WO2014195345A1 - Internal combustion engine and method for operating same - Google Patents

Internal combustion engine and method for operating same Download PDF

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Publication number
WO2014195345A1
WO2014195345A1 PCT/EP2014/061552 EP2014061552W WO2014195345A1 WO 2014195345 A1 WO2014195345 A1 WO 2014195345A1 EP 2014061552 W EP2014061552 W EP 2014061552W WO 2014195345 A1 WO2014195345 A1 WO 2014195345A1
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WO
WIPO (PCT)
Prior art keywords
internal combustion
combustion engine
compressed air
cylinders
charging device
Prior art date
Application number
PCT/EP2014/061552
Other languages
German (de)
French (fr)
Inventor
Peter Holand
Markus ZANGERLE
Stefan Karner
Original Assignee
Man Diesel & Turbo Se
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Man Diesel & Turbo Se filed Critical Man Diesel & Turbo Se
Priority to CH01684/15A priority Critical patent/CH709872B1/en
Priority to KR1020157036759A priority patent/KR101956974B1/en
Priority to JP2016517284A priority patent/JP6400686B2/en
Priority to CN201480032138.8A priority patent/CN105247188A/en
Priority to FI20155898A priority patent/FI127828B/en
Publication of WO2014195345A1 publication Critical patent/WO2014195345A1/en

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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
    • F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
    • F02B37/10—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump at least one pump being alternatively or simultaneously driven by exhaust and other drive, e.g. by pressurised fluid from a reservoir or an engine-driven pump
    • 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
    • F02B21/00—Engines characterised by air-storage chambers
    • 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
    • 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
    • F02B29/02—Other fluid-dynamic features of induction systems for improving quantity of charge
    • 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/44—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
    • 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

Definitions

  • the invention relates to an internal combustion engine according to the preamble of claim 1. Furthermore, the invention relates to a method for operating an internal combustion engine.
  • the engine When starting the internal combustion engine, the engine must first start up. For this purpose, a defined period of time is required, depending on the design of the internal combustion engine. It is advantageous if the time required to run the internal combustion engine is as short as possible. This is the case in particular in so-called offshore vessels in order to ensure the maneuverability of the ship within a very short time.
  • the present invention has the object to provide a novel internal combustion engine.
  • This object is achieved by an internal combustion engine according to claim 1.
  • the internal combustion engine according to the invention has at least one compressed air reservoir which can be shut off by a valve, compressed air stored in the or each compressed-air reservoir for starting up the internal combustion engine by opening the or each valve in the direction of the cylinders in order to accelerate the engine run-up. With the internal combustion engine according to the invention, the time required for running up the internal combustion engine can be minimized.
  • the compressed air can be introduced into a charge air line leading to the cylinders of the internal combustion engine and / or directly into the cylinders of the internal combustion engine.
  • the compressed air is additionally or alternatively introduced into a charge air line extending between a compressor of the charging device and a charge air cooler of the charging device and / or directly into a compressor of the charging device.
  • a fuel supply to the engine is increased to accelerate the run-up of the internal combustion engine.
  • 1 shows a diagram of a first internal combustion engine according to the invention
  • 2 shows a diagram of a second internal combustion engine according to the invention
  • 3 shows a diagram of a third internal combustion engine according to the invention
  • 4 shows a diagram of a fourth internal combustion engine according to the invention
  • 5 shows a schematic of a fifth internal combustion engine according to the invention
  • 6 shows a diagram of a sixth internal combustion engine according to the invention.
  • the present invention relates to an internal combustion engine and a method for operating an internal combustion engine.
  • FIG. 1 shows a first exemplary embodiment of an internal combustion engine 10 according to the invention, which comprises a plurality of cylinders 11 and a charging device 12.
  • the charging device 12 has a turbine 13, in which exhaust gas, which leaves the cylinder 1 1 of the internal combustion engine 10, is relaxed. In the relaxation of the exhaust gas in the turbine 13 recovered energy is used in a compressor 14 of the supercharger 12 to compress the cylinders 1 1 to be supplied charge air in the compressor 14. Between the compressor 14 of the charging device 12 and the cylinder 1 1 of the internal combustion engine 10 while a charge air cooler 15 of the charging device 12 is connected to cool the compressed charge air before the introduction of the same into the cylinders 1 1 of the internal combustion engine 10.
  • the internal combustion engine 10 of Figure 1 has a pressure vessel 16, which is associated with a valve 17, wherein when the valve 17 is closed, in the pressure vessel 16 held compressed air can not escape from the pressure vessel 16. In contrast, when the valve 17 is opened, the compressed air stored in the pressure vessel 16 can escape from the same.
  • the compressed air stored in the pressure vessel 16 can be conducted to open the valve 17 in the direction of the cylinders 11 of the internal combustion engine 10 to accelerate the run-up of the internal combustion engine 10. It is provided in the embodiment of FIG. 1, to introduce the compressed air directly into the compressor 14 of the charging device 12. Simultaneously with the opening of the valve 17 of the compressed air tank 16, a fuel supply to the internal combustion engine 10 is increased in order to accelerate the run-up of the internal combustion engine.
  • the opening of the valve 17 of the compressed air tank 16 and thus the conduction of the compressed air in the direction of the cylinder 1 1 of the engine 10 and increasing the fuel supply to the engine 10 is preferably carried out directly with or immediately after activation of a starting device of the internal combustion engine 10th
  • Fig. 2 shows an alternative embodiment of an internal combustion engine 10 according to the invention, in which for accelerating the run-up of the internal combustion engine 10, the stored compressed air in the pressure vessel 16 by opening the valve 17 in a charge air line 18 can be introduced, extending between the compressor 14 and the Charge air cooler 15 of the charging device 12 extends. Simultaneously with the opening of the valve 17 of the compressed air tank 16, a fuel supply to the internal combustion engine 10 is increased in order to accelerate the run-up of the internal combustion engine 10.
  • Fig. 3 shows a further variant of an internal combustion engine 10 according to the invention, in which the compressed air stored in the pressure vessel 16 with open valve 17 to accelerate the run-up of the internal combustion engine 10 on the one hand in a charge air line 19 can be introduced, extending between the intercooler 15 and the cylinders 1 1 the internal combustion engine extends, and on the other hand indirectly on the cylinder 1 1 of the internal combustion engine 10 can be introduced.
  • the compressed air either exclusively indirectly in the cylinder 1 1 or in the charge air line 19. Simultaneously with the opening of the valve 17 of the compressed air tank 16, a fuel supply to the internal combustion engine 10 is increased in order to accelerate the run-up of the internal combustion engine 10.
  • the compressed air stored in the pressure vessel 16 is introduced with the valve 17 open on the one hand directly into the compressor 14 of the charging device 12 and on the other hand into the charge air line 19 extending between the charge air cooler 15 and the cylinders 11 can be to accelerate the run-up of the internal combustion engine.
  • a fuel supply to the internal combustion engine 10 is increased in order to accelerate the run-up of the internal combustion engine 10.
  • FIG. 5 shows a variant in which the compressed air stored in the pressure vessel 16 can be conducted in four directions in the direction of the cylinders 11 with the valve 17 open, namely directly into the compressor 14 of the charging device 12, into the charge air lines 18 and 19 and directly into the cylinder 1 1 of the internal combustion engine 10. It should be noted at this point that any combination of these feed points for the compressed air can be used. Thus, it is possible to store the compressed air stored in the pressure vessel 16 at one, at any two, at any three or at all four in FIG. 5
  • the internal combustion engines of FIGS. 1 to 5 are in each case turbocharged internal combustion engines whose charging device 12 comprises a single exhaust gas turbocharger with a turbine 13 and a compressor 14.
  • the charging device 12 it is also possible for the charging device 12 to have a multi-stage design, that is to say a plurality of exhaust gas turbochargers and thus several turbines as well as a plurality of compressors.
  • the invention of FIG. 6 can be used on a non-supercharged internal combustion engine 10, wherein in such a non-supercharged internal combustion engine 10 to accelerate the run-up of the same in the pressure vessel 16 held compressed air with the valve open 17 in the direction of the cylinder 1 1 of the internal combustion engine 10 is, in accordance with FIG. 6 in a leading to the cylinders 1 1 charge air line 20 and / or directly into the cylinder 1 first
  • more than one pressure vessel 16 may be present. It is thus possible to assign a separate pressure vessel 16 with a separate valve 17 to each feed point for the compressed air. It is also possible to assign a common valve 17 to a plurality of pressure vessels 16.
  • compressed air stored in at least one compressed-air reservoir 16 is thus directed in the direction of the cylinders 11 of the internal combustion engine 10. Simultaneously with the opening of the valve 17 of the compressed air tank 16, a fuel supply to the cylinders 1 1 of the internal combustion engine 10 is preferably increased.
  • the pressure level of the compressed air which is directed to accelerate the run-up of the internal combustion engine 10 in the direction of the cylinder 1 1 thereof, in particular between 5 bar and 30 bar.

Abstract

Internal combustion engine (10) comprising a plurality of cylinders (11) and at least one compressed air reservoir (16) that can be closed off by a valve (17). For running up the internal combustion engine (10), compressed air stored in the one or each compressed air reservoir (16) can be conducted in the direction of the cylinders (11) of the internal combustion engine by opening the one or each valve (17) in order to speed up the run-up of the internal combustion engine.

Description

Brennkraftmaschine und Verfahren zum Betreiben derselben  Internal combustion engine and method for operating the same
Die Erfindung betrifft eine Brennkraftmaschine nach dem Oberbegriff des Anspruchs 1 . Des Weiteren betrifft die Erfindung ein Verfahren zum Betreiben einer Brennkraftmaschine. The invention relates to an internal combustion engine according to the preamble of claim 1. Furthermore, the invention relates to a method for operating an internal combustion engine.
Aus der Praxis sind Brennkraftmaschinen mit und ohne Abgasturboaufladung be- kannt. Bei aufgeladenen Brennkraftmaschinen wird Abgas, welches die Zylinder der Brennkraftmaschine verlässt, in mindestens einer Turbine entspannt, wobei hierbei gewonnene Energie in mindestens einem Verdichter genutzt wird, um den Zylindern der Brennkraftmaschine zuzuführende Ladeluft zu verdichten. From practice, internal combustion engines with and without turbocharging are known. In supercharged internal combustion engines, exhaust gas leaving the cylinders of the internal combustion engine is expanded in at least one turbine, in which case energy obtained in at least one compressor is used to compress charge air to be supplied to the cylinders of the internal combustion engine.
Beim Starten der Brennkraftmaschine muss der Motor zunächst hochlaufen. Hierzu wird abhängig von der Bauart der Brennkraftmaschine eine definierte Zeitspanne benötigt. Dabei ist es von Vorteil, wenn die zum Hochlaufen der Brennkraftmaschine benötigte Zeit möglichst kurz ist. Dies ist insbesondere bei sogenannten Offshore-Schiffen der Fall, um innerhalb kürzester Zeit die Manövrierfähigkeit des Schiffes zu gewährleisten. When starting the internal combustion engine, the engine must first start up. For this purpose, a defined period of time is required, depending on the design of the internal combustion engine. It is advantageous if the time required to run the internal combustion engine is as short as possible. This is the case in particular in so-called offshore vessels in order to ensure the maneuverability of the ship within a very short time.
Hiervon ausgehend liegt der vorliegenden Erfindung die Aufgabe zugrunde, eine neuartige Brennkraftmaschine zu schaffen. Diese Aufgabe wird durch eine Brennkraftmaschine nach Anspruch 1 gelöst. Die erfindungsgemäße Brennkraftmaschi- ne weist mindestens einen von einem Ventil absperrbaren Druckluftbehälter auf, wobei zum Hochlaufen der Brennkraftmaschine in dem oder jedem Druckluftbehälter gespeicherte Druckluft durch Öffnen des oder jedes Ventils in Richtung auf die Zylinder leitbar ist, um das Hochlaufen der Brennkraftmaschine zu beschleunigen. Mit der erfindungsgemäßen Brennkraftmaschine kann die zum Hochlaufen der Brennkraftmaschine benötigte Zeit minimiert werden. On this basis, the present invention has the object to provide a novel internal combustion engine. This object is achieved by an internal combustion engine according to claim 1. The internal combustion engine according to the invention has at least one compressed air reservoir which can be shut off by a valve, compressed air stored in the or each compressed-air reservoir for starting up the internal combustion engine by opening the or each valve in the direction of the cylinders in order to accelerate the engine run-up. With the internal combustion engine according to the invention, the time required for running up the internal combustion engine can be minimized.
Bei einer Brennkraftmaschine ohne Abgasturboaufladung ist die Druckluft in eine zu den Zylindern der Brennkraftmaschine führende Ladeluftleitung und/oder unmittelbar in die Zylinder der Brennkraftmaschine einbringbar. In an internal combustion engine without exhaust gas turbocharging, the compressed air can be introduced into a charge air line leading to the cylinders of the internal combustion engine and / or directly into the cylinders of the internal combustion engine.
Bei einer Brennkraftmaschine mit Abgasturboaufladung ist die Druckluft zusätzlich oder alternativ in eine zwischen einem Verdichter der Aufladungseinrichtung und einem Ladeluftkühler der Aufladungseinrichtung verlaufende Ladeluftleitung und/oder unmittelbar in einen Verdichter der Aufladungseinrichtung einbringbar. In an internal combustion engine with turbocharging, the compressed air is additionally or alternatively introduced into a charge air line extending between a compressor of the charging device and a charge air cooler of the charging device and / or directly into a compressor of the charging device.
Das Verfahren zum Betreiben der Brennkraftmaschine ist in Anspruch 8 definiert. The method for operating the internal combustion engine is defined in claim 8.
Vorzugsweise wird gleichzeitig zum Öffnen des oder jedes Ventils des oder jedes Druckluftbehälters eine Kraftstoff zufuhr zur Brennkraftmaschine erhöht wird, um das Hochlaufen der Brennkraftmaschine zu beschleunigen. Preferably, at the same time for opening the or each valve of the or each compressed air tank, a fuel supply to the engine is increased to accelerate the run-up of the internal combustion engine.
Bevorzugte Weiterbildungen der Erfindung ergeben sich aus den Unteransprü- chen und der nachfolgenden Beschreibung. Ausführungsbeispiele der Erfindung werden, ohne hierauf beschränkt zu sein, an Hand der Zeichnung näher erläutert. Dabei zeigt: Preferred developments of the invention emerge from the subclaims and the following description. Embodiments of the invention will be described, without being limited thereto, with reference to the drawings. Showing:
Fig. 1 : ein Schema einer ersten erfindungsgemäßen Brennkraftmaschine; Fig. 2: ein Schema einer zweiten erfindungsgemäßen Brennkraftmaschine; Fig. 3: ein Schema einer dritten erfindungsgemäßen Brennkraftmaschine; Fig. 4: ein Schema einer vierten erfindungsgemäßen Brennkraftmaschine; Fig. 5: ein Schema einer fünften erfindungsgemäßen Brennkraftmaschine; und Fig. 6: ein Schema einer sechsten erfindungsgemäßen Brennkraftmaschine. 1 shows a diagram of a first internal combustion engine according to the invention; 2 shows a diagram of a second internal combustion engine according to the invention; 3 shows a diagram of a third internal combustion engine according to the invention; 4 shows a diagram of a fourth internal combustion engine according to the invention; 5 shows a schematic of a fifth internal combustion engine according to the invention; and 6 shows a diagram of a sixth internal combustion engine according to the invention.
Die hier vorliegende Erfindung betrifft eine Brennkraftmaschine sowie ein Verfahren zum Betreiben einer Brennkraftmaschine. The present invention relates to an internal combustion engine and a method for operating an internal combustion engine.
Fig. 1 zeigt ein erstes Ausführungsbeispiel einer erfindungsgemäßen Brennkraftmaschine 10, die mehrere Zylinder 1 1 und eine Aufladungseinrichtung 12 umfasst. Die Aufladungseinrichtung 12 verfügt über eine Turbine 13, in welcher Abgas, welche die Zylinder 1 1 der Brennkraftmaschine 10 verlässt, entspannt wird. Bei der Entspannung des Abgases in der Turbine 13 gewonnene Energie wird in einem Verdichter 14 der Aufladungseinrichtung 12 genutzt, um den Zylindern 1 1 zuzuführende Ladeluft im Verdichter 14 zu verdichten. Zwischen den Verdichter 14 der Aufladungseinrichtung 12 und die Zylinder 1 1 der Brennkraftmaschine 10 ist dabei ein Ladeluftkühler 15 der Aufladungseinrichtung 12 geschaltet, um die ver- dichtete Ladeluft vor der Einleitung derselben in die Zylindern 1 1 der Brennkraftmaschine 10 zu kühlen. 1 shows a first exemplary embodiment of an internal combustion engine 10 according to the invention, which comprises a plurality of cylinders 11 and a charging device 12. The charging device 12 has a turbine 13, in which exhaust gas, which leaves the cylinder 1 1 of the internal combustion engine 10, is relaxed. In the relaxation of the exhaust gas in the turbine 13 recovered energy is used in a compressor 14 of the supercharger 12 to compress the cylinders 1 1 to be supplied charge air in the compressor 14. Between the compressor 14 of the charging device 12 and the cylinder 1 1 of the internal combustion engine 10 while a charge air cooler 15 of the charging device 12 is connected to cool the compressed charge air before the introduction of the same into the cylinders 1 1 of the internal combustion engine 10.
Die Brennkraftmaschine 10 der Fig.1 verfügt über einen Druckbehälter 16, dem ein Ventil 17 zugeordnet ist, wobei dann, wenn das Ventil 17 geschlossen ist, in dem Druckbehälter 16 bereitgehaltene Druckluft nicht aus dem Druckbehälter 16 entweichen kann. Dann hingegen wenn das Ventil 17 geöffnet ist, kann die in dem Druckbehälter 16 gespeicherte Druckluft aus demselben entweichen. The internal combustion engine 10 of Figure 1 has a pressure vessel 16, which is associated with a valve 17, wherein when the valve 17 is closed, in the pressure vessel 16 held compressed air can not escape from the pressure vessel 16. In contrast, when the valve 17 is opened, the compressed air stored in the pressure vessel 16 can escape from the same.
Im Sinne der hier vorliegenden Erfindung ist zum Hochlaufen der Brennkraftma- schine 10 die in dem Druckbehälter 16 gespeicherte Druckluft durch Öffnen des Ventils 17 in Richtung auf die Zylinder 1 1 der Brennkraftmaschine 10 leitbar, um das Hochlaufen der Brennkraftmaschine 10 zu beschleunigen. Dabei ist im Ausführungsbeispiel der Fig. 1 vorgesehen, die Druckluft unmittelbar in den Verdichter 14 der Aufladungseinrichtung 12 einzubringen. Gleichzeitig zum Öffnen des Ventils 17 des Druckluftbehälters 16 wird eine Kraftstoffzufuhr zur Brennkraftmaschine 10 erhöht, um das Hochlaufen der Brennkraftmaschine zu beschleunigen. For the purposes of the present invention, the compressed air stored in the pressure vessel 16 can be conducted to open the valve 17 in the direction of the cylinders 11 of the internal combustion engine 10 to accelerate the run-up of the internal combustion engine 10. It is provided in the embodiment of FIG. 1, to introduce the compressed air directly into the compressor 14 of the charging device 12. Simultaneously with the opening of the valve 17 of the compressed air tank 16, a fuel supply to the internal combustion engine 10 is increased in order to accelerate the run-up of the internal combustion engine.
Das Öffnen des Ventils 17 des Druckluftbehälters 16 und damit das Leiten der Druckluft in Richtung auf die Zylinder 1 1 der Brennkraftmaschine 10 sowie das Erhöhen der Kraftstoffzufuhr zur Brennkraftmaschine 10 erfolgt vorzugsweise unmittelbar mit oder unmittelbar nach Ansteuerung einer Anlasseinrichtung der Brennkraftmaschine 10. The opening of the valve 17 of the compressed air tank 16 and thus the conduction of the compressed air in the direction of the cylinder 1 1 of the engine 10 and increasing the fuel supply to the engine 10 is preferably carried out directly with or immediately after activation of a starting device of the internal combustion engine 10th
Fig. 2 zeigt eine alternative Ausgestaltung einer erfindungsgemäßen Brennkraftmaschine 10, bei welcher zur Beschleunigung des Hochlaufens der Brennkraftmaschine 10 die in dem Druckbehälter 16 gespeicherte Druckluft durch Öffnen des Ventils 17 in eine Ladeluftleitung 18 einbringbar ist, die sich zwischen dem Ver- dichter 14 und dem Ladeluftkühler 15 der Aufladungseinrichtung 12 erstreckt. Gleichzeitig zum Öffnen des Ventils 17 des Druckluftbehälters 16 wird eine Kraftstoffzufuhr zur Brennkraftmaschine 10 erhöht, um das Hochlaufen der Brennkraftmaschine 10 zu beschleunigen. Fig. 2 shows an alternative embodiment of an internal combustion engine 10 according to the invention, in which for accelerating the run-up of the internal combustion engine 10, the stored compressed air in the pressure vessel 16 by opening the valve 17 in a charge air line 18 can be introduced, extending between the compressor 14 and the Charge air cooler 15 of the charging device 12 extends. Simultaneously with the opening of the valve 17 of the compressed air tank 16, a fuel supply to the internal combustion engine 10 is increased in order to accelerate the run-up of the internal combustion engine 10.
Fig. 3 zeigt eine weitere Variante einer erfindungsgemäßen Brennkraftmaschine 10, bei welcher die im Druckbehälter 16 gespeicherte Druckluft bei geöffnetem Ventil 17 zur Beschleunigung des Hochlaufens der Brennkraftmaschine 10 einerseits in eine Ladeluftleitung 19 einbringbar ist, die sich zwischen dem Ladeluftkühler 15 und den Zylindern 1 1 der Brennkraftmaschine erstreckt, sowie andererseits mittelbar in die Zylinder 1 1 der Brennkraftmaschine 10 eingebracht werden kann. Alternativ ist es auch möglich, die Druckluft entweder ausschließlich mittelbar in die Zylinder 1 1 oder in die Ladeluftleitung 19 einzubringen. Gleichzeitig zum Öffnen des Ventils 17 des Druckluftbehälters 16 wird eine Kraftstoffzufuhr zur Brennkraftmaschine 10 erhöht, um das Hochlaufen der Brennkraftmaschine 10 zu be- schleunigen. Fig. 4 zeigt eine Variante der Erfindung, bei welcher die im Druckbehälter 16 gespeicherte Druckluft bei geöffnetem Ventil 17 einerseits unmittelbar in den Verdichter 14 der Aufladungseinrichtung 12 und andererseits in die sich zwischen dem Ladeluftkühler 15 und den Zylindern 1 1 erstreckende Ladeluftleitung 19 ein- gebracht werden kann, um das Hochlaufen der Brennkraftmaschine zu beschleunigen. Alternativ ist es auch möglich, die Druckluft entweder ausschließlich mittelbar in den Verdichter 14 oder in die Ladeluftleitung 19 einzubringen. Gleichzeitig zum Öffnen des Ventils 17 des Druckluftbehälters 16 wird eine Kraftstoffzufuhr zur Brennkraftmaschine 10 erhöht, um das Hochlaufen der Brennkraftmaschine 10 zu beschleunigen. Fig. 3 shows a further variant of an internal combustion engine 10 according to the invention, in which the compressed air stored in the pressure vessel 16 with open valve 17 to accelerate the run-up of the internal combustion engine 10 on the one hand in a charge air line 19 can be introduced, extending between the intercooler 15 and the cylinders 1 1 the internal combustion engine extends, and on the other hand indirectly on the cylinder 1 1 of the internal combustion engine 10 can be introduced. Alternatively, it is also possible to introduce the compressed air either exclusively indirectly in the cylinder 1 1 or in the charge air line 19. Simultaneously with the opening of the valve 17 of the compressed air tank 16, a fuel supply to the internal combustion engine 10 is increased in order to accelerate the run-up of the internal combustion engine 10. 4 shows a variant of the invention in which the compressed air stored in the pressure vessel 16 is introduced with the valve 17 open on the one hand directly into the compressor 14 of the charging device 12 and on the other hand into the charge air line 19 extending between the charge air cooler 15 and the cylinders 11 can be to accelerate the run-up of the internal combustion engine. Alternatively, it is also possible to introduce the compressed air either exclusively indirectly in the compressor 14 or in the charge air line 19. Simultaneously with the opening of the valve 17 of the compressed air tank 16, a fuel supply to the internal combustion engine 10 is increased in order to accelerate the run-up of the internal combustion engine 10.
Fig. 5 zeigt ein Variante, in welcher die im Druckbehälter 16 gespeicherte Druckluft bei geöffnetem Ventil 17 über vier Wege in Richtung auf die Zylinder 1 1 geleitet werden kann, nämlich unmittelbar in den Verdichter 14 der Aufladungseinrich- tung 12, in die Ladeluftleitungen 18 und 19 sowie unmittelbar in die Zylinder 1 1 der Brennkraftmaschine 10. Es sei an dieser Stelle darauf hingewiesen, dass beliebige Kombinationen dieser Einspeisestellen für die Druckluft genutzt werden können. So ist es möglich, die im Druckbehälter 16 gespeicherte Druckluft an einer, an beliebigen zwei, an beliebigen drei oder an allen vier in Fig. 5 gezeigten FIG. 5 shows a variant in which the compressed air stored in the pressure vessel 16 can be conducted in four directions in the direction of the cylinders 11 with the valve 17 open, namely directly into the compressor 14 of the charging device 12, into the charge air lines 18 and 19 and directly into the cylinder 1 1 of the internal combustion engine 10. It should be noted at this point that any combination of these feed points for the compressed air can be used. Thus, it is possible to store the compressed air stored in the pressure vessel 16 at one, at any two, at any three or at all four in FIG
Einspeisestellen in die Ladeluft einzuleiten bzw. einzubringen, um dann die Druckluft zur Beschleunigung des Hochlaufens der Brennkraftmaschine 10 in Richtung auf die Zylinder 1 1 der Brennkraftmaschine 10 zu leiten. Gleichzeitig zum Öffnen des Ventils 17 des Druckluftbehälters 16 wird eine Kraftstoff zufuhr zur Brennkraftmaschine 10 erhöht. To introduce or introduce feed points in the charge air, then to direct the compressed air to accelerate the run-up of the internal combustion engine 10 in the direction of the cylinder 1 1 of the internal combustion engine 10. Simultaneously with the opening of the valve 17 of the compressed air tank 16, a fuel supply to the internal combustion engine 10 is increased.
Bei den Brennkraftmaschinen der Fig. 1 bis 5 handelt es sich jeweils um aufgeladene Brennkraftmaschinen, deren Aufladungseinrichtung 12 einen einzigen Abgasturbolader mit einer Turbine 13 und einem Verdichter 14 umfasst. Im Unterschied hierzu ist es auch möglich, dass die Aufladungseinrichtung 12 mehrstufig ausgebildet ist, also mehrere Abgasturbolader und damit mehrere Turbinen sowie mehrere Verdichter umfasst. Ebenso ist die Erfindung gemäß Fig. 6 an einer nicht aufgeladenen Brennkraftmaschine 10 einsetzbar, wobei bei einer solchen nicht aufgeladenen Brennkraftmaschine 10 zur Beschleunigung des Hochlaufens derselben die im Druckbehälter 16 bereitgehaltene Druckluft bei geöffnetem Ventil 17 in Richtung auf die Zylinder 1 1 der Brennkraftmaschine 10 geleitet wird, nämlich gemäß Fig. 6 in eine zu den Zylindern 1 1 führende Ladeluftleitung 20 und/oder unmittelbar in die Zylinder 1 1 . The internal combustion engines of FIGS. 1 to 5 are in each case turbocharged internal combustion engines whose charging device 12 comprises a single exhaust gas turbocharger with a turbine 13 and a compressor 14. In contrast to this, it is also possible for the charging device 12 to have a multi-stage design, that is to say a plurality of exhaust gas turbochargers and thus several turbines as well as a plurality of compressors. Likewise, the invention of FIG. 6 can be used on a non-supercharged internal combustion engine 10, wherein in such a non-supercharged internal combustion engine 10 to accelerate the run-up of the same in the pressure vessel 16 held compressed air with the valve open 17 in the direction of the cylinder 1 1 of the internal combustion engine 10 is, in accordance with FIG. 6 in a leading to the cylinders 1 1 charge air line 20 and / or directly into the cylinder 1 first
Im Unterscheid zu den gezeigten Ausführungsbeispielen kann auch mehr als ein Druckbehälter 16 vorhanden sein. So ist es möglich, jeder Einspeisestelle für die Druckluft einen separaten Druckbehälter 16 mit einem separaten Ventil 17 zuzuordnen. Es ist auch möglich, mehreren Druckbehälters 16 ein gemeinsames Ventil 17 zuzuordnen. In contrast to the embodiments shown, more than one pressure vessel 16 may be present. It is thus possible to assign a separate pressure vessel 16 with a separate valve 17 to each feed point for the compressed air. It is also possible to assign a common valve 17 to a plurality of pressure vessels 16.
Zur Beschleunigung eines Hochlaufens einer Brennkraftmaschine 10 mit mehre- ren Zylindern 1 1 wird demnach Druckluft, die in mindestens einem Druckluftbehälter 16 gespeichert ist, in Richtung auf die Zylinder 1 1 der Brennkraftmaschine 10 geleitet. Gleichzeitig zum Öffnen des Ventils 17 des Druckluftbehälters 16 wird vorzugsweise eine Kraftstoffzufuhr zu den Zylindern 1 1 der Brennkraftmaschine 10 erhöht. To accelerate a run-up of an internal combustion engine 10 with several cylinders 1 1, compressed air stored in at least one compressed-air reservoir 16 is thus directed in the direction of the cylinders 11 of the internal combustion engine 10. Simultaneously with the opening of the valve 17 of the compressed air tank 16, a fuel supply to the cylinders 1 1 of the internal combustion engine 10 is preferably increased.
Das Druckniveau der Druckluft, die zum Beschleunigen des Hochlaufens der Brennkraftmaschine 10 in Richtung auf die Zylinder 1 1 derselben geleitet wird, liegt insbesondere zwischen 5 bar und 30 bar. The pressure level of the compressed air, which is directed to accelerate the run-up of the internal combustion engine 10 in the direction of the cylinder 1 1 thereof, in particular between 5 bar and 30 bar.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
Brennkraftmaschine Internal combustion engine
Zylinder  cylinder
Aufladungseinrichtung  charging device
Turbine  turbine
Verdichter  compressor
Ladeluftkühler  Intercooler
Druckluftbehälter  Air receiver
Ventil  Valve
Ladeluftleitung  Turbo pipe
Ladeluftleitung  Turbo pipe
Ladeluftleitung  Turbo pipe

Claims

Ansprüche Expectations
1 . Brennkraftmaschine, mit mehreren Zylindern (1 1 ), gekennzeichnet durch mindestens einen von einem Ventil (17) absperrbaren Druckluftbehälter (16), wobei zum Hochlaufen der Brennkraftmaschine in dem oder jedem Druckluftbehälter (16) gespeicherte Druckluft durch Öffnen des oder jedes Ventils (17) in Richtung auf die Zylinder (1 1 ) der Brennkraftmaschine leitbar ist, um das Hochlaufen der Brennkraftmaschine zu beschleunigen. 1 . Internal combustion engine, with several cylinders (1 1), characterized by at least one compressed air container (16) which can be shut off by a valve (17), compressed air stored in the or each compressed air container (16) being used to start up the internal combustion engine by opening the or each valve (17). can be conducted in the direction of the cylinders (1 1) of the internal combustion engine in order to accelerate the start-up of the internal combustion engine.
2. Brennkraftmaschine nach Anspruch 1 , dadurch gekennzeichnet, dass dieselbe eine mindestens einstufige Aufladungseinrichtung (12) aufweist, wobei die Aufladungseinrichtung (12) mindestens eine Turbine (13) zum Entspannen von die Zylinder (1 1 ) verlassendem Abgas und mindestens einen Verdichter (14) zum Verdichten von den Zylindern (1 1 ) zuzuführender Ladeluft aufweist. 2. Internal combustion engine according to claim 1, characterized in that it has an at least one-stage charging device (12), the charging device (12) having at least one turbine (13) for expanding exhaust gas leaving the cylinders (1 1) and at least one compressor (14 ) for compressing charge air to be supplied to the cylinders (1 1).
3. Brennkraftmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Druckluft unmittelbar in die Zylinder (1 1 ) einbringbar ist. 3. Internal combustion engine according to claim 1 or 2, characterized in that the compressed air can be introduced directly into the cylinders (1 1).
4. Brennkraftmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Druckluft in eine zu den Zylindern (1 1 ) führende Ladeluftleitung (19, 20) einbringbar ist. 4. Internal combustion engine according to one of claims 1 to 3, characterized in that the compressed air can be introduced into a charge air line (19, 20) leading to the cylinders (1 1).
5. Brennkraftmaschine nach einem der Ansprüche 2 bis 4, dadurch gekenn- zeichnet, dass die Druckluft unmittelbar in einen Verdichter (14) der Aufladungseinrichtung (12) einbringbar ist. 5. Internal combustion engine according to one of claims 2 to 4, characterized in that the compressed air can be introduced directly into a compressor (14) of the charging device (12).
6. Brennkraftmaschine nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass die Druckluft in eine zwischen einem Verdichter (14) der Aufladungseinrichtung (12) und einem Ladeluftkühler (15) der Aufladungseinrichtung (12) verlaufende Ladeluftleitung (18) einbringbar ist. 6. Internal combustion engine according to one of claims 2 to 5, characterized in that the compressed air can be introduced into a charge air line (18) running between a compressor (14) of the charging device (12) and a charge air cooler (15) of the charging device (12).
7. Brennkraftmaschine nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass dieselbe eine Schiffdieselbrennkraftmaschine ist. 7. Internal combustion engine according to one of claims 1 to 6, characterized in that it is a marine diesel internal combustion engine.
Verfahren zum Betreiben einer Brennkraftmaschine (10) mit mehreren Zylindern (12) nach einem der Ansprüche 1 bis 7, wobei zum Hochlaufen der Brennkraftmaschine in dem oder jedem Druckluftbehälter (16) gespeicherte Druckluft in Richtung auf die Zylinder (12) der Brennkraftmaschine (10) geleitet wird, um das Hochlaufen der Brennkraftmaschine (10) zu beschleunigen. Method for operating an internal combustion engine (10) with several cylinders (12) according to one of claims 1 to 7, wherein in order to start up the internal combustion engine, compressed air stored in the or each compressed air tank (16) is directed towards the cylinders (12) of the internal combustion engine (10). is directed to accelerate the startup of the internal combustion engine (10).
9. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass weiterhin eine Kraftstoff zufuhr zur Brennkraftmaschine (10) erhöht wird, um das Hochlaufen der Brennkraftmaschine (10) zu beschleunigen. 9. The method according to claim 8, characterized in that a fuel supply to the internal combustion engine (10) is also increased in order to accelerate the start-up of the internal combustion engine (10).
PCT/EP2014/061552 2013-06-05 2014-06-04 Internal combustion engine and method for operating same WO2014195345A1 (en)

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JP2016517284A JP6400686B2 (en) 2013-06-05 2014-06-04 Internal combustion engine and driving method of internal combustion engine
CN201480032138.8A CN105247188A (en) 2013-06-05 2014-06-04 Internal combustion engine and method for operating same
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