EP1722099A2 - Dispositif de fixation - Google Patents

Dispositif de fixation Download PDF

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Publication number
EP1722099A2
EP1722099A2 EP06117773A EP06117773A EP1722099A2 EP 1722099 A2 EP1722099 A2 EP 1722099A2 EP 06117773 A EP06117773 A EP 06117773A EP 06117773 A EP06117773 A EP 06117773A EP 1722099 A2 EP1722099 A2 EP 1722099A2
Authority
EP
European Patent Office
Prior art keywords
fuel injection
hold
injection valve
fastening device
cylinder head
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
EP06117773A
Other languages
German (de)
English (en)
Other versions
EP1722099B1 (fr
EP1722099A3 (fr
Inventor
Uwe Liskow
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 EP1722099A2 publication Critical patent/EP1722099A2/fr
Publication of EP1722099A3 publication Critical patent/EP1722099A3/fr
Application granted granted Critical
Publication of EP1722099B1 publication Critical patent/EP1722099B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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

Definitions

  • the invention relates to a fastening device for fastening a fuel injection valve according to the preamble of the main claim.
  • a fastening device for a fuel injection valve for attachment to a suction tube in which the axial fixation of the fuel injection valve on the fuel distributor line or on a plug-in nipple by a fastener, which is designed as a U-shaped securing clip provided with two resiliently resilient legs is.
  • the securing clip engages in the mounted state by corresponding recesses of the plug-in nipple and can be latched into a recess formed as an annular groove in a connection socket of the fuel injection valve.
  • the axial clearance between the recesses and the securing clip as well as between the annular groove and the securing clip should be kept small in order to achieve an exact fixation of the fuel injection valve without tension of the seal.
  • a disadvantage of the DE 29 26 490 C2 known fastening device is in particular the bracing effect of the various mounting parts on the fuel injection valve.
  • the force flow generated in the fuel injection valve leads to deformations and thus to changes in the stroke of the valve needle to jamming and to a pressure or bending load of the housing parts, which are generally thin-walled and welded together at several points.
  • each fastening measure leads, for example by a support collar to increase the radial extent of the fuel injection valve and thus to an increased space requirement during installation.
  • the fastening device according to the invention for a fuel injection valve with the characterizing features of the main claim has the advantage that the fuel injection valve at a discharge end has an attached collar or paragraph, which acts on a flexible hold-down, which includes the end of the fuel injection valve in whole or in part, thereby the fuel injection valve is held down in the cylinder head.
  • axial or bending forces act on the valve housing only at the downstream end.
  • hold-down devices can be produced simply by stamping from sheet metal and are suitable both for individual fuel injection valves and for row arrangements of fuel injection valves.
  • the hold-downs are fixed by screws or clamps in a simple manner on the front side of the cylinder head.
  • a further advantage is that the hold-down is formed in the form of a hold-down pot, which gives the fuel injection valve in the receiving bore of the cylinder head greater stability.
  • Another advantage is the formation of slits and elastic tabs at the end of the hold-down pot, which allow a quick and easy assembly and disassembly of the fuel injector.
  • the fastening device can be installed in almost any receiving bore of a cylinder head and can thus also be used as an adapter for large bