EP1364119A1 - Ausgleichselement für ein brennstoffeinspritzventil - Google Patents
Ausgleichselement für ein brennstoffeinspritzventilInfo
- Publication number
- EP1364119A1 EP1364119A1 EP02714056A EP02714056A EP1364119A1 EP 1364119 A1 EP1364119 A1 EP 1364119A1 EP 02714056 A EP02714056 A EP 02714056A EP 02714056 A EP02714056 A EP 02714056A EP 1364119 A1 EP1364119 A1 EP 1364119A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- washer
- fuel injection
- compensation element
- injection valve
- element according
- 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.)
- Granted
Links
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 compensating element for a fuel injector according to the preamble of the main claim.
- a fuel injection system which has a compensating element which consists of a support body which has a spherical support surface.
- a fuel injector is supported via this compensating element in a receiving bore in a cylinder head. Since the fuel injection valve rests on the spherically shaped spherical cap surface with a support surface, the fuel injection valve can be mounted up to a certain angular deviation from the axis of the receiving bore and can be pressed firmly into the receiving bore by suitable means, for example a clamping claw. This enables simple adaptation to the fuel feed lines. Tolerances in the manufacture and assembly of the fuel injection valves can be compensated for.
- the support body is complex to manufacture and requires a spherical surface to be produced precisely.
- the rigid support body cannot are compressed and there is therefore no compensation in the axial direction of the receiving bore. Tolerances can only be compensated for on the specified geometry of the spherical surface. It is not possible to perform a radial compensating movement purely for the location bore.
- Fuel injection valve receiving receiving bore of the cylinder head inserted washer with an oval or round cross section is stored, which does not have to perform a sealing function.
- the compensation element ensures through its
- the washer can be optionally slotted and then pressed onto a valve housing of the fuel injector by means of an interference fit or can be designed as a closed ring which is loosely fitted onto the valve housing.
- the washer can advantageously be made of wire, which can consist, for example, of alloyed or unalloyed steel. ' Manufacturing from copper or a copper alloy is particularly advantageous, since copper has a high thermal conductivity and a good surface adaptation.
- Fig. 1 is a schematic, partially sectioned view of an embodiment of a compensating element designed according to the invention for a
- Fuel injection valve in a cylinder head of an internal combustion engine Fuel injection valve in a cylinder head of an internal combustion engine
- FIG. 2 shows a schematic section from the compensation element according to the invention shown in FIG. 1 in area II in FIG. 1.
- Fig. 1 shows a schematic partial section through an embodiment of a compensating element designed according to the invention for a fuel injector in a receiving bore of a cylinder head of a mixture-compressing, spark-ignition internal combustion engine.
- a fuel injection valve 1 is designed in the form of a direct injection fuel injection valve 1 and installed in a cylinder head 2 of an internal combustion engine.
- the fuel injection valve 1 has a plug connection to a fuel distributor line 4 at an inlet-side end 3, which is sealed by a seal 5 between the fuel distributor line 4 and a supply line connector 6 of the fuel injection valve 1.
- the fuel injector 1 has an electrical connection 7 for the electrical Contact for actuating the fuel injector 1.
- the fuel injection valve 1 has a washer 8 in a receiving bore 9 of the cylinder head 2, which is used as a compensating element for the fuel injection valve 1 in the receiving bore 9.
- the washer 8 fulfills several functions. On the one hand, by spacing the fuel injection valve 1 from a wall 10 of the receiving bore 9, a centering of the fuel injection valve 1 can be achieved, which counteracts tilting of the fuel injection valve 1, for example in the area of a nozzle body 11 of the fuel injection valve 1, and thus for the sealing effect of a sealing ring placed on the nozzle body 11 12, which seals the cylinder head 2 against the combustion chamber of the internal combustion engine, not shown, contributes.
- Temperature-related tolerances which occur for example due to the heating of the fuel injection valve 1 and the cylinder head 2 during the operation of the internal combustion engine, can be compensated for by the washer 8. Tolerances of this type can lead, for example, to loads and tensions in the plug connection between the fuel injection valve 1 and the fuel distributor line 4.
