EP1454054A1 - Brennstoffeinspritzanlage - Google Patents
BrennstoffeinspritzanlageInfo
- Publication number
- EP1454054A1 EP1454054A1 EP02767126A EP02767126A EP1454054A1 EP 1454054 A1 EP1454054 A1 EP 1454054A1 EP 02767126 A EP02767126 A EP 02767126A EP 02767126 A EP02767126 A EP 02767126A EP 1454054 A1 EP1454054 A1 EP 1454054A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel injection
- fuel
- injection system
- inlet
- section
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
-
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/004—Joints; Sealings
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
- F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
Definitions
- the invention relates to a fuel injection system for injecting fuel into an internal combustion engine according to the preamble of the main claim.
- DE-OS 28 29 057 discloses a fuel injection system for supplying fuel to a mixed-compression, spark-ignition internal combustion engine as a function of operating parameters.
- the fuel injection system comprises a metal fuel distributor line, which is connected to at least one fuel injection valve via at least one branch line, the branch line being designed as a metal tube and connected to the fuel injection valve by a screw connection. Easily bendable metal is used as the branch line material.
- a metallic thin-walled bellows in the form of a corrugated tube bellows is provided, by means of which a lateral offset between the attachment point of the branch line on the fuel distributor line and the installation position of the fuel injection valve is compensated.
- a disadvantage of the fuel injection system known from DE-OS _ 28 29 057 is that the screw connection requires special shapes of the corrugated tube bellows. 'In particular, it is disadvantageous that the corrugated tube bellows is not releasably connected to the screw connection or the fuel distributor line. A simple, quick assembly of the fuel distributor line is made more difficult.
- a pipeline connection in the form of a corrugated pipe is known from US Pat. No. 2,014,355, which is intended to prevent or reduce the transmission of vibrations.
- the outside of the corrugated pipe is surrounded by a casing which does not touch the corrugated pipe and which is rigidly connected at one end to the one pipe section.
- the sleeve is sealed off from the other tube section by a flexible seal.
- a flange of a fastening nut engages in the corrugation at the end of the corrugated pipe.
- the corrugated pipe is fastened to subsequent pipe sections with the fastening nut.
- a disadvantage of the known prior art is that the arrangement is multi-part and does not allow quick, easy installation.
- the fuel injection system according to the invention with the characterizing features of the main claim has the advantage that the corrugated tube is designed as a simple, universally applicable component that can be installed by inserting. Due to the pressure force of the sealing means on a sealing line, a pre-assembly is also possible, in which the corrugated pipe according to the invention is already inserted into the inlet of the fuel distribution line and is connected to it together with the fuel injection valves.
- the corrugated pipe according to the invention is inexpensive to manufacture and can be used for a large number of different fuel injection systems.
- the end sections are advantageously surrounded radially outwards by the guide sections and the guide sections have a conical insertion region.
- the sealing means can consist of an elastomer ring arranged in a groove and supported against a support ring.
- An elastomer ring is held in a groove in an advantageously simple manner by its inherent tension.
- a locking plate arranged on the guide section advantageously engages in a first corrugation of the corrugated tube.
- the first corrugation of the corrugated tube is advantageously in contact with a gradation of the inlet and corresponding to the inlet section.
- the hold-down force for the fuel injector can be exerted on the corrugated pipe by the guidance on the guide sections, since lateral sliding is prevented.
- the seal is not burdened by the hold-down force.
- FIG. 1 is a partially sectioned illustration of a first embodiment of a fuel injection system according to the invention in the plane of a fuel injector and a corrugated pipe, and
- FIG. 2 shows an embodiment of the fuel injection system according to the invention with a locking plate in the same view as in FIG. 1.
- Fig. 1 shows a partially sectioned representation of a 'first embodiment of a fuel injection system 1 according to the invention in the plane of a fuel injection valve 2 and a corrugated tube 3.
- the corrugated tube 3 shown in section is with a first end portion 4a of two identical end portions 4a, 4b in a first Guide section 5a of an inlet 6 of a fuel distribution line, not shown here, introduced.
