DE663276C - Idle device on injection carburettors for internal combustion engines - Google Patents

Idle device on injection carburettors for internal combustion engines

Info

Publication number
DE663276C
DE663276C DEA81818D DEA0081818D DE663276C DE 663276 C DE663276 C DE 663276C DE A81818 D DEA81818 D DE A81818D DE A0081818 D DEA0081818 D DE A0081818D DE 663276 C DE663276 C DE 663276C
Authority
DE
Germany
Prior art keywords
idle
fuel
internal combustion
injection
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.)
Expired
Application number
DEA81818D
Other languages
German (de)
Inventor
Alexander Abramson
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.)
Individual
Original Assignee
Individual
Publication date
Priority to DEA81818D priority Critical patent/DE663276C/en
Application granted granted Critical
Publication of DE663276C publication Critical patent/DE663276C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M1/00Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2700/00Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/43Arrangements for supplying air, fuel or auxiliary fluids to a combustion space of mixture compressing engines working with liquid fuel
    • F02M2700/4302Arrangements for supplying air, fuel or auxiliary fluids to a combustion space of mixture compressing engines working with liquid fuel whereby air and fuel are sucked into the mixture conduit
    • F02M2700/4373Mixture improving devices
    • F02M2700/4376Mechanical devices

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)

Description

Leerlaufvorrichtung an Spritzvergasern für Brennkraftmaschinen Die Erfindung bezieht sich auf eine Leerlaufvorrichtung .an Spritzvergasern für Brennkraftmaschinen, bei welcher der den Brennstoff aus der Leerlaufdüse in das Saugrohr führende Kanal in der Saugrohrwand frei ausmündet und der .aus diesem Kanal austretende Brennstoff durch die angesaugte Luft längs des Bodens einer in der Achserrichtung liegenden, in geringem Abstande von der Leerlaufdüse beginnenden Vertiefung der Saugrohrwand geführt wird. Mit dieser bekannten Vorrichtung kann ein gründliches Vermischen von Brennstoff und Luft zur Bildung des Leerlauf-Brenngemisches nicht erzielt werden, weil die angesaugte Luft den aus -der Leerlaufdüse austretenden Brennstoff zwingt, längs des Bodens der Vertiefung der Saugrohrwand zu strömen. Luft und Brennstoff strömen daher nebeneinander, ein Brenngemisch wird nicht gebildet, der Brennstoff gelangt, urzerstäubt von der Luft mitgerissen, in den Zylinder der Brennkraftmaschine, wodurch sich ein übermäßig hoher spezifischer Verbrauch an Brennstoff !und unregelmäßiger Leerlauf .ergibt.Idle device on injection carburetors for internal combustion engines The invention relates to an idling device .an injection carburetors for internal combustion engines, in which the channel leading the fuel from the idle nozzle into the intake manifold opens freely in the suction pipe wall and the fuel emerging from this channel by the sucked in air along the bottom of a lying in the axis direction, at a short distance from the idle nozzle beginning depression of the suction pipe wall to be led. With this known device, a thorough mixing of Fuel and air to form the idle fuel mixture are not achieved, because the sucked in air forces the fuel to come out of the idling nozzle, to flow along the bottom of the recess of the suction tube wall. Air and fuel therefore flow side by side, a fuel mixture is not formed, the fuel gets into the cylinder of the internal combustion engine, swept away by the air, which results in an excessively high specific consumption of fuel! and irregular Idle.

Diesen Nachteil zu beheben, ist der Zweck der Erfindung. Sie besteht darin, daß die Vertiefung in der Saugrohrivand als schmale, seichte Rinne ausgeführt ist, ,an deren von der Leerlaufdüse abgekehrtem Ende eine in das Saugrohr hineinragende Prallwand angeordnet ist. Durch diese konstruktive Maßnahme wird erzielt, daß die Strömungsgeschwindigkeit des Leerlaufbrennstoffes in der Rinne keine nennenswerte Verringerung erfährt und deshalb der Brennstoff mit solcher Energie gegen die Prallwand auftrifft, daß er in der Richtung gegen das Innere des Saugrohres zu zerstäubt und sich innig mit der angesaugten Luft mischt.To remedy this disadvantage is the purpose of the invention. she consists in that the recess in the Saugrohrivand is designed as a narrow, shallow channel is, at the end facing away from the idle nozzle a protruding into the intake manifold Baffle is arranged. This constructive measure ensures that the Flow velocity of the idle fuel in the channel is not worth mentioning Reduction undergoes and therefore the fuel with such energy against the baffle occurs that it is atomized in the direction towards the interior of the suction tube and mixes intimately with the sucked in air.

In der Zeichnung ist eine Ausführungsform der Vorrichtung gemäß der Erfindung dargestellt. Fig. i zeigt einen Schnitt des finit der Leerlaufdüse versehenen Saugrohres, Fig. z einen Schnitt nach der Linie A-13 der Fig. i.The drawing shows an embodiment of the device according to FIG Invention shown. Fig. I shows a section of the finite idle nozzle provided Suction tube, Fig. Z shows a section along the line A-13 of Fig. I.

In dem Saugrohr i ist in bekannter Weise die Drosselklappe a angeordnet. Aus der Leerlaufdüse 5 tritt der Brennstoff durch den Kanal 4. in das Saugrohr. In geringem Abstand 8 von der Kanalmiindung beginnt. eine in der Achserrichtung liegende Vertiefung üi der Saugrohi-wand, längs deren Boden der Leerlaufbrennstoff durch die angesaugte Luft geführt wird.In the intake manifold i, the throttle valve a is arranged in a known manner. From the idle nozzle 5, the fuel passes through the channel 4 into the intake manifold. At a short distance 8 from the mouth of the canal begins. one in the axis direction lying depression üi the Saugrohi-wall, along the bottom of which the idle fuel is guided through the sucked in air.

Gemäß der Erfindung ist diese Vertiefung in der Saugrohrwand als schmale, seichte Rinne 6 ausgeführt, rund an deren von der Leerlaufdüse abgekehrtem Ende ist eine in das Saugrohr hineinragende Wand 7 angeordnet.According to the invention, this recess is in the suction pipe wall as a narrow, executed shallow channel 6, round at the end facing away from the idle nozzle a wall 7 projecting into the suction pipe is arranged.

Durch diese Maßnahmen wird der eingangs erläuterte Effekt erzielt, nachdem der Leerlaufbremistoff kraftvoll auf die Wand 7 auftrifft und gegen das Imlere des Saugrohres in die angesaugte Luft zerstäubt, wodurch die Bildung eines vollkommenen Leerlauf-Brenngemischesgesichert ist.These measures achieve the effect explained at the beginning, after the idle brake material hits the wall 7 forcefully and against the Imlere of the suction tube is atomized into the sucked in air, creating the formation of a is assured of a perfect idle fuel mixture.

Claims (1)

PATENT ANSPRUCII: Leerlaufvorrichtung an Spritzvergasern für Brennkraftm.aschinen, bei welcher der den Brennstoff aus der Leerlauf düse in das Saugrohr führende Kanal in der Saugr ohrwand frei ausmündet und der aus diesem Kanal austretende Brennstoff durch die angesaugte Luft längs des Bodens einer in der Achserrichtung liegenden, in geringem Abstande von der Leerlaufdüse beginnenden Vertiefung der Saugrolir%vlnd geführt wird, dadurch gekennzeichnet, daß diese Vertiefung als schmale, seichte Rinne (6) ausgeführt ist, an deren von der Leerlaufdüse abgekehrtem Ende eine in das Saugrohr hineinragende Prallwand (7) angeordnet ist. PATENT ANSPRUCII: Idle device on injection carburettors for internal combustion engines, in which the channel leading the fuel from the idle nozzle into the suction pipe opens out freely in the suction pipe wall and the fuel emerging from this channel flows through the sucked in air along the bottom of one in the axis direction , is guided at a small distance from the idle nozzle beginning recess of the suction roller, characterized in that this recess is designed as a narrow, shallow channel (6), at the end facing away from the idle nozzle, a baffle wall (7) protruding into the suction tube is arranged is.
DEA81818D Idle device on injection carburettors for internal combustion engines Expired DE663276C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA81818D DE663276C (en) Idle device on injection carburettors for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA81818D DE663276C (en) Idle device on injection carburettors for internal combustion engines

Publications (1)

Publication Number Publication Date
DE663276C true DE663276C (en) 1938-08-02

Family

ID=6948423

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA81818D Expired DE663276C (en) Idle device on injection carburettors for internal combustion engines

Country Status (1)

Country Link
DE (1) DE663276C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4153650A (en) * 1977-06-15 1979-05-08 Toyota Jidosha Kogyo Kabushiki Kaisha Idling fuel supplying system of a carburetor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4153650A (en) * 1977-06-15 1979-05-08 Toyota Jidosha Kogyo Kabushiki Kaisha Idling fuel supplying system of a carburetor

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