EP0447664A1 - Fuel supply system for a diesel engine - Google Patents

Fuel supply system for a diesel engine Download PDF

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Publication number
EP0447664A1
EP0447664A1 EP90125069A EP90125069A EP0447664A1 EP 0447664 A1 EP0447664 A1 EP 0447664A1 EP 90125069 A EP90125069 A EP 90125069A EP 90125069 A EP90125069 A EP 90125069A EP 0447664 A1 EP0447664 A1 EP 0447664A1
Authority
EP
European Patent Office
Prior art keywords
fuel
supply system
fuel tank
line
air
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
Application number
EP90125069A
Other languages
German (de)
French (fr)
Inventor
Ulrich Bihl
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
Mercedes Benz 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 Daimler Benz AG, Mercedes Benz AG filed Critical Daimler Benz AG
Publication of EP0447664A1 publication Critical patent/EP0447664A1/en
Ceased legal-status Critical Current

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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
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0023—Valves in the fuel supply and return system
    • 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
    • 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
    • F02M37/20—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 characterised by means for preventing vapour lock
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Definitions

  • the invention relates to a fuel supply system for a diesel internal combustion engine according to the features specified in the preamble of claim 1.
  • a fuel supply system is known from DE 29 52 016 A1, in which air carried along in the supply line is returned to the fuel tank via a fuel filter. Furthermore, measures are taken here in the return line leading from the fuel filter to the fuel tank which prevent displaced air from reaching the filter and the supply line when refueling an empty fuel tank and ultimately lead to malfunctions of the internal combustion engine.
  • a fuel supply system with a fuel metering device which is designed as a carburetor and is connected via a discharge channel to a storage chamber, which is also a float chamber and a float with opposing valves has one of which closes a line opening into the supply line in the case of air intake.
  • the invention has for its object to provide simple measures on this generic fuel supply system, which ensures that on the one hand no air is sucked in by the fuel feed pump and that on the other hand when filling a fuel-free container an almost immediate start of the internal combustion engine is possible.
  • the measures according to the invention ensure that after filling up an empty fuel tank there are no problems with restarting the internal combustion engine. In addition, air is prevented from entering the supply line with only a small fuel supply in the fuel tank, which leads to malfunctions.
  • a fuel supply system with a float valve which is connected to a line leading to the intake manifold of a mixture-compressing internal combustion engine (FIG. 1).
  • the negative pressure in the intake manifold is used to transport fuel from the fuel tank via a connecting line into a storage tank, in order to be conveyed from there to the carburetor by means of a conventional fuel feed pump.
  • the float valve ensures that no fuel gets into the line leading to the intake manifold.
  • the known embodiment according to FIG. 2 is intended for a diesel internal combustion engine.
  • the float valve operates in a similar manner to that of the aforementioned embodiment according to FIG. 1, the negative pressure being used to transport the fuel through a negative pressure container of a conventional internal combustion engine.
  • a fuel supply system 1 for an air-compressing injection internal combustion engine 2 essentially consists of a fuel tank 3 with a swirl pot 4, from which a supply line 5 extends and leads to a fuel injection pump 6 designed as a series injection pump.
  • a fuel feed pump 7 and a fuel filter 8 are arranged in the supply line 5, as seen in the flow direction.
  • a device 9 is interposed, which automatically blocks the line section when air is drawn in from the fuel tank 3.
  • the device 9 has a float chamber 10 which contains a pivotably mounted float 11. 2, the pivot bearing 12 is located on a side wall 9a of the device 9.
  • a check valve 13 is articulated on the float 11 and, when air is drawn in, closes the funnel-shaped opening 5a ′ of the line section 5a in the float chamber 10 near the floor.
  • the check valve 13 has a conical seat surface 13a which is adapted to the funnel shape of the line section 5a.
  • the inlet-side fuel inlet 5a "of the line section 5a opens into the float chamber 10 above the float 11.
  • a line 14 for the air discharge leads away from the area of the float chamber 10 on the cover side and is connected to the fuel tank 3.
  • 15 denotes a return line, on the one hand the fuel injection pump 6 and on the other hand is connected to the fuel tank 3.
  • the fuel supply system 1 acts in the same way even when using a fuel injection pump 6 designed as a distributor pump, in which the fuel delivery pump 7 is not arranged between the device 9 and the fuel filter 8, but is integrated in the distributor pump.

