WO2002012718A1 - Ausgleichselement für ein brennstoffeinspritzventil - Google Patents
Ausgleichselement für ein brennstoffeinspritzventil Download PDFInfo
- Publication number
- WO2002012718A1 WO2002012718A1 PCT/DE2001/002967 DE0102967W WO0212718A1 WO 2002012718 A1 WO2002012718 A1 WO 2002012718A1 DE 0102967 W DE0102967 W DE 0102967W WO 0212718 A1 WO0212718 A1 WO 0212718A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ring
- rigid
- injection valve
- fuel
- fuel injection
- Prior art date
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
-
- 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 compensating element for a fuel injector according to the preamble of claim 1.
- a fuel injection system which has a compensating element which consists of a support body which has a support surface which is in the form of a cap.
- 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 that is to be produced precisely.
- the rigid support body can. are not compressed and there is therefore no compensation in the axial direction of the location hole. 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.
- an intermediate piece on the inlet side of a fuel injector is proposed in order to achieve tolerance compensation with respect to the axes of the fuel injector and a fuel outlet opening of a fuel distribution line.
- a nozzle body of the fuel injector is inserted into a receiving bore of a cylinder head and held by suitable holding means, for example a clamping claw, whereby the position of the axis of the fuel injector is predetermined.
- suitable holding means for example a clamping claw
- a disadvantage is the additional effort with several other components and the additional number of connections to be sealed. Since the intermediate piece requires an additional height, it can only be made relatively short. This means that a relatively large angle of the intermediate piece to the axes is required even with a slight offset of the axes to be compensated.
- the sealing by means of a sealing ring between Fuel injector and intermediate piece on the one hand and fuel outlet opening and intermediate piece on the other hand, however, in the case of an angle, are based only on the elasticity of the respective sealing ring. If the angle is too large, there is therefore a risk that the sealing rings are not subject to a uniform pressure between the respective sealing surfaces, which can lead to leaks.
- a heat protection sleeve which encloses a fuel injector on a nozzle body.
- the heat protection sleeve is inserted into a stepped receiving bore of a cylinder head of an internal combustion engine and surrounds a spray-side nozzle body section of a fuel injection valve inserted into the receiving bore.
- the heat protection sleeve has a collar at one end, which bears against a step of the receiving bore. Furthermore, it has a bent section at its spray-side end, with which the sleeve is formed in two layers over a certain length. In this area, the sleeve is radially clamped between the nozzle body and the bore in the cylinder head.
- the double-layered section is followed by a tapering section of the heat protection sleeve, against which a likewise tapering section of the fuel injection valve rests.
- the compensating element according to the invention with the characterizing features of the main claim has, in contrast, that it is both a tilting of the fuel injection valve makes possible the advantage 'to the axis of the receiving bore over a relatively large angular range, as well as a displacement of the fuel injection valve from the central axis of the receiving bore radially.
- the compensation element according to the invention is simple and inexpensive to manufacture.
- the compensating element transmits the axial force between the fuel injection valve and the receiving bore in the cylinder head, by means of which the fuel injection valve is supported against the holding force that fixes it.
- the holding force and position of the fuel injector can be adjusted without any problems, since the compensating element advantageously yields flexibly in the axial direction of the receiving bore and the increase in the holding force can be regulated via the immersion depth of the fuel injector into the receiving bore due to the compressibility of the intermediate ring.
- Fuel injector and the fuel rail are Fuel injector and the fuel rail.
- the first ring advantageously has a conical surface. This can be on a conical shoulder of the Fuel injector come to rest. As a result, the fuel injector is centered and guided in the first ring. ' Tolerance compensation then takes place reliably through elastic deformation of the intermediate ring and not through an incorrect position of the compensation element.
- the first and second ring can advantageously consist of stamped sheet metal parts, which are inexpensive to produce.
- Fig. 1 used with a compensating element according to the invention in a cylinder head
- FIG. 2 is an enlarged view of section II in FIG .. 1
- the fuel injection valve 1 shows a fuel injection valve 1 with a compensation element 2 according to the invention.
