DE102006024781A1 - Two-stage turbocharger arrangement for an internal combustion engine comprises a throttle element formed by a first flap pivoting about a first axis and a second flap pivoting about a second axis - Google Patents

Two-stage turbocharger arrangement for an internal combustion engine comprises a throttle element formed by a first flap pivoting about a first axis and a second flap pivoting about a second axis Download PDF

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Publication number
DE102006024781A1
DE102006024781A1 DE102006024781A DE102006024781A DE102006024781A1 DE 102006024781 A1 DE102006024781 A1 DE 102006024781A1 DE 102006024781 A DE102006024781 A DE 102006024781A DE 102006024781 A DE102006024781 A DE 102006024781A DE 102006024781 A1 DE102006024781 A1 DE 102006024781A1
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Germany
Prior art keywords
flap
axis
pressure turbine
low
stage turbocharger
Prior art date
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Ceased
Application number
DE102006024781A
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German (de)
Inventor
Karl Mayr
Thomas Plösser
Johannes Gelbmann
Christoph Samhaber
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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.)
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Priority to DE102006024781A priority Critical patent/DE102006024781A1/en
Publication of DE102006024781A1 publication Critical patent/DE102006024781A1/en
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use
    • F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
    • F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
    • F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/105—Final actuators by passing part of the fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/141—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
    • 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
    • F02B37/004—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust drives arranged in series
    • 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
    • F02B37/013—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust-driven pumps arranged in series
    • 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
    • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • F02B37/183—Arrangements of bypass valves or actuators therefor
    • 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
    • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • F02B37/183—Arrangements of bypass valves or actuators therefor
    • F02B37/186—Arrangements of actuators or linkage for bypass valves
    • 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
    • F02B37/22—Control of the pumps by varying cross-section of exhaust passages or air passages, e.g. by throttling turbine inlets or outlets or by varying effective number of guide conduits
    • 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

Abstract

Two-stage turbocharger arrangement comprises a throttle element (4) formed by a first flap (4a) pivoting about a first axis and a second flap (4b) pivoting about a second axis. Preferred Features: Each flap opens in the direction of a channel wall (5~) of a bypass (5). The first flap has a first adjusting element (6a) and the second flap has a second element (6b).

Description

Die Erfindung betrifft eine zweistufige Abgasturboladeranordnung mit den Merkmalen aus dem Oberbegriff des Patentanspruchs 1.The The invention relates to a two-stage exhaust gas turbocharger arrangement with the features of the preamble of claim 1.

Sie geht von der deutschen Offenlegungsschrift DE 102 30 934 A1 aus. In dieser ist eine zweistufige, schaltbare Abgasturboladeranordnung für eine Brennkraftmaschine beschrieben. Die Abgasturboladeranordnung umfasst einen motornahen Hochdrucklader mit einer mit einem Abgassammler der Brennkraftmaschine abgasführend verbundenen Hochdruckturbine, mit der eine Niederdruckturbine eines Niederdruckladers in Reihe angeordnet ist. Jeder Turbine sind jeweils ein steuerbarer Bypass, ein Niederdruckbypass und ein Hochdruckbypass, zugeordnet, wobei der Hochdruckbypass in bekannter Weise mit einem Wastegate-Ventil ausgebildet ist. Das Wastegate-Ventil ist ein in bekannter Weise ausgeführtes Klappenventil.It starts from the German publication DE 102 30 934 A1 out. In this a two-stage, switchable exhaust gas turbocharger assembly for an internal combustion engine is described. The exhaust-gas turbocharger arrangement comprises a high-pressure supercharger close to the engine, with a high-pressure turbine connected in an exhaust-gas-conducting manner to an exhaust gas collector of the internal combustion engine, with which a low-pressure turbine of a low-pressure supercharger is arranged in series. Each turbine are each a controllable bypass, a low-pressure bypass and a high-pressure bypass, assigned, wherein the high-pressure bypass is formed in a known manner with a wastegate valve. The wastegate valve is a flap valve designed in a known manner.

