EP1706626A2 - Element d'appui - Google Patents

Element d'appui

Info

Publication number
EP1706626A2
EP1706626A2 EP04817133A EP04817133A EP1706626A2 EP 1706626 A2 EP1706626 A2 EP 1706626A2 EP 04817133 A EP04817133 A EP 04817133A EP 04817133 A EP04817133 A EP 04817133A EP 1706626 A2 EP1706626 A2 EP 1706626A2
Authority
EP
European Patent Office
Prior art keywords
support element
element according
tabs
fuel
injection valve
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
EP04817133A
Other languages
German (de)
English (en)
Other versions
EP1706626B1 (fr
Inventor
Martin Scheffel
Werner Berger
Anh-Tuan Hoang
Jens Pohlmann
Martin BÜHNER
Thomas FRÖHNER
Cedric Olivier
Martin Andorfer
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1706626A2 publication Critical patent/EP1706626A2/fr
Application granted granted Critical
Publication of EP1706626B1 publication Critical patent/EP1706626B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • 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
    • 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
    • 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
    • F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
    • 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
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/803—Fuel injection apparatus manufacture, repair or assembly using clamp elements and fastening means; e.g. bolts or screws
    • 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
    • F02M2200/853—Mounting of fuel injection apparatus involving use of quick-acting mechanism, e.g. clips
    • 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
    • F02M2200/856—Mounting of fuel injection apparatus characterised by mounting injector to fuel or common rail, or vice versa

Definitions

  • the invention is based on a support element for spacing a fuel distributor line from a fuel injection valve used in a cylinder head of an internal combustion engine according to the preamble of the main claim.
  • a disadvantage of the fastening device known from DE 29 26 490 AI is, in particular, the bracing effect of the various mounting parts on the fuel injector.
  • the force flow generated in the fuel injector leads to deformations and thus to changes in the stroke of the valve needle until jamming and to a pressure or bending load on the housing parts, which are generally thin-walled and welded to one another at several points.
  • each fastening measure leads, for example, to an increase in the radial expansion of the fuel injection valve, and thus to an increased space requirement during installation, due to a support collar.
  • the support element according to the invention for a fuel injection valve with the characterizing features of the main claim has the advantage that the fuel distributor line is supported on the fuel injection valve without radial force via the support element according to the invention, and thus tension and subsequent damage to the fuel injection valve and the connection of the fuel distribution line are eliminated.
  • the support element ensures, through appropriately designed brackets and tabs, both a transfer of the hold-down force of the fuel rail to the fuel injector and a flexible fixation to compensate for tolerances and offsets.
  • the support element can be produced in a simple manner by stamping from sheet metal.
  • Punched-out recesses advantageously ensure a secure fixation of the support element on the fuel injection valve and simple support of the fuel distributor line while being easy to manufacture.
  • Different lug shapes can advantageously be designed in such a way that a more or less strong elastic and plastic deformation enables a support between the fuel distributor line and the fuel injection valve that is optimized depending on the installation situation.
  • FIG. 1A-D show various schematic views of a first exemplary embodiment of a support element designed according to the invention for a fuel injector
  • Fig. 2 is a schematic perspective view of a second embodiment of a support element designed according to the invention.
  • Fig. 3 is a schematic perspective view of a third embodiment of a support element designed according to the invention. Description of the design examples
  • FIGS. 1A to 1D show different schematic views of a first exemplary embodiment of a support element 3 designed according to the invention for fixing a fuel injection valve 1 in a cylinder head 12 of an internal combustion engine and for connecting the fuel injection valve 1 to a fuel distributor line 2.
  • FIG. 1A shows a schematic, partially sectioned perspective view of the
  • the fuel injection valve 1 is designed in the form of a direct injection fuel injection valve 1, which can be used for the direct injection of fuel into a combustion chamber of a spark-ignition internal combustion engine, which is not shown in any more detail, in particular a mixture-compression-ignition engine, in a valve receptacle of the cylinder head 12.
  • the valve seat can also be provided on a seat of a suction pipe, not shown.
  • the fuel injection valve 1 has, on an inlet-side end 4, a plug connection to a receiving connector of a fuel distributor line 2, which is sealed by a seal 5 between the fuel distributor line 2 and a supply connector 6 of the fuel injector 1.
  • the fuel injector 1 has an electrical connection 7 for the electrical contacting for actuating the fuel injector 1.
  • the support element 3 is provided according to the invention.
  • the support element 3 consists of a bracket 8, which is on the one hand on a shoulder 9 of the fuel injector 1 and on the other hand Shoulder 10 of the fuel rail 2 is supported.
  • the clamp 8 is slotted in the area of the electrical connection 7 of the fuel injection valve 1 in order to facilitate assembly.
  • FIG. 1B shows how the clamp 8 is placed on the fuel injection valve 1 and is supported on the shoulder 9.
  • brackets 11 and two brackets 18 are connected to the bracket 8, as can be seen in particular in FIG. 1D, and provide a resilient bracing of the fuel distributor line 2 against the fuel injector 1.
  • the brackets 11 are for a radial clamping action and the bracket 18 responsible for the axial elasticity.
  • the tabs 11 are supported on the shoulder 9 of the fuel injector 1, while the brackets 18 rest on the shoulder 10 of the fuel rail 2.
  • the bracket 18 are due to their shape and their approach to the bracket 8 so that they can be plastically and elastically deformed under axial load and thereby introduce an axial force into the fuel injector 1.
  • IC shows a top view of the first exemplary embodiment of the support element 3 designed according to the invention in the position mounted on the fuel injection valve 1.
  • the support element 3 on the one hand not round, but in a roughly rectangular or square cross-sectional shape, whereby additional edges 16, which form the end of the clamp 8 on both sides of a slit 15, are folded radially inward in the direction of the fuel injector 1. It is thereby achieved that the edges 16 rest over their entire axial length on the fuel injection valve 1 and thereby prevent the support element 3 from slipping.
  • the electrical connection 7 of the fuel injection valve 1 is located in the area of the slot 15.
  • FIGS. 1A-D shows a second exemplary embodiment of a support element 3 designed according to the invention.
  • This has differently shaped tabs 11 which are connected to the bracket 8.
  • two tabs 11b lying opposite one another are tongue-shaped, while a third tab 11a has an approximately onion-like shape.
  • a reverse distribution in the form of two onion-shaped tabs 11a and a tongue-shaped tab 11b is also possible.
  • a recess 17 in the tab 11a ensures a higher elasticity of the tab 11a and thus a greater tolerance to tension.
  • the edges 16 can be configured as in FIGS. 1A-D.
  • FIG. 3 shows a third exemplary embodiment of a support element 3 designed according to the invention.
  • This has tabs 11, which represent a combined shape of the tongue-shaped tabs 11b and the onion-shaped tab 11a of the second exemplary embodiment described above.
  • the shape shown is easier to manufacture, but has a high elasticity and flexibility to balance radial and axial forces.
  • the edges 16 can also be configured as in FIGS. 1A-D.
  • the invention is not limited to the exemplary embodiments 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.
  • the support elements 3 shown in the figures can also be installed in the reverse installation position, so that the brackets 18 are supported on the shoulder 9 of the fuel injection valve 1 instead of on the shoulder 10 of the fuel distributor line 2. All features of the invention can be combined with one another as desired.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un élément d'appui pour assurer le maintien réciproque d'une soupape d'injection de carburant (1) dans une cavité de réception de soupape, notamment la cavité de réception de soupape d'une culasse (12) de moteur à combustion interne et de soupape d'injection de carburant (1) au niveau d'une conduite de distribution de carburant (2). Ledit élément d'appui comporte une bride de fixation (8), ainsi que des languettes (11) et des étriers (18) formés dessus.
EP04817133.4A 2003-12-17 2004-11-12 Element d'appui Expired - Fee Related EP1706626B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10359299A DE10359299A1 (de) 2003-12-17 2003-12-17 Stützelement
PCT/EP2004/052943 WO2005059348A2 (fr) 2003-12-17 2004-11-12 Element d'appui

Publications (2)

Publication Number Publication Date
EP1706626A2 true EP1706626A2 (fr) 2006-10-04
EP1706626B1 EP1706626B1 (fr) 2017-03-08

Family

ID=34683473

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04817133.4A Expired - Fee Related EP1706626B1 (fr) 2003-12-17 2004-11-12 Element d'appui

