EP1373712B1 - Dispositif de fixation pour soupape d'injection de carburant - Google Patents
Dispositif de fixation pour soupape d'injection de carburant Download PDFInfo
- 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
Links
- 239000000446 fuel Substances 0.000 title claims description 59
- 238000002347 injection Methods 0.000 title claims description 52
- 239000007924 injection Substances 0.000 title claims description 52
- 238000002485 combustion reaction Methods 0.000 claims description 21
- 210000000078 claw Anatomy 0.000 description 4
- 229910000639 Spring steel Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 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
- 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)
- 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). - 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). - 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). - Dispositif de fixation selon la revendication 3,
caractérisé en ce que
l'élément de fixation (12) est en forme de manchon. - 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). - 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).
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)
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)
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 |
-
2001
- 2001-03-16 DE DE10112665A patent/DE10112665A1/de not_active Withdrawn
-
2002
- 2002-03-15 JP JP2002573524A patent/JP4200008B2/ja not_active Expired - Fee Related
- 2002-03-15 EP EP02727232A patent/EP1373712B1/fr not_active Expired - Lifetime
- 2002-03-15 ES ES02727232T patent/ES2237677T3/es not_active Expired - Lifetime
- 2002-03-15 KR KR1020027015259A patent/KR100853638B1/ko not_active IP Right Cessation
- 2002-03-15 US US10/276,868 patent/US6840227B2/en not_active Expired - Fee Related
- 2002-03-15 WO PCT/DE2002/000954 patent/WO2002075147A1/fr active IP Right Grant
- 2002-03-15 DE DE50202316T patent/DE50202316D1/de not_active Expired - Lifetime
- 2002-03-15 CZ CZ20023710A patent/CZ298138B6/cs not_active IP Right Cessation
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 |
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