DE3008407A1 - Fuel heater for Diesel vehicle - has engine coolant feeding heating coil in fuel tank to prevent crystallisation and filter blockage - Google Patents
Fuel heater for Diesel vehicle - has engine coolant feeding heating coil in fuel tank to prevent crystallisation and filter blockageInfo
- Publication number
- DE3008407A1 DE3008407A1 DE19803008407 DE3008407A DE3008407A1 DE 3008407 A1 DE3008407 A1 DE 3008407A1 DE 19803008407 DE19803008407 DE 19803008407 DE 3008407 A DE3008407 A DE 3008407A DE 3008407 A1 DE3008407 A1 DE 3008407A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel
- heater
- heating coil
- engine coolant
- diesel vehicle
- 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.)
- Ceased
Links
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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K2015/03328—Arrangements or special measures related to fuel tanks or fuel handling
- B60K2015/03427—Arrangements or special measures related to fuel tanks or fuel handling for heating fuel, e.g. to avoiding freezing
-
- 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
Abstract
Description
Heizung für DieselkraftstofftanksHeating for diesel fuel tanks
Die Erfindung betrifft eine Heizschlange im Dieselkraftstofftank, mittels derer die Abwärme des Motors zur Erwärmung des Dieselkraftstoffs im Fahrzeugtank benutzt wird.The invention relates to a heating coil in the diesel fuel tank, by means of which the waste heat from the engine is used to heat the diesel fuel in the vehicle's tank is used.
Beim sogenannten "Cloud - Point" bei ca. 5 - 80C beginnen die geradkettigen Alkane oder n-Paraffine in Plattenform zu kristallisieren. Da der Dieselkraftstoff (DK) zu ca. 20% diese n-Paraffine enthält, werden bei extrem niedrigen Temperaturen die Kraftstoffleitungen und -filter durch diese Kristalle verstopft. Bei ca. -150C haben die n-Paraffine im DK einen Kristallisationsgrad erreicht, bei dem eine ausreichende Versorgung des Motors mit DK nicht mehr möglich ist. Die Versorqunq des Motors mit DK muß jedoch auch bei Temperaturen unter -150C gewährleistet sein.The straight-chain ones begin at the so-called "cloud point" at approx. 5-80C To crystallize alkanes or n-paraffins in plate form. Because the diesel fuel (DK) contains approx. 20% of these n-paraffins, are at extremely low temperatures clogged the fuel lines and filters with these crystals. At about -150C the n-paraffins in the DK have reached a degree of crystallization at which a sufficient Supply of the motor with DK is no longer possible. The supply of the engine with However, DK must also be guaranteed at temperatures below -150C.
Im Winter werden von den Raffinerien sog. "Winter-Dieselkraftstoffe" angeboten, die bis -150C fließfähig bleiben. Bei Temperaturen unter -150C können dem DK Petroleum oder Vergaserkraftstoffe zugesetzt werden, um die Fließfähigkeit zu erhalten. Ferner werden "Fließverbesserer" verwendet, die in einem Verhältnis von ca. 1 : 1000 zugesetzt werden und die Fließfähigkeit bis max. -250C erhalten.In winter, so-called "winter diesel fuels" are used by the refineries that remain flowable down to -150C. At temperatures below -150C you can the DK Petroleum or carburetor fuels are added to improve the flowability to obtain. Furthermore, "flow improvers" are used in a ratio of about 1: 1000 can be added and the flowability is maintained up to a maximum of -250C.
Diese neueren Fließverbesserer, mittels derer das Wachstumsverhalten der n-Paraffinkristalle modifiziert und die Ausbildung großflächiger Kristalle verhindert wird, müssen bei Temperaturen oberhalb des Cloud - Point zugesetzt werden. Es bieten sich dabei nur die Möglichkeiten, den Fließverbesserer vor der Füllung des leeren Tanks zuzusetzen oder den DK im Kraftstofftank auf 8 0C zu erwärmen. In den geschilderten Fällen ist eine genaue Dosierung des Fließverbesserers im Hinblick auf die zu erwartende Temperatur des DK während der Fahrt sehr schwierig und kostspielig. Beim Zusatz von Benzin oder Petroleum werden nur selten Mischungen erreicht, die sowohl die Fließfähigkeit des DK erhalten als auch unschedlich für den Motor sind.These newer flow improvers, by means of which the growth behavior the n-paraffin crystals are modified and the formation of large-area crystals is prevented must be added at temperatures above the cloud point. Offer it Thereby only the possibilities to use the flow improver before filling the empty one Adding tanks or heating the DK in the fuel tank to 8 ° C. In the described Cases is an exact dosage of the flow improver with a view to the expected Temperature of the DK while driving is very difficult and expensive. With the addition of gasoline or kerosene, mixtures are seldom achieved that contain both the The flowability of the DK is preserved and harmless to the engine.
Trotz der geschilderten Maßnahmen bleiben häufig Fahrzeuge mit Dieselmotoren infolge Verstopfung der Kraftstoffleitungen bzw der -filter liegen.Despite the measures outlined, vehicles with diesel engines often remain due to clogging of the fuel lines or the fuel filter.
Der Erfindung liegt die Aufgabe zugrunde, ohne Vermischung des DK mit anderen Stoffen die Fließfähigkeit des DK auch bei Außentemperaturen und damit Kraftstofftemperaturen unter -150C zu erhalten, indem der DK im Tank aufgewärmt wird.The invention is based on the object without mixing the DK with other substances the flowability of the DK even at outside temperatures and thus Maintain fuel temperatures below -150C by warming the DK in the tank will.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Abwärme des Motors genutzt wird, um über eine Heizschlange den DK im Kraftstofftank zu erwärmen. Die Erwärmung des DK im Tank bietet die Vorteile, daß die n-Paraffine nicht mehr kristallisieren können und daß bei der höheren Temperatur des DK eine optimale Ausnutzung des DK im Motor erreicht wird.According to the invention, this object is achieved in that the waste heat of the engine is used to heat the DK in the fuel tank via a heating coil. The heating of the DK in the tank has the advantage that the n-paraffins no longer exist can crystallize and that an optimal utilization at the higher temperature of the DK of the DK in the motor is reached.
Bedingt durch zwei verschiedene Kühlsysteme von Dieselmotoren wurden folgende Ausführungsbeispiele der Erfindung entwickelt: 1) Bei Dieselmotoren mit Wasserkühlung: Die Abwärme des Motors wird vom Kühlwasser aufgenommen und über den Kühler an die Aussenluft abgegeben. Das Kühlwasser als Träger von Wärmeenergie wurde bisher nur genutzt, um über Thermostat, Absperrventil und einen Wärmetauscher (Heizungskühler) die Zuluft für Fahrerhaus bzw Fahrgastzelle zu erwärmen.Due to two different cooling systems of diesel engines were the following embodiments of the invention developed: 1) In diesel engines with Water cooling: The waste heat from the engine is absorbed by the cooling water and via the Cooler released to the outside air. The cooling water was used as a carrier of thermal energy previously only used to control a thermostat, shut-off valve and a heat exchanger (heating radiator) to heat the supply air for the driver's cab or passenger compartment.
Wie Fig. 1 zeigt, wird bei meiner Erfindung die Wärmeenergie des Kühlwassers auch zur Beheizung des DK im Kraftstofftank genutzt. Dabei wird in den Schlauch für das Heizungswasser nach dem Absperrventil ein T - Rohr eingefügt, wobei der Querschnitt des Ausgangs für die Fahrerhausheizung reduziert wird. Durch den zweiten Ausgang gelangt heißes Wasser über isolierte Rohre in eine kupferne Heizschlange. Diese Heizschlange ist in der Weise im Tank installiert, daß ihre Windungen das Saugrohr am Boden des Tanks umgeben. Das Wasser gibt seine Wärme an den DK vor dem Ansaugrohr und im Kraftstofftank ab, wobei besonders der DK innerhalb der 10 Windungen der Heizschlange mit einem Durchmesser von 12 cm erwärmt wird. Das abgekühlte Wasser gelangt über ein weiteres T - Stück im Rücklauf des Heizunswassers der Fahrerhausheizung wieder in den Kühlkreislauf.As shown in Fig. 1, in my invention, the heat energy of the cooling water also used to heat the DK in the fuel tank. This is done in the hose for the heating water after the shut-off valve a T-pipe is inserted, whereby the Cross-section of the output for the cab heater is reduced. By the second At the outlet, hot water reaches a copper heating coil via insulated pipes. This heating coil is installed in the tank in such a way that its coils allow the Suction pipe surrounded at the bottom of the tank. The water gives its warmth to the DK before Intake pipe and in the fuel tank, especially the DK within the 10 turns the heating coil with a diameter of 12 cm is heated. The cooled water reaches the cab heating via another T-piece in the return of the heating water back into the cooling circuit.
2) Bei Dieselmotoren mit Luftkühlung: Fig. 2 zeigt, daß auch hier der Anschluß am Heizungssystem des Fahrerhauses in der Weise vorzunehmen ist, wie bei Motoren mit Wasserkühlung geschildert wurde. Hierbei wird jedoch das heiße Motorenöl durch die Heizschlange gepumpt und gibt die Wärme an den DK im Fahrzeugtank ab.2) In diesel engines with air cooling: Fig. 2 shows that here too the connection to the heating system of the driver's cab is to be made in the same way as was described for motors with water cooling. Here, however, the hot engine oil pumped through the heating coil and transfers the heat to the DK in the vehicle tank.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803008407 DE3008407A1 (en) | 1980-03-05 | 1980-03-05 | Fuel heater for Diesel vehicle - has engine coolant feeding heating coil in fuel tank to prevent crystallisation and filter blockage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803008407 DE3008407A1 (en) | 1980-03-05 | 1980-03-05 | Fuel heater for Diesel vehicle - has engine coolant feeding heating coil in fuel tank to prevent crystallisation and filter blockage |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3008407A1 true DE3008407A1 (en) | 1981-09-10 |
Family
ID=6096327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19803008407 Ceased DE3008407A1 (en) | 1980-03-05 | 1980-03-05 | Fuel heater for Diesel vehicle - has engine coolant feeding heating coil in fuel tank to prevent crystallisation and filter blockage |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3008407A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3049281A1 (en) * | 1980-12-29 | 1982-07-22 | Asam & Söhne, 8891 Unterwittelsbach | DEVICE FOR IMPROVING THE FLOW RESISTANCE OF COLD DIESEL FUEL |
DE3117374A1 (en) * | 1981-05-02 | 1982-12-02 | Ernst 5014 Türnich Banik | Diesel engine fuel |
DE3508405A1 (en) * | 1984-03-13 | 1985-10-03 | Günter Elsbett | Internal combustion engine with reduced noise and heat emission |
DE3511781A1 (en) * | 1985-03-30 | 1986-10-09 | M A N Nutzfahrzeuge GmbH, 8000 München | Device for the heating of fuel in a fuel system of a water-cooled motor vehicle internal combustion engine |
FR2751276A1 (en) * | 1996-07-19 | 1998-01-23 | Mc Micro Compact Car Ag | FUEL SUPPLY SYSTEM COMPRISING A FUEL TANK |
WO2009003611A1 (en) * | 2007-06-29 | 2009-01-08 | Daimler Ag | Combustion engine |
EP2639094A1 (en) * | 2012-02-28 | 2013-09-18 | Peter Feldgebel | Device for pressure regulation for a liquefied gas tank |
DE10256727B4 (en) * | 2002-12-05 | 2017-02-16 | Magna Steyr Fuel Systems Gmbh Werk Schwäbisch Gmünd | Container for holding consumables |
DE102017005591A1 (en) | 2017-06-13 | 2018-12-13 | Daimler Ag | Tank device for an internal combustion engine of a motor vehicle |
CN111350620A (en) * | 2020-03-17 | 2020-06-30 | 谢星 | Diesel oil tank temperature control device utilizing principle of expansion with heat and contraction with cold |
-
1980
- 1980-03-05 DE DE19803008407 patent/DE3008407A1/en not_active Ceased
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3049281A1 (en) * | 1980-12-29 | 1982-07-22 | Asam & Söhne, 8891 Unterwittelsbach | DEVICE FOR IMPROVING THE FLOW RESISTANCE OF COLD DIESEL FUEL |
DE3117374A1 (en) * | 1981-05-02 | 1982-12-02 | Ernst 5014 Türnich Banik | Diesel engine fuel |
DE3508405A1 (en) * | 1984-03-13 | 1985-10-03 | Günter Elsbett | Internal combustion engine with reduced noise and heat emission |
DE3511781A1 (en) * | 1985-03-30 | 1986-10-09 | M A N Nutzfahrzeuge GmbH, 8000 München | Device for the heating of fuel in a fuel system of a water-cooled motor vehicle internal combustion engine |
FR2751276A1 (en) * | 1996-07-19 | 1998-01-23 | Mc Micro Compact Car Ag | FUEL SUPPLY SYSTEM COMPRISING A FUEL TANK |
DE10256727B4 (en) * | 2002-12-05 | 2017-02-16 | Magna Steyr Fuel Systems Gmbh Werk Schwäbisch Gmünd | Container for holding consumables |
WO2009003611A1 (en) * | 2007-06-29 | 2009-01-08 | Daimler Ag | Combustion engine |
EP2639094A1 (en) * | 2012-02-28 | 2013-09-18 | Peter Feldgebel | Device for pressure regulation for a liquefied gas tank |
DE102017005591A1 (en) | 2017-06-13 | 2018-12-13 | Daimler Ag | Tank device for an internal combustion engine of a motor vehicle |
CN111350620A (en) * | 2020-03-17 | 2020-06-30 | 谢星 | Diesel oil tank temperature control device utilizing principle of expansion with heat and contraction with cold |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |