DE10020041A1 - Bypass valve body for turbo internal combustion engine has valve head and valve rod both with at least one pressure equalization bore, electrically actuated drive system for valve rod - Google Patents

Bypass valve body for turbo internal combustion engine has valve head and valve rod both with at least one pressure equalization bore, electrically actuated drive system for valve rod

Info

Publication number
DE10020041A1
DE10020041A1 DE10020041A DE10020041A DE10020041A1 DE 10020041 A1 DE10020041 A1 DE 10020041A1 DE 10020041 A DE10020041 A DE 10020041A DE 10020041 A DE10020041 A DE 10020041A DE 10020041 A1 DE10020041 A1 DE 10020041A1
Authority
DE
Germany
Prior art keywords
valve
valve rod
valve body
bypass
head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE10020041A
Other languages
German (de)
Other versions
DE10020041C2 (en
Inventor
Werner Buse
Gerhard Parthe
Guido Kurth
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
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Filing date
Publication date
Application filed by Pierburg GmbH filed Critical Pierburg GmbH
Priority to DE10020041A priority Critical patent/DE10020041C2/en
Publication of DE10020041A1 publication Critical patent/DE10020041A1/en
Application granted granted Critical
Publication of DE10020041C2 publication Critical patent/DE10020041C2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/16—Control of the pumps by bypassing charging air
    • 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)
  • Supercharger (AREA)

Abstract

The bypass valve body has a housing in which a valve rod (16) is moved by a drive unit and a valve head (13) is mounted on the valve rod with a valve closure part. The valve head and the valve rod both have at least one pressure equalization bore (22,23). The drive unit (17) is an electrically actuated drive system.

Description

Die Erfindung betrifft einen Bypassventilkörper für Turbo-Otto- Brennkraftmaschinen zur Verbindung der Druckseite mit der Ansaugseite einer Ladedruckpumpe, mit einem Gehäuse in dem eine Ventilstange mittels einer Antriebseinheit verschiebbar ist, wobei auf der Ventilstange ein Ventilkopf mit einem Ventilschließteil angeordnet ist.The invention relates to a bypass valve body for turbo gasoline Internal combustion engines for connecting the pressure side to the intake side of a Boost pressure pump, with a housing in which a valve rod by means of a Drive unit is displaceable, with a valve head on the valve rod a valve closing part is arranged.

Derartige Bypassventilkörper sind hinlänglich bekannt. Die Verbindungsfunktion zwischen der Druckseite und der Ansaugseite einer Ladedruckpumpe eines Turboladers wird für den Übergang von hoher Last in den Schubbetrieb der Brennkraftmaschine benötigt, um einen sogenannten "Pump-Effekt" des Turboladers gegen die geschlossene Drosselklappe der Brennkraftmaschine und ein zu starkes brutales Abbremsen der Turbo-Drehzahl gegebenenfalls mit thermodynamischen Problemen zu verhindern.Bypass valve bodies of this type are well known. The connection function between the pressure side and the suction side of a boost pump Turbocharger is used for the transition from high load to overrun Internal combustion engine required to have a so-called "pump effect" Turbocharger against the closed throttle valve of the internal combustion engine and an excessive brutal braking of the turbo speed, if necessary to prevent thermodynamic problems.

Derartige Bypassventilkörper unterliegen aufgrund ihres Einbauortes extremen Strömungsbedingungen. So kann der Strömungsdurchmesser bis zu 25 mm bei einem Differenzdruck von mehr als 1 bar betragen. Die bekannten Bypassventilkörper weisen dementsprechend ein Ansprechverhalten auf, daß den heutigen Anforderungen einer direkten schnellen Betätigung des Ventilkörpers nicht mehr entspricht.Bypass valve bodies of this type are subject to extreme conditions because of their installation location Flow conditions. The flow diameter can be up to 25 mm a differential pressure of more than 1 bar. The well-known Bypass valve bodies accordingly have a response that the today's requirements for direct, rapid actuation of the valve body no longer corresponds.

