DE19547245A1 - Fuel tank for compressed gaseous fuel, e.g. compressed natural gas - Google Patents

Fuel tank for compressed gaseous fuel, e.g. compressed natural gas

Info

Publication number
DE19547245A1
DE19547245A1 DE1995147245 DE19547245A DE19547245A1 DE 19547245 A1 DE19547245 A1 DE 19547245A1 DE 1995147245 DE1995147245 DE 1995147245 DE 19547245 A DE19547245 A DE 19547245A DE 19547245 A1 DE19547245 A1 DE 19547245A1
Authority
DE
Germany
Prior art keywords
fuel
fuel tank
tank
line
compressed
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Withdrawn
Application number
DE1995147245
Other languages
German (de)
Inventor
Patrick Mueller
Oliver Dingel
Franz Maier
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE1995147245 priority Critical patent/DE19547245A1/en
Publication of DE19547245A1 publication Critical patent/DE19547245A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B60K15/03006—Gas tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0617—Single wall with one layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
    • F17C2223/042—Localisation of the removal point
    • F17C2223/046—Localisation of the removal point in the liquid
    • F17C2223/047—Localisation of the removal point in the liquid with a dip tube

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The fuel tank (1) has a pressure-proof tank wall, a device filling the tank with fuel (2) and a device for discharging the fuel out of the tank. The discharging device has at least one line (6) rising in the fuel tank and having an open end (10) arranged at an area (11) at the lowest position of the fuel tank. Liquid and residual dirt accumulate in that area. The line has a funnel section (9) formed at the narrowest place of the open end. Above the end (10), two line sections divert from the funnel section, which respectively lead to a combustion device outside the fuel tank. A mechanism is provided for the removal of fuel out of the fuel tank, in the event that the pressure exceeds a limiting pressure.

Description

Die Erfindung betrifft einen Kraftstoffbehälter für einen komprimierten, gasförmigen Kraftstoff gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a fuel tank for a compressed, gaseous Fuel according to the preamble of claim 1.

Es sind bereits Kraftstoffbehälter bekannt, die mit einem unter Druck stehenden gasförmigen Kraftstoff gefüllt sind. Der Druck im Behälter liegt bei bis zu 200 bar für Gase, die unter Umgebungstemperatur im Kraftstoffbehälter enthalten sind. Zu diesen Gasen zählt komprimiertes Erdgas, das auch compressed natural gas, ab­ gekürzt CNG, genannt wird.There are already known fuel tanks with a pressurized gaseous fuel are filled. The pressure in the tank is up to 200 bar for gases contained in the fuel tank at ambient temperature. To Compressed natural gas, also called compressed natural gas, counts from these gases abbreviated CNG.

Bei bekannten CNG-Kraftstoffbehältern ist die Entnahmeöffnung für das Gas an der Seite ausgebildet. In den tieferliegenden Bereichen des Kraftstoffbehälters können sich die im Gas enthaltenen Schmutzanteile und Flüssigkeitsreste, wie z. B. Wasser, ansammeln. Durch die Schmutz- und Wasseransammlung wird das Volumen des Kraftstoffbehälters mit der Zeit kleiner. Die Korrosion des Kraftstoff­ behälters wird beschleunigt, da im Erdgas z. B. Schwefelkomponenten enthalten sind, die in Verbindung mit Wasser schwefelige Säuren bilden.In known CNG fuel tanks, the gas removal opening is on the side trained. In the lower areas of the fuel tank the dirt and liquid residues contained in the gas, e.g. B. Water, accumulate. Due to the accumulation of dirt and water Volume of the fuel tank smaller over time. Corrosion of the fuel container is accelerated because in natural gas z. B. contain sulfur components are, which form sulfuric acids in connection with water.

Aufgabe der Erfindung ist es, einen Kraftstoffbehälter zu schaffen, bei dem eine Ansammlung von Schmutz- und Flüssigkeitsresten verhindert ist.The object of the invention is to provide a fuel tank in which one Accumulation of dirt and liquid residues is prevented.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. This object is achieved by the features of claim 1.  

Erfindungsgemäß wird eine Leitung in den Bereich des Kraftstoffbehälters geführt, in dem es zu Ansammlungen von Schmutz- und Flüssigkeitsresten kommt. Von Vorteil ist, daß die Verunreinigungen mit dem Kraftstoff angesaugt, einer Verbren­ nungseinrichtung zugeführt und dort verbrannt werden.According to the invention, a line is led into the area of the fuel tank, in which dirt and liquid residues accumulate. From The advantage is that the contaminants sucked in with the fuel, a burn be supplied and burned there.

