CH158627A - Cooled fuel valve for injection internal combustion engines operating with fuel preheating. - Google Patents
Cooled fuel valve for injection internal combustion engines operating with fuel preheating.Info
- Publication number
- CH158627A CH158627A CH158627DA CH158627A CH 158627 A CH158627 A CH 158627A CH 158627D A CH158627D A CH 158627DA CH 158627 A CH158627 A CH 158627A
- Authority
- CH
- Switzerland
- Prior art keywords
- fuel
- valve
- cooled
- preheating
- internal combustion
- Prior art date
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
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
Gekühltes Br ennstoffvent11 für mit Brennstoff vorw ärmung arbeitende Einspritzbr ennl.r aftmaschinen. Die Erfindung betrifft ein gekühltes Brennstoffventil für mit Brennstoffvorwär- mung arbeitende Einspritzbrennkraftmaschi- nen. Gemäss der Erfindung ist der Kühl raum durch so dicke Wandungen von den Brennstoffräumen vor dem <RTI
ID="0001.0016"> Ventilsitz ge trennt, dass der vorgewärmte Brennstoff der Düse zuströmt, ohne gekühlt zu werden, zum Zwecke, die durch die Vorwärmung erzielte Dünnflüssigkeit des Brennstoffes trotz der Ventilkühlung bis zum Eintritt in den Ver brennungsraum aufrecht zu erhalten.
Ein Ausführungsbeispiel des Erfindungs gegenstandes ist auf der Zeichnung dar gestellt.
Fig. 1 ist ein Schnitt nach der Linie I--I der Fig. 2, Fig. 2 ein Schnitt nach- der Linie II-II der Fig. 1, und Fig. 3 ein Schnitt nach der Linie III-HI der Fig. 1.
<I>a</I> ist das Gehäuse und <I>b</I> die durch eine Feder c belastete Nadel eines vom Brennstoff selbst geöffneten., gekühlten Brennstoffven- fls einer nicht weiter gezeichneten. mit Brennstoffvorwärmung arbeitenden Ein- spritz-Brennkra.ftmaschine. Eine als Stück für sich ausgebildete Nadelführung d und ein auswechselbarer Düsenkörper e mit meh reren Düsenöffnungen und dem Nadelsitz sind vermittelst einer LTberwurfmutter f am Gehäuse befestigt.
Der Ventilvorraum g ist durch den Kanal h an die Brennstoffzulei tung und der Kühlraum i durch die Kanäle <I>k</I> und<I>l</I> an die Kühlmittelzu- bezw. -ablei- tungen angeschlossen. Der Kühlraum und die Kühlmittelleitungen sind durch so dicke Wandungen von den Brennstoffräumen über dem Ventilsitz getrennt, dass der vor gewärmte Brennstoff den Düsenmündungen zuströmt, ohne gekühlt zu werden.
Dadurch wird erreicht, dass der von Natur aus zäh flüssige, durch die Vorwärmung dünnflüssiu, gemachte Brennstoff seine Dünnflüssigkeit trotz .der Kühlung bis zum Eintritt in den Verbrennungsraum beibehält. Zwischen der Nadelführung und der die Kühlmittelkanäle enthaltenden Gehäusewand ist ein Ringraum m ausgespart, der eine Kühlung des Ventil nadel-Schmiermittels und damit eine Beein trächtigung seiner Schmierfähigkeit verhin dert. Endlich ist auch die Sitzfläche der Nadel durch so dicke Wandungen vom Kühl raum getrennt, dass der Brennstoff durch ihn keine Abkühlung erfährt.
Cooled fuel valve 11 for fuel-injection burners working with fuel preheating. The invention relates to a cooled fuel valve for fuel injection engines working with fuel preheating. According to the invention, the cooling chamber is separated from the fuel chambers by such thick walls before the <RTI
ID = "0001.0016"> Valve seat ge separates that the preheated fuel flows to the nozzle without being cooled, for the purpose of maintaining the thin liquid of the fuel achieved by the preheating despite the valve cooling until it enters the combustion chamber.
An embodiment of the subject invention is shown in the drawing.
1 is a section along the line I-I in FIG. 2, FIG. 2 is a section along the line II-II in FIG. 1, and FIG. 3 is a section along the line III-HI in FIG. 1.
<I> a </I> is the housing and <I> b </I> is the needle, loaded by a spring c, of a cooled fuel valve which is opened by the fuel itself and is not shown any further. Injection combustion engine working with fuel preheating. A needle guide d designed as a piece and a replaceable nozzle body e with several nozzle openings and the needle seat are attached to the housing by means of a union nut f.
The valve antechamber g is to the fuel supply line through the channel h and the cooling chamber i through the channels <I> k </I> and <I> l </I> to the Kühlmittelzu- or. leads connected. The cooling space and the coolant lines are separated from the fuel spaces above the valve seat by walls that are so thick that the preheated fuel flows to the nozzle openings without being cooled.
This ensures that the naturally viscous fuel, made thin by preheating, retains its thin liquid despite the cooling until it enters the combustion chamber. Between the needle guide and the housing wall containing the coolant channels, an annular space m is recessed, which prevents cooling of the valve needle lubricant and thus an impairment of its lubricity. Finally, the seat of the needle is separated from the cooling chamber by walls that are so thick that it does not cool the fuel.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH158627T | 1931-10-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH158627A true CH158627A (en) | 1932-11-30 |
Family
ID=4412590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH158627D CH158627A (en) | 1931-10-19 | 1931-10-19 | Cooled fuel valve for injection internal combustion engines operating with fuel preheating. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH158627A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2552679A (en) * | 1947-11-05 | 1951-05-15 | American Bosch Corp | Cooled injection nozzle |
DE1000638B (en) * | 1952-12-18 | 1957-01-10 | Verwertungsgesellschaft Dr Ing | Liquid-cooled injection nozzles for internal combustion engines |
-
1931
- 1931-10-19 CH CH158627D patent/CH158627A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2552679A (en) * | 1947-11-05 | 1951-05-15 | American Bosch Corp | Cooled injection nozzle |
DE1000638B (en) * | 1952-12-18 | 1957-01-10 | Verwertungsgesellschaft Dr Ing | Liquid-cooled injection nozzles for internal combustion engines |
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