DE102005023004A1 - Internal combustion engine e.g. petrol engine, has turbine controlled by valve in by-pass line, where valve is actuated by control unit, which is stressed by charged air from tract, and air regulator unit is attached to control unit - Google Patents
Internal combustion engine e.g. petrol engine, has turbine controlled by valve in by-pass line, where valve is actuated by control unit, which is stressed by charged air from tract, and air regulator unit is attached to control unit Download PDFInfo
- Publication number
- DE102005023004A1 DE102005023004A1 DE102005023004A DE102005023004A DE102005023004A1 DE 102005023004 A1 DE102005023004 A1 DE 102005023004A1 DE 102005023004 A DE102005023004 A DE 102005023004A DE 102005023004 A DE102005023004 A DE 102005023004A DE 102005023004 A1 DE102005023004 A1 DE 102005023004A1
- Authority
- DE
- Germany
- Prior art keywords
- valve
- internal combustion
- combustion engine
- actuator
- control unit
- 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- Withdrawn
Links
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
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
- F02C9/16—Control of working fluid flow
- F02C9/18—Control of working fluid flow by bleeding, bypassing or acting on variable working fluid interconnections between turbines or compressors or their stages
-
- 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
-
- 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
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/02—EGR systems specially adapted for supercharged engines
- F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
- F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
-
- 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
Description
Die Erfindung betrifft eine Brennkraftmaschine mit einem Abgasturbolader nach dem Oberbegriff des Anspruches 1.The The invention relates to an internal combustion engine with an exhaust gas turbocharger according to the preamble of claim 1.
Es ist allgemein bekannt, dass bei Brennkraftmaschinen mit einem Abgasturbolader, der Turbine des Abgasturboladers eine Umgehungsleitung, ein sog. Bypass, zugeordnet ist. Dies betrifft überwiegend Turbinen mit starrer Turbinengeometrie, sog. Waste-Gate-Turbinen. Über diese Umgehungsleitung kann in Betriebspunkten mit einem großen Luftmassendurchsatz von der Brennkraftmaschine ausgestoßenes Abgas teilweise an der Turbine vorbeigeführt werden. Dieser Umgehungsleitung ist ein Ventil, ein sogenanntes Waste-Gate-Ventil, zugeordnet, welches die Umgehungsleitung teilweise oder vollständig öffnen oder sperren kann.It is generally known that in internal combustion engines with an exhaust gas turbocharger, the turbine of the exhaust gas turbocharger a bypass line, a so-called. Bypass, is assigned. This mainly affects turbines with rigid Turbine geometry, so-called waste gate turbines. About this bypass can be used at operating points with a large air mass flow rate of the internal combustion engine ejected Part of the exhaust gas are guided past the turbine. This bypass line is a valve, a so-called waste gate valve assigned, which the bypass can partially or completely open or lock.
Das Ventil wird über ein Stellglied gesteuert. Im Allgemeinen ist das Stellglied in Form einer sogenannten Druckdose ausgebildet. In einfacher Bauweise weist diese Druckdose neben einer ersten Druckkammer, in der ein bestimmter Druck entsprechend dem Ladedruck der Brennkraftmaschine herrscht, eine zweite Druckkammer auf, in der im Allgemeinen Umgebungsdruck herrscht. Die erste Druckkammer und die zweite Druckkammer sind über eine abdichtende Membran so voneinander getrennt, dass kein Druckausgleich zwischen den beiden Kammern möglich ist. Die zweite Druckkammer weist eine Rückstellfeder auf. Das Ventil ist über eine Stellstange mit der Membran verbunden. Die Rückstellfeder übt eine ihrer Vorspannung entsprechende Kraft auf die Membran aus. Ist die Umgehungsleitung vom Ventil geschlossen, so sind die an der Membran angreifenden Kräfte im Gleichgewicht, beziehungsweise die von der Rückstellfeder ausgeübte Kraft auf das Ventil ist größer als die von dem Druck der ersten Druckkammer ausgeübte Kraft auf die Membran.The Valve is over an actuator controlled. In general, the actuator is in shape formed a so-called pressure box. In a simple design this pressure box next to a first pressure chamber in which a specific Pressure corresponding to the boost pressure of the internal combustion engine prevails, a second pressure chamber, in the generally ambient pressure prevails. The first pressure chamber and the second pressure chamber are over a sealing membrane so separated from each other that no pressure compensation between the two chambers possible is. The second pressure chamber has a return spring. The valve is over a control rod connected to the membrane. The return spring exercises a their bias corresponding force on the membrane. Is the Bypass line closed by the valve, so are those acting on the diaphragm personnel in equilibrium, or the force exerted by the return spring force on the valve is greater than the force exerted by the pressure of the first pressure chamber on the membrane.
Das Ventil öffnet in dem Moment die Umgehungsleitung, in dem die aus dem Druck innerhalb der ersten Druckkammer resultierende Kraft die übrigen auf die Membran wirkenden Kräfte überwiegt.The Valve opens at the moment the bypass, in which the pressure from within the first pressure chamber resulting force the remaining acting on the membrane Forces outweigh.
Das Stellglied ist über Druckluft gesteuert, wobei die Druckluft über eine Ansteuerleitung dem Stellglied zugeführt wird, die aus einem Ansaugtrakt der Brennkraftmaschine stromab des Verdichters abzweigt. Das Stellglied wird in Abhängigkeit des Ladedruckes gesteuert. Die durch die Ansteuerleitung strömende Luftmasse übt auf die Membran und die Feder einen Druck aus, der ab einem bestimmten Ladedruck so groß ist, dass das Ventil in der Umgehungsleitung öffnet und Abgas an der Turbine vorbei in die Umgehungsleitung strömen kann.The Actuator is over Controlled compressed air, the compressed air via a control line to the actuator supplied is from an intake of the engine downstream of the Compressor branches off. The actuator is controlled depending on the boost pressure. The air mass flowing through the control line exerts on the Diaphragm and the spring exert a pressure starting from a certain boost pressure is so big that the valve in the bypass line opens and exhaust gas on the turbine can flow past in the bypass line.
In Abhängigkeit des Ladedruckes sind sowohl die Membran als auch die Feder des Stellgliedes mehr oder weniger stark beansprucht.In dependence the boost pressure are both the diaphragm and the spring of the actuator more or less stressed.
Bei Volllastbetriebspunkten der Brennkraftmaschine wirkt auf die Membran des Stellgliedes infolge des hohen Ladedruckes eine so große Kraft, dass das Stellglied schnell in seine Endposition gedrückt wird. Es wirken dabei auf die Membran und die Feder so große Kräfte, die einen hohen Verschleiß und damit eine Reduzierung der Lebensdauer des Stellglieds bewirken.at Full load operating points of the internal combustion engine acts on the membrane the actuator due to the high boost pressure such a large force that the actuator is quickly pushed to its final position. It act on it the diaphragm and the spring are so great forces that wear a lot and thus cause a reduction in the life of the actuator.
Eine Reduzierung der auf die Membran und die Feder wirkenden Kraft wird bereits über ein Taktventil erzielt, das von einer Motorsteuerung der Brennkraftmaschine gesteuert wird.A Reducing the force acting on the diaphragm and the spring already over a timing valve achieved by an engine control of the internal combustion engine is controlled.
Mit dem genannten Stellglied lassen sich neben dem Ventil der Waste-Gate-Turbine auch andere Ventile steuern, zum Beispiel ein Ventil einer nicht dargestellten Turbinen-Bremseinrichtung, einer sog. Turbo-Brake.With said actuator can be located next to the valve of the waste gate turbine also control other valves, for example, a valve of an unillustrated Turbine brake device, a so-called turbo brake.
Die Aufgabe der Erfindung ist es, die Lebensdauer eines Stellgliedes und damit auch die Standzeit des Stellgliedes zum Beispiel einer Waste-Gate-Turbine oder auch einer sogenannten Turbo-Brake auf kostengünstige und einfach Weise zu erhöhen. Insbesondere soll der Verschleiß des Stellgliedes für das Umgehungsventil verringert werden.The The object of the invention is the life of an actuator and thus also the service life of the actuator for example one Waste gate turbine or even a so-called turbo brake on inexpensive and easy way to increase. In particular, the wear of the Actuator for the bypass valve can be reduced.
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Anspruches 1 gelöst. Die Unteransprüche geben zweckmäßige Weiterbildungen an.These Task is according to the invention with the Characteristics of claim 1 solved. The dependent claims give expedient further education at.
Die erfindungsgemäße Brennkraftmaschine weist ein Stellglied zur Steuerung eines Ventils in einer einer Turbine zugeordneten Umgehungsleitung auf. Dem Stellglied ist ein Drosselelement zugeordnet. Durch die Zuordnung des Drosselelementes zu dem Stellglied wird die Geschwindigkeit der das Stellglied beaufschlagenden Luftmasse begrenzt. Dadurch wird bei hohen Ladedrücken der Impuls der Luftmasse und damit die auf das Stellglied beziehungsweise auf deren Membran und Feder wirkende Kraft verkleinert. Das Stellglied nimmt etwas langsamer seine Endposition ein. Im Volllastbereich der Brennkraftmaschine beziehungsweise bei einem maximalen Hub des Ventils wird die Verstellgeschwindigkeit des Stellgliedes durch den Einbau des Drosselelementes zwar langsamer, die statische Anpresskraft wird dadurch jedoch nicht beeinträchtigt. Bei kleinen Hüben des Ventils bleibt die Verstellgeschwindigkeit weitgehend erhalten, da nur eine kleine Luftmenge zur gewünschten Ansteuerung des Stellgliedes erforderlich ist.The inventive internal combustion engine has an actuator for controlling a valve in a turbine associated bypass line. The actuator is a throttle element assigned. By the assignment of the throttle element to the actuator is the speed of the air mass acting on the actuator limited. As a result, at high boost pressures the momentum of the air mass and thus the on the actuator or on the membrane and spring-acting force is reduced. The actuator takes something Slower his final position. In the full load range of the internal combustion engine or at a maximum lift of the valve is the adjustment speed the actuator by the installation of the throttle element, although slower, However, the static contact pressure is not affected. For small strokes of the valve, the adjustment speed is largely maintained, because only a small amount of air to the desired control of the actuator is required.
In einer Ausgestaltung nach Anspruch 2 ist das Drosselelement vorzugsweise stromauf des Stellgliedes vorgesehen.In an embodiment according to claim 2 the throttle element is preferably provided upstream of the actuator.
In einer weiteren Ausgestaltung nach Anspruch 3 ist das Drosselelement in Form einer kostengünstigen Konstantdrossel ausgebildet.In A further embodiment according to claim 3 is the throttle element in the form of a cost-effective Constant choke formed.
In einer weiteren Ausgestaltung nach Anspruch 4 ist das Drosselelement betriebspunktabhängig steuerbar gestaltet. Das Drosselelement kann hydraulisch, pneumatisch oder elektrisch steuerbar sein.In A further embodiment according to claim 4 is the throttle element operating point designed controllable. The throttle element can hydraulically, pneumatically or be electrically controllable.
Weitere Vorteile und zweckmäßige Ausführungen der Erfindung sind den Ansprüchen, der Beschreibung und der Zeichnung zu entnehmen.Further Advantages and expedient designs of the invention are the claims, to take the description and the drawing.
Die
Zeichnung zeigt eine schematisch vereinfachte Darstellung einer
erfindungsgemäßen Brennkraftmaschine
Im
Betrieb der Brennkraftmaschine
Der
Brennkraftmaschine
Der
Turbine
Eine
Ansteuerleitung
Das
Stellglied
Das
Ventil
Zwischen
der Schließstellung
und der maximalen Öffnungsstellung
kann das Ventil
Eine
teilweise oder vollständige Öffnung der Umgehungsleitung
Wirkt
ein bestimmter Ladedruck auf die Membran
Stromauf
des Stellgliedes
Eine Änderung
des Betriebspunktes der Brennkraftmaschine
Je
größer die
Geschwindigkeit der strömenden
Ladeluft, desto größer ist
der auf die Membran
Das
in der Ansteuerleitung
Die
maximale Haltekraft des Ventils
Sämtliche
Aggregate der Brennkraftmaschine
Das
Drosselelement
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005023004A DE102005023004A1 (en) | 2005-05-19 | 2005-05-19 | Internal combustion engine e.g. petrol engine, has turbine controlled by valve in by-pass line, where valve is actuated by control unit, which is stressed by charged air from tract, and air regulator unit is attached to control unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005023004A DE102005023004A1 (en) | 2005-05-19 | 2005-05-19 | Internal combustion engine e.g. petrol engine, has turbine controlled by valve in by-pass line, where valve is actuated by control unit, which is stressed by charged air from tract, and air regulator unit is attached to control unit |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005023004A1 true DE102005023004A1 (en) | 2006-07-27 |
Family
ID=36650677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102005023004A Withdrawn DE102005023004A1 (en) | 2005-05-19 | 2005-05-19 | Internal combustion engine e.g. petrol engine, has turbine controlled by valve in by-pass line, where valve is actuated by control unit, which is stressed by charged air from tract, and air regulator unit is attached to control unit |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102005023004A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007013612A1 (en) | 2007-03-22 | 2008-09-25 | Deutz Power Systems Gmbh | Internal combustion engine with an exhaust gas turbocharger |
WO2011095794A1 (en) * | 2010-02-04 | 2011-08-11 | Ma (Innovation) 2T4 Limited | Gas storage tank |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1981002607A1 (en) * | 1980-03-07 | 1981-09-17 | Bayerische Motoren Werke Ag | Device for adjusting the boost pressure of combustion engines |
DE2823255C2 (en) * | 1978-05-27 | 1986-07-17 | Robert Bosch Gmbh, 7000 Stuttgart | Device for determining the charging of an exhaust-gas-charged internal combustion engine |
DE3437497C2 (en) * | 1983-10-13 | 1990-02-08 | Honda Giken Kogyo K.K., Tokio/Tokyo, Jp | |
DE3730417C2 (en) * | 1986-09-10 | 1990-03-01 | Hitachi, Ltd., Tokio/Tokyo, Jp | |
DE10127392A1 (en) * | 2000-08-31 | 2002-03-28 | Avl List Gmbh | Diesel engine turbocharging system comprises a switching valve adjusting waste gate to charging air pressure against rev count for controlled exhaust line feed |
-
2005
- 2005-05-19 DE DE102005023004A patent/DE102005023004A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2823255C2 (en) * | 1978-05-27 | 1986-07-17 | Robert Bosch Gmbh, 7000 Stuttgart | Device for determining the charging of an exhaust-gas-charged internal combustion engine |
WO1981002607A1 (en) * | 1980-03-07 | 1981-09-17 | Bayerische Motoren Werke Ag | Device for adjusting the boost pressure of combustion engines |
DE3437497C2 (en) * | 1983-10-13 | 1990-02-08 | Honda Giken Kogyo K.K., Tokio/Tokyo, Jp | |
DE3730417C2 (en) * | 1986-09-10 | 1990-03-01 | Hitachi, Ltd., Tokio/Tokyo, Jp | |
DE10127392A1 (en) * | 2000-08-31 | 2002-03-28 | Avl List Gmbh | Diesel engine turbocharging system comprises a switching valve adjusting waste gate to charging air pressure against rev count for controlled exhaust line feed |
Non-Patent Citations (2)
Title |
---|
EBERTSHÄUSER, H.: Fluidtechnik von A bis Z. Mainz: Vereinigte Fachbuchverlage, 1989, S. 334 und 335, Stichwort: Stromventile |
EBERTSHÄUSER, H.: Fluidtechnik von A bis Z. Mainz:Vereinigte Fachbuchverlage, 1989, S. 334 und 335, Stichwort: Stromventile * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007013612A1 (en) | 2007-03-22 | 2008-09-25 | Deutz Power Systems Gmbh | Internal combustion engine with an exhaust gas turbocharger |
EP1975387A1 (en) | 2007-03-22 | 2008-10-01 | DEUTZ Power Systems GmbH | Valve system for an internal combustion engine with exhaust gas turbo charger |
WO2011095794A1 (en) * | 2010-02-04 | 2011-08-11 | Ma (Innovation) 2T4 Limited | Gas storage tank |
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OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
OP8 | Request for examination as to paragraph 44 patent law | ||
8130 | Withdrawal |