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EP2006530A1 - Rampe commune - Google Patents

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Publication number
EP2006530A1
EP2006530A1 EP08002621A EP08002621A EP2006530A1 EP 2006530 A1 EP2006530 A1 EP 2006530A1 EP 08002621 A EP08002621 A EP 08002621A EP 08002621 A EP08002621 A EP 08002621A EP 2006530 A1 EP2006530 A1 EP 2006530A1
Authority
EP
European Patent Office
Prior art keywords
injector
connection adapter
fuel
connection
fuel distributor
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
Application number
EP08002621A
Other languages
German (de)
English (en)
Other versions
EP2006530B1 (fr
Inventor
Markus Mehring
Georg Dertinger
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.)
Benteler Automobiltechnik GmbH
Original Assignee
Benteler Automobiltechnik 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 Benteler Automobiltechnik GmbH filed Critical Benteler Automobiltechnik GmbH
Publication of EP2006530A1 publication Critical patent/EP2006530A1/fr
Application granted granted Critical
Publication of EP2006530B1 publication Critical patent/EP2006530B1/fr
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • 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
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—Common rails

Definitions

  • the invention relates to a fuel distributor according to the features in the preamble of claim 1.
  • Such fuel distributors are used in fuel distribution systems of internal combustion engines.
  • This statically compressed fuel is stored in the manifold and distributed from the manifold via injector connections supplied to the respective injectors a cylinder bank.
  • a fuel distributor is known with a one-piece designed as a casting manifold.
  • connection nipple In the from the DE 197 44 762 A1 known proposal, the manifold on welded connection nipple. To the connection nipple pressure lines can be connected for the supply of fuel to the injectors.
  • Known fuel distributors are equipped with one-piece injector connections. These are usually designed as precision casting, rotary milled part, extruded part, sintered part or as a deep-drawn part. To achieve the fitting dimensions and surface requirements in the sealing area of the injector connections machining operations are usually required. Such machining operations are associated with high costs. In addition, chip residues may remain, which may affect the application technology required cleanliness. A not inconsiderable role is played by the significantly higher material content of extruded parts, turned milled parts and cast parts. To ensure sufficient wall thicknesses, especially in areas of curvature, these component components are initially oversized and are brought to final dimensions by machining. This is labor-intensive and cost-intensive and requires a comparatively high use of material.
  • the invention is based on the object of the prior art, to provide a cost-effective and application or operationally improved fuel rail.
  • the crux of the invention is the measure that the injector connections of the fuel distributor according to the invention each have a connection adapter and an injector receptacle joined to the connection adapter.
  • Connection adapter and Injektor technique are manufactured separately, preferably as a deep-drawn part without machining and with procedurally optimized lowest material usage.
  • the high tolerances required in the sealing area can also be easily produced without cutting.
  • the bipartite nature of the injector port also allows a cost effective and easy adjustment of the distance between the injector receptacle and the manifold.
  • connection adapter and the injector receptacle overlap in the joining area.
  • the joining can be done by welding or soldering.
  • a soldering connection is preferably carried out using solder rings.
  • solder paste can be omitted.
  • An adhesive connection of connection adapter and injector holder is also possible.
  • connection adapter has an enlarged diameter nozzle, in which the cup-shaped configured and in the bottom opening having an injector receptacle is used with a nozzle section.
  • a sliding press seat is achieved.
  • An injector can be connected directly to the injector holder.
  • the connection adapter has an outer radial collar at its free end. Against the radial collar, a spring can be supported, which biases a built-in injector axially so that it remains in position.
  • connection adapter and the injector receiving a sealing element can be incorporated in the joint area.
  • This can be the connection between Connection adapter and injector recording done in the manner of a sliding press seat.
  • an axial tolerance compensation is possible.
  • the injector connections can first be connected to the distributor tube by means of a thermal joining method, such as welding or soldering. The assembly of the injector receptacles on the connection adapters is then carried out after welding or soldering.
  • the sealing element is preferably arranged between the connection adapter and the injector connection in an annular groove arranged in the connection adapter.
  • a sealing element in particular, a sealing form of an O-ring is used.
  • connection adapter an adapted to the outer contour of the manifold mounting foot is provided at the manifold tube side end of the connection adapter.
  • connection adapter and the injector receptacle are preferably designed as a deep-drawn part.
  • the components can also be manufactured in other ways, for example as a rotary milled part, extruded part, forged part, cast part or as a sintered part.
  • the connection adapter and the injector receptacle can also consist of mutually different materials.
  • FIG. 1 shows a perspective view of a fuel distributor according to the invention 1.
  • the fuel rail 1 belongs to the storage injection system for an internal combustion engine.
  • the fuel rail 1 is technically referred to as a common rail.
  • the pressure generation and the force injection are coupled from each other in such storage injection systems.
  • a separate high-pressure pump continuously generates pressure. This pressure, which is built up independently of the injection sequence, is permanently available in the fuel distributor 1.
  • the fuel distributor 1 comprises a distributor tube 2 with a fuel inlet 3 and a plurality of injector ports 4. According to the number of injector ports 4, branch bores 5 are provided in the distributor tube 2, via which the fuel-conducting connection between the distributor tube 2 and the respective injector port 3 is produced.
  • the statically compressed fuel is stored in the manifold 2 and distributed via injector ports 4 to the injectors of a cylinder bank.
  • each injector port 4 is designed in two parts and has a tubular connection adapter 6 and an injector receptacle 7 attached to the connection adapter 6.
  • connection adapter 6 At Verteilerrohr salt end 8 of the connection adapter 6 is adapted to the outer contour of the manifold 2 mounting foot 9 is provided. This is integrally formed on the connection adapter 6 and allows a stable technical connection of the connection adapter 6 to the manifold 2. On the manifold 2 mounting lugs 10 are further provided, via which the manifold 2 can be set in the engine compartment of a motor vehicle.
  • the injection adapter 7 has a cup-shaped configuration and is inserted with a connection section 13 into the connection 12 of the connection adapter 6, so that the connection adapter 6 and the injector receiver 7 overlap in the joining region F.
  • the Injektorit 7 an opening 15.
  • the injector receptacle 7 has an outer radial collar 17.
  • the radial collar 17 may be supported by a spring which axially biases an injector mounted in the injector receptacle 7 so that it remains in position.
  • the injector receptacle 7 is inserted with its nozzle portion 13 in the socket 12 of the connection adapter 6 and set the required dimension A between the tube axis X of the manifold 1 relative to the upper edge 18 of the injector 7. Thereafter, the components are joined and sealed together. This is preferably done by means of soldering or welding.
  • Axial tolerances between the manifold 1 and the Injektorfact 6 and the injector itself can be compensated.
  • the distance between manifold 1 and the injector is bridged by adjusting the length of the injector port 4 and the dimension A.
  • the fuel distributor 19 comprises a distributor tube 20 with a plurality of injector connections, of which only one injector connection 21 is shown here.
  • the connection between the injector ports 21 and the manifold 20 is made via branch bores 22.
  • the Injektoranising 21 are made in two parts and each comprise a tubular connection adapter 23 and a connected to the connection adapter 23 and tightly connected Injektorfact 24.
  • connection adapter 23 has a nozzle 28 which is widened in diameter.
  • an annular groove 29 is provided for receiving a sealing element 30 in the form of an O-ring.
  • the annular groove 29 is integrally formed in the socket 28 by a circumferential, outward bulge.
  • the Injektorit 24 is configured as described above cup-shaped and has a nozzle portion 31, with which it is inserted into the socket 28 of the connection adapter 23 and held there.
  • the connection adapter 23 and the injector receptacle 24 overlap, wherein the tight connection in the joining region F is ensured by the sealing element 30 arranged here.
  • an opening 33 is provided in the bottom 32 of the injector receptacle 24.
  • the injector receptacle 24 has an outer radial collar 35, on which an injector mounted in the injector receptacle 24 can be resiliently supported.
  • connection adapter 23 can be fixed to the distributor tube 20 by means of soldering or welding. Then the injector receptacle 24 is inserted or pressed into the socket 28 of the connection adapter 23 until the required dimension A is set between the tube axis X of the distributor tube 20 relative to the upper edge 36 of the injector receptacle 24.
  • the tight connection between the Injektorit 24 and the connection adapter 23 is by the power and positive connection in the joining region F under inclusion of the sealing element 30 causes.
  • connection between connection adapter 23 and injector receptacle 24 can also be secured by adhesive.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP20080002621 2007-06-21 2008-02-13 Rampe commune Ceased EP2006530B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710029096 DE102007029096A1 (de) 2007-06-21 2007-06-21 Kraftstoffverteiler

Publications (2)

Publication Number Publication Date
EP2006530A1 true EP2006530A1 (fr) 2008-12-24
EP2006530B1 EP2006530B1 (fr) 2009-07-01

Family

ID=39831808

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080002621 Ceased EP2006530B1 (fr) 2007-06-21 2008-02-13 Rampe commune

