DE102008042998A1 - Nozzle needle for fuel injector, has end section that is formed on nozzle needle piston piece and another end section that is formed on nozzle needle seat part - Google Patents
Nozzle needle for fuel injector, has end section that is formed on nozzle needle piston piece and another end section that is formed on nozzle needle seat part Download PDFInfo
- Publication number
- DE102008042998A1 DE102008042998A1 DE200810042998 DE102008042998A DE102008042998A1 DE 102008042998 A1 DE102008042998 A1 DE 102008042998A1 DE 200810042998 DE200810042998 DE 200810042998 DE 102008042998 A DE102008042998 A DE 102008042998A DE 102008042998 A1 DE102008042998 A1 DE 102008042998A1
- Authority
- DE
- Germany
- Prior art keywords
- nozzle needle
- piston rod
- piston
- piston part
- nozzle
- 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- Withdrawn
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
- F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
-
- 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
- F02M2200/8038—Fuel injection apparatus manufacture, repair or assembly the assembly involving use of adhesives, glue or the like
-
- 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
- F02M2200/8084—Fuel injection apparatus manufacture, repair or assembly involving welding or soldering
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 eine Düsennadel für einen Kraftstoffinjektor sowie ein Verfahren zu deren Herstellung nach dem Oberbegriff der unabhängigen Ansprüche.The The invention relates to a nozzle needle for a fuel injector and a process for their preparation according to the preamble of independent claims.
Stand der TechnikState of the art
Aus
Zur
Vereinfachung der Fertigung einer derart langen Düsennadel
wurde in der
Aufgabe der vorliegenden Erfindung ist es, eine einfache und kostengünstige Konstruktion für eine Düsennadel eines Kraftstoffinjektors zu schaffen. Die Länge der Düsennadel sollte dabei mit einfachen Mitteln variierbar sein.task The present invention is a simple and inexpensive Construction for a nozzle needle of a fuel injector to accomplish. The length of the nozzle needle should be be variable with simple means.
Offenbarung der ErfindungDisclosure of the invention
Die Aufgabe der Erfindung wird mit den kennzeichnenden Maßnahmen des Anspruchs 1 sowie des nebengeordneten Verfahrensanspruchs gelöst. Durch die separate Herstellung des Düsennadelkolbenteils und der Kolbenstange und das anschließende Zusammenfügen von Düsennadelkolbenteil und Kolbenstange ist es möglich, mit den gleichen Bauteilen Düsennadeln mit unterschiedlichen Längen herzustellen. Dadurch können die Düsennadeln auf unterschiedliche Längen der Injektorkörper angepasst werden, ohne dass dafür jeweils ein passende Düsennadel gefertigt werden muss.The The object of the invention is with the characterizing measures of claim 1 and the independent method claim. By the separate production of the nozzle needle piston part and the piston rod and the subsequent assembly of nozzle needle piston part and piston rod it is possible with the same components nozzle needles with different lengths manufacture. This allows the nozzle needles on adapted to different lengths of the injector body without having a suitable nozzle needle for each must be made.
Vorteilhafte Weiterbildungen der Erfindung sind durch die Maßnahmen der Unteransprüche möglich.advantageous Further developments of the invention are by the measures the dependent claims possible.
Besonders vorteilhaft ist es, wenn der Düsennadelkolbenteil in einer Position am Befestigungsabschnitt der Kolbenstange befestigt ist, welche eine gewünschte Länge L der Düsennadel festlegt. Dabei kann das stirnseitige Ende der Kolbenstange an einer stirnseitigen Planfläche des Düsennadelkolbenteils abschließen oder um einen Betrag über die stirnseitige Planfläche des Düsennadelkolbenteils überstehen, wobei der Betrag so bemessen ist, dass eine am stirnseitigen Ende der Kolbenstange angebrachte Phase an der Planfläche ausläuft.Especially It is advantageous if the nozzle needle piston part in a Position is attached to the attachment portion of the piston rod, which a desired length L of the nozzle needle sets. In this case, the front end of the piston rod to a end face of the nozzle needle piston part complete or by an amount over the frontal Survive the plane of the nozzle needle piston part, the amount being such that one at the front end the piston rod attached phase expires on the plane surface.
Vorteilhaft ist es weiterhin, die Düsennadeln aus dem Düsennadelkolbenteil und der Kolbenstange sowie aus einem Düsennadelsitzteil auszuführen und die separaten Bauteilen zusammenzufügen. Damit liegt eine dreiteilige Düsennadel vor, deren einzelnen Bauteile fertigungstechnischer noch einfacher herstellbar sind. Dabei ist es zweckmäßig, in die Stirnfläche des Düsennadelsitzteils eine Bohrung einzubringen und in dieser Bohrung die Kolbenstange zu befestigen.Advantageous It is still the nozzle needles from the nozzle needle piston part and the piston rod and a nozzle needle seat part perform and assemble the separate components. This is a three-part nozzle needle before, their individual Components manufacturing technology are even easier to produce. It is expedient in the face the nozzle needle seat part to introduce a bore and in This hole to fix the piston rod.
Ausführungsbeispielembodiment
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert.One Embodiment of the invention is in the drawing shown and in the following description in more detail explained.
Es zeigen:It demonstrate:
Der
in
Die
Düsennadel
Der
Steuerraum
Die
hydraulische Verbindung zwischen dem Hochdruckraum
Das
Düsennadelsitzteil
Das
Düsennadelkolbenteil
Die
Kolbenstange
Zur
Herstellung der in
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102006029994 A1 [0002] - DE 102006029994 A1 [0002]
- - DE 202008001965 [0003] - DE 202008001965 [0003]
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810042998 DE102008042998A1 (en) | 2008-10-21 | 2008-10-21 | Nozzle needle for fuel injector, has end section that is formed on nozzle needle piston piece and another end section that is formed on nozzle needle seat part |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810042998 DE102008042998A1 (en) | 2008-10-21 | 2008-10-21 | Nozzle needle for fuel injector, has end section that is formed on nozzle needle piston piece and another end section that is formed on nozzle needle seat part |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008042998A1 true DE102008042998A1 (en) | 2010-04-22 |
Family
ID=42034734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810042998 Withdrawn DE102008042998A1 (en) | 2008-10-21 | 2008-10-21 | Nozzle needle for fuel injector, has end section that is formed on nozzle needle piston piece and another end section that is formed on nozzle needle seat part |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008042998A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006029994A1 (en) | 2006-06-29 | 2008-01-03 | Robert Bosch Gmbh | System and method for displaying images of the surroundings of a motor vehicle |
DE202008001965U1 (en) | 2008-02-13 | 2008-05-08 | Yang, Chung Cheng, Dali City | ratchet wrench |
-
2008
- 2008-10-21 DE DE200810042998 patent/DE102008042998A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006029994A1 (en) | 2006-06-29 | 2008-01-03 | Robert Bosch Gmbh | System and method for displaying images of the surroundings of a motor vehicle |
DE202008001965U1 (en) | 2008-02-13 | 2008-05-08 | Yang, Chung Cheng, Dali City | ratchet wrench |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |