EP1366284B1 - Dispositif d'etancheite pour soupape d'injection de carburant - Google Patents
Dispositif d'etancheite pour soupape d'injection de carburant Download PDFInfo
- Publication number
- EP1366284B1 EP1366284B1 EP02712799A EP02712799A EP1366284B1 EP 1366284 B1 EP1366284 B1 EP 1366284B1 EP 02712799 A EP02712799 A EP 02712799A EP 02712799 A EP02712799 A EP 02712799A EP 1366284 B1 EP1366284 B1 EP 1366284B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing
- fuel injection
- injection valve
- sleeve
- sealing device
- 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.)
- Expired - Lifetime
Links
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
- 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
- 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
Definitions
- the invention is based on a fuel injector with a sealing device according to the Genus of the main claim.
- a disadvantage of the known from DE 197 35 665 A1 Fuel injection system is that to adapt to changed installation geometries in the cylinder head Geometry of the fuel injector can be changed got to.
- the seal acting in the radial direction requires a high degree of positional accuracy of the location bore and the External geometry of the fuel injector to each other.
- the fuel injector according to the invention has a sealing device the characteristic of the main claim the advantage that adapting to different geometries is easy and the interface of the fuel injector to the adjacent component remains unchanged.
- the sealing sleeve Due to the sealing surface formed in the axial direction the sealing sleeve is an easy machining of the corresponding surface of the cylinder head possible. As well is advantageous the possibility of the surface pressure on the to influence the axial sealing surface, thereby Impact component tolerances to a lesser extent.
- the elastic sealing sleeve is also suitable, location and Compensate for angular tolerances.
- the intermediate sleeve for generating the is also advantageous axial force on the sealing sleeve, which with a inexpensive component the outer geometry of the Fuel injector changed in a wide range can be.
- FIG. 1 A first embodiment is shown in FIG. 1.
- a fuel injector 1 against a cylinder head 2 of a direct injection Internal combustion engine is fuel injector 1 with a radially sealing sealing element 3 against one Sealing sleeve 4 sealed.
- the sealing sleeve 4 is one Intermediate sleeve 13 in the axial direction with a force pressurized to form a sealing Surface pressure between the sealing sleeve 4 and the Cylinder head 2 leads.
- the Cylinder head 2 has a receiving opening 6 in the direction one shoulder of the combustion chamber of the internal combustion engine has as a contact surface 7 for the sealing sleeve 4th is trained.
- the fuel injector 1 has at its downstream end of a cylindrical nozzle body 8 in which a circumferential groove for receiving the Sealing element 3 is introduced.
- the sealing sleeve 4 has a hollow cylindrical section 9, the inner radial extent with the radial extent of the Sealing element 3 corresponds, so that the sealing sleeve 4 with the sealing element 3 produces a sealing press connection.
- On the upstream side of the sealing sleeve 4 is one collar-shaped extension 10 arranged, the outer radial expansion is greater than the inner radial Expansion of the shoulder in the receiving opening 6 of the Cylinder head 2.
- the collar-shaped extension 10 has an in upstream direction formed arch 11. To the curvature 11 goes into a oppositely directed second curvature over which downstream side has an axial sealing surface 12 is arranged.
- the axial sealing surface 12 forms with the Contact surface 7 of the receiving opening 6 from a sealing seat.
- the sealing sleeve 4 is also on the Nozzle body 8 of fuel injector 1 slide-on intermediate sleeve 13 onto the contact surface 7 pressed.
- a pressing surface 14 is formed at the downstream end of the intermediate sleeve 13 . It arises through flipping the downstream end of the intermediate sleeve 13 between the outer radial extent of the Intermediate sleeve 13 and the inner radial extent, the approximately the maximum radial extent of the Sealing element 3 corresponds.
- the intermediate sleeve 13 is supported on a circumferential one Inclined shoulder 15 of the fuel injector 1. there the intermediate sleeve 13 via a housing part 16 of the Fuel injector 1 pushed.
- the axial and radial expansion of the circumferential curvature 11 the sealing sleeve 4 are so large that the curvature 11 the pressing surface 14 formed by the intermediate sleeve 13 supported.
- the curvature 11 of the sealing sleeve 4 is shaped that the axial sealing surface 12 is the only contact surface of the Sealing sleeve 4 with the contact surface 7 of the receiving opening 6 is.
- the intermediate sleeve 13 transmits at least part of the axial force by a not shown Fasteners on fuel injector 1 is exercised on the curvature 11 of the sealing sleeve 4 and thus on the axial sealing surface 12.
- the axial distance between the downstream side of the Flange 5 and the sealing surface of the sealing sleeve 4 in unloaded condition is greater than the distance of each corresponding contact surface, so that when mounting the Fuel injector 1 in the cylinder head 2 always a voltage is built up in the sealing sleeve 4, which the sealing surface pressure of the sealing surface 12 on the Contact surface 7 generated.
- the intermediate sleeve 13 is first on the Fuel injector 1 pushed on. Following is the sealing sleeve 4 on the fuel injector 1 pushed, whereby the intermediate sleeve 13 on the Fuel injector 1 is held.
- the for Establishing an adequate sealing effect between the Sealing element 3 and the sealing sleeve 4 trained forces are large enough to the sealing sleeve 4 as an assembly aid Insert the fuel injector 1 to use can.
- FIG. 2 A second embodiment with a modified form the intermediate sleeve 13 is shown in Fig. 2.
- the Intermediate sleeve 13 is shortened and includes the Housing part 16 of fuel injector 1 is not, but is supported on its downstream side. Due to the shortened design of the intermediate sleeve 13 is a improved heat dissipation possible.
- the direct connection of the sealing sleeve 4 to the nozzle body 8 as well as the cylinder head 2 ensures the operation of the Internal combustion engine for good heat dissipation in the Cylinder head 2.
- the sealing sleeve 4 is preferably made of resilient, low-alloy stainless steel, resilient CuSn6 or CuBe2 manufactured. With the choice of used Material can be an adaptation of the sealing sleeve 4th with regard to the mechanical properties and the Corrosion resistance and heat dissipation to the achieve the appropriate application.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Claims (6)
- Injecteur de carburant muni d'un dispositif d'étanchéité servant à étanchéifier le joint entre l'injecteur de carburant (1) et une culasse (2) dans une installation d'injection de carburant d'un moteur à combustion interne, dans lequel l'injecteur de carburant (1) présente un corps de buse (8) contre lequel est disposé un élément d'étanchéité (3) qui présente une surface d'étanchéité orientée radialement vers l'extérieur
caractérisé en ce qu'
il est prévu une douille d'étanchéité (4) emboítée sur l'élément d'étanchéité (3) et qui présente un élargissement (10) en forme de collerette possédant une surface d'étanchéité (12) orientée dans la direction axiale, qui peut être mise en contact à joint étanche avec une surface de contact (7) prévue dans la culasse (2). - Injecteur de carburant muni d'un dispositif d'étanchéité selon la revendication 1,
caractérisé en ce que
la surface d'étanchéité (12) formée axialement est disposée contre la périphérie extérieure de l'élargissement (10) en forme de collerette. - Injecteur de carburant muni d'un dispositif d'étanchéité selon la revendication 1 ou 2,
caractérisé en ce que
l'élargissement (10) en forme de collerette présente un bombement périphérique (11) orienté en sens inverse du côté éloigné de la surface d'étanchéité (12) formée axialement. - Injecteur de carburant muni d'un dispositif d'étanchéité selon la revendication 3,
caractérisé en ce que,
sous l'effet d'une sollicitation du bombement périphérique (11) de la douille d'étanchéité (4) par une force exercée dans la direction axiale, la douille d'étanchéité (4) peut se déformer élastiquement et la tension produit la pression superficielle de la surface d'étanchéité (12) qui établit l'étanchéité. - Injecteur de carburant muni d'un dispositif d'étanchéité selon la revendication 4,
caractérisé en ce qu'
une douille intermédiaire (13) est emmanchée sur l'injecteur de carburant (1) et présente, dans la direction axiale, une surface de serrage (14) orientée vers la douille d'étanchéité (4) et dont l'extension radiale correspond à l'extension radiale du bombement (11) de la douille d'étanchéité (4). - Injecteur de carburant muni d'un dispositif d'étanchéité selon la revendication 5,
caractérisé en ce que
la douille d'étanchéité (4) munie du bombement périphérique (11) est en appui contre la surface de serrage (14) de la douille intermédiaire (13).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10108194 | 2001-02-21 | ||
DE10108194A DE10108194A1 (de) | 2001-02-21 | 2001-02-21 | Dichtvorrichtung für ein Brennstoffeinspritzventil |
PCT/DE2002/000624 WO2002066819A1 (fr) | 2001-02-21 | 2002-02-21 | Dispositif d"etancheite pour soupape d"injection de carburant |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1366284A1 EP1366284A1 (fr) | 2003-12-03 |
EP1366284B1 true EP1366284B1 (fr) | 2004-08-11 |
Family
ID=7674897
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02712799A Expired - Lifetime EP1366284B1 (fr) | 2001-02-21 | 2002-02-21 | Dispositif d'etancheite pour soupape d'injection de carburant |
Country Status (7)
Country | Link |
---|---|
US (1) | US6892707B2 (fr) |
EP (1) | EP1366284B1 (fr) |
JP (1) | JP2004518850A (fr) |
KR (1) | KR20020087491A (fr) |
CZ (1) | CZ20023424A3 (fr) |
DE (2) | DE10108194A1 (fr) |
WO (1) | WO2002066819A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105339648A (zh) * | 2013-06-26 | 2016-02-17 | 罗伯特·博世有限公司 | 燃料喷射器 |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4089577B2 (ja) * | 2003-09-25 | 2008-05-28 | トヨタ自動車株式会社 | 筒内噴射用インジェクタ |
DE10345965A1 (de) * | 2003-10-02 | 2005-07-07 | Parker Hannifin Gmbh | Brennstoffeinspritzventil |
FR2862717B1 (fr) * | 2003-11-21 | 2006-04-07 | Renault Sas | Agencement pour l'etancheite entre un porte-injecteur et une culasse de vehicule automobile |
DE10358913A1 (de) * | 2003-12-16 | 2005-09-01 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
DE102004049277A1 (de) * | 2004-10-09 | 2006-04-13 | Robert Bosch Gmbh | Dämpfungselement für ein Brennstoffeinspritzventil |
FR2878582B1 (fr) * | 2004-11-30 | 2007-04-27 | Renault Sas | Moteur comprenant un joint interpose entre la culasse et chaque buse d'injection |
DE102005006818A1 (de) * | 2005-02-15 | 2006-08-17 | Volkswagen Mechatronic Gmbh & Co. Kg | Dichtungseinrichtung für einen Kraftstoffinjektor sowie Verfahren zum Abdichten |
JP4512018B2 (ja) * | 2005-09-28 | 2010-07-28 | 株式会社ケーヒン | 電動モータのスロットルボディへの取り付け構造 |
JP5003934B2 (ja) * | 2006-09-07 | 2012-08-22 | 内山工業株式会社 | ガスケット |
US7513242B2 (en) * | 2007-05-03 | 2009-04-07 | Cummins Inc. | Fuel injector assembly with injector seal retention |
KR100931144B1 (ko) * | 2007-12-14 | 2009-12-11 | 현대자동차주식회사 | 인젝터의 컷오프 솔레노이드밸브 |
EP2090773B1 (fr) * | 2008-02-15 | 2010-12-08 | Continental Automotive GmbH | Injecteur à carburant |
DE102009000285A1 (de) * | 2009-01-19 | 2010-07-22 | Robert Bosch Gmbh | Kraftstoff-Injektor sowie Brennkraftmaschine mit Kraftstoff-Injektor |
US8230838B2 (en) * | 2009-09-23 | 2012-07-31 | Cummins Intellectual Properties, Inc. | Injector seal assembly and method of sealing a coolant passage from an injector |
US9382887B2 (en) | 2009-09-23 | 2016-07-05 | Cummins Intellectual Property. Inc. | Engine component seal assembly and method of sealing a coolant passage from an engine component |
DE112010005428B4 (de) * | 2010-03-30 | 2017-08-17 | Toyota Jidosha Kabushiki Kaisha | Vibrationsisolator für ein Kraftstoffeinspritzventil und ein Stützaufbau für ein Kraftstoffeinspritzventil |
US20110265767A1 (en) * | 2010-05-03 | 2011-11-03 | Delphi Technologies, Inc. | Isolater for fuel injector |
DE112011102685T5 (de) * | 2010-08-11 | 2013-06-20 | Cummins Intellectual Properties, Inc. | Motor mit Injektormontage- und Kühlanordnung |
JP5270714B2 (ja) * | 2011-04-27 | 2013-08-21 | トヨタ自動車株式会社 | 燃料噴射弁用制振インシュレータ |
DE102012219654A1 (de) * | 2012-10-26 | 2014-04-30 | Robert Bosch Gmbh | Kraftstoffinjektor |
US9410520B2 (en) * | 2013-08-08 | 2016-08-09 | Cummins Inc. | Internal combustion engine including an injector combustion seal positioned between a fuel injector and an engine body |
US10036355B2 (en) | 2013-08-08 | 2018-07-31 | Cummins Inc. | Heat transferring fuel injector combustion seal with load bearing capability |
DE102014225988A1 (de) * | 2014-12-16 | 2016-06-16 | Robert Bosch Gmbh | Entkopplungselement für eine Brennstoffeinspritzvorrichtung |
DE102015225055A1 (de) * | 2015-12-14 | 2017-06-14 | Robert Bosch Gmbh | Kraftstoffinjektor |
US11192210B2 (en) | 2016-10-31 | 2021-12-07 | Cummins Inc. | Injector sleeve assembly and method for field repair procedure |
JP2018172972A (ja) * | 2017-03-31 | 2018-11-08 | 本田技研工業株式会社 | 燃料噴射弁の取付構造 |
US11136953B2 (en) | 2018-11-20 | 2021-10-05 | Delphi Technologies Ip Limited | Fuel injector with a locating pin, internal combustion engine using the same, and method |
US10767613B2 (en) * | 2018-11-20 | 2020-09-08 | Delphia Technologies Ip Limited | Fuel injector with locating pins, internal combustion engine using the same, and method |
TR201820243A2 (tr) * | 2018-12-24 | 2020-07-21 | Bosch Sanayi Ve Tic A S | Bir Yakıt Enjektörüne Yönelik bir Nozul Ünitesi, Yakıt Enjektörü Ve Aynı Zamanda Bir Nozul Ünitesinin Üretilmesine Yönelik Yöntem |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
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US3038456A (en) * | 1961-01-27 | 1962-06-12 | Allis Chalmers Mfg Co | Self-locking nozzle gasket |
DE3000061C2 (de) * | 1980-01-03 | 1993-10-14 | Bosch Gmbh Robert | Kraftstoffeinspritzdüse für Brennkraftmaschinen |
JPS58206871A (ja) | 1982-05-28 | 1983-12-02 | Yanmar Diesel Engine Co Ltd | 燃料噴射弁のノズル断熱装置 |
US4528959A (en) * | 1984-01-23 | 1985-07-16 | Deere & Company | Seal for an internal combustion engine |
FR2659115B1 (fr) * | 1990-03-02 | 1992-05-15 | Procal | Joint d'etancheite pour injecteur de moteur a combustion interne. |
JPH0491362A (ja) * | 1990-07-31 | 1992-03-24 | Kubota Corp | ディーゼルエンジンの燃料噴射ノズルのノズル先端部防熱装置 |
JPH08200182A (ja) * | 1995-01-25 | 1996-08-06 | Zexel Corp | 電磁式燃料噴射弁およびその取付け構造 |
DE19535665A1 (de) | 1995-06-02 | 1997-02-13 | Neumann & Stallherm Gmbh | Verfahren zur Erzeugung von hochoktanigem Reformat-Benzin aus Destillatbenzin oder Gaskondensat |
JPH09112697A (ja) * | 1995-10-17 | 1997-05-02 | Mitsubishi Electric Corp | シールリング |
DE19743103A1 (de) * | 1997-09-30 | 1999-04-01 | Bosch Gmbh Robert | Wärmeschutzhülse |
DE19808068A1 (de) * | 1998-02-26 | 1999-09-02 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
JPH11247743A (ja) | 1998-03-02 | 1999-09-14 | Mitsubishi Electric Corp | 筒内噴射用燃料噴射弁 |
DE19838748B4 (de) * | 1998-08-26 | 2008-06-19 | Daimler Ag | Auf den Brennraum einer Brennkraftmaschine einspritzende Kraftstoffeinspritzdüse |
DE19941930A1 (de) * | 1999-09-03 | 2001-03-15 | Bosch Gmbh Robert | Kraftstoffeinspritzventil für Brennkraftmaschinen |
DE19962968A1 (de) * | 1999-12-24 | 2001-06-28 | Bosch Gmbh Robert | Ausgleichselement |
DE10027662A1 (de) | 2000-06-03 | 2001-12-06 | Bosch Gmbh Robert | Dichtmittel und Niederhalter für ein Brennstoffeinspritzventil |
DE10027669A1 (de) * | 2000-06-03 | 2001-12-06 | Bosch Gmbh Robert | Befestigungsmittel für ein Brennstoffeinspritzventil |
-
2001
- 2001-02-21 DE DE10108194A patent/DE10108194A1/de not_active Withdrawn
-
2002
- 2002-02-21 DE DE50200816T patent/DE50200816D1/de not_active Expired - Lifetime
- 2002-02-21 US US10/258,407 patent/US6892707B2/en not_active Expired - Fee Related
- 2002-02-21 EP EP02712799A patent/EP1366284B1/fr not_active Expired - Lifetime
- 2002-02-21 JP JP2002566110A patent/JP2004518850A/ja not_active Withdrawn
- 2002-02-21 CZ CZ20023424A patent/CZ20023424A3/cs unknown
- 2002-02-21 KR KR1020027013843A patent/KR20020087491A/ko not_active Application Discontinuation
- 2002-02-21 WO PCT/DE2002/000624 patent/WO2002066819A1/fr not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105339648A (zh) * | 2013-06-26 | 2016-02-17 | 罗伯特·博世有限公司 | 燃料喷射器 |
Also Published As
Publication number | Publication date |
---|---|
US6892707B2 (en) | 2005-05-17 |
EP1366284A1 (fr) | 2003-12-03 |
DE10108194A1 (de) | 2002-08-29 |
US20040060544A1 (en) | 2004-04-01 |
JP2004518850A (ja) | 2004-06-24 |
WO2002066819A1 (fr) | 2002-08-29 |
DE50200816D1 (de) | 2004-09-16 |
KR20020087491A (ko) | 2002-11-22 |
CZ20023424A3 (cs) | 2004-04-14 |
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