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EP2014908A1 - Moteur à combustion interne fonctionnant au diesel ou au carburant biogène au choix - Google Patents

Moteur à combustion interne fonctionnant au diesel ou au carburant biogène au choix Download PDF

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Publication number
EP2014908A1
EP2014908A1 EP08010662A EP08010662A EP2014908A1 EP 2014908 A1 EP2014908 A1 EP 2014908A1 EP 08010662 A EP08010662 A EP 08010662A EP 08010662 A EP08010662 A EP 08010662A EP 2014908 A1 EP2014908 A1 EP 2014908A1
Authority
EP
European Patent Office
Prior art keywords
fuel
combustion engine
internal combustion
pressure pump
tank
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.)
Granted
Application number
EP08010662A
Other languages
German (de)
English (en)
Other versions
EP2014908B1 (fr
Inventor
Peter Wagner
Mark Zimmermann
Thomas Hoen
Michael Neuhaus
Christian Fink
Andreas Friesen
Sebastian Terlinde
Jörg Thiemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutz AG
Original Assignee
Deutz AG
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 Deutz AG filed Critical Deutz AG
Priority to PL08010662T priority Critical patent/PL2014908T3/pl
Publication of EP2014908A1 publication Critical patent/EP2014908A1/fr
Application granted granted Critical
Publication of EP2014908B1 publication Critical patent/EP2014908B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F02M37/0064—Layout or arrangement of systems for feeding fuel for engines being fed with multiple fuels or fuels having special properties, e.g. bio-fuels; varying the fuel composition
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0076—Details of the fuel feeding system related to the fuel tank
    • F02M37/0088—Multiple separate fuel tanks or tanks being at least partially partitioned
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/06—Feeding by means of driven pumps mechanically driven
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven

Definitions

  • the invention relates to an internal combustion engine, in particular a self-igniting internal combustion engine, which is operated alternately with a low-viscosity fuel, in particular diesel, and a viscous fuel, in particular rapeseed oil, wherein the thin liquid fuel receiving additional tank via a filter device and a conveyor and the viscous fuel receiving Main tank are connected via a filter assembly and a conveyor assembly via supply lines to a common high-pressure pump means and a low-pressure outlet of the high-pressure pump means is connected via a return line system to the main tank and the auxiliary tank, and a method for operating such an internal combustion engine.
  • a self-igniting internal combustion engine which is operated alternately with a low-viscosity fuel, in particular diesel, and a viscous fuel, in particular rapeseed oil
  • the thin liquid fuel receiving additional tank via a filter device and a conveyor and the viscous fuel receiving Main tank are connected via a filter assembly and a conveyor assembly via supply lines to a common high-pressure pump means
  • Such an internal combustion engine is from the DE 38 00 585 A1 known.
  • This internal combustion engine relates to a device for alternative operation of a diesel engine with low-viscosity fuel, in particular diesel oil, and viscous fuel, in particular rapeseed oil, both fuels are supplied via a series injection pump to the injection valves of the internal combustion engine.
  • a device is provided which is intended to ensure, on the one hand, an optional supply of one of the two fuels to the series injection pump and with which a rinsing of the low-pressure system of the fuel system is to take place. This whole device is essentially pressure controlled.
  • the invention has for its object to provide an internal combustion engine and a method for operating such an internal combustion engine, with the or a reliable, changing operation with different fuels is possible, in particular, the control of the switching operations should be optimized.
  • a first switching valve is arranged, which selectively connects the low-viscosity fuel leading feed or the viscous fuel leading supply with the entry into the high-pressure pump device.
  • the low-viscosity fuel in particular diesel fuel
  • the viscous fuel is a biogenic fuel.
  • a biogenic fuel is in particular rapeseed fuel, but in principle it can also be a fuel obtained from another vegetable oil.
  • a first switching valve is arranged, which selectively connects the viscous fuel leading supply with the entry into the high-pressure pump device or with an opening into the main tank short-circuit line and the low-viscosity fuel supply leading via a check valve in the entrance opens into the high-pressure pump device.
  • the first switching valve is a 3/2-way valve.
  • Such a valve is particularly suitable for the required switching.
  • the high-pressure pump device has a fuel metering device and at least one downstream high-pressure pump. With the high-pressure pump device designed in this way, a pressure accumulator designed as a rail is filled with fuel, valve-controlled injection valves being connected to the rail. By means of the injection valves, the individual combustion chambers of the internal combustion engine, controlled by an electronic control device, which otherwise takes over the entire engine control, supplied fuel.
  • the internal combustion engine designed according to the invention is preferred for operating agricultural equipment or vehicles, such as tractors, for example. used, especially since in such an application, the use of rapeseed fuel ecological and financial benefits.
  • the fuel metering device opening into a scrublauf fürsarm low-pressure outlet, wherein in the divided into two arms return line arms, a second changeover valve and a third changeover valve are arranged, the low pressure output via an additional tank return line to the additional tank or a main tank return line to the main tank boarded.
  • the fuel metering device is always supplied with a larger amount of fuel than is maximally promoted by the one or more high-pressure pump (s) at maximum load of the internal combustion engine in the rail and is therefore injected from the injectors into the combustion chambers.
  • the inventive design it is thus possible to ensure that especially in the diesel fuel-absorbing lance no rapeseed fuel is introduced by, for example, after a switching from rapeseed fuel to diesel fuel, the second switching valve and the third changeover valve are kept in a switching position as long as the the Kraftstoffzumess recognized diverted fuel into the main tank, until applied to the second switching valve and the third switching valve diesel fuel. The second switching valve and the third switching valve are consequently switched over in time to the first switching valve.
  • this time delay is such that it is shorter in a switching process from diesel fuel to rapeseed fuel than vice versa. It can be tolerated, if a small amount of diesel fuel in the rapeseed fuel receiving main tank is discharged, while for the reasons listed above, the reverse process is undesirable.
  • the second changeover valve and the third changeover valve are two jointly operable 2/2-way valves. These two valves can therefore be operated by a common relay. It is also possible to combine the two jointly operable 2/2-way valves to a 3/2 way valve.
  • the conveyor assembly is a mechanically driven by the internal combustion engine feed pump.
  • the internal combustion engine feed pump usually the normal on an internal combustion engine, which is equipped with a conventional, fuel-only injection system, built-in delivery pump including the filters still installed.
  • the permanently operated mechanical feed pump does not promote against a closed valve, the rapeseed fuel promoting supply to the fuel metering device interconnected via a shut-off device with associated line connections to the main tank.
  • the shut-off device which is otherwise designed as a fourth switching valve, actuated accordingly.
  • the fourth switching valve is not needed, since then the first switching valve assumes this switching function.
  • a heating device is switched on in the viscous fuel leading supply, which is connected to the engine cooling medium.
  • the heating device is designed in such a way that the temperature of the viscous fuel can be regulated as constant as possible to a predeterminable temperature.
  • the method steps contain advantageous details for operating a correspondingly designed internal combustion engine.
  • the internal combustion engine which is preferably used in agricultural Appliances or vehicles is used, operated in diesel mode exclusively with diesel fuel.
  • the diesel fuel is filled in an auxiliary tank 1, which is connected via a diesel pre-filter 2, an electric feed pump 3, a diesel main filter 4 with a first switching valve 5, which is designed as a 3/2-way valve, via line sections 6a, 6b, 6c, 6d.
  • the line section 6d is interconnected by a corresponding position of the first changeover valve 5 with a supply line 7 to a fuel metering device 8, which controls the fuel supply ( Fig. 6 ) in particular two designed as plug pumps high pressure pumps 9 controls, of which the fuel is conveyed in a common rail 10.
  • injection valves 11 are connected, which, controlled by an electronic control device 12 (of which all other components of the internal combustion engine, including the directional control valves and the feed pump 3 can be controlled), inject fuel in each case a combustion chamber of the internal combustion engine.
  • high-pressure pumps 9 are actuated in a design of the internal combustion engine as a 6-cylinder internal combustion engine each of three correspondingly distributed on the circumference of the camshaft cam 13 per camshaft rotation.
  • two cams per high-pressure pump 9 are distributed on the circumference of the camshaft 13.
  • the camshaft 13 in addition to the cam for actuating the high-pressure pumps 9 more cams for the actuation of gas exchange valves.
  • the fuel metering device 8 has the FIG. 1 a low-pressure side fuel return in the form of a return line 14.
  • the return line 14 branches into two return line arms 14a, 14b, wherein the return line arm 14a via a third change-over valve 15 to the auxiliary tank 1 via an additional tank return line 16 is fluidly connected. Consequently, the fuel metering device is used 8 recycled diesel fuel fed back into the auxiliary tank 1 during diesel operation, since a second switching valve 25, which - as explained later - the return line arm 14b connected via a main tank return line 27 to a main tank 17, is connected in a blocking position.
  • the second switching valve 25 and the third switching valve 15 are always operated simultaneously and can be operated by a common relay. Also, the two switching valves 25, 15 can be combined to form a switching valve.
  • the rape fuel is filled in the main tank 17 of the device or vehicle, the main tank 17 generally having a larger capacity than the auxiliary tank 1.
  • the internal combustion engine is operated predominantly with rapeseed fuel and should be operated only for starting, at low load and for stopping with diesel fuel. Accordingly, the diesel fuel consumption is significantly lower than the rapeseed fuel consumption and the auxiliary tank 1 for the diesel fuel can be made considerably smaller.
  • the tank volumes are sized such that at average operating conditions, both tanks reach a tank level requiring refueling at about the same time.
  • the rapeseed fuel via a pre-filter 18 through a heat exchanger 19 (these two components can also be connected in reverse order) via a feed pump 20 with a pressure relief valve device and a main filter 21 to a second input of the first switching valve 5, then is in a rapeseed fuel via the supply line 7 of the fuel metering device 8 supplying switching position.
  • the aforementioned components are accordingly over fuel line sections 22 interconnected from the main tank 17 to the beginning in the switching valve 5.
  • fuel line section 22 branches off a short-circuit line 23, in which a fourth switching valve 24, which is also designed as a 2/2-way valve, is turned on.
  • the short-circuit line 23 opens into the main tank return line 27, which opens into the main tank 17.
  • the fourth change-over valve 24 is in a blocking position, that is to say that no rapeseed fuel delivered by the feed pump 20 reaches the main tank 17 via the short-circuit line 23.
  • the aforesaid second change-over valve 25 is switched to passage, that is, rapeseed fuel controlled by the fuel metering device 8 is returned to the main tank 17 via the return line arm 14b and the main tank return line 27.
  • the third switching valve 15 is thus connected in the blocking position.
  • the heat exchanger 19 is controlled by a fifth, also designed as a 2/2-way valve switching valve 26 connected to the cooling circuit of the internal combustion engine.
  • the rapeseed fuel is viscous at normal ambient temperature and accordingly poorly recoverable. Therefore, the rapeseed fuel during operation of the internal combustion engine is heated to about 55 ° C to 75 ° C, preferably to 65 ° C and then has a similar viscosity as diesel fuel. Incidentally, such heating is provided up to ambient temperatures at which rapeseed fuel can still be conveyed due to its viscosity, for example minus 5 ° C.
  • the heating can be continuous or else temperature-controlled, in this case, for example, behind the heat exchanger 19 or behind the feed pump 20, a temperature sensor is provided.
  • the rape fuel can be released from the rape fuel system and the Rapeseed fuel system can be filled with diesel fuel.
  • This (winter) filling is especially intended to keep the tank intervals at the normal level during the pure diesel winter operation.
  • it can finally be provided that at temperatures below -5 ° C automatically switched to diesel mode.
  • Fig. 3 shows the switching from diesel operation to rapeseed operation, the components have been previously explained and only the individual switching valves are switched differently.
  • the first switching valve 5 When switching from diesel operation to rapeseed initially the first switching valve 5 is still in the blocking circuit for rapeseed fuel to the fuel metering device 8 and the fourth switching valve 24 in the Abêt ein in the main tank 17.
  • the rapeseed fuel circuit has in this switching position to a low pressure to the pumping losses keep as low as possible.
  • the delivery pump 20 with a delivery rate of about 5 liters per minute, as well as the other elements of the rapeseed fuel train, are the normal elements for fuel delivery installed on an internal combustion engine.
  • the feed pump 20 is mechanically driven. A mechanical drive is chosen because of the required high drive power.
  • the fuel pressure in front of the fuel metering device 8 would break in the short term.
  • the timing of the switching operation can be pressure-controlled, for example, by measuring and evaluating the pressure prevailing in the rapeseed fuel line section 22 before the first changeover valve 5.
  • the delay time value which varies as a function of the rotational speed of the internal combustion engine in the electronic control device 12 controlling the entire system. Due to the known line volumes and the speed-dependent known delivery rate of the feed pump 20, this value can be determined very accurately and accordingly the switching delay can be determined very accurately.
  • the second switching valve 25 and the third switching valve 15 are switched time-delayed, in the form that the first switched to Abêtung in the auxiliary tank 1 third switching valve 15 in his Locking position is adjusted and simultaneously the second switching valve 25 is moved to the Abêtposition of fuel in the main tank 17.
  • the delay is such that no rapeseed fuel is discharged into the additional tank 1.
  • Fig. 4 is shown the switching from rapeseed fuel to diesel fuel.
  • the electric feed pump 3 is first switched on before the switching of the first switching valve 5, so that in the line sections 6, a sufficient pressure is built up. Because the electric pump 3 is operated at a constant speed, the time is up to a successful pressure build-up as a constant value determined and stored accordingly in a memory of the electronic control device 12.
  • the first switching valve 5 is switched to the passage position of diesel fuel to the fuel metering device 8, and the fourth switching valve 24 is simultaneously switched to the dumping position in the main tank 17.
  • the second switching valve 25 and the third switching valve 15 are again delayed simultaneously switched, but in this switching operation, the time delay is so long that the return line 14 leads at least to the branching point in the return line arms 14a, 14b diesel fuel. That is, the rinsing process of the rapeseed fuel is timed so long that no rape fuel can get into the auxiliary tank 1, and it, as already stated, is completely unproblematic when a small amount of diesel fuel enters the main tank 17.
  • Fig. 5 illustrated embodiment differs from that in the Fig. 1 - 4th illustrated embodiment in that the first switching valve 5a is connected differently and the line section 6d opens via a check valve 28 directly into the supply line 7.
  • the first switching valve 5a is switched so that it ab interviewedt the rapeseed fuel into the short-circuit line 23 in the illustrated first switching position.
  • a throttle device may be used, which maintains the pressure level in the fuel line sections 22 at a predetermined value.
  • the diesel fuel for diesel fuel operation the internal combustion engine via the check valve 28 is conveyed directly into the supply line 7.
  • the check valve 28 prevents rapeseed fuel from entering the auxiliary tank 1 in the line section 6d and thus when the feed pump 3 is switched off. Accordingly, another check valve may be inserted from the first switching valve 5a coming into the supply line 7.
  • a manual feed pump be used. The switching operations correspond mutatis mutandis to the previously described switching operations according to the first embodiment.
  • This device reliably prevents the case where the internal combustion engine is operated in the preset load limit range between the two fuel supply systems continuously switched back and forth.
  • a switch from rape fuel operation to diesel fuel operation is possible at any time.
  • a corresponding switch device is provided in the control cabin of the device or vehicle, with which the switching operation is initiated.
  • Such a switching operation is useful if, for example, an inventively designed internal combustion engine in an agricultural Device or vehicle is installed and this device or vehicle is on the way back to the depot. The driver knows that for switching off the internal combustion engine, a switching process must be carried out from rapeseed fuel operation to diesel fuel operation, because the internal combustion engine can be started or should at least normally only with diesel fuel.
  • the manual switching is provided.
  • the driver or operator receives corresponding reference values, if appropriate as a function of operating conditions, for example in the form of stickers.
  • the corresponding rinsing operations are represented by, for example, illuminant displays (for example light-emitting diodes).
  • the rape fuel operation is indicated by a number (for example, six) of lit LEDs, while in diesel mode the LEDs are extinguished.
  • the light-emitting diodes When changing from Rapskraftstoff Bis to diesel fuel operation is then switched from a constant light operation to a fast flashing operation and extinguish according to the progress of the flushing the LEDs. Conversely, in a change from diesel fuel operation to rapeseed fuel operation, the light-emitting diodes light up one after the other in a slower frequency up to the aforementioned continuous light operation.
  • the proportion of the respective fuel according to the respective display is normally related to the rail 10 and is calculated or alternatively or additionally measured by a sensor.
  • the information about the progress of the respective rinsing process can also be displayed in a different form or else additionally or alternatively in the form of an acoustic signal transmission.
  • the corresponding drive unit evaluates the already basically explained signals to load, speed of the internal combustion engine, the pressures in the injection total system and the stored parameters on line diameter and line lengths including the resulting resulting volume.
  • a manually initiated flushing can be provided as a further option to passively increase the idle speed when the purge operation is initiated at low idle speed. This option is provided to reduce purging time.
  • the electronic control device 12 which controls the internal combustion engine as a whole, can furthermore be configured such that a previously calculated volumetric flow for achieving or maintaining the desired pressure in the rail 10 is calculated via the fuel metering device.
  • This total volume flow consists of two parts, the pilot proportion and the controller part.
  • the pilot proportion is essentially directly proportional to the amount per injection and the speed of the internal combustion engine, in principle from the fuel consumption.
  • the function-related leaks of the injectors 11 are already held at the pilot fraction.
  • the behavior of the fuel metering device 8 is in turn stored in the electronic control device 12 in the form of characteristic curves. This behavior is also dependent on the properties of the fuel, in particular the viscosity. Accordingly, storage can be carried out separately for diesel fuel and rapeseed fuel, but it can also be provided to store only the characteristic diagrams, for example for diesel fuel, and to determine the characteristic fields for rapeseed fuel from these characteristics maps with corresponding correction factors.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
EP08010662A 2007-07-07 2008-06-12 Moteur à combustion interne fonctionnant au diesel ou au carburant biogène au choix Not-in-force EP2014908B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08010662T PL2014908T3 (pl) 2007-07-07 2008-06-12 Silnik spalinowy pracujący naprzemiennie na oleju napędowym lub paliwie biogenicznym

