DE102005022535A1 - Nozzle group for injection valve comprises base body, needle guide body, nozzle needle movable within guide body, overlap area containing groove on guide body with anti-twist device; injection valve with said nozzle group - Google Patents
Nozzle group for injection valve comprises base body, needle guide body, nozzle needle movable within guide body, overlap area containing groove on guide body with anti-twist device; injection valve with said nozzle group Download PDFInfo
- Publication number
- DE102005022535A1 DE102005022535A1 DE200510022535 DE102005022535A DE102005022535A1 DE 102005022535 A1 DE102005022535 A1 DE 102005022535A1 DE 200510022535 DE200510022535 DE 200510022535 DE 102005022535 A DE102005022535 A DE 102005022535A DE 102005022535 A1 DE102005022535 A1 DE 102005022535A1
- Authority
- DE
- Germany
- Prior art keywords
- nozzle
- guide body
- recess
- needle guide
- needle
- 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.)
- Ceased
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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
-
- 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
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8015—Provisions for assembly of fuel injection apparatus in a certain orientation, e.g. markings, notches or specially shaped sleeves other than a clip
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8092—Fuel injection apparatus manufacture, repair or assembly adjusting or calibration
-
- 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
- F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
- F02M2547/003—Valve inserts containing control chamber and valve piston
-
- 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
- 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
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Die Erfindung betrifft ein Einspritzventil und eine Düsenbaugruppe für das Einspritzventil. Die Düsenbaugruppe umfasst einen Düsenkörper mit einer Ausnehmung und einen Nadelführungskörper mit einer Ausnehmung, der in die Ausnehmung des Düsenkörpers ragt.The The invention relates to an injection valve and a nozzle assembly for the Injector. The nozzle assembly includes a nozzle body with a recess and a needle guide body with a recess, which projects into the recess of the nozzle body.
Immer strengere gesetzliche Vorschriften bezüglich der zulässigen Schadstoff-Emissionen von Brennkraftmaschinen, die in Kraftfahrzeugen angeordnet sind, machen es erforderlich, diverse Maßnahmen vorzunehmen, durch die die Schadstoff-Emissionen gesenkt werden. Ein Ansatzpunkt hierbei ist, die während des Verbrennungsprozesses des Luft/Kraftstoff-Gemisches erzeugten Schadstoff-Emissionen zu senken. Insbesondere die Bildung von Ruß ist stark abhängig von der Aufbereitung des Luft/Kraftstoff-Gemisches in dem jeweiligen Zylinder der Brennkraftmaschine. Um eine sehr gute Gemischaufbereitung zu erreichen, wird Kraftstoff zunehmend unter sehr hohem Druck zugemessen. Im Falle von Diesel-Brennkraftmaschinen betragen die Kraftstoffdrücke bis zu 2000 bar.always Stricter legal regulations regarding permissible pollutant emissions of internal combustion engines, which are arranged in motor vehicles, make it necessary to carry out various measures the pollutant emissions be lowered. One starting point here is that during the Combustion process of the air / fuel mixture generated pollutant emissions to lower. In particular, the formation of carbon black is highly dependent on the preparation of the air / fuel mixture in the respective cylinder the internal combustion engine. To a very good mixture preparation too reach, fuel is increasingly metered under very high pressure. In the case of diesel internal combustion engines, the fuel pressures are up to 2000 bar.
Aus
der
Aus
der
Die Aufgabe der Erfindung ist es, ein Einspritzventil und eine Düsenbaugruppe für das Einspritzventil zu schaffen, das bzw. die einfach ein präzises Zumessen von Fluid ermöglicht.The The object of the invention is an injection valve and a nozzle assembly for the To provide injection valve, the or simply a precise metering of fluid allows.
Die Aufgabe wird gelöst durch die Merkmale der unabhängigen Ansprüche. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet.The Task is solved by the characteristics of the independent Claims. Advantageous embodiments of the invention are characterized in the subclaims.