- the second end section 4b is inserted into a second guide section 5b, which is formed on an inlet section 9 of the fuel injection valve 2.
- the fuel injector 2 is inserted into a bore 7 of a cylinder head 8 of an internal combustion engine and section 9 is shown cut in the area of the inlet. * Compared to the bore 7, the fuel injector 2 is by a sealing ring 11 z. B. sealed from elastomer.
- a conical insertion section 12 is formed on the inlet section 9.
- a corrugation 13 initially lying on the second end section 4b abuts a step 14 of the inlet section 9.
- a conical insertion section 15 is also formed on the inlet 6.
- Each of the end sections 4a, 4b is made of - a sealing ring 17 Elastomer sealed against the respective guide section 5a ' -, 5b.
- the sealing ring 17 is arranged in a groove 18 and is supported by a support ring 19.
- the corrugated tube 3 of the fuel injection system 1 according to the invention can always be constructed identically in the case of fuel injection systems 2 which are adapted to different installation conditions and can therefore be produced inexpensively as a mass part.
- a simple assembly by plugging in is possible, the corrugated tube 3 being held on the inlet 6 or the inlet section 9 during the further assembly by the deformation tension of the sealing ring 17 relative to the guide section 5a, 5b.
- the corrugated tube 3 cannot be inserted incorrectly due to its symmetrical structure. But it is also an asymmetrical structure or a fixed connection between fuel injector 2 and corrugated tube 21 z. B. possible by laser welding.
- FIG. 2 shows a further exemplary embodiment of a fuel injection system 1 according to the invention with a locking plate 20 in the same view as the corresponding fuel injection system in FIG. 1.
- a corrugated tube 21 shown in section has a smaller diameter than the corrugated tube shown in FIG. 1.
- the first end section 4a is inserted into the first guide section 5a of the inlet 6 of the fuel distributor line, not shown here, and the second end section 4b is inserted into second guide section 5b of fuel injector 2.
- Each of the end portions 4a, 4b is arranged by the ⁇ in the groove 18 and supported by the support ring 19, sealing ring 17 is sealed against the respective guide portion 5a, 5b.
- the fuel injection valve 2 is sealed in the 'bore 7 of the' cylinder head 8 of the internal combustion engine and by the arranged in the groove 10 of sealing ring 11 made of elastomer.
- the locking plate 20 not only transmits a hold-down force, but also prevents the respective end section 4a, 4b from slipping out of the corresponding guide section 5a, 5b. If only one of the locking plates 20 is removed during disassembly, the corrugated tube 21 is held with its other end section 4a, 4b on the fuel distributor line or the fuel injection valve 2 and cannot be lost.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10158788A DE10158788A1 (de) | 2001-11-30 | 2001-11-30 | Brennstoffeinspritzanlage |
DE10158788 | 2001-11-30 | ||
PCT/DE2002/003096 WO2003048561A1 (de) | 2001-11-30 | 2002-08-23 | Brennstoffeinspritzanlage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1454054A1 true EP1454054A1 (de) | 2004-09-08 |
EP1454054B1 EP1454054B1 (de) | 2008-02-13 |
Family
ID=7707528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02767126A Expired - Lifetime EP1454054B1 (de) | 2001-11-30 | 2002-08-23 | Brennstoffeinspritzanlage |
Country Status (7)
Country | Link |
---|---|
US (1) | US6871634B2 (de) |
EP (1) | EP1454054B1 (de) |
JP (1) | JP4418678B2 (de) |
