EP1366284B1 - Dichtvorrichtung für ein brennstoffeinspritzventil - Google Patents

Dichtvorrichtung für ein brennstoffeinspritzventil Download PDF

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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
Application number
EP02712799A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1366284A1 (de
Inventor
Ferdinand Reiter
Jens Pohlmann
Achim Besemer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1366284A1 publication Critical patent/EP1366284A1/de
Application granted granted Critical
Publication of EP1366284B1 publication Critical patent/EP1366284B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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)
EP02712799A 2001-02-21 2002-02-21 Dichtvorrichtung für ein brennstoffeinspritzventil Expired - Lifetime EP1366284B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10108194A DE10108194A1 (de) 2001-02-21 2001-02-21 Dichtvorrichtung für ein Brennstoffeinspritzventil
DE10108194 2001-02-21
PCT/DE2002/000624 WO2002066819A1 (de) 2001-02-21 2002-02-21 Dichtvorrichtung für ein brennstoffeinspritzventil

Publications (2)

Publication Number Publication Date
EP1366284A1 EP1366284A1 (de) 2003-12-03
EP1366284B1 true EP1366284B1 (de) 2004-08-11

Family

ID=7674897

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02712799A Expired - Lifetime EP1366284B1 (de) 2001-02-21 2002-02-21 Dichtvorrichtung für ein brennstoffeinspritzventil

Country Status (7)

Country Link
US (1) US6892707B2 (ja)
EP (1) EP1366284B1 (ja)
JP (1) JP2004518850A (ja)
KR (1) KR20020087491A (ja)
CZ (1) CZ20023424A3 (ja)
DE (2) DE10108194A1 (ja)
WO (1) WO2002066819A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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 (en) * 2008-02-15 2010-12-08 Continental Automotive GmbH Fuel injector
DE102009000285A1 (de) * 2009-01-19 2010-07-22 Robert Bosch Gmbh Kraftstoff-Injektor sowie Brennkraftmaschine mit Kraftstoff-Injektor
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
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
JP5320504B2 (ja) * 2010-03-30 2013-10-23 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、及び燃料噴射弁の支持構造
US20110265767A1 (en) * 2010-05-03 2011-11-03 Delphi Technologies, Inc. Isolater for fuel injector
WO2012021709A1 (en) * 2010-08-11 2012-02-16 Cummins Intellectual Properties, Inc Engine with injector mounting and cooling arrangement
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
US10036355B2 (en) 2013-08-08 2018-07-31 Cummins Inc. Heat transferring fuel injector combustion seal with load bearing capability
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
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
CN110268154A (zh) 2016-10-31 2019-09-20 康明斯公司 用于现场修复过程的喷射器套筒组件和方法
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
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
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
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

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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
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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
DE10027669A1 (de) * 2000-06-03 2001-12-06 Bosch Gmbh Robert Befestigungsmittel für ein Brennstoffeinspritzventil
DE10027662A1 (de) 2000-06-03 2001-12-06 Bosch Gmbh Robert Dichtmittel und Niederhalter für ein Brennstoffeinspritzventil

Cited By (1)

* Cited by examiner, † Cited by third party
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
US20040060544A1 (en) 2004-04-01
DE10108194A1 (de) 2002-08-29
US6892707B2 (en) 2005-05-17
WO2002066819A1 (de) 2002-08-29
EP1366284A1 (de) 2003-12-03
DE50200816D1 (de) 2004-09-16
KR20020087491A (ko) 2002-11-22
CZ20023424A3 (cs) 2004-04-14
JP2004518850A (ja) 2004-06-24

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