Die Erfindung zeichnet sich aus durch ein Einspritzventil und eine Düsenbaugruppe für das Einspritzventil. Die Düsenbaugruppe umfasst einen Düsenkörper mit einer ersten Ausnehmung und einen Nadelführungskörper mit einer zweiten Ausnehmung. Der Nadelführungskörper ragt in die erste Ausnehmung des Düsenkörpers. In der zweiten Ausnehmung ist axial beweglich eine Düsennadel angeordnet, die sich in die erste Ausnehmung des Düsenkörpers erstreckt. Durch die Düsennadel ist in einer Schließposition der Düsennadel ein Fluidfluss durch eine Einspritzöffnung in dem Düsenkörper unterbunden und ansonsten freigegeben. Der Nadelführungskörper und die Wandung der ersten Ausnehmung des Düsenkörpers bilden einen Überlappungsbereich, in dem eine Nut in dem Düsenkörper oder in dem Nadelführungskörper ausgebildet ist. Ist die Nut in dem Düsenkörper ausgebildet, so erstreckt sie sich von einer Mündung der ersten Ausnehmung des Düsenkörpers in die erste Ausnehmung des Düsenkörpers hinein. Ist die Nut an dem Nadelführungskörper ausgebildet, so erstreckt sie sich von einer Seite des Nadelführungskörpers, die der Einspritzöffnung zugewandt ist, in Richtung hin zu der Mündung der ersten Ausnehmung. In die Nut ragt eine Verdrehsicherung, die starr mit dem Nadelführungskörper bzw. mit dem Düsenkörper gekoppelt ist. Das heißt, dass die Verdrehsicherung starr mit dem Nadelführungskörper gekoppelt ist, wenn die Nut in dem Düsenkörper ausgebildet ist, und dass die Verdrehsicherung starr mit dem Düsenkörper gekoppelt ist, wenn die Nut in dem Nadelführungskörper ausgebildet ist.The Invention is characterized by an injection valve and a nozzle assembly for the Injector. The nozzle assembly includes a nozzle body with a first recess and a needle guide body with a second recess. The needle guide body protrudes in the first recess of the nozzle body. In the second recess is axially movable a nozzle needle arranged, which extends into the first recess of the nozzle body. Through the nozzle needle is in a closed position the nozzle needle prevents fluid flow through an injection opening in the nozzle body and otherwise released. The needle guide body and the wall of the first Form recess of the nozzle body an overlap area, in which a groove in the nozzle body or formed in the needle guide body is. Is the groove formed in the nozzle body, so it extends from an opening of the first recess of the nozzle body in the first recess of the nozzle body inside. Is the groove formed on the needle guide body, so it extends from one side of the needle guide body facing the injection port is, towards the mouth the first recess. In the groove protrudes a rotation, the rigid with the needle guide body or coupled with the nozzle body is. This means, that the anti-rotation is rigidly coupled to the needle guide body when the Groove formed in the nozzle body is, and that the rotation lock rigidly coupled to the nozzle body is when the groove is formed in the needle guide body is.
Falls der Nadelführungskörper relativ zu dem Düsenkörper gegenüber einer vorgegebenen Position des Nadelführungskörpers zu dem Düsenkörper verdreht ist, so kann dies zu einem nachteilig veränderten Einspritzverhalten führen. Die Verdrehsicherung verhindert einfach in Zusammenwirken mit der Nut ein Verdrehen des Nadelführungskörpers relativ zu dem Düsenkörper um deren gemeinsame Achse. Dies trägt einfach zu einem vorgegebenen Einspritzverhalten durch das Einspritzventil, insbesondere durch die Düsenbaugruppe und zu einem präzisen Zumessen von Fluid bei.If the needle guide body is rotated relative to the nozzle body relative to a predetermined position of the needle guide body to the nozzle body, this can lead to a disadvantageously changed injection behavior. The rotation prevents easy in cooperation with the groove twisting of the needle guide body relative to the nozzle body about their common axis. This simply contributes to a given injection behavior through the injection valve, in particular through the nozzle assembly and to a precise metering of fluid.
