DE300363C

DE300363C -

Info

Publication number: DE300363C
Application number: DENDAT300363D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

^PATENTSCHRIFT^ PATENT LETTERING

JV* 300363 — KLASSE 46 c. GRUPPE JV * 300363 - CLASS 46 c. GROUP

Spritzvergaser mit Brennstoffhilfsbehälter.. . Patentiert im Deutschen. Reiche vom 30. März 1912 ab.Spray carburettor with auxiliary fuel tank ... Patented in German. Submit March 30, 1912.

Die vorliegende Erfinclung bezieht sich auf einen selbsttätigen Spritzvergaser, bei welchem die Regelung des Gasgemisches bei schwankender Belastung der Maschine durch Zuführung von Luft, sogenannter Bremsluft, in den Brennstoffstrom erfolgt. Das Wesen der vorliegenden Erfindung besteht darin, daß der Zutritt der Bremsluft, die durch,einen Brenhstoffhilfsbehälter der Düse zugeführtThe present invention relates on an automatic spray carburetor, in which the regulation of the gas mixture at fluctuating load on the machine due to the supply of air, so-called brake air, takes place in the fuel stream. The essence of the present invention is that the access of the brake air, which is fed through a fuel auxiliary container of the nozzle

ίο wird, innerhalb der Abfallperiode des in diesem Hilfsbehälter herrschenden Flüssigkeits-SLandes willkürlich nach beliebiger Kurve regelbar wird, und.zwar ist der Luftzutritt anfänglich gleich Null, steigt dann aber mitwach-ίο will, within the fall period of this Auxiliary containers of the dominant liquid land arbitrarily adjustable according to any curve and, although the air inflow is initially zero, it then increases with it.

»5 sehdein Unterdruck bzw. abfallendem Flüssigkeitsstande gemäß einer im voraus festgelegten Kurve bis zu seinem durch eine Drosselk öffnung festgelegten Maximum. Dies ist * wichtig, weil bei dem Ingangsetzen und bei langsamem Leerlauf der geringen Zylinder-¹ füllung wegen eine stärkere Anreicherung des Gemisches stattfinden, muß und es wünschenswert ist, daß der Anreicherungsgrad vom Augenblick der Belastungsaufnahme bis zur Erreichung der Vollast allmählich abnimmt.»5 see your negative pressure or falling liquid level according to a curve established in advance up to its maximum established by a throttle opening. This is * important because at the starting and at low speed idle of the small cylinder ¹ filling because a greater enrichment of the mixture take place, it is necessary and it is desirable that the degree of enrichment from the moment of impact absorption to the achievement of the full load is gradually decreased.

Diese Regelung könnte beispielsweise in der Weise geschehen, daß das - Lufteinlaßloch e durch einen im Brennstoffhilfsbehälter angeordneten Schwimmer gesteuert würde.This regulation could be done, for example, in such a way that the air inlet hole e would be controlled by a float arranged in the auxiliary fuel container.

Drese Steuerung und die Anordnung des Ventils wäre aber mechanisch schwer durchführbar und . wegen ihrer Empfindlichkeit für praktische Zwecke unbrauchbar. Die Erfindung bezieht sich daher im wesentlichenThis control and the arrangement of the valve would be mechanically difficult to carry out and . unusable for practical purposes because of their sensitivity. The invention therefore essentially relates

noch.auf eine besondere Vorrichtung, welche mechanisch bewegte Teile überhaupt nicht be-.noch.on a special device, which no mechanically moving parts at all.

nötigt. Zu diesem Zwecke'wird vorliegender Erfindung gemäß in die zur Düsenmündung — führ.ende Brennstoffleitung oder in eine zu letzterer parallel geschaltete Hilfsleitung eine Röhre angeordnet, welche mit in verschiedenen wägerechten Ebenen angeordneten Löchern oder Schlitzen versehen ist. Durch· diese. Röhre muß die durch .die öffnung e eintretende Bremsluft erst hindurchgehen, ehe sie in . den Brennstoffhilfsbehälter gelangt, und es ist ersichtlich, daß infolgedessen die Menge des aus der Brennstoffdüse geförderten <■ Brennstoffes relativ kleiner wird, je mehr Luft eintritt, d.h.. je tiefer der brennstoffspiegel,in dem Brennstoffhilfsbehälter sinkt.compels. For this purpose, according to the present invention, a tube is arranged in the fuel line leading to the nozzle orifice or in an auxiliary line connected in parallel to the latter, which tube is provided with holes or slots arranged in different horizontal planes. Through this. The brake air entering through the opening e must first pass through the tube before it can enter. reaches the auxiliary fuel tank, and it can be seen that as a result, the amount of fuel delivered from the fuel nozzle becomes relatively smaller, the more air enters, ie. the lower the fuel level in the auxiliary fuel tank sinks.

Die Erfindung ist auf beilegender Zeichnung dargestellt, und zwar zeigen die _■'■'The invention is shown in the accompanying drawing shown, namely the _ ■ '■'

Fig. ι und 2 schematische, das Prinzip erläuternde Darstellungen, während Fig. Ι and 2 schematic, the principle explanatory representations, while

Fig. 3 eine, besondere Ausführungsform eines Vergasers nach Fig. 2 mit zentraler Anordnung des Steigrohres innerhalb -'des Spritzrohres darstellt. ■'·'■' ... · 3 shows a special embodiment of a carburetor according to FIG. 2 with a central arrangement of the riser pipe within -'des spray pipe. ■ '·' ■ '... ·

Bei der Ausführung nach Fig. 1 gelangt der Brennstoff aus dem Behälter α durch die Leitung b und die Prosseiöffnung I)₁ in das Spitzrohr c, das einerseits am unteren Ende durch die Leitungd, andererseits in·geeigneter, den jeweiligen Verhältnissen angepaßter Höhe durch die Leitung g mit dem Brennstoffbehälter d in Verbindung steht. In dem Brennstoffhilfsbehälter d ist eine Röhre f (oben Steigrohr genannt) angeordnet, die mit einer Anzahl von untereinander liegenden öffnungen f^l ausgestattet ist und welche oben eine Drosselöffnung e enthält. Der Brenn-In the embodiment according to FIG. 1, the fuel passes from the container α through the line b and the Prossei opening I) ₁ into the pointed tube c, which on the one hand passes through the line d at the lower end and on the other hand at a suitable height adapted to the respective conditions the line g is in communication with the fuel tank d. In the auxiliary fuel container d , a tube f (called riser pipe above) is arranged, which is equipped with a number of openings f ^l lying one below the other and which contains a throttle opening e at the top. The burning

ts. Auflage, ausgegeben am /7. April 19J9J ts. Edition, issued on / 7. April 19J9J

Claims

The auxiliary container rf is closed at the top, but there is no air pocket at the top, an opening f2 is provided. When the machine is idle, the fuel is in: the pointed tube and the auxiliary fuel container at the level χ of the container a. If the motor is started, the spray nozzle c initially only sucks in fuel, since the negative pressure in the suction chamber is not yet large enough to overcome the liquid level x-y. If, however, 1 after the engine has been loaded, the greater negative pressure causes the fuel level to drop to "line g", the air will pass through the top hole in line g. The suction effect of the engine on the one in the auxiliary container The amount of air flowing through g will, however, increase the more the fuel level in the auxiliary container rf falls, because the more it falls, the more openings fx become free for the passage of air more air, through line g to the spray nozzle. If the auxiliary fuel container is then completely emptied, the air flow is limited by opening E. The schematic representation according to Fig. 2 shows the three characteristic parts already identified above: fuel container a, auxiliary fuel container rf and spray tube c in a different connection with one another. The fuel coming from container α flows through the feed pipe b and the calibrated throttle opening 5, into the auxiliary tank 'd and from the head end of the same. through the line "rf1 into the spray pipe c. Through a riser pipe / dipping into this pipe rf, which is similar to that in FIG of the air pipe into the flowing fuel column, since the liquid level in the riser pipe lowers with increasing flow velocity of the fuel and thus one after the other exposes the bores / 1. The brake air passing through these bores behaves exactly as it does with the arrangement 1. The special auxiliary container rf and the special lines rf1 and g in the arrangement according to FIG. • fulfills all tasks of the lines and vessels located to the right of the spray nozzle in Fig. 1. It is readily apparent that the time for the beginning of the Regulation can also be adapted here to any consideration of starting and idling the machine. In the special embodiment of FIG. 2 shown in FIG. 3, the fuel container α has the shape of an annular hole holder, in the interior of which the pipe from FIG. 2 is arranged as a spray pipe. The brake air is introduced through the tube g \ ron from below. It then exits at the upper end of this tube g and enters the inside of the air tube c /. The air openings Z1 of this tube are also in the flowing fuel stream, which flows through the line b and the throttle opening l \ to the spray tube c, and deliver increasing amounts of brake air, as in the arrangement. Fig. 1. "Ρλ τ ic ν ϊ - A ν s v r i) c η r: '■.

1. Spray carburetor with auxiliary fuel tank, which with the outside air is connected by a throttle opening and the leading to the nozzle ignition Fuel line up to a certain negative pressure inside the carburetor with zu- ~

• additional "fuel, fed with brake air at higher negative pressure, characterized by that the brake air in the fuel line leading to the single spray nozzle flows and their amount regulated by the variable fuel level of the auxiliary fuel tank will.

2. \ ^r gasifier according to claim 1, characterized in that the regulation of the brake air takes place through a pipe (/) which is immersed in the fuel line leading to the nozzle orifice or in an auxiliary line connected in parallel to the latter and with a number of different Height of openings (f ¹ ) is provided in such a way that the brake air with falling fuel level finds a growing flow cross-section and therefore a lower exit resistance.

1 sheet of drawings.