DE671430C - Starting device for carburettor engines - Google Patents

Starting device for carburettor engines

Info

Publication number
DE671430C
DE671430C DED67653D DED0067653D DE671430C DE 671430 C DE671430 C DE 671430C DE D67653 D DED67653 D DE D67653D DE D0067653 D DED0067653 D DE D0067653D DE 671430 C DE671430 C DE 671430C
Authority
DE
Germany
Prior art keywords
line
starting device
starting mixture
cylinder
starting
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
DED67653D
Other languages
German (de)
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 DED67653D priority Critical patent/DE671430C/en
Application granted granted Critical
Publication of DE671430C publication Critical patent/DE671430C/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
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/10242Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10281Means to remove, re-atomise or redistribute condensed fuel; Means to avoid fuel particles from separating from the mixture
    • 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
    • F02M1/04Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling being auxiliary carburetting apparatus able to be put into, and out of, operation, e.g. having automatically-operated disc valves
    • 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
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/1015Air intakes; Induction systems characterised by the engine type
    • F02M35/10196Carburetted engines
    • 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
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/104Intake manifolds
    • F02M35/108Intake manifolds with primary and secondary intake passages
    • 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
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/104Intake manifolds
    • F02M35/112Intake manifolds for engines with cylinders all in one line

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Means For Warming Up And Starting Carburetors (AREA)

Description

Anlaßvorrichtung für Vergasermotoren Die vorliegende Erfindung betrifft eine Verbesserung von Anlaßvorrichtungen für Vergasermotoren, bei welchen ein Anlaßgemisch durch eine enge, den Hauptvergaser umgehende und in der Nähe der Zylindereinlaßöffnung einmündende Leitung durch den an dieser Stelle herrschenden Unterdruck zugeführt wird.Carburetor Engine Starting Apparatus The present invention relates to an improvement in starters for carburettor engines in which a starting mixture through a narrow one, bypassing the main carburetor and near the cylinder inlet port The opening line is fed by the negative pressure prevailing at this point will.

Die Erfindung besteht darin, daß die Hauptansaugeleitung von der Einmü;ndungsstelle der Anlaßgemischleitung ab zur Zylindereinlaßöffnung hin abfällt und daß entsprechend auch der zum Zylindereinlaßventil führende Kanal im Zylinder abfällt.The invention consists in that the main intake line from the point of confluence the starting mixture line drops off towards the cylinder inlet opening and that accordingly the duct in the cylinder leading to the cylinder inlet valve also drops.

Dadurch wird .erreicht, daß der Ansaugeluftstrom in der Hauptansaugeleitung und die Schwerkraftbahnen der aus der Anlaßgemischleitung austretenden. Brennstoffteilchen praktisch zusammenfallen. Dadurch wird verhindert, daß die Brennstoffteilchen quer durch den Luftstrom hindurchsinken und sich so dessen mitreißender Wirkung entziehen. Der Brennstoff gelangt vielmehr mit Sicherheit schwebend 11 den Brennraum und bewirkt ein rasches Anspringen des Motors.This ensures that the intake air flow in the main intake line and the trajectories of gravity of the exiting the starting mixture line. Fuel particles practically coincide. This prevents the fuel particles from getting across sink through the air flow and thus evade its enthralling effect. Rather, the fuel reaches the combustion chamber floating 11 and causes it a quick start of the engine.

Auf der Zeichnung ist die Erfindung in einem Ausführungsbeispiel veranschaulicht, und zwar zeigen schematisch Abb. i das Ansaugerohr eines Vierzylindermotors mit Haupt- und Anlaßvergasereinrichtung in Ansicht, Abb.2 einen Schnitt durch das Ansaugerohr nach der Linie A-B von Abb. i.In the drawing, the invention is illustrated in an exemplary embodiment, namely show schematically Fig. i with the intake pipe of a four-cylinder engine Main and starter carburettor in view, Fig. 2 a section through the intake pipe according to the line A-B of Fig. i.

Es bezeichnet a. die gemeinschaftliche Schwimmerkammer, b die Gemischkammer des Hauptvergasers, c das Hauptansaugerohr mit z. B. vier Einlaßstutzen cl, c2, c3 und cl. Vor dem Ansaugerohr ist über der Gemischkammer b die übliche Drosselklappe d angeordnet. An die Schwimmerkammer a ist eine weitere Düse e angeschlossen, welche den Brennstoff einem Mischrohr f zuleitet, durch welches z. B. von außen her Luft zutreten kann. Ober dem Mischrohr ist ein Absperrglied g vorgesehen, durch welches eine Verbindung des Mischrohres f über eine Leitung /z mit dem Ansaugerohr c hergestellt oder unterbrochen werden kann. Vor seinem Übertritt in das Ansaugerohr c erstreckt sich die Leitung 1t als sog. Mischleitung i über die ganze Länge des Ansaugerohres c, und je eine Abzweigung il, i2, i3 und il mündet jeweils vor einem der Ansaugerohrstutzen c1 bis c4 in das Ansaugerohr c ein (Abb. 2). An jeder Mischleitungseinmündung il bis iQ ist eine Zerstäubereinrichtung h, z. B. in Form eines Tuchfilters, vorgesehen. Wie die Abb. 2 zeigt, verläuft -jeder Ansaugerohrstutzen cl bis cl gegen den Motor hin schräg nach unten und geht gegen das jeweils zugehörige Einlaßventil m zu in eine durch das Ventil in überwachte abfallende Krümmung n über. Dadurch wird bewirkt, daß die Schwerkraftbahnen der in den Saugrohrstutzen cl eintretenden Brennstoffteilchen praktisch mit der Richtung des Ansaugeluftstromes zusammenfallen.It denotes a. the common float chamber, b the mixture chamber of the main carburetor, c the main suction pipe with z. B. four inlet ports cl, c2, c3 and cl. In front of the intake pipe, the usual throttle valve d is arranged above the mixture chamber b. Another nozzle e is connected to the float chamber a, which feeds the fuel to a mixing tube f, through which z. B. from the outside air can enter. A shut-off member g is provided above the mixing pipe, by means of which a connection between the mixing pipe f and the suction pipe c can be established or interrupted via a line / z. Before it passes into the intake pipe c, the line 1t extends as a so-called mixed line i over the entire length of the intake pipe c, and a respective branch il, i2, i3 and il opens into the intake pipe c in front of one of the intake pipe sockets c1 to c4 (Fig. 2). At each mixed line junction il to iQ is an atomizer h, z. B. in the form of a cloth filter, provided. As fig. 2, -each Ansaugerohrstutzen extends cl cl up against the engine out obliquely downward and goes against the respective associated intake valve to m in n through the valve in monitored sloping curvature over. This has the effect that the gravitational trajectories of the fuel particles entering the intake manifold connector cl practically coincide with the direction of the intake air flow.

Das Absperrglied g, das die weitere Luftzufuhr zum Startgemisch beim Durchströmen durch das Mischrohr regelt, wird zweckmäßig durch ein Gestänge o vom Spritzbrett her geregelt, während die Regelung der Drosselklappe d in üblicher Weise durch ein Gestänge p erfolgt. Es kann diese Regelung der Stellung des Absperrgliedes g aber auch automatisch in Abhängigkeit von der Drehzahl erfolgen. Gegebenenfalls kann auf das Absperrglied g verzichtet werden, indem man bei geöffneter Drosselklappe d den vom Motor erzeugten Unterdruck sich hauptsächlich auf die Mischkammer b, bei geschlossener Drosselklappe d dagegen auf die Anlaßvergasereinrichtung e, f einwirken läßt. Die Mischluft kann dabei entweder von außen, z. B. durch eine besondere Leitung C, der Mischkammer b entnommen werden. Z. B. erfolgt die Mischung dabei in bekannter Weise durch Injektorwirkung mittels eines bis zum Brennstoffspiegel herabgeführten Tauchrohres, so daß die Luft durch den Brennstoff hindurch mitangesogen wird.The shut-off element g, which regulates the further air supply to the starting mixture as it flows through the mixing tube, is expediently regulated by a linkage o from the splashboard, while the control of the throttle valve d is carried out in the usual way by a linkage p. This regulation of the position of the shut-off element g can, however, also take place automatically as a function of the speed. If necessary, the shut-off element g can be dispensed with by allowing the negative pressure generated by the engine to act mainly on the mixing chamber b when the throttle valve d is open, and on the starter carburetor device e, f when the throttle valve d is closed. The mixed air can either come from the outside, e.g. B. can be removed from the mixing chamber b through a special line C. For example, the mixing takes place in a known manner by injector action by means of a dip tube that is brought down to the fuel level, so that the air is also sucked in through the fuel.

Claims (1)

PATENTANSPRÜCHE: r. Anlaßvorrichtung für Vergasermotoren, bei der ein Anlaßgemisch durch eine enge, den Hauptvergaser umgehende und in der Nähe der Zylindereinlaßöffnung einmündende Leitung durch den an dieser Stelle herrschenden Unterdruck zugeführt wird, dadurch gekennzeichnet, daß die Hauptansaugeleitung (c) von der Einmündungsstelle der Anlaßgemischleitung ab zur Zylindereinlaßöffnung hin abfällt und daß entsprechend auch der zum Zylindereinlaßventil (m) führende Kanal (u) im Zylinder abfällt. a. Anlaßvorrichtung nach Anspruch r, dadurch gekennzeichnet, daß an der Einmündung der Anlaßgemischleitung (7t) ein Zerstäuber (k) vorgesehen ist.PATENT CLAIMS: r. Starting device for carburetor engines, in which a starting mixture is supplied through a narrow line bypassing the main carburettor and opening in the vicinity of the cylinder inlet opening due to the negative pressure prevailing at this point, characterized in that the main intake line (c) extends from the junction of the starting mixture line to the cylinder inlet opening drops down and that correspondingly also the channel (u) leading to the cylinder inlet valve (m) drops in the cylinder. a. Starting device according to claim r, characterized in that an atomizer (k) is provided at the junction of the starting mixture line (7t).
DED67653D 1934-03-09 1934-03-09 Starting device for carburettor engines Expired DE671430C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED67653D DE671430C (en) 1934-03-09 1934-03-09 Starting device for carburettor engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED67653D DE671430C (en) 1934-03-09 1934-03-09 Starting device for carburettor engines

Publications (1)

Publication Number Publication Date
DE671430C true DE671430C (en) 1939-02-07

Family

ID=7059769

Family Applications (1)

Application Number Title Priority Date Filing Date
DED67653D Expired DE671430C (en) 1934-03-09 1934-03-09 Starting device for carburettor engines

Country Status (1)

Country Link
DE (1) DE671430C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2470256A1 (en) * 1979-11-22 1981-05-29 Renault System for cold starting of carburetted petrol engines - provides supplementary injection of atomised petrol-air mixture into inlet manifold when choke and starter motor are activated

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2470256A1 (en) * 1979-11-22 1981-05-29 Renault System for cold starting of carburetted petrol engines - provides supplementary injection of atomised petrol-air mixture into inlet manifold when choke and starter motor are activated

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