DE102007051584A1 - Fuel injection valve for fuel injection devices of internal combustion engines, has valve seat body that is axially braced against axial stop with additional spray hole washer by deformable plastic - Google Patents
Fuel injection valve for fuel injection devices of internal combustion engines, has valve seat body that is axially braced against axial stop with additional spray hole washer by deformable plastic Download PDFInfo
- Publication number
- DE102007051584A1 DE102007051584A1 DE200710051584 DE102007051584A DE102007051584A1 DE 102007051584 A1 DE102007051584 A1 DE 102007051584A1 DE 200710051584 DE200710051584 DE 200710051584 DE 102007051584 A DE102007051584 A DE 102007051584A DE 102007051584 A1 DE102007051584 A1 DE 102007051584A1
- Authority
- DE
- Germany
- Prior art keywords
- valve
- valve seat
- seat body
- fuel injection
- housing
- 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- Withdrawn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
- 239000000446 fuel Substances 0.000 title claims abstract description 40
- 238000002347 injection Methods 0.000 title claims abstract description 36
- 239000007924 injection Substances 0.000 title claims abstract description 36
- 239000007921 spray Substances 0.000 title claims abstract description 35
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 6
- 239000004033 plastic Substances 0.000 title abstract description 6
- 229920003023 plastic Polymers 0.000 title abstract description 6
- 239000000853 adhesive Substances 0.000 claims abstract description 23
- 230000001070 adhesive effect Effects 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000011324 bead Substances 0.000 claims description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- -1 PTFE (Teflon) Chemical compound 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000009760 functional impairment Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
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
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1853—Orifice plates
-
- 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
- F02M2200/8053—Fuel injection apparatus manufacture, repair or assembly involving mechanical deformation of the apparatus or parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Stand der TechnikState of the art
Die Erfindung geht aus von einem Kraftstoffeinspritzventil für Kraftstoffeinspritzvorrichtungen von Brennkraftmaschinen nach dem Oberbegriff des Anspruchs 1.The Invention is based on a fuel injection valve for Fuel injectors of internal combustion engines after the Preamble of claim 1.
Bei
einem bekannten Kraftstoffeinspritzventil (
Bei
einem ebenfalls bekannten Kraftstoffeinspritzventil (
Offenbarung der ErfindungDisclosure of the invention
Das erfindungsgemäße Kraftstoffeinspritzventil mit den Merkmalen des Anspruchs 1 hat den Vorteil, dass durch die Verlegung eines Form- und/oder Kraftschlusses zwischen Ventilgehäuse und Ventilsitzkörper an das vom Ventilsitz abgekehrte obere Ende des Ventilsitzkörpers bei der Festlegung des Ventilsitzkörpers im Ventilgehäuse eine radiale Pressung des Ventilsitzkörpers in der näheren Umgebung des Ventilsitzes vermieden wird und so die durch Schleifen erzeugte, sehr präzise Rundheit des Ventilsitzes, die für die Dichtheit des Kraftstoffeinspritzventils gefordert wird, nicht bei der Ventilmontage durch Pressung verzogen, beschädigt oder zerstört wird. Zugleich ist durch das Aufsetzen der Spritzlochscheibe auf den Ventilsitzkörper und axiale Verspannung im Ventilgehäuse die Spritzlochscheibe zentriert zur Ventilöffnung ausgerichtet und wird in einem einzigen Montagevorgang zusammen mit dem Ventilsitzkörper im Ventilgehäuse festgelegt. Ein zusätzlicher Montagevorgang für die Spritzlochscheibe, der je nach Art seiner Ausführung sich negativ auf die Rundheit des Ventilsitzes auswirken kann, unterbleibt. Anders als bei dem bekannten Kraftstoffeinspritzventil, bei dem die Dichtheit und Halterung des Ventilsitzkörpers im Ventilgehäuse gemeinsam durch ein Beschichtungsmaterial des Ventilsitzkörpers hergestellt wird, sind bei dem erfindungsgemäßen Kraftstoffeinspritzventil Dichtungsfunktion und Haltefunktion voneinander getrennt, wodurch eine Belastung der hydraulisch dichten Verbindung zwischen Ventilsitzkörper und Ventilgehäuse in Axialrichtung, die zu einem frühzeitigen Ermüden der dichtenden Verbindung und damit zur Funktionsbeeinträchtigung des Kraftstoffeinspritzventils führt, vermieden wird.The inventive fuel injection valve with The features of claim 1 has the advantage that by laying a positive and / or frictional connection between the valve housing and Valve seat body to the top facing away from the valve seat End of the valve seat body in the determination of the valve seat body in the valve housing a radial pressure of the valve seat body is avoided in the vicinity of the valve seat and so the very precise roundness produced by grinding Valve seat responsible for the tightness of the fuel injector is required, not distorted by pressure during valve assembly, damaged or destroyed. At the same time is through the placement of the spray perforated disk on the valve seat body and axial strain in the valve housing the spray hole disc centered aligned with the valve opening and is in a single Assembly process together with the valve seat body in the valve body established. An additional assembly process for the spray perforated disk, depending on the type of its execution can negatively affect the roundness of the valve seat, is omitted. Unlike the known fuel injection valve in which the tightness and mounting of the valve seat body in the valve housing together by a coating material of the valve seat body is prepared are in the inventive Fuel injection valve sealing function and holding function of each other separated, creating a load on the hydraulically sealed connection between valve seat body and valve housing in Axial direction, leading to premature fatigue the sealing connection and thus to functional impairment the fuel injection valve leads, is avoided.
Durch die in den weiteren Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Anspruch 1 angegebenen Kraftstoffeinspritzventils möglich.By the measures listed in the further claims are advantageous developments and improvements of the claim 1 specified fuel injection valve possible.
Gemäß einer vorteilhaften Ausführungsform der Erfindung ist auf dem der Spritzlochscheibe zugekehrten Ende des Ventilsitzkörpers ein umlaufender Zentrierabschnitt und die Spritzlochscheibe kappenförmig mit einem ebenen Kappenboden und einen Kappenrand ausgebildet. Die Spritzlochscheibe liegt mit ihrem Kappenboden an der Stirnfläche des Ventilsitzkörpers plan an und übergreift mit ihrem Kappenrand formschlüssig den Zentrierabschnitt. Durch diese konstruktive Maßnahme ist die Spritzlochscheibe mit ihren Spritzlöchern toleranzgenau zur Ventilöffnung im Ventilsitzkörper zentriert.According to one advantageous embodiment of the invention is on the the spray hole disc facing the end of the valve seat body a circumferential centering and the spray hole disc cap-shaped formed with a flat cap bottom and a cap edge. The Spray perforated disc lies with its cap bottom at the end face the valve seat body plan and engages with its cap edge form-fitting the centering. By this design measure is the spray hole disc with their injection holes tolerance to the valve opening centered in the valve seat body.
Gemäß einer vorteilhaften Ausführungsform der Erfindung ist der plastisch verformbare Bund zur Herstellung des Kraft- und/oder Formschlusses zwischen Ventilgehäuse und Ventilsitzkörper am Ventilgehäuse ein durch einen aus dem Ventilgehäuse ausgeprägten umlaufenden Wulst gebildet und in vorteilhafter Weise zusätzlich an dem oberen Ende des Ventilsitzkörpers eine Fase angearbeitet ist, mit der sich der Ventilsitzkörper zumindest teilweise an dem umlaufenden Wulst anpresst.According to an advantageous embodiment of the invention, the plastically deformable collar for producing the force and / or positive connection between the valve housing and the valve seat body on the valve housing by a from the valve housing formed pronounced circumferential bead and advantageously in addition to the upper end of the valve seat body a chamfer is worked, with which the valve seat body presses at least partially against the circumferential bead.
Ein vorteilhaftes Verfahren zur Montage des Kraftstoffeinspritzventils ist in Anspruch 9 angegeben.One advantageous method for mounting the fuel injection valve is specified in claim 9.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Die Erfindung ist anhand von in den Zeichnungen dargestellten Ausführungsbeispielen in der nachfolgenden Beschreibung näher erläutert. Es zeigen in schematischer Darstellung:The The invention is based on embodiments shown in the drawings explained in more detail in the following description. In a schematic representation:
Das
in
Das
Kraftstoffeinspritzventil weist ein topfförmiges Ventilgehäuse
Der
durch Schleifen mit präziser Rundheit hergestellte Ventilsitz
Zur
axialen Verspannung ist einerseits am Topfboden
Die
flüssigkeitsdichte Verbindung zwischen dem Ventilsitzkörper
An dem zunächst rohrförmigen Ventilgehäuse
At the first tubular valve housing
Das
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
- - EP 1108134 B1 [0002] - EP 1108134 B1 [0002]
- - DE 102005061424 A1 [0003] - DE 102005061424 A1 [0003]
- - DE 19744739 A1 [0013] DE 19744739 A1 [0013]
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710051584 DE102007051584A1 (en) | 2007-10-29 | 2007-10-29 | Fuel injection valve for fuel injection devices of internal combustion engines, has valve seat body that is axially braced against axial stop with additional spray hole washer by deformable plastic |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710051584 DE102007051584A1 (en) | 2007-10-29 | 2007-10-29 | Fuel injection valve for fuel injection devices of internal combustion engines, has valve seat body that is axially braced against axial stop with additional spray hole washer by deformable plastic |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007051584A1 true DE102007051584A1 (en) | 2009-04-30 |
Family
ID=40490288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200710051584 Withdrawn DE102007051584A1 (en) | 2007-10-29 | 2007-10-29 | Fuel injection valve for fuel injection devices of internal combustion engines, has valve seat body that is axially braced against axial stop with additional spray hole washer by deformable plastic |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007051584A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016058886A1 (en) * | 2014-10-15 | 2016-04-21 | Continental Automotive Gmbh | High-pressure fuel pump |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19744739A1 (en) | 1997-10-10 | 1999-04-15 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engine |
EP1108134B1 (en) | 1999-06-18 | 2004-12-29 | Robert Bosch Gmbh | Fuel injection valve |
DE102005061424A1 (en) | 2005-12-22 | 2007-07-05 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engine, has movable actuating part with valve seat body including saw-tooth structure at outer periphery to provide firm connection with valve seat carrier |
-
2007
- 2007-10-29 DE DE200710051584 patent/DE102007051584A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19744739A1 (en) | 1997-10-10 | 1999-04-15 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engine |
EP1108134B1 (en) | 1999-06-18 | 2004-12-29 | Robert Bosch Gmbh | Fuel injection valve |
DE102005061424A1 (en) | 2005-12-22 | 2007-07-05 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engine, has movable actuating part with valve seat body including saw-tooth structure at outer periphery to provide firm connection with valve seat carrier |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016058886A1 (en) * | 2014-10-15 | 2016-04-21 | Continental Automotive Gmbh | High-pressure fuel pump |
US10330066B2 (en) | 2014-10-15 | 2019-06-25 | Continental Automotive Gmbh | High-pressure fuel pump |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R084 | Declaration of willingness to licence |
Effective date: 20120327 |
|
R012 | Request for examination validly filed |
Effective date: 20140709 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |