DE102008048173A1 - decoupling element - Google Patents
decoupling element Download PDFInfo
- Publication number
- DE102008048173A1 DE102008048173A1 DE102008048173A DE102008048173A DE102008048173A1 DE 102008048173 A1 DE102008048173 A1 DE 102008048173A1 DE 102008048173 A DE102008048173 A DE 102008048173A DE 102008048173 A DE102008048173 A DE 102008048173A DE 102008048173 A1 DE102008048173 A1 DE 102008048173A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel injector
- decoupling element
- annular
- guide bore
- shell
- 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- Withdrawn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 claims abstract description 44
- 239000002184 metal Substances 0.000 claims abstract description 37
- 238000002485 combustion reaction Methods 0.000 claims abstract description 6
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000000806 elastomer Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 238000013016 damping Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000463 material Substances 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
- 239000004744 fabric Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000243 solution Substances 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
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of 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
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/858—Mounting of fuel injection apparatus sealing arrangements between injector and engine
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
Die Erfindung betrifft ein Entkopplungselement (1) für einen Kraftstoffinjektor (2) in einer Führungsbohrung (3) eines Zylinderkopfs (4) einer Brennkraftmaschine mit einem zur koaxialen Anlage in der Führungsbohrung (3) und am Kraftstoffinjektor (2) vorgesehenen ringförmigen Metallkissen (5) und zwei jeweils schalen- und ringförmigen Gehäuseteilen (6, 7), zwischen denen das Metallkissen (5) eingefasst ist. Ein ringförmige Dichtung (11) ist koaxial zur Führungsbohrung (3) vorgesehen und in das Metallkissen (5) integriert oder an mindestens einem der schalen- und ringförmigen Gehäuseteile (6, 7) befestigt.The invention relates to a decoupling element (1) for a fuel injector (2) in a guide bore (3) of a cylinder head (4) of an internal combustion engine with an annular metal cushion (5) provided for coaxial engagement in the guide bore (3) and on the fuel injector (2). and two respective shell and annular housing parts (6, 7), between which the metal cushion (5) is enclosed. An annular seal (11) is provided coaxially with the guide bore (3) and integrated into the metal pad (5) or attached to at least one of the shell and annular housing parts (6, 7).
Description
Die Erfindung betrifft ein Entkopplungselement für einen Kraftstoffinjektor in einer Führungsbohrung eines Zylinderkopfs einer Brennkraftmaschine.The The invention relates to a decoupling element for a fuel injector in a guide bore of a cylinder head of an internal combustion engine.
Die
Aufgabe der Erfindung ist es, ein Entkopplungselement für einen Kraftstoffinjektor in einer Führungsbohrung zu schaffen, das den Kraftstoffinjektor dichtend in der Führungsbohrung hält und verbessert Geräusche reduziert.task The invention is a decoupling element for a To create fuel injector in a pilot hole this sealing the fuel injector in the guide bore keeps and improves noise reduced.
Die Lösung erfolgt mit einem Entkopplungselement für einen Kraftstoffinjektor mit den Merkmalen des Anspruchs 1.The Solution is done with a decoupling element for a fuel injector having the features of claim 1.
Gemäß der Erfindung weist das Entkopplungselement für einen Kraftstoffinjektor in einer Führungsbohrung eines Zylinderkopfs oder -blocks einer Brennkraftmaschine ein zur koaxialen Anlage in der Führungsbohrung und am Kraftstoffinjektor vorgesehenes ringförmiges Metallkissen auf und zwei jeweils schalen- und ringförmigen Gehäuseteilen aus Metall, insbesondere Blech oder Kunststoff als Außen- und Innenring, zwischen denen das Metallkissen eingefasst ist. Eine ringförmige Dichtung ist koaxial zur Führungsbohrung in das Metallkissen integriert oder an mindestens einer der schalen- und ringförmigen Gehäuseteile des Entkopplungselements befestigt für eine in das Entkopplungselement integrierte Dämpfungs- und Dichtfunktion, insbesondere für Diesel-Direkteinspritzer.According to the Invention has the decoupling element for a fuel injector in a guide bore of a cylinder head or block an internal combustion engine to a coaxial system in the guide bore and provided on the fuel injector annular metal cushion on and two respective shell and annular housing parts of metal, in particular sheet metal or plastic as external and inner ring, between which the metal cushion is bordered. A annular seal is coaxial with the guide bore integrated into the metal cushion or on at least one of the shell and annular housing parts of the decoupling element fastened to a damping device integrated into the decoupling element and sealing function, especially for diesel direct injection.
Gemäß einer bevorzugten Ausgestaltung der Erfindung ist das Metallkissen als Ganzmetallkissen ausgebildet für verbesserte Geräuschreduktion.According to one preferred embodiment of the invention, the metal cushion as All-metal cushion designed for improved noise reduction.
Gemäß einer weiteren bevorzugten Ausgestaltung der Erfindung ist die ringförmige Dichtung aus Elastomer für verbesserte Dichtigkeit.According to one Another preferred embodiment of the invention is the annular Seal made of elastomer for improved tightness.
Gemäß einer weiteren bevorzugten Ausgestaltung der Erfindung besteht die ringförmige Dichtung aus einem aus komprimiertem Drahtgestrick gefertigten und mit Graphit getränkten Metallkissen, das in das Entkopplungselement integriert ist für zuverlässige Dämpfungs- und Dichtfunktion bei erhöhten Drücken bis 160 bar und erhöhten Temperaturen bis 900°C.According to one Another preferred embodiment of the invention, the annular Seal made of a compressed knitted wire fabric and with graphite impregnated metal pad, which in the decoupling element is integrated for reliable damping and sealing function at elevated pressures up to 160 bar and elevated temperatures up to 900 ° C.
Gemäß einer weiteren bevorzugten Ausgestaltung der Erfindung ist die ringförmige Dichtung auf den Außenring des Entkopplungselements aufgesteckt oder vulkanisiert.According to one Another preferred embodiment of the invention is the annular Seal fitted on the outer ring of the decoupling element or vulcanized.
Gemäß einer weiteren bevorzugten Ausgestaltung der Erfindung ist die ringförmige Dichtung als O-, D- oder X-Ring ausgebildet.According to one Another preferred embodiment of the invention is the annular Seal designed as O, D or X ring.
Gemäß einer weiteren bevorzugten Ausgestaltung der Erfindung liegt die ringförmige Dichtung flächig am freien Ende des schalen- und ringförmigen Gehäuseteils und am Kraftstoffinjektor an und auf der Auflagefläche der Führungsbohrung auf, so dass ohne Erweitern der Führungsbohrung durch z. B. Aufbohren Dichtungen mit relativ großen Querschnitten verwandt werden können an dem kleinen Spalt von ca. 0,4 mm zwischen Kraftstoffinjektor und Führungsbohrung.According to one Another preferred embodiment of the invention is the annular Seal surface at the free end of the shell and annular housing part and on the fuel injector on and on the support surface the guide hole on, so without widening the guide hole by z. B. Drill gaskets with relatively large cross-sections can be used at the small gap of about 0.4 mm between fuel injector and pilot hole.
Die Erfindung wird im Folgenden anhand bevorzugter Ausführungsbeispiele dargestellt. Es zeigen:The Invention will be described below with reference to preferred embodiments shown. Show it:
Die
rechts der Längsachse I-I dargestellte zweite Variante
des Entkopplungselements
Die
rechts der Längsachse I-I dargestellte vierte Variante
des Entkopplungselements
Die
rechts der Längsachse I-I dargestellte sechste Variante
des Entkopplungselements
Die
rechts der Längsachse I-I dargestellte achte Variante des
Entkopplungselements
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 102006009094 A1 [0002] - DE 102006009094 A1 [0002]
Claims (7)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008048173A DE102008048173A1 (en) | 2008-09-20 | 2008-09-20 | decoupling element |
| EP20090170825 EP2166219B1 (en) | 2008-09-20 | 2009-09-21 | Decoupling element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008048173A DE102008048173A1 (en) | 2008-09-20 | 2008-09-20 | decoupling element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102008048173A1 true DE102008048173A1 (en) | 2010-04-08 |
Family
ID=41571865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102008048173A Withdrawn DE102008048173A1 (en) | 2008-09-20 | 2008-09-20 | decoupling element |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2166219B1 (en) |
| DE (1) | DE102008048173A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2405126A1 (en) | 2010-07-09 | 2012-01-11 | Stop-Choc Schwingungstechnik GmbH & Co. KG | Decoupling element with sealing function |
| DE102012206194A1 (en) | 2012-04-16 | 2013-10-17 | Robert Bosch Gmbh | Multi-part insulation element, in particular for a fuel injection device |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2954963A1 (en) * | 2010-01-06 | 2011-07-08 | Peugeot Citroen Automobiles Sa | Vibration dampener for fuel injector of e.g. diesel engine of i.e. car, has liner cooperating with another liner to improve dissipation of vibrations in frequential domain and/or to dissipate vibrations in another given frequential domain |
| JP5270714B2 (en) * | 2011-04-27 | 2013-08-21 | トヨタ自動車株式会社 | Damping insulator for fuel injection valve |
| US9303447B1 (en) | 2012-05-15 | 2016-04-05 | Aviation Devices & Electronic Components LLC | Elastomeric gasket for fuel access door of an aircraft wing and a method for making the same |
| US9751244B2 (en) | 2012-05-15 | 2017-09-05 | The Patent Well LLC | Elastomeric gasket for fuel access door of an aircraft wing and a method for making the same |
| WO2016164803A1 (en) | 2015-04-08 | 2016-10-13 | Aviation Devices & Electronic Components, L.L.C. | A metal mesh with a low electrical resistance conversion coating for use with aircraft structures |
| CN107299872A (en) * | 2017-06-21 | 2017-10-27 | 重庆长安汽车股份有限公司 | A kind of fuel injector support ring of effective reduction gasoline direct injection engine operating noise |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006009094A1 (en) | 2006-02-28 | 2007-08-30 | Bayerische Motoren Werke Ag | Damper for use between cylinder head and injector in region of injector foot, has sub-functional section e.g. inner ring and outer ring, for fixing injector with respect to cylinder head, where damper is formed as multipart structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3695235A (en) * | 1970-08-26 | 1972-10-03 | Mcculloch Corp | Heat seal for fuel injection nozzles |
| US6866026B2 (en) | 2002-08-28 | 2005-03-15 | Federal-Mogul World Wide, Inc. | Gasket for fuel injector |
| DE102004060462A1 (en) * | 2004-12-16 | 2006-03-23 | Daimlerchrysler Ag | Fuel injection device for internal combustion engine has damping elements of metal foam accommodated at respective connecting points between injector and cylinder head and between fuel rail and injector |
| US7591246B2 (en) * | 2006-01-17 | 2009-09-22 | Gm Global Technology Operations, Inc. | Isolated fuel delivery system |
-
2008
- 2008-09-20 DE DE102008048173A patent/DE102008048173A1/en not_active Withdrawn
-
2009
- 2009-09-21 EP EP20090170825 patent/EP2166219B1/en not_active Not-in-force
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006009094A1 (en) | 2006-02-28 | 2007-08-30 | Bayerische Motoren Werke Ag | Damper for use between cylinder head and injector in region of injector foot, has sub-functional section e.g. inner ring and outer ring, for fixing injector with respect to cylinder head, where damper is formed as multipart structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2405126A1 (en) | 2010-07-09 | 2012-01-11 | Stop-Choc Schwingungstechnik GmbH & Co. KG | Decoupling element with sealing function |
| DE102012206194A1 (en) | 2012-04-16 | 2013-10-17 | Robert Bosch Gmbh | Multi-part insulation element, in particular for a fuel injection device |
| WO2013156258A1 (en) | 2012-04-16 | 2013-10-24 | Robert Bosch Gmbh | Multipart insulating element, in particular for a fuel injection device |
| CN104471234A (en) * | 2012-04-16 | 2015-03-25 | 罗伯特·博世有限公司 | Multipart insulating element, in particular for a fuel injection device |
| US10648438B2 (en) | 2012-04-16 | 2020-05-12 | Robert Bosch Gmbh | Multipart insulating element, in particular for a fuel injection device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2166219B1 (en) | 2012-06-27 |
| EP2166219A1 (en) | 2010-03-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ON | Later submitted papers | ||
| OP8 | Request for examination as to paragraph 44 patent law | ||
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20130403 |