EP3997321A1 - Brennkraftmaschine mit einem methan-dme (erdgas-dimethylether)-kraftstoffversorgungssystem und verfahren zum betrieb der brennkraftmaschine - Google Patents
Brennkraftmaschine mit einem methan-dme (erdgas-dimethylether)-kraftstoffversorgungssystem und verfahren zum betrieb der brennkraftmaschineInfo
- Publication number
- EP3997321A1 EP3997321A1 EP20737413.3A EP20737413A EP3997321A1 EP 3997321 A1 EP3997321 A1 EP 3997321A1 EP 20737413 A EP20737413 A EP 20737413A EP 3997321 A1 EP3997321 A1 EP 3997321A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- internal combustion
- combustion engine
- methane
- dme
- 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- Withdrawn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
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
- F02D19/0642—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
- F02D19/0647—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0665—Tanks, e.g. multiple tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
- F02D19/082—Premixed fuels, i.e. emulsions or blends
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
- F02D19/10—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
-
- 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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
- F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0602—Control of components of the fuel supply system
- F02D19/0613—Switch-over from one fuel to another
- F02D19/0615—Switch-over from one fuel to another being initiated by automatic means, e.g. based on engine or vehicle operating conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0686—Injectors
- F02D19/0692—Arrangement of multiple injectors per combustion chamber
-
- 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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Definitions
- the invention relates to a self-igniting combustion method for an internal combustion engine in which a fuel mixture composed of two fuels is burned.
- the documents DE 31 09 358 A1 and EP 2 609 302 B1 describe fuels for operating an internal combustion engine.
- the document DE 31 09 358 A1 discloses a liquid fuel or propellant for use in an automobile, which thereby
- Publication are dual-fuel engines in which a first fuel, which contains methane, ethane, propane, butane or mixtures thereof, and a second fuel, such as gasoline or
- Diesel fuel to be injected separately into the combustion chamber of a compression ignition engine.
- the following invention is also based on the basic idea of using two fuels, which at first glance appear to be of a different nature, as fuels for an internal combustion engine.
- the object of the invention is thus to create an alternative fuel supply system with previously unusual fuels with which an internal combustion engine can be supplied with fuel with a high degree of efficiency and low emissions on the exhaust gas side, and in particular with low soot formation, as will be explained below.
- Natural gas mainly consists of extremely flammable methane.
- Methane as such or natural gas hereinafter referred to as methane
- LNG liquefied natural gas
- CNG compressed natural gas
- DME in turn, can be passed on as a liquid or gaseous fuel under pressure.
- the idea of the invention is based, inter alia, on the aspect that both methane and DME have a low-soot burning behavior.
- the invention is also based on the knowledge that methane is a very compression-resistant fuel, which according to the invention is therefore preferred for an externally ignited fuel
- Combustion process is suitable.
- DME is a less compression-resistant fuel and therefore more suitable for a
- methane which the person skilled in the art - as explained - would in principle rather use for an externally ignited combustion process, is now used according to the invention in a self-ignited combustion process, this use of methane in a self-ignited combustion process below With the help of DME, as will be further explained below.
- an internal combustion engine is supplied in a first embodiment with a mixture of methane and DME, said fuels in one Storage containers are premixed. Care is taken to ensure that the DME fuel does not separate due to pressure or temperature changes, or in the case of liquid LNG due to the well-known boil-off effect, which would result in unequal mixing ratios. It is also ensured that the amount of DME dissolved in the methane is sufficient to be able to carry out the self-ignited combustion process provided according to the invention.
- the internal combustion engine thus comprises a fuel tank in which a premixed fuel mixture of a first fuel containing dimethyl ether and a second fuel containing methane is stored, the fuel mixture (DME / methane) at least one combustion chamber of the internal combustion engine being stored directly and / or indirectly via at least one intake manifold Internal combustion engine is supplied upstream of the at least one combustion chamber and is burned in a self-igniting manner with the addition of combustion air on the intake pipe side.
- a fuel tank in which a premixed fuel mixture of a first fuel containing dimethyl ether and a second fuel containing methane is stored, the fuel mixture (DME / methane) at least one combustion chamber of the internal combustion engine being stored directly and / or indirectly via at least one intake manifold
- Internal combustion engine is supplied upstream of the at least one combustion chamber and is burned in a self-igniting manner with the addition of combustion air on the intake pipe side.
- a second embodiment which basically consists in that the fuel supply system of the vehicle in a first embodiment variant has at least two or in another second embodiment variant three fuel reservoirs, as will be explained below.
- the internal combustion engine comprises a first fuel tank in which comprises a first fuel containing dimethyl ether and a second fuel tank in which a second fuel containing methane is stored, which are directly and / or separately from at least one combustion chamber of the internal combustion engine indirectly via at least one intake manifold of the internal combustion engine upstream of the at least one combustion chamber to form a fuel mixture which is burned in the combustion chamber with the addition of combustion air on the intake manifold side in a self-igniting manner.
- the internal combustion engine comprises a first fuel tank in which a first fuel containing dimethyl ether and a second fuel tank in which a methane-containing gas (LNG) comprises a second fuel and a third fuel tank in which a likewise Methane containing gas (CNG) as a third fuel, different from the second fuel
- the first fuel differs, is stored, with the first fuel separate from the second or third Fuel (LNG, CNG) at least one combustion chamber of the internal combustion engine directly and / or indirectly via an intake manifold of the internal combustion engine upstream of the at least one
- LNG, CNG Fuel
- Combustion chamber to form a fuel mixture (DME / methane), which is burned in the combustion chamber with the addition of combustion air (L) on the intake manifold.
- DME / methane a fuel mixture
- L combustion air
- Fuel supply system (see Figure 1) has two fuel tanks T1 and T2 and corresponding supply lines to the combustion chamber of the internal combustion engine.
- DME is stored in the first fuel tank T1, while in the other second fuel tank T2 methane as such or natural gas, preferably cryogenic LNG, in the usual fuel tank T2-LNG (liquid, possibly with a usable gas cushion above the liquid phase) or CNG (gaseous ) is stored in a standard T2-CNG fuel tank (pressure tank).
- T2-LNG liquid, possibly with a usable gas cushion above the liquid phase
- CNG gaseous
- a combustion chamber of the internal combustion engine is in different
- Inlet scenarios (which will be explained below) are supplied with a mixture of DME and methane and a suitable, predefinable amount of air.
- the internal combustion engine is operated analogously to a
- the plan is therefore to generate a gaseous mixture of DME, methane (CNG or LNG) and combustion air that is fed to the combustion chamber, in other words, all components are gaseous (LNG is converted accordingly via the use of a heat exchanger evaporated or the gas cushion in the fuel tank T2-LNG is used) and ideally be homogeneously distributed so that the gaseous mixture of DME, methane and combustion air burns homogeneously when the internal combustion engine is operating. That is to say, the internal combustion engine can be designed and configured similarly to an internal combustion engine operated with diesel fuel. In still other words, it is now possible to use a fuel consisting mainly of a gasoline mixed with DME - methane as such or LNG or CNG - without the aid of in a diesel engine.
- FIG. 1 there are basically the following injection scenarios for the fuels, which are illustrated in FIG. Basically, it is provided that through a skilful selection of the injection point and the injection time as well as the quantity variation of the proportions of the fuels that contribute to the formation of the fuel mixture, the burning with regard to the
- Ignition times are optimized. This allows the formation of emissions such as HC (unburned hydrocarbons) and / or soot and / or CO (carbon monoxide) to be optimized.
- HC unburned hydrocarbons
- CO carbon monoxide
- the design of the fuel supply system with two fuel tanks T1, T2 and the provision of two fuels DME and methane (as such or LNG, CNG) enable the internal combustion engine to react more specifically to environmental conditions such as temperature and the requirements of the different load points and their
- the two fuels can be supplied at different times and locations (direct injection D1, D2 and intake manifold injection S1, S2).
- the fuel supply system has the first fuel tank T1, in which DME is stored according to the invention, while methane as such or natural gas, preferably cryogenic LNG in the fuel tank T2-LNG (liquid, if necessary with a usable gas cushion above the liquid phase) or CNG (gaseous) is stored in a conventional fuel tank T2-CNG (pressure tank).
- a compressor 10 preferably ensures the generation of the charge air L, which is fed to an intake pipe arranged between the compressor 10 and the combustion chamber of the internal combustion engine.
- direct injection D1, D2 into the combustion chamber is available for supplying the fuels. That is to say, DME is taken from the first fuel tank T1 and blown directly into the combustion chamber (s) of the internal combustion engine in accordance with the reference symbol D1.
- methane as such or LNG or CNG is taken from the fuel tank T2 and into the combustion chamber (s) of the
- intake manifold injection S1, S2 is available for supplying the fuels into the combustion chamber. That is, DME is taken from the first fuel tank T1 and blown in via the intake manifold according to the reference symbol S1 and fed to the combustion chamber (s) of the internal combustion engine. In addition, methane as such or LNG or CNG is withdrawn from the fuel tank T2 and blown in via the intake manifold and fed to the combustion chamber (s) of the internal combustion engine according to the reference symbol S2.
- Methane as such or LNG or CNG is taken from the fuel tank T2 and blown directly into the combustion chamber (s) of the internal combustion engine according to the reference symbol D2, while DME is taken from the first fuel tank T1 and blown in according to the reference symbol S1 via the intake pipe and into the combustion chamber / is fed to the combustion chambers of the internal combustion engine.
- Methane as such or LNG or CNG is taken from the fuel tank T2 and blown in via the intake manifold according to the reference symbol S2 and fed to the combustion chamber (s) of the internal combustion engine, while DME is from the first Fuel tank T1 is removed and blown directly into the combustion chamber (s) of the internal combustion engine according to the reference symbol D1.
- the first and fourth injection scenarios are regarded as preferred embodiments because DME, as explained above, is intended to cause the enthalpy made available by the compression and the flame generated thereby to ignite the methane.
- the ignition of the methane should not already take place on the intake pipe side, which is why it is preferably provided that DME is removed from the first fuel tank T1 and blown directly into the combustion chamber (s) of the internal combustion engine according to the reference symbol D1.
- Methane as such or LNG or CNG is taken from the fuel tank T2 and also fed directly to the combustion chamber (s) of the internal combustion engine according to the reference symbol D2 (first injection scenario) or blown in via the intake manifold according to the reference symbol S2 and to the combustion chamber (s) of the internal combustion engine ( fourth
- Fuel supply system has, for example, three fuel tanks T1 and T2-LNG and T3-CNG and corresponding supply lines to the combustion chamber 100 of the internal combustion engine.
- cryogenic LNG which is taken from the fuel tank T2-LNG in gaseous form from the gas phase, for example, is that it cools down even further when it is expanded, so that the supply organs (injectors, pressure reducers) freeze when it is supplied etc.) comes.
- the second variant (not shown) provides that the vehicle has, in addition to the fuel tank T2-LNG, a further fuel tank T3-CNG, which provides gaseous CNG at the lowest possible pressure level, which can be used if necessary, whereby the need is seen in the fact that in the start phase or in a cold start phase, in particular in the so-called cryogenic cold run of the vehicle, gaseous CNG from the further fuel tank T3-CNG is used, which reduces the icing problems of the LNG, which after this proposed procedure, in particular no longer supplied in the cold start phase, can be avoided.
- a further fuel tank T3-CNG which provides gaseous CNG at the lowest possible pressure level, which can be used if necessary, whereby the need is seen in the fact that in the start phase or in a cold start phase, in particular in the so-called cryogenic cold run of the vehicle, gaseous CNG from the further fuel tank T3-CNG is used, which reduces the icing problems of the LNG, which after this proposed procedure, in particular
- Mixtures can be used.
- methane is used as fuel in spark ignition processes in known concepts.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019118364.2A DE102019118364A1 (de) | 2019-07-08 | 2019-07-08 | Brennkraftmaschine mit einem Methan-DME (Erdgas-Dimethylether)-Kraftstoffversorgungssystem und Verfahren zum Betrieb der Brennkraftmaschine |
| PCT/EP2020/068758 WO2021004911A1 (de) | 2019-07-08 | 2020-07-03 | Brennkraftmaschine mit einem methan-dme (erdgas-dimethylether)-kraftstoffversorgungssystem und verfahren zum betrieb der brennkraftmaschine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3997321A1 true EP3997321A1 (de) | 2022-05-18 |
Family
ID=71527784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20737413.3A Withdrawn EP3997321A1 (de) | 2019-07-08 | 2020-07-03 | Brennkraftmaschine mit einem methan-dme (erdgas-dimethylether)-kraftstoffversorgungssystem und verfahren zum betrieb der brennkraftmaschine |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11788481B2 (de) |
| EP (1) | EP3997321A1 (de) |
| CN (1) | CN113906207A (de) |
| BR (1) | BR112021019441A2 (de) |
| DE (1) | DE102019118364A1 (de) |
| WO (1) | WO2021004911A1 (de) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4372753A (en) * | 1980-04-23 | 1983-02-08 | Source Technology, Inc. | Liquid fuel for use in internal combustion engines |
| CA2398146C (en) * | 2000-02-11 | 2009-09-22 | Westport Research Inc. | Method and apparatus for gaseous fuel introduction and controlling combustion in an internal combustion engine |
| GB2413824A (en) * | 2004-05-07 | 2005-11-09 | Statoil Asa | Operating diesel-cycle i.c. engines on gaseous fuels with ignition-improvers |
| JP4297181B2 (ja) * | 2007-07-17 | 2009-07-15 | 株式会社デンソー | インジェクタ |
| US8720420B2 (en) * | 2010-08-27 | 2014-05-13 | Renault Trucks | Engine arrangement comprising a heat recovery circuit |
| CN102080598B (zh) * | 2010-12-20 | 2012-06-27 | 北京工业大学 | 一种采用二甲醚和高辛烷值燃料内燃机的控制方法 |
| CA2743043C (en) * | 2011-06-14 | 2012-09-18 | Westport Power Inc. | Dual fuel injection valve |
| EP2729685A4 (de) * | 2011-07-04 | 2016-09-07 | Orbital Australia Pty Ltd | System für multikraftstofffreisetzung |
| US8925518B1 (en) * | 2014-03-17 | 2015-01-06 | Woodward, Inc. | Use of prechambers with dual fuel source engines |
| DE102015212244B4 (de) * | 2015-06-30 | 2020-04-23 | Mtu Friedrichshafen Gmbh | Verfahren zum Betreiben einer Brennkraftmaschine, Steuergerät für eine Brennkraftmaschine und Brennkraftmaschine |
| DE102016211792A1 (de) | 2016-06-30 | 2018-01-04 | Continental Automotive Gmbh | Gasbrennkraftmaschine mit Hilfsstartsystem und Verfahren zum Betreiben einer Gasbrennkraftmaschine |
-
2019
- 2019-07-08 DE DE102019118364.2A patent/DE102019118364A1/de not_active Withdrawn
-
2020
- 2020-07-03 CN CN202080040483.1A patent/CN113906207A/zh active Pending
- 2020-07-03 BR BR112021019441A patent/BR112021019441A2/pt not_active Application Discontinuation
- 2020-07-03 WO PCT/EP2020/068758 patent/WO2021004911A1/de not_active Ceased
- 2020-07-03 EP EP20737413.3A patent/EP3997321A1/de not_active Withdrawn
- 2020-07-03 US US17/625,726 patent/US11788481B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113906207A (zh) | 2022-01-07 |
| BR112021019441A2 (pt) | 2022-01-18 |
| US11788481B2 (en) | 2023-10-17 |
| WO2021004911A1 (de) | 2021-01-14 |
| DE102019118364A1 (de) | 2021-01-14 |
| US20220290623A1 (en) | 2022-09-15 |
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