EP1321649A1 - Method for the reduction of deposits on valves in gas suction devices - Google Patents
Method for the reduction of deposits on valves in gas suction devices Download PDFInfo
- Publication number
- EP1321649A1 EP1321649A1 EP01130762A EP01130762A EP1321649A1 EP 1321649 A1 EP1321649 A1 EP 1321649A1 EP 01130762 A EP01130762 A EP 01130762A EP 01130762 A EP01130762 A EP 01130762A EP 1321649 A1 EP1321649 A1 EP 1321649A1
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- EP
- European Patent Office
- Prior art keywords
- flaps
- internal combustion
- flap
- throttle valve
- rotation
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/109—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
- F02D2009/0201—Arrangements; Control features; Details thereof
- F02D2009/0247—Opening the throttle a little on engine shutdown
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
- F02D2009/0201—Arrangements; Control features; Details thereof
- F02D2009/025—Opening the throttle a little during starting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
- F02D2009/0201—Arrangements; Control features; Details thereof
- F02D2009/0277—Fail-safe mechanisms, e.g. with limp-home feature, to close throttle if actuator fails, or if control cable sticks or breaks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D2011/108—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type with means for detecting or resolving a stuck throttle, e.g. when being frozen in a position
Definitions
- the invention relates to a method for reducing deposits on flaps in combustion air intake systems of reciprocating piston internal combustion engines.
- the method can also be used for other ventilation systems be provided with appropriate flaps.
- the throttle valve is the best known of these. It is used to control the air supply a reciprocating internal combustion engine.
- Flaps are also known which produce a swirl or vortex. They are usually in the combustion air intake ducts near the intake gas exchange valves arranged. These swirl or swirl flaps are now the suctioned Air is an additional component of motion across the direction of suction give to a better mixture of the combustion air with the fuel in the To reach the combustion chamber.
- a throttle valve control device is described in DE 199 25 202, at the throttle valve in idle mode or when an internal combustion engine is at a standstill against the known direction of movement from the fully closed Position (0 °) opens slightly. While a throttle valve is in the 0 ° position is started by icing or gluing a combustion engine can make impossible, due to the easy opening of the throttle valve In contrast, according to the invention, starting is made possible.
- the object of the invention was a simple method to develop that is capable of operating reciprocating internal combustion engines deposits in the associated air intake systems reduce that in particular before and after in these air intake systems deposit flaps and thus the function of the reciprocating piston internal combustion engines affect.
- the flap or flaps rotate counter to the operating direction, are deposits that are formed before and / or after the flap or flaps have from the wall or walls of the combustion air intake system scraped off a reciprocating internal combustion engine.
- the or the throttle valve or others Control flaps, which are usually in the range of 0 ° (fully closed) and Move 90 ° (fully open), build up in the combustion air intake system of the closed flap or deposits on small opening angles the flaps the air flow through the reduced cross-section hinder. Now the flap (s) will go against the operating direction for a short time open these deposits are scraped off and either remain the flap or flaps or become small particles with the combustion air flow carried away and burned in the reciprocating piston internal combustion engine.
- a further advantageous embodiment is obtained if the one described above Opening the flap or flaps during and / or shortly after parking or switching off a reciprocating piston internal combustion engine is carried out. Here too can perform the cleaning function without affecting the operation of a reciprocating piston internal combustion engine be performed.
- Fig. 1 is a schematic representation of a section through a reciprocating piston internal combustion engine 1 to see.
- the ambient air required for combustion arrives via an air filter, not shown here, and the intake duct 9 in the intake manifold 4.
- this intake duct 9 is located on a throttle valve shaft 11, the throttle valve 10, the throttle valve shaft 11 is actuated by a throttle valve servomotor 12.
- From the intake manifold 4 the combustion air via a total of 8 channels 5 into those located in engine block 3 Cylinder 2 of the reciprocating internal combustion engine 1 is sucked.
- 2 channels 5 for combustion air supply per cylinder 2 are provided.
- For all four vertebrae control flaps 6 there is a common control Wave 7 provided. This shaft 7 is in turn driven by an actuator 8 operated.
- FIG. 2 shows a section through an intake duct 9 with a throttle valve located therein 10, wherein the throttle valve 10 on a rotatably mounted and by means of of the throttle valve motor 12 (not shown here) movable throttle valve shaft 11 is attached.
- the throttle valve 10 is now in the Movement range shown here between fully closed (0 °) and fully open (90 °) opened in direction of rotation A and closed in the opposite direction of rotation and so the air flow rate of a reciprocating piston internal combustion engine 1 is controlled.
- the throttle valve 10 is contrary to the usual direction of rotation A opened a few degrees and brought into position X to avoid any deposits to remove in the intake manifold 9 before the throttle valve 10.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
Description
Gegenstand der Erfindung ist ein Verfahren zur Reduzierung von Ablagerungen an Klappen in Verbrennungsluftansaugsystemen von Hubkolbenbrennkraftmaschinen. Das Verfahren kann auch für andere lufttechnische Systeme verwendet werden, die mit entsprechenden Klappen versehen sind.The invention relates to a method for reducing deposits on flaps in combustion air intake systems of reciprocating piston internal combustion engines. The method can also be used for other ventilation systems be provided with appropriate flaps.
Bei Hubkolbenbrennkraftmaschinen wird durch die Bewegung des Kolbens im Zylinder vom oberen zum unteren Totpunkt ein Unterdruck erzeugt. Dieser Unterdruck saugt die notwendige Verbrennungsluft durch Gaswechselventile über ein Ansaugsystem ein. Dieses Ansaugsystem enthält eine oder mehrere Klappen zur Steuerung und/oder Regelung und/oder Beeinflussung des Ansaugluftstromes.In reciprocating piston internal combustion engines, the movement of the piston in the cylinder a negative pressure is generated from top to bottom dead center. This negative pressure sucks in the necessary combustion air through gas exchange valves Intake system. This intake system contains one or more flaps for Control and / or regulation and / or influencing the intake air flow.
Hiervon ist die Drosselklappe am bekanntesten. Sie dient zur Steuerung der Luftzufuhr einer Hubkolbenbrennkraftmaschine.The throttle valve is the best known of these. It is used to control the air supply a reciprocating internal combustion engine.
Außerdem bekannt sind Klappen, die einen Drall oder Wirbel erzeugen. Sie sind üblicherweise in den Verbrennungsluftansaugkanälen in der Nähe der Einlaßgaswechselventile angeordnet. Diese Drall- oder Wirbelklappen sollen nun der angesaugten Luft eine zusätzliche Bewegungskomponente quer zur Ansaugrichtung geben, um eine bessere Mischung der Verbrennungsluft mit dem Brennstoff im Verbrennungsraum zu erreichen.Flaps are also known which produce a swirl or vortex. they are usually in the combustion air intake ducts near the intake gas exchange valves arranged. These swirl or swirl flaps are now the suctioned Air is an additional component of motion across the direction of suction give to a better mixture of the combustion air with the fuel in the To reach the combustion chamber.
Stand der Technik sind außerdem Hubkolbenbrennkraftmaschinen mit zwei Einlaßgaswechselventilen pro Zylinder. Bei einigen Ausführungen ist jeweils ein separater Einlaßkanal für jedes Einlaßgaswechselventil vorgesehen. Dabei ist zur Erhöhung der Strömungsgeschwindigkeit der einströmenden Verbrennungsluft und damit zur Erhöhung der Zylinderfüllung bei niedrigen und mittleren Drehzahlen ein Einlaßkanal durch eine Klappe verschlossen. Bei hohen Drehzahlen wird die Kappe geöffnet. Dadurch wird der Ansaugquerschnitt vergrößert, um so den erhöhten Verbrennungsluftbedarf zu decken.State of the art are also reciprocating piston internal combustion engines with two intake gas exchange valves per cylinder. In some versions there is a separate one Inlet channel provided for each intake gas exchange valve. Here is to increase the flow velocity of the incoming combustion air and thus to increase the cylinder charge at low and medium speeds Inlet channel closed by a flap. At high speeds, the cap open. As a result, the intake cross section is enlarged, so the increased To cover combustion air requirements.
Zur Beeinflussung der Strömung der angesaugten Verbrennungsluft sind bei manchen Ausführungen von Hubkolbenbrennkraftmaschinen Resonanzkörper oder ein Verkürzen oder Verlängern der Ansaugwege vorgesehen. Dies ist ein weiteres Einsatzgebiet für Klappen in Verbrennungsluftansaugsystem von Hubkolbenbrennkraftmaschinen.To influence the flow of the intake combustion air some have Versions of reciprocating internal combustion engine resonance bodies or a Shortening or lengthening the suction paths provided. This is another one Area of application for flaps in the combustion air intake system of reciprocating piston internal combustion engines.
Alle oben genannten Klappen arbeiten in der Regel in einem Bereich von 0°, d. h. voll geschlossen bis 90°, d. h. voll geöffnet, wobei Zwischenstellungen möglich sind. Im geschlossenen Zustand soll möglichst wenig Luft an den Klappen vorbeiströmen, weshalb fertigungstechnisch und konstruktiv versucht wird, den Spalt zwischen Klappe und Kanal oder Umrandung so klein wie möglich zu halten. Die angesaugte Verbrennungsluft ist allerdings nicht immer frei von Verschmutzungen. So entstehen während des Betriebes einer Hubkolbenbrennkraftmaschine im Laufe der Zeit Ablagerungen an den Wänden des Ansaugsystems, z. B. verursacht durch Verbrennungsrückstände, die durch die Kurbelgehäuseentlüftung oder ein eventuell vorhandenes Abgasrückführsystem in das Ansaugsystem geleitet werden. Wie bereits oben beschrieben ist der Abstand zwischen dem oder den Klappen und den Wänden des Ansaugsystems sehr klein, so daß die Klappe oder die Klappen während des Betriebes diese Ablagerungen von den Wänden des Ansaugsystems schaben können. Als Resultat bauen sich diese Ablagerungen an der jeweiligen Endposition (0° Position) auf und verringern so den Ansaugquerschnitt. Dies ist insbesondere nachteilig bei kleinen Klappenöffnungswinkeln, da die Ablagerungen den ursprünglich gewünschten Ansaug- oder Durchlaßquerschnitt überproportional einschränken. Auch bei voll geöffneter (90°) Position ergeben sich deutliche Nachteile, da hier der größtmögliche Ansaugquerschnitt gewünscht ist welcher durch die jeweilige Klappenwelle sowieso schon eingeschränkt wird.All of the above flaps usually operate in a range of 0 °, i.e. H. fully closed up to 90 °, d. H. fully open, with intermediate positions possible are. When closed, as little air as possible should flow past the flaps, which is why manufacturing and design attempts are made to make the gap between flap and channel or border as small as possible. The However, the combustion air drawn in is not always free of dirt. So arise during the operation of a reciprocating internal combustion engine in the Over time, deposits on the walls of the intake system, e.g. B. causes through combustion residues caused by the crankcase ventilation or any existing exhaust gas recirculation system is fed into the intake system become. As already described above, the distance between the or the Flaps and the walls of the intake system very small, so that the flap or the flaps during the operation of these deposits from the walls of the Suction system can scrape. As a result, these deposits build up the respective end position (0 ° position) and thus reduce the intake cross-section. This is particularly disadvantageous in the case of small flap opening angles, since the deposits the originally desired intake or passage cross section limit disproportionately. Result even when fully open (90 °) there are significant disadvantages, since the largest possible intake cross-section is desired here is which is already limited anyway by the respective valve shaft becomes.
In der DE 196 38 503 wird ein Verfahren beschrieben bei dem die nachteiligen Wirkungen derartige Ablagerungen auf eine Drosselklappe beseitigt werden. Dabei wird zwischen der sich stromaufwärts und der sich stromabwärts bewegenden Hälfte der Drosselklappe unterschieden. An der sich stromaufwärts bewegenden Hälfte wird der Spalt zum Drosselklappengehäuse auf einen sehr kleinen Abstand (ca. 5 bis 10µm) eingestellt. An der sich stromabwärts bewegenden Hälfte der Drosselklappe hingegen ist der Spalt zum Drosselklappengehäuse ca. 10 mal größer (50 bis 100µm). Weiterhin ist das Drosselklappengehäuse entsprechend der Bewegung der sich stromabwärts öffnenden Hälfte der Drosselklappe bis zu einem Drosselklappenöffnungswinkel von ca. 30° sphärisch ausgebildet, so daß sich der Abstand zwischen Drosselklappe und Drosselklappengehäuse in diesem Bereich nicht vergrößert. Nachteilig ist hier besonders, daß das sphärisch ausgebildete Gehäuse den Ansaugquerschnitt deutlich vermindert. Das Verfahren ist darüber hinaus nur beschrieben für Ablagerungen, die sie stromabseitig der Drosselklappe ansammeln.DE 196 38 503 describes a method in which the disadvantageous Effects of such deposits on a throttle valve can be eliminated. there becomes between the upstream and the downstream Half of the throttle valve differentiated. On the moving upstream Half the gap to the throttle body at a very small distance (approx. 5 to 10 µm). On the downstream half of the Throttle valve, however, is the gap to the throttle valve housing about 10 times larger (50 to 100µm). Furthermore, the throttle body is corresponding the movement of the downstream half of the throttle valve up to a throttle valve opening angle of approximately 30 ° spherical, so that the distance between the throttle valve and the throttle valve housing in this Area not enlarged. The disadvantage here is that the spherical Housing significantly reduced the intake cross section. The procedure is moreover, only described for deposits that are located downstream of the throttle valve accumulate.
In der DE 199 25 202 wird eine Drosselklappensteuervorrichtung beschrieben, bei der die Drosselklappe im Leerlaufbetrieb oder bei Stillstand einer Verbrennungsmaschine entgegen der bekannten Bewegungsrichtung aus der voll geschlossenen Position (0°) etwas öffnet. Während eine Drosselklappe, die sich in der 0° Position befindet, durch Vereisung oder Verkleben ein Starten einer Verbrennungsmaschine unmöglich machen kann, soll durch die leichte Öffnung der Drosselklappe erfindungsgemäß demgegenüber ein Starten ermöglicht werden.A throttle valve control device is described in DE 199 25 202, at the throttle valve in idle mode or when an internal combustion engine is at a standstill against the known direction of movement from the fully closed Position (0 °) opens slightly. While a throttle valve is in the 0 ° position is started by icing or gluing a combustion engine can make impossible, due to the easy opening of the throttle valve In contrast, according to the invention, starting is made possible.
Vor diesem Hintergrund war die Aufgabe der Erfindung, ein einfaches Verfahren zu entwickeln, daß in der Lage ist, die beim Betrieb von Hubkolbenbrennkraftmaschinen in den zugehörigen Luftansaugsystemen entstehenden Ablagerungen zu reduzieren, die sich insbesondere vor und nach in diesen Luftansaugsystemen befindlichen Klappen ablagern und so die Funktion der Hubkolbenbrennkraftmaschinen beeinträchtigen.Against this background, the object of the invention was a simple method to develop that is capable of operating reciprocating internal combustion engines deposits in the associated air intake systems reduce that in particular before and after in these air intake systems deposit flaps and thus the function of the reciprocating piston internal combustion engines affect.
Diese Aufgabe wird durch ein Verfahren mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen sind in den Unteransprüchen bzw. Nebenansprüchen enthalten. This object is achieved by a method with the features of the patent claim 1 solved. Advantageous embodiments are in the subclaims or Supplementary claims included.