KR (1) | KR20040063159A (de) |
AT (1) | ATE386208T1 (de) |
DE (2) | DE10158788A1 (de) |
WO (1) | WO2003048561A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004036626A1 (de) * | 2004-07-29 | 2006-03-23 | Robert Bosch Gmbh | Brennstoffeinspritzsystem |
JP4634765B2 (ja) * | 2004-09-16 | 2011-02-16 | 日産自動車株式会社 | 燃料噴射弁取付構造 |
US7107969B2 (en) * | 2004-09-28 | 2006-09-19 | Ford Global Technologies, Llc | Twist-lock fuel injector assembly |
US20060232061A1 (en) * | 2005-04-15 | 2006-10-19 | Yasushi Fujiwara | Clamp device |
DE102005051005A1 (de) * | 2005-10-25 | 2007-04-26 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
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 |
JP4584895B2 (ja) * | 2006-10-06 | 2010-11-24 | 日立オートモティブシステムズ株式会社 | 電磁式燃料噴射弁 |
US7406946B1 (en) * | 2007-04-02 | 2008-08-05 | Hitachi, Ltd. | Method and apparatus for attenuating fuel pump noise in a direct injection internal combustion chamber |
US7527038B2 (en) * | 2007-04-02 | 2009-05-05 | Hitachi, Ltd | Method and apparatus for attenuating fuel pump noise in a direct injection internal combustion chamber |
DE102007035714A1 (de) | 2007-07-30 | 2009-02-05 | Robert Bosch Gmbh | Brennstoff-Einspritzanlage mit Ausgleichselement |
JP4558021B2 (ja) * | 2007-09-06 | 2010-10-06 | 日立オートモティブシステムズ株式会社 | 燃料噴射弁およびその支持方法 |
US20110265767A1 (en) * | 2010-05-03 | 2011-11-03 | Delphi Technologies, Inc. | Isolater for fuel injector |
CN113895419B (zh) * | 2021-11-25 | 2023-08-04 | 中车大连机车车辆有限公司 | 城轨车辆制动系统空簧供风管路连接结构 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2014355A (en) | 1933-02-27 | 1935-09-10 | United States Gypsum Co | Vibration isolating pipe connection |
DE2829057A1 (de) * | 1978-07-01 | 1980-01-10 | Bosch Gmbh Robert | Kraftstoffeinspritzanlage |
DE2832299A1 (de) * | 1978-07-22 | 1980-01-31 | Bosch Gmbh Robert | Geraeuschdaempfungseinrichtung |
JPS63100262A (ja) * | 1986-10-16 | 1988-05-02 | Aisan Ind Co Ltd | 燃料供給系における脈動減衰装置 |
US4877187A (en) * | 1987-10-23 | 1989-10-31 | Allied-Signal Inc. | Unit injector for gasoline engines |
DE19725076A1 (de) * | 1997-06-13 | 1998-12-17 | Bosch Gmbh Robert | Brennstoffeinspritzanlage |
JP2001090631A (ja) * | 1999-09-24 | 2001-04-03 | Otics Corp | 燃料分配管 |
AT4632U1 (de) * | 2000-05-25 | 2001-09-25 | Avl List Gmbh | Einspritzsystem für eine brennkraftmaschine |
DE10157010A1 (de) * | 2001-11-21 | 2003-06-05 | Bosch Gmbh Robert | Brennstoffeinspritzanlage |
-
2001
- 2001-11-30 DE DE10158788A patent/DE10158788A1/de not_active Withdrawn
-
2002
- 2002-08-23 JP JP2003549722A patent/JP4418678B2/ja not_active Expired - Fee Related
- 2002-08-23 KR KR10-2004-7008129A patent/KR20040063159A/ko not_active Application Discontinuation
- 2002-08-23 AT AT02767126T patent/ATE386208T1/de not_active IP Right Cessation
- 2002-08-23 DE DE50211702T patent/DE50211702D1/de not_active Expired - Lifetime
- 2002-08-23 US US10/470,521 patent/US6871634B2/en not_active Expired - Fee Related
- 2002-08-23 WO PCT/DE2002/003096 patent/WO2003048561A1/de active IP Right Grant
- 2002-08-23 EP EP02767126A patent/EP1454054B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO03048561A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE386208T1 (de) | 2008-03-15 |
DE50211702D1 (de) | 2008-03-27 |
KR20040063159A (ko) | 2004-07-12 |
US6871634B2 (en) | 2005-03-29 |
DE10158788A1 (de) | 2003-06-12 |
US20040112338A1 (en) | 2004-06-17 |
EP1454054B1 (de) | 2008-02-13 |
JP2005511954A (ja) | 2005-04-28 |
JP4418678B2 (ja) | 2010-02-17 |
WO2003048561A1 (de) | 2003-06-12 |
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