EP1373712B1 - Dispositif de fixation pour soupape d'injection de carburant - Google Patents

Dispositif de fixation pour soupape d'injection de carburant Download PDF

Info

Publication number
EP1373712B1
EP1373712B1 EP02727232A EP02727232A EP1373712B1 EP 1373712 B1 EP1373712 B1 EP 1373712B1 EP 02727232 A EP02727232 A EP 02727232A EP 02727232 A EP02727232 A EP 02727232A EP 1373712 B1 EP1373712 B1 EP 1373712B1
Authority
EP
European Patent Office
Prior art keywords
fuel injection
injection valve
sleeve
fastening device
fastening
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
EP02727232A
Other languages
German (de)
English (en)
Other versions
EP1373712A1 (fr
Inventor
Ferdinand Reiter
Jens Pohlmann
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 EP1373712A1 publication Critical patent/EP1373712A1/fr
Application granted granted Critical
Publication of EP1373712B1 publication Critical patent/EP1373712B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Definitions

  • the invention is based on a fastening device for Attachment of a fuel injection valve in one Cylinder head of an internal combustion engine according to the species of Main claim.
  • Fuel injection valves for direct injection of Fuel into the combustion chamber of a mixture-compressing, spark-ignition internal combustion engine are usually by means of a Spannpratze, with the cylinder head of the Internal combustion engine is bolted, in the cylinder head held down.
  • a clamping claw goes for example from JP 08-31 25 03 A. The clamping claw presses doing so on a shoulder of the fuel injector and keeps this in the receiving bore of the Cylinder head firmly.
  • the clamping claw is by means of a appropriate tool, for. B. a torque wrench, tightened so tight that the fuel injector is not by the ruling in the combustion chamber of the internal combustion engine Pressure can be pushed out of the cylinder head.
  • JP 57-070952 A is already a fastening device for fastening a Fuel injection valve for direct injection of fuel into the combustion chamber an internal combustion engine, by which the fuel injection valve at a Cylinder head of the internal combustion engine is attached.
  • the fastening device comprises a trained as a pressure plate hold-down on the Fuel injection valve is plugged.
  • the fuel injection valve is also of an elastic ring body and this in turn surrounding retaining ring encompassed.
  • the hold-down is supported on the elastic ring body or on the Retaining ring, wherein the ring body on the other hand on a collar of the Fuel injection valve is applied.
  • a fuel supply line receiving bracket element is the hold down two screws firmly with the Cylinder head connected.
  • the fastening device according to the invention for a Fuel injection valve with the 'characteristic features the main claim has the advantage over; that this Fuel injection valve by a between the Fuel injection valve and a fastener clamped down is pressed down and Consequently, no bias due to excessive Bolting forces can occur.
  • the force application in the fuel injection valve is exclusive axially without radial component.
  • the hold-down force can but be adjusted so that the Fuel injector securely held in the cylinder head becomes.
  • the sleeve and the hold-down are off Spring steel sheet produced by stamping, making them show good elasticity properties.
  • Another advantage is that the fastener in easy way by a screw on the cylinder head can be fixed.
  • Fig. 1 shows a schematic and simplified view an embodiment of an inventive designed fastening device for a Fuel injection valve on a cylinder head of a Internal combustion engine, in which the fastening device 9 and the fuel injection valve 1 in the circumferential direction seen for purposes of representation not exactly to each other are shown ..
  • a fuel injection valve 1 is in the form of a directly injecting fuel injection valve 1 carried out for direct injection of fuel in a combustion chamber of a not shown mixing-compression, spark-ignited internal combustion engine in a cylinder head 2 is installed.
  • the Fuel injection valve 1 has an inlet side End 3 a plug connection to a not shown Fuel distribution line, which through a seal 4 between the fuel rail and a Supply pipe 5 of the fuel injection valve. 1 is sealed.
  • the fuel injection valve 1 has via an electrical connection 6 for the electrical Contacting for actuating the fuel injection valve 1.
  • the fuel injection valve 1 has in one Receiving bore 7 of the cylinder head 2 an intermediate ring. 8 on, as a bearing for the fuel injection valve 1 in the receiving bore 7 is used.
  • the intermediate ring 8 consists of elastic material and ensures centering of the Fuel injection valve 1 in the receiving bore. 7
  • the fastening device 9 consists of a hold-down 10, which on the one hand on a sleeve 11, which on the inlet end 3 of the fuel injection valve. 1 is attached and attached to a metal collar 16 of the Fuel injection valve 1 is applied, and on the other hand a fastening element 12, which by a screw 13th is penetrated and by means of this on the cylinder head. 2 is fastened, supports.
  • the axial length of the Cylinder head 2 superior part of Fuel injection valve 1 and the fastener 12th is about the same.
  • the sleeve 11 is preferably made of spring steel sheet punched out and has two pins 14 in the embodiment on, for fixing the hold 10 to the sleeve 11th serve.
  • the pins 14 in particular prevent this lateral twisting of the hold 10, since they are in corresponding recesses 15 of the blank holder 10th intervening, causing shear forces between the Fuel injection valve 1 and the fastening device 9 is prevented.
  • the sleeve 11 is slotted and thus z. B. by 90 ° interrupted.
  • the production of spring steel secures the positive fit of the sleeve 11 am Fuel injection valve 1.
  • the sleeve 11 is supported in the Embodiment on the metal collar 16 of the Fuel injector 1 from, but it can also for example, arranged on a further inlet side Support plastic collar 17 of the fuel injection valve 1.
  • the pins 14 of the sleeve 11 can also asymmetrically on the Circumference of the sleeve 11 may be arranged so that the Mounting position of the blank holder 10 clearly defined is.
  • the purpose of this measure is from the perspective Representation of the fastening device 9 in Fig. 2nd seen. Since the hold-down 10 to avoid Shear forces is designed asymmetrically, with the part of the Hold-down 10, based on the fastener 12th supported, partially opposite to the sleeve 11th adjoining area is bent, must be a correct Ensure assembly in the correct position. This can by the asymmetrical arrangement of the pins 14 on the Sleeve 11 or the corresponding recesses 15th of the hold 10 can be achieved.
  • the screw 13 serves the same time Fixation of the hold 10 to the fastener 12.
  • the attachment can, however, by other methods done, for example by pressing a bolt in an undercut volume of a recess in the Cylinder head 2 and subsequent attachment of the Hold-down 10 by means of a short screw.
  • the initiation of the force of the fastening device 9 via the sleeve 11 in the fuel injection valve 1 can various aspects of attachment can be improved.
  • the flexibility of the Hold-down 10 which is both elastic and a partial plastic deformability of the hold-down 10 causes the risk of damaging the Fuel injection valve 1 by an excessive pressure at too high tightening torque during assembly of the Fixing device 9 is no longer given
  • the voltage of the blank holder 10 at a suitable choice both the material and the distance to the Fastener 12 still high enough to the Fuel injection valve 1 against the pressure in the combustion chamber of Internal combustion engine in the cylinder head 2 to press.
  • the hold-down 10 and the Fastener 12 are easy to prepare and means the screw 13 in a simple manner on the cylinder head. 2 fixable.
  • the tightening torque during assembly does not have to can assume more of an exact value, but can be in one to move a certain margin without causing malfunction due to excessive or too weak tightening of the screw 13 comes.
  • the invention is not limited to that shown Embodiment limited and, for example, for Fuel injection valves 1 for injection 'in the Combustion chamber of a self-igniting internal combustion engine applicable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Claims (6)

  1. Dispositif de fixation pour fixer un injecteur de carburant (1) pour l'injection directe de carburant dans la chambre de combustion d'un moteur à combustion interne sur la culasse (2) du moteur à combustion interne,
    le dispositif de fixation (9) comportant une patte de maintien (10) engagée sur l'injecteur (1) et un manchon (11) entourant l'injecteur (1) et la patte de maintien (10) est une pièce plate s'appuyant contre le manchon (11) en venant contre une collerette, de préférence métallique (16), de l'injecteur (1),
    caractérisé en ce que
    le manchon (11) présente des prolongements (14) tourné vers l'extrémité d'alimentation (3) de l'injecteur (1),
    ces prolongements venant s'accrocher dans des cavités (15) de la patte de maintien (10).
  2. Dispositif de fixation selon la revendication 1,
    caractérisé en ce que
    les prolongements ( 14) et les cavités (16) sont installés de manière asymétrique par rapport à la périphérie du manchon (11).
  3. Dispositif de fixation selon la revendication 1,
    caractérisé en ce que
    la patte de maintien (10) s'appuie contre un élément de fixation (12) bloqué par une vis (13) sur la culasse (2).
  4. Dispositif de fixation selon la revendication 3,
    caractérisé en ce que
    l'élément de fixation (12) est en forme de manchon.
  5. Dispositif de fixation selon l'une des revendications 1 à 4,
    caractérisé en ce que
    le manchon.(11) est interrompu au niveau du branchement électrique (6) de l'injecteur de carburant (1).
  6. Dispositif de fixation selon les revendications 3 ou 4,
    caractérisé en ce que
    l'organe de maintien (10) est recourbé suivant une forme ondulée pour que la surface d'appui de la patte de maintien (10) contre l'élément de fixation (12) se situe dans un autre plan que la surface d'appui de l'organe de maintien (10) contre le manchon (11) de l'injecteur de carburant (1).
EP02727232A 2001-03-16 2002-03-15 Dispositif de fixation pour soupape d'injection de carburant Expired - Lifetime EP1373712B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10112665A DE10112665A1 (de) 2001-03-16 2001-03-16 Befestigungsvorrichtung
DE10112665 2001-03-16
PCT/DE2002/000954 WO2002075147A1 (fr) 2001-03-16 2002-03-15 Dispositif de fixation pour soupape d'injection de carburant

Publications (2)

Publication Number Publication Date
EP1373712A1 EP1373712A1 (fr) 2004-01-02
EP1373712B1 true EP1373712B1 (fr) 2005-02-23

Family

ID=7677698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02727232A Expired - Lifetime EP1373712B1 (fr) 2001-03-16 2002-03-15 Dispositif de fixation pour soupape d'injection de carburant

Country Status (8)

Country Link
US (1) US6840227B2 (fr)
EP (1) EP1373712B1 (fr)
JP (1) JP4200008B2 (fr)
KR (1) KR100853638B1 (fr)
CZ (1) CZ298138B6 (fr)
DE (2) DE10112665A1 (fr)
ES (1) ES2237677T3 (fr)
WO (1) WO2002075147A1 (fr)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10140794A1 (de) 2001-08-20 2003-07-10 Bosch Gmbh Robert Ausrichtelement
JP2004360586A (ja) * 2003-06-05 2004-12-24 Mitsubishi Electric Corp 筒内噴射用燃料噴射弁装置
US7373926B2 (en) * 2004-02-26 2008-05-20 Robert Bosch Gmbh Support element
DE102005006641A1 (de) * 2005-02-14 2006-08-24 Siemens Ag Einspritzventil zum Einspritzen von Kraftstoff und Zylinderkopf
DE102005024053A1 (de) 2005-05-25 2006-11-30 Robert Bosch Gmbh Anschluss-System
US7117726B1 (en) * 2005-06-17 2006-10-10 Gm Global Technology Operations, Inc. Method and apparatus for indirect measurement of engine cylinder pressure
DE102005033139A1 (de) 2005-07-15 2007-01-25 Robert Bosch Gmbh Niederhaltevorrichtung
EP1849996A1 (fr) * 2006-04-28 2007-10-31 Siemens Aktiengesellschaft Elément de montage pour un injecteur
DE102006056704A1 (de) * 2006-11-30 2008-06-05 Robert Bosch Gmbh Brennstoffeinspritzventil und Brennstoffeinspritzsystem
KR100862418B1 (ko) * 2006-12-15 2008-10-08 현대자동차주식회사 자동차용 인젝터 클램프
US8047183B2 (en) 2009-05-29 2011-11-01 Cummins Intellectual Properties, Inc. Fuel injector, clamping assembly and method of mounting a fuel injector
US8087398B2 (en) * 2009-06-02 2012-01-03 Hitachi Automotive Systems Americas Inc. Fuel system for a direct injection internal combustion engine
DE102009034538A1 (de) * 2009-07-23 2011-01-27 Fev Motorentechnik Gmbh Zündkerzeneinbau im Zylinderkopf
DE102009050337A1 (de) * 2009-10-22 2011-04-28 GM Global Technology Operations, Inc., Detroit Bauteileeinheit für ein Kraftstoffsystem einer Brennkraftmaschine sowie Brennkraftmaschine
EP2333301B1 (fr) * 2009-12-09 2012-11-07 Continental Automotive GmbH Dispositif de couplage
JP5408010B2 (ja) * 2010-04-08 2014-02-05 株式会社デンソー 高圧ポンプ
US20110265767A1 (en) * 2010-05-03 2011-11-03 Delphi Technologies, Inc. Isolater for fuel injector
DE102010034411B4 (de) 2010-08-14 2018-10-11 Audi Ag Brennkraftmaschine mit Einspritzventil
US9422903B2 (en) * 2013-05-01 2016-08-23 Denso International America, Inc. Connecting element for GDI tube stress reduction
CN107076082B (zh) * 2014-11-19 2022-12-20 大陆汽车有限公司 用于内燃机的燃料轨组件
EP3353409B1 (fr) * 2015-09-24 2021-05-19 Vitesco Technologies GmbH Ensemble rampe de carburant et procédé de fabrication d'un tel ensemble
DE102016225695A1 (de) * 2016-12-21 2018-06-21 Robert Bosch Gmbh Anordnung mit zumindest einem Ventil und einem Halter
US10471554B2 (en) * 2017-08-22 2019-11-12 Caterpillar Inc. Fuel injector bore repair
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
US11644000B2 (en) * 2021-08-25 2023-05-09 Caterpillar Inc. Fuel injector clamp assembly for offset clamping bolt and cylinder head assembly with same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5770952A (en) 1980-10-20 1982-05-01 Honda Motor Co Ltd Fuel injection valve mounting device
JP2953035B2 (ja) * 1990-11-02 1999-09-27 株式会社デンソー 燃料噴射装置の搭載方法
JPH06235366A (ja) * 1993-02-05 1994-08-23 Aisan Ind Co Ltd インジェクタの取付構造
US5697345A (en) * 1994-12-28 1997-12-16 Cummins Engine Company, Inc. Clamping load distributor for a fuel injector
JPH08312503A (ja) * 1995-03-10 1996-11-26 Mitsubishi Motors Corp 固定対象物、特に筒内噴射型内燃機関用インジェクタの取付構造
US5566658A (en) * 1995-04-21 1996-10-22 Cummins Engine Company, Inc. Clamping load distributor and top stop for a fuel injector
JP3765132B2 (ja) * 1996-09-06 2006-04-12 日産自動車株式会社 直噴式ディーゼル機関における燃料噴射ノズル固定装置
DE19735665A1 (de) * 1997-06-25 1999-01-07 Bosch Gmbh Robert Brennstoffeinspritzanlage
JPH1182241A (ja) 1997-09-01 1999-03-26 Nissan Motor Co Ltd 内燃機関における燃料噴射弁取付装置
DE19853090A1 (de) * 1998-11-18 2000-05-25 Bosch Gmbh Robert Brennstoffeinspritzanlage
JP3871016B2 (ja) * 2000-05-22 2007-01-24 スズキ株式会社 筒内噴射式エンジンの燃料インジェクタ取付構造

Also Published As

Publication number Publication date
DE50202316D1 (de) 2005-03-31
KR20020091834A (ko) 2002-12-06
US6840227B2 (en) 2005-01-11
CZ20023710A3 (en) 2004-06-16
EP1373712A1 (fr) 2004-01-02
CZ298138B6 (cs) 2007-07-04
DE10112665A1 (de) 2002-09-19
ES2237677T3 (es) 2005-08-01
JP2004518879A (ja) 2004-06-24
US20040020469A1 (en) 2004-02-05
JP4200008B2 (ja) 2008-12-24
KR100853638B1 (ko) 2008-08-25
WO2002075147A1 (fr) 2002-09-26

Similar Documents

Publication Publication Date Title
EP1373712B1 (fr) Dispositif de fixation pour soupape d'injection de carburant
EP1366285B1 (fr) Dispositif de fixation
EP2189650B1 (fr) Dispositif d'injection de carburant
EP1906464B1 (fr) Actuateur piézo-éléctrique doté d'une gaine, destiné à l'insertion dans un piézo-injecteur
EP1364123B1 (fr) Dispositif de fixation
DE102014200339A1 (de) Elektromagnetisch ansteuerbares Saugventil
EP1906005A1 (fr) Dispositif d'injection de carburant
EP1888912A1 (fr) Systeme de raccordement
DE10359299A1 (de) Stützelement
EP1721074A1 (fr) Element de maintien
EP1907688A1 (fr) Dispositif de retenue
EP1442211B1 (fr) Procede pour produire une conduite de reservoir de carburant comprenant une piece de raccordement precontrainte
EP1570171B1 (fr) Element d'appui
EP1436499B1 (fr) Soupape d'injection de carburant
EP1775460B1 (fr) Soupape d'injection de carburant
DE10159748B4 (de) Brennstoffeinspritzventil
DE10108193A1 (de) Befestigungsvorrichtung
EP1442210B1 (fr) Soupape d'injection de carburant
EP1425509B1 (fr) Element d'ajustage
AT5490U1 (de) Befestigungseinrichtung für eine in eine bohrung eines motorgehäuses einer brennkraftmaschine einsetzbare kraftstoffeinspritzeinrichtung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20031016

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: REITER, FERDINAND

Inventor name: POHLMANN, JENS

17Q First examination report despatched

Effective date: 20040123

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50202316

Country of ref document: DE

Date of ref document: 20050331

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20050608

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2237677

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20051124

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20110324

Year of fee payment: 10

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20130710

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120316

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20140319

Year of fee payment: 13

Ref country code: IT

Payment date: 20140324

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20140324

Year of fee payment: 13

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20150315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150315

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20151130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150331

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20160525

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50202316

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171003