DE2142459A1 - INJECTION SYSTEM FOR COMBUSTION ENGINES - Google Patents
INJECTION SYSTEM FOR COMBUSTION ENGINESInfo
- Publication number
- DE2142459A1 DE2142459A1 DE19712142459 DE2142459A DE2142459A1 DE 2142459 A1 DE2142459 A1 DE 2142459A1 DE 19712142459 DE19712142459 DE 19712142459 DE 2142459 A DE2142459 A DE 2142459A DE 2142459 A1 DE2142459 A1 DE 2142459A1
- Authority
- DE
- Germany
- Prior art keywords
- combustion engines
- injection
- injection system
- fuel
- chamber
- 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.)
- Pending
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
- 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
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/107—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive pneumatic drive, e.g. crankcase pressure drive
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- 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
- F02M57/00—Fuel-injectors combined or associated with other devices
- F02M57/06—Fuel-injectors combined or associated with other devices the devices being sparking plugs
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
-
- 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
- F02M2700/1341—Fuel pump driven by the differential pressure of a gas
Description
Einspritzanlage für Ve rbr ennungs motoren Die Emission schädlicher Stoffe bei Verbrennungsmotoren könnte durch eine Abmagerung des Gemischs wesentlich verbessert werdeno Das Pro blem liegt darin, daß die Zündfähigkeit des mageren Gemischs ungenügend ist. Es wurde deshalb schon vorgeschlagen, ein mageres Gemisch anzug saugen und kurz vor dem Zündzeitpunkt eine zusätzliche Menge Kraftstoff in Nähe der Zündkerze einzuspritzen, um dort, wegen der besseren Zündfähigkeit, ein fetteres Gemisch zu erzeugen Vorzugsweise werden spezielle Zündkerzen verwendet, die ein Einspritzventil enthalten, damit bei nachträglicher Umrüstung keine Arbeiten am Zylinderkopf vorgenommen werden müssen.Injection system for internal combustion engines The emission more harmful Substances in internal combustion engines could be significantly reduced by a leaning of the mixture o The problem is that the ignitability of the lean mixture is insufficient. It has therefore already been suggested to suit a lean mixture suck in and an extra amount of fuel in the vicinity just before the ignition timing the spark plug to inject a richer one because of the better ignitability To generate the mixture Preferably, special spark plugs are used that have a Injection valve included so that no work is done on the Cylinder head must be made.
Die zusätzliche Einspritzung muß in das verdichtete Gennisch erfolgen; daher ist ein relativ hoher Druck nötig. Eine Einspritzanlage konven tioneller Art wäre recht kompliziert und teuer.The additional injection must take place in the compacted Gennisch; therefore a relatively high pressure is necessary. A conventional type of injection system would be quite complicated and expensive.
Nachstehend wird eine Konstruktion beschrieben, die mit hohem Druck arbeitet, keine komplizierte Pumpe erfordert und im Gegensatz zu den Magnetventilen der elektronischen Einspritzung vollkommen trägheitslos funktioniert.A construction using high pressure will be described below works, does not require a complicated pump and in contrast to the solenoid valves the electronic injection works completely inertially.
In der Hochgeschwindigkeitsumformung werden durch elektrische Engt~ ladungen in Flüssigkeiten kurzzeitig Drücke von einigen tausend atü erzeugt.In high-speed forming, electrical constraints cause ~ charges in liquids briefly generate pressures of a few thousand atmospheres.
Es wird vorgeschlagen, den Druckanstieg, der durch die plötzliche elektrische Entladung in einem flüssigen oder gasförmigen Medium entsteht, zur Kraftstoffeinspritzung zu verwenden. Es ist lediglich nötig, eine zweite, spezielle Zündanlage, etwa nach Art der Kondensator-Zündung, zu installieren. Eventuell können doppelte Verteiler gebaut werden, die für Zündung und Einspritzung geeignet sind.It is suggested to reduce the pressure increase caused by the sudden electrical discharge occurs in a liquid or gaseous medium for fuel injection to use. All that is required is a second, special ignition system, for example after Type of capacitor ignition to install. There may be duplicate distributors be built that are suitable for ignition and injection.