- the material for producing the washer 8, which can be drawn as wire and then bent, for example, is stainless steel, unalloyed, but surface-treated steel for better heat conduction or copper or copper alloys.
- the latter in particular are characterized by high thermal conductivity and good surface adaptation through plastic deformability.
- the lower ring 8 can have a round cross section or can also be oval in shape.
- the fuel injector 1 can be fitted either by a clearance fit or by a press fit.
- the clearance fit which allows the washer 8 to assume an optimal position in accordance with the prevailing conditions, is particularly suitable for closed washers 8, while the press fit, which is particularly easy to achieve with slotted washers 8, provides effective protection against the loss of the washer 8 offers when installing and removing the fuel injector 1.
- FIG. 2 shows a schematic excerpt from the compensation element according to the invention shown in FIG. 1 in area II in FIG. 1.
- FIG. 2 does not require any modifications with regard to the shape of the receiving bore 9 of the cylinder head 2 or the valve housing 13 of the fuel injector 1 to install the washer 8.
- the fuel injection valve 1 rests with a shoulder 14 of the valve housing 13, which is chamfered at an angle of approximately 45 °, against a shoulder 15 of the cylinder head 2 in the receiving bore 9, which has an at least similar, better same angle of inclination.
- the tolerances mentioned above occur due to manufacturing inaccuracies and heating.
- the washer 8 is simply placed on the shoulder 15 of the cylinder head 2 or on the valve housing 13 in the The area of the shoulder 14 is plugged on, whereby the previous shoulder closure between the fuel injection valve 1 and the receiving bore 9 is opened at a distance which corresponds to the diameter of the washer 8.
- This enables the washer to assume an optimal position corresponding to the circumstances, which can also result, for example, in the ring being tilted or distorted relative to a longitudinal axis 16 of the fuel injection valve 1 or the receiving bore 9.
- This enables the desired tolerance compensation, which prevents tensions from building up and subsequent malfunctions.
- the invention is not limited to the exemplary embodiment shown and can also be used, for example, for fuel injection valves 1 for injection into the combustion chamber of a self-igniting internal combustion 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)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10108466A DE10108466A1 (de) | 2001-02-22 | 2001-02-22 | Ausgleichselement für ein Brennstoffeinspritzventil |
DE10108466 | 2001-02-22 | ||
PCT/DE2002/000660 WO2002066822A1 (de) | 2001-02-22 | 2002-02-22 | Ausgleichselement für ein brennstoffeinspritzventil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1364119A1 true EP1364119A1 (de) | 2003-11-26 |
EP1364119B1 EP1364119B1 (de) | 2007-01-03 |
Family
ID=7675068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02714056A Expired - Lifetime EP1364119B1 (de) | 2001-02-22 | 2002-02-22 | Ausgleichselement für ein brennstoffeinspritzventil |
Country Status (6)
Country | Link |
---|---|
US (1) | US6807945B2 (de) |
EP (1) | EP1364119B1 (de) |
JP (1) | JP2004518853A (de) |
CZ (1) | CZ20023458A3 (de) |
DE (2) | DE10108466A1 (de) |
WO (1) | WO2002066822A1 (de) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10338715B4 (de) | 2003-08-22 | 2014-07-17 | Robert Bosch Gmbh | Ausgleichselement für ein Brennstoffeinspritzventil |
EP1729720B1 (de) * | 2004-03-23 | 2008-11-19 | L'oreal | Zusammensetzung enthaltend ein polymer basierend auf einer monomerverbindubg gekennzeichnet durch eine optische eingenschaft und ein verfahren zu deren vervendung |
JP4546849B2 (ja) * | 2005-02-14 | 2010-09-22 | 三桜工業株式会社 | 管体のシール構造 |
DE102005011574A1 (de) | 2005-03-14 | 2006-09-21 | Robert Bosch Gmbh | Zwischenelement für ein Brennstoffeinspritzventil |
US7293550B2 (en) * | 2006-01-31 | 2007-11-13 | Gm Global Technology Operations, Inc. | Fuel injector isolation seat |
US7513242B2 (en) * | 2007-05-03 | 2009-04-07 | Cummins Inc. | Fuel injector assembly with injector seal retention |
DE102007035714A1 (de) * | 2007-07-30 | 2009-02-05 | Robert Bosch Gmbh | Brennstoff-Einspritzanlage mit Ausgleichselement |
DE102008002654A1 (de) | 2008-06-26 | 2009-12-31 | Robert Bosch Gmbh | Entkoppelungselement für eine Brennstoffeinspritzvorrichtung |
EP2148082B1 (de) * | 2008-07-24 | 2011-10-19 | Continental Automotive GmbH | Kupplungsanordnung für ein Einspritzventil und Einspritzventil |
JP2010138809A (ja) * | 2008-12-11 | 2010-06-24 | Denso Corp | 燃料噴射弁の取付け構造 |
DE102008054591A1 (de) | 2008-12-12 | 2010-06-17 | Robert Bosch Gmbh | Entkopplungselement für eine Brennstoffeinspritzvorrichtung |
JP4913174B2 (ja) * | 2009-03-30 | 2012-04-11 | 愛知機械工業株式会社 | インジェクタの取付構造およびシリンダヘッド側部材並びにこれを備える内燃機関 |
JP5558293B2 (ja) * | 2010-09-22 | 2014-07-23 | 株式会社ケーヒン | 燃料噴射弁の支持装置 |
DE102011003957A1 (de) * | 2011-02-10 | 2012-08-16 | Elringklinger Ag | Dichtelement |
DE102011089274A1 (de) | 2011-12-20 | 2013-06-20 | Robert Bosch Gmbh | Entkopplungselement für eine Brennstoffeinspritzvorrichtung |
DE102011089295A1 (de) | 2011-12-20 | 2013-06-20 | Robert Bosch Gmbh | Entkopplungselement für eine Brennstoffeinspritzvorrichtung |
DE102012206194A1 (de) | 2012-04-16 | 2013-10-17 | Robert Bosch Gmbh | Mehrteiliges Isolationselement, insbesondere für eine Brennstoffeinspritzvorrichtung |
EP2806151A1 (de) * | 2013-05-20 | 2014-11-26 | Perkins Engines Company Limited | Kraftstoffeinspritzdüse |
CN105612342B (zh) * | 2013-10-15 | 2018-04-10 | 大陆汽车有限公司 | 燃料喷射器和燃料喷射系统 |
JP5862712B2 (ja) * | 2014-06-27 | 2016-02-16 | 株式会社デンソー | 燃料噴射弁 |
DE102014217555A1 (de) | 2014-09-03 | 2016-03-03 | Robert Bosch Gmbh | Entkopplungselement für eine Brennstoffeinspritzvorrichtung |
DE102014225988A1 (de) | 2014-12-16 | 2016-06-16 | Robert Bosch Gmbh | Entkopplungselement für eine Brennstoffeinspritzvorrichtung |
DE102014225976A1 (de) | 2014-12-16 | 2016-06-16 | Robert Bosch Gmbh | Brennstoffeinspritzvorrichtung |
DE102015217500A1 (de) | 2015-09-14 | 2017-03-16 | Robert Bosch Gmbh | Entkopplungselement für eine Brennstoffeinspritzvorrichtung |
JP7156772B2 (ja) * | 2016-01-29 | 2022-10-19 | ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | 燃料噴射弁及び燃料噴射装置 |
DE102016225956A1 (de) | 2016-12-22 | 2018-06-28 | Robert Bosch Gmbh | Entkopplungselement für eine Brennstoffeinspritzvorrichtung |
DE102017218007A1 (de) | 2017-10-10 | 2019-04-11 | Robert Bosch Gmbh | Entkopplungselement für eine Brennstoffeinspritzvorrichtung |
DE102017218008A1 (de) | 2017-10-10 | 2019-04-11 | Robert Bosch Gmbh | Entkopplungselement für eine Brennstoffeinspritzvorrichtung |
DE102017218002A1 (de) | 2017-10-10 | 2019-04-11 | Robert Bosch Gmbh | Entkopplungselement für eine Brennstoffeinspritzvorrichtung |
DE102017220248A1 (de) | 2017-11-14 | 2019-05-16 | Robert Bosch Gmbh | Brennstoffeinspritzvorrichtung |
DE102018200335A1 (de) | 2018-01-11 | 2019-07-11 | Robert Bosch Gmbh | Brennstoffeinspritzvorrichtung |
DE102018004787B4 (de) | 2018-06-14 | 2020-02-20 | Neander Motors Ag | Einspritzdüse für eine Brennkraftmaschine |
DE102020214113A1 (de) | 2020-11-10 | 2022-05-12 | Robert Bosch Gesellschaft mit beschränkter Haftung | Brennstoffeinspritzvorrichtung |
DE102021214902A1 (de) | 2021-12-22 | 2023-06-22 | Robert Bosch Gesellschaft mit beschränkter Haftung | Entkopplungselement für eine Brennstoffeinspritzvorrichtung |
DE102021214900A1 (de) | 2021-12-22 | 2023-06-22 | Robert Bosch Gesellschaft mit beschränkter Haftung | Ventil zum Zumessen eines Fluids |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0610794A (ja) | 1992-06-26 | 1994-01-18 | Kubota Corp | 直噴式ディーゼルエンジンの燃料噴射装置 |
US5247918A (en) * | 1992-09-17 | 1993-09-28 | Siemens Automotive L.P. | Sealing a direct injection fuel injector to a combustion chamber |
DE4240514A1 (de) | 1992-12-02 | 1994-06-09 | Kloeckner Humboldt Deutz Ag | Einspritzventil mit verliersicherer Dichtscheibe |
DE4443861A1 (de) | 1994-12-09 | 1996-06-13 | Bosch Gmbh Robert | Kraftstoffeinspritzventil für Brennkraftmaschinen |
JPH10252609A (ja) * | 1997-01-13 | 1998-09-22 | Yamaha Motor Co Ltd | 筒内噴射エンジン |
DE19735665A1 (de) | 1997-06-25 | 1999-01-07 | Bosch Gmbh Robert | Brennstoffeinspritzanlage |
IT1306311B1 (it) * | 1998-07-01 | 2001-06-04 | Magneti Marelli Spa | Sistema di accoppiamento tra testata del motore,iniettore e collettorecarburante . |
DE10038763A1 (de) * | 2000-08-09 | 2002-02-21 | Bosch Gmbh Robert | Ausgleichselement für ein Brennstoffeinspritzventil |
DE10108467A1 (de) * | 2001-02-22 | 2002-09-05 | Bosch Gmbh Robert | Befestigungsvorrichtung |
US6640784B1 (en) * | 2002-10-09 | 2003-11-04 | Robert Bosch Corporation | Spark ignition direct injection system |
-
2001
- 2001-02-22 DE DE10108466A patent/DE10108466A1/de not_active Withdrawn
-
2002
- 2002-02-22 CZ CZ20023458A patent/CZ20023458A3/cs unknown
- 2002-02-22 DE DE50209159T patent/DE50209159D1/de not_active Expired - Lifetime
- 2002-02-22 WO PCT/DE2002/000660 patent/WO2002066822A1/de active IP Right Grant
- 2002-02-22 US US10/258,322 patent/US6807945B2/en not_active Expired - Fee Related
- 2002-02-22 EP EP02714056A patent/EP1364119B1/de not_active Expired - Lifetime
- 2002-02-22 JP JP2002566113A patent/JP2004518853A/ja active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO02066822A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20030145832A1 (en) | 2003-08-07 |
DE10108466A1 (de) | 2002-09-05 |
CZ20023458A3 (en) | 2004-05-12 |
JP2004518853A (ja) | 2004-06-24 |
DE50209159D1 (de) | 2007-02-15 |
WO2002066822A1 (de) | 2002-08-29 |
US6807945B2 (en) | 2004-10-26 |
EP1364119B1 (de) | 2007-01-03 |
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