DE3826600A1 - Exhaust turbocharger with exhaust emission control device - Google Patents

Exhaust turbocharger with exhaust emission control device

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Publication number
DE3826600A1
DE3826600A1 DE3826600A DE3826600A DE3826600A1 DE 3826600 A1 DE3826600 A1 DE 3826600A1 DE 3826600 A DE3826600 A DE 3826600A DE 3826600 A DE3826600 A DE 3826600A DE 3826600 A1 DE3826600 A1 DE 3826600A1
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Prior art keywords
exhaust gas
exhaust
combustion chamber
sensor
engine
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DE3826600A
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German (de)
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DE3826600C2 (en
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Joern Martens
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0002—Controlling intake air
    • F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • 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
    • F02B37/02—Gas passages between engine outlet and pump drive, e.g. reservoirs
    • F02B37/025—Multiple scrolls or multiple gas passages guiding the gas to the pump drive
    • 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
    • F02B37/164—Control of the pumps by bypassing charging air the bypassed air being used in an auxiliary apparatus, e.g. in an air turbine
    • F02B37/166—Control of the pumps by bypassing charging air the bypassed air being used in an auxiliary apparatus, e.g. in an air turbine the auxiliary apparatus being a combustion chamber, e.g. upstream of turbine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2250/00—Combinations of different methods of purification
    • F01N2250/04—Combinations of different methods of purification afterburning and catalytic conversion
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Supercharger (AREA)

Abstract

The invention relates to an exhaust turbocharger with combustion chamber (2) incorporated into the housing (3), flame tube (4), injection nozzle (6), ignition device (18) and, inter alia, a fresh air inlet (16) through which precompressed fresh air, already diverted from the compressor, is introduced into the combustion chamber (2) which air together with any injected fuel and the combustion gases from the exhaust line (1) is burnt or reburnt. As is known, an exhaust turbocharger serves for increasing the power output of internal combustion engines by increasing the charge density. In the design according to the invention an improved >>response<< of the supercharger, that is a reduction of the otherwise usual delayed onset of the increase in the charge density when sudden increases in the engine speed are desired is obtained by the injection of fuel into the flame tube (4), controlled by the control electronics (8), from which tube the said combustion gases are then led to the exhaust turbine (A). Furthermore, if necessary, the exhaust gas temperature is increased. The soot fractions are burnt and catalytic exhaust emission control can thereby be performed even in 4-stroke diesel engines. The use of fuels obtained from cultivatable energy sources is possible. <IMAGE>

Description

Abgasturbolader sind seit langer Zeit bekannt und, speziell bei 4-Takt-Dieselmotoren, oft zur Anwendung gekommen. Die Abgase eines Motors (M) treiben dabei eine Abgas-Turbine (A) an, die über eine Welle (W) einen Verdichter (V) antreibt, der die Ladungsdichte des Motors (M) und damit dessen maximale Leistung vergrößert. Anlagen für die katalytische Reinigung von Abgasen aus Verbrennungskraftmaschinen (Motoren), -Katalysator-(K) genannt, werden auch schon seit geraumer Zeit zur Reduzierung bzw. Oxidation schädlicher Anteile der Verbrennungsgase (NO₂, CO, C mH n) in weniger schädliche Verbindungen (CO₂, H₂O, N₂) genutzt. Die Verwendung von Katalysatoren stieß, speziell beim 4-Takt-Dieselmotor, aber immer noch auf Probleme: Der relativ hohe Rußanteil der Verbrennungsgase führte zum regelrechten Verstopfen des Katalysators und, aus dem gleichen Grund, zum Ausfall des Sensors (11) für die Abgaszusammensetzung und zur Behinderunge des Abgas­ stromes. Zudem liegen die Abgastemperaturen der Diesel­ motoren weitaus niedriger, als die vergleichbarer Motoren, die mit dem "Otto-Treibstoff" Benzin betrieben werden, und deren Abgase relativ problemlos bis zu 90% mittels Katalysator zu entgiften sind. Das in einen Katalysator (K) einströmende Abgas erreicht also beim Dieselmotor in vielen Betriebszuständen (z. B. im Leer­ lauf) nicht einmal die notwendige Reaktionstemperatur. Die Leistungserhöhung eines 4-Takt-Dieselmotors durch die Erhöhung der Ladungsdichte des Motors mittels Abgasturbolader brachte zudem, wegen der, bei notwendig werdender, plötzlicher Drehzahlerhöhung des Motors, verzögert eingesetzten Abgasturbinen-Drehzahlerhöhung eine Verzögerung der Aufladung durch den Verdichter und damit eine verzögerte Erhöhung der Ladungsdichte und der Leistung des Motors mit sich. Konnte durch eine geschickte Anpassung der Brennstoff-Einspritzanlage des betreffenden Motors eine übermäßig hohe Brennstoff- Einspritzmenge in den Brennraum und damit ein extremer Schadstoff-Ausstoß (Ruß) noch vermieden werden, so kam es bei einer notwendigen, plötzlichen Drehzahlerhöhung jedoch immer noch zu einer verzögert einsetzenden Erhöhung der Ladungsdichte und damit der potentiellen Leistung des betreffenden Motors. Kleinere, und damit "schneller ansprechende" Abgasturbolader brachten nur wenig Besserung. Der relativ starke Rußausstoß des Motors mit Abgasturbolader machte nicht nur den Einsatz eines Katalysators herkömmlicher, bewährter Bauart unmöglich (s. o.), sondern stellte schon, für sich betrachtet, eine Belastung für die Umwelt dar. Rußfilter, die den Ruß sammeln und so von Katalysator und Umwelt fernhalten, und die in bestimmten Zeitabständen zur Erhaltung ihrer Reinigungswirkung immer wieder, z. B. durch Abbrennen, von der Rußschicht gereinigt werden müssen, zeigten sich bisher als relativ kompliziert, teuer und störungsanfällig. Zudem wurde der mechanische Wirkungsgrad nicht unerheblich verschlechtert.Exhaust gas turbochargers have been known for a long time and, especially for 4-stroke diesel engines, often used came. The exhaust gases from an engine(M) do it an exhaust gas turbine(A) at that over a wave(W)  a compressor(V) drives the charge density of the motor(M) and thus its maximum performance enlarged. Equipment for catalytic cleaning of exhaust gases from internal combustion engines (engines), -Catalyst-(K) have also been mentioned since some time for reduction or oxidation harmful portions of the combustion gases (NO₂, CO, C mH n) used in less harmful compounds (CO₂, H₂O, N₂). The use of catalysts came up, especially with 4-stroke diesel engine, but still with problems: The relatively high soot content of the combustion gases led to downright clogging of the catalyst and, from the same reason for sensor failure (11) for the Exhaust gas composition and to obstruct the exhaust gas current. In addition, the exhaust gas temperatures of the diesel are engines far lower than the comparable ones Engines that run on "petrol" petrol and their exhaust gases are relatively easy up to 90% detoxified by means of a catalyst. That in one  catalyst(K) inflowing exhaust gas thus reaches at Diesel engine in many operating states (e.g. when empty not even the necessary reaction temperature. The performance increase of a 4-stroke diesel engine through the increase in the charge density of the engine by means of Exhaust gas turbocharger also brought, because of, when necessary sudden, sudden increase in engine speed, Delayed increase in exhaust turbine speed a delay in charging by the compressor and thus a delayed increase in charge density and the power of the engine. Could be through a clever adjustment of the fuel injection system of the engine has an excessively high fuel Injection quantity in the combustion chamber and thus an extreme one Pollutant emissions (soot) can still be avoided, so came there is a necessary, sudden speed increase however still to a delayed onset Increasing the charge density and thus the potential Performance of the engine in question. Smaller, and with that "faster responding" turbochargers only brought little improvement. The relatively strong soot emission of the Engines with exhaust gas turbochargers were not only used a catalyst of conventional, proven design impossible (see above), but already, for yourself considered, is a burden on the environment. Soot filter, that collect the soot and so of the catalyst and the environment keep away, and at certain time intervals  Maintaining their cleaning effect again and again, e.g. B. by burning off the soot layer have been relatively complicated so far, expensive and prone to failure. In addition, the mechanical Efficiency deteriorated not inconsiderably.

Die erfindungsgemäße Konstruktion bietet dagegen eine Abgasreinigungsvorrichtung und einen hervorragenden, "schnell ansprechenden" Abgasturbolader in einem Bauteil.In contrast, the construction according to the invention offers a Emission control device and an excellent, "fast responding" turbocharger in one Component.

Die Verbrennungsgase (Abgas) aus dem Motor (M) werden während des "Auspuff-Taktes" jeweils in die Abgasleitung (1) ausgestoßen, und von dieser in die Brennkammer (2) geleitet, die integriertes Bestandteil des Gehäuses (3) des Abgasturboladers ist. Die Abgase vermischen sich mit der, durch den Frischluft-Einlaß (16) über den Frischluft-Kanal (17) aus der Frischluft- Leitung (15) nachströmenden Frischluft, wodurch, u. a., der Rußanteil der Verbrennungsgase verbrannt wird. Durch die Einspritz-Düse (6) in das Flammrohr (4) eingespritzter Brennstoff wird mit Frischluft von der herkömmlichen elektrischen Zündvorrichtung (18) gezündet. Der, aus dem Flammrohr (4) austretende, heiße Abgasstrahl beschleunigt die Verbrennung des Rußes, erhöht die Temperatur der in den Katalysator (K) einströmenden Abgase und erhöht zudem die Drehzahl der herkömmlichen Abgastur­ bine (A), die Drehzahl des Verdichters (V), und damit die Ladungsdichte, ohne, daß die Abgasturbine (A) von den Verbrennungsgasen des Motors (M) angetrieben werden müßte. Die Regelelektronik (8) ist so geschaltet und mit der Einspritzpumpe (7), den Sensoren (10, 9, 11, 12, 13, 14) für die Abgaszusammensetzung, Abgastemperatur, Position der Kurbelwelle, dem Druck im Ansaugtrakt und für die Gashebelstellung so verbunden, daß im Falle einer notwendigen, plötzlichen Drehzahlerhöhung des Motors (M), gesteuert und den Gashebel, die Brennstoffeinspritzung von der Einspritzpumpe (7) über die Einspritz-Düse (6) in das Flammrohr (4) und die Zündung so vorgenommen wird, daß hieraus eine praktisch sofortige Drehzahlerhöhung der Abgasturbine (A), des Verdichters (V), und damit eine Erhöhung der Ladungsdichte des Motors (M) resultiert, die zu einer fast sofortigen Steigerung der mechanischen Leistung des Motors (M), bei jeweils entsprechend über die herkömmliche Einspritzanlage des Motors (M) erhöhter Brennstoff-Einspritzmenge in die Brennräume des Motors (M) führt. Diese Drehzahländerung wird durch die Änderung der Stellung des Gashebels, die über den Sensor (14) erfaßt wird, gesteuert. Die Leistung/Drehzahl des Motors (M) wird somit praktisch gleichzeitig mit der von Bedienungspersonal herbeigeführten Änderung der Gashebelstellung ohne die, sonst für Abgasturbolader typische Verzögerung erhöht. Ein Teil der vom Verdichter komprimierten Frischluft wird in die Frischluft- Leitung (15) abgezweigt, von wo sie über den Frischluft- Kanal (17) und den Frischluft-Einlaß (16) in die Brenn­ kammer (2) geleitet wird. Zudem wird bei der erfindungsgemäßen Konstruktion durch die Regelelektronik (8) die Einspritzpumpe (7) zur Einspritzung und die Zünd­ vorrichtung (18) betätigt, sollte die Abgastemperatur, die über den Sensor (10) gemessen wird, unter den kritischen, d. h., den für eine katalytische Abgasreinigung notwendigen Minimalwert sinken. Dies kann in bestimmten Betriebsphasen des Motors (M) (Leerlauf, Warmlaufphase, usw.) der Fall sein. Die erfindungsgemäße Konstruktion ist zudem, aufgrund ihrer relativ einfachen Gestaltung, auch für die Nachrüstung von herkömmlichen Dieselmotoren und Motoren nach meinen Anmeldungen DE 37 15 750 und DE 38 02 836, zusammen mit dem herkömmlichen Katalysator (K) für die restliche Entgiftung der Verbrennungsgase bis unter, auch die strengsten gesetzlichen Vorschriften erfüllende Grenzwerte, geeignet. Die mögliche, sofortige Erhöhung der Ladungsdichte macht auch den Einsatz bei Motoren, bei denen es auf eine sehr schnelle Drehzahl- Erhöhung bei einer Änderung der Gashebelstellung ankommt, d. h., wo ein "sehr gutes Ansprechverhalten" erwünscht ist, wie z. B., bei Wettbewerbsfahrzeugen, interessant. So ist auch durchaus der Einsatz der erfindungsgemäßen Konstruktion bei 4-Takt-Otto und Zweitakt-Motoren also, nicht zuletzt, bei Motoren, die als 4-Takt-Motoren mit nicht selbstzündenden Brennstoffen entsprechend meinen Anmeldungen DE 37 15 750 bzw. DE 38 02 836 konzipiert sind, interessant. The combustion gases (exhaust gas) from the engine (M) are expelled into the exhaust pipe ( 1 ) during the "exhaust cycle", and from there into the combustion chamber ( 2 ), which is an integral part of the housing ( 3 ) of the exhaust gas turbocharger . The exhaust gases mix with the fresh air flowing in through the fresh air inlet ( 16 ) via the fresh air duct ( 17 ) from the fresh air line ( 15 ), as a result of which, among other things, the soot portion of the combustion gases is burned. Fuel injected into the flame tube ( 4 ) through the injection nozzle ( 6 ) is ignited with fresh air by the conventional electrical ignition device ( 18 ). The hot exhaust gas jet emerging from the flame tube ( 4 ) accelerates the combustion of the soot, increases the temperature of the exhaust gases flowing into the catalytic converter (K) and also increases the speed of the conventional exhaust gas turbine (A) , the speed of the compressor (V) , and thus the charge density, without the exhaust gas turbine (A) having to be driven by the combustion gases of the engine (M) . The control electronics ( 8 ) are switched in this way and with the injection pump ( 7 ), the sensors ( 10, 9, 11, 12, 13, 14 ) for the exhaust gas composition, exhaust gas temperature, position of the crankshaft, the pressure in the intake tract and for the throttle position connected that in the event of a sudden sudden increase in engine speed (M) , controlled and the throttle control, the fuel injection from the injection pump ( 7 ) via the injection nozzle ( 6 ) into the flame tube ( 4 ) and the ignition is carried out in this way, that this results in a practically immediate increase in the speed of the exhaust gas turbine (A) , the compressor (V) , and thus an increase in the charge density of the engine (M) , which leads to an almost immediate increase in the mechanical output of the engine (M) , each correspondingly above the conventional injection system of the engine (M) leads increased fuel injection quantity into the combustion chambers of the engine (M) . This change in speed is controlled by the change in the position of the throttle lever, which is detected by the sensor ( 14 ). The power / speed of the engine (M) is thus increased practically simultaneously with the change in the throttle lever position brought about by operating personnel without the deceleration which is otherwise typical for exhaust gas turbochargers. Part of the compressed air compressed by the compressor is branched into the fresh air line ( 15 ), from where it is passed through the fresh air channel ( 17 ) and the fresh air inlet ( 16 ) into the combustion chamber ( 2 ). In addition, in the construction according to the invention, the injection pump ( 7 ) for injection and the ignition device ( 18 ) are actuated by the control electronics ( 8 ), the exhaust gas temperature, which is measured by the sensor ( 10 ), should be below the critical, ie, for a catalytic exhaust gas cleaning necessary minimum value decrease. This can be the case in certain operating phases of the engine (M) (idling, warm-up phase, etc.). The construction according to the invention is, because of its relatively simple design, also for retrofitting conventional diesel engines and engines according to my applications DE 37 15 750 and DE 38 02 836, together with the conventional catalyst (K) for the remaining detoxification of the combustion gases up to below , also meet the most stringent legal requirements. The possible, immediate increase in the charge density also makes it suitable for engines in which a very rapid increase in speed when changing the throttle position is required, ie where "very good response" is desired, such as, for. B., in competition vehicles, interesting. So is the use of the construction according to the invention in 4-stroke petrol and two-stroke engines, not least, in engines that as 4-stroke engines with non-self-igniting fuels according to my applications DE 37 15 750 and DE 38 02 836 are designed, interesting.

Liste der Bezugszeichen List of reference numbers

Claims (2)

1. Abgasturbolader mit Abgasreinigungsvorrichtung für Verbrennungskraftmaschinen mit einer Abgas-Turbine (A), einem Verdichter (V), einer Welle (W) als starre mecha­ nische Verbindung zwischen Abgas-Turbine (A) und Ver­ dichter (V) und einer katalytischen Abgasreinigungs­ anlage, dadurch gekennzeichnet, daß in die Abgasleitung (1) eine Brennkammer (2) zwischen dem Auslaß des Motors (M) und der Abgas-Turbine (A) eingesetzt ist und die Brennkammer (2) und die Abgas- Turbine (A) integrierte Bestandteile des Gehäuses (3) sind, und das Gehäuse (3) so gestaltet ist, daß die imaginäre Mittelachse (m) der Abgasleitung (1) etwa tangential zur imaginären Kurve (C) durch die Quer­ schnittsmittelpunkte (Q) der Brennkammer (2) verläuft, und ein, einseitig geschlossenes Flammrohr (4) so in das Gehäuse (3) eingesetzt und damit verbunden ist, daß seine Längsachse tangential zur imaginären Kurve (C) verläuft, und es zur Brennkammer (2) geöffnet ist, und im Flammrohr (4) eine Einspritz-Düse (6) so angeordnet ist, daß die Brennstoffeinspritzung dadurch im Mittel auch etwa tangential zur Kurve (C) erfolgt und, im Zentrum der etwa ringförmigen Brennkammer (4), die Abgas-Turbine (A) so angeordnet und so gestaltet ist, daß die Verbrennungsgase aus der Brennkammer (2) tangential einströmen und axial ausströmen können. 1. Exhaust gas turbocharger with exhaust gas cleaning device for internal combustion engines with an exhaust gas turbine (A) , a compressor (V) , a shaft (W) as a rigid mechanical connection between the exhaust gas turbine (A) and compressor (V) and a catalytic exhaust gas cleaning system , characterized in that a combustion chamber ( 2 ) is inserted between the outlet of the engine (M) and the exhaust gas turbine (A) and the combustion chamber ( 2 ) and the exhaust gas turbine (A) are integrated components in the exhaust line ( 1 ) of the housing ( 3 ), and the housing ( 3 ) is designed so that the imaginary central axis (m) of the exhaust pipe ( 1 ) runs approximately tangentially to the imaginary curve (C) through the cross-sectional centers (Q) of the combustion chamber ( 2 ) , and a flame tube ( 4 ) which is closed on one side is inserted into the housing ( 3 ) and connected to it in such a way that its longitudinal axis is tangent to the imaginary curve (C) and it is open to the combustion chamber ( 2 ), and in the flame tube ( 4 ) an injection nozzle ( 6 ) is arranged so that the fuel injection thereby takes place approximately tangentially to the curve (C) and, in the center of the approximately annular combustion chamber ( 4 ), the exhaust gas turbine (A) arranged and is designed so that the combustion gases can flow in tangentially from the combustion chamber ( 2 ) and can flow out axially. 2. Abgasturbolader mit Abgasreinigungsvorrichtung gemäß dem Hauptanspruch, dadurch gekennzeichnet, daß die Regelelektronik (8), eine Brennstoffeinspritzpumpe (7), ein Sensor (10) für die Abgastemperatur, ein Sensor (9) für den Abgas- Druck, ein Sensor (11) für die Abgaszusammensetzung, ein Sensor (12) für die Position und die Dreh­ frequenz der Kurbelwelle (KW) des Motors (M), ein Sensor (14) für die Gashebelposition und ein Sensor (13) für den Druck im Ansaugtrakt so geschaltet und miteinander verbunden sind, daß die Brennstoff­ einspritzung über die Einspritz-Düse (6) in die Brennkammer (2), bezüglich ihrer Menge und der Zeit, in Abhängigkeit von einer minimal einzuhaltenden Abgastemperatur und dem, bezüglich der Gashebel­ stellung und Drehfrequenz des Motors (M) optimalen, zu erreichenden Druck im Ansaugtrakt erfolgt.2. Exhaust gas turbocharger with exhaust gas purification device according to the main claim, characterized in that the control electronics ( 8 ), a fuel injection pump ( 7 ), a sensor ( 10 ) for the exhaust gas temperature, a sensor ( 9 ) for the exhaust gas pressure, a sensor ( 11 ) for the exhaust gas composition, a sensor ( 12 ) for the position and the rotational frequency of the crankshaft (KW) of the engine (M) , a sensor ( 14 ) for the throttle position and a sensor ( 13 ) for the pressure in the intake tract switched and with each other are connected that the fuel injection via the injection nozzle ( 6 ) into the combustion chamber ( 2 ), in terms of their quantity and time, as a function of a minimum exhaust gas temperature to be maintained and that, in relation to the throttle position and rotational frequency of the engine (M) optimal pressure to be achieved in the intake tract.
DE3826600A 1988-08-05 1988-08-05 Exhaust gas turbocharger with exhaust gas cleaning device Expired - Fee Related DE3826600C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3826600A DE3826600C2 (en) 1988-08-05 1988-08-05 Exhaust gas turbocharger with exhaust gas cleaning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3826600A DE3826600C2 (en) 1988-08-05 1988-08-05 Exhaust gas turbocharger with exhaust gas cleaning device

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4120196A1 (en) * 1991-06-19 1992-12-24 Audi Ag Exhaust recirculation ratiometer esp. for vehicular combustion engine - opens pneumatic recirculation valve under electronic control, responsive to intake temps., engine speed and load
DE19503748A1 (en) * 1995-02-04 1996-06-20 Daimler Benz Ag IC engine with turbocharger in exhaust pipe
EP1074714A1 (en) * 1999-08-06 2001-02-07 Renault Improved turbocharged engine
EP1215384A3 (en) * 2000-12-12 2003-08-20 Man Nutzfahrzeuge Ag Method for improving the response of a turbo charger
WO2004027236A1 (en) * 2002-09-20 2004-04-01 The Regents Of The University Of California Staged combustion with piston engine and turbine engine supercharger
US6883308B2 (en) * 2000-06-14 2005-04-26 Volvo Lastvagnar Ab Urea injector in exhaust gas turbine housing
US6895745B2 (en) * 2003-04-04 2005-05-24 Borgwarner Inc. Secondary combustion for regeneration of catalyst and incineration of deposits in particle trap of vehicle exhaust
US6957535B2 (en) 2002-05-11 2005-10-25 Daimlerchrysler Ag Variable exhaust-gas turbocharger with an auxiliary drive for an internal combustion engine
US8596062B2 (en) * 2004-04-05 2013-12-03 Toyota Jidosha Kabushiki Kaisha Exhaust gas control apparatus and exhaust gas control method for internal combustion engine
DE102014003390B4 (en) 2014-03-07 2023-05-11 Audi Ag drive device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10221014A1 (en) * 2002-05-11 2003-11-27 Daimler Chrysler Ag Variable exhaust gas turbocharger of an internal combustion engine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3120739A1 (en) * 1980-05-28 1982-03-18 Nissan Motor Co., Ltd., Yokohama, Kanagawa "TURBOCHARGER FOR INTERNAL COMBUSTION ENGINES"
DE3715750A1 (en) * 1987-05-12 1988-11-24 Joern Martens Internal-Combustion Engine
DE3802836A1 (en) * 1988-02-01 1989-08-03 Joern Martens Internal combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3120739A1 (en) * 1980-05-28 1982-03-18 Nissan Motor Co., Ltd., Yokohama, Kanagawa "TURBOCHARGER FOR INTERNAL COMBUSTION ENGINES"
DE3715750A1 (en) * 1987-05-12 1988-11-24 Joern Martens Internal-Combustion Engine
DE3802836A1 (en) * 1988-02-01 1989-08-03 Joern Martens Internal combustion engine

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4120196A1 (en) * 1991-06-19 1992-12-24 Audi Ag Exhaust recirculation ratiometer esp. for vehicular combustion engine - opens pneumatic recirculation valve under electronic control, responsive to intake temps., engine speed and load
DE19503748A1 (en) * 1995-02-04 1996-06-20 Daimler Benz Ag IC engine with turbocharger in exhaust pipe
EP1074714A1 (en) * 1999-08-06 2001-02-07 Renault Improved turbocharged engine
FR2797306A1 (en) * 1999-08-06 2001-02-09 Renault IMPROVED TURBOCHARGER
US6883308B2 (en) * 2000-06-14 2005-04-26 Volvo Lastvagnar Ab Urea injector in exhaust gas turbine housing
EP1215384A3 (en) * 2000-12-12 2003-08-20 Man Nutzfahrzeuge Ag Method for improving the response of a turbo charger
US6957535B2 (en) 2002-05-11 2005-10-25 Daimlerchrysler Ag Variable exhaust-gas turbocharger with an auxiliary drive for an internal combustion engine
WO2004027236A1 (en) * 2002-09-20 2004-04-01 The Regents Of The University Of California Staged combustion with piston engine and turbine engine supercharger
US7040094B2 (en) 2002-09-20 2006-05-09 The Regents Of The University Of California Staged combustion with piston engine and turbine engine supercharger
USRE42875E1 (en) 2002-09-20 2011-11-01 Lawrence Livermore National Security, Llc Staged combustion with piston engine and turbine engine supercharger
US6895745B2 (en) * 2003-04-04 2005-05-24 Borgwarner Inc. Secondary combustion for regeneration of catalyst and incineration of deposits in particle trap of vehicle exhaust
US8596062B2 (en) * 2004-04-05 2013-12-03 Toyota Jidosha Kabushiki Kaisha Exhaust gas control apparatus and exhaust gas control method for internal combustion engine
DE102014003390B4 (en) 2014-03-07 2023-05-11 Audi Ag drive device

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