Speziell im Übergangsbereich, in dem beide Turbolader einen signifikanten Beitrag zur Erzeugung des Ladedrucks leisten müssen, wird durch die o. g. Anordnung die vorhandene Abgasenergie nicht optimal genutzt. Der nutzbare Drehzahlbereich der Brennkraftmaschine wird eingeschränkt. Die qualitätsbestimmende „Spreizung" zwischen der Auslegung von der Hochdruck- und Niederdruckstufe kann nicht optimal gestaltet werden. Dadurch kommt es entweder zu Anfahrschwächen im unteren Drehzahlbereich, dem sog. „Drehmomentloch" oder einer geringeren Spitzen- oder Nennleistung der Brennkraftmaschine.specially in the transition area, in which both turbochargers make a significant contribution to the generation of the Have to afford boost pressure, is replaced by the o. g. Disposition the existing exhaust energy not optimally used. The usable speed range of the internal combustion engine is restricted. The quality determining "spread" between the interpretation from the high pressure and Low pressure level can not be optimally designed. This comes it either to Anfahrschwächen in the lower speed range, the so-called "torque hole" or a lower one Peak or rated power of the internal combustion engine.

Aufgabe der vorliegenden Erfindung ist es, eine Maßnahme aufzuzeigen, mit der o. g. Nachteile vermieden werden.task The present invention is to show a measure with which o. g. Disadvantages are avoided.

Diese Aufgabe wird durch die Merkmale im kennzeichnenden Teil des Patentanspruchs 1 gelöst.These The object is achieved by the features in the characterizing part of the claim 1 solved.

Die Ausgestaltung des Drosselelementes in Form von zwei zueinander verschwenkbaren Klappen ermöglicht einen größeren Kanalquerschnitt im Bypass, wodurch die Strömungsverluste minimiert werden. Gleichzeitig wird der Abgasdurchsatz durch diese Maßnahme vergrößert, wodurch eine Wirkungsgradsteigerung des Abgasturboladers möglich ist. Durch die Aufteilung auf zwei Klappen statt einer, wie aus dem Stand der Technik bekannt, kann die Betätigungskraft pro Klappe abgesenkt werden bzw. es kann beidseitig der Klappen ein größerer Differenzdruck vorherrschen.The Design of the throttle element in the form of two mutually pivotable Flaps allows a larger channel cross-section in the bypass, reducing the flow losses be minimized. At the same time the exhaust gas flow through this measure enlarged, which an increase in efficiency of the exhaust gas turbocharger is possible. By dividing it into two flaps instead of one, as if standing upright known in the art, the operating force per flap can be lowered or it can be on both sides of the flaps a greater differential pressure prevalence.

Durch die Ausgestaltung gemäß Patentanspruch 2 ist in vorteilhafter Weise weder ein Betätigungsarm oder eine Betätigungsachse im Strömungsquerschnitt angeordnet. Auch hierdurch wird der Strömungsquerschnitt im Bypass optimiert, wodurch der Wirkungsgrad des Abgasturboladers ebenfalls verbessert wird.By the embodiment according to claim 2 is advantageously neither an actuating arm or an actuating axis in the flow cross-section arranged. This also makes the flow cross section in the bypass optimized, whereby the efficiency of the exhaust gas turbocharger also is improved.

Die Ausgestaltung gemäß Patentanspruch 3 ermöglicht die unabhängige Betätigung der ersten und der zweiten Klappe.The Embodiment according to claim 3 allows the independent one activity the first and the second flap.

Die Ausgestaltungen gemäß Patentanspruch 4 sind besonders bevorzugte Ausführungsvarianten.The Embodiments according to claim 4 are particularly preferred embodiments.

Die Ausgestaltung gemäß Patentanspruch 5 ist ebenfalls eine bevorzugte Ausführungsvariante.The Embodiment according to claim 5 is also a preferred embodiment.

Durch die Ausgestaltung gemäß Patentanspruch 6 ergibt sich in vorteilhafter Weise bereits bei geringer Öffnung des Drosselelementes ein gerichteter Abgasmassenstrom, der eine verbesserte Wirkung der Niederdruckturbine ergibt. Somit wird der Wirkungsgrad des Niederdruckabgasturboladers bereits bei geringer Öffnung des Drosselelementes verbessert.By the embodiment according to claim 6 results in an advantageous manner even at low opening of the Throttle element a directed exhaust gas mass flow, which improved Effect of low pressure turbine results. Thus, the efficiency becomes the low pressure exhaust gas turbocharger already at low opening of Throttle element improved.

Im Folgenden ist die Erfindung anhand eines bevorzugten Ausführungsbeispieles in einer einzigen Figur näher erläutert.in the The invention is based on a preferred embodiment in a single figure closer explained.

1 zeigt die Aufsicht auf eine erfindungsgemäß ausgestaltete zweistufige Abgasturboladeranordnung. 1 shows the top view of an inventively designed two-stage exhaust gas turbocharger assembly.

1 zeigt die Aufsicht auf eine erfindungsgemäß ausgestaltete Abgasturboladeranordnung 1, wobei ein Bereich eines Drosselelementes 4 geschnitten dargestellt ist. Die zweistufige Abgasturboladeranordnung 1 ist für eine nicht dargestellte Brennkraftmaschine vorgesehen. An einem Abgaskrümmer 2 der Brennkraftmaschine ist geodätisch oben ansatzweise erkennbar ein Hochdruckturbinengehäuse 7 angeordnet. Geodätisch unten am Abgaskrümmer 2 ist ein Niederdruckturbinengehäuse 3 mit einem Niederdruckverdichtergehäuse 3' angeordnet. Ein Bypass 5 bildet einen Abgas führenden Übergang vom Abgaskrümmer 2 zur Niederdruckturbine 3. Im Bypass 5 ist das Drosselelement 4, bestehend aus einer ersten, um eine erste Achse schwenkbaren und einer zweiten, um eine zweite Achse schwenkbaren Klappe 4a, 4b, angeordnet. Die erste Klappe 4a ist von einem ersten Stellelement 6a, die zweite Klappe 4b ist von einem zweiten Stellelement 6b betätigbar. Die Stellelemente 6a, 6b sind im vorliegenden Ausführungsbeispiel pneumatisch betätigbar, jedoch kann auch eine elektrische oder hydraulische Betätigung vorgesehen werden. 1 shows the top view of an inventively designed exhaust gas turbocharger assembly 1 , wherein a portion of a throttle element 4 is shown cut. The two-stage exhaust gas turbocharger arrangement 1 is intended for an internal combustion engine, not shown. At an exhaust manifold 2 the internal combustion engine is geodetically top approachable recognizable a high-pressure turbine housing 7 arranged. Geodesic at the bottom of the exhaust manifold 2 is a low-pressure turbine housing 3 with a low pressure compressor housing 3 ' arranged. A bypass 5 forms an exhaust leading transition from the exhaust manifold 2 to the low-pressure turbine 3 , In the bypass 5 is the throttle element 4 consisting of a first, pivotable about a first axis and a second, pivotable about a second axis flap 4a . 4b arranged. The first flap 4a is from a first actuator 6a , the second door 4b is from a second actuator 6b actuated. The control elements 6a . 6b are pneumatically actuated in the present embodiment, but also an electrical or hydraulic actuation can be provided.

Die erste und die zweite Schwenkachse sind im Bereich einer Kanalwand 5' des Bypasses 5 angeordnet, wobei die Klappen 4a, 4b in Richtung der Kanalwand 5' zu öffnen sind. Zur Funktionsweise der zweistufigen Abgasturboladeraufladung 1 wird ausdrücklich auf die deutsche Offenlegungsschrift DE 102 30 934 A1 hingewiesen.The first and the second pivot axis are in the region of a channel wall 5 ' of the bypass 5 arranged, with the flaps 4a . 4b in the direction of the canal wall 5 ' to open. To the functioning of the two-stage turbocharger charging 1 is expressly to the German patent application DE 102 30 934 A1 pointed.

Bei geschlossenem Drosselelement 4 bilden die erste und die zweite Klappe 4a, 4b niederdruckturbinenseitig bevorzugt einen Winkel α zwischen 190° und 290° zueinander. Im vorliegenden Ausführungsbeispiel sind die Klappen 4a, 4b gegeneinander über eine gerade Linienberührung abgedichtet, in weiteren Ausführungsbeispielen können auch gekrümmte Dichtlinien vorgesehen sein.When the throttle element is closed 4 form the first and the second flap 4a . 4b low-pressure turbine side preferably an angle α between 190 ° and 290 ° to each other. In the present embodiment, the flaps 4a . 4b sealed against each other via a straight line contact, in other embodiments, curved sealing lines can be provided.

Durch die erfindungsgemäße Ausgestaltung des Drosselelementes 4 wird die Abgasenergie optimal genutzt. Dies wird dadurch erreicht, dass das durch das Drosselelement 4 strömende Abgas mit möglichst geringem Strömungsverlust gerichtet auf die Niederdruckturbine geleitet wird. Darüber hinaus erlauben die erfindungsgemäßen Klappen 4a, 4b einen größeren Kanalquerschnitt, da keine Achsen oder ähnliche Bauteile im Strömungsquerschnitt des Bypasses 5 angeordnet sind. Die Schrägstellung der Klappen 4a, 4b in Richtung der Niederdruckturbine im geschlossenen Zustand ergibt bei bereits geringer Öffnung einen in Richtung der Niederdruckturbine gerichteten Abgasstrom, der den Wirkungsgrad der Niederdruckturbine verbessert. Durch die Aufteilung des Drosselelementes 4 auf zwei Klappen 4a, 4b, kann die Betätigungskraft pro Klappe 4a, 4b gesenkt werden, bzw. es kann ein höherer Differenzdruck beidseitig des Drosselelementes 4, bzw. der Klappen 4a, 4b eingestellt werden.Due to the inventive design of the throttle element 4 the exhaust gas energy is used optimally. This is achieved by the fact that by the throttle element 4 flowing exhaust gas is directed with the least possible flow loss directed to the low-pressure turbine. In addition, the valves according to the invention allow 4a . 4b a larger channel cross section, as no axes or similar components in the flow cross section of the bypass 5 are arranged. The inclination of the flaps 4a . 4b in the direction of the low-pressure turbine in the closed state results in already small opening a directed toward the low-pressure turbine exhaust stream, which improves the efficiency of the low-pressure turbine. By dividing the throttle element 4 on two flaps 4a . 4b , the operating force per flap 4a . 4b can be lowered, or it can be a higher differential pressure on both sides of the throttle element 4 , or the flaps 4a . 4b be set.

Das erfindungsgemäße Drosselelement 4 kann beispielsweise aus hochtemperaturfesten Stählen oder auch aus Keramik gebaut sein.The throttle element according to the invention 4 can be built, for example, from high temperature resistant steels or ceramic.

11
AbgasturboladeranordnungTurbocharger arrangement
22
Abgaskrümmerexhaust manifold
33
NiederdruckturbinengehäuseLow-pressure turbine case
3'3 '
NiederdruckverdichtergehäuseLow-pressure compressor housing
44
Drosselelementthrottle element
4a4a
Erste KlappeFirst flap
4b4b
Zweite KlappeSecond flap
55
Bypassbypass
5'5 '
Kanalwandchannel wall
6a6a
Erstes Stellelementfirst actuator
6b6b
Zweites Stellelementsecond actuator
77
HochdruckturbinengehäuseHigh-pressure turbine housing

Claims (6)

Zweistufige Abgasturboladeranordnung (1) für eine Bennkraftmaschine mit einem Abgaskrümmer (2) und mit einer in Strömungsrichtung eines Abgases in Reihe angeordneten Hochdruckturbine in einem Hochdruckturbinengehäuse und einer Niederdruckturbine in einem Niederdruckturbinengehäuse (3), wobei ein von einem Drosselelement (4) verschließbarer Bypass (5) vorgesehen ist, der den Abgaskrümmer (2) und das Niederdruckturbinengehäuse (3) in Strömungsrichtung des Abgases vor der Niederdruckturbine abgasführend miteinander verbindet, dadurch gekennzeichnet, dass das Drosselelement (4) von einer ersten, um eine erste Achse schwenkbare und einer zweiten, um eine zweite Achse schwenkbaren Klappe (4a, 4b) gebildet ist.Two-stage turbocharger arrangement ( 1 ) for an internal combustion engine with an exhaust manifold ( 2 ) and with a high-pressure turbine arranged in series in the flow direction of an exhaust gas in a high-pressure turbine housing and a low-pressure turbine in a low-pressure turbine housing ( 3 ), one of a throttle element ( 4 ) lockable bypass ( 5 ) is provided, the exhaust manifold ( 2 ) and the low-pressure turbine housing ( 3 ) in the flow direction of the exhaust gas in front of the low-pressure turbine exhaust gas leading together, characterized in that the throttle element ( 4 ) of a first, pivotable about a first axis and a second, about a second axis pivotable flap ( 4a . 4b ) is formed. Zweistufige Abgasturboladeranordnung nach Patentanspruch 1, dadurch gekennzeichnet, dass jede Klappe (4a, 4b) in Richtung einer Kanalwand (5') des Bypasses (5) zu öffnen ist.Two-stage turbocharger arrangement according to claim 1, characterized in that each flap ( 4a . 4b ) in the direction of a channel wall ( 5 ' ) of the bypass ( 5 ) is open. Zweistufige Abgasturboladeranordnung nach Patentanspruch 1 oder 2, dadurch gekennzeichnet, dass der ersten Klappe (4a) ein erstes Stellelement (6a) und der zweiten Klappe ein zweites Stellelement (6b) zugeordnet ist.Two-stage turbocharger arrangement according to claim 1 or 2, characterized in that the first flap ( 4a ) a first actuator ( 6a ) and the second flap a second actuator ( 6b ) assigned. Zweistufige Abgasturboladeranordnung nach Patentanspruch 3, dadurch gekennzeichnet, dass das erste und/oder das zweite Stellelement (6a, 6b) pneumatisch oder elektrisch oder hydraulisch betätigbar ist.Two-stage turbocharger arrangement according to claim 3, characterized in that the first and / or the second control element ( 6a . 6b ) is pneumatically or electrically or hydraulically actuated. Zweistufige Abgasturboladeranordnung nach einem der zuvor genannten Patentansprüche, dadurch gekennzeichnet, dass das Drosselelement (4) in dem Abgaskrümmer (2) oder dem Niederdruckturbinengehäuse (3) angeordnet ist.Two-stage turbocharger arrangement according to one of the aforementioned claims, characterized in that the throttle element ( 4 ) in the exhaust manifold ( 2 ) or the low-pressure turbine housing ( 3 ) is arranged. Zweistufige Abgasturboladeranordnung nach einem der zuvor genannten Patentansprüche, dadurch gekennzeichnet, dass durch die erste und die zweite Klappe (4a, 4b) in einer Schließstellung niederdruckturbinenseitig ein Winkel (α) zwischen 190° und 290° gebildet ist.Two-stage turbocharger arrangement according to one of the aforementioned claims, characterized in that by the first and the second flap ( 4a . 4b ) is formed in a closed position low-pressure turbine side an angle (α) between 190 ° and 290 °.
DE102006024781A 2006-05-27 2006-05-27 Two-stage turbocharger arrangement for an internal combustion engine comprises a throttle element formed by a first flap pivoting about a first axis and a second flap pivoting about a second axis Ceased DE102006024781A1 (en)

Priority Applications (1)

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DE102006024781A DE102006024781A1 (en) 2006-05-27 2006-05-27 Two-stage turbocharger arrangement for an internal combustion engine comprises a throttle element formed by a first flap pivoting about a first axis and a second flap pivoting about a second axis

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DE102006024781A DE102006024781A1 (en) 2006-05-27 2006-05-27 Two-stage turbocharger arrangement for an internal combustion engine comprises a throttle element formed by a first flap pivoting about a first axis and a second flap pivoting about a second axis

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
DE102009053464A1 (en) 2009-11-16 2011-05-19 Volkswagen Ag Valve means for selectively opening or closing an overflow surface
DE102011008599A1 (en) * 2011-01-14 2012-07-19 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Exhaust gas stream controller for turbocharger of internal combustion engine, has pipe region connected with turbine output, so that exhaust gas stream of turbo charger is conducted by another pipe region into former pipe region
EP2657480A1 (en) * 2012-04-27 2013-10-30 Bosch Mahle Turbo Systems GmbH & Co. KG Exhaust gas turbocharger for a combustion engine

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EP1306534A2 (en) * 2001-10-24 2003-05-02 Hitachi, Ltd. Engine supercharging system
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Publication number Priority date Publication date Assignee Title
GB1181488A (en) * 1968-03-30 1970-02-18 Tsadok Zakon Method of and System for Supercharging the Main Diesel Engine of a Ship.
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DE102011008599A1 (en) * 2011-01-14 2012-07-19 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Exhaust gas stream controller for turbocharger of internal combustion engine, has pipe region connected with turbine output, so that exhaust gas stream of turbo charger is conducted by another pipe region into former pipe region
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DE102012207104A1 (en) * 2012-04-27 2013-10-31 Bosch Mahle Turbo Systems Gmbh & Co. Kg Exhaust gas turbocharger for an internal combustion engine

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