Keinesfalls ist eine derartige Einspritzung nur als Zusatzgerät zur Abgasverbesserung zu verwenden; auch die reguläre Einspritzung kann auf diese Weise erfolgen.In no case is such an injection only as an accessory to the To use exhaust gas improvement; regular injection can also be done in this way take place.
Die Zeichnung zeigt im Prinzip die Funktion einer solchen Anlage.The drawing shows in principle the function of such a system.
Die Pumpe 1 fördert Kraftstoff in die Kammer 2, die durch die Membrane 3 von der Kammer 4 getrennt ist. Wenn nun in der mit einer Flüssigkeit gefüllten Kammer 4 an den Elektroden 5 ein Funke über~ springt, wird die entstehende Schockwelle in der Kammer 2 einen kurzzeitigen Druckanstieg bewirken. Dadurch wird der Kraftstoff aus dem Einspritzventil 6, das vorzugsweise innerhalb der hier nicht gezeigten Zündkerze angeordnet ist, herausgepreßt. Der Druck sinkt dann in der Kamrner 2 wieder ab und die Pumpe 1 fördert Kraftstoff nach.The pump 1 delivers fuel into the chamber 2 through the membrane 3 is separated from the chamber 4. If now in the filled with a liquid If a spark jumps over chamber 4 at the electrodes 5, the resulting shock wave is generated cause a brief pressure increase in chamber 2. This gets the fuel from the injection valve 6, which is preferably inside the spark plug, not shown here is arranged, pressed out. The pressure then drops again in the chamber 2 and the pump 1 delivers more fuel.
Bei der Entladung der Elektroden, schließt sich das Rückschlagven til 8. Die Kammern 2 und 4 sind zur Kühlung mit den Rippen 8 versehen. Die Menge des eingespritzten Kraftstoffs kann auf verschiedene Weise dosiert werden. Mechanisch über die zugeführte Kraftstoffmenge oder über eine einstellbare Vorspannung der Membrane und damit über den Druck in der Kammer 4.When the electrodes are discharged, the non-return valve closes til 8. The chambers 2 and 4 are provided with ribs 8 for cooling. The amount of the injected fuel can be metered in various ways. Mechanically via the amount of fuel supplied or via an adjustable bias of the Membrane and thus via the pressure in chamber 4.
Auf elektrischem Wege kann die Intensität des Funkens an den Elektroden 5 reguliert werden, die sich ebenfalls auf den Druck in der Kammer 4 auswirkt. In manchen Fällen kann die Entladung direkt im Kraftstoff erfolgen; insbesondere bei Kraftstoffen mit hohem Siedepunkt.Electrically, the intensity of the spark on the electrodes 5, which also has an effect on the pressure in the chamber 4. In In some cases the discharge can take place directly in the fuel; especially at High boiling point fuels.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712142459 DE2142459A1 (en) | 1971-08-25 | 1971-08-25 | INJECTION SYSTEM FOR COMBUSTION ENGINES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712142459 DE2142459A1 (en) | 1971-08-25 | 1971-08-25 | INJECTION SYSTEM FOR COMBUSTION ENGINES |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2142459A1 true DE2142459A1 (en) | 1973-03-01 |
Family
ID=5817669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19712142459 Pending DE2142459A1 (en) | 1971-08-25 | 1971-08-25 | INJECTION SYSTEM FOR COMBUSTION ENGINES |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2142459A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19608063A1 (en) * | 1996-03-02 | 1997-09-04 | Daimler Benz Ag | Fuel injector, particularly for injecting diesel fuel into combustion chamber of IC engine |
US5765535A (en) * | 1995-03-23 | 1998-06-16 | Pierburg Ag | Fuel supply system for internal combustion engines |
-
1971
- 1971-08-25 DE DE19712142459 patent/DE2142459A1/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5765535A (en) * | 1995-03-23 | 1998-06-16 | Pierburg Ag | Fuel supply system for internal combustion engines |
DE19608063A1 (en) * | 1996-03-02 | 1997-09-04 | Daimler Benz Ag | Fuel injector, particularly for injecting diesel fuel into combustion chamber of IC engine |
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