DE19634913A1 - Variable-length induction pipe for internal combustion engine - Google Patents

Variable-length induction pipe for internal combustion engine

Info

Publication number
DE19634913A1
DE19634913A1 DE19634913A DE19634913A DE19634913A1 DE 19634913 A1 DE19634913 A1 DE 19634913A1 DE 19634913 A DE19634913 A DE 19634913A DE 19634913 A DE19634913 A DE 19634913A DE 19634913 A1 DE19634913 A1 DE 19634913A1
Authority
DE
Germany
Prior art keywords
switching
intake manifold
toothing
electric motor
manifold according
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Withdrawn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
DE19634913A
Other languages
German (de)
Inventor
Hartmut Witte
Michael Dr Kochs
Karsten Voigtlaender
Manfred Hassel
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.)
Pierburg GmbH
Original Assignee
Pierburg GmbH
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 Pierburg GmbH filed Critical Pierburg GmbH
Priority to DE19634913A priority Critical patent/DE19634913A1/en
Publication of DE19634913A1 publication Critical patent/DE19634913A1/en
Withdrawn legal-status Critical Current

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
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
    • F02B27/0205—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means characterised by the charging effect
    • F02B27/0215—Oscillating pipe charging, i.e. variable intake pipe length charging
    • 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
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
    • F02B27/0226—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means characterised by the means generating the charging effect
    • F02B27/0231—Movable ducts, walls or the like
    • 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
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
    • F02B27/0294—Actuators or controllers therefor; Diagnosis; Calibration
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Characterised By The Charging Evacuation (AREA)

Abstract

The variable geometry air intake system is for an internal combustion engine used in a road vehicle. The air intake (1) has a D-shaped housing with a further projecting part (14) containing an electric motor (9) and a reduction gear train (20,19,10) engaging a gear sector (11) on a U-shaped inlet tube (6). The tube has a bell-shaped mouth (4) whose lip (22) may engage a stop to limit motion in the direction which increases the length of the air passage. The end remote from the bell mouth moves into the bell mouth (3) of a further straight air passage (8).

Description

Die Erfindung betrifft ein Schaltsaugrohr für Brennkraftmaschinen nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a switching intake manifold for internal combustion engines according to the preamble of claim 1.

Derartige Schaltsaugrohre werden nach dem Stand der Technik (DE-GM 89 14 049) z. B. in der Art betrieben, daß ab einer bestimmten überschrittenen Leistungsabgabe der Brennkraftmaschine die Ansaugkanallängen durch Verstellen von Schaltelementen auf kurz umgeschaltet werden, wodurch im oberen Leistungsbereich die Zylinderfüllung durch freies Ansaugen erleichtert und damit die Leistungsabgabe verbessert wird, wobei im unteren Leistungsbereich die Zylinderfüllung durch den Aufladeeffekt der in den langen Ansaugkanälen schwingenden Gassäule verbessert und dadurch das Motordrehmoment erhöht wird.Such switching suction pipes are according to the prior art (DE-GM 89 14 049) z. B. operated in such a way that from a certain exceeded power output the Internal combustion engine the intake duct lengths by adjusting switching elements can be switched briefly, which means the cylinder filling in the upper performance range facilitated by free suction and thus the power output is improved, whereby in the lower power range, the cylinder filling due to the charging effect in the long suction channels vibrating gas column improved and thereby the Engine torque is increased.

Bei diesen Schaltsaugrohren erfolgt die Umschaltung über Antriebe, die in der Regel auf aus den Schaltsaugrohren herausgeführte Wellen mit Hebeln einwirken. Hierdurch entsteht ein großer Bauteileaufwand, die aus den Gehäusen herausgeführten Wellen verursachen Leckage und durch Lagerspiel und Schwingungsbeschleunigungen Geräusche.In the case of these switching suction pipes, the switchover takes place via drives, which are usually open Use levers to move shafts that come out of the intake manifolds. Hereby there is a large expenditure on components, the shafts leading out of the housings cause leakage and due to bearing play and vibration acceleration Sounds.

Hiervon ausgehend liegt der Erfindung daher die Aufgabe zugrunde, Maßnahmen aufzufinden, mit denen bei reduziertem Bauteileaufwand eine geräusch- und leckagefreie Umschaltung der Saugkanallänge erreichbar wird.Proceeding from this, the invention is therefore based on the object of measures to find, with which a reduced noise and leakage-free switching of the suction channel length is achievable.

Diese Aufgabe ist durch die im Kennzeichen des Patentanspruchs 1 angegebenen Merkmale gelöst. Vorteilhafte Weiterbildungen sind mit den Unteransprüchen angegeben.This object is indicated by the characterizing part of claim 1 Features resolved. Advantageous further developments are with the subclaims specified.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend beschrieben.An embodiment of the invention is shown in the drawing and will described below.

Die Zeichnung zeigt:The drawing shows:

Fig. 1 eine schematische Darstellung eines Schaltsaugrohres, Fig. 1 is a schematic representation of a controlled intake,

Fig. 2 eine alternative Ausführung des Schaltsaugrohrs, Fig. 2 shows an alternative embodiment of the Schaltsaugrohrs,

Fig. 3 einen Schnitt durch das Schaltsaugrohr und die Gehäuseeinheit mit Elektromotor, Fig. 3 a section through the variable intake manifold and the housing unit with electric motor,

Fig. 4 ein Diagramm mit Kennlinien der Bestromung. Fig. 4 is a diagram with characteristics of the energization.

Fig. 1 zeigt schematisch ein Schaltsaugrohr 1 für Brennkraftmaschinen mit einem elek­ tromotorisch verstellbaren Schaltelement 2 zur Veränderung der Schaltsaugrohrinnen­ kontur 3 zur Verbesserung der Brennkraftmaschinenleistung in vorgegebenen Drehzahl­ bereichen. Fig. 1 shows schematically a switching intake manifold 1 for internal combustion engines with an elec tromotorically adjustable switching element 2 for changing the inner intake manifold contour 3 to improve the internal combustion engine performance in predetermined speed ranges.

In der gezeigten Ausführung bewirkt die Änderung der Innenkontur 3 eine Änderung der Saugkanallänge zwischen einem Saugkanaleinlaß 4 und einem Zylindereinlaß 5, in dem das Schaltelement 2 mit Rohrbogenabschnitten 6 von Saugkanaleinlässen 7 kurzer Saugkanäle 8 wegbewegt wird, so daß diese freigegeben werden.In the embodiment shown, causes the change of the inner contour 3 is a modification of the Saugkanallänge between a Saugkanaleinlaß 4 and a cylinder inlet 5 in which it is moved away from the switching element 2 with pipe bend portions 6 of Saugkanaleinlässen 7 short suction channels 8 so that they are released.

Ohne den Bereich der Erfindung zu verlassen, könnte auch eine andere Ausführung vor­ liegen, beispielsweise könnte das Schaltelement 2 als Drosselklappe ausgeführt sein und eine Saugrohrvolumenänderung bewirken. Without leaving the scope of the invention, there could also be another embodiment, for example the switching element 2 could be designed as a throttle valve and cause a change in the intake manifold volume.

Erfindungsgemäß ist nun vorgesehene daß ein elektromotorischer Antrieb von einem Elektromotor 9 gebildet ist, der über eine Ritzelverzahnung 10 auf eine am Schaltele­ ment 2 angeordnete Verzahnung 11 einwirkt. Wie in Fig. 1 dargestellt, ist bei dieser Aus­ führung das Schaltelement 2 drehbar gelagert und die mit ihm verbundene Verzahnung 11 als Zahnradsegment 12 ausgebildet.According to the invention it is now provided that an electromotive drive is formed by an electric motor 9 which acts via a pinion toothing 10 on a toothing 11 arranged on the switching element 2 . As shown in Fig. 1, the switching element 2 is rotatably mounted in this embodiment and the toothing 11 connected to it is designed as a gear segment 12 .

Alternativ zu dieser Ausführung kann jedoch auch vorgesehen werden, daß das Schalt­ element 2 verschiebbar gelagert ist und die mit ihm verbundene Verzahnung 11 als Zahnstange 13 ausgebildet ist, wie schematisch in Fig. 2 dargestellt ist.As an alternative to this embodiment, however, it can also be provided that the switching element 2 is mounted displaceably and the toothing 11 connected to it is designed as a toothed rack 13 , as is shown schematically in FIG. 2.

Es ist von besonderem Vorteil, wenn, wie in Fig. 3 dargestellt ist, der Elektromotor 9 in einer am Schaltsaugrohr 1 befestigten Gehäuseeinheit 14 angeordnet ist, aus der eine Welle 15 mit der Ritzelverzahnung 10 herausragt und durch eine Schaltsaugrohröffnung 16 in das Schaltsaugrohr 1 ragt und dort mit der Verzahnung 11 am Schaltelement 2 zusammenwirkt.It is particularly advantageous if, as shown in FIG. 3, the electric motor 9 is arranged in a housing unit 14 fastened to the switching intake manifold 1 , from which a shaft 15 with the pinion toothing 10 protrudes and projects through a switching intake manifold opening 16 into the switching intake manifold 1 and there cooperates with the toothing 11 on the switching element 2 .

Diese Ausführung reduziert die Bauteileanzahl und minimiert die Bauteiletoleranzen. Wie dargestellt (Fig. 3) ist die Welle 15 mit der Ritzelverzahnung 10 als Getriebewelle 1 7 ausgeführt, die mit einem Getrieberad 18 verbunden ist, in dessen Verzahnung 1 9 ein Elektromotorritzel 20 eingreift.This version reduces the number of components and minimizes component tolerances. As illustrated (Fig. 3), the shaft running 15 with the pinion teeth 10 as a transmission shaft 1 to 7, which is connected with a gear wheel 18 which engages an electric motor pinion 20 in the toothing 1 9.

Alternativ hierzu kann (nicht extra dargestellt) jedoch die Welle 15 mit Ritzelverzahnung 10 als Elektromotorwelle 20 ausgeführt sein, wobei dann ein entsprechendes Motor­ drehmoment vorliegen muß.Alternatively, the shaft 15 with pinion teeth 10 can be designed as an electric motor shaft 20 (not shown separately), in which case a corresponding motor torque must be present.

Es ist vorteilhaft, wenn Schaltelement 2 und Verzahnung 11 in einem gemeinsamen Spritzgußvorgang hergestellt sind.It is advantageous if the switching element 2 and the toothing 11 are produced in a common injection molding process.

Wie aus Fig. 1 und 2 entnehmbar ist, ist das Schaltelement 2 durch eine gespannte Fe­ der 21 in einer Endlage 22 gehalten und kann aus dieser durch den Antrieb bzw. Elek­ tromotor 9 verstellt werden. Die Feder 21 kann in einer mono- oder bistabilen Anord­ nung 23 oder 24 eingespannt werden. Die Feder 21 in der monostabilen Anordnung ist in Fig. 1, in der bistabilen Anordnung in Fig. 2 gezeigt. As shown in FIGS. 1 and 2 is removed, the switching element 2 is held in one end position 22 by a tensioned Fe of 21 and can be adjusted from this tromotor by the drive or Elek. 9 The spring 21 can be clamped in a monostable or bistable arrangement 23 or 24 . The spring 21 in the monostable arrangement is shown in FIG. 1, in the bistable arrangement in FIG. 2.

Es ist vorgesehen, daß der Elektromotor 9 durch Spannungs- oder Pulsweitensignalände­ rung bestromt wird, wobei die Bestromung mit umschaltbarer Polarität erfolgen kann zur Unterstützung der Rückstellkräfte, die von der Feder 121 bewirkt werden.It is provided that the electric motor 9 is energized by voltage or pulse width signal change tion, the energization can be carried out with switchable polarity to support the restoring forces caused by the spring 121 .

Zur Erhöhung der Verstellgeschwindigkeit bei geringstem Stromverbrauch ist vorgesehen, daß die Bestromung entsprechend einer Peak-and-hold-Kennlinie erfolgt, die in Fig. 4 dargestellt ist, in der ein Diagramm gezeigt wird, bei dem über einer Zeitlinie Kennlinien der Bestromung als Spannungssignal (Volt) oder des Pulsweitensignals (%) dargestellt sind, mit umschaltbarer Polarität, und eine Kennlinie der Verstellung in Winkelgrad (GRD).In order to increase the adjustment speed with the lowest power consumption, it is provided that the energization takes place according to a peak-and-hold characteristic curve, which is shown in FIG. 4, in which a diagram is shown in which characteristic curves of the current supply as voltage signal ( Volts) or the pulse width signal (%) are shown with switchable polarity, and a characteristic curve of the adjustment in degrees (GRD).

Durch die erfindungsgemäße Ausbildung ist durch das angespritzte Zahnradsegment 13 und die aufsetzbare Gehäuseeinheit 14 eine Verringerung der Bauteile erreicht worden und darüber hinaus der Ungenauigkeit zusammenwirkender Bauteile.Due to the design according to the invention, the molded gear segment 13 and the attachable housing unit 14 have reduced the number of components and, moreover, the inaccuracy of interacting components.

Claims (12)

1. Schaltsaugrohr für Brennkraftmaschinen mit einem elektromotorisch verstellbaren Schal­ telement zur Veränderung der Schaltsaugrohrinnenkontur zur Verbesserung der Brenn­ kraftmaschinenleistung in vorgegebenen Drehzahlbereichen, dadurch gekennzeichnet, daß ein elektromotorischer Antrieb von einem Elektromotor (9) gebildet ist, der über eine Ritzelverzahnung (10) auf eine am Schaltelement (2) angeordnete Verzahnung (11) einwirkt.1. Switching intake manifold for internal combustion engines with an electromotive adjustable scarf telement for changing the switching intake manifold inner contour to improve the internal combustion engine performance in predetermined speed ranges, characterized in that an electromotive drive is formed by an electric motor ( 9 ) which via a pinion toothing ( 10 ) on a Switching element ( 2 ) arranged toothing ( 11 ) acts. 2. Schaltsaugrohr nach Anspruch 1, dadurch gekennzeichnet, daß das Schaltelement (2) drehbar gelagert ist und die mit ihm verbundene Verzahnung (11) als Zahnradsegment (12) ausgebildet ist.2. intake manifold according to claim 1, characterized in that the switching element ( 2 ) is rotatably mounted and the toothing ( 11 ) connected to it is designed as a gear segment ( 12 ). 3. Schaltsaugrohr nach Anspruch 1, dadurch gekennzeichnet, daß das Schaltelement (2) verschiebbar gelagert ist und die mit ihm verbundene Verzahnung (11) als Zahnstange (13) ausgebildet ist.3. intake manifold according to claim 1, characterized in that the switching element ( 2 ) is slidably mounted and the toothing ( 11 ) connected to it is designed as a rack ( 13 ). 4. Schaltsaugrohr nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß der Elektromotor (9) in einer am Schaltsaugrohr (1) befestigten Gehäuseeinheit (14) angeordnet ist, aus der eine Welle (15) mit der Ritzelverzahnung (10) herausragt und durch eine Schaltsaug­ rohröffnung (16) in das Schaltsaugrohr (1) ragt und dort mit der Verzahnung (11) am Schaltelement (2) zusammenwirkt.4. Switching suction tube according to claim 2 or 3, characterized in that the electric motor ( 9 ) in a on the switching suction tube ( 1 ) fixed housing unit ( 14 ) is arranged, from which a shaft ( 15 ) with the pinion teeth ( 10 ) protrudes and through a Switching suction pipe opening ( 16 ) protrudes into the switching suction pipe ( 1 ) and interacts there with the toothing ( 11 ) on the switching element ( 2 ). 5. Schaltsaugrohr nach Anspruch 4, dadurch gekennzeichnet, daß die Welle (15) mit der Ritzelverzahnung (10) als Getriebewelle (17) ausgeführt ist, die mit einem Getrieberad (18) verbunden ist, in dessen Verzahnung (19) ein Elektromotorritzel (20) eingreift. 5. intake manifold according to claim 4, characterized in that the shaft ( 15 ) with the pinion toothing ( 10 ) is designed as a gear shaft ( 17 ) which is connected to a gear wheel ( 18 ), in the toothing ( 19 ) of which an electric motor pinion ( 20 ) intervenes. 6. Schaltsaugrohr nach Anspruch 4, dadurch gekennzeichnet, daß die Welle (15) mit Rit­ zelverzahnung (10) als Elektromotorwelle (20) ausgeführt ist.6. Switching intake manifold according to claim 4, characterized in that the shaft ( 15 ) with Rit toothing ( 10 ) is designed as an electric motor shaft ( 20 ). 7. Schaltsaugrohr nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß Schaltelement (2) und Verzahnung (11) in einem gemeinsamen Spritzgußvorgang herge­ stellt sind.7. Switching intake manifold according to one of the preceding claims, characterized in that the switching element ( 2 ) and toothing ( 11 ) in a common injection molding process are Herge. 8. Schaltsaugrohr nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das Schaltelement (2) durch eine gespannte Feder (21) in einer Endlage (22) gehalten und aus dieser durch den Antrieb bzw. Elektromotor (9) verstellt wird.8. Switching intake manifold according to one of the preceding claims, characterized in that the switching element ( 2 ) is held by a tensioned spring ( 21 ) in an end position ( 22 ) and is adjusted from this by the drive or electric motor ( 9 ). 9. Schaltsaugrohr nach Anspruch 8, dadurch gekennzeichnet, daß die Feder (21) in einer mono- oder bistabilen Anordnung (23 oder 24) eingespannt ist.9. intake manifold according to claim 8, characterized in that the spring ( 21 ) is clamped in a mono- or bistable arrangement ( 23 or 24 ). 10. Schaltsaugrohr nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß der Elektromotor (9) durch Spannungs- oder Pulsweitensignaländerung bestromt wird.10. Switching suction tube according to claim 8 or 9, characterized in that the electric motor ( 9 ) is energized by voltage or pulse width signal change. 11. Schaltsaugrohr nach Anspruch 10, dadurch gekennzeichnet, daß die Bestromung mit umschaltbarer Polarität erfolgt.11. Switching intake manifold according to claim 10, characterized in that the energization with switchable polarity. 12. Schaltsaugrohr nach Anspruch 10 oder 11, dadurch gekennzeichnet, daß die Bestrom­ ung entsprechend einer Peak-and-hold-Kennlinie erfolgt.12. intake manifold according to claim 10 or 11, characterized in that the energizing according to a peak-and-hold characteristic.
DE19634913A 1996-08-29 1996-08-29 Variable-length induction pipe for internal combustion engine Withdrawn DE19634913A1 (en)