- the fuel injection valve 1 is used to inject fuel in a mixture-compressing, spark-ignition internal combustion engine.
- the fuel injection valve 1 shown is a high-pressure injection valve for the direct injection of fuel into a combustion chamber 3 of the internal combustion engine, which in the drawing lies below a cylinder head 4 which is only partially shown.
- the compensating element 2 according to the invention can, however, also be used in other cases.
- the fuel injection valve 1 has a Düsenk ⁇ rper 5 having an ejection end '6 and is mounted in a receiving bore 7 of the cut, as shown in outline cylinder head. 4
- Fig. 1 further shows a lying in a groove 8 of the nozzle body 5, the combustion chamber-side sealing ring 9, which seals an annular gap 10 between nozzle body 5 and receiving hole 7 and consists for example of Teflon ®.
- 1 further shows, on the fuel injector 1, a fuel inlet 11, shown in section, for example a fuel distributor line, which is sealed by means of a sealing ring 12 against a connecting piece 13 of the fuel injector 1.
- the sealing ring 12 is guided by a flange 14 of the connecting piece 13 and a support ring 15.
- a connector 16 is used for the fuel injector 1- provided here as an example with electrical control for connecting an electrical control line, not shown here.
- Fuel injector 1 presses a hold-down device, not shown here, which holds fuel injector 1 in receiving bore 7.
- the compensating element 2 has a rigid first ring 18 as well as a rigid second ring 19 and an elastic intermediate ring 20, which in the selected embodiment are non-detachably connected to one another by vulcanization of the elastic intermediate ring 20 made of rubber.
- Designs made of another elastic material, such as another elastomer or Teflon®, or bonding the elastic intermediate ring 20 to the first ring 18 and second ring 19 are also conceivable.
- a valve center axis 21 of the Fuel injector 1 shown. Because of the elastic deformation of the elastic intermediate ring 20 and a possible adaptation movement of the fuel injection valve 1 to the geometric position of the fuel inlet 11, this can deviate from a bore center axis 22 both by a distance d and also by an angle ⁇ .
- FIG. 2 shows an enlarged view of section II in FIG. 1.
- the nozzle body 5 a housing section 23 of the fuel injector 1 with a larger diameter and a conical shoulder 24 of the fuel injector 1 are shown.
- the compensating element 2 is shown in section.
- the rigid first ring 18 has an inner conical surface 25 which bears against the conical shoulder 24 of the fuel injector 1.
- the rigid second ring 19 has a flat annular surface 26 which bears against a step 27 of the receiving bore 7.
- the elastic intermediate ring 20 permanently connects the rigid first ring 18 and the rigid second ring 19. Between the nozzle body 5 and the receiving bore 7 there is an annular gap 10. Both the intermediate ring 20 and the second ring 19 have a largely rectangular cross section.
- the fuel injector 1 is advantageously centered on the rigid first ring 18 by the conical shoulder 24 and the conical surface 25 and can also transmit radial forces thereon to the valve center axis 21.
- the fuel injection valve 1 automatically adjusts to the necessary tilt angle ⁇ by one-sidedly greater compression of the elastic intermediate ring 20 and to the required distance d of a radial displacement by the force transmitted by the fuel injection valve 1, so that the fuel inlet 11 also the fuel injector 1 is connected without voltage.
- a possible height difference can also be compensated for by full compression of the elastic intermediate ring 20 over its entire circumference.
- the rigid first ring 18 is preferably radially displaceable with respect to its center with respect to the rigid second ring 19 with respect to its center by elastic deformation of the elastic intermediate ring 20.
- the rigid first ring 18 can preferably be tilted with respect to a center axis relative to the rigid second ring 19 with respect to a center axis through this by elastic deformation of the elastic intermediate ring 20.
- the elastic intermediate ring 20 of the compensating element 2 likewise advantageously reduces the transmission of structure-borne noise, vibrations and heat between the cylinder head 4 and the fuel injection valve 1.
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
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01962601A EP1309797B1 (de) | 2000-08-09 | 2001-08-03 | Ausgleichselement für ein brennstoffeinspritzventil |
JP2002517974A JP2004506136A (ja) | 2000-08-09 | 2001-08-03 | 燃料噴射弁のための補償エレメント |
US10/344,311 US6899087B2 (en) | 2000-08-09 | 2001-08-03 | Compensating element for a fuel injector valve |
DE50104417T DE50104417D1 (de) | 2000-08-09 | 2001-08-03 | Ausgleichselement für ein brennstoffeinspritzventil |
KR10-2003-7001601A KR20030023735A (ko) | 2000-08-09 | 2001-08-03 | 연료 분사 밸브용 보상 엘리먼트 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10038763A DE10038763A1 (de) | 2000-08-09 | 2000-08-09 | Ausgleichselement für ein Brennstoffeinspritzventil |
DE10038763.2 | 2000-08-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002012718A1 true WO2002012718A1 (de) | 2002-02-14 |
Family
ID=7651781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/002967 WO2002012718A1 (de) | 2000-08-09 | 2001-08-03 | Ausgleichselement für ein brennstoffeinspritzventil |
Country Status (8)
Country | Link |
---|---|
US (1) | US6899087B2 (de) |
EP (1) | EP1309797B1 (de) |
JP (1) | JP2004506136A (de) |
KR (1) | KR20030023735A (de) |
CN (1) | CN1446288A (de) |
CZ (1) | CZ2003389A3 (de) |
DE (2) | DE10038763A1 (de) |
WO (1) | WO2002012718A1 (de) |
Cited By (2)
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US8763588B2 (en) | 2010-03-30 | 2014-07-01 | Toyota Jidosha Kabushiki Kaisha | Vibration insulator for fuel injection valve, and support structure for fuel injection valve |
CN104024625A (zh) * | 2011-12-20 | 2014-09-03 | 罗伯特·博世有限公司 | 用于燃料喷射装置的脱耦元件 |
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DE10108466A1 (de) * | 2001-02-22 | 2002-09-05 | Bosch Gmbh Robert | Ausgleichselement für ein Brennstoffeinspritzventil |
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US7334571B1 (en) * | 2006-08-31 | 2008-02-26 | Gm Global Technology Operations, Inc. | Isolation system for high pressure spark ignition direct injection fuel delivery components |
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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 |
DE102008032385B4 (de) | 2008-07-09 | 2018-03-29 | Audi Ag | Hochdruckeinspritzanordnung für eine direkteinspritzende Brennkraftmaschine |
US7942132B2 (en) * | 2008-07-17 | 2011-05-17 | Robert Bosch Gmbh | In-line noise filtering device for fuel system |
DE102008054591A1 (de) | 2008-12-12 | 2010-06-17 | Robert Bosch Gmbh | Entkopplungselement für eine Brennstoffeinspritzvorrichtung |
US7823565B2 (en) * | 2009-01-14 | 2010-11-02 | Ford Global Technologies | Fuel injection system for internal combustion engine with injector isolator ring |
US7827964B2 (en) * | 2009-01-14 | 2010-11-09 | Ford Global Technologies | Fuel injection system for internal combustion engine with injector isolator |
CN101592107B (zh) * | 2009-04-24 | 2011-06-15 | 靳北彪 | 发动机用壳体形变燃油喷射器 |
CN101555852B (zh) * | 2009-04-30 | 2011-07-20 | 靳北彪 | 发动机用直控式壳体形变流体喷射器 |
US8069842B2 (en) * | 2009-07-02 | 2011-12-06 | Robert Bosch Gmbh | Injector mounting assembly |
JP5331633B2 (ja) * | 2009-09-17 | 2013-10-30 | 日立オートモティブシステムズ株式会社 | 燃料噴射弁 |
DE102009057406A1 (de) * | 2009-12-08 | 2011-06-09 | Continental Automotive Gmbh | Einspritzventil und Anordnung aus einem Einspritzventil und einem Zylinderkopf einer Brennkraftmaschine |
US9284932B2 (en) | 2010-03-25 | 2016-03-15 | Denso International America, Inc. | Mounting structure for fuel injector |
US20110265767A1 (en) * | 2010-05-03 | 2011-11-03 | Delphi Technologies, Inc. | Isolater for fuel injector |
US8978624B2 (en) | 2010-07-30 | 2015-03-17 | Toyota Jidosha Kabushiki Kaisha | Vibration damping insulator for fuel injection valve |
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 |
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 |
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JP6081095B2 (ja) * | 2012-07-17 | 2017-02-15 | Nok株式会社 | シール構造 |
DE102012221134A1 (de) * | 2012-11-20 | 2014-05-22 | Robert Bosch Gmbh | Anordnung für eine Brennstoffeinspritzanlage mit einem Brennstoffeinspritzventil und einem Entkoppelelement |
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US20160160822A1 (en) * | 2014-12-04 | 2016-06-09 | Keihin Corporation | Vibration insulating structure of fuel injection valve in internal combustion engine |
JP6251224B2 (ja) * | 2014-12-04 | 2017-12-20 | 株式会社ケーヒン | 内燃機関における燃料噴射弁の防振構造 |
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 |
DE102016211689A1 (de) * | 2016-06-29 | 2018-01-04 | Robert Bosch Gmbh | Injektor mit Dämpfungselement |
DE102016225706A1 (de) * | 2016-12-21 | 2018-06-21 | Robert Bosch Gmbh | Ventil zum Zumessen eines Fluids |
DE102016225956A1 (de) | 2016-12-22 | 2018-06-28 | Robert Bosch Gmbh | Entkopplungselement für eine Brennstoffeinspritzvorrichtung |
CN107299872A (zh) * | 2017-06-21 | 2017-10-27 | 重庆长安汽车股份有限公司 | 一种有效降低汽油直喷发动机工作噪音的喷油器支撑环 |
DE102017218002A1 (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 |
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DE102017220248A1 (de) | 2017-11-14 | 2019-05-16 | Robert Bosch Gmbh | Brennstoffeinspritzvorrichtung |
DE102017221203A1 (de) | 2017-11-27 | 2019-05-29 | Hyundai Motor Company | Kraftstoffeinspritzsystem und Verfahren zum Betreiben eines Kraftstoffeinspritzsystems |
US11174825B2 (en) * | 2019-02-11 | 2021-11-16 | Caterpillar Inc. | Seal configuration for fuel injector |
CN110617155A (zh) * | 2019-09-26 | 2019-12-27 | 安徽全柴动力股份有限公司 | 一种适用于四气门柴油机的电控喷油器总成 |
DE102020214113A1 (de) | 2020-11-10 | 2022-05-12 | Robert Bosch Gesellschaft mit beschränkter Haftung | Brennstoffeinspritzvorrichtung |
JP7476827B2 (ja) * | 2021-03-12 | 2024-05-01 | トヨタ自動車株式会社 | 燃料噴射装置用制振インシュレータ |
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 |
DE102022001464B4 (de) * | 2022-04-26 | 2023-11-02 | Deutz Aktiengesellschaft | Zylinderkopf für eine Brennkraftmaschine |
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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 |
EP0636820A1 (de) * | 1993-07-28 | 1995-02-01 | TOYO SEAL INDUSTRIES,Co.,Ltd. | Lagerdichtungsplatte und ihr Herstellungsverfahren |
DE19735665A1 (de) * | 1997-06-25 | 1999-01-07 | Bosch Gmbh Robert | Brennstoffeinspritzanlage |
DE19743103A1 (de) * | 1997-09-30 | 1999-04-01 | Bosch Gmbh Robert | Wärmeschutzhülse |
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EP0969203A1 (de) * | 1998-07-01 | 2000-01-05 | MAGNETI MARELLI S.p.A. | Kupplungssystem zwischen Zylinderkopf, Einspritzventil und Brennstoffverteilerleitung |
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US2100366A (en) * | 1935-01-05 | 1937-11-30 | Tyler Stephen Leslie | Valve |
JPS5910794A (ja) | 1982-07-08 | 1984-01-20 | Matsushita Seiko Co Ltd | 流体圧縮搬送装置 |
DE19962968A1 (de) * | 1999-12-24 | 2001-06-28 | Bosch Gmbh Robert | Ausgleichselement |
DE10108467A1 (de) * | 2001-02-22 | 2002-09-05 | Bosch Gmbh Robert | Befestigungsvorrichtung |
-
2000
- 2000-08-09 DE DE10038763A patent/DE10038763A1/de not_active Withdrawn
-
2001
- 2001-08-03 CN CN01813926A patent/CN1446288A/zh active Pending
- 2001-08-03 WO PCT/DE2001/002967 patent/WO2002012718A1/de not_active Application Discontinuation
- 2001-08-03 DE DE50104417T patent/DE50104417D1/de not_active Expired - Lifetime
- 2001-08-03 KR KR10-2003-7001601A patent/KR20030023735A/ko not_active Application Discontinuation
- 2001-08-03 JP JP2002517974A patent/JP2004506136A/ja active Pending
- 2001-08-03 EP EP01962601A patent/EP1309797B1/de not_active Expired - Lifetime
- 2001-08-03 US US10/344,311 patent/US6899087B2/en not_active Expired - Fee Related
- 2001-08-03 CZ CZ2003389A patent/CZ2003389A3/cs unknown
Patent Citations (7)
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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 |
EP0636820A1 (de) * | 1993-07-28 | 1995-02-01 | TOYO SEAL INDUSTRIES,Co.,Ltd. | Lagerdichtungsplatte und ihr Herstellungsverfahren |
DE19735665A1 (de) * | 1997-06-25 | 1999-01-07 | Bosch Gmbh Robert | Brennstoffeinspritzanlage |
DE19743103A1 (de) * | 1997-09-30 | 1999-04-01 | Bosch Gmbh Robert | Wärmeschutzhülse |
JPH11210885A (ja) * | 1998-01-20 | 1999-08-03 | Marusan:Kk | 積層構造ガスケット |
JPH11210886A (ja) * | 1998-01-23 | 1999-08-03 | Nok Corp | ガスケット |
EP0969203A1 (de) * | 1998-07-01 | 2000-01-05 | MAGNETI MARELLI S.p.A. | Kupplungssystem zwischen Zylinderkopf, Einspritzventil und Brennstoffverteilerleitung |
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Title |
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PATENT ABSTRACTS OF JAPAN vol. 018, no. 212 (M - 1593) 15 April 1994 (1994-04-15) * |
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 13 30 November 1999 (1999-11-30) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8763588B2 (en) | 2010-03-30 | 2014-07-01 | Toyota Jidosha Kabushiki Kaisha | Vibration insulator for fuel injection valve, and support structure for fuel injection valve |
CN104024625A (zh) * | 2011-12-20 | 2014-09-03 | 罗伯特·博世有限公司 | 用于燃料喷射装置的脱耦元件 |
Also Published As
Publication number | Publication date |
---|---|
DE10038763A1 (de) | 2002-02-21 |
EP1309797B1 (de) | 2004-11-03 |
CN1446288A (zh) | 2003-10-01 |
KR20030023735A (ko) | 2003-03-19 |
JP2004506136A (ja) | 2004-02-26 |
DE50104417D1 (de) | 2004-12-09 |
US6899087B2 (en) | 2005-05-31 |
CZ2003389A3 (cs) | 2004-09-15 |
US20040020470A1 (en) | 2004-02-05 |
EP1309797A1 (de) | 2003-05-14 |
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