EP2578868A1 - Système de montage pour une buse d'injection de carburant - Google Patents

Système de montage pour une buse d'injection de carburant Download PDF

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Publication number
EP2578868A1
EP2578868A1 EP12178972.1A EP12178972A EP2578868A1 EP 2578868 A1 EP2578868 A1 EP 2578868A1 EP 12178972 A EP12178972 A EP 12178972A EP 2578868 A1 EP2578868 A1 EP 2578868A1
Authority
EP
European Patent Office
Prior art keywords
hold
side walls
down device
injection nozzle
screw opening
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
EP12178972.1A
Other languages
German (de)
English (en)
Other versions
EP2578868B1 (fr
Inventor
Wolfgang Christgen
Junichi Ichikawa
Ralph Teichgräber
Jürgen Carius
Markus Wiedmann
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP2578868A1 publication Critical patent/EP2578868A1/fr
Application granted granted Critical
Publication of EP2578868B1 publication Critical patent/EP2578868B1/fr
Active 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
    • 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
    • F02M2200/03—Fuel-injection apparatus having means for reducing or avoiding stress, e.g. the stress caused by mechanical force, by fluid pressure or by temperature variations
    • 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
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8053—Fuel injection apparatus manufacture, repair or assembly involving mechanical deformation of the apparatus or parts thereof
    • 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
    • F02M2200/855—Mounting of fuel injection apparatus using clamp elements or fastening means, e.g. bolts or screws

Definitions

  • the invention relates to a hold-down device, in particular for a fuel injection nozzle of an internal combustion engine, which has two upright side walls and a screw opening, wherein the side walls are present at their Endstirnen as clamping surfaces.
  • this object is achieved in that the hold-down, also called clamping claw, made of thin-walled steel punching-bending technology is shown, wherein the upper sides of the side walls are bridged in the section of their longitudinal center of a preferably bulged crossbar with the screw opening, so that in cross-section an inverted U Formed profile and each end is fork-like open and wherein the undersides of the side walls in the open Endstirnen exist as the clamping surfaces.
  • the side walls of the blank holder according to the invention should have a completely smooth-walled, unequipped course, which is another contribution to simplifying the component.
  • the hold-down may be designed for a tension of only one injector on a cylinder head. However, it is equally provided to fix it at each of its ends depending on an injection nozzle.
  • it is hereby to present this mirror-symmetrically with respect to its longitudinal and transverse center plane.
  • it does not matter which end of the hold-down is in contact with the cylinder head and which is in engagement with the injection nozzle.
  • the hold-down device according to the present invention may also find application outside of injection / engine manufacturing, so generally in engineering or similar areas for fixing workpieces, etc.
  • a hold-down 1 for a fuel injector 10 of an internal combustion engine Is shown in Fig. 1 a hold-down 1 for a fuel injector 10 of an internal combustion engine.
  • This hold-down 1 consists of thin-walled sheet steel and is shown punching and bending technology without machining.
  • the hold-down device 1 has two upright and straight side walls 2. Their upper sides 3 are bridged in the section of their longitudinal center 4 by an integrally connected transverse bar 5 with a central screw opening 6. In cross-section, there is thus an inverted U-profile in this section. It can be seen that the side walls 2 are bulged with the connecting them crossbar 5 from the top 3 away.
  • Each end 9, 12 of the hold-down 1 is open like a fork. Bottoms 7 of the side walls 2 at their Endstirnen 8 are formed as clamping surfaces. This area is additionally marked.
  • Fig. 2 At the other end 12 it lies on a support surface 11 extending from the cylinder head 14 of the internal combustion engine.
  • Fig. 3 serves the hold-down 1 at each of its ends 9, 12 in contact with an injection nozzle 10. For this he engages in a groove 13 of the respective injection nozzle 10 and is supported on the undersides of these.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP12178972.1A 2011-10-06 2012-08-02 Système de montage pour une buse d'injection de carburant Active EP2578868B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110084064 DE102011084064A1 (de) 2011-10-06 2011-10-06 Niederhalter für eine Kraftstoffeinspritzdüse

Publications (2)

Publication Number Publication Date
EP2578868A1 true EP2578868A1 (fr) 2013-04-10
EP2578868B1 EP2578868B1 (fr) 2014-02-12

Family

ID=46614366

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12178972.1A Active EP2578868B1 (fr) 2011-10-06 2012-08-02 Système de montage pour une buse d'injection de carburant

Country Status (4)