Diese Verbrennungsanlage ist in erster Linie z. B. ein Verbrennungsmotor eines Kraftfahrzeuges. Im Betrieb des Verbrennungsmotors wird somit an der kritischen Stelle des Kraftstoffbehälters das die Verunreinigungen enthaltene Gas abgesaugt. Bei längeren Fahrzeugstandzeiten, d. h. bei nichtlaufendem Verbrennungsmotor, kann es durch Wärmeeinfall in den Kraftstoffbehälter zu einem Druckanstieg kom­ men. Für diesen Fall ist ab der Überschreitung eines Grenzdruckes eine Einrich­ tung zum Abführen des Kraftstoffes am Behälter vorgesehen, die den Kraftstoff zu einer weiteren Verbrennungseinrichtung, beispielsweise einer Fahrzeugstand­ heizung abzweigt.This incinerator is primarily z. B. an internal combustion engine Motor vehicle. The operation of the internal combustion engine is therefore critical The gas contained in the contaminants is sucked out of the fuel tank. With longer vehicle downtimes, i.e. H. with the internal combustion engine not running, the heat in the fuel tank can lead to an increase in pressure men. In this case, a set-up is required when a limit pressure is exceeded device for discharging the fuel provided on the container, which the fuel to a further combustion device, for example a vehicle stand heating branches.

Eine Ausführungsform der Erfindung wird nachstehend anhand der Zeichnungen beispielshalber beschrieben. Dabei zeigen:An embodiment of the invention will now be described with reference to the drawings described as an example. Show:

Fig. 1 einen Längsschnitt einer Prinzipdarstellung eines Kraftstoffbehälters und Fig. 1 shows a longitudinal section of a schematic diagram of a fuel tank and

Fig. 2 eine Detailansicht der Fig. 1, die die Absaugstelle im Kraftstoffbehälter im vergrößerten Maßstab zeigt. Fig. 2 is a detailed view of Fig. 1, showing the suction point in the fuel tank on an enlarged scale.

Die Fig. 1 zeigt einen Kraftstoffbehälter 1, der mit einem komprimierten, gasför­ migen Kraftstoff 2, beispielsweise CNG, gefüllt ist. Der Druck im Kraftstoffbehälter 1 beträgt p₁ = 200 bar. Der Kraftstoffbehälter 1 weist eine Außenwand 3 auf, die gegenüber dem im Kraftstoffbehälter 1 vorherrschenden Druck p₁ ausreichend di­ mensioniert ist. In dem Kraftstoffbehälter 1 sind zwei Durchtrittsöffnungen 4 und 5 ausgebildet, durch die gasdicht jeweils entsprechende Abschnitte 7 und 8 einer Leitung 6 hindurchgeführt sind. Die Leitung 6 weist einen trichterförmigen Abschnitt 9 auf, dessen unteres offenes Ende 10 in einen Bereich 11 des Kraftstoffbehälters 1 hineinragt, in dem es vermehrt zu Ansammlungen von Flüssigkeits- und Schmutzresten 12 kommt. Fig. 1 shows a fuel tank 1 , which is filled with a compressed, gas-shaped fuel 2 , for example CNG. The pressure in the fuel tank 1 is p₁ = 200 bar. The fuel tank 1 has an outer wall 3 , which is sufficiently di dimensioned relative to the prevailing pressure p 1 in the fuel tank 1 . In the fuel tank 1 , two through openings 4 and 5 are formed, through which corresponding sections 7 and 8 of a line 6 are passed gas-tight. The line 6 has a funnel-shaped section 9 , the lower open end 10 of which protrudes into an area 11 of the fuel tank 1 , in which there is an increased accumulation of liquid and dirt residues 12 .

Über den Abschnitt 7 der Leitung 6 wird gasförmiger Kraftstoff 2 zu einem nicht dargestellten Verbrennungsmotor und über den Abschnitt 8 zu einer weiteren, nicht dargestellten Verbrennungseinrichtung abgeführt und dort verbrannt. In dem Ab­ schnitt 8 der Leitung 6 ist eine nicht dargestellte Einrichtung vorgesehen, die bei einem Grenzdruck p₀ den Abschnitt 8 der Leitung 6 öffnet, so daß Gas zu der wei­ teren Verbrennungseinrichtung abfließen kann.Via section 7 of line 6 , gaseous fuel 2 is discharged to an internal combustion engine, not shown, and via section 8 to a further combustion device, not shown, and burned there. From section 8 of line 6 , a device, not shown, is provided which opens section 8 of line 6 at a limit pressure p₀, so that gas can flow out to the further combustion device.

Die Fig. 2 zeigt in einer vergrößerten Darstellung den kritischen Bereich 11 des Kraftstoffbehälters 1, in dem sich die Flüssigkeits- und Schmutzreste 12 ansam­ meln. Das offene Ende 10 des trichterförmigen Abschnittes 9 der Leitung 6 ist so nahe wie möglich an der Innenwand 13 des Kraftstoffbehälters 1 angeordnet. Über einen Pfeil 14 ist die Strömungsrichtung des Gemisches aus gasförmigem Kraft­ stoff 2 und Flüssigkeits- und Schmutzresten 12 angedeutet. Fig. 2 shows an enlarged view of the critical area 11 of the fuel tank 1 , in which the liquid and dirt residues 12 collect. The open end 10 of the funnel-shaped section 9 of the line 6 is arranged as close as possible to the inner wall 13 of the fuel tank 1 . An arrow 14 indicates the direction of flow of the mixture of gaseous fuel 2 and liquid and dirt residues 12 .