Country Status (2)

Country Link
EP (1) EP2006530B1 (fr)
DE (2) DE102007029096A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2317118A3 (fr) * 2009-10-28 2012-11-28 Benteler Automobiltechnik GmbH Distributeur de carburant
CN103590948A (zh) * 2012-08-13 2014-02-19 大陆汽车有限公司 联接装置
CN109555628A (zh) * 2017-09-26 2019-04-02 本特勒尔汽车技术有限公司 燃料分配器
US11352993B2 (en) * 2019-12-04 2022-06-07 Benteler Automobiltechnik Gmbh Fuel distributor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016124494A1 (de) 2016-12-15 2018-06-21 Benteler Automobiltechnik Gmbh Verbindungsmodul eines Kraftstoffeinspritzsystems

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19853090A1 (de) 1998-11-18 2000-05-25 Bosch Gmbh Robert Brennstoffeinspritzanlage
US6431151B1 (en) 1997-06-25 2002-08-13 Robert Bosch Gmbh Fuel injection system
US20030080556A1 (en) 2001-11-01 2003-05-01 Siemens Automotive Corporation Compliant sealing connection for fuel components
US6604510B2 (en) 2000-10-04 2003-08-12 Siemens Automotive Corporation Fuel system including a fuel injector directly mounted to a fuel rail
EP1445474A1 (fr) * 2003-01-28 2004-08-11 Siemens VDO Automotive S.p.A. Injecteur de carburant, common rail et système d'injection de carburant

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0622140Y2 (ja) * 1988-02-15 1994-06-08 臼井国際産業株式会社 フユーエルデリバリパイプ
US5771863A (en) * 1996-10-11 1998-06-30 Siemens Electric Limited Integrated intake manifold and fuel rail with enclosed fuel filter
DE19744762A1 (de) 1997-03-18 1998-10-01 Poppe & Potthoff Gmbh & Co Einspritzeinrichtung für einen Dieselmotor
DE10247524B4 (de) 2002-10-11 2004-08-12 Siemens Ag Kraftstoffverteiler
JP4199709B2 (ja) * 2004-08-03 2008-12-17 臼井国際産業株式会社 フューエルデリバリパイプ
JP4440184B2 (ja) * 2005-08-04 2010-03-24 臼井国際産業株式会社 エンジン始動用フューエルデリバリパイプ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6431151B1 (en) 1997-06-25 2002-08-13 Robert Bosch Gmbh Fuel injection system
DE19853090A1 (de) 1998-11-18 2000-05-25 Bosch Gmbh Robert Brennstoffeinspritzanlage
US6604510B2 (en) 2000-10-04 2003-08-12 Siemens Automotive Corporation Fuel system including a fuel injector directly mounted to a fuel rail
US20030080556A1 (en) 2001-11-01 2003-05-01 Siemens Automotive Corporation Compliant sealing connection for fuel components
EP1445474A1 (fr) * 2003-01-28 2004-08-11 Siemens VDO Automotive S.p.A. Injecteur de carburant, common rail et système d'injection de carburant

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2317118A3 (fr) * 2009-10-28 2012-11-28 Benteler Automobiltechnik GmbH Distributeur de carburant
CN103590948A (zh) * 2012-08-13 2014-02-19 大陆汽车有限公司 联接装置
EP2698526A1 (fr) * 2012-08-13 2014-02-19 Continental Automotive GmbH Dispositif de couplage
KR20140021978A (ko) * 2012-08-13 2014-02-21 콘티넨탈 오토모티브 게엠베하 커플링 장치
US10480469B2 (en) 2012-08-13 2019-11-19 Continental Automotive Gmbh Coupling device
KR102051992B1 (ko) 2012-08-13 2019-12-04 콘티넨탈 오토모티브 게엠베하 커플링 장치
CN109555628A (zh) * 2017-09-26 2019-04-02 本特勒尔汽车技术有限公司 燃料分配器
US10794345B2 (en) 2017-09-26 2020-10-06 Benteler Automobiltechnik Gmbh Fuel distributor
CN109555628B (zh) * 2017-09-26 2021-02-12 本特勒尔汽车技术有限公司 燃料分配器
US11352993B2 (en) * 2019-12-04 2022-06-07 Benteler Automobiltechnik Gmbh Fuel distributor

Also Published As

Publication number Publication date
EP2006530B1 (fr) 2009-07-01
DE102007029096A1 (de) 2008-12-24
DE502008000044D1 (de) 2009-08-13

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