DE589552C - Injection valve for internal combustion engines - Google Patents

Injection valve for internal combustion engines

Info

Publication number
DE589552C
DE589552C DED52760D DED0052760D DE589552C DE 589552 C DE589552 C DE 589552C DE D52760 D DED52760 D DE D52760D DE D0052760 D DED0052760 D DE D0052760D DE 589552 C DE589552 C DE 589552C
Authority
DE
Germany
Prior art keywords
valve
cutting edge
internal combustion
combustion engines
valve body
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
DED52760D
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.)
Deutsche Werke Kiel A G
Original Assignee
Deutsche Werke Kiel A G
Publication date
Priority to DED52760D priority Critical patent/DE589552C/en
Application granted granted Critical
Publication of DE589552C publication Critical patent/DE589552C/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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/06—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves being furnished at seated ends with pintle or plug shaped extensions

Description

Einspritzventil für $rennkraftmaschinen Gegenstand der Erfindung ist ein flüssigkeitsgesteuertes Einspritzventil für Brennkraftmaschinen, dessen Nadel hinter der Ventilsitzfläche mit einem Zapfen versehen ,ist, der- zwischen sich und dem Ventilkörper einen Autrittsspalt frei läßt. Um bei derartigen Einspritzventilen eine gute Zerstäubung des eingespritzten Brennstoffs zu erreichen, ist gemäß der Erfindung am freien Ende des Zapfens und an dem ihn umschließenden Ventilkörper je eine Schneide vorgesehen, die zusammen den Austrittsspalt bilden.Injection valve for racing engines is the subject of the invention a liquid-controlled injection valve for internal combustion engines, its needle is provided behind the valve seat surface with a pin, which is between them and the valve body leaves an access gap free. To with such injectors Achieving good atomization of the injected fuel is according to FIG Invention at the free end of the pin and on the valve body surrounding it a cutting edge is provided, which together form the exit gap.

Es ist bereits bekannt, bei Einspritzventilen den Austrittsspalt dadurch zu bilden, daß eine Schneide mit einer Fläche zusammenwirkt, wobei diese Schneide am Zapfen oder am Ventilkörper angeordnet ist. Derartige Einspritzventile haben den Nachteil, daß der austretende Brennstoff an der Fläche haftet, wodurch die Zerstäubung beeinträchtigt und Koksablagerung auf dieser Fläche, besonders bei schweren Treibölen, verursacht wird. Dieser Nachteil ist gemäß der Erfindung vermieden, weil der Austrittsspalt durch zwei Schneiden gebildet ist.It is already known that this causes the exit gap in injection valves to form that a cutting edge cooperates with a surface, this cutting edge is arranged on the pin or on the valve body. Such injectors have the disadvantage that the escaping fuel adheres to the surface, causing atomization and coke deposits on this surface, especially with heavy fuel oils, caused. This disadvantage is avoided according to the invention because of the exit gap is formed by two cutting edges.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung im Längsschnitt bei offenem Ventil dargestellt.In the drawing, an embodiment of the invention is in longitudinal section shown with the valve open.

Die Nadel a des Brennstoffventils ist hinter der kegelförmigen Ventilsitzfläche b mit einem Zapfen c versehen, an dessen freiem Ende durch eine Einschnürung eine Schneide d gebildet ist. Gegenüber dieser Schneide d ist durch eine Ausnehmung am Ventilkörper eine zweite Schneide e gebildet, deren Durchmesser nur wenig größer ist als derjenige der Schneide d. Die Schneiden d und e bilden den Austrittsspalt für den Brennstoff.The needle a of the fuel valve is provided behind the conical valve seat surface b with a pin c, at the free end of which a cutting edge d is formed by a constriction. Opposite this cutting edge d, a second cutting edge e is formed by a recess on the valve body, the diameter of which is only slightly larger than that of cutting edge d. The cutting edges d and e form the exit gap for the fuel.

