EP3645853A1 - Verwendung einer diesel-einspritzvorrichtung zum einspritzen von oxymethylenether (ome) - Google Patents
Verwendung einer diesel-einspritzvorrichtung zum einspritzen von oxymethylenether (ome)Info
- Publication number
- EP3645853A1 EP3645853A1 EP18722965.3A EP18722965A EP3645853A1 EP 3645853 A1 EP3645853 A1 EP 3645853A1 EP 18722965 A EP18722965 A EP 18722965A EP 3645853 A1 EP3645853 A1 EP 3645853A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- pressure
- diesel
- internal combustion
- combustion engine
- 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- Withdrawn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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/02—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only
- C10L1/026—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only for compression ignition
-
- 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
- F02B69/00—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types
- F02B69/02—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types for different fuel types, other than engines indifferent to fuel consumed, e.g. convertible from light to heavy fuel
-
- 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
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3827—Common rail control systems for diesel engines
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/95—Fuel injection apparatus operating on particular fuels, e.g. biodiesel, ethanol, mixed fuels
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
Definitions
- the invention relates to the use of a Dieselinjekti ⁇ onsvorraum for injecting Oxymethylenether (OME) in a combustion chamber of an internal combustion engine.
- OME Oxymethylenether
- OME oxymethylene ether
- the calorific value Hu which is significantly lower for OME compared to diesel.
- the calorific value H 0 corresponds to the amount of heat, which can be generated in the combustion of an equal mass m of fuel.
- the calorific value Hu at OME is about half that of diesel, that is, it would have, if only the calorific value H 0 is considered, for an equal amount of heat or energy to be generated about twice the average mass m of fuel to be burned.
- OME is also different in other physical properties of diesel, for example in the viscosity, it can be assumed that a conventional die ⁇ selinjetechnischsvortechnisch can not be taken simply to inject OME in a diesel internal combustion engine. However, this would be desirable because it is so easy to switch from diesel to OME as fuel.
- the object of the invention is therefore to enable the use of a diesel injection device for injecting oxymethyl ene-ether (OME) into a combustion chamber of an internal combustion engine.
- OME oxymethyl ene-ether
- a diesel injection apparatus which includes a high-pressure fuel accumulator for storing a high-pressure fuel for an injector for injecting the high-pressure fuel into the combustion chamber of the internal combustion engine and a control device for adjusting the high-pressure fuel in having the high-pressure fuel storage depending on a prevailing load point of the internal combustion engine.
- Control device sets when using oxymethylene ether (OME) as fuel high fuel pressure so that it is at all load points of the internal combustion engine at least 25% below a set when using diesel as fuel in the same load points of the internal combustion engine high pressure fuel.
- Diesel injectors for fuel use as fuel are well studied and known.
- diesel as a fuel to avoid emissions, in particular to avoid soot a very high fuel high pressure is set in the high-pressure fuel storage, so as to improve the atomization of the diesel and cause less soot formation in the combustion.
- high fuel pressures of 200 bar to 2700 bar are set in the high-pressure fuel storage.
- the load points of the internal combustion engine thereby relate essentially to the speed and the torque of the internal combustion engine, alternatively, the Mit ⁇ tel horren instead of the torque.
- high fuel pressures are achieved in the high-pressure fuel storage in the use of diesel as fuel in a range between 2000 bar and 3000 bar.
- Dieselinjek ⁇ tion device In order for the Dieselinjek ⁇ tion device must be able to provide an extremely high fuel high pressure, which means a high technical and cost-intensive effort. So far it has been assumed that these high fuel pressures must be adjusted as fuel even with oxymethylene ether (OME). In experiments, however, it has surprisingly been found that in the combustion of OME as fuel in a conventional diesel internal combustion engine no measurable amount of soot is formed.
- OME oxymethylene ether
- the diesel injection device can be adjusted differently and, above all, easier compared to the use of diesel as a fuel. It has been found that the fuel high pressure in the high-pressure fuel accumulator can be reduced by at least 25% over the entire characteristic map, that is to say in all load points of the internal combustion engine.
- the diesel injection device can be calibrated more simply and robustly, resulting in a less susceptible and overall less expensive diesel injection device.
- control means controls the fuel ⁇ high pressure in a maximum load point of the internal combustion engine to a value below 1500 bar a.
- the high fuel pressure when using diesel in the maximum load point of the internal combustion engine in a range between 2000 bar and 3000 bar moves, which brings a very high load on the entire system. Due to the lack of soot emission during the combustion of the OME, the fuel high pressure can be set to a value below 1500 bar even in the maximum load point of the internal combustion engine, whereby the loads on the system can be significantly reduced.
- the boundary condition is that in order to achieve the same performance as in the injection of diesel in the internal combustion engine, a correspondingly increased Fuel mass m should be injected to OME as fuel in the combustion chamber of the internal combustion engine. Therefore, the high fuel pressure in the high-pressure fuel storage can not be arbitrarily reduced. Further, in order to be able to inject a sufficient fuel mass m of OME, the high-pressure fuel in the high-pressure fuel reservoir should preferably be set at least to the maximum load point of the internal combustion engine ⁇ above 700 bar. It is therefore possible to reduce the high fuel pressure in the high-pressure fuel accumulator when using OME instead of diesel by up to 70%.
- the diesel injection device further comprises at least one injector for injecting the high-pressure fuel into the combustion chamber of the internal combustion engine, wherein the high-pressure fuel is supplied to the injector from the high-pressure fuel storage, wherein the control device, the injector for injecting the fuel into the combustion chamber depending on a prev - Visible load point of the internal combustion engine controls, wherein the control device, the injector in all load points of the
- activation should be understood to mean that the control device gives the injector a corresponding signal that it opens, injects a predetermined fuel mass m into the combustion chamber and then closes it again.
- the control device when the control device actuates the injector twice, the control device outputs two signals to the injector, whereupon the injector respectively opens, injects a predetermined fuel mass m of fuel into the combustion chamber, and closes again when the required fuel mass m is injected.
- the control device thus controls the injector for a main injection, in which the largest fuel mass m is injected for the actual combustion in the combustion chamber, and another small injection.
- control device activates the injector for a main injection and a pilot injection upstream of the main injection.
- diesel as fuel
- control device controls the injector so that the post-injection is completely dispensed with.
- the diesel injection device when using a diesel injection device for injecting oxymethylene ether (OME) instead of diesel, the diesel injection device as a whole can be significantly simpler be calibrated.
- the high fuel pressure in the high-pressure fuel accumulator can be reduced by at least 25% compared to diesel, and on the other hand can be dispensed with the plurality of injections by only the main injection and a pilot injection are performed. Accordingly, the diesel injection device can be significantly simplified compared to the use of diesel as a fuel. Nevertheless, with these measures, the soot emission is even lower than when using diesel as a fuel.
- FIG. 1 shows a schematic overview of a diesel injection device with a high-pressure fuel accumulator and a plurality of injectors
- FIG. 2 is a graph illustrating the formation of soot in the combustion of fuel as a function of the high fuel pressure in the high-pressure fuel storage shown in FIG. 1.
- Fig. 1 shows a schematic overview of a diesel injection device 10, applied with the usual diesel as fuel 12 with high-pressure fuel P, Ge ⁇ collects and is then injected into combustion chambers of an internal combustion engine.
- the diesel injection device 10 has a tank 14 in which the fuel 12 is provided, and from where the fuel 12 is supplied via a pre-feed pump 16 to a high-pressure fuel pump 18.
- the fuel ⁇ high-pressure pump 18 then pressurizes the fuel 12 to the fuel high pressure p and pushes the fuel 12 in the direction of a high-pressure fuel storage 20 from where the highly pressurized fuel is stored 12th
- the one with High-pressure fuel 12 is then removed via injectors 22 to the high-pressure fuel accumulator 20 and supplied by injection from the injectors 22 out of the combustion chambers of the internal combustion engine.
- the pre-feed pump 16 transports the fuel 12 consequently out of the tank 14 out through a low pressure region 24 of the diesel injection device 10 to a pressure chamber 26 of the high-pressure fuel pump 18.
- a metering valve 28 is provided which are actively controlled at ⁇ and thus filling the Pressure chamber 26 with fuel 12 from the low pressure region 24 can control.
- a pump piston 30 moves translatorically up and down and thereby periodically changes the volume of the pressure chamber 26 so that therein fuel 12 ver ⁇ seals and thus subjected to high pressure.
- the fuel 12 pressurized in the pressure chamber 26 is discharged into a high-pressure region 34 of the diesel injection device 10, where it is then stored in the high-pressure fuel reservoir 20, the so-called rail, until it is injected via the injectors 22 into combustion chambers of the internal combustion engine.
- the control of the metering valve 28 and the injectors 22 is effected via a control device 36 that outputs depending on a load point of the internal combustion engine signals to the To ⁇ metering valve 28 and the injectors 22 in order to a corresponding fuel mass m for the combustion to
- the control device 36 are for this purpose parameters of the internal combustion engine over which the control device 36 the can determine the corresponding load point of the internal combustion engine. These are, for example, the speed and the torque of the internal combustion engine, but it can be used instead of torque and the medium pressure.
- the control device 36 the force ⁇ high fuel pressure p in the fuel high-pressure accumulator 20 in accordance with a.
- the control device 36 controls, for example, the metering valve 28 to admit a corresponding fuel mass m in the pressure chamber 26 of the high-pressure fuel pump 18, which is then ver ⁇ seals.
- This fuel mass m is provided to the power ⁇ fabric high-pressure accumulator 20 is available.
- a corresponding high-pressure fuel p is established in the high-pressure fuel accumulator 20. The less fuel mass m is supplied to the high-pressure fuel storage 20, the lower the high fuel pressure p, which then prevails in the high-pressure fuel storage 20.
- diesel as fuel 12 tends to burn down to form soot and NO x . Therefore, diesel injectors 10 have so far been optimized so controlled via the control device 36 that as little as possible soot is formed and also produces as little NO x . The problem was that these two unwanted emissions behave in opposite directions. This means that the formation of soot increases with the lowest possible formation of NO x .
- soot during the combustion of diesel Ver ⁇ could be reduced as the fuel 12 in particular.
- FIG. 2 This is illustrated for example in FIG. 2 in a diagram illustrating the formation of soot in FSN in dependence on the fuel pressure P in ⁇ high bar.
- diesel injectors 10 have been optimized to use the highest possible high fuel pressure p to counteract this soot formation.
- OME has a significantly lower calorific value H 0 than diesel, with the calorific value Hui of diesel being about twice as high as the calorific value H 0 2 of OME.
- the calorific value H 0 corresponds to the amount of heat that can be generated at a same fuel mass m. Therefore theoretically for equal performance would have to
- diesel as fuel 12 to reduce soot formation is, in addition to a main injection of the injectors 22, that is the actual injection, which introduces the desired fuel mass m in the combustion chamber of the internal combustion engine, additionally upstream pilot injections and also to carry out post-injection after time.
- the mixture formation between diesel as fuel 12 and the ambient air is influenced so that the least possible soot is produced during the combustion of the diesel.
- the control device therefore controls the injectors 22 in such a way that, in addition to a main injection, a single pilot injection, which is upstream of the main injection, is carried out.
- the control device therefore controls the injectors 22 at most twice in all load points of the internal combustion engine.
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)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017211077.5A DE102017211077A1 (de) | 2017-06-29 | 2017-06-29 | Verwendung einer Dieselinjektionsvorrichtung zum Einspritzen von Oxymethylenether (OME) |
| PCT/EP2018/061431 WO2019001804A1 (de) | 2017-06-29 | 2018-05-03 | Verwendung einer diesel-einspritzvorrichtung zum einspritzen von oxymethylenether (ome) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3645853A1 true EP3645853A1 (de) | 2020-05-06 |
Family
ID=62116868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18722965.3A Withdrawn EP3645853A1 (de) | 2017-06-29 | 2018-05-03 | Verwendung einer diesel-einspritzvorrichtung zum einspritzen von oxymethylenether (ome) |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3645853A1 (de) |
| DE (1) | DE102017211077A1 (de) |
| WO (1) | WO2019001804A1 (de) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0930426B1 (de) * | 1998-01-13 | 2003-12-03 | Siemens Aktiengesellschaft | Verfahren zur Vorgabe des Einspritzdruck-Sollwertes bei Speichereinspritzsystemen |
| US8442744B2 (en) * | 2010-07-20 | 2013-05-14 | Ford Global Technologies, Llc | Compensation for oxygenated fuel use in a diesel engine |
| US9255542B2 (en) * | 2013-02-04 | 2016-02-09 | Ford Global Technologies, Llc | System and method for compensating biodiesel fuel |
| DE102014014595A1 (de) * | 2014-10-07 | 2016-04-07 | Man Truck & Bus Ag | Verfahren und Vorrichtung zum Betreiben eines Fahrzeugs, insbesondere eines Nutzfahrzeugs |
-
2017
- 2017-06-29 DE DE102017211077.5A patent/DE102017211077A1/de not_active Withdrawn
-
2018
- 2018-05-03 WO PCT/EP2018/061431 patent/WO2019001804A1/de not_active Ceased
- 2018-05-03 EP EP18722965.3A patent/EP3645853A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017211077A1 (de) | 2019-01-03 |
| WO2019001804A1 (de) | 2019-01-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE19621297C1 (de) | Einrichtung zur Steuerung/Regelung der Zündöl-Einspritzung eines Gasmotors | |
| DE102007013119A1 (de) | Einspritzverfahren und zugehörige Verbrennungskraftmaschine | |
| DE3511328C2 (de) | ||
| EP1608856A1 (de) | Brennkraftmaschine mit selbstz ndung | |
| DE112013006689T5 (de) | Kraftstoffeinspritzverfahren und Verbrennungsmotor mit früher Voreinspritzung | |
| DE10332546A1 (de) | Mischbetriebsart-Einspritzvorrichtung und Einspritzsystem | |
| WO2011101419A1 (de) | Hochdruck-kraftstoff-einspritzventil für einen verbrennungsmotor | |
| DE112006001271T5 (de) | Direkteinspritzender gasbetriebener Motor und Verfahren zum Steuern des Kraftfahrstoffeinspritzdrucks | |
| EP2772640B1 (de) | Verfahren und Vorrichtung zum Betrieb eines Dieselmotors mit Emulsionskraftstoffen variabler Zusammensetzung | |
| DE102015203614B3 (de) | Mehrstoff-Injektor für eine Brennkraftmaschine, Verfahren zum Betreiben eines Mehrstoff-Injektors, und Brennkraftmaschine | |
| WO2017129375A1 (de) | Emulgiersystem und emulgierverfahren | |
| DE112009000390T5 (de) | Brennkraftmaschine | |
| EP1432901A1 (de) | Verfahren, computerprogramm und steuer- und/oder regelgerät zum betreiben einer brennkraftmaschine, sowie brennkraftmaschine | |
| EP3645853A1 (de) | Verwendung einer diesel-einspritzvorrichtung zum einspritzen von oxymethylenether (ome) | |
| DE102017206021B3 (de) | Brennraumanordnung für eine Brennkraftmaschine, Einspritzverfahren und Verwendung einer Brennraumanordnung zum Einspritzen von OME-Kraftstoff | |
| AT512439B1 (de) | Vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine | |
| DE10101358A1 (de) | Kraftstoffeinspritzeinrichtung | |
| DE102006023693A1 (de) | Verfahren zum Betreiben einer Brennkraftmaschine | |
| EP1286036B1 (de) | Verfahren zur Beeinflussung der Schadstoffemissionswerte und/oder der Geräuschemissionswerte eines Verbrennungsmotors und Kraftstoff-Einspritzanlage | |
| DE10147171B4 (de) | Verfahren zum direkten Einspritzen von Kraftstoff in Form von zwei Einspritzungen mit unterschiedlichen Einspritzwinkeln und eine Steuereinrichtung zum Einspritzen | |
| DE10026273C2 (de) | Verfahren zur Zylindergleichstellung bei einer Verbrennungskraftmaschine | |
| WO2019002519A1 (de) | Verwendung einer dieselinjektionsvorrichtung zum einspritzen von oxymethylenether (ome) | |
| DE10038995A1 (de) | Verfahren und Vorrichtung zur Steuerung der Kraftstoffzumessung in einer Brennkraftmaschine | |
| DE102008016376A1 (de) | Verfahren zum Betreiben einer Antriebsvorrichtung für ein Kraftfahrzeug mit einem Verbrennungsmotor und Antriebsvorrichtung | |
| DE102017206015B4 (de) | Brennraumanordnung für eine Brennkraftmaschine und Verwendung einer Brennraumanordnung zum Einspritzen von OME-Kraftstoff |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20200129 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VITESCO TECHNOLOGIES GMBH |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VITESCO TECHNOLOGIES GMBH |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20220513 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20221124 |