DE202006018186U1 - Control shaft in an internal combustion engine - Google Patents
Control shaft in an internal combustion engine Download PDFInfo
- Publication number
- DE202006018186U1 DE202006018186U1 DE202006018186U DE202006018186U DE202006018186U1 DE 202006018186 U1 DE202006018186 U1 DE 202006018186U1 DE 202006018186 U DE202006018186 U DE 202006018186U DE 202006018186 U DE202006018186 U DE 202006018186U DE 202006018186 U1 DE202006018186 U1 DE 202006018186U1
- Authority
- DE
- Germany
- Prior art keywords
- control shaft
- material removal
- holes
- shaft
- internal combustion
- 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.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
- F02B31/04—Modifying induction systems for imparting a rotation to the charge in the cylinder by means within the induction channel, e.g. deflectors
- F02B31/06—Movable means, e.g. butterfly valves
-
- 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
- F02D9/106—Sealing of the valve shaft in the housing, e.g. details of the bearings
-
- 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
- F02D9/108—Plastics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/221—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
-
- 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
- F02D9/1025—Details of the flap the rotation axis of the flap being off-set from the flap center axis
-
- 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
- F02D9/109—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps having two or more flaps
- F02D9/1095—Rotating on a common axis, e.g. having a common shaft
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Manufacturing & Machinery (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
Stellwelle in einer Brennkraftmaschine zur Übertragung einer von einer Antriebseinheit ausgehenden Stellbewegung auf ein Betätigungselement in der Brennkraftmaschine, wobei die Stellwelle (1) in Lagern verstellbar gelagert ist, dadurch gekennzeichnet, dass die Stellwelle (1) als Vollwelle aus Kunststoff gefertigt ist und dass winklig zur Längsachse (3) mindestens eine Materialentfernungsbohrung (5, 6, 7) in die Stellwelle (1) eingebracht ist.actuating shaft in an internal combustion engine for transmission an outgoing from a drive unit actuating movement on actuator in the internal combustion engine, wherein the control shaft (1) adjustable in bearings is stored, characterized in that the actuating shaft (1) as Solid shaft is made of plastic and that is angular to the longitudinal axis (3) at least one material removal hole (5, 6, 7) in the Adjusting shaft (1) is introduced.
Description
Technisches GebietTechnical area
Die Erfindung bezieht sich auf eine Stellwelle in einer Brennkraftmaschine zur Übertragung einer von einer Antriebseinheit ausgehenden Stellbewegung auf ein Betätigungselement in der Brennkraftmaschine nach dem Oberbegriff des Anspruches 1.The The invention relates to a control shaft in an internal combustion engine for transmission an outgoing from a drive unit actuating movement on actuator in the internal combustion engine according to the preamble of claim 1.
Stand der TechnikState of the art
In
der
Aus Gewichts- und Kostengründen werden bevorzugt Stellwellen aus Kunststoff eingesetzt. Hierbei ist jedoch darauf zu achten, dass die auf Torsinn beanspruchte Stellwelle die auf sie wirkenden Kräfte auch über eine lange Betriebsdauer ohne Einschränkung der Funktionsfähigkeit auf nehmen kann. Bei der Dimensionierung der Stellwelle muss zudem den Erfordernissen nach Materialeinsparung und fertigungstechnischen Randbedingungen Rechnung getragen werden, die bei Stellwellen aus Kunststoff eine gleich bleibende Mindestwandstärke erforderlich machen.Out Weight and cost reasons are used preferably adjusting shafts made of plastic. in this connection However, it must be ensured that the actuating shaft, which is subjected to torsion the forces acting on them also over one long service life without restriction the functionality can take on. In the dimensioning of the control shaft must also the requirements for material savings and production engineering Boundary conditions are taken into account in the case of adjusting shafts Plastic make a constant minimum wall thickness required.
Offenbarung der ErfindungDisclosure of the invention
Der Erfindung liegt die Aufgabe zugrunde, eine einfach herzustellende Stellwelle aus Kunststoff anzugeben, die bei einem geringen Materialeinsatz verhältnismäßig hohe Torsionskräfte vertragen kann.Of the Invention is based on the object, a simple to manufacture Specify adjusting shaft made of plastic, which is relatively high at a low material usage torsional can tolerate.
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Anspruches 1 gelöst. Die Unteransprüche geben zweckmäßige Weiterbildungen an.These Task is according to the invention with the Characteristics of claim 1 solved. The dependent claims give expedient further education at.
Die erfindungsgemäße Stellwelle wird in Brennkraftmaschinen zur Übertragung einer von einer Antriebseinheit ausgehenden Stellbewegung auf ein Betätigungselement eingesetzt. Bevorzugte Einsatzgebiete sind Stellwellen in Saugrohranlagen für Mehrzylinder-Hubkolben-Brennkraftmaschinen, über die die Luftzufuhr zu den Brennräumen der Brennkraftmaschine gesteuert wird. Die Stellwelle trägt Drall- bzw. Schwenkklappen, wobei je nach Winkellage der Stellwelle ein unterschiedlich großer Luftstrom und/oder ein Luftstrom mit veränderlichem Drall den Brennräumen zuzuführen ist. Der Antrieb der Stellwelle, die in Lagern drehbar aufgenommen ist, erfolgt über eine Antriebseinheit, beispielsweise einen Elektromotor.The Control shaft according to the invention is used in internal combustion engines for transmission an outgoing from a drive unit actuating movement on actuator used. Preferred applications are adjusting shafts in intake manifolds for multi-cylinder reciprocating internal combustion engines, over the the air supply to the combustion chambers the internal combustion engine is controlled. The control shaft carries swirl or pivoting flaps, depending on the angular position of the actuating shaft different sizes Air flow and / or a stream of air with variable swirl the combustion chambers is to be supplied. The drive of the control shaft, which is rotatably received in bearings, over a drive unit, for example an electric motor.
Die Stellwelle wird als Vollwelle aus Kunststoff hergestellt und weist Materialentfernungsbohrungen auf, die winklig zur Längsachse in die Stellwelle eingebracht sind. Die Materialentfernungsbohrungen reduzieren das Kunststoffvolumen der fertiggestellten Welle und damit auch das Gewicht, wobei die Torsionssteifigkeit nur geringfügig beeinträchtigt ist, da die Bohrungen in einem Winkel quer zur Längsachse eingebracht sind und einen kleineren Durchmesser als die Stellwelle aufweisen, so dass die Bohrungen ringsum von Kunststoffmaterial gleicher Wandstärke umgeben sind.The Stellwelle is made as a solid shaft made of plastic and has Material removal holes at an angle to the longitudinal axis are introduced into the control shaft. The material removal holes reduce the plastic volume of the completed shaft and so that the weight, the torsional stiffness is only slightly impaired, since the holes are introduced at an angle transverse to the longitudinal axis and have a smaller diameter than the actuating shaft, so that the Holes surrounded all around by plastic material of the same wall thickness are.
Die Bohrungen werden zweckmäßig nachträglich im Anschluss an die Herstellung der Stellwelle als Vollwelle gebracht. Möglich ist aber auch, bereits während der Herstellung der Welle, also während des Spritzgießvorganges entsprechende, bohrförmige Ausnehmungen vorzusehen, so dass die Stellwelle bereits mit dem Abschluss des Spritzgießvorganges die entsprechenden Ausnehmungen aufweist. Werden die Ausnehmungen bereits beim Spritzgießvorgang berücksichtigt, so führt dies zu einer besseren und gleichmäßigeren Abkühlung und Aushärtung der Stellwelle und zu einer geringeren Schrumpfung.The Wells are expedient in the later Connected to the production of the control shaft as a solid shaft. Possible but it is already during the production of the shaft, ie during the injection molding process corresponding, drill-shaped Provide recesses so that the actuating shaft already with the Completion of the injection molding process having the corresponding recesses. Be the recesses already during the injection molding process considered, so leads This leads to a better and more uniform cooling and curing of the Control shaft and a lower shrinkage.
Die Bohrungen sind bevorzugt in der Weise in die Stellwelle eingebracht, dass eine zumindest annähernd gleichbleibende Wandstärke in der Stellwelle gegeben ist, so dass eine Torsionsbeanspruchung zu einer gleichmäßigen Spannungsverteilung im Material der Stellwelle führt und Spannungsspitzen vermieden werden. Dennoch kann es angezeigt sein, an be stimmten, ausgewählten Positionen der Stellwelle größere Wandstärken vorzusehen, um einem erhöhten Spannungsverlauf Rechung zu tragen.The Holes are preferably introduced in the manner in the control shaft, that at least approximately consistent wall thickness is given in the control shaft, so that a torsional stress to a uniform stress distribution in the Material of the actuating shaft leads and spikes are avoided. Nevertheless, it may be appropriate at selected, selected Positions of the actuating shaft provide greater wall thicknesses, to an increased Voltage curve to bear.
Die Materialentfernungsbohrungen bzw. die Ausnehmungen sind winklig zur Längsachse in die Stellwelle eingebracht, sie schließen insbesondere mit der Längsachse einen 90°-Winkel ein. Möglich sind aber auch hiervon abweichende Winkel im Winkelbereich zwischen 0° und 90°. Vorteilhafterweise werden eine Vielzahl derartiger Materialentfernungsbohrungen eingebracht, die insbesondere in gleichmäßigem, axialem Abstand zueinander liegen und parallel zueinander verlaufen. Diese Maßnahmen unterstützen und verbessern eine annähernd gleichbleibende Wandstärke in der Stellwelle.The Material removal holes or the recesses are angled to the longitudinal axis introduced into the control shaft, they close in particular with the longitudinal axis a 90 ° angle one. Possible are but also deviating angles in the angular range between 0 ° and 90 °. Advantageously a plurality of such material removal holes introduced, in particular in uniform, axial Distance from each other and run parallel to each other. These activities support and improve an approximate consistent wall thickness in the control shaft.
Gemäß einer weiteren, vorteilhaften Ausführung ist vorgesehen, dass die Materialentfernungsbohrungen als Sacklochbohrungen ausgebildet sind, die an einer Seitenfläche in die Stellwelle eingebracht sind, sich jedoch nicht über den gesamten Durchmesser der Stellwelle erstrecken. Derartige Sacklochbohrungen sind insbesondere in der Weise ausgeführt, dass unmittelbar benachbarte Bohrungen von gegenüberliegenden Seiten in die Stellwelle eingebracht sind, so dass in Längsrichtung der Stellwelle gesehen die Bohrungen jeweils abwechselnd von gegenüberliegenden Seiten sich quer zur Längsachse erstrecken. Hierdurch wird die Torsionssteifigkeit in geringst möglicher Weise eingeschränkt.According to a further advantageous Ausfüh tion is provided that the material removal holes are formed as blind holes, which are introduced on a side surface in the control shaft, but do not extend over the entire diameter of the control shaft. Such blind holes are particularly designed in such a way that immediately adjacent holes are introduced from opposite sides in the control shaft, so that seen in the longitudinal direction of the control shaft, the holes each extend alternately from opposite sides transverse to the longitudinal axis. As a result, the torsional stiffness is limited in the least possible way.
Gemäß einer weiteren, vorteilhaften Ausführung sind an mindestens einer Wandseite bzw. Seitenfläche der Stellwelle Ausnehmungen wie Nuten, Sicken oder dergleichen eingebracht, um eine Querschnittsreduzierung zu erzielen. Derartige Nuten oder Sicken befinden sich vorteilhafterweise in der Mitte zwischen zwei benachbarten Bohrungen auf der Außenseite der Stellwelle, um speziell in diesem Bereich eine Querschnittsreduzierung zu erreichen und eine gleichbleibende Wandstärke einzustellen. Die Sicken und Nuten, die die Wandseite uneben gestalten, besitzen zweckmäßig die gleiche Orientierung wie die Bohrungen durch die Stellwelle.According to one another advantageous embodiment are at least one wall side or side surface of the actuating shaft recesses such as grooves, beads or the like introduced to a cross-sectional reduction to achieve. Such grooves or beads are advantageously in the middle between two adjacent holes on the outside the control shaft, especially in this area a cross-section reduction to achieve and set a consistent wall thickness. The beads and grooves that make the wall side uneven, suitably have the same orientation as the holes through the control shaft.