Country Link
EP (1) EP2578868B1 (fr)
JP (1) JP2013083258A (fr)
CN (1) CN103032231B (fr)
DE (1) DE102011084064A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2902617A1 (fr) * 2014-01-30 2015-08-05 Kabushiki Kaisha Toyota Jidoshokki Structure de fixation d'injecteurs
RU2696185C2 (ru) * 2014-07-22 2019-07-31 Форд Глобал Текнолоджиз, Ллк Хомут топливной форсунки дизельного двигателя (варианты) и узел двигателя, содержащий хомут топливной форсунки
IT201900005704A1 (it) * 2019-04-12 2020-10-12 A G Porta S P A Procedimento per la realizzazione di componenti metallici, in particolare componenti per veicoli a motore, quali forcelle per cambi di velocità e staffe di supporto per iniettori di motori a combustione interna, a partire da un singolo pezzo di lamiera

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106670255B (zh) * 2016-12-10 2018-03-09 浙江黎明发动机零部件有限公司 一种喷油器冲压式固定板及其加工方法与装配工装
DE102020102991A1 (de) * 2020-02-06 2021-08-12 Schaeffler Technologies AG & Co. KG Niederhalter für zwei Kraftstoffeinspritzdüsen einer Brennkraftmaschine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT369142B (de) * 1980-05-09 1982-12-10 Friedmann & Maier Ag Vorrichtung zum festspannen eines duesenhalters gegen den zylinderkopf einer einspritzbrennkraftmaschine
GB2177450A (en) * 1985-06-27 1987-01-21 Lucas Ind Plc Clamping device for fuel injection nozzle
EP0848158A1 (fr) * 1996-12-13 1998-06-17 Isuzu Motors Limited Moteur à plusieurs cylindres du type à injection directe
EP1001161A2 (fr) * 1998-11-11 2000-05-17 Isuzu Motors Limited Dispositif de serrage des injecteurs
EP1260706A2 (fr) * 2001-05-25 2002-11-27 Robert Bosch Gmbh Dispositif de fixation d'un injecteur à combustible dans un moteur à combustion interne
US7334572B1 (en) * 2007-01-30 2008-02-26 Ford Global Technologies, Llc System and method for securing fuel injectors
WO2012054601A2 (fr) * 2010-10-20 2012-04-26 Illinois Tool Works Inc. Ensemble support d'injecteur de carburant

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2937081B2 (ja) * 1995-06-26 1999-08-23 いすゞ自動車株式会社 燃料噴射ノズルの締付け装置
JP3473725B2 (ja) * 1995-11-24 2003-12-08 日野自動車株式会社 ディーゼルエンジンのユニットインジェクタ取付構造
DE19605934C1 (de) * 1996-02-17 1997-06-12 Audi Ag Zylinderkopf einer direkteinspritzenden Brennkraftmaschine
GB2311558A (en) * 1996-03-28 1997-10-01 Stanadyne Automotive Corp Fuel injection nozzle with compressive radial pre-loading
DE10109408A1 (de) * 2001-02-28 2002-09-05 Bosch Gmbh Robert Befestigungsvorrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT369142B (de) * 1980-05-09 1982-12-10 Friedmann & Maier Ag Vorrichtung zum festspannen eines duesenhalters gegen den zylinderkopf einer einspritzbrennkraftmaschine
GB2177450A (en) * 1985-06-27 1987-01-21 Lucas Ind Plc Clamping device for fuel injection nozzle
EP0848158A1 (fr) * 1996-12-13 1998-06-17 Isuzu Motors Limited Moteur à plusieurs cylindres du type à injection directe
EP1001161A2 (fr) * 1998-11-11 2000-05-17 Isuzu Motors Limited Dispositif de serrage des injecteurs
EP1260706A2 (fr) * 2001-05-25 2002-11-27 Robert Bosch Gmbh Dispositif de fixation d'un injecteur à combustible dans un moteur à combustion interne
US7334572B1 (en) * 2007-01-30 2008-02-26 Ford Global Technologies, Llc System and method for securing fuel injectors
WO2012054601A2 (fr) * 2010-10-20 2012-04-26 Illinois Tool Works Inc. Ensemble support d'injecteur de carburant

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2902617A1 (fr) * 2014-01-30 2015-08-05 Kabushiki Kaisha Toyota Jidoshokki Structure de fixation d'injecteurs
RU2696185C2 (ru) * 2014-07-22 2019-07-31 Форд Глобал Текнолоджиз, Ллк Хомут топливной форсунки дизельного двигателя (варианты) и узел двигателя, содержащий хомут топливной форсунки
IT201900005704A1 (it) * 2019-04-12 2020-10-12 A G Porta S P A Procedimento per la realizzazione di componenti metallici, in particolare componenti per veicoli a motore, quali forcelle per cambi di velocità e staffe di supporto per iniettori di motori a combustione interna, a partire da un singolo pezzo di lamiera

Also Published As

Publication number Publication date
CN103032231A (zh) 2013-04-10
EP2578868B1 (fr) 2014-02-12
CN103032231B (zh) 2017-12-15
JP2013083258A (ja) 2013-05-09
DE102011084064A1 (de) 2013-04-11

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