Der Erfindung liegt daher die Aufgabe zugrunde, einen Bypassventilkörper zu verschaffen, der den oben genannten Nachteil vermeidet und zudem auf einfache Weise und kostengünstig herzustellen ist. The invention is therefore based on the object of a bypass valve body procure, which avoids the disadvantage mentioned above and also on simple Is way and inexpensive to manufacture.  

Diese Aufgabe wird dadurch gelöst, daß der Ventilkopf und die Ventilstange jeweils zumindest eine Druckausgleichsbohrung aufweisen. Auf diese Weise ist gewährleistet, daß der Differenzdruck zwischen Druck- und Ansaugseite der Ladedruckpumpe nicht die Schließbewegung des Bypassventilkörpers behindert. Zwischen Vorder- und Rückseite des Ventilschließteiles und der Ventilstange findet also ein Druckausgleich statt. Aufgrund der geringen Ventilschließkräfte ist es möglich als Antriebseinheit ein elektrisch betätigbares Antriebssystem einzusetzen. Auf diese Weise kann auf einfache kostengünstige Weise ein direktes Ansprechverhalten realisiert werden. Steuereinheiten mit Unterdruckspeichern die bei pneumatischen Ventilen zur Ansteuerung dieser Ventile eingesetzt werden, können dann entfallen. Dadurch verringert sich der konstruktive Aufwand hinsichtlich der Kosten und des nötigen Bauraumes erheblich. Als besonders vorteilhaft hat es sich erwiesen einen elektromagnetischen Antrieb einzusetzen.This object is achieved in that the valve head and the valve rod each have at least one pressure compensation hole. That way ensures that the differential pressure between the pressure and suction side of the Boost pressure pump does not hinder the closing movement of the bypass valve body. Between the front and back of the valve closing part and the valve rod so there is pressure equalization. Because of the low valve closing forces an electrically actuable drive system is possible as the drive unit to use. In this way, a simple, inexpensive way direct response behavior can be realized. Control units with Vacuum storage for pneumatic valves to control them Valves are used, can then be omitted. This reduces the constructive effort in terms of costs and the necessary installation space considerably. It has proven to be particularly advantageous use electromagnetic drive.

Bei einer konstruktiv besonders vorteilhaften Ausführungsform ist zwischen dem Gehäuse und dem Ventilkopf eine Membran mit einer umlaufenden Dichtlippe als Ventilschließkörper angeordnet. Dabei hat es sich als sinnvoll erwiesen, um Fluchtungsprobleme und damit Dichtprobleme auszugleichen, daß die Verbindung zwischen der Ventilstange und dem Ventilkopf als kardanisches Kugelgelenk ausgeführt ist.In a particularly advantageous embodiment, between the Housing and the valve head as a membrane with a circumferential sealing lip Valve closing body arranged. It has proven useful to Alignment problems and thus sealing problems compensate for that connection between the valve rod and the valve head as a cardanic ball joint is executed.

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

Die Zeichnung zeigt:The drawing shows:

Fig. 1 eine schematische Darstellung einer Turbo-Otto- Brennkraftmaschine, und Fig. 1 is a schematic representation of a turbo Otto engine, and

Fig. 2 eine Schnittansicht des erfindungsgemäßen Bypassventilkörpers. Fig. 2 is a sectional view of the bypass valve body according to the invention.

Fig. 1 zeigt die schematische Darstellung einer Turbo-Otto-Brennkraftmaschine. Über eine Ansaugleitung 1 wird Umgebungsluft angesaugt und durch den Verdichter 2, der durch eine abgasseitige Turbine 3 angetrieben wird, verdichtet und nachfolgend dem Brennraum 4 der Brennkraftmaschine zugeführt. Über die Abgasleitung 5 und die Turbine 3 wird das Abgas dann aus dem Brennraum 4 abgeführt. Die Regelung der dem Brennraum 4 zuzuführenden Ansaugluft findet durch eine Drosselklappe 6 statt. Um bei einer schnell schließenden Drosselklappe, beispielsweise ausgelöst durch plötzliches Abbremsen, einen Pump-Effekt des weiterdrehenden Turboladers gegen die geschlossene Drosselklappe 6 zu verhindern ist auf bekannte Weise eine Bypassleitung 7, die ein Bypassventilkörper 8 aufweist, vorgesehen. Über diese Bypassleitung 7 kann verdichtete Ansaugluft wieder in den Bereich der Ansaugleitung 1 vor dem Verdichter 2 zurückgeführt werden. Fig. 1 shows the schematic representation of a turbo Otto engine. Ambient air is drawn in via an intake line 1 and compressed by the compressor 2 , which is driven by an exhaust-side turbine 3 , and subsequently fed to the combustion chamber 4 of the internal combustion engine. The exhaust gas is then discharged from the combustion chamber 4 via the exhaust gas line 5 and the turbine 3 . The intake air to be supplied to the combustion chamber 4 is regulated by a throttle valve 6 . In order to prevent a pump effect of the turbocharger rotating against the closed throttle valve 6 in the case of a rapidly closing throttle valve, for example triggered by sudden braking, a bypass line 7 , which has a bypass valve body 8 , is provided in a known manner. Compressed intake air can be returned to the area of intake line 1 upstream of compressor 2 via this bypass line 7 .

Fig. 2 zeigt den erfindungsgemäßen Bypassventilkörper 8 im Schnitt. Im vorliegenden Beispiel ist der Bypassventilkörper 8 direkt an das Gehäuse 9 der Ladedruckpumpe 2 mittels Schrauben 10 angeflanscht. Der Bypassventilkörper 8 trennt dabei im Normalfall die Druckseite 11 von der Ansaugseite 12 der Ladedruckpumpe 2. Wird nun der Motor, beispielsweise aufgrund einer Verkehrssituation, plötzlich abgebremst und die Drosselklappe 6 geschlossen, wird die Druckseite 11 mit der Ansaugseite 12 verbunden, so daß kein sogenannter "Pump-Effekt" des Turboladers gegen die geschlossene Drosselklappe 6 auftreten kann. Fig. 2 shows the bypass valve body 8 according to the invention in section. In the present example, the bypass valve body 8 is flanged directly to the housing 9 of the boost pressure pump 2 by means of screws 10 . The bypass valve body 8 normally separates the pressure side 11 from the suction side 12 of the boost pressure pump 2 . If the engine is suddenly braked, for example due to a traffic situation, and the throttle valve 6 is closed, the pressure side 11 is connected to the intake side 12 , so that no so-called "pump effect" of the turbocharger against the closed throttle valve 6 can occur.

Hierzu weist der Bypassventilkörper 8 einen Ventilkopf 13 mit einem Ventilschließteil 14 auf, wobei der Ventilkopf 13 im vorliegenden Fall durch ein kardanisches Kugelgelenk 15 mit einer Ventilstange 16 verbunden ist. Die Ventilstange 16 wird auf bekannte Weise durch einen elektromagnetischen Antrieb 17 bewegt, wobei die Ventilstange 16 ein Ankerelement für die magnetische Wicklung 18 bildet. Ein Kernelement 19 bildet das Anker- Gegenstück. Die Stromversorgung ist durch einen elektrischen Anschlußstecker 20 gewährleistet. For this purpose, the bypass valve body 8 has a valve head 13 with a valve closing part 14 , the valve head 13 in the present case being connected to a valve rod 16 by a cardanic ball joint 15 . The valve rod 16 is moved in a known manner by an electromagnetic drive 17 , the valve rod 16 forming an anchor element for the magnetic winding 18 . A core element 19 forms the anchor counterpart. The power supply is ensured by an electrical connector 20 .

Das Ventilschließteil 14 ist im vorliegenden Fall als Membran mit einer umlaufenden Dichtlippe 21 ausgebildet. Der Ventilkopf 13 und die Ventilstange 16 weisen zumindest jeweils eine Druckausgleichsbohrung 22, 23 auf, um die Schließ- bzw. Öffnungskraft des Bypassventilkörpers so gering wie möglich zu halten. Im vorliegenden Fall müssen theoretisch als Öffnungskraft lediglich die Kraft einer Feder 24 sowie die üblichen Reibungskräfte überwunden werden. Auf diese Weise wurde ein Bypassventilkörper geschaffen der ein besonders schnelles Ansprechverhalten im Fahrbetrieb aufweist.In the present case, the valve closing part 14 is designed as a membrane with a circumferential sealing lip 21 . The valve head 13 and the valve rod 16 each have at least one pressure compensation bore 22 , 23 in order to keep the closing or opening force of the bypass valve body as low as possible. In the present case, theoretically only the force of a spring 24 and the usual frictional forces have to be overcome as the opening force. In this way, a bypass valve body was created which has a particularly quick response when driving.

Es sollte darauf hingewiesen werden, daß der Bypassventilkörper auch an anderer Stelle im Motorraum angeordnet werden kann, wobei die Verbindung zu Druck- bzw. Ansaugseite der Ladedruckpumpe, beispielsweise auch über Schlauchelemente erfolgen kann.It should be noted that the bypass valve body is also on can be arranged elsewhere in the engine compartment, the connection to Pressure or suction side of the boost pressure pump, for example also via Hose elements can be made.

Claims (5)

1. Bypassventilkörper für Turbo-Otto-Brennkraftmaschinen zur Verbindung der Druckseite mit der Ansaugseite einer Ladedruckpumpe, mit einem Gehäuse in dem eine Ventilstange mittels einer Antriebseinheit verschiebbar ist, wobei auf der Ventilstange ein Ventilkopf mit einem Ventilschließteil angeordnet ist, dadurch gekennzeichnet, daß der Ventilkopf (13) und die Ventilstange (16) jeweils zumindest eine Druckausgleichsbohrung (22, 23) aufweisen.1. Bypass valve body for turbo Otto engine for connecting the pressure side to the suction side of a boost pump, with a housing in which a valve rod is displaceable by means of a drive unit, a valve head with a valve closing part being arranged on the valve rod, characterized in that the valve head ( 13 ) and the valve rod ( 16 ) each have at least one pressure compensation bore ( 22 , 23 ). 2. Bypassventilkörper nach Anspruch 1, dadurch gekennzeichnet, daß die Antriebseinheit (17) ein elektrisch betätigbares Antriebssystem ist.2. Bypass valve body according to claim 1, characterized in that the drive unit ( 17 ) is an electrically actuated drive system. 3. Bypassventilkörper nach Anspruch der 2, dadurch gekennzeichnet, daß das elektrisch betätigbare Antriebssystem (17) ein elektromagnetischer Antrieb ist.3. Bypass valve body according to claim 2, characterized in that the electrically actuable drive system ( 17 ) is an electromagnetic drive. 4. Bypassventilkörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zwischen dem Gehäuse (9) und dem Ventilkopf (13) eine Membran (14) mit einer umlaufenden Dichtlippe (21) als Ventilschließteil angeordnet ist.4. Bypass valve body according to one of the preceding claims, characterized in that between the housing ( 9 ) and the valve head ( 13 ) a membrane ( 14 ) with a circumferential sealing lip ( 21 ) is arranged as a valve closing part. 5. Bypassventilkörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine Verbindung zwischen der Ventilstange (14) und dem Ventilkopf (13) als kardanisches Kugelgelenk (15) ausgeführt ist.5. Bypass valve body according to one of the preceding claims, characterized in that a connection between the valve rod ( 14 ) and the valve head ( 13 ) is designed as a cardanic ball joint ( 15 ).
DE10020041A 2000-04-22 2000-04-22 Bypass valve body for turbo Otto engine Expired - Lifetime DE10020041C2 (en)

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DE10020041A DE10020041C2 (en) 2000-04-22 2000-04-22 Bypass valve body for turbo Otto engine

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Cited By (15)

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Publication number Priority date Publication date Assignee Title
DE10251981A1 (en) * 2002-11-08 2005-03-03 Pierburg Gmbh Impulse air valve device for a turbo-charged combustion engine is controlled by connection of its control pressure chamber to the pressure side of the bypass line of the supercharger pump
EP1655465A2 (en) 2004-11-04 2006-05-10 Robert Bosch Gmbh Valve for ambiant air of a turbocharger for combustion engine
WO2006133986A2 (en) 2005-06-17 2006-12-21 Robert Bosch Gmbh Bypass valve for internal combustion engines
JP2007071207A (en) * 2005-09-08 2007-03-22 Pierburg Gmbh By-pass valve for internal combustion engine
WO2007048605A1 (en) * 2005-10-29 2007-05-03 Pierburg Gmbh Air control valve apparatus for an internal combustion engine
WO2007048828A1 (en) * 2005-10-29 2007-05-03 Pierburg Gmbh Ambient-air pulsed valve for internal combustion engines equipped with a turbocharger
WO2007088043A1 (en) * 2006-02-02 2007-08-09 Borgwarner Inc. Turbocharger
WO2009108531A1 (en) * 2008-02-19 2009-09-03 Continental Automotive Systems Us, Inc. Pressure balance of automotive air bypass valve
DE102008051453A1 (en) 2008-10-13 2010-04-15 Woco Industrietechnik Gmbh Ambient air pulsed valve for use in internal combustion engine of motor vehicle, has control chamber connected with valve chambers by connecting device, where valve chambers stay in fluid connection with inlet and outlet
WO2011157521A1 (en) 2010-06-18 2011-12-22 Pierbrug Gmbh Control device for internal combustion engines
US20150082790A1 (en) * 2013-09-20 2015-03-26 Aisan Kogyo Kabushiki Kaisha Low-pressure-loop exhaust recirculation apparatus of engine
US9157545B2 (en) 2008-02-19 2015-10-13 Continental Automotive Systems, Inc. Automotive air bypass valve
WO2016041659A1 (en) 2014-09-19 2016-03-24 Pierburg Gmbh Adjustment element for an overrun air recirculation valve
JP2016530462A (en) * 2013-07-25 2016-09-29 コンチネンタル オートモーティヴ ゲゼルシャフト ミット ベシュレンクテル ハフツングＣｏｎｔｉｎｅｎｔａｌ Ａｕｔｏｍｏｔｉｖｅ ＧｍｂＨ valve
DE102016118341A1 (en) 2016-09-28 2018-03-29 Pierburg Gmbh Adjusting element for a diverter valve

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DE102008031738A1 (en) 2008-07-04 2010-01-07 Pierburg Gmbh Ambient-air pulsed valve for internal combustion engine, has mobile valve unit or housing formed such that seal organ and sealing surface stay in effective connection in closed position
DE102008036637A1 (en) 2008-08-06 2010-02-18 Continental Automotive Gmbh Valve unit i.e. high voltage impulse air circulation valve unit, for use in turbocharger of vehicle for discharging air behind compressor, has solenoid unit operated with high voltage that lies in preset range
DE102010013264A1 (en) * 2010-03-29 2011-09-29 Continental Automotive Gmbh Turbocharger housing with a valve device and method for producing such a turbocharger housing
DE102015209929A1 (en) 2015-05-29 2016-12-01 Continental Automotive Gmbh Impeller housing for an exhaust gas turbocharger with a valve seat ring having a bypass valve and exhaust gas turbocharger and assembly method
DE102015212305A1 (en) 2015-07-01 2017-01-05 Continental Automotive Gmbh Impeller housing for an exhaust gas turbocharger with a valve seat ring having a bypass valve and exhaust gas turbocharger and method for producing a valve seat ring
DE102016214843B4 (en) 2016-08-10 2020-06-18 Continental Automotive Gmbh Bypass valve with flap apron for an exhaust gas turbocharger and exhaust gas turbocharger with such a bypass valve
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DE10251981A1 (en) * 2002-11-08 2005-03-03 Pierburg Gmbh Impulse air valve device for a turbo-charged combustion engine is controlled by connection of its control pressure chamber to the pressure side of the bypass line of the supercharger pump
EP1655465A2 (en) 2004-11-04 2006-05-10 Robert Bosch Gmbh Valve for ambiant air of a turbocharger for combustion engine
US8191855B2 (en) 2005-06-17 2012-06-05 Robert Bosch Gmbh Bypass valve for internal combustion engines
WO2006133986A3 (en) * 2005-06-17 2008-09-04 Bosch Gmbh Robert Bypass valve for internal combustion engines
WO2006133986A2 (en) 2005-06-17 2006-12-21 Robert Bosch Gmbh Bypass valve for internal combustion engines
JP2007071207A (en) * 2005-09-08 2007-03-22 Pierburg Gmbh By-pass valve for internal combustion engine
WO2007048605A1 (en) * 2005-10-29 2007-05-03 Pierburg Gmbh Air control valve apparatus for an internal combustion engine
US8387383B2 (en) 2005-10-29 2013-03-05 Pierburg Gmbh Ambient-air pulsed valve for internal combustion engines equipped with a turbocharger
WO2007048828A1 (en) * 2005-10-29 2007-05-03 Pierburg Gmbh Ambient-air pulsed valve for internal combustion engines equipped with a turbocharger
WO2007088043A1 (en) * 2006-02-02 2007-08-09 Borgwarner Inc. Turbocharger
US8348231B2 (en) * 2008-02-19 2013-01-08 Continental Automotive Systems Us, Inc. Pressure balance of automotive air bypass valve
WO2009108531A1 (en) * 2008-02-19 2009-09-03 Continental Automotive Systems Us, Inc. Pressure balance of automotive air bypass valve
US20100288953A1 (en) * 2008-02-19 2010-11-18 Perry Robert Czimmek Pressure Balance Of Automotive Air Bypass Valve
US9157545B2 (en) 2008-02-19 2015-10-13 Continental Automotive Systems, Inc. Automotive air bypass valve
DE102008051453A1 (en) 2008-10-13 2010-04-15 Woco Industrietechnik Gmbh Ambient air pulsed valve for use in internal combustion engine of motor vehicle, has control chamber connected with valve chambers by connecting device, where valve chambers stay in fluid connection with inlet and outlet
DE102010024297A1 (en) 2010-06-18 2011-12-22 Pierburg Gmbh Regulating device for internal combustion engines
WO2011157457A1 (en) 2010-06-18 2011-12-22 Pierburg Gmbh Overrun air recirculation valve for internal combustion engines
US9261015B2 (en) 2010-06-18 2016-02-16 Pierburg Gmbh Control device for internal combustion engines
WO2011157521A1 (en) 2010-06-18 2011-12-22 Pierbrug Gmbh Control device for internal combustion engines
JP2016530462A (en) * 2013-07-25 2016-09-29 コンチネンタル オートモーティヴ ゲゼルシャフト ミット ベシュレンクテル ハフツングＣｏｎｔｉｎｅｎｔａｌ Ａｕｔｏｍｏｔｉｖｅ ＧｍｂＨ valve
US20150082790A1 (en) * 2013-09-20 2015-03-26 Aisan Kogyo Kabushiki Kaisha Low-pressure-loop exhaust recirculation apparatus of engine
US9945328B2 (en) * 2013-09-20 2018-04-17 Aisan Kogyo Kabushiki Kaisha Low-pressure-loop exhaust recirculation apparatus of engine
DE102014113550B3 (en) * 2014-09-19 2016-03-31 Pierburg Gmbh Adjusting element for a diverter valve
JP2017531140A (en) * 2014-09-19 2017-10-19 ピールブルク ゲゼルシャフト ミット ベシュレンクテル ハフツングＰｉｅｒｂｕｒｇ ＧｍｂＨ Adjustment mechanism used for blow-off valves
US10393273B2 (en) 2014-09-19 2019-08-27 Pierburg Gmbh Adjustment element for an overrun air recirculation valve
WO2016041659A1 (en) 2014-09-19 2016-03-24 Pierburg Gmbh Adjustment element for an overrun air recirculation valve
DE102016118341A1 (en) 2016-09-28 2018-03-29 Pierburg Gmbh Adjusting element for a diverter valve
DE102016118341B4 (en) 2016-09-28 2022-04-28 Pierburg Gmbh Adjusting element for a blow-off valve

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