DE2130174A1 - Electronically controlled gasoline injection system for internal combustion engines - Google Patents

Electronically controlled gasoline injection system for internal combustion engines

Info

Publication number
DE2130174A1
DE2130174A1 DE19712130174 DE2130174A DE2130174A1 DE 2130174 A1 DE2130174 A1 DE 2130174A1 DE 19712130174 DE19712130174 DE 19712130174 DE 2130174 A DE2130174 A DE 2130174A DE 2130174 A1 DE2130174 A1 DE 2130174A1
Authority
DE
Germany
Prior art keywords
line
internal combustion
electronically controlled
injection system
combustion engines
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE19712130174
Other languages
German (de)
Other versions
DE2130174B2 (en
DE2130174C3 (en
Inventor
Andreas Dipl-Ing Weber
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
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 filed Critical Daimler Benz AG
Priority to DE19712130174 priority Critical patent/DE2130174C3/en
Publication of DE2130174A1 publication Critical patent/DE2130174A1/en
Publication of DE2130174B2 publication Critical patent/DE2130174B2/en
Application granted granted Critical
Publication of DE2130174C3 publication Critical patent/DE2130174C3/en
Expired legal-status Critical Current

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
    • 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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
    • F02M53/04—Injectors with heating, cooling, or thermally-insulating means
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/04—Injectors peculiar thereto
    • 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
    • F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/07—Nozzles and injectors with controllable fuel supply
    • F02M2700/077—Injectors having cooling or heating means

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Description

Elektronisch gesteuerte Benzin-Einspritzanlage für Brennkraftmaschinen Die Erfindung bezieht sich auf eine elektronisch gesteuerte Benzin-Einspritzanlage fdr Brennkraftmaschinen, bei der Jedes Einspritzventil huber eine Stichleitung an eine Brennstoff fördernde Ringleitung angeschlossen ist. Electronically controlled gasoline injection system for internal combustion engines The invention relates to an electronically controlled gasoline injection system fdr internal combustion engines, in which each injection valve lifts a branch line a fuel-conveying ring line is connected.

Bei Benzin-Einspritzanlagen dieser Art kann bei hohen Außentemperaturen oder bei hohen Eigentemperaturen der Brennkraftmasclline der Nachteil auftreten, daU die Temperatur der binapritzventile so hoch ansteigt, daß der Urennstoff im Zumeßspalt der Einspritzventile verdampft. Dieses Verdampfen hat die Folge, daß an den Einspritzventilen weniger Brennstoff austritt. Die Leistung der Brennkraftmaschine lätit nach und der Lauf der Brennkraftmaschine wird unregelmäßig. Unter Umständen läßt sich eine stillgesetzte Brennkraftmaschine wegen Brennstoffmangel auch nicht mehr starten.With gasoline injection systems of this type, high outside temperatures or at high internal temperatures of the internal combustion engine, the disadvantage occurs that the temperature of the binary injection valves rises so high that the fuel in the The injection valve's metering gap evaporates. This evaporation has the consequence that Less fuel escapes from the injectors. The power of the internal combustion engine Slows down and the internal combustion engine runs irregularly. In certain circumstances a shutdown internal combustion engine cannot be used because of a lack of fuel start more.

Der Erfindung liegt die Aufgabe zugrunde, die geschilderten Nachteile mit einfachen Mitteln zu vermeiden.The invention is based on the described disadvantages to avoid with simple means.

Erfindungsgemäß wird die gestellte Aufgabe dadurch gelöst, daß innerhalb der Stichleitung eine zweite Leitung vorgesehen ist, deren Eintrittsquerschnitt im Einspritzventil und deren Austrittsquerschnitt in Stromrichtung des Brennstoffes in der Ringleitung in dieser angeordnet ist.According to the invention, the object is achieved in that within the stub line is provided with a second line whose inlet cross-section in the injection valve and its outlet cross-section in the direction of flow of the fuel is arranged in the ring line in this.

Da bei einer elektronisch gesteuerten Benzin-Einspritzanlage an einer Brennk-raftmaschine sofort mit dem Einschalten der ZUndung für die Brennkraftmaschine in der Ringleitung uer Sinspritzanlage Brennstoff gefördert wird, entsteht im Bereich des Austrittsquerschnittes der in der Stichleitung angeordneten zweiten Leitung der Effekt einer Strahlpumpe, wobei durch diesen Effekt durch die zweite Leitung hindurch Brennstoff aus dem Einspritzventil abgesaugt wird. Durch in der Stichleitung nachströmenden Brennstoff wird das Einspritzventil durchgespült und gekühlt, so daß bei aufgeheitzter Brennkraftmaschine und aufgeheizten Einspritzventil weder der Startvorgang Schwierigkeiten bereitet noch sonst der Lauf der Brennkraftmaschine ungünstig beeinflußt wird.Since with an electronically controlled gasoline injection system on one Internal combustion engine immediately when the ignition for the internal combustion engine is switched on Fuel is conveyed in the ring line of the fuel injection system, arises in the area the outlet cross-section of the second line arranged in the stub line the effect of a jet pump, whereby through this effect through the second conduit fuel is sucked out of the injection valve through it. Through in the branch line the fuel that flows in is flushed through the injector and cooled, see above that neither with heated internal combustion engine and heated injection valve the starting process also causes difficulties when the internal combustion engine is running is adversely affected.

In der Zeichnung ist der Gegenstand der Erfindung in einem Ausführungsbesipiel schematisch dargestellt.In the drawing, the subject of the invention is in an exemplary embodiment shown schematically.

Bei einer elektronisch gesteuerten Benzin-Einspritzanlage für eine Brennkraftmaschine ist ein Einspritzventil 1 er eine Stichleitung 2 an eine Ringleitung 3 angeschlossen. in uer Ringleitung 3 wiru sofort beim Einschalten der Zündung für die Brennkraftmaschine Brennstoff in Pfeilrichtung 4 gefördert.With an electronically controlled gasoline injection system for one Internal combustion engine is an injection valve 1 he a branch line 2 to a ring line 3 connected. in the ring line 3 weu immediately when the ignition is switched on for the internal combustion engine promoted fuel in the direction of arrow 4.

Um in dem Einspritzventil 1 eine Durchspülung mit Brennstoff und damit eine Kühlung zu erzeugen, ist innerhalb der Stichleitung 2 eine zweite Leitung 5 angeordnet, deren Mintrittsquerschnitt 6 in dem Einspritzventil 1 liegt, und zwar möglichst tief, wobei diese Stelle sich je nach Ausbildung des Einspritzventiles ändern kann, und deren Austrittsquerschnitt ist 7 in der Ringleitung 3 in Stromwichtung des Brennstoffes gemäß Pfeilrichtung 4 liegt. Wenn der Ringleitung 3 Brennstoff in Pfeilrichtung 4 fließt, tritt im Bereich des Austrittsquerschnittes 7 der zweiten Leitung 5 ein Strahlpumpenefekt auf, der bewirkt, daß in dem Einspritzventil vorhandener und gegebenenfalls aufgeheizter Brennstoff in Pfeilrichtung 8 durch die Leitung 3 abgesaugt wird. In der Stichleltung 2 strömt in Pfeilrichtung 9 Brennstoff aus der Ringleitung 3 nach. Das Einspritzventil wird durchgespült. Der gleiche Durchspüleffekt und die damit erzielte Kühlung wird natürlich auch dann erreicht, wenn die Wirkung der Stichleitung 2 und die der zweiten Leitung 5 vertauscht wird, index der Austrittsquerschnitt 7 der zweiten Leitung 5 entgegen der Strömungsrichtung des Urennstoffes in der Ringleitung 3 angeordnet wird. Dann tritt der Strahlpumpeneffekt im Bereich der Ausclilußstelle der Stichleitung 5 an der Hingleitung 3 auf.To in the injection valve 1 a flushing with fuel and thus To generate cooling, a second line 5 is within the stub line 2 arranged, the Mintrittsqu section 6 is located in the injection valve 1, namely as deep as possible, this point depending on the design of the injection valve can change, and its outlet cross-section is 7 in the ring line 3 in current weighting of the fuel is in the direction of arrow 4. When the ring main 3 fuel flows in the direction of arrow 4, occurs in the area of the exit cross section 7 of the second Line 5 has a jet pump defect that causes it to be present in the injection valve and optionally heated fuel in the direction of arrow 8 through the line 3 sucked off will. In the stitch line 2 flows in the direction of the arrow 9 fuel from the ring line 3 after. The injection valve is flushed through. The same flushing effect and the cooling achieved with it is of course also then achieved when the effect of the stub line 2 and that of the second line 5 interchanged is, index the outlet cross-section 7 of the second line 5 against the direction of flow of urennstoffes is arranged in the ring line 3. Then the jet pump effect occurs in the area of the exclusion point of the branch line 5 on the down line 3.

Claims (2)

AnsprücheExpectations 1.) Elektronisch gesteuerte Benzin-Einspritzanlage für Brennkraftmaschinen, bei der Jedes Einspritzventil über eine Stichleitung an eine Brennstoff fördernde Ringleitung angeschlossen ist, dadurch gekennzeichnet, daß innerhalb der Stichluitung (2) eine zweite Leitung (5) vorgesehen ist, deren Bintrittsquerscimitt (G) im Einspritzventil (1) und deren Austrittsquerschnitt (7) in der Ringleitung (3) in dieser angeordnet ist.1.) Electronically controlled gasoline injection system for internal combustion engines, in which each injection valve is conveyed to a fuel via a branch line Ring line is connected, characterized in that within the branch line (2) a second line (5) is provided whose entry cross-section (G) in the injection valve (1) and its outlet cross-section (7) in the ring line (3) arranged in this is. 2. Anlage nach Anspruch 1, dadurcli gekennzeichnet, daß die zweite Leitung (5) konzentrisch innerhalb der Stichleitung (2) angeordnet ist.2. Plant according to claim 1, dadurcli characterized in that the second Line (5) is arranged concentrically within the stub line (2).
DE19712130174 1971-06-18 1971-06-18 Electronically controlled gasoline injection device for internal combustion engines Expired DE2130174C3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19712130174 DE2130174C3 (en) 1971-06-18 1971-06-18 Electronically controlled gasoline injection device for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712130174 DE2130174C3 (en) 1971-06-18 1971-06-18 Electronically controlled gasoline injection device for internal combustion engines

Publications (3)

Publication Number Publication Date
DE2130174A1 true DE2130174A1 (en) 1972-12-28
DE2130174B2 DE2130174B2 (en) 1978-09-07
DE2130174C3 DE2130174C3 (en) 1979-04-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712130174 Expired DE2130174C3 (en) 1971-06-18 1971-06-18 Electronically controlled gasoline injection device for internal combustion engines

Country Status (1)

Country Link
DE (1) DE2130174C3 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3010613A1 (en) * 1980-03-20 1981-10-01 Robert Bosch Gmbh, 7000 Stuttgart FUEL INJECTION SYSTEM
US4502632A (en) * 1980-12-12 1985-03-05 Robert Bosch Gmbh Electromagnetically actuatable valve, in particular a fuel injection valve for fuel injection systems
US4982902A (en) * 1980-03-20 1991-01-08 Robert Bosch Gmbh Electromagnetically actuatable valve
WO2009124787A1 (en) * 2008-04-10 2009-10-15 Robert Bosch Gmbh Fuel injector and fuel injection system
CN106014732A (en) * 2015-03-30 2016-10-12 福特环球技术公司 Injection valve for an internal combustion engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4136833A1 (en) * 1991-11-08 1993-05-13 Bayerische Motoren Werke Ag ARRANGEMENT FOR FUEL SUPPLY OF AN INTERNAL COMBUSTION ENGINE

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3010613A1 (en) * 1980-03-20 1981-10-01 Robert Bosch Gmbh, 7000 Stuttgart FUEL INJECTION SYSTEM
US4982902A (en) * 1980-03-20 1991-01-08 Robert Bosch Gmbh Electromagnetically actuatable valve
US5060868A (en) * 1980-03-20 1991-10-29 Robert Bosch Gmbh Electromagnetically actuatable valve
US4502632A (en) * 1980-12-12 1985-03-05 Robert Bosch Gmbh Electromagnetically actuatable valve, in particular a fuel injection valve for fuel injection systems
WO2009124787A1 (en) * 2008-04-10 2009-10-15 Robert Bosch Gmbh Fuel injector and fuel injection system
CN106014732A (en) * 2015-03-30 2016-10-12 福特环球技术公司 Injection valve for an internal combustion engine
US10563630B2 (en) 2015-03-30 2020-02-18 Ford Global Technologies, Llc Injection valve for an internal combustion engine
CN106014732B (en) * 2015-03-30 2020-06-26 福特环球技术公司 Injection valve for an internal combustion engine

Also Published As

Publication number Publication date
DE2130174B2 (en) 1978-09-07
DE2130174C3 (en) 1979-04-26

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C3 Grant after two publication steps (3rd publication)
8330 Complete disclaimer