Als Grundgeometrie für die Stellwelle kommen grundsätzlich unterschiedliche Geometrien in Betracht. Gemäß einer bevorzugten Ausführung ist vorgesehen, dass die Stellwelle eine rechteckförmige Querschnittsgeometrie besitzt, insbesondere eine quadratische Geometrie. Grundsätzlich sind aber auch kreisförmige Querschnitte möglich.When Basic geometry for the control shaft come in principle different geometries into consideration. According to a preferred embodiment, it is provided that the control shaft has a rectangular cross-sectional geometry has, in particular a square geometry. Basically but also circular Cross sections possible.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Weitere Vorteile und zweckmäßig Ausführungen sind den weiteren Ansprächen, der Figurenbeschreibung und den Zeichnungen zu entnehmen. Es zeigen:Further Advantages and functional designs are the other claims, the figure description and the drawings. Show it:
In den Figuren sind gleiche Bauteile mit gleichen Bezugszeichen versehen.In The figures are the same components with the same reference numerals.
Ausführungsform(en) der ErfindungEmbodiment (s) the invention
Bei
der in
Zur
Gewichtsreduzierung bei nicht oder nicht wesentlich eingeschränkter Torsionssteifigkeit
sind in den Abschnitt
Wie
In
In
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202006018186U DE202006018186U1 (en) | 2006-11-29 | 2006-11-29 | Control shaft in an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202006018186U DE202006018186U1 (en) | 2006-11-29 | 2006-11-29 | Control shaft in an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
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DE202006018186U1 true DE202006018186U1 (en) | 2008-04-10 |
Family
ID=39278002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE202006018186U Expired - Lifetime DE202006018186U1 (en) | 2006-11-29 | 2006-11-29 | Control shaft in an internal combustion engine |
Country Status (1)
Country | Link |
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DE (1) | DE202006018186U1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4228334A1 (en) * | 1992-08-26 | 1994-03-03 | Audi Ag | Intake manifold system for a multi-cylinder internal combustion engine |
DE69012150T2 (en) * | 1989-02-21 | 1995-02-02 | Siemens Ag | SHAFT IMPACT PLATE IN ONE PIECE FOR THE INTAKE SYSTEM OF AN INTERNAL COMBUSTION ENGINE. |
DE69904400T2 (en) * | 1998-01-29 | 2003-10-09 | Citroen Sa(Automobiles) | CONTROL DEVICE FOR OPENING AND CLOSING AT LEAST ONE AIR SUPPLY PIPE OF A CYLINDER HEAD OF AN INTERNAL COMBUSTION ENGINE |
DE60117603T2 (en) * | 2000-10-27 | 2006-08-24 | Mann + Hummel Gmbh | Device for closing engine air intake lines |
-
2006
- 2006-11-29 DE DE202006018186U patent/DE202006018186U1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69012150T2 (en) * | 1989-02-21 | 1995-02-02 | Siemens Ag | SHAFT IMPACT PLATE IN ONE PIECE FOR THE INTAKE SYSTEM OF AN INTERNAL COMBUSTION ENGINE. |
DE4228334A1 (en) * | 1992-08-26 | 1994-03-03 | Audi Ag | Intake manifold system for a multi-cylinder internal combustion engine |
DE69904400T2 (en) * | 1998-01-29 | 2003-10-09 | Citroen Sa(Automobiles) | CONTROL DEVICE FOR OPENING AND CLOSING AT LEAST ONE AIR SUPPLY PIPE OF A CYLINDER HEAD OF AN INTERNAL COMBUSTION ENGINE |
DE60117603T2 (en) * | 2000-10-27 | 2006-08-24 | Mann + Hummel Gmbh | Device for closing engine air intake lines |
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Effective date: 20080515 |
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R150 | Utility model maintained after payment of first maintenance fee after three years |
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R151 | Utility model maintained after payment of second maintenance fee after six years |
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