DE4141274A1 - Fuel injection device for IC engine - has nozzle housing with fuel channel, which opens into chamber with bellows and needle, connected to valve - Google Patents

Fuel injection device for IC engine - has nozzle housing with fuel channel, which opens into chamber with bellows and needle, connected to valve

Info

Publication number
DE4141274A1
DE4141274A1 DE19914141274 DE4141274A DE4141274A1 DE 4141274 A1 DE4141274 A1 DE 4141274A1 DE 19914141274 DE19914141274 DE 19914141274 DE 4141274 A DE4141274 A DE 4141274A DE 4141274 A1 DE4141274 A1 DE 4141274A1
Authority
DE
Germany
Prior art keywords
needle
valve
bellows
fuel
opens
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.)
Withdrawn
Application number
DE19914141274
Other languages
German (de)
Inventor
Frantisek Sobkovcik
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19914141274 priority Critical patent/DE4141274A1/en
Publication of DE4141274A1 publication Critical patent/DE4141274A1/en
Withdrawn legal-status Critical Current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
    • 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
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • F02M59/462—Delivery valves
    • 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
    • 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
    • F02M59/12—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps having other positive-displacement pumping elements, e.g. rotary
    • F02M59/14—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps having other positive-displacement pumping elements, e.g. rotary of elastic-wall 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
    • 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
    • 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

Landscapes

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

Abstract

The device has a nozzle, to inject fuel into the combustion chamber of an engine. It has a nozzle housing (21) with a fuel channel (41), which opens into a working chamber (42) with expansion bellows (16) and adjustable needle (18). A needle valve (43) is in operational connection with the needle. The needle is spring-loaded and adjustable, and is in connection with an adjusting screw (13). The device also has a pump, with a working chamber, which contains an intake valve, a discharge valve, and a spring-loaded piston with bellows. ADVANTAGE - Produces lower emissions.

Description

Die Erfindung betrifft eine Vorrichtung zum Einspritzen von Kraftstoff in den Verbrennungsraum eines Verbrennungsmotors mit einer Düse.The invention relates to a device for injection of fuel in the combustion chamber one Internal combustion engine with a nozzle.

Bei Kraftfahrzeugen wird der Kraftstoff in den Verbrennungsraum über einen Vergaser angesaugt. Der zerstäubte Kraftstoff beaufschlagt hierbei auch die Innenwände des Arbeitsraumes, deren Fläche etwa das 4-fache der Fläche der Kolbenstirnseite ausmacht. Der zerstäubte Kraftstoff, der im unteren Bereich der Innenwände angeordnet ist, verbrennt erst, wenn die Abgasventile des Verbrennungsraumes geöffnet werden. Damit verbrennt dieser Kraftstoff im Auspuff des Kraftfahrzeuges, so daß er nicht nur ungenutzt verbrannt wird, sondern auch die Umwelt verunreingigt.In motor vehicles, the fuel is in the Combustion chamber sucked in via a carburetor. The atomized fuel also acts on the Inner walls of the work area, the area of which is about 4 times the area of the piston face. The atomized Fuel in the lower part of the inner walls is arranged, only burns when the exhaust valves of the combustion chamber can be opened. With that burns this fuel in the exhaust of the motor vehicle, so that it is not only burned unused, but also that Environment polluted.

Ausgehend von dem obigen Stand der Technik liegt der Erfindung die Aufgabe zugrunde, hier Abhilfe zu schaffen.Based on the above prior art, the Invention based on the object to remedy this.

Die gestellte Aufgabe wird erfindungsgemäß durch ein Düsengehäuse mit einem Kraftstoffkanal, der in einen Arbeitsraum mit einem Faltenbalg sowie einer einstellbaren Nadel mündet, und ein Ventil gelöst, das mit der Nadel betrieblich verbindbar ist. The object is achieved by a Nozzle housing with a fuel channel, which in one Work space with a bellows and an adjustable one The needle opens and a valve is released, which is connected to the needle is operationally connectable.  

Weitere zweckmäßige und vorteilhafte Ausgestaltungen der Erfindung gehen aus den Unteransprüchen hervor.Further expedient and advantageous embodiments of the Invention emerge from the subclaims.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung schematisch dargestellt und wird im folgenden näher erläutert. Es zeigenAn embodiment of the invention is in the drawing is shown schematically and is described in more detail below explained. Show it

Fig. 1 eine Düse im Querschnitt und Fig. 1 shows a nozzle in cross section and

Fig. 2 eine Pumpe im Querschnitt. Fig. 2 shows a pump in cross section.