In einer vorteilhaften Ausgestaltung der Düsenbaugruppe umfasst die Verdrehsicherung eine Sicherungskugel. Die sphärische Form der Sicherungskugel ermöglicht eine einfache Montage von Nadelführungskörper und Düsenkörper. Sicherungskugeln können einfach sehr klein hergestellt werden und können so einfach zu einer Platz sparenden Ausbildung der Verdrehsicherung beitragen.In an advantageous embodiment of the nozzle assembly includes the rotation a safety ball. The spherical Shape of the safety ball allows a simple assembly of needle guide body and Nozzle body. backup balls can can be made very small and can be so easy to place saving training to contribute to the anti-rotation.
In einer weiteren vorteilhaften Ausgestaltung der Düsenbaugruppe umfasst die Verdrehsicherung einen Sicherungsstift. Der Sicherungsstift ist einfach herstellbar.In In a further advantageous embodiment of the nozzle assembly, the anti-rotation device comprises a Safety pin. The locking pin is easy to produce.
In einer weiteren vorteilhaften Ausgestaltung der Düsenbaugruppe ist die Verdrehsicherung einstückig mit dem Nadelführungskörper bzw. dem Düsenkörper ausgebildet. Dies trägt einfach zu einer guten Belastbarkeit der Verdrehsicherung bei.In a further advantageous embodiment of the nozzle assembly is the rotation one piece with the needle guide body or formed the nozzle body. This carries easy to a good resilience of the rotation.
Ausführungsbeispiele der Erfindung sind im Folgenden anhand der schematischen Zeichnungen näher erläutert.embodiments The invention are explained in more detail below with reference to the schematic drawings.
Es zeigen:It demonstrate:
Elemente gleicher Konstruktion oder Funktion sind figurenübergreifend mit den gleichen Bezugszeichen gekennzeichnet.elements same construction or function are cross-figurative with the same Reference number marked.
Ein
Einspritzventil mit einer ersten Ausführungsform einer Düsenbaugruppe
Der
Düsenkörper
Eine
Hochdruckzuführung
umfasst eine Hochdruckbohrung
Die
Düsennadel
Bevorzugt
ist die Hochdruckbohrung
Alternativ
ist die Hochdruckbohrung
Dem
Steuerventil
In
einer Schließposition
sitzt die Düsennadel
An
dem Nadelführungskörper
Die
jeweilige Position der Düsennadel
Der
Druck in dem Steuerraum
Eine
Nut
Die
Düsenbaugruppe
Die
Verdrehsicherung kann alternativ auch eine Sicherungskugel
Bei
einer alternativen Ausführungsform (
Die
Verdrehsicherung kann stoffschlüssig, kraftschlüssig oder
formschlüssig
mit dem Nadelführungskörper
Die
Erfindung ist nicht auf die angegebenen Ausführungsbeispiele beschränkt. Beispielsweise können die
Ausführungsbeispiele
miteinander kombiniert werden. Beispielsweise kann die Nut
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510022535 DE102005022535A1 (en) | 2005-05-17 | 2005-05-17 | Nozzle group for injection valve comprises base body, needle guide body, nozzle needle movable within guide body, overlap area containing groove on guide body with anti-twist device; injection valve with said nozzle group |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510022535 DE102005022535A1 (en) | 2005-05-17 | 2005-05-17 | Nozzle group for injection valve comprises base body, needle guide body, nozzle needle movable within guide body, overlap area containing groove on guide body with anti-twist device; injection valve with said nozzle group |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005022535A1 true DE102005022535A1 (en) | 2006-11-23 |
Family
ID=37310942
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200510022535 Ceased DE102005022535A1 (en) | 2005-05-17 | 2005-05-17 | Nozzle group for injection valve comprises base body, needle guide body, nozzle needle movable within guide body, overlap area containing groove on guide body with anti-twist device; injection valve with said nozzle group |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102005022535A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103814208A (en) * | 2011-06-14 | 2014-05-21 | 西港能源有限公司 | Dual fuel injection valve |
EP3418585A1 (en) * | 2017-06-19 | 2018-12-26 | Hamilton Sundstrand Corporation | Nozzle assembly |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB804116A (en) * | 1955-10-12 | 1958-11-05 | Cav Ltd | Liquid fuel injection nozzles for internal combustion engines |
AT229086B (en) * | 1961-06-21 | 1963-08-26 | Friedmann & Maier Ag | Injector |
DE19541508A1 (en) * | 1995-11-08 | 1997-05-15 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engines |
-
2005
- 2005-05-17 DE DE200510022535 patent/DE102005022535A1/en not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB804116A (en) * | 1955-10-12 | 1958-11-05 | Cav Ltd | Liquid fuel injection nozzles for internal combustion engines |
AT229086B (en) * | 1961-06-21 | 1963-08-26 | Friedmann & Maier Ag | Injector |
DE19541508A1 (en) * | 1995-11-08 | 1997-05-15 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engines |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103814208A (en) * | 2011-06-14 | 2014-05-21 | 西港能源有限公司 | Dual fuel injection valve |
EP2721281A4 (en) * | 2011-06-14 | 2015-08-12 | Westport Power Inc | Dual fuel injection valve |
CN103814208B (en) * | 2011-06-14 | 2016-10-12 | 西港能源有限公司 | Dual fuel injection valve |
EP3418585A1 (en) * | 2017-06-19 | 2018-12-26 | Hamilton Sundstrand Corporation | Nozzle assembly |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2102486A1 (en) | Injector with an axial pressure-compensating control valve | |
DE102008001597A1 (en) | Fuel injector | |
EP2082127A1 (en) | Injector for injecting fuel into combustion chambers of internal combustion engines | |
DE102007047152A1 (en) | Injector with an annulus separate anchor space | |
DE102011086339A1 (en) | Fuel injector, in particular common rail injector | |
DE102006054063A1 (en) | fuel injector | |
EP1574701A1 (en) | Common rail injector | |
DE102008035087A1 (en) | Injector | |
EP1373714A1 (en) | Injection valve | |
DE102005022535A1 (en) | Nozzle group for injection valve comprises base body, needle guide body, nozzle needle movable within guide body, overlap area containing groove on guide body with anti-twist device; injection valve with said nozzle group | |
DE19937677C2 (en) | Injector with improved sealing surface arrangement | |
EP1115969B1 (en) | Valve for the dosed introduction of a volatilized combustible fuel into the intake line of an internal combustion engine | |
EP2275666B1 (en) | Fuel injector with pressure-equalised control valve | |
EP1043496B1 (en) | Injector for fuel injection in an internal combustion engine | |
DE102004041172B3 (en) | Fuel injection valve for internal combustion engines has servo valve, body and inner and outer nozzle needles constructed so that depending upon position of outer piston of servo valve the position of outer nozzle needle is adjustable | |
DE102007006946A1 (en) | Injector for injecting fuel into combustion chambers of internal combustion engines | |
DE102007005382A1 (en) | Injector i.e. common rail injector, for injecting fuel e.g. diesel, into combustion chamber of internal-combustion engine, has control valve for varying control pressure, and fuel tank connected with nozzle chamber via throttle channel | |
DE102006050042A1 (en) | Injector, particularly common rail injector, for fuel injection in combustion chambers of internal-combustion engines, has actuator arranged in injector body, which is arranged to operate valve case of control valve | |
DE102007010498A1 (en) | Injector, particularly common-rail-injector for injecting fuel into combustion chamber of internal-combustion engine, has control valve connected with high pressure area and separated from low pressure area in primary switching position | |
DE112007000904B4 (en) | Injection device for an internal combustion engine | |
DE102009007213B4 (en) | Injector assembly for an injection valve | |
DE102009026564A1 (en) | Fuel injector for injecting fuel into combustion chamber of internal-combustion engine, has control valve element that is formed and arranged such that small resulting hydraulic force is applied on control valve element | |
DE102005023368B4 (en) | Nozzle assembly for an injection valve and injection valve | |
DE102007034319A1 (en) | injector | |
DE102005023179B3 (en) | Injection valve for common rail fuel injection system has drain chamber connected to leakage drilling via restrictor which creates back-pressure to reduce flow of fuel via sealing gaps into drain chamber |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |