DE913599C - Device and method for mixture formation in internal combustion engines - Google Patents
Device and method for mixture formation in internal combustion enginesInfo
- Publication number
- DE913599C DE913599C DEO1143D DEO0001143D DE913599C DE 913599 C DE913599 C DE 913599C DE O1143 D DEO1143 D DE O1143D DE O0001143 D DEO0001143 D DE O0001143D DE 913599 C DE913599 C DE 913599C
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- valve
- piston
- pump
- fuel
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2700/00—Mechanical control of speed or power of a single cylinder piston engine
- F02D2700/02—Controlling by changing the air or fuel supply
- F02D2700/0217—Controlling by changing the air or fuel supply for mixture compressing engines using liquid fuel
- F02D2700/0261—Control of the fuel supply
- F02D2700/0266—Control of the fuel supply for engines with fuel injection
-
- 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
- F02M2700/13—Special devices for making an explosive mixture; Fuel pumps
- F02M2700/1317—Fuel pumpo for internal combustion engines
- F02M2700/1364—Fuel pump controlled by means of a fuel return valve
Description
Durch das Patent 744425 sind spezielle Regeleinrichtungen für solche Ottomotoren bekanntgeworden, welche den Brennstoff vor oder hinter dem Lufteinlaßventil durch Einspritzdüsen mit unveränderlichem Querschnitt einspritzen. Das überlaufventil in diesen Reglern wird dabei .einerseits im öffnungssinne vom Druck des von der Brennstoffplumpe geförderten Brennstoffes, andererseits im Schließsinne durch Kräfte belastet, die den Differenzdrücken oder der Geschwindigkeitsenergie der Luft im Ansaugerohr entnommen sind.The patent 744425 provides special control devices for such Otto engines became known, which the fuel in front of or behind the air inlet valve inject through injection nozzles with unchangeable cross-section. The overflow valve In these regulators, on the one hand, in the opening sense of the pressure of the Fuel pump pumped fuel, on the other hand in the closing sense by forces loaded that the differential pressures or the velocity energy of the air in the Are removed from the intake pipe.
Bei Anwendung dieser Regelung auf Mehrzylindereinspritzpumpen entstehen hierbei bauliche Schwierigkeiten, die durch die Erfindung verbessert werden.When this scheme is applied to multi-cylinder injection pumps here structural difficulties which are improved by the invention.
Die Steuerung ist deswegen bei der Erfindung in die Pumpe selbst herein verlegt worden.The control is therefore in the invention in the pump itself has been relocated.
Um dieselbe weiter zu vereinfachen und insbesondere neue dichtende Steuerorgane, welche von außen betätigt werden, zu vermeiden, erfolgt bei dieser Erfindung die Steuerung der Verbindung vom P'umpendruckraum nach der Düse hin durch den Kolben selbst.To further simplify the same and in particular new sealing Control organs, which are operated from the outside, are to be avoided with this one Invention by controlling the connection from the pump pressure chamber to the nozzle the piston itself.
Es ist zu beachten, daß in diesem Falle der Kolben nicht -dazu dient, das von ihm geförderte Volumen nach der Düse zu leiten, sondern, er betätigt ein Steuerorgan, welches ganz selbständig eine Verbindung zwischen dem Pumpendruckraum, in welchen alle Pumpen fördern, und der Düse herstellt, so daß also einerseits ein Teil der Förderung der anderen Pumpen durch diese eine Öffnung geht, andererseits auch nicht die gesamte Förderung des eben steuernden Kolbens durch die von ihm geöffnete Verbindung geht.It should be noted that in this case the piston does not serve to to direct the volume it delivers to the nozzle, but rather, it actuates a Control unit, which independently establishes a connection between the pump pressure chamber, in which all pumps promote, and the nozzle manufactures, so that on the one hand a Part of the delivery of the other pumps goes through this one opening, on the other hand also not the entire promotion of the piston that is just controlling through the piston opened by it Connection goes.
Die Menge der jeweils durchtretenden Flüssigkeit wird vielmehr nur durch den allen Pumpendruckräumen gemeinsamen Regeldruck sowie durch die Querschnitte der Düsenleitung und Einspritzöffnung bestimmt.Rather, the amount of liquid passing through is only through the control pressure common to all pump pressure chambers and through the cross-sections the nozzle line and injection opening determined.
