle valve part and / or the throttle valve are, for example, in a range from 21.7 x 10 -6 / ° K to 22.9 x 10 -6 / ° K, preferably from 22.0 x 10 -6 / ° K to 22.6 x 10 -6 / ° K and in particular at 22.5 x 10 -6 / ° K, in each case at 20 to 100 ° C .

Zu den Leichtmetallen gehören beispielsweise das Magnesium und insbesondere dessen Legierungen. Für vorliegenden Zweck, werden jedoch bevorzugt Aluminium und dessen Legierungen eingesetzt. Light metals include, for example, magnesium and, in particular, its alloys. For the present purpose, however, aluminum and its alloys are preferred used.

Für die erfindungsgemässe Drosselklappenanordnung einer Verbrennungskraftmaschine ist das Gehäuse des Drosselklappenteils beispielsweise aus einer Legierung aus den Reihen AlSi, AlSiMg oder AlSiCu. Bevorzugt werden die Legierungen aus den Reihen AlSi und AlSiCu.For the throttle valve arrangement of an internal combustion engine according to the invention the housing of the throttle valve part, for example made of an alloy from the AlSi series, AlSiMg or AlSiCu. The alloys from the AlSi and AlSiCu series are preferred.

Das Gehäuse des Drosselklappenteils kann beispielsweise durch Giessen hergestellt werden, wobei Druckgussverfahren bevorzugt werden. Beim Druckgussverfahren wird das Leichtmetall schmelzflüssig oder bei thixotropem Verhalten der Legierung halbstarr, durch äussere Druckbeaufschlagung, in eine Form gepresst. Nach dem Erstarren des Metalls wird die Form geöffnet und das rohe Gehäuseteil kann der Form entnommen werden. Nach Bedarf kann der Gehäuseteil nachbearbeitet werden, wie durch Entgraten, Schleifen, Polieren und es können Bohrungen angebracht und Lagerbuchsen und dergl. eingesetzt, Gewinde eingeschnitten und die Oberflächen vergütet, wie galvanisch Schichten auf den Oberflächen abgeschieden oder die Oberflächen anodisch oxidiert werden usw. Entsprechend besteht das Gehäuse an sich aus dem Leichtmetall, während Oberflächenschichten und/oder Einbau- oder Anbauteile aus einem anderen Materialien bestehen können.The housing of the throttle valve part can be produced, for example, by casting, die casting processes are preferred. The light metal is used in the die casting process molten or if the alloy is thixotropic, semi-rigid, due to external Pressurization pressed into a mold. After the metal solidifies, the shape opened and the raw housing part can be removed from the mold. If necessary, the Housing part can be reworked, such as by deburring, grinding, polishing and it can Drilled holes and bushings and the like. Inserted, thread cut and the surfaces are tempered like galvanic layers or deposited on the surfaces the surfaces are anodized, etc. Accordingly, the housing itself from the light metal, while surface layers and / or built-in or add-on parts another material can exist.

Für die erfindungsgemässe Drosselklappenanordnung einer Verbrennungskraftmaschine ist die Drosselklappe beispielsweise aus einer Legierung der Reihen AlSi, AlSiMg oder AlSiCu. Bevorzugt sind Legierungen der Reihen AlSiMg und AlSiCu.For the throttle valve arrangement of an internal combustion engine according to the invention the throttle valve, for example, made of an alloy from the AlSi, AlSiMg or AlSiCu series. Alloys from the AlSiMg and AlSiCu series are preferred.

Für die Drosselklappen können beispielsweise Barren aus den genannten Legierungen, beispielsweise durch Walzen, zu Bändern oder Blechen verarbeitet werden und aus den Bändern oder Blechen können Rohlinge für die Drosselklappen ausgestanzt werden. Die Legierungen können auch beispielsweise in einem Druckgussverfahren zu Rohlingen von Drosselklappen verarbeitet werden. Die Rohlinge können nach dem Anbringen der Lagerungselemente, wie Achsen oder Lagerbuchsen und Stellorganen, direkt verbaut werden oder die Rohlinge können nachbearbeitet und einer Oberflächenbehandlung, wie einer Oberflächenvergütung, Politur, Verchromung und/oder anderer oder weiterer galvanischer Behandlung oder anodischer Oxidation unterzogen werden. Je nach Herstellungsverfahren ist ein Entgraten, Feindrehen oder Schleifen zusätzlich erforderlich. Diese nachbearbeiteten Drosselklappenrohlinge werden, wie bereits erwähnt, durch Anbringen der Lagerungselemente, wie Achsen oder Buchsen und Stellorganen, zur weiteren Verwendung fertiggestellt. Die Drosselklappen an sich bestehen aus dem Leichtmetall, während z.B. Oberflächenschichten und Anbauteile aus anderen Materialien bestehen können. For the throttle valves, for example, ingots made of the alloys mentioned, for example processed by rolling, into strips or sheets and from the strips blanks for the throttle valves can be punched out or sheet metal. The alloys can also be used, for example, in a die-casting process to produce blank throttle bodies are processed. The blanks can after attaching the storage elements, such as Axles or bearing bushes and actuators can be installed directly or the blanks can reworked and a surface treatment, such as surface treatment, polishing, Chromium plating and / or other or further galvanic treatment or anodic Undergo oxidation. Depending on the manufacturing process, deburring, fine turning or grinding additionally required. These reworked throttle body blanks are as already mentioned, by attaching the bearing elements, such as axles or bushings and actuators, ready for further use. The throttle valves themselves consist of the light metal, while e.g. Surface layers and attachments from others Materials can exist.

Besonders bevorzugt sind Drosselklappenanordnungen einer Verbrennungskraftmaschine nach vorliegender Erfindung, bei denen das Gehäuse des Drosselklappenteils und die Drosselklappe aus der gleichen Legierung sind und die Legierung beispielsweise aus den Reihen von AlSi, AlSiMg oder AlSiCu ausgewählt sind.Throttle valve arrangements of an internal combustion engine are particularly preferred according to the present invention, in which the housing of the throttle valve part and the throttle valve are made of the same alloy and the alloy from the series, for example selected by AlSi, AlSiMg or AlSiCu.

Die Festigkeitswerte der genannten Leichtmetalle und dabei der Aluminiumlegierungen, können beispielsweise wie folgt charakterisiert werden: Festigkeit Rm minimal 300 MPa und Rp0.2 minimal 260MPa.The strength values of the mentioned light metals and thereby the aluminum alloys can can be characterized, for example, as follows: minimum strength Rm 300 MPa and Rp0.2 minimum 260MPa.

Die vorliegende Drosselklappenanordnung einer Verbrennungskraftmaschine kann ein einflutiges Drosselklappenteil mit einer Drosselklappe oder ein zweiflutiges Drosselklappenteil mit zwei Drosselklappen sein. Die Drosselklappe kann im weiteren einen Drosselklappensteller zur Leerlaufregelung aufweisen. Die Drosselklappe kann auch mit einem integrierten Leerlaufsteller ausgerüstet sein. Weitere Ausführungsformen sind Drosselklappen mit Stellmotor oder Drosselklappen enthaltend einen Drosselklappensteller zur Leerlaufregelung und/oder einen Drosselklappenschalter, der in der Regel an einem Drosselklappenstutzen befestigt ist und durch die Drosselklappenwelle betätigt wird, und z.B. zur Leerlaufregelung, Schubabschaltung oder Zündwinkelverstellung eingesetzt wird. Die Drosselklappe kann einen Drosselklappen-Schliessdämpfer aufweisen. Der Drosselklappenstutzen dient zur Aufnahme der Drosselklappe, sowie z.B. der Federpakete zum Rückstellen der Drosselklappe, eines Drosselklappenpotentiometers, des Gasgestänges und des Leerlaufstellers.The present throttle valve assembly of an internal combustion engine can be a single-flow Throttle valve part with a throttle valve or a double-flow throttle valve part with two throttle bodies. The throttle valve can also be a throttle valve actuator for idle control. The throttle valve can also be equipped with an integrated idle actuator be equipped. Further embodiments are throttle valves with a servomotor or throttle valves containing a throttle valve actuator for idle control and / or a throttle switch, which is usually attached to a throttle body and operated by the throttle shaft, and e.g. for idle control, overrun cut-off or ignition angle adjustment is used. The throttle valve can be a throttle valve damper exhibit. The throttle valve connector serves to accommodate the Throttle valve, e.g. the spring assemblies for resetting the throttle valve, a throttle valve potentiometer, the throttle linkage and the idle actuator.