Claims (4)

1. Kraftstoffbehälter für komprimierten, gasförmigen Kraftstoff, mit einer druck­ festen Behälterwand, mit einer Einrichtung zum Befüllen des Kraftstoffbehäl­ ters mit Kraftstoff, mit einer Einrichtung zum Entnehmen des Kraftstoffs aus dem Behälter zu einer Verbrennungseinrichtung, dadurch gekennzeichnet, daß die Einrichtung zum Entnehmen von Kraftstoff (2) aus dem Kraftstoffbe­ hälter (1) mindestens eine Leitung (6) aufweist, deren in den Kraftstoffbehäl­ ter (1) ragendes, offenes Ende (10) in dem Bereich (11) des Kraftstoffbehäl­ ters (1) angeordnet ist, an der sich Flüssigkeits- und Schmutzreste (12) an­ sammeln.1. Fuel tank for compressed, gaseous fuel, with a pressure-tight tank wall, with a device for filling the fuel tank with fuel, with a device for removing the fuel from the tank to a combustion device, characterized in that the device for removing fuel (2) container of the Kraftstoffbe (1) has at least one line (6), whose ter in the Kraftstoffbehäl is disposed (1) projecting, open end (10) in the region (11) of the Kraftstoffbehäl ters (1), at the liquid and dirt residues ( 12 ) collect. 2. Kraftstoffbehälter nach Anspruch 1, dadurch gekennzeichnet, daß das offene Ende (10) der Leitung (6) an der tiefsten Stelle (11) des Kraftstoffbehälters (1) angeordnet ist.2. Fuel tank according to claim 1, characterized in that the open end ( 10 ) of the line ( 6 ) is arranged at the lowest point ( 11 ) of the fuel tank ( 1 ). 3. Kraftstoffbehälter nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, daß die Leitung (6) einen trichterförmigen Abschnitt (9) aufweist, an dessen engster Stelle das offene Ende (10) ausgebildet ist und daß oberhalb des Endes (10) zwei Leitungsabschnitte (7, 8) von dem trichterförmigen Abschnitt (9) abzweigen, die jeweils zu einer Verbrennungseinrichtung außerhalb des Kraftstoffbehälters (1) führen. 3. Fuel tank according to claims 1 or 2, characterized in that the line ( 6 ) has a funnel-shaped section ( 9 ), at the narrowest point of which the open end ( 10 ) is formed and that above the end ( 10 ) two line sections ( 7 , 8 ) branch off from the funnel-shaped section ( 9 ), each leading to a combustion device outside the fuel tank ( 1 ). 4. Kraftstoffbehälter nach einem der vorgenannten Ansprüche, dadurch ge­ kennzeichnet, daß eine Einrichtung zum Abführen von Kraftstoff aus dem Kraftstoffbehälter bei einer Überschreitung eines Grenzdruckes im Kraftstoff­ behälter vorgesehen ist.4. Fuel tank according to one of the preceding claims, characterized ge indicates that a device for discharging fuel from the Fuel tank when a limit pressure in the fuel is exceeded container is provided.
DE1995147245 1995-12-18 1995-12-18 Fuel tank for compressed gaseous fuel, e.g. compressed natural gas Withdrawn DE19547245A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1995147245 DE19547245A1 (en) 1995-12-18 1995-12-18 Fuel tank for compressed gaseous fuel, e.g. compressed natural gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1995147245 DE19547245A1 (en) 1995-12-18 1995-12-18 Fuel tank for compressed gaseous fuel, e.g. compressed natural gas

Publications (1)

Publication Number Publication Date
DE19547245A1 true DE19547245A1 (en) 1997-06-19

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Family Applications (1)

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DE1995147245 Withdrawn DE19547245A1 (en) 1995-12-18 1995-12-18 Fuel tank for compressed gaseous fuel, e.g. compressed natural gas

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Country Link
DE (1) DE19547245A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001059308A1 (en) * 2000-02-11 2001-08-16 Hydac Technology Gmbh Device for removing fluid from a container

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293356A (en) * 1940-01-25 1942-08-18 James A Parker Gas storage and dispensing apparatus
US2386554A (en) * 1943-06-29 1945-10-09 John R Holicer Method and apparatus for storing, atomizing, and generating liquefied petroleum gases
US2855759A (en) * 1954-03-29 1958-10-14 Bastian Blessing Co Gas dispensing system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293356A (en) * 1940-01-25 1942-08-18 James A Parker Gas storage and dispensing apparatus
US2386554A (en) * 1943-06-29 1945-10-09 John R Holicer Method and apparatus for storing, atomizing, and generating liquefied petroleum gases
US2855759A (en) * 1954-03-29 1958-10-14 Bastian Blessing Co Gas dispensing system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001059308A1 (en) * 2000-02-11 2001-08-16 Hydac Technology Gmbh Device for removing fluid from a container
US6681813B2 (en) 2000-02-11 2004-01-27 Hydac Technology Gmbh Device for removing fluid from a container

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