DE102007051585A1 - Fuel injecting valve for internal-combustion engine of motor vehicle, has valve seat body fixed in housing, where radially abutted regions of body and housing are separated by intermediate layer made of elastically compressible material - Google Patents
Fuel injecting valve for internal-combustion engine of motor vehicle, has valve seat body fixed in housing, where radially abutted regions of body and housing are separated by intermediate layer made of elastically compressible material Download PDFInfo
- Publication number
- DE102007051585A1 DE102007051585A1 DE200710051585 DE102007051585A DE102007051585A1 DE 102007051585 A1 DE102007051585 A1 DE 102007051585A1 DE 200710051585 DE200710051585 DE 200710051585 DE 102007051585 A DE102007051585 A DE 102007051585A DE 102007051585 A1 DE102007051585 A1 DE 102007051585A1
- Authority
- DE
- Germany
- Prior art keywords
- valve
- valve seat
- seat body
- housing
- fuel injection
- 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- Withdrawn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
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/166—Selection of particular materials
-
- 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
-
- 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
- F02M2200/09—Fuel-injection apparatus having means for reducing noise
-
- 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
- F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
- F02M2200/306—Fuel-injection apparatus having mechanical parts, the movement of which is damped using mechanical means
-
- 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
- F02M2200/90—Selection of particular materials
- F02M2200/9015—Elastomeric or plastic materials
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
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 (
Offenbarung der ErfindungDisclosure of the invention
Das erfindungsgemäße Kraftstoffeinspritzventil mit den Merkmalen des Anspruchs 1 hat den Vorteil, dass durch die Zwischenlage aus elastisch kompressiblem Material einerseits eine feste und hydraulisch dichte Verbindung zwischen Ventilgehäuse und Ventilsitzkörper hergestellt wird, ohne dass radiale Presskräfte an dem Ventilsitz auftreten, die die durch Schleifen erzeugte sehr genaue Rundheit des Ventilsitzes nachteilig beeinflussen, und andererseits zugleich der durch das Auftreffen des Schließkörpers auf dem Ventilsitz am Ventilkörper entstehende Körperschall nur stark gedämpft auf das Ventilgehäuse übertragen wird. Die Kraftstoffeinspritzvorrichtung arbeitet dadurch deutlich geräuschärmer.The inventive fuel injection valve with The features of claim 1 has the advantage that by the intermediate layer made of elastically compressible material on the one hand a fixed and hydraulic tight connection between valve body and valve seat body is produced without radial pressing forces on the Valve seat occur, which produces the very accurate generated by grinding Affect roundness of the valve seat adversely, and on the other hand at the same time by the impact of the closing body structure-borne noise arising at the valve seat on the valve body only heavily damped transferred to the valve body becomes. The fuel injection device works as a result quieter.
Durch die in den weiteren Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Anspruch 1 angegebenen Verbrennungsmotors möglich.By the measures listed in the further claims are advantageous developments and improvements of the claim 1 specified internal combustion engine possible.
Gemäß einer bevorzugten Ausführungsform der Erfindung ist der Ventilsitzkörper über eine an seiner Stirnfläche anliegende Spritzlochscheibe an einem im Ventilgehäuse ausgebildeten Axialanschlag angelegt. Die über die elastische Zwischenlage radial aneinanderliegenden Bereiche von Ventilgehäuse und Ventilsitzkörper sind ausschließlich an dem von der Spritzlochscheibe abgekehrten oberen Ende des Ventilsitzkörpers vorhanden, und die Zwischenlage ist so ausgebildet, dass Ventilsitzkörper und Spritzlochscheibe über die elastische Zwischenlage im Gehäuse axial verspannt sind, wobei die axiale Verspannung dabei vorzugsweise durch einen zwischen Gehäuse und elastischer Zwischenlage vorhandenen Presssitz hergestellt wird. Auf diese Weise wird die Zwischenlage zugleich zur Befestigung des Ventilsitzkörpers im Ventilgehäuse herangezogen und über die elastische Zwischenlage eine ausreichende Anpresskraft des Ventilsitzkörpers an dem Axialanschlag des Ventilgehäuses erzeugt. Zugleich wird die Spritzlochscheibe sehr genau positioniert und festgelegt, ohne dass es eines zusätzlichen Montagevorgangs bedarf.According to one preferred embodiment of the invention is the valve seat body via a fitting on his face spray hole disc applied to an axial stop formed in the valve housing. The radially overlying the elastic intermediate layer Areas of valve housing and valve seat body are only on the side facing away from the spray perforated disc upper end of the valve seat body, and the intermediate layer is designed so that valve seat body and spray hole disc over the elastic intermediate layer axially braced in the housing are, wherein the axial strain in this case preferably by a existing between housing and elastic intermediate layer Press fit is produced. In this way, the liner will at the same time for fastening the valve seat body in the valve housing used and on the elastic intermediate layer a sufficient contact pressure of the valve seat body on the Axial stop of the valve body generates. At the same time the spray hole disc very accurately positioned and fixed, without that it requires an additional assembly process.
Gemäß einer vorteilhaften Ausführungsform der Erfindung wird der Presssitz mittels eines am Ventilgehäuse nach innen abstehenden, plastisch verformbaren, ringförmigen Vorsprungs hergestellt, der z. B. durch Ausprägen eines Nockens aus dem Ventilgehäuse realisiert wird und an den sich die elastische Zwischenlage radial und axial anpresst.According to one advantageous embodiment of the invention, the press fit by means of a valve housing on the inside, plastically deformable, annular projection made, the z. B. by punching out a cam from the valve housing is realized and to which the elastic intermediate layer radially and pressed axially.
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:The The invention is based on embodiments shown in the drawings explained in more detail in the following description. Show it:
Das
in
Das
Kraftstoffeinspritzventil weist ein topfförmiges Ventilgehäuse
Zur
Festlegung des Ventilsitzkörpers 13 im Ventilgehäuse
Die
Spritzlochscheibe
Zur
Justierung des Ventilhubs, also des maximalen Hubs der Ventilnadel
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 19744739 A1 [0009] - DE 19744739 A1 [0009]
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710051585 DE102007051585A1 (en) | 2007-10-29 | 2007-10-29 | Fuel injecting valve for internal-combustion engine of motor vehicle, has valve seat body fixed in housing, where radially abutted regions of body and housing are separated by intermediate layer made of elastically compressible material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710051585 DE102007051585A1 (en) | 2007-10-29 | 2007-10-29 | Fuel injecting valve for internal-combustion engine of motor vehicle, has valve seat body fixed in housing, where radially abutted regions of body and housing are separated by intermediate layer made of elastically compressible material |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007051585A1 true DE102007051585A1 (en) | 2009-04-30 |
Family
ID=40490289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200710051585 Withdrawn DE102007051585A1 (en) | 2007-10-29 | 2007-10-29 | Fuel injecting valve for internal-combustion engine of motor vehicle, has valve seat body fixed in housing, where radially abutted regions of body and housing are separated by intermediate layer made of elastically compressible material |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007051585A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019129412A1 (en) * | 2017-12-29 | 2019-07-04 | Robert Bosch Gmbh | Valve for metering a fluid, particularly a fuel injection valve |
Citations (2)
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 |
-
2007
- 2007-10-29 DE DE200710051585 patent/DE102007051585A1/en not_active Withdrawn
Patent Citations (2)
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 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019129412A1 (en) * | 2017-12-29 | 2019-07-04 | Robert Bosch Gmbh | Valve for metering a fluid, particularly a fuel injection valve |
US11092125B2 (en) | 2017-12-29 | 2021-08-17 | Robert Bosch Gmbh | Valve for metering a fluid, in particular, a fuel injector |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20130501 |