In Fig. 1 ist eine Düse dargestellt, die aus einem Düsengehäuse 21 mit einem Kraftstoffkanal 41 und einem Arbeitsraum 42 besteht. Im Arbeitsraum 42 ist eine Nadel 18 angeordnet, die mit dem Ventil 43 in Wirkverbindung steht. Die Nadel 18 ist mittels einer federbelasteten Einstellschraube 13 einstellbar. Die Wirkverbindung zwischen der Einstellschraube 13 und der Nadel 18 ist mittels einer Druckfeder 14 und eines Druckkörpers 15 hergestellt, der in einer Dichtungsmutter 19 und einem Dichtungsring 20 gelagert ist. Der Faltenbalg 17 ist im Arbeitsraum 42 angeordnet und steht mit der Nadel 18 in Wirkverbindung. Der untere Bereich des Düsengehäuses 21 ist durch ein Untergehäuse 22 abgeschlossen, in dem ein Ventilkörper angeordnet ist.In Fig. 1 a nozzle is illustrated which consists of a nozzle housing 21 with a fuel channel 41 and a working chamber 42. A needle 18 is arranged in the working space 42 and is operatively connected to the valve 43 . The needle 18 is adjustable by means of a spring-loaded adjusting screw 13 . The operative connection between the adjusting screw 13 and the needle 18 is established by means of a compression spring 14 and a pressure body 15 which is mounted in a sealing nut 19 and a sealing ring 20 . The bellows 17 is arranged in the working space 42 and is operatively connected to the needle 18 . The lower region of the nozzle housing 21 is closed off by a lower housing 22 in which a valve body is arranged.

In Fig. 2 ist eine Pumpe dargestellt, die aus einem Grundkörper 11 und einem Gehäuse 12 besteht. In den Kanal 4 des Grundkörpers 11 münden ein Saugventil 3 und ein Auslaßventil 2. Das Auslaßventil 2 ist im oberen Kopf 1 der Pumpe ausgebildet. Der obere Kopf 1 ist mit dem Gehäuse 12 lösbar verbindbar. Im Kanal 4 befindet sich der Faltenbalg 7, der mit einem federbelasteten Kolben 6 in Wirkverbindung steht. Hierfür ist eine Feder 8 sowie ein Stützring 9 mit einer Unterlage 10 vorgesehen. Im Raum 5 wird der Kraftstoff komprimiert. Der Faltenbalg 7 besteht hierbei aus einer Stahllegierung mit Nickel, Chrom, Titan, Mangan. Die Feder 8 bringt den Kolben 6 in die ursprüngliche Lage zurück.In Fig. 2, a pump is shown, which consists of a base body 11 and a housing 12 . A suction valve 3 and an outlet valve 2 open into the channel 4 of the base body 11 . The outlet valve 2 is formed in the upper head 1 of the pump. The upper head 1 is detachably connectable to the housing 12 . The bellows 7 is located in the channel 4 and is operatively connected to a spring-loaded piston 6 . For this purpose, a spring 8 and a support ring 9 with a base 10 are provided. The fuel is compressed in room 5 . The bellows 7 consists of a steel alloy with nickel, chrome, titanium, manganese. The spring 8 returns the piston 6 to the original position.

Claims (5)