Im Ansaugtrakt kann die Drosselklappenanordnung auch ein Schaltsaugrohr mit einer, zwei oder drei Drosselklappen darstellen. Schaltsaugrohre dienen dazu, die Saugrohrlängen zu variieren und verschiedene Saugrohrarme zusammenzufassen. Das Schaltsaugrohr und die darin angeordneten Drosselklappen können aus den genannten Leichtmetallen sein, deren Zahlenwerte ihrer thermischen Längenausdehnungskoeffizienten sich um höchstens 5%, zweckmässig um höchstens 4 % und vorteilhaft um höchstens 2 %, unterscheiden. Weitere Bevorzugungen lassen sich den Angaben zum Drosselklappengehäuse und zur Drosselklappe entnehmen.In the intake tract, the throttle valve arrangement can also have a switching intake manifold with one or two or three throttle valves. Switching intake pipes serve to close the intake pipe lengths vary and summarize different intake manifold arms. The switching intake manifold and the Throttle valves arranged therein can be made of the light metals mentioned, whose Numerical values of their thermal expansion coefficients do not exceed 5%, appropriately differentiate by at most 4% and advantageously by at most 2%. Further Preferences can be found in the information on the throttle body and throttle valve remove.

Im Ansaugtrakt kann zur Bemessung der Luftmenge eine Drosselklappenanordnung in Form beispielsweise eines Luftmassenmessers oder eines Luftmengenmessers vorhanden sein. Der Luftmengenmesser kann nach dem Prinzip eines Staudruck-Durchflussmessers arbeiten. Der Staudruck-Durchflussmesser kann eine Stauklappe enthalten oder kann nach dem Schwebekörperprinzip arbeiten und eine Stauscheibe enthalten. Das Gehäuse der Luftmengenmesser und der Stauklappe oder der Stauscheibe können aus den genannten Leichtmetallen sein, deren Zahlenwerte ihrer thermischen Längenausdehnungskoeffizienten sich um höchstens 5 %, zweckmässig um höchstens 4 % und vorteilhaft um höchstens 2 %, unterscheiden. Weitere Bevorzugungen lassen sich den Angaben zum Drosselklappengehäuse und zur Drosselklappe entnehmen.In the intake tract, a throttle valve arrangement can be used to measure the air volume for example, an air mass meter or an air flow meter. Of the Air flow meter can work on the principle of a dynamic pressure flow meter. Of the Back pressure flow meter can contain a damper or can operate on the float principle work and contain a baffle plate. The housing of the air flow meter and the baffle flap or the baffle plate can be made of the aforementioned light metals, the Numerical values of their thermal expansion coefficients do not exceed 5%, appropriately differentiate by at most 4% and advantageously by at most 2%. Further Preferences can be found in the information on the throttle body and throttle valve remove.

Vorliegende Erfindung findet Verwendung bei der Drosselklappenanordnung einer Verbrennungskraftmaschine mit innerer Verbrennung nach dem Otto-Prinzip, enthaltend im Ansaugtrakt ein Drosselklappenteil aus Gehäuse und wenigstens einer Drosselklappe, wobei das Gehäuse ein Gussteil aus einem Leichtmetall ist und die Drosselklappe aus einem Leichtmetall ist, an Einspritzsystemen mit mechanischer oder elektronischer Steuerung.The present invention finds use in the throttle valve assembly of an internal combustion engine with internal combustion based on the Otto principle, contained in the intake system a throttle valve part from the housing and at least one throttle valve, the Housing is a casting made of a light metal and the throttle valve from one Light metal is on injection systems with mechanical or electronic control.

Die Figur 1 zeigt beispielhaft eine Drosselklappenanordnung an einer Verbrennungskraftmaschine. Eine Drosselklappe (1) ist von einem Gehäuse des Drosselklappenteils (2) umgeben. Die Ansaugluft strömt durch den Luftfilter (6) und anschliessend durch den Luftmengenmesser (3). Durch Sensoren werden die Daten für die Ansaugluft-Temperatur und Luftmenge ermittelt und die Signale (4, 5) an ein Steuergerät (7) weitergeleitet. Die Ansaugluft strömt durch den Ansaugtrakt (8), der Kraftstoff wird durch Einspritzdüse (9) eingespritzt und das gebildete Gemisch gelangt in den Verbrennungsraum (10).FIG. 1 shows an example of a throttle valve arrangement on an internal combustion engine. A throttle valve (1) is surrounded by a housing of the throttle valve part (2). The intake air flows through the air filter (6) and then through the air flow meter (3). The data for the intake air temperature and air volume are collected by sensors determined and the signals (4, 5) forwarded to a control unit (7). The intake air flows through the intake tract (8), the fuel is injected through the injection nozzle (9) and that The mixture formed enters the combustion chamber (10).

Claims (11)

Drosselklappenanordnung einer Verbrennungskraftmaschine mit innerer Verbrennung nach dem Otto-Prinzip, enthaltend im Ansaugtrakt (8) ein Drosselklappenteil aus Gehäuse (2) und wenigstens einer Drosselklappe (1), wobei das Gehäuse (2) ein Gussteil, vorwiegend aus einem Leichtmetall, ist und die Drosselklappe (1) vorwiegend aus einem Leichtmetall ist,
dadurch gekennzeichnet, dass
das Leichtmetall des Gehäuses (2) des Drosselklappenteils und das Leichtmetall der Drosselklappe (1) einen vergleichbaren thermischen Längenausdehnungskoeffizienten aufweisen, wobei der thermische Längenausdehnungskoeffizient des Leichtmetalls des Gehäuses (2) und der thermische Längenausdehnungskoeffizient des Leichtmetalls der Drosselklappe (1), bezogen auf den kleineren thermischen Längenausdehnungskoeffizienten, sich um höchstens 5 % unterscheiden.Throttle valve arrangement of an internal combustion engine with internal combustion according to the Otto principle, containing in the intake tract (8) a throttle valve part consisting of a housing (2) and at least one throttle valve (1), the housing (2) being a cast part, predominantly made of a light metal, and the Throttle valve (1) is predominantly made of a light metal,
characterized in that
the light metal of the housing (2) of the throttle valve part and the light metal of the throttle valve (1) have a comparable thermal linear expansion coefficient, the thermal linear expansion coefficient of the light metal of the housing (2) and the thermal linear expansion coefficient of the light metal of the throttle valve (1), based on the smaller one thermal expansion coefficients, differ by a maximum of 5%. Drosselklappenanordnung einer Verbrennungskraftmaschine nach Anspruch 1, dadurch gekennzeichnet, dass sich die thermischen Längenausdehnungskoeffizienten der Leichtmetalle des Gehäuses (2) des Drosselklappenteils und der Drosselklappe (1) um höchstens 4 % und zweckmässig um höchstens 2 %, unterscheiden.Throttle valve arrangement of an internal combustion engine according to claim 1, characterized characterized in that the thermal expansion coefficient of the Light metals of the housing (2) of the throttle valve part and the throttle valve (1) around at most 4% and appropriately by at most 2%. Drosselklappenanordnung einer Verbrennungskraftmaschine nach Anspruch 1, dadurch gekennzeichnet, dass sich die thermischen Längenausdehnungskoeffizienten der Leichtmetalle des Gehäuses (2) des Drosselklappenteils und der Drosselklappe (1) im Temperaturintervall von 20 bis 100° C und vorzugsweise von -40° C bis 140° C, um höchstens 5 %, zweckmässig um höchstens 4 % und vorteilhaft um höchstens 2 %, unterscheiden.Throttle valve arrangement of an internal combustion engine according to claim 1, characterized characterized in that the thermal expansion coefficient of the Light metals of the housing (2) of the throttle valve part and the throttle valve (1) in Temperature range from 20 to 100 ° C, and preferably from -40 ° C to 140 ° C to not more than 5%, expediently not more than 4% and advantageously not more than 2%, differentiate. Drosselklappenanordnung einer Verbrennungskraftmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die thermischen Längenausdehnungskoeffizienten der Leichtmetalle des Gehäuses (2) des Drosselklappenteils und/oder der Drosselklappe (1) in einem Bereich von 21,7 x 10-6/°K bis 22,9 x 10-6/°K, vorteilhaft von 22,0 x 10-6/°K bis 22,6 x 10-6/°K und insbesondere bei 22,5 x 10-6/°K, liegen.Throttle valve arrangement of an internal combustion engine according to claim 1, characterized in that the thermal expansion coefficients of the light metals of the housing (2) of the throttle valve part and / or the throttle valve (1) in a range from 21.7 x 10 -6 / ° K to 22.9 x 10 -6 / ° K, advantageously from 22.0 x 10 -6 / ° K to 22.6 x 10 -6 / ° K and in particular 22.5 x 10 -6 / ° K. Drosselklappenanordnung einer Verbrennungskraftmaschine nach Anspruch 1, dadurch gekennzeichnet, dass als Leichtmetall Aluminiumlegierungen eingesetzt werden. Throttle valve arrangement of an internal combustion engine according to claim 1, characterized characterized in that aluminum alloys are used as the light metal. Drosselklappenanordnung einer Verbrennungskraftmaschine nach Anspruch 1, dadurch gekennzeichnet, dass das Gehäuse (2) des Drosselklappenteils aus einer Legierung aus der Reihe AlSi, AlSiMg oder AlSiCu ist.Throttle valve arrangement of an internal combustion engine according to claim 1, characterized characterized in that the housing (2) of the throttle valve part made of an alloy of the series AlSi, AlSiMg or AlSiCu. Drosselklappenanordnung einer Verbrennungskraftmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die Drosselklappe (1) aus einer Legierung aus der Reihe AlSi, AlSiMg oder AlSiCu ist.Throttle valve arrangement of an internal combustion engine according to claim 1, characterized characterized in that the throttle valve (1) made of an alloy from the series AlSi, AlSiMg or AlSiCu is. Drosselklappenanordnung einer Verbrennungskraftmaschine nach Anspruch 1, dadurch gekennzeichnet, dass das Gehäuse (2) des Drosselklappenteils und die Drosselklappe (1) aus der gleichen Legierung aus der Reihe AlSi, AlSiMg oder AlSiCu sind.Throttle valve arrangement of an internal combustion engine according to claim 1, characterized characterized in that the housing (2) of the throttle valve part and the throttle valve (1) are made of the same alloy from the AlSi, AlSiMg or AlSiCu series. Drosselklappenanordnung einer Verbrennungskraftmaschine nach Anspruch 1, dadurch gekennzeichnet, dass das Drosselklappenteil ein einflutiges Drosselklappenteil mit einer Drosselklappe oder ein zweiflutiges Drosselklappenteil mit zwei Drosselklappen ist und/oder dass das Drosselklappenteil ein Schaltsaugrohr mit einer, zwei oder drei Drosselklappen ist.Throttle valve arrangement of an internal combustion engine according to claim 1, characterized characterized in that the throttle valve part is a single-flow throttle valve part with a Throttle valve or a double-flow throttle valve part with two throttle valves and / or that the throttle valve part is a switching intake manifold with one, two or three Throttle valve is. Drosselklappenanordnung einer Verbrennungskraftmaschine nach Anspruch 1, dadurch gekennzeichnet, dass zur Bemessung der Luftmenge die Drosselklappenanordnung als Luftmengenmesser einen Staudruck-Durchflussmesser mit einem Gehäuse und einer Stauklappe oder einer Stauscheibe enthält und das Gehäuse des Luftmengenmesser und die Stauklappe oder die Stäuscheibe aus Leichtmetallen sind, deren Zahlenwerte des zugehörigen thermischen Längenausdehnungskoeffizienten sich um höchstens 5%, zweckmässig um höchstens 4 % und vorteilhaft um höchstens 2 %, unterscheiden.Throttle valve arrangement of an internal combustion engine according to claim 1, characterized characterized in that the throttle valve arrangement as a Air flow meter a dynamic pressure flow meter with a housing and a Contains damper or a baffle plate and the housing of the air flow meter and the damper or baffle plate are made of light metals, the numerical values of which associated thermal expansion coefficients are at most 5%, appropriately differentiate by at most 4% and advantageously by at most 2%. Verwendung der Drosselklappenanordnung einer Verbrennungskraftmaschine mit innerer Verbrennung nach dem Otto-Prinzip, enthaltend im Ansaugtrakt ein Drosselklappenteil aus Gehäuse und wenigstens einer Drosselklappe, wobei das Gehäuse ein Gussteil aus einer Leichtmetall ist und die Drosselklappe aus einem Leichtmetall ist, an Einspritzsystemen mit mechanischer oder elektronischer Steuerung.Use of the throttle valve assembly of an internal combustion engine Combustion according to the Otto principle, containing a throttle valve part in the intake tract from the housing and at least one throttle valve, the housing a Casting is made of a light metal and the throttle valve is made of a light metal Injection systems with mechanical or electronic control.
EP96810757A 1996-11-08 1996-11-08 Throttle valve arrangement for an internal combustion engine Withdrawn EP0841477A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP96810757A EP0841477A1 (en) 1996-11-08 1996-11-08 Throttle valve arrangement for an internal combustion engine
EP97944676A EP0937197B1 (en) 1996-11-08 1997-10-27 Throttle valve arrangement for an internal combustion engine
DE59707234T DE59707234D1 (en) 1996-11-08 1997-10-27 THROTTLE VALVE ARRANGEMENT OF AN INTERNAL COMBUSTION ENGINE
ES97944676T ES2174295T3 (en) 1996-11-08 1997-10-27 STRANGULATION GATE PROVISION OF AN INTERNAL COMBUSTION ENGINE.
PCT/CH1997/000407 WO1998021460A1 (en) 1996-11-08 1997-10-27 Throttle valve arrangement for an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96810757A EP0841477A1 (en) 1996-11-08 1996-11-08 Throttle valve arrangement for an internal combustion engine

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EP0841477A1 true EP0841477A1 (en) 1998-05-13

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EP97944676A Expired - Lifetime EP0937197B1 (en) 1996-11-08 1997-10-27 Throttle valve arrangement for an internal combustion engine

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006039827A1 (en) * 2006-08-25 2008-02-28 Mahle International Gmbh Switching device for controlling a gas flow
DE102012009878B3 (en) * 2012-05-18 2013-06-13 Gerhard Kirstein Internal combustion engine, has control device automatically adjusting throttle valve-base angle based on predetermined throttle gap-based-measuring signal parameter such that predetermined base-rotational speed of engine is reached
DE102012000628A1 (en) * 2012-01-14 2013-08-01 Volkswagen Aktiengesellschaft Regulating unit for internal combustion engine of motor car, has adjusting portion and seat made of materials with different coefficients of thermal expansion, so that dimension of gaps are adjusted in different temperature ranges

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6226330A (en) * 1985-07-25 1987-02-04 Suzuki Motor Co Ltd Throttle valve of carburetor
JPH0261331A (en) * 1988-08-26 1990-03-01 Hitachi Ltd Throttle valve builtup body
DE4129570A1 (en) * 1991-09-06 1993-03-11 Pierburg Gmbh Modular flap valve for IC engine intake - has shaft and connecting webs, positioned to be aligned parallel to flow direction
DE4413145A1 (en) * 1994-04-15 1995-10-19 Daimler Benz Ag Throttle valve arrangement
DE19504256A1 (en) * 1995-02-09 1996-08-14 Montaplast Gmbh Suction air intake pipe for fuel combustion motors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6226330A (en) * 1985-07-25 1987-02-04 Suzuki Motor Co Ltd Throttle valve of carburetor
JPH0261331A (en) * 1988-08-26 1990-03-01 Hitachi Ltd Throttle valve builtup body
DE4129570A1 (en) * 1991-09-06 1993-03-11 Pierburg Gmbh Modular flap valve for IC engine intake - has shaft and connecting webs, positioned to be aligned parallel to flow direction
DE4413145A1 (en) * 1994-04-15 1995-10-19 Daimler Benz Ag Throttle valve arrangement
DE19504256A1 (en) * 1995-02-09 1996-08-14 Montaplast Gmbh Suction air intake pipe for fuel combustion motors

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 11, no. 210 (M - 604) 8 July 1987 (1987-07-08) *
PATENT ABSTRACTS OF JAPAN vol. 14, no. 235 (M - 0975) 18 May 1990 (1990-05-18) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006039827A1 (en) * 2006-08-25 2008-02-28 Mahle International Gmbh Switching device for controlling a gas flow
US8191861B2 (en) 2006-08-25 2012-06-05 Mahle International Gmbh Control valve for controlling a gas flow
DE102012000628A1 (en) * 2012-01-14 2013-08-01 Volkswagen Aktiengesellschaft Regulating unit for internal combustion engine of motor car, has adjusting portion and seat made of materials with different coefficients of thermal expansion, so that dimension of gaps are adjusted in different temperature ranges
DE102012009878B3 (en) * 2012-05-18 2013-06-13 Gerhard Kirstein Internal combustion engine, has control device automatically adjusting throttle valve-base angle based on predetermined throttle gap-based-measuring signal parameter such that predetermined base-rotational speed of engine is reached

Also Published As

Publication number Publication date
WO1998021460A1 (en) 1998-05-22
EP0937197A1 (en) 1999-08-25
ES2174295T3 (en) 2002-11-01
EP0937197B1 (en) 2002-05-08
DE59707234D1 (en) 2002-06-13

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