Dadurch, daß die Klappe oder die Klappen entgegen der Betriebsrichtung drehen, werden Ablagerungen, die sich vor und/oder nach der oder den Klappen gebildet haben, von der Wandung oder den Wandungen des Verbrennungsluftansaugsystems einer Hubkolbenbrennkraftmaschine abgekratzt. Insbesondere bei mittig gelagerten Klappen, in der Regel der oder den Drosselklappen aber auch anderen Steuerklappen, die sich üblicherweise im Bereich von 0° (voll geschlossen) und 90° (voll geöffnet) bewegen, bauen sich im Verbrennungsluftansaugsystem vor der oder den geschlossenen Klappen Ablagerungen auf, die bei kleinen Öffnungswinkeln der Klappen den Luftdurchsatz durch den so verkleinerten Querschnitt behindern. Wird nun die Klappe(n) für kurze Zeit entgegen der Betriebsrichtung geöffnet werden diese Ablagerungen abgekratzt und verbleiben entweder auf der oder den Klappen oder werden als kleine Teilchen mit der Verbrennungsluftstrom mitgerissen und in der Hubkolbenbrennkraftmaschine verbrannt.Because the flap or flaps rotate counter to the operating direction, are deposits that are formed before and / or after the flap or flaps have from the wall or walls of the combustion air intake system scraped off a reciprocating internal combustion engine. Especially in the middle stored flaps, usually the or the throttle valve or others Control flaps, which are usually in the range of 0 ° (fully closed) and Move 90 ° (fully open), build up in the combustion air intake system of the closed flap or deposits on small opening angles the flaps the air flow through the reduced cross-section hinder. Now the flap (s) will go against the operating direction for a short time open these deposits are scraped off and either remain the flap or flaps or become small particles with the combustion air flow carried away and burned in the reciprocating piston internal combustion engine.
Bei einer vorteilhaften Ausgestaltung der Erfindung wird das oben beschriebene Öffnen der Klappe oder der Klappen in regelmäßigen Abständen wiederholt. So können sich nennenswerte Ablagerungen erst gar nicht aufbauen.In an advantageous embodiment of the invention, the above is described Repeatedly open the flap or flaps. So significant deposits cannot build up at all.
Bei einer weiteren vorteilhaften Ausgestaltung der Erfindung wird das oben beschriebene Öffnen der Klappe oder der Klappen jeweils nach Einschalten der Zündung einer Hubkolbenbrennkraftmaschine und vor dem Anlassen durchgeführt. So kann die Reinigungsfunktion der Klappen ohne größeren Steuerungsaufwand regelmäßig durchgeführt werden.In a further advantageous embodiment of the invention that described above Open the flap or flaps after switching on the Ignition of a reciprocating piston internal combustion engine and carried out before starting. So the cleaning function of the flaps can be done without major control effort be carried out regularly.
Eine weitere vorteilhafte Ausgestaltung ergibt sich, wenn das oben beschriebene Öffnen der Klappe oder der Klappen während und/oder kurz nach dem Abstellen oder Abschalten einer Hubkolbenbrennkraftmaschine durchgeführt wird. Auch hier kann die Reinigungsfunktion ohne Beeinträchtigung des Betriebes einer Hubkolbenbrennkraftmaschine durchgeführt werden.A further advantageous embodiment is obtained if the one described above Opening the flap or flaps during and / or shortly after parking or switching off a reciprocating piston internal combustion engine is carried out. Here too can perform the cleaning function without affecting the operation of a reciprocating piston internal combustion engine be performed.
Im Folgenden wird die Erfindung anhand der Figuren beispielhaft näher erläutert. Es zeigen:
- Fig. 1
- die schematische Darstellung eines Schnittes durch eine Hubkolbenbrennkraftmaschine mit Verbrennungsluftansaugsystem
- Fig. 2
- die schematische Darstellung eines Schnittes durch einen Verbrennungsluftansaugkanal und einer darin befindlichen Drosselklappe, wobei für die Drosselklappe die Verstellbereiche eingezeichnet sind
- Fig. 1
- the schematic representation of a section through a reciprocating piston internal combustion engine with combustion air intake system
- Fig. 2
- the schematic representation of a section through a combustion air intake duct and a throttle valve located therein, the adjustment ranges being shown for the throttle valve
In den Figuren 1 und 2 sind übereinstimmende Bauteile mit den gleichen Bezugszeichen versehen.In FIGS. 1 and 2, identical components have the same reference symbols Mistake.
In Fig. 1 ist die schematische Darstellung eines Schnittes durch eine Hubkolbenbrennkraftmaschine
1 zu sehen. Die zur Verbrennung nötige Umgebungsluft gelangt
über einen hier nicht gezeigten Luftfilter und den Ansaugkanal 9 in den Ansaugkrümmer
4. Im diesem Ansaugkanal 9 befindet sich, auf einer Drosselklappenwelle
11 gelagert, die Drosselklappe 10, wobei die Drosselklappenwelle 11
von einem Drosselklappenstellmotor 12 betätigt wird. Vom Ansaugkrümmer 4 wird
die Verbrennungsluft über insgesamt 8 Kanäle 5 in die im Motorblock 3 befindlichen
Zylinder 2 der Hubkolbenbrennkraftmaschine 1 gesaugt. Hierbei ist zu erkennen,
daß jeweils 2 Kanäle 5 zur Verbrennungsluftversorgung pro Zylinder 2
vorgesehen sind. In jeweils einem dieser zwei Kanäle 5 befindet sich eine Wirbelkontrollklappe
6. Für alle vier Wirbelkontrollklappen 6 ist zur Steuerung eine gemeinsame
Welle 7 vorgesehen. Diese Welle 7 wird wiederum von einem Stellmotor
8 betätigt.In Fig. 1 is a schematic representation of a section through a reciprocating piston internal combustion engine
1 to see. The ambient air required for combustion arrives
via an air filter, not shown here, and the intake duct 9 in the intake manifold
4. In this intake duct 9 is located on a
Figur 2 zeigt einen Schnitt durch einen Ansaugkanal 9 mit darin befindlicher Drosselklappe
10, wobei die Drosselklappe 10 auf einer drehbar gelagerten und mittels
des (hier nicht gezeigten) Drosselklappenverstellmotors 12 bewegbaren Drosselklappenwelle
11 befestigt ist. Üblicherweise wird nun die Drosselklappe 10 in dem
hier gezeigten Bewegungsbereich zwischen voll geschlossen (0°) und voll geöffnet
(90°) in Drehrichtung A geöffnet und in entgegengesetzter Drehrichtung geschlossen
und so der Luftdurchsatz einer Hubkolbenbrennkraftmaschine 1 gesteuert.
Erfindungsgemäß wird die Drosselklappe 10 entgegen der üblichen Drehrichtung
A einige Grad geöffnet und so in Position X gebracht, um so eventuelle Ablagerungen
im Ansaugkrümmer 9 vor der Drosselklappe 10 zu entfernen.Figure 2 shows a section through an intake duct 9 with a throttle valve located therein
10, wherein the
Claims (4)
dadurch gekennzeichnet, daß
die Klappe(n) (6, 10) von 0° ausgehend für kurze Zeit entgegen der Drehrichtung (A) geöffnet werden.Method for controlling one or more flaps (6, 10) in air intake systems (9) of reciprocating piston internal combustion engines (1), the flap (s) (6, 10) generally operating in a range of 0 when operating a reciprocating piston internal combustion engine (1) ° (fully closed) to 90 ° (fully open) operated and opened in one direction of rotation (A) and closed against this direction of rotation
characterized in that
the flap (s) (6, 10) open from 0 ° for a short time against the direction of rotation (A).
dadurch gekennzeichnet, daß
die Öffnung der Klappe(n) (6, 10) entgegen der Drehrichtung (A) periodisch erfolgt.The method of claim 1
characterized in that
the flap (s) (6, 10) opens periodically against the direction of rotation (A).
dadurch gekennzeichnet, daß
die Öffnung der Klappe(n) (6, 10) kurz vor dem Starten einer Hubkolbenbrennkraftmaschine erfolgt.The method of claim 2
characterized in that
the flap (s) (6, 10) are opened shortly before a reciprocating piston internal combustion engine is started.
dadurch gekennzeichnet, daß
das Öffnen der Klappe(n) (6, 10) während und/oder kurz nach dem Abstellen oder Abschalten einer Hubkolbenbrennkraftmaschine erfolgt.The method of claim 2
characterized in that
the flap (s) (6, 10) are opened during and / or shortly after a reciprocating piston internal combustion engine is switched off or switched off.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20010130762 EP1321649B1 (en) | 2001-12-22 | 2001-12-22 | Method for the reduction of deposits on valves in gas suction devices |
| DE50108899T DE50108899D1 (en) | 2001-12-22 | 2001-12-22 | Method for reducing deposits on flaps in gas intake systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20010130762 EP1321649B1 (en) | 2001-12-22 | 2001-12-22 | Method for the reduction of deposits on valves in gas suction devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1321649A1 true EP1321649A1 (en) | 2003-06-25 |
| EP1321649B1 EP1321649B1 (en) | 2006-02-08 |
Family
ID=8179683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20010130762 Expired - Lifetime EP1321649B1 (en) | 2001-12-22 | 2001-12-22 | Method for the reduction of deposits on valves in gas suction devices |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1321649B1 (en) |
| DE (1) | DE50108899D1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008099282A3 (en) * | 2007-02-14 | 2008-11-06 | Toyota Motor Co Ltd | Intake system for internal combustion engine and control method of the same |
| CN104763545A (en) * | 2014-01-06 | 2015-07-08 | 福特环球技术公司 | Method and system for EGR control |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19638503A1 (en) | 1995-09-20 | 1997-03-27 | Hitachi Ltd | Intake choke control device for IC engines |
| DE19925202A1 (en) | 1998-06-11 | 1999-12-16 | Aisan Ind | Throttle control at a motor air intake |
| JP2000087789A (en) * | 1998-09-08 | 2000-03-28 | Daihatsu Motor Co Ltd | Control method for throttle opening in internal combustion engine |
| JP2001073843A (en) * | 1999-09-08 | 2001-03-21 | Toyota Motor Corp | Control device for internal combustion engine |
| JP2001082186A (en) * | 1999-09-08 | 2001-03-27 | Toyota Motor Corp | Throttle control device for internal combustion engine |
-
2001
- 2001-12-22 DE DE50108899T patent/DE50108899D1/en not_active Expired - Lifetime
- 2001-12-22 EP EP20010130762 patent/EP1321649B1/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19638503A1 (en) | 1995-09-20 | 1997-03-27 | Hitachi Ltd | Intake choke control device for IC engines |
| DE19925202A1 (en) | 1998-06-11 | 1999-12-16 | Aisan Ind | Throttle control at a motor air intake |
| JP2000087789A (en) * | 1998-09-08 | 2000-03-28 | Daihatsu Motor Co Ltd | Control method for throttle opening in internal combustion engine |
| JP2001073843A (en) * | 1999-09-08 | 2001-03-21 | Toyota Motor Corp | Control device for internal combustion engine |
| JP2001082186A (en) * | 1999-09-08 | 2001-03-27 | Toyota Motor Corp | Throttle control device for internal combustion engine |
Non-Patent Citations (2)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 2000, no. 06 22 September 2000 (2000-09-22) * |
| PATENT ABSTRACTS OF JAPAN vol. 2000, no. 20 10 July 2001 (2001-07-10) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008099282A3 (en) * | 2007-02-14 | 2008-11-06 | Toyota Motor Co Ltd | Intake system for internal combustion engine and control method of the same |
| US8402941B2 (en) | 2007-02-14 | 2013-03-26 | Toyota Jidosha Kabushiki Kaisha | Intake system for internal combustion engine and control method of the same |
| CN104763545A (en) * | 2014-01-06 | 2015-07-08 | 福特环球技术公司 | Method and system for EGR control |
| CN104763545B (en) * | 2014-01-06 | 2019-10-18 | 福特环球技术公司 | The method and system of EGR control |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50108899D1 (en) | 2006-04-20 |
| EP1321649B1 (en) | 2006-02-08 |
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