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007031781A DE102007031781A1 (de) 2007-07-07 2007-07-07 Wechselweise mit Dieselkraftstoff oder einem biogenen Kraftstoff betreibbare Brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP2014908A1 true EP2014908A1 (fr) 2009-01-14
EP2014908B1 EP2014908B1 (fr) 2010-09-22

Family

ID=39865180

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08010662A Not-in-force EP2014908B1 (fr) 2007-07-07 2008-06-12 Moteur à combustion interne fonctionnant au diesel ou au carburant biogène au choix

Country Status (5)

Country Link
EP (1) EP2014908B1 (fr)
AT (1) ATE482334T1 (fr)
DE (2) DE102007031781A1 (fr)
ES (1) ES2353567T3 (fr)
PL (1) PL2014908T3 (fr)

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WO2013100844A1 (fr) * 2011-12-28 2013-07-04 Scania Cv Ab Système et procédé pour estimer la teneur en combustible supplémentaire d'un mélange carburant

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DE102008005183A1 (de) 2008-01-19 2009-07-23 Deutz Ag Automatische Kraftstofferkennung
DE102010035722B4 (de) * 2010-05-20 2012-12-13 Wolfram Kangler Verfahren und Vorrichtung zum Betrieb einer Brennkraftmaschine mit zumindest zwei unterschiedlichen Kraftstoffsorten
DE102014220437A1 (de) * 2014-10-09 2016-04-14 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Spülen des Kraftstoffsystems einer Brennkraftmaschine

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DE3929115A1 (de) * 1989-09-01 1991-03-07 Elsbett L Einspritzsystem fuer eine brennkraftmaschine
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WO2006005930A2 (fr) * 2004-07-08 2006-01-19 Regenatec Limited Moteurs a combustion interne fonctionnant grace a l'huile vegetale
FR2873752A1 (fr) * 2004-07-28 2006-02-03 Paul Ledun Dispositif de double alimentation carburant pour moteur diesel
DE202005007712U1 (de) * 2005-05-11 2006-09-21 Storimpex Im- & Export Gmbh Pflanzenölbetrieb von Dieselmotoren mit Spülung
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FR2902147B1 (fr) * 2006-06-07 2012-08-24 Lycee D Enseignement Agricole Prive De Savy Berlette Procede d'alimentation d'un moteur thermique, notamment a partir d'huile vegetale.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4620568A (en) * 1985-10-09 1986-11-04 Sumerford Harold A Vehicle off road fuel use indicator
DE3800585A1 (de) 1987-01-13 1988-07-28 Kloeckner Humboldt Deutz Ag Vorrichtung zum alternativen betreiben einer dieselbrennkraftmaschine mit dieseloel und rapsoel
DE3929115A1 (de) * 1989-09-01 1991-03-07 Elsbett L Einspritzsystem fuer eine brennkraftmaschine
DE202004010109U1 (de) * 2004-06-28 2004-10-07 Kunkel, Alexander Vorrichtung zur Versorgung eines Motors eines Kraftfahrzeugs mit Kraftstoff
WO2006005930A2 (fr) * 2004-07-08 2006-01-19 Regenatec Limited Moteurs a combustion interne fonctionnant grace a l'huile vegetale
FR2873752A1 (fr) * 2004-07-28 2006-02-03 Paul Ledun Dispositif de double alimentation carburant pour moteur diesel
DE202005007712U1 (de) * 2005-05-11 2006-09-21 Storimpex Im- & Export Gmbh Pflanzenölbetrieb von Dieselmotoren mit Spülung
DE102007005575A1 (de) * 2007-02-02 2008-08-07 PTN Pflanzenöltechnik Nord GmbH Brennstoffmaschine mit zwei Kraftstoffbehältern

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013100844A1 (fr) * 2011-12-28 2013-07-04 Scania Cv Ab Système et procédé pour estimer la teneur en combustible supplémentaire d'un mélange carburant

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Publication number Publication date
ATE482334T1 (de) 2010-10-15
DE102007031781A1 (de) 2009-01-08
ES2353567T3 (es) 2011-03-03
DE502008001367D1 (de) 2010-11-04
PL2014908T3 (pl) 2011-04-29
EP2014908B1 (fr) 2010-09-22

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