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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)

Abstract

The invention relates to a fuel supply system (1) for a diesel engine (2) in which a device (9) which automatically blocks a supply line leading from a fuel tank (3) to a fuel injection pump (6) if air is sucked in is arranged in the supply line (9), upstream of the fuel feed pump (7) and the fuel filter (8). <IMAGE>

Description

Die Erfindung betrifft eine Kraftstoffversorgungsanlage für eine Diesel-Brennkraftmaschine nach den im Oberbegriff des Patentanspruchs 1 angegebenen Merkmalen.The invention relates to a fuel supply system for a diesel internal combustion engine according to the features specified in the preamble of claim 1.

Aus der DE 29 52 016 A1 ist eine Kraftstoffversorgungsanlage bekannt, bei der in der Versorgungsleitung mitgeförderte Luft über ein Kraftstoffilter in den Kraftstoffbehälter zurückgeführt wird. Ferner sind hier in der vom Kraftstoffilter zum Kraftstoffbehälter führenden Rücklaufleitung Maßnahmen getroffen, die beim Auftanken eines leeren Kraftstoffbehälters verhindern, daß verdrängte Luft über die Rücklaufleitung in den Filter und in die Versorgungsleitung gelangt und schließlich zu Betriebsstörungen der Brennkraftmaschine führt.A fuel supply system is known from DE 29 52 016 A1, in which air carried along in the supply line is returned to the fuel tank via a fuel filter. Furthermore, measures are taken here in the return line leading from the fuel filter to the fuel tank which prevent displaced air from reaching the filter and the supply line when refueling an empty fuel tank and ultimately lead to malfunctions of the internal combustion engine.

Ist jedoch bei dieser Ausführung während des Betriebes der Brennkraftmaschine der Kraftstoffbehälter weitgehend leergefahren, besteht die Gefahr, daß bei Kurvenfahrten oder Bergfahrten Luft in die Saugseite bis zur Brennkraftmaschine gelangen kann und zu Betriebsstörungen führt. Beim Wiederstart treten erhebliche Probleme auf.However, if the fuel tank is largely empty during operation of the internal combustion engine in this embodiment, there is a risk that when cornering or driving uphill, air can get into the suction side as far as the internal combustion engine and lead to malfunctions. There are significant problems when restarting.

Ferner ist aus der DE 29 52 133 A1 eine Kraftstoffversorgungsanlage mit einer Kraftstoffzumeßeinrichtung bekannt, die als Vergaser ausgebildet über einen Abzugskanal mit einer Speicherkammer verbunden ist, die zugleich Schwimmerkammer ist und einen Schwimmer mit einander gegenüberliegenden Ventilen aufweist, von denen eines bei Luftansaugung eine in die Versorgungsleitung mündende Leitung verschließt.Furthermore, from DE 29 52 133 A1 a fuel supply system with a fuel metering device is known, which is designed as a carburetor and is connected via a discharge channel to a storage chamber, which is also a float chamber and a float with opposing valves has one of which closes a line opening into the supply line in the case of air intake.

Der Erfindung liegt die Aufgabe zugrunde, einfache Maßnahmen an dieser gattungsgemäßen Kraftstoffversorgungsanlage vorzusehen, durch die sichergestellt ist, daß einerseits keine Luft von der Kraftstofförderpumpe angesaugt wird und daß andererseits beim Auffüllen eines kraftstoffleeren Behälters ein nahezu sofortiges Starten der Brennkraftmaschine möglich ist.The invention has for its object to provide simple measures on this generic fuel supply system, which ensures that on the one hand no air is sucked in by the fuel feed pump and that on the other hand when filling a fuel-free container an almost immediate start of the internal combustion engine is possible.

Zur Lösung der Aufgabe dienen die im Kennzeichen des Anspruchs 1 angegebenen Merkmale.The features specified in the characterizing part of claim 1 serve to achieve the object.

Durch die erfindungsgemäßen Maßnahmen ist sichergestellt, daß nach dem Auffüllen eines leergefahrenen Kraftstoffbehälters keinerlei Probleme hinsichtlich des Wiederstarts der Brennkraftmaschine auftreten. Darüber hinaus wird auch verhindert, daß bei nur geringem Kraftstoffvorrat im Kraftstoffbehälter Luft in die Versorgungsleitung gelangt, die zu Betriebsstörungen führt.The measures according to the invention ensure that after filling up an empty fuel tank there are no problems with restarting the internal combustion engine. In addition, air is prevented from entering the supply line with only a small fuel supply in the fuel tank, which leads to malfunctions.

Im Unteranspruch 2 ist eine vorteilhafte Ausgestaltung der Erfindung beansprucht.An advantageous embodiment of the invention is claimed in subclaim 2.

Aus der DE 27 24 840 A1 ist noch eine Kraftstoffversorgungsanlage mit einem Schwimmerventil bekannt, das mit einer zum Saugrohr einer gemischverdichtenden Brennkraftmaschine (Fig.1) führenden Leitung verbunden ist. Hier wird der Unterdruck im Saugrohr ausgenutzt, um Kraftstoff aus dem Kraftstoffbehälter über eine Verbindungsleitung in einen Vorratsbehälter zu transportieren, um von dort aus mittels einer üblichen Kraftstofförderpumpe zum Vergaser gefördert zu werden. Das Schwimmerventil dient jedoch dazu, daß kein Kraftstoff in die zum Saugrohr führende Leitung gelangt.From DE 27 24 840 A1 a fuel supply system with a float valve is known which is connected to a line leading to the intake manifold of a mixture-compressing internal combustion engine (FIG. 1). Here, the negative pressure in the intake manifold is used to transport fuel from the fuel tank via a connecting line into a storage tank, in order to be conveyed from there to the carburetor by means of a conventional fuel feed pump. However, the float valve ensures that no fuel gets into the line leading to the intake manifold.

Die bekannte Ausführung gemäß Fig. 2 ist für eine Diesel-Brennkraftmaschine bestimmt. Auch hier arbeitet das Schwimmerventil in ähnlicher Weise wie bei dem vorerwähnten Ausführungsbeispiel gemäß Fig. 1, wobei hier der Unterdruck zum Transport des Kraftstoffes durch einen Unterdruckbehälter eines üblichen Brennkraftverstärkers ausgenutzt wird.The known embodiment according to FIG. 2 is intended for a diesel internal combustion engine. Here, too, the float valve operates in a similar manner to that of the aforementioned embodiment according to FIG. 1, the negative pressure being used to transport the fuel through a negative pressure container of a conventional internal combustion engine.

In den weiteren Unteransprüchen sind noch förderliche Weiterbildungen der Erfindung angegeben.In the further subclaims, further developments of the invention are given.

In den weiteren Unteransprüchen sind noch förderliche Weiterbildungen der Erfindung angegeben.In the further subclaims, further developments of the invention are given.

Im folgenden wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung näher erläutert. Es zeigt:

Fig. 1
eine Kraftstoffversorgungsanlage in schematischer Darstellung,
Fig. 2
die Schwimmerkammer in vergrößertem Maßstab.
An exemplary embodiment of the invention is explained in more detail below with reference to the drawing. It shows:
Fig. 1
a fuel supply system in a schematic representation,
Fig. 2
the float chamber on an enlarged scale.

Eine Kraftstoffversorgungsanlage 1 für eine luftverdichtende Einspritzbrennkraftmaschine 2 besteht im wesentlichen aus einem Kraftstoffbehälter 3 mit Schlingertopf 4, von dem eine Versorgungsleitung 5 ausgeht und zu einer als Reiheneinspritzpumpe ausgebildeten Kraftstoffeinspritzpumpe 6 führt. In der Versorgungsleitung 5 sind - in Strömungsrichtung gesehen - eine Kraftstofförderpumpe 7 und ein Kraftstoffilter 8 angeordnet. In dem zwischen Kraftstoffbehälter 3 und Kraftstofförderpumpe 7 liegenden Leitungsabschnitt 5a der Versorgungsleitung ist eine Vorrichtung 9 zwischengeschaltet, die bei Luftansaugung aus dem Kraftstoffbehälter 3 den Leitungsabschnitt selbsttätig sperrt.A fuel supply system 1 for an air-compressing injection internal combustion engine 2 essentially consists of a fuel tank 3 with a swirl pot 4, from which a supply line 5 extends and leads to a fuel injection pump 6 designed as a series injection pump. A fuel feed pump 7 and a fuel filter 8 are arranged in the supply line 5, as seen in the flow direction. In the line section 5a of the supply line lying between the fuel tank 3 and the fuel delivery pump 7, a device 9 is interposed, which automatically blocks the line section when air is drawn in from the fuel tank 3.

Die Vorrichtung 9 weist eine Schwimmerkammer 10 auf, die einen schwenkbar gelagerten Schwimmer 11 enthält. Das Schwenklager 12 befindet sich gemäß Fig. 2 an einer Seitenwand 9a der Vorrichtung 9. An dem Schwimmer 11 ist ein Sperrventil 13 angelenkt, welches bei Luftansaugung die in der Schwimmerkammer 10 in Bodennähe liegende auslaßseitige trichterförmige Öffnung 5a' des Leitungsabschnitts 5a verschließt. Das Sperrventil 13 weist eine kegelförmige Sitzfläche 13a auf, die der Trichterform des Leitungsabschnittes 5a angepaßt ist.The device 9 has a float chamber 10 which contains a pivotably mounted float 11. 2, the pivot bearing 12 is located on a side wall 9a of the device 9. A check valve 13 is articulated on the float 11 and, when air is drawn in, closes the funnel-shaped opening 5a ′ of the line section 5a in the float chamber 10 near the floor. The check valve 13 has a conical seat surface 13a which is adapted to the funnel shape of the line section 5a.

Der einlaßseitige Kraftstoffzulauf 5a" des Leitungsabschnitts 5a mündet in die Schwimmerkammer 10 oberhalb des Schwimmers 11. Vom deckelseitigen Bereich der Schwimmerkammer 10 führt eine Leitung 14 für die Luftabführung weg, die am Kraftstoffbehälter 3 angeschlossen ist. Mit 15 ist eine Rücklaufleitung bezeichnet, die einerseits an der Kraftstoffeinspritzpumpe 6 und andererseits an dem Kraftstoffbehälter 3 angeschlossen ist.The inlet-side fuel inlet 5a "of the line section 5a opens into the float chamber 10 above the float 11. A line 14 for the air discharge leads away from the area of the float chamber 10 on the cover side and is connected to the fuel tank 3. 15 denotes a return line, on the one hand the fuel injection pump 6 and on the other hand is connected to the fuel tank 3.

Die Kraftstoffversorgungsanlage 1 wirkt in gleicher Weise auch bei Anwendung einer als Verteilerpumpe ausgebildeten Kraftstoffeinspritzpumpe 6, bei der die Kraftstofförderpumpe 7 nicht zwischen Vorrichtung 9 und Kraftstoffilter 8 angeordnet ist, sondern in der Verteilerpumpe integriert ist.The fuel supply system 1 acts in the same way even when using a fuel injection pump 6 designed as a distributor pump, in which the fuel delivery pump 7 is not arranged between the device 9 and the fuel filter 8, but is integrated in the distributor pump.

Claims (3)

Kraftstoffversorgungsanlage für eine Diesel-Brennkraftmaschine, mit einer von einem Kraftstoffbehälter ausgehenden und über eine Kraftstofförderpumpe sowie ein Kraftstoffilter zu einer Kraftstoffzumeßeinrichtung führenden Versorgungsleitung, ferner mit einem in einer Schwimmerkammer geführten Schwimmer, der mit einem den Durchtritt von angesaugter Luft verhindernden Sperrventil in Wirkverbindung steht,
dadurch gekennzeichnet,
daß das Sperrventil (13) in einem den Kraftstoffbehälter (3) und die Kraftstofförderpumpe (7) verbindenden Leitungsabschnitt (5a) der Versorgungsleitung (5) zwischengeschaltet ist und diesen Leitungsabschnitt (5a) bei Luftansaugung aus dem Kraftstoffbehälter (3) selbsttätig sperrt.Fuel supply system for a diesel internal combustion engine, with a supply line starting from a fuel tank and leading to a fuel metering device via a fuel feed pump and a fuel filter, furthermore with a float guided in a float chamber, which is in operative connection with a check valve preventing the passage of sucked-in air,
characterized,
that the check valve (13) is interposed in a line section (5a) of the supply line (5) connecting the fuel tank (3) and the fuel feed pump (7) and automatically blocks this line section (5a) when air is drawn in from the fuel tank (3). Kraftstoffversorgungsanlage nach Anspruch 1,
dadurch gekennzeichnet,
daß eine die Schwimmerkammer (10) und den Kraftstoffbehälter (3) verbindende Leitung (14) für die Luftabführung vorgesehen ist.Fuel supply system according to claim 1,
characterized,
that a line (14) connecting the float chamber (10) and the fuel tank (3) is provided for the air discharge. Kraftstoffversorgungsanlage nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Lagerung des Schwimmers (11) durch ein Schwenklager (12) gebildet ist.Fuel supply system according to one of the preceding claims,
characterized,
that the bearing of the float (11) is formed by a pivot bearing (12).
EP90125069A 1990-03-17 1990-12-21 Fuel supply system for a diesel engine Ceased EP0447664A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4008609 1990-03-17
DE19904008609 DE4008609C1 (en) 1990-03-17 1990-03-17