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Application Number Priority Date Filing Date Title
DE19634913A DE19634913A1 (en) 1996-08-29 1996-08-29 Variable-length induction pipe for internal combustion engine

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DE19634913A DE19634913A1 (en) 1996-08-29 1996-08-29 Variable-length induction pipe for internal combustion engine

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1267067A1 (en) * 2001-06-13 2002-12-18 Bayerische Motoren Werke Aktiengesellschaft Mixture preparation device for a combustion engine
EP1256701A3 (en) * 2001-05-12 2003-06-11 Bayerische Motoren Werke Aktiengesellschaft Intake system for an internal combustion engine
GB2386644A (en) * 2002-03-19 2003-09-24 Siemens Vdo Automotive Inc I.c. engine intake manifold with telescopic runners of continuously variable length
WO2004003358A1 (en) * 2002-06-26 2004-01-08 Siemens Aktiengesellschaft Intake device
DE10310217A1 (en) * 2003-03-08 2004-09-16 Daimlerchrysler Ag Actuating controlled inlet manifold valve of vehicle, employs toothed sector constructed for clamping with adjuster in end positions
DE10310218A1 (en) * 2003-03-08 2004-09-16 Daimlerchrysler Ag Unit adjusting flap valve between two end positions in controlled air intake manifold of engine, includes worm wheel shaft with controlled axial movement
WO2006136137A1 (en) * 2005-06-22 2006-12-28 Mahle International Gmbh Flap arrangement for a fresh gas arrangement
DE202005012790U1 (en) * 2005-08-11 2006-12-28 Mann + Hummel Gmbh Intake unit for an internal combustion engine with at least one intake pipe comprises a blocking element which at the branching point is slidable along a guide path
US7210444B2 (en) 2002-05-17 2007-05-01 Brp-Rotax Gmbh & Co. Kg Variable air intake pipe length
DE102005052966A1 (en) * 2005-11-07 2007-05-10 Pierburg Gmbh Adjusting device for adjusting of components in internal combustion engine, has gearbox unit which is formed as spur gear and spring element accelerates driving unit after exceeding breakover point
EP1881172A2 (en) 2006-07-20 2008-01-23 Yamaha Hatsudoki Kabushiki Kaisha Intake control device
EP1389272B2 (en) † 2001-05-23 2010-06-16 Continental Automotive GmbH Device for preventing an exhaust gas recirculation valve from sticking after switching off an internal combustion engine
DE102015211284A1 (en) * 2015-06-18 2016-12-22 Ford Global Technologies, Llc A spark-ignited supercharged internal combustion engine with variable intake system and method for mixture formation in such an internal combustion engine
DE102020112461A1 (en) 2020-05-07 2021-11-11 Röchling Automotive SE & Co. KG Air suction device with a variable-length suction channel and separate centering device

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1256701A3 (en) * 2001-05-12 2003-06-11 Bayerische Motoren Werke Aktiengesellschaft Intake system for an internal combustion engine
EP1389272B2 (en) † 2001-05-23 2010-06-16 Continental Automotive GmbH Device for preventing an exhaust gas recirculation valve from sticking after switching off an internal combustion engine
EP1267067A1 (en) * 2001-06-13 2002-12-18 Bayerische Motoren Werke Aktiengesellschaft Mixture preparation device for a combustion engine
GB2386644A (en) * 2002-03-19 2003-09-24 Siemens Vdo Automotive Inc I.c. engine intake manifold with telescopic runners of continuously variable length
GB2386644B (en) * 2002-03-19 2005-07-06 Siemens Vdo Automotive Inc Variable intake manifold assembly
US6983727B2 (en) 2002-03-19 2006-01-10 Siemens Vdo Automotive Inc. Continuously variable intake manifold with intelligent position control
US7210444B2 (en) 2002-05-17 2007-05-01 Brp-Rotax Gmbh & Co. Kg Variable air intake pipe length
WO2004003358A1 (en) * 2002-06-26 2004-01-08 Siemens Aktiengesellschaft Intake device
DE10228569B4 (en) * 2002-06-26 2006-02-09 Siemens Ag suction
DE10310217A1 (en) * 2003-03-08 2004-09-16 Daimlerchrysler Ag Actuating controlled inlet manifold valve of vehicle, employs toothed sector constructed for clamping with adjuster in end positions
DE10310218A1 (en) * 2003-03-08 2004-09-16 Daimlerchrysler Ag Unit adjusting flap valve between two end positions in controlled air intake manifold of engine, includes worm wheel shaft with controlled axial movement
WO2006136137A1 (en) * 2005-06-22 2006-12-28 Mahle International Gmbh Flap arrangement for a fresh gas arrangement
DE202005012790U1 (en) * 2005-08-11 2006-12-28 Mann + Hummel Gmbh Intake unit for an internal combustion engine with at least one intake pipe comprises a blocking element which at the branching point is slidable along a guide path
DE102005052966A1 (en) * 2005-11-07 2007-05-10 Pierburg Gmbh Adjusting device for adjusting of components in internal combustion engine, has gearbox unit which is formed as spur gear and spring element accelerates driving unit after exceeding breakover point
EP1881172A2 (en) 2006-07-20 2008-01-23 Yamaha Hatsudoki Kabushiki Kaisha Intake control device
EP1881172A3 (en) * 2006-07-20 2012-12-19 Yamaha Hatsudoki Kabushiki Kaisha Intake control device
DE102015211284A1 (en) * 2015-06-18 2016-12-22 Ford Global Technologies, Llc A spark-ignited supercharged internal combustion engine with variable intake system and method for mixture formation in such an internal combustion engine
US10060384B2 (en) 2015-06-18 2018-08-28 Ford Global Technologies, Llc System and method for air-fuel mixture formation in an internal combustion engine
DE102015211284B4 (en) 2015-06-18 2023-05-17 Ford Global Technologies, Llc Spark-ignition supercharged internal combustion engine with a variable intake system and method for mixture formation in such an internal combustion engine
DE102020112461A1 (en) 2020-05-07 2021-11-11 Röchling Automotive SE & Co. KG Air suction device with a variable-length suction channel and separate centering device
US11280300B2 (en) 2020-05-07 2022-03-22 Röchling Automotive SE & Co. KG Air intake device with a variable-length intake duct and a separate centering device
DE102020112461B4 (en) 2020-05-07 2022-08-11 Röchling Automotive SE & Co. KG Air intake device with an intake channel of variable length and a separate centering device

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