DE102011006500A1 - Device for measuring amount of injection of fuel from fuel distributor into e.g. suction pipe of internal combustion engine, has force element arranged in cup and engaged with sealing ring by axial force that is directed toward face surface - Google Patents
Device for measuring amount of injection of fuel from fuel distributor into e.g. suction pipe of internal combustion engine, has force element arranged in cup and engaged with sealing ring by axial force that is directed toward face surface Download PDFInfo
- Publication number
- DE102011006500A1 DE102011006500A1 DE102011006500A DE102011006500A DE102011006500A1 DE 102011006500 A1 DE102011006500 A1 DE 102011006500A1 DE 102011006500 A DE102011006500 A DE 102011006500A DE 102011006500 A DE102011006500 A DE 102011006500A DE 102011006500 A1 DE102011006500 A1 DE 102011006500A1
- Authority
- DE
- Germany
- Prior art keywords
- cup
- sealing ring
- valve
- inlet
- force element
- 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- Withdrawn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
- 238000007789 sealing Methods 0.000 title claims abstract description 34
- 239000000446 fuel Substances 0.000 title claims abstract description 21
- 238000002347 injection Methods 0.000 title claims abstract description 12
- 239000007924 injection Substances 0.000 title claims abstract description 12
- 238000002485 combustion reaction Methods 0.000 title description 7
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000001125 extrusion Methods 0.000 claims description 21
- 239000006223 plastic coating Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 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
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
-
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/004—Joints; Sealings
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
- F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
-
- 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
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/853—Mounting of fuel injection apparatus involving use of quick-acting mechanism, e.g. clips
-
- 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
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/856—Mounting of fuel injection apparatus characterised by mounting injector to fuel or common rail, or vice versa
Abstract
Description
Stand der TechnikState of the art
Die Erfindung geht aus von einer Vorrichtung zum Zumessen eines Mediums, insbesondere zum Einspritzen eines Fluids, nach dem Oberbegriff des Anspruchs 1.The invention relates to a device for metering a medium, in particular for injecting a fluid, according to the preamble of claim 1.
Bei einer bekannten Vorrichtung zum Zumessen von Kraftstoff in einer Kraftstoffeinspritzanlage einer Brennkraftmaschine (
Ein bekanntes elektromagnetisch betätigtes Kraftstoffeinspritzventil (
Offenbarung der ErfindungDisclosure of the invention
Die erfindungsgemäße Vorrichtung zum Zumessen eines Mediums mit den Merkmalen des Anspruchs 1 hat den Vorteil, eine Abdichtung des einlassseitigen Leckpfades zwischen Gehäuse und Kunststoffumspritzung des Ventils in fertigungstechnisch kostengünstiger Weise ohne konstruktive Änderungen des bestehenden Designs des Ventils, wie sie das Einspritzen einer einlassseitigen Dichtung in die Kunststoffumspritzung darstellt, zu erzielen. Die Abdichtung wird selbsttätig bei der Ventilmontage durch ein vor dem Einspritzen des Ventils in die Tasse des Anschlussorgans eingelegtes Kraftelement bewirkt. Das Kraftelement, als das z. B. eine einfache Schraubendruckfeder eingesetzt werden kann, presst den Dichtungsring axial auf die Stirnfläche der Kunststoffumspritzung, wodurch der Dichtungsring den Leckpfad zuverlässig abdichtet.The inventive device for metering a medium with the features of claim 1 has the advantage of sealing the inlet-side leak path between the housing and plastic extrusion of the valve in a cost-effectively manufacturing manner without constructive changes to the existing design of the valve, such as the injection of an inlet-side seal in the Plastic injection represents to achieve. The sealing is effected automatically during valve assembly by a force element inserted in the cup of the connecting element before the valve is injected. The force element, as the z. B. a simple helical compression spring can be used, the sealing ring presses axially on the end face of the plastic extrusion, whereby the sealing ring reliably seals the leak path.
Durch die in den weiteren Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der im Anspruch 1 angegebenen Vorrichtung möglich.The measures listed in the further claims advantageous refinements and improvements of claim 1 device are possible.
Gemäß einer vorteilhaften Ausführungsform der Erfindung weist die Tasse einen Tassenboden mit einer zentralen Bodenöffnung, an dem sich das Kraftelement abstützt, und einen Tassenzylinder auf, dessen lichter Durchmesser auf den Außendurchmesser des unverformten Dichtungsrings abgestimmt ist. Zwischen Kraftelement und Dichtungsring ist eine Ringscheibe angeordnet. Durch die Ringscheibe wird eine gleichmäßige Kraftübertragung vom Kraftelement in den Dichtungsring und ein Schutz des Dichtungsrings gegen Beschädigung durch das Kraftelement erreicht. Dadurch, dass der Innendurchmesser der Ringscheibe kleiner gewählt wird als ein am Stirnende des Gehäuseabschnitts ausgebildeter Ringflansch, ist die Ringscheibe unverlierbar mit dem Ventil verbunden und erfordert keine zusätzliche Handhabung bei der Montage der Vorrichtung.According to an advantageous embodiment of the invention, the cup has a cup bottom with a central bottom opening, on which the force element is supported, and a cup cylinder whose light diameter is matched to the outside diameter of the undeformed sealing ring. Between force element and sealing ring an annular disc is arranged. By the annular disc a uniform force transmission from the force element in the sealing ring and a protection of the sealing ring against damage is achieved by the force element. Characterized in that the inner diameter of the annular disc is selected to be smaller than an annular flange formed at the front end of the housing section, the annular disc is captively connected to the valve and requires no additional handling during assembly of the device.
