DE485864C - Fluid-controlled fuel injection valve for internal combustion engines - Google Patents

Fluid-controlled fuel injection valve for internal combustion engines

Info

Publication number
DE485864C
DE485864C DEL71283D DEL0071283D DE485864C DE 485864 C DE485864 C DE 485864C DE L71283 D DEL71283 D DE L71283D DE L0071283 D DEL0071283 D DE L0071283D DE 485864 C DE485864 C DE 485864C
Authority
DE
Germany
Prior art keywords
injection valve
internal combustion
combustion engines
valve
backflow
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
DEL71283D
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.)
Alstom Transport Deutschland GmbH
Original Assignee
Linke Hofmann Busch GmbH
Publication date
Priority to DEL71283D priority Critical patent/DE485864C/en
Application granted granted Critical
Publication of DE485864C publication Critical patent/DE485864C/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
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • 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
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • 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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • 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
    • F02M2700/074—Injection valve actuated by fuel pressure for pressurised fuel supply

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

Flüssigkeitsgesteuertes; Brennstoffeirtspritzventit für Brennkraftmaschinen Die Erfindung bezieht sich auf ein flüssigkeitsgesteuertes Brennstoffeinspritzventil für Brennkraftmaschinen, bei welchem mittels eines mechanisch gesteuerten und unmittelbar- an den Düsenvorraum, angeschlossenen Rückströmregelventiles die Einspritzung zu veränderlichen Zeitpunkten unterbrochen wird.Fluid controlled; Fuel injection valve for internal combustion engines The invention relates to a liquid-controlled fuel injector for internal combustion engines, in which by means of a mechanically controlled and direct to the nozzle antechamber, the return flow control valve connected to the injection variable times is interrupted.

Das Neue besteht darin, daß zwischen dem Federraum des Einspritzventiles und der Rückströmleitung eine Verbindungsleitung vorgesehen ist, die unmittelbar hinter dem Sitz des Rückströmregelventiles mündet. Durch diese Verbindung wird einerseits das Lecköl des Einspritzventiles abgeleitet, anderseits wird der Rückströmstoß beim Öffnen des Rückströmregelventiles zur Unterstützung der Ventil= schlußfeder nutzbar gemacht.The new thing is that between the spring chamber of the injection valve and a connecting line is provided for the return flow line, which directly opens behind the seat of the backflow control valve. Through this connection on the one hand the leakage oil of the injection valve is diverted, on the other hand, the backflow is Opening the backflow control valve to support the valve = closing spring can be used made.

Die Zeichnung gibt ein Ausführungsbeispiel der Erfindung schematisch wieder.The drawing shows an embodiment of the invention schematically again.

Es bezeichnet i ein Ventilgehäuse und 2 ein Einspritzventil; das unter der Wirkung der Feder 3 mit seinem vorderen nadelförmigen Ende die kegelartige Öffnung q. verschließt. Durch die Bohrung 5 wird der Brennstoff von der Pumpe her über den Kanal 6 in den Düsenhohlraum 7 gedrückt. Im Kanal 8 des Gehäuses i sitzt das durch eine Feder g belastete Regelventil To, dessen vorderes abgesetztes Ende die unmittelbar in den Hohlraum 7 mündende Bohrung 1i verschließt und dessen Betätigung von der Nockenwelle 15 mit dem Nocken 16, über den Stößel 17 und den Schwinghebel 18 geschieht. Die exzentrische Lagerung 1g des Hebels 18 dient zur Verstellung der Einspritzdauer. Mit dem Kanal 8 stehen die Kanäle 12 und 13 in Verbindung, ersterer leitet das durch den Kanal 1i abfließende Öl über die Bohrung 1q. zum Vorratsbehälter des Brennstoffes zurück, während durch letzteren das Lecköl des Einspritzventiles 2. abgeführt und der Rückströmstoß beim Öffnen des Rückströmregelventiles To zur Unterstützung der Ventilschließfeder 3 nutzbar gemacht wird.It denotes i a valve housing and 2 an injection valve; that under the action of the spring 3 with its front needle-shaped end, the cone-like opening q. locks. Through the hole 5, the fuel is from the pump over the Channel 6 pressed into the nozzle cavity 7. This sits through in channel 8 of housing i a spring g loaded control valve To, the front remote end of which is directly in the cavity 7 opening bore 1i closes and its actuation by the Camshaft 15 with the cam 16, via the tappet 17 and the rocker arm 18 happens. The eccentric mounting 1g of the lever 18 is used to adjust the injection duration. Channels 12 and 13 are connected to channel 8, the former forwards this through oil flowing off channel 1i via bore 1q. to the fuel storage tank back, while the leakage oil of the injection valve 2 is discharged through the latter and the backflow shock when the backflow control valve To is opened to support the Valve closing spring 3 is made usable.

Claims (1)

PATENTANSPRUCH: Flüssigkeitsgesteuertes Brennstoffeinspritzventil für Brennkraftmaschinen, bei welchem mittels eines mechanisch gesteuerten und unmittelbar an den Düsenvorraum angeschlossenen Rückströmregelventiles die Einspritzung zu veränderlichen Zeitpunkten unterbrochen wird, dadurch gekennzeichnet, daß zwischen dem Federraum des Einspritzventiles und der Rückströmleitung (12, 1q.) eine Verbindungsleitung (13) vorgesehen ist, die unmittelbar hinter dem Sitz des Rückströmregelventiles (To) mündet und einerseits zur Ableitung von Lecköl, anderseits dazu dient, den Rückströmstoß beim Öffnen des Rückströmventiles zur Unterstützung der Ventilschließfeder (3) nutzbar zu machen.PATENT CLAIM: Liquid-controlled fuel injector for internal combustion engines, in which by means of a mechanically controlled and direct to change the injection valve connected to the nozzle antechamber Times is interrupted, characterized in that between the spring space the injection valve and the return line (12, 1q.) a connecting line (13) is provided, which is immediately behind the seat of the backflow control valve (To) opens and serves on the one hand to discharge leakage oil, on the other hand to the Backflow shock when opening the backflow valve to support the valve closing spring (3) to make usable.
DEL71283D Fluid-controlled fuel injection valve for internal combustion engines Expired DE485864C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL71283D DE485864C (en) Fluid-controlled fuel injection valve for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL71283D DE485864C (en) Fluid-controlled fuel injection valve for internal combustion engines

Publications (1)

Publication Number Publication Date
DE485864C true DE485864C (en) 1929-11-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEL71283D Expired DE485864C (en) Fluid-controlled fuel injection valve for internal combustion engines

Country Status (1)

Country Link
DE (1) DE485864C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046949B (en) * 1954-02-01 1958-12-18 Modag Motorenfabrik Darmstadt Fuel injection system with pump and cooled injection valve
AT405558B (en) * 1988-11-16 1999-09-27 Spitzer Siegward Fuel injection nozzle for internal combustion engines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046949B (en) * 1954-02-01 1958-12-18 Modag Motorenfabrik Darmstadt Fuel injection system with pump and cooled injection valve
AT405558B (en) * 1988-11-16 1999-09-27 Spitzer Siegward Fuel injection nozzle for internal combustion engines

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