DE19635220A1 - Control unit for diesel engines running on oil or fat - Google Patents

Control unit for diesel engines running on oil or fat

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Publication number
DE19635220A1
DE19635220A1 DE19635220A DE19635220A DE19635220A1 DE 19635220 A1 DE19635220 A1 DE 19635220A1 DE 19635220 A DE19635220 A DE 19635220A DE 19635220 A DE19635220 A DE 19635220A DE 19635220 A1 DE19635220 A1 DE 19635220A1
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Germany
Prior art keywords
fuel
fat
control unit
oil
unit according
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DE19635220A
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German (de)
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Georg Lohmann
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Individual
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Individual
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Priority to DE19635220A priority Critical patent/DE19635220A1/en
Publication of DE19635220A1 publication Critical patent/DE19635220A1/en
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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
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/16—Other apparatus for heating fuel
    • 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
    • F02D19/0621—Purging of the fuel system
    • 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
    • F02D19/0649—Liquid fuels having different boiling temperatures, volatilities, densities, viscosities, cetane or octane numbers
    • F02D19/0652—Biofuels, e.g. plant oils
    • 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
    • F02D19/0668—Treating or cleaning means; Fuel filters
    • 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
    • F02D19/0684—High pressure fuel injection systems; Details on pumps, rails or the arrangement of valves in the fuel supply and return systems
    • 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
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/04—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
    • F02M31/10—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot liquids, e.g. lubricants or cooling water
    • 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
    • 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

Abstract

The engine runs on animal fat or on vegetable oil and uses a special fuel for starting while the fat or oil is still very viscous. After starting, the engine is automatically switched over to the use of fat or oil. This is controlled by a vacuum switch and is also dependent on the viscosity of the fat or oil. The components (1-6) of the control system, which are heated and come into contact with the fat or oil are mounted in a housing so that the parts remain warm and the use of starter fuel is reduced. Any surplus fuel fed to the engine is returned and flows to an intermediate tank which contains a contact making float.

Description

Biologische Kraftstoffe (Öle und Fette von Pflanze und Tier) haben gemeinsam, daß sie wegen ihres hohen Flammpunktes, wegen ihrer Zähigkeit oder wegen ihrer Eigenschaft, bei Raumtemperatur fest zu sein, in herkömmlichen Dieselmotoren für Fahrzeuge bisher kaum Anwendung finden. Lediglich bei den Patenten DE 38 00 585 und DE 44 33 500 sind gangbare Wege vorgezeichnet worden, die aber im Praxisbetrieb Mängel zeigten.Biofuels (oils and fats from plants and animals) have in common that because of their high flash point, because of their toughness or because of their property, at room temperature to be firm, in conventional diesel engines for vehicles so far hardly find application. Only in the patents DE 38 00 585 and DE 44 33 500 feasible ways have been mapped out, but in Practical operation showed defects.

Bei beiden Erfindungen findet unvermeidbar eine Vermischung der beiden Kraftstoffarten statt, die bei DE 38 00 585 als nur geringfügig beschrieben wird. In der Praxis kann eine wiederholte geringfügige Vermischung des Startkraftstoffes mit dem Betriebs­ kraftstoff dazu führen, daß der Tank mit dem Startkraftstoff überwiegend Betriebskraftstoff enthält, z. B. wenn er fast leer ist. Das führt dann zu Startproblemen, deren Ursache nicht sofort erkennbar ist.In both inventions, there is inevitable a mixture of the two types of fuel instead, which in DE 38 00 585 as only is slightly described. In practice, a repeated one slight mixing of the starting fuel with the plant Fuel cause the tank to contain the starting fuel mainly contains fuel, e.g. B. when it is almost empty is. This then leads to start problems, the cause of which is not immediate is recognizable.

Bei der Erfindung DE 44 33 500, die auch den Einsatz von Fetten als Treibstoff ermöglicht, treten die gleichen Probleme auf und sie verstärken sich dadurch, daß Fette schwerer sind als die Startkraftstoffe Diesel und RME (Rapsölmethylester) und diese schweren Bestandteile der Kraftstoffmischung im Tank beim Startvorgang im ruhenden Fahrzeug von der Pumpe zuerst angesaugt werden. Dies führt wieder zu Startproblemen.In the invention DE 44 33 500, which also the use of fats as Fuel enables them to experience the same problems and they are reinforced by the fact that fats are heavier than that Starting fuels diesel and RME (rapeseed oil methyl ester) and these heavy components of the fuel mixture in the tank Starting process in the stationary vehicle is sucked in by the pump first will. This leads to start problems again.

Die beschriebenen Betriebsstörungen wurzeln hauptsächlich in den Spülvorgängen, bei denen die Einspritzpumpe vom biologischen Kraftstoff befreit werden soll. Bekanntermaßen springen kalte Dieselmotoren nicht an, wenn ihnen zu kaltes Pflanzenöl oder Fett eingespritzt wird. Das ist immer dann der Fall, wenn der Spülvorgang nicht ausreichend lang war und die Außentemperaturen niedrig sind (unter 10°).The described malfunctions are mainly rooted in the Flushing processes in which the injection pump is biological Fuel is to be freed. As is known, cold jump Diesel engines don't turn on if they're too cold vegetable oil or fat is injected. This is always the case if the Rinsing process was not long enough and the outside temperatures are low (below 10 °).

Beim Fettbetrieb bei DE 44 33 500 tritt der Fehler nach nicht ausreichender Spülung auf, daß in der Rücklaufleitung zwischen Pumpe und Tank erkaltete Fettreste in den Tiefpunkten der Leitung erstarren und beim Kaltstart das Zurückfließen des Startkraft­ stoffes behindern.The error does not occur when operating with grease on DE 44 33 500 sufficient flushing on that in the return line between Pump and tank cooled fat residues in the low points of the line freeze and when the cold starts the backflow of the starting power hinder fabric.

Eine weitere Schwäche der Erfindung DE 44 33 500 ist, daß das Umschalten auf den Fahrkraftstoff manuell und durch Probieren ermittelt werden muß. Das führt zwangsläufig zu einem höheren Verbrauch an Startkraftstoff als zwingend notwendig, weil der präzise Zeitpunkt nicht zufällig gefunden werden kann.Another weakness of the invention DE 44 33 500 is that Switching to the fuel manually and by trying must be determined. This inevitably leads to a higher one Start fuel consumption is imperative because of the precise time cannot be found accidentally.

Die vorliegende Erfindung hat das Ziel, die genannten Schwachstellen zu beseitigen und den Betrieb von Fahrzeugen mit biologischen Kraftstoffalternativen sicherer und anwenderfreundlicher zu gestalten. The present invention aims to achieve the above Eliminate vulnerabilities and operate vehicles with biological fuel alternatives safer and to make it more user-friendly.  

Ziel der Erfindung ist es, die Mängel und Betriebsstörungen beim Betrieb von Fahrzeugen mit biologischen Kraftstoffen (Fetten und Ölen von Pflanze und Tier) weiter zu reduzieren. Dieses Ziel wird durch die nachfolgend beschriebenen Verbesserungen erreicht.The aim of the invention is to address the shortcomings and malfunctions Operation of vehicles with biological fuels (fats and Oils from plants and animals). That goal will achieved through the improvements described below.

Beschreibung der ErfindungDescription of the invention Umschaltvorgang vom Start- auf den FahrtkraftstoffSwitching process from start to driving fuel

Beim Kaltstart der Anlage gemäß Beschreibung besteht jetzt die Möglichkeit, ohne Zutun des Fahrers vom Startkraftstoff auf den Fahrkraftstoff umzuschalten. Dieser Vorgang wird durch einen Unterdruckschalter (UDR) gesteuert. Ausgangspunkt hierzu ist die Tatsache, daß alle biologischen Kraftstoffe in kaltem Zustand zäher sind, oder sogar fest (Fett). Soll nach dem Kaltstart mit Fett gefahren werden, kann man das Fahrzeug schon in Fettstellung starten. Die ansaugende Einspritzpumpe fordert gemäß der Schalterstellung Fett. Weil beim kalten Motor fließendes, förderbares Fett nicht zur Verfügung steht, wird nach dem Auslösen des Füllvorgangs durch den kontaktgebenden Schwimmer der Sog auf der Saugseite der Pumpe soweit anwachsen, bis über den UDR das Magnetventil Zulauf Startkraftstoff kurzzeitig geöffnet. Danach sinkt der Unterdruck wieder ab und der UDR macht dasselbe Magnetventil wieder stromlos. Dieser Vorgang wiederholt sich solang, bis der Kraftstoff Fett flüssig geworden ist, und sich der auslösende Sog nicht mehr aufbauen kann. Von diesem Moment an, (die Pumpe saugt erstmals verflüssigtes Fett) läuft der Motor solang mit Fett, wie die Schalterstellung "Fett" erhalten bleibt. In der Fahrpraxis bedeutet dieser selbsttätig ablaufende Vorgang einen Gewinn an Fahrkomfort, denn der Zeitpunkt der Fettschmelze muß nicht beobachtet oder abgewartet werden. Die Steuerung ermöglicht den naht losen Übergang vom Startkraftstoff zum Fahrkraftstoff. Im Prinzip kann diese Art der Steuerung bei jedem Biokraftstoff Anwendung finden, lediglich der auslösende Sog wird am UDR der Viskosität entsprechend eingestellt. When the system is cold started as described, there is now Possibility to switch from the starting fuel to the driver without the driver having to do anything Switch fuel. This is done by a Vacuum switch (UDR) controlled. The starting point for this is the Fact that all biofuels are cold are tougher, or even firm (fat). After the cold start with If the vehicle is driven in fat, the vehicle can already be in fat position start. The priming injection pump requests according to the Switch position fat. Because when the engine is cold, Recoverable fat is not available after it is triggered the filling process by the contacting float on the suction side of the pump until the Solenoid valve inlet start fuel briefly opened. After that the vacuum drops again and the UDR does the same Solenoid valve is de-energized again. This process is repeated until the fuel has become fat, and the triggering suction can no longer build. Since this moment, (the pump sucks liquefied fat for the first time) the engine is running as long as with fat, as the switch position "fat" is retained. In driving practice, this means that the process runs automatically a gain in driving comfort, because the time of the fat melt there is no need to watch or wait. The control enables a seamless transition from starting fuel to Driving fuel. In principle, this type of control can be used by everyone Biofuels are used, only the trigger pull is at the UDR set the viscosity accordingly.  

Kraftstoffrückleitung über den ZwischenbehälterFuel return via the intermediate tank

Die Steuerungseinheit macht die Rücklaufleitung zu den Tanks überflüssig. Der aus der Einspritzpumpe abfließende Kraftstoff wird jetzt über eine möglichst kurze Leitung in einen Zwischenbehälter (ZWB) geführt. Dieser ZWB hat eine Zuleitung und eine Ableitung am Boden des Behälters und er enthält einen Schwimmer, der am Tiefpunkt Kontakt gibt. Die Ableitung führt zum Magnetventil Umlauf und danach in den Pumpeneingang. Ist das Magnetventil Umlauf geöffnet, flieht der Kraftstoff im Kreislauf zwischen Pumpe, ZWB und Magnetventil Umlauf. Dabei sinkt das Kraftstoffniveau im ZWB langsam weiter ab, entsprechend dem Verbrauch des Motors. Bei diesem Vorgang können ständig Luft und Gase über den ZWB abgegeben werden.The control unit makes the return line to the tanks superfluous. The fuel flowing out of the injection pump is now in the shortest possible line in one Intermediate container (ZWB) guided. This ZWB has a supply line and a drain at the bottom of the container and it contains one Swimmer who makes contact at the lowest point. The derivation leads to Solenoid valve circulation and then into the pump inlet. Is this Solenoid valve circulation open, the fuel escapes in the circuit between pump, ZWB and solenoid valve circulation. That sinks Fuel level in the ZWB slowly decreases further, according to the Engine consumption. During this process, air and Gases are delivered via the ZWB.

Gibt der Schwimmer am Tiefpunkt Kontakt, löst der Taktgeber (TG) einen zeitlich einstellbaren Stromfluß zum Relais (SR) aus. Dieses Relais macht beim Schaltvorgang das Magnetventil Umlauf stromlos und öffnet das vorgewählte Magnetventil Kraftstoffzulauf vom Tank. Während der einstellbaren Taktzeit (z. B. 4 sek) saugt die Einspritzpumpe Kraftstoff aus dem Tank und füllt über die kurze Rücklaufleitung den ZWB wieder auf. Nach Ablauf der Taktzeit wird das Relais SR wieder stromlos und öffnet dadurch das Magnetventil Umlauf. Dieser Ablauf wiederholt sich, solang der Motor läuft. Die Öffnung des eingestellten Magnetventils Kraftstoff Zulauf wird dem Fahrer optisch angezeigt. Das hat deutliche Vorteile. Aus der Dauer der Taktzeit und den Pausen dazwischen sind Funktionieren und Fehler ablesbar. Beispielsweise muß bei gleichbleibendem Kraftstoffverbrauch die Pause zwischen den Taktzeiten immer gleich sein (Niveau im ZWB sinkt langsam ab entsprechend der Förderung in die Zylinder). Werden die Pausen bei gleicher Ausgangslage kürzer, kann an folgende Störungen gedacht werden: Sieb am Pumpenausgang ist verstopft, Kraftstoffilter sind verschmutzt, es wird Luft angesaugt, die Beheizung des Tanks mit dem biologischen Kraftstoff stimmt nicht, was die förderbare Menge reduzieren würde.If the float makes contact at the lowest point, the clock (TG) triggers a time-adjustable current flow to the relay (SR). This relay makes the solenoid valve circulate during the switching process de-energized and opens the preselected solenoid valve fuel feed from the tank. Sucks during the adjustable cycle time (e.g. 4 seconds) the fuel injection pump from the tank and fills over the short return line to the ZWB again. After the cycle time the SR relay is de-energized and thereby opens the Solenoid valve circulation. This process is repeated as long as the The engine is running. The opening of the set solenoid valve The fuel supply is visually displayed to the driver. That has clear advantages. From the duration of the cycle time and the breaks in between, functions and errors can be read. For example the break between the cycle times are always the same (level in the ZWB slowly decreases according to the promotion in the cylinder). Are the breaks at same starting position shorter, can think of the following disorders : The strainer at the pump outlet is clogged, there are fuel filters dirty, air is sucked in, the heating of the tank the biological fuel is not correct as to what the recoverable amount would reduce.

Die Taktzeit (=Füllzeit) ist so bemessen, daß bei Höchstdrehzahl der ZWB befüllt werden kann ohne überzulaufen. Die Größe des ZWB ist bestimmt durch den Verbrauch des Motors, die vorgesehenen Taktzeiten und die Pausen dazwischen. Der ZWB soll aber möglichst klein sein. Beim Spülvorgang, also dem Übergang zwischen Fahrkraftstoff und Startkraftstoff muß auch diese Kraftstoffmenge verbraucht bzw. entmischt werden, damit der Motor ausgekühlt sicher anspringt. The cycle time (= filling time) is dimensioned so that at maximum speed the ZWB can be filled without overflowing. The size of the ZWB is determined by the consumption of the engine, the intended Cycle times and the breaks in between. The ZWB should, however, if possible be small. During the rinsing process, i.e. the transition between Driving fuel and starting fuel must also have this amount of fuel consumed or separated so that the engine cools down starts safely.  

Innenbeheizter FettfilterInternally heated grease filter

Werden bei Raumtemperatur feste Kraftstoffe (Fette) verwendet, wie bei DE 44 33 500 vorgesehen, ist ein anderer Kraftstoffilter notwendig. Versuche mit herkömmlichen Dieselfiltern aus dem Fahrzeugbau haben gezeigt, daß die gebräuchlichen Heizungen des Sockels mit Kühlwasser oder Elektrizität nicht ausreichen. Da die Wärmeübertragung vom Sockel in die gebräuchliche Filterpatrone wegen ihres Volumens und der Dichtungen sehr mangelhaft ist, dauert es bei niedrigen Temperaturen (unter 0°) bis zu einer Stunde, bis das Fett in der Filterpatrone so dünnflüssig ist, daß es teilweise passieren kann. Das ist unbefriedigend, den bis dahin muß mit Startkraftstoff gefahren werden.Are solid fuels (greases) used at room temperature, such as provided in DE 44 33 500 is another fuel filter necessary. Experiments with conventional diesel filters from the Vehicle construction has shown that the usual heaters of the Sockets with cooling water or electricity are not sufficient. Since the Heat transfer from the base to the usual filter cartridge is very poor due to their volume and seals, it takes up to one at low temperatures (below 0 °) Hour until the fat in the filter cartridge is so thin that it can happen partially. That is unsatisfactory until then must be run with starting fuel.

Der innenbeheizte Fettfilter ist gekennzeichnet durch die größtmögliche Nähe zwischen Wärmequelle, Zu- und Abfluß und dem auswechselbaren Filtervlies. Der Wärmetauscher, hier ein Wendel aus Kupferrohr, geht durch den Mantel des Filtergehäuses bis auf einige Millimeter an die Zu-und Abflußstellen heran. Die aufsteigende Wärme verflüssigt schon nach Sekunden einen kleinen Bereich des darüberliegenden Filtervlieses. Weil in der Anordnung gemäß der vorliegenden Beschreibung nur soviel Kraftstoff fließt, wie tatsächlich verbraucht wird, (einige Liter/Stunde) kann die wirksame Filteroberfläche viel kleiner sein.The internally heated grease filter is characterized by the greatest possible proximity between heat source, inflow and outflow and exchangeable filter fleece. The heat exchanger, here a coil made of copper pipe, goes through the jacket of the filter housing up to a few millimeters to the inflow and outflow points. The rising heat liquefies a small one after just a few seconds Area of the filter fleece above. Because in the arrangement According to the present description, only as much fuel flows how is actually consumed (a few liters / hour) effective filter surface can be much smaller.

Der innenbeheizte Fettfilter hat auf der Oberseite ein Sichtfenster, das den Kontrollblick auf das Filtervlies zuläßt und ohne Werkzeug bei Bedarf geöffnet werden kann. (Flügelmuttern) Am Filtergehäuse angebracht ist ein Wärmefühler, der zu einem verstellbaren Thermostat führt. Der Thermostat steuert die Wärmezufuhr zu den beheizten Teilen der Anlage. In der Erfindung DE 44 33 500 gibt es eine statische oder manuell steuerbare Wärmezufuhr, die aber den Anforderungen der unterschiedlichen Bio-Kraftstoffe Öle und Fette in der Praxis nicht gerecht wird. Es hat sich gezeigt, daß beim Einsatz von dünnflüssigen Ölen bis hin zu sehr harten Fetten der optimale Temperaturbereich gut 40 Grad Celsius breit ist. Dem kann man sich nur durch einen verstellbaren Thermostat nähern.The internally heated grease filter has a top Viewing window that allows a control view of the filter fleece and can be opened without tools if necessary. (Wing nuts) Attached to the filter housing is a heat sensor that leads to a adjustable thermostat leads. The thermostat controls the Heat supply to the heated parts of the system. In the invention DE 44 33 500 there is a static or manually controllable Heat supply, but the requirements of different Bio fuels oils and fats do not do justice in practice. It has been shown that when using thin oils up to towards very hard fats, the optimal temperature range is around 40 Degrees Celsius is wide. You can only do that by one approaching adjustable thermostat.

Isolierendes Gehäuse für die wärmeliebenden KomponentenInsulating housing for the heat-loving components

In der Praxis hat sich gezeigt, daß die erwärmten Teile der Anlage, das sind jene, die mit dem Treibstoff Fett in Kontakt sind, in einem Gehäuse untergebracht werden sollten.In practice it has been shown that the heated parts of the Attachment, these are the ones that come into contact with the fuel fat should be housed in a housing.

So sind sie vor dem Fahrtwind geschützt und kühlen ohne Wärmezufuhr langsamer aus, was den Verbrauch von Startkraftstoff wieder reduziert.So they are protected from the wind and cool without Heat input slower, resulting in the consumption of starting fuel reduced again.

BezugszeichenlisteReference list

11

. Isolierendes und schützendes Gehäuse
. Insulating and protective housing

22nd

Innenbeheizter Fettfilter mit Sichtfenster und abnehmbaren Verschlußdeckel
Internally heated grease filter with viewing window and removable cover

33rd

Zwischenbehälter mit kontaktgebendem Schwimmer
Intermediate tank with contacting float

44th

Unterdruckschalter mit Leitungsanschluß an die Fettleitung zum Pumpeneingang
Vacuum switch with line connection to the grease line to the pump inlet

55

Magnetventil Fettzulauf
Solenoid valve grease inlet

66

Magnetventil Kraftstoffumlauf
Solenoid valve fuel circulation

77

Heizwasser Ein/Ausgang und Fettleitung vom Tank
Heating water inlet / outlet and grease line from the tank

88th

Fettleitung zum Pumpeneingang
Grease line to the pump inlet

99

Umlaufleitung zum Pumpeneingang
Circulation line to the pump inlet

1010th

Umlaufleitung vom Pumpenausgang
Circulation line from the pump outlet

Claims (7)

1. Steuerungseinheit für Dieselmotoren, die mit Fetten und Ölen von Pflanze und Tier betrieben werden.1. control unit for diesel engines, which are operated with fats and oils from plants and animals. 2. Steuerungseinheit nach Anspruch 1 dadurch gekennzeichnet, daß sich die erfindungsgemäßen Teile in einem Isolierenden und schützenden Gehäuse befinden.2. Control unit according to claim 1, characterized in that the parts of the invention in an insulating and protective housing. 3. Steuerungseinheit nach Anspruch 2 gekennzeichnet dadurch, daß diese Teile durch eine Abzweigung des umlaufenden Kühlmittels erwärmt werden.3. Control unit according to claim 2, characterized in that that these parts by a branch of the circulating coolant be heated. 4. Steuerungseinheit nach Anspruch 1 gekennzeichnet dadurch, daß der Umschaltvorgang vom Startkraftstoff auf den Fahrkraftstoff durch einen Unterdruckschalter und die Zähigkeit der Kraftstoffe gesteuert wird.4. Control unit according to claim 1, characterized in that that the switching process from the starting fuel to the driving fuel through a vacuum switch and the toughness of the fuels is controlled. 5. Steuerungseinheit nach Anspruch 1 gekennzeichnet dadurch, daß der zurückfließende Kraftstoff in einen Zwischenbehälter mit kontaktgebendem Schwimmer geführt wird.5. Control unit according to claim 1, characterized in that that the fuel flowing back into an intermediate container contacting swimmer. 6. Steuerungseinheit nach Anspruch 1 gekennzeichnet dadurch, daß die Füllzeiten durch einen einstellbaren Taktgeber geregelt werden können.6. Control unit according to claim 1, characterized in that the filling times are regulated by an adjustable clock can. 7. Steuerungseinheit nach Anspruch 1 gekennzeichnet dadurch, daß sie einen innenbeheizten Kraftstoffilter für den Fettbetrieb enthält, der im Deckel ein Sichtfenster aufweist und der ohne Werkzeug zu öffnen ist.7. Control unit according to claim 1, characterized in that that they have an internally heated fuel filter for grease operation contains, which has a window in the lid and without Open the tool.
DE19635220A 1996-08-30 1996-08-30 Control unit for diesel engines running on oil or fat Ceased DE19635220A1 (en)

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DE19635220A DE19635220A1 (en) 1996-08-30 1996-08-30 Control unit for diesel engines running on oil or fat

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DE19635220A DE19635220A1 (en) 1996-08-30 1996-08-30 Control unit for diesel engines running on oil or fat

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DE19635220A1 true DE19635220A1 (en) 1998-05-14

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1233171A1 (en) * 2001-02-13 2002-08-21 Siegfried Herzog Device for the thermal treatment of viscous fuels for internal combustion engines
WO2004029513A2 (en) 2002-09-24 2004-04-08 Enginion Ag Device for utilizing used fat and used oil
DE10060573B4 (en) * 2000-12-06 2005-07-07 Ralph Finger Vegetable oil engine plant
WO2006005930A2 (en) * 2004-07-08 2006-01-19 Regenatec Limited Operating internal combustion engines with plant oil
DE102004050601A1 (en) * 2004-10-15 2006-04-27 Kangler, Wolfram, Dipl.-Phys. The heat exchange module
DE202005007712U1 (en) * 2005-05-11 2006-09-21 Storimpex Im- & Export Gmbh Device for running of diesel engine with vegetable oil has control unit for automatic operation of switching valve in order to flush injection system of diesel engine with diesel fuel from diesel tank
DE102005053095B3 (en) * 2005-11-04 2007-01-18 Alexander Sellentin Fuel supply for diesel engine of e.g. motor vehicle, has tank from which mixture of diesel fuel and vegetable oil/fat is conveyed to fuel supply unit of injection pump exclusively in specific condition of fuel pipe system
WO2007043031A1 (en) * 2005-10-10 2007-04-19 Pt. Pura Barutama Apparatus for converting vegetable oil of diesel machine
WO2007048633A1 (en) * 2005-10-28 2007-05-03 Rainer Dirnhofer Rape/diesel valve
DE102007031781A1 (en) * 2007-07-07 2009-01-08 Deutz Ag Alternatively with diesel fuel or a biogenic fuel operable internal combustion engine
DE102007031779A1 (en) * 2007-07-07 2009-01-08 Deutz Ag Rapeseed oil engine
DE102007036804A1 (en) 2007-08-03 2009-02-05 Klümper Pflanzenöltechnik GmbH Device for optional operation of combustion engine with two different fuel places, has measuring instrument that is arranged in common feed line for measurement of fuel volume stream
US8963942B2 (en) 2004-12-03 2015-02-24 Intel Corporation Programmable processor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3117374A1 (en) * 1981-05-02 1982-12-02 Ernst 5014 Türnich Banik Diesel engine fuel
DE3800585A1 (en) * 1987-01-13 1988-07-28 Kloeckner Humboldt Deutz Ag Device for the alternative operation of a diesel internal combustion engine with diesel oil and rape seed oil

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3117374A1 (en) * 1981-05-02 1982-12-02 Ernst 5014 Türnich Banik Diesel engine fuel
DE3800585A1 (en) * 1987-01-13 1988-07-28 Kloeckner Humboldt Deutz Ag Device for the alternative operation of a diesel internal combustion engine with diesel oil and rape seed oil

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10060573B4 (en) * 2000-12-06 2005-07-07 Ralph Finger Vegetable oil engine plant
WO2002064967A1 (en) * 2001-02-13 2002-08-22 Siegfried Herzog Device for the thermal treatment of viscous fuel for internal combustion engines
EP1233171A1 (en) * 2001-02-13 2002-08-21 Siegfried Herzog Device for the thermal treatment of viscous fuels for internal combustion engines
WO2004029513A2 (en) 2002-09-24 2004-04-08 Enginion Ag Device for utilizing used fat and used oil
DE10244676B4 (en) * 2002-09-24 2006-03-30 Enginion Ag Device for waste grease and waste oil recovery
GB2431203B (en) * 2004-07-08 2008-08-20 Regenatec Ltd Operating internal combustion engines with plant oil
WO2006005930A2 (en) * 2004-07-08 2006-01-19 Regenatec Limited Operating internal combustion engines with plant oil
WO2006005930A3 (en) * 2004-07-08 2006-07-06 Regenatec Ltd Operating internal combustion engines with plant oil
GB2431203A (en) * 2004-07-08 2007-04-18 Regenatec Ltd Operating internal combustion engines with plant oil
DE102004050601A1 (en) * 2004-10-15 2006-04-27 Kangler, Wolfram, Dipl.-Phys. The heat exchange module
DE102004050601B4 (en) * 2004-10-15 2006-12-21 Kangler, Wolfram, Dipl.-Phys. The heat exchange module
US8963942B2 (en) 2004-12-03 2015-02-24 Intel Corporation Programmable processor
DE202005007712U1 (en) * 2005-05-11 2006-09-21 Storimpex Im- & Export Gmbh Device for running of diesel engine with vegetable oil has control unit for automatic operation of switching valve in order to flush injection system of diesel engine with diesel fuel from diesel tank
WO2007043031A1 (en) * 2005-10-10 2007-04-19 Pt. Pura Barutama Apparatus for converting vegetable oil of diesel machine
WO2007048633A1 (en) * 2005-10-28 2007-05-03 Rainer Dirnhofer Rape/diesel valve
DE102005053095B3 (en) * 2005-11-04 2007-01-18 Alexander Sellentin Fuel supply for diesel engine of e.g. motor vehicle, has tank from which mixture of diesel fuel and vegetable oil/fat is conveyed to fuel supply unit of injection pump exclusively in specific condition of fuel pipe system
DE102007031781A1 (en) * 2007-07-07 2009-01-08 Deutz Ag Alternatively with diesel fuel or a biogenic fuel operable internal combustion engine
DE102007031779A1 (en) * 2007-07-07 2009-01-08 Deutz Ag Rapeseed oil engine
DE102007036804A1 (en) 2007-08-03 2009-02-05 Klümper Pflanzenöltechnik GmbH Device for optional operation of combustion engine with two different fuel places, has measuring instrument that is arranged in common feed line for measurement of fuel volume stream

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