Gemäß einer vorteilhaften Ausführungsform der Erfindung weist die Stirnfläche der Kunststoffumspritzung einen inneren, rechtwinklig zur Ventilachse sich erstreckenden Flächenbereich und einen gegenüber diesem nach außen schräg abfallenden äußeren Flächenbereich sowie einen zwischen den beiden Flächenbereichen vorzugsweise mittig in der Stirnfläche verlaufende Übergangskante auf. Diese Übergangskante erhöht die Flächenpressung und verbessert damit die Dichtwirkung des Dichtungsrings. Zusätzlich ergibt sich ein vorteilhafter Fertigungsaspekt durch eine verbesserte Entformbarkeit der Kunststoffumspritzung aus dem Spritzwerkzeug.According to an advantageous embodiment of the invention, the end face of the plastic extrusion has an inner surface area extending at right angles to the valve axis and an outer surface area sloping outwardly therefrom, and a transitional edge extending preferably centrally in the end area between the two surface areas. This transitional edge increases the surface pressure and thus improves the sealing effect of the sealing ring. In addition, there is an advantageous manufacturing aspect by improved demolding of the plastic extrusion from the injection mold.
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 invention is explained in more detail in the following description with reference to exemplary embodiments illustrated in the drawings. Show it:
Die in
Die Vorrichtung weist ein Ventil
In den beschriebenen Ausführungsbeispielen der Vorrichtung umfasst das in
Der Dichtungsring
In dem Ausführungsbeispiel der
Bei Einsatz der Vorrichtung zum Dossierzwecken, z. B. zum Zumessen einer Harnstoff-Wasser-Lösung in das Abgas einer Brennkraftmaschine, kann das Anschlussorgan
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES 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 of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- US 6371083 B1 [0002, 0014] US 6371083 B1 [0002, 0014]
- DE 19512339 B4 [0003] DE 19512339 B4 [0003]
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011006500A DE102011006500A1 (en) | 2011-03-31 | 2011-03-31 | Device for measuring amount of injection of fuel from fuel distributor into e.g. suction pipe of internal combustion engine, has force element arranged in cup and engaged with sealing ring by axial force that is directed toward face surface |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011006500A DE102011006500A1 (en) | 2011-03-31 | 2011-03-31 | Device for measuring amount of injection of fuel from fuel distributor into e.g. suction pipe of internal combustion engine, has force element arranged in cup and engaged with sealing ring by axial force that is directed toward face surface |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102011006500A1 true DE102011006500A1 (en) | 2012-10-04 |
Family
ID=46844782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102011006500A Withdrawn DE102011006500A1 (en) | 2011-03-31 | 2011-03-31 | Device for measuring amount of injection of fuel from fuel distributor into e.g. suction pipe of internal combustion engine, has force element arranged in cup and engaged with sealing ring by axial force that is directed toward face surface |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102011006500A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013083522A1 (en) * | 2011-12-08 | 2013-06-13 | Robert Bosch Gmbh | Injection valve, in particular for an internal combustion engine |
WO2018001815A1 (en) * | 2016-06-30 | 2018-01-04 | Robert Bosch Gmbh | Valve for metering a fluid, connection piece for a valve, and fuel injection system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6371083B1 (en) | 2000-11-20 | 2002-04-16 | Robert Bosch Corporation | Self-damping manifold |
DE19512339B4 (en) | 1995-04-01 | 2010-06-10 | Robert Bosch Gmbh | Electromagnetically actuated fuel injection valve |
-
2011
- 2011-03-31 DE DE102011006500A patent/DE102011006500A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19512339B4 (en) | 1995-04-01 | 2010-06-10 | Robert Bosch Gmbh | Electromagnetically actuated fuel injection valve |
US6371083B1 (en) | 2000-11-20 | 2002-04-16 | Robert Bosch Corporation | Self-damping manifold |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013083522A1 (en) * | 2011-12-08 | 2013-06-13 | Robert Bosch Gmbh | Injection valve, in particular for an internal combustion engine |
WO2018001815A1 (en) * | 2016-06-30 | 2018-01-04 | Robert Bosch Gmbh | Valve for metering a fluid, connection piece for a valve, and fuel injection system |
CN109642529A (en) * | 2016-06-30 | 2019-04-16 | 罗伯特·博世有限公司 | Attachment and fuel injection apparatus for measuring the valve of fluid, for valve |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed | ||
R016 | Response to examination communication | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |