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DE480949C - Cooled injection nozzles for internal combustion engines, especially those with airless fuel injection - Google Patents

Cooled injection nozzles for internal combustion engines, especially those with airless fuel injection

Info

Publication number
DE480949C
DE480949C DEM92719D DEM0092719D DE480949C DE 480949 C DE480949 C DE 480949C DE M92719 D DEM92719 D DE M92719D DE M0092719 D DEM0092719 D DE M0092719D DE 480949 C DE480949 C DE 480949C
Authority
DE
Germany
Prior art keywords
internal combustion
injection
combustion engines
nozzle
cooled
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
DEM92719D
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.)
MAN AG
Original Assignee
MAN Maschinenfabrik Augsburg Nuernberg AG
Publication date
Priority to DEM92719D priority Critical patent/DE480949C/en
Application granted granted Critical
Publication of DE480949C publication Critical patent/DE480949C/en
Expired legal-status Critical Current

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
    • F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
    • F02M53/04—Injectors with heating, cooling, or thermally-insulating means
    • F02M53/043—Injectors with heating, cooling, or thermally-insulating means with cooling means other than air cooling
    • 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
    • F02M2700/07—Nozzles and injectors with controllable fuel supply
    • F02M2700/077—Injectors having cooling or heating means

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Description

Gekühlte Einspritzdüse für Verbrennungskraftmaschinen, insbesondere solche mit luftloser Brennstoffeinspritzung Gekühlte Einspritzdüsen für Verbrennungskraftmaschinen sind mehrfach bekannt. Die vorliegende Erfindung betrifft eine besondere Ausführungsform einer derartigen Düse, die -darin besteht, daß ein Einspritzrohr innerhalb eines Düsenkörpers bis zur Düsenplatte - geführt und der im Düsenkörper liegende Teil von einem Mantelrohr umgeben ist, das mit Rippen die Wandung des Düsenkörpers bierührt, wobei die zwischen Düsenkörper und Mantelrohr gebildeten Kanäle mit einer Zu-und Ableitung für das Kühlmittel in Verbindung stehen. Diese Ausführung bewirkt nicht nur eine gute Kühlung des im Verbrennungsrauen liegenden Teiles der Einspritzdüse :einschließlich der Düsenplatte, sondern zeichnet sich auch durch besonders einfache Bauweise aus, die ermöglicht, die ganze Vorrichtung zum Zwecke der Reinigung leicht zu zerlegen und wieder zusammenzubauen.Cooled injection nozzle for internal combustion engines, in particular those with airless fuel injection Cooled injection nozzles for internal combustion engines are known several times. The present invention relates to a particular embodiment such a nozzle, which consists in that an injection tube within a Nozzle body up to the nozzle plate - and the part lying in the nozzle body is surrounded by a jacket pipe which is ribbed into the wall of the nozzle body, wherein the channels formed between the nozzle body and jacket tube with an inlet and Drainage for the coolant are in connection. This execution does not work only good cooling of the part of the injection nozzle lying in the combustion groove : including the nozzle plate, but is also characterized by particularly simple Construction made that enables the whole device for the purpose of cleaning easily to disassemble and reassemble.

In der Zeichnung ist die Erfindung in einer beispielsweisen Ausführungsform in Abb. i im Längsschnitt und in Abb. z im Querschnitt nach A-B der Abb. i dargestellt.In the drawing the invention is in an exemplary embodiment in Fig. i in longitudinal section and in Fig. z in cross section according to A-B of Fig. i.

a ist das Einspritzrohr, das mit einem -konischen Ansatz a1 in der Düsenplatte b sitzt, die in dem Düsenkörper c befestigt ist. Innenhalb des letzteren ist das Einspritzrohr a von einem Mantelrohr d umgeben, das seitliche Rippen d besitzt, die sich gegen die Innenwandung des in den Zylinderdeckel eingesetzten Düsenkörpers c abstützen, so daß zwischen den einzelnen Rippen Kanäle: f I- f 4 gebildet werden, die mit der Kühlmitbelzulei:-tung g und -äbleitung h in Verbindung stehen. Das Mantelrohr d stützt sich innerhalb der Düsenplatte auf einen an dem Einspritzrohr befestigten Bund! und wird durch eine Stopfbüchsenverbindung j, h in seiner Lage gehalten. Nach Lösen der Stopfbüchsenverbin_ dung kann es herausgenommen werden und damit der Düsenkörper von Verunreinigungen und Ablagerungen des Kühlmittels gereinigt werden.a is the injection tube which sits with a conical extension a1 in the nozzle plate b, which is fastened in the nozzle body c. Inside the latter, the injection tube a is surrounded by a jacket tube d, which has lateral ribs d, which are supported against the inner wall of the nozzle body c inserted in the cylinder cover, so that channels: f I- f 4 are formed between the individual ribs are connected to the coolant supply line g and drainage h. The jacket tube d is supported within the nozzle plate on a collar attached to the injection tube ! and is held in place by a gland joint j, h . After loosening the stuffing box connection, it can be removed and the nozzle body can be cleaned of impurities and deposits of the coolant.

Das Kühlmittel tritt bei g in den Düsenkörper ein, fließt bei der in der Abb. z dargestellten Stellung durch die Kanäle f1, f2 nach abwärts gegen die Düsenplatte, kühlt diese, steigt alsdann durch die gegenüberliegenden Kanäle f3, f¢ wieder nach aufwärts und fließt endlich durch die Leitung h ab. Die Düsenplatte wird bei diesem Kühlmittelumlauf sog weitgehend gekühlt, daß Verkokungen der ölrückstände in den Düsenbohrungen mit Sicherheit vermieden werden.The coolant enters the nozzle body at g, flows at the in the position shown in Fig. z through the channels f1, f2 downwards against the nozzle plate, cools it, then rises through the opposite channels f3, f ¢ again upwards and finally flows out through the line h. The nozzle plate is largely cooled during this coolant circulation, so that coking of the oil residues in the nozzle bores can be avoided with certainty.

Claims (1)

PATENTANSPRUCH: Gekühlte Einspritzdüse für V erbrennungskraftmaschinen, insbesondere solche mit luftloser Brennstoffeinspritzung, dadurch gekennzeichnet, daß @@ein Einspritzrohr innerhalb eines Düsenkörpers (c) bis zur Düsenlatte geführt und der im Düsenkörper liegende Teil (a) von einem Mantelrohr (d) umgeben ist, das mit Rippen (fI-f4) die Wandung des Düsenkörpers _ (c) berührt, wobei die zwischen Düsenkörper (c) und Mantelrohr gebildeten Kanäle mit einer Zu- und Ableitung (g, h) _ für das Kühlmittel in Verbindung stehen. PATENT CLAIM: Cooled injection nozzle for internal combustion engines, in particular those with airless fuel injection, characterized in that an injection pipe is led within a nozzle body (c) to the nozzle bar and the part (a) located in the nozzle body is surrounded by a jacket pipe (d), that touches the wall of the nozzle body _ (c) with ribs (fI-f4), whereby the channels formed between the nozzle body (c) and jacket pipe are connected to an inlet and outlet line (g, h) _ for the coolant.
DEM92719D Cooled injection nozzles for internal combustion engines, especially those with airless fuel injection Expired DE480949C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM92719D DE480949C (en) Cooled injection nozzles for internal combustion engines, especially those with airless fuel injection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM92719D DE480949C (en) Cooled injection nozzles for internal combustion engines, especially those with airless fuel injection

Publications (1)

Publication Number Publication Date
DE480949C true DE480949C (en) 1929-08-10

Family

ID=7322203

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM92719D Expired DE480949C (en) Cooled injection nozzles for internal combustion engines, especially those with airless fuel injection

Country Status (1)

Country Link
DE (1) DE480949C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2937141A (en) * 1957-09-10 1960-05-17 Gulf Research Development Co Separating volatile components from a heavy oil by means of a venturi tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2937141A (en) * 1957-09-10 1960-05-17 Gulf Research Development Co Separating volatile components from a heavy oil by means of a venturi tube

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