In der Abb. i ist die Gesamtanordnung schematisch dargestellt: A ist ein Sechszylindermotor mit dem LuftsaugrohrB, in welches die Regelvorrichtung C eingebaut ist. Durch -diese wird der Druck in,der Druckleitung D, welche alle Druckräume der Pumpe G miteinander verbindet, auf einer der Luftmenge :entsprechenden Höhe gehalten, während der Abfiuß der überschüssigen Brennstoffmenge durch E nach der Pumpensaugleitung F zu erfolgt.The overall arrangement is shown schematically in Fig. I: A is a six-cylinder engine with the air intake manifold B into which the control device C is built in. Through this the pressure in, the pressure line D, which all pressure chambers the pump G connects to one another, at an altitude corresponding to the amount of air: held while the excess amount of fuel is drained through E after the Pump suction line F closed.
Die Kolben L der Pumpe G sind nun so eingestellt, @daß ihr oberer Totpunkt ungefähr die Mitte der Öffnungszeit der Einspritzung trifft.The pistons L of pump G are now set so that their upper Dead center hits roughly the middle of the injection opening time.
Der Kolben L hebt also am Hubende das schon geöffnete Druckventil H, dessen Hub von dem Ventil J begrenzt wurde, welches durch !eine starke Feder auf seinem Sitz gehalten wurde. Gegen diese Feder hebt nun der Kolben beide Ventile um ein kleines Stück, so daß während .dieser Zeit der j Druckraum 1) mit der Leitung ,nach der Düse J verbanden ist.At the end of the stroke, the piston L lifts the already open pressure valve H, the stroke of which was limited by valve J, which was operated by a strong spring was held in his seat. The piston now lifts both valves against this spring by a little bit, so that during this time the j pressure chamber 1) with the line after nozzle J is connected.
Abb.2 zeigt nun die Konstruktion :der Pumpe ausführungsgemäß. In dem Pumpengehäuse G sitzt die Kolbenführung I(, in welcher der Kolben L arbeitet. In der gezeichneten Stellung befindet er sich im oberen Totpunkt und hat mit seinem kleinen Aufsatz S :das Druckventil H und damit das Steuerventil J angehoben, so daß die Düsenleitung R mit :dem Pumpendruckraum D1 und mit dem überlaufventil verbunden ist. Die starke Feder P ist so bemessen, daß sie das Ventil J gegen den höchsten unter ihm entstehenden:Druckgeschlossenhaltenkann.Fig.2 now shows the construction: the pump as designed. The piston guide I (, in which the piston L works, sits in the pump housing G. In the position shown, it is at top dead center and, with its small attachment S, has raised the pressure valve H and thus the control valve J, so that the nozzle line R. is connected to: the pump pressure chamber D1 and to the overflow valve The strong spring P is dimensioned in such a way that it can keep the valve J closed against the highest pressure generated under it.
Dias Druckventil H sitzt in der Verschraubung M, welche :die Kolbienführung I( festdrückt und oben von d er KappeN geschlossen wird.The pressure valve H sits in the screw connection M, which: the piston guide I (pressed firmly and closed at the top by cap N.
In diese Kappe N ist das Führuxigsstüek O für das Steuerventil J dichtend .eingeschraubt. Durch die Höhe dieser Dichtung T kann die öffnungshöhe des Steuerventils J bestimmt werden.In this cap N, the Führuxigsstüek O for the control valve J is sealing .screwed in. Due to the height of this seal T, the opening height of the control valve J can be determined.
Das Ste@nerventil J kann auch durch einen eingeschliffenem Schieber ersetzt werden.The Ste @ nerventil J can also through a ground slide be replaced.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEO1143D DE913599C (en) | 1936-08-21 | 1936-08-21 | Device and method for mixture formation in internal combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEO1143D DE913599C (en) | 1936-08-21 | 1936-08-21 | Device and method for mixture formation in internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE913599C true DE913599C (en) | 1954-07-19 |
Family
ID=7349452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEO1143D Expired DE913599C (en) | 1936-08-21 | 1936-08-21 | Device and method for mixture formation in internal combustion engines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE913599C (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE196622C (en) * | ||||
DE331452C (en) * | 1918-02-18 | 1921-01-07 | Knut Jonas Elias Hesselman | Fuel pump system, especially for internal combustion engines with several cylinders, with a common fuel pump for all cylinders |
DE410323C (en) * | 1922-12-12 | 1925-03-03 | Ballot Sa Des Ets | Fuel pump |
-
1936
- 1936-08-21 DE DEO1143D patent/DE913599C/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE196622C (en) * | ||||
DE331452C (en) * | 1918-02-18 | 1921-01-07 | Knut Jonas Elias Hesselman | Fuel pump system, especially for internal combustion engines with several cylinders, with a common fuel pump for all cylinders |
DE410323C (en) * | 1922-12-12 | 1925-03-03 | Ballot Sa Des Ets | Fuel pump |
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