Country Status (5)

Country Link
US (1) US7581530B2 (fr)
EP (1) EP1706626B1 (fr)
JP (1) JP4550741B2 (fr)
DE (1) DE10359299A1 (fr)
WO (1) WO2005059348A2 (fr)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10256668A1 (de) * 2002-12-04 2004-07-29 Robert Bosch Gmbh Stützelement
DE102004015042A1 (de) * 2004-03-26 2005-10-13 Robert Bosch Gmbh Stützelement
JP4862778B2 (ja) * 2007-08-15 2012-01-25 日産自動車株式会社 燃料ダンパ固定用クリップ
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
JP5134629B2 (ja) 2007-11-19 2013-01-30 三菱重工業株式会社 風車翼およびこれを用いる風力発電装置
EP2068022A1 (fr) 2007-12-07 2009-06-10 Continental Automotive GmbH Agencement de couplage et ensemble de connexion
US8813722B2 (en) 2010-08-09 2014-08-26 Hitachi Automotive Products (Usa) Fuel injector holder
US8646434B2 (en) * 2010-08-09 2014-02-11 Hitachi Automotive Systems Americas Inc. Anti-rotation clip for a twist lock fuel injector
US9803604B2 (en) * 2011-11-29 2017-10-31 Piolax, Inc. Mounting tool with plurality of ring band portions with concave portions and notches for clamping an injector
JP5822271B2 (ja) * 2012-02-27 2015-11-24 株式会社ケーヒン 燃料噴射弁の支持構造
JP5822272B2 (ja) * 2012-02-27 2015-11-24 株式会社ケーヒン 燃料噴射弁の支持構造
WO2013167447A1 (fr) * 2012-05-08 2013-11-14 Continental Automotive Gmbh Dispositif d'accouplement et ensemble injecteur de carburant
JP6074793B2 (ja) * 2012-11-05 2017-02-08 株式会社ケーヒン 燃料噴射弁の支持構造
EP3309385A1 (fr) * 2016-10-12 2018-04-18 Continental Automotive GmbH Coupelle d'injecteur, pince à ressort, ensemble d'injection de fluide et son procédé d'assemblage
DE102017213167A1 (de) 2017-07-31 2019-01-31 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102018219910A1 (de) 2018-11-21 2020-05-28 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102018220945A1 (de) 2018-12-04 2020-06-04 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102019216587A1 (de) 2019-10-29 2021-04-29 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102020202826A1 (de) 2020-03-05 2021-09-09 Robert Bosch Gesellschaft mit beschränkter Haftung Brennstoffeinspritzventil
DE102020213354A1 (de) 2020-10-22 2022-04-28 Robert Bosch Gesellschaft mit beschränkter Haftung Brennstoffeinspritzventil
DE102020213356A1 (de) 2020-10-22 2022-04-28 Robert Bosch Gesellschaft mit beschränkter Haftung Brennstoffeinspritzventil
DE102020214151A1 (de) 2020-11-11 2022-05-12 Robert Bosch Gesellschaft mit beschränkter Haftung Brennstoffeinspritzventil
DE102021212779A1 (de) 2021-11-12 2023-05-17 Robert Bosch Gesellschaft mit beschränkter Haftung Brennstoffeinspritzventil
DE102021213586A1 (de) 2021-12-01 2023-06-01 Robert Bosch Gesellschaft mit beschränkter Haftung Brennstoffeinspritzventil
DE102021213785A1 (de) 2021-12-03 2023-06-07 Robert Bosch Gesellschaft mit beschränkter Haftung Brennstoffeinspritzventil und Verfahren zu dessen Herstellung
DE102021214077A1 (de) 2021-12-09 2023-06-15 Robert Bosch Gesellschaft mit beschränkter Haftung Brennstoffeinspritzventil

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Also Published As

Publication number Publication date
JP2006521486A (ja) 2006-09-21
US20080105236A1 (en) 2008-05-08
DE10359299A1 (de) 2005-08-25
JP4550741B2 (ja) 2010-09-22
WO2005059348A2 (fr) 2005-06-30
EP1706626B1 (fr) 2017-03-08
US7581530B2 (en) 2009-09-01
WO2005059348A3 (fr) 2007-07-26

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