Die beiden Schneiden werden vorteilhaft so angeordnet, daß sie sich bei offenem Ventil gegenüberstehen (vgl. Zeichnung). Dadurch wird erreicht, daß die Brennstoffstrahlen den Brennraum nach allen Richtungen hin bestreichen.The two cutting edges are advantageously arranged so that they are face each other when the valve is open (see drawing). It is thereby achieved that the fuel jets brush the combustion chamber in all directions.

Die Schneide e ist vorteilhaft an einem besonderen Einsatzstück f gebildet, das mit dem eigentlichen Ventilkörper g verbunden ist. Dadurch wird eine genaue Einstellung und Auswechselung dieser Schneide ermöglicht.The cutting edge e is advantageous on a special insert piece f formed, which is connected to the actual valve body g. This creates a allows precise adjustment and replacement of this cutting edge.

Claims (3)

PATENTANSPRÜCHE: i. Flüssigkeitsgesteuertes Einspritzventil für Brennkraftmaschinen, dessen Nadel hinter der Ventilsitzfläche mit einem Zapfen versehen ist, . der zwischen sich und dem Ventilkörper einen Austrittsspalt frei läßt, dadurch gekennzeichnet, daß am freien Ende des Zapfens und an dem ihn umschließenden Ventilkörper je eine Schneide vorgesehen ist, die zusammen den Austrittsspalt bilden. PATENT CLAIMS: i. Liquid-controlled injection valve for internal combustion engines, the needle of which is provided with a pin behind the valve seat surface,. the between leaves an outlet gap free for itself and the valve body, characterized in that that at the free end of the pin and on the valve body surrounding it each one Cutting edge is provided, which together form the exit gap. 2. Einspritzventil nach Anspruch i, dadurch gekennzeichnet, daß die beiden Schneiden so angeordnet sind, daß sie sich bei geöffnetem Ventil gegenüberstehen. 2. Injector according to claim i, characterized in that the two cutting edges are arranged in this way are that they face each other when the valve is open. 3. Einspritzventil nach Anspruch i oder a, dadurch gekennzeichnet, daß die Ventilkörperschneide an einem besonderen Einsatzstück gebildet ist.3. Injector after Claim i or a, characterized in that the valve body cutting edge on one special insert is formed.
DED52760D Injection valve for internal combustion engines Expired DE589552C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED52760D DE589552C (en) Injection valve for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED52760D DE589552C (en) Injection valve for internal combustion engines

Publications (1)

Publication Number Publication Date
DE589552C true DE589552C (en) 1933-12-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DED52760D Expired DE589552C (en) Injection valve for internal combustion engines

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Country Link
DE (1) DE589552C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434151A (en) * 1941-05-19 1948-01-06 Edwin M Fisk Fuel injection nozzle
DE861344C (en) * 1948-10-02 1952-12-29 Bosch Gmbh Robert Injection valve for internal combustion engines
FR2435607A1 (en) * 1978-09-08 1980-04-04 Bendix Corp INJECTOR VALVE WITH PROFILE INTERFACE BETWEEN SEAT AND POINTEAU
US4417694A (en) * 1980-10-22 1983-11-29 The Bendix Corporation Injector valve with contoured valve seat and needle valve interface
EP1904740A1 (en) * 2005-01-18 2008-04-02 Deyang Hou Mixed-mode fuel injector with a variable orifice

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434151A (en) * 1941-05-19 1948-01-06 Edwin M Fisk Fuel injection nozzle
DE861344C (en) * 1948-10-02 1952-12-29 Bosch Gmbh Robert Injection valve for internal combustion engines
FR2435607A1 (en) * 1978-09-08 1980-04-04 Bendix Corp INJECTOR VALVE WITH PROFILE INTERFACE BETWEEN SEAT AND POINTEAU
US4417694A (en) * 1980-10-22 1983-11-29 The Bendix Corporation Injector valve with contoured valve seat and needle valve interface
EP1904740A1 (en) * 2005-01-18 2008-04-02 Deyang Hou Mixed-mode fuel injector with a variable orifice
EP1904740A4 (en) * 2005-01-18 2011-06-15 Deyang Hou Mixed-mode fuel injector with a variable orifice

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