1. Vorrichtung zum Einspritzen von Kraftstoff in den Verbrennungsraum eines Verbrennungsmotors mit einer Düse, gekennzeichnet durch
ein Düsengehäuse (21) mit einem Kraftstoffkanal (41), der in einen Arbeitsraum (42) mit einem Faltenbalg (16) sowie einer einstellbaren Nadel (18) mündet,
und einem Ventil (43), das mit der Nadel (18) betrieblich verbindbar ist.1. Device for injecting fuel into the combustion chamber of an internal combustion engine with a nozzle, characterized by
a nozzle housing ( 21 ) with a fuel channel ( 41 ) which opens into a working space ( 42 ) with a bellows ( 16 ) and an adjustable needle ( 18 ),
and a valve ( 43 ) operably connectable to the needle ( 18 ). 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Nadel (18) federbelastet und einstellbar ist.2. Device according to claim 1, characterized in that the needle ( 18 ) is spring-loaded and adjustable. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Nadel (18) mit einer Einstellschraube (13) in Wirkverbindung steht. 3. Apparatus according to claim 1 or 2, characterized in that the needle ( 18 ) is in operative connection with an adjusting screw ( 13 ). 4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Ventil (43) ein Nadelventil ist.4. Device according to one of claims 1 to 3, characterized in that the valve ( 43 ) is a needle valve. 5. Vorrichtung nach einem der Ansprüche 1 bis 4 mit einer Pumpe, dadurch gekennzeichnet, daß die Pumpe aus einem hohlzylindrischen Grundkörper (11) mit einem ein Saugventil (3) und ein Auslaßventil (2) aufweisenden Arbeitsraum (4) besteht, in dem ein federbelasteter Kolben (6) mit einem Faltenbalg (7) angeordnet ist.5. Device according to one of claims 1 to 4 with a pump, characterized in that the pump consists of a hollow cylindrical base body ( 11 ) with a suction valve ( 3 ) and an outlet valve ( 2 ) having a working space ( 4 ) in which a spring-loaded piston ( 6 ) with a bellows ( 7 ) is arranged.
DE19914141274 1991-12-14 1991-12-14 Fuel injection device for IC engine - has nozzle housing with fuel channel, which opens into chamber with bellows and needle, connected to valve Withdrawn DE4141274A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19914141274 DE4141274A1 (en) 1991-12-14 1991-12-14 Fuel injection device for IC engine - has nozzle housing with fuel channel, which opens into chamber with bellows and needle, connected to valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914141274 DE4141274A1 (en) 1991-12-14 1991-12-14 Fuel injection device for IC engine - has nozzle housing with fuel channel, which opens into chamber with bellows and needle, connected to valve

Publications (1)

Publication Number Publication Date
DE4141274A1 true DE4141274A1 (en) 1993-06-17

Family

ID=6447061

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19914141274 Withdrawn DE4141274A1 (en) 1991-12-14 1991-12-14 Fuel injection device for IC engine - has nozzle housing with fuel channel, which opens into chamber with bellows and needle, connected to valve

Country Status (1)

Country Link
DE (1) DE4141274A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1046809A2 (en) * 1999-04-20 2000-10-25 Siemens Aktiengesellschaft Fluid metering device
EP1731754A1 (en) * 2005-06-06 2006-12-13 Siemens Aktiengesellschaft Manufacturing method for an injector
US20170101966A1 (en) * 2015-10-09 2017-04-13 Continental Automotive Gmbh Fuel injector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT97829B (en) * 1923-09-15 1924-09-10 Georg Roediger Valve, in particular for fuel injection in internal combustion engines.
US1735718A (en) * 1925-04-04 1929-11-12 Andre C Attendu Fuel injector
DE589390C (en) * 1931-09-17 1933-12-06 Westinghouse Bremsen Ges M B H Compressed air braking device
DE3739124A1 (en) * 1986-11-21 1988-06-01 Lucas Ind Plc FUEL INJECTION NOZZLE FOR SUPPLYING FUEL TO THE COMBUSTION SPACE OF AN ENGINE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT97829B (en) * 1923-09-15 1924-09-10 Georg Roediger Valve, in particular for fuel injection in internal combustion engines.
US1735718A (en) * 1925-04-04 1929-11-12 Andre C Attendu Fuel injector
DE589390C (en) * 1931-09-17 1933-12-06 Westinghouse Bremsen Ges M B H Compressed air braking device
DE3739124A1 (en) * 1986-11-21 1988-06-01 Lucas Ind Plc FUEL INJECTION NOZZLE FOR SUPPLYING FUEL TO THE COMBUSTION SPACE OF AN ENGINE

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1046809A2 (en) * 1999-04-20 2000-10-25 Siemens Aktiengesellschaft Fluid metering device
EP1046809A3 (en) * 1999-04-20 2003-06-18 Siemens Aktiengesellschaft Fluid metering device
EP1731754A1 (en) * 2005-06-06 2006-12-13 Siemens Aktiengesellschaft Manufacturing method for an injector
US20170101966A1 (en) * 2015-10-09 2017-04-13 Continental Automotive Gmbh Fuel injector
US10024273B2 (en) * 2015-10-09 2018-07-17 Continental Automotive Gmbh Fuel injector

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8139 Disposal/non-payment of the annual fee