Publications (1)

Publication Number Publication Date
EP0447664A1 true EP0447664A1 (en) 1991-09-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90125069A Ceased EP0447664A1 (en) 1990-03-17 1990-12-21 Fuel supply system for a diesel engine

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EP (1) EP0447664A1 (en)
DE (1) DE4008609C1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5616041A (en) * 1995-01-17 1997-04-01 Heyco Stamped Products, Inc. Female connector for a plastic molded receptacle and an extension cord
CN100379974C (en) * 2000-09-20 2008-04-09 三国株式会社 Fuel feeding device and fuel filter used for the device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19700957A1 (en) * 1997-01-14 1998-07-16 Dolmar Gmbh Venting device for the fuel supply system of an internal combustion engine
DE19946659C2 (en) * 1999-09-29 2002-11-14 Siemens Ag Injection system for an internal combustion engine
DE19956093B4 (en) * 1999-11-22 2005-03-31 Siemens Ag Fuel delivery device for a common rail injection system
JP2010138776A (en) * 2008-12-11 2010-06-24 Mitsubishi Electric Corp Fuel supply apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1433875A (en) * 1972-08-18 1976-04-28 Bishop B L H Liquid supply and measuring systems
FR2331692A1 (en) * 1975-11-13 1977-06-10 Bridgemore Eng Ltd DEVICE FOR PURGING AIR
GB1524957A (en) * 1975-10-31 1978-09-13 Bridgemore Eng Ltd Air bleeding device for unse in apressurised liquid syste
DE2724840A1 (en) * 1977-06-02 1978-12-14 Volkswagenwerk Ag IC engine fuel supply system - has chamber between tank and pump with valved connection to intake manifold to ensure fuel supply at low tank vol.
DE2952016A1 (en) * 1979-12-22 1981-06-25 Daimler-Benz Ag, 7000 Stuttgart Diesel engine fuel filter - has feed and injection pump connections and return flow connection, with non-return valve opening towards tank
US4715345A (en) * 1985-07-18 1987-12-29 Reames Jr Carter Automatic fuel shut off system for fuel-injected engines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2952133C2 (en) * 1979-12-22 1983-02-03 Pierburg Gmbh & Co Kg, 4040 Neuss Arrangement on the float chamber of a carburetor for internal combustion engines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1433875A (en) * 1972-08-18 1976-04-28 Bishop B L H Liquid supply and measuring systems
GB1524957A (en) * 1975-10-31 1978-09-13 Bridgemore Eng Ltd Air bleeding device for unse in apressurised liquid syste
FR2331692A1 (en) * 1975-11-13 1977-06-10 Bridgemore Eng Ltd DEVICE FOR PURGING AIR
DE2724840A1 (en) * 1977-06-02 1978-12-14 Volkswagenwerk Ag IC engine fuel supply system - has chamber between tank and pump with valved connection to intake manifold to ensure fuel supply at low tank vol.
DE2952016A1 (en) * 1979-12-22 1981-06-25 Daimler-Benz Ag, 7000 Stuttgart Diesel engine fuel filter - has feed and injection pump connections and return flow connection, with non-return valve opening towards tank
US4715345A (en) * 1985-07-18 1987-12-29 Reames Jr Carter Automatic fuel shut off system for fuel-injected engines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5616041A (en) * 1995-01-17 1997-04-01 Heyco Stamped Products, Inc. Female connector for a plastic molded receptacle and an extension cord
CN100379974C (en) * 2000-09-20 2008-04-09 三国株式会社 Fuel feeding device and fuel filter used for the device

Also Published As

Publication number Publication date
DE4008609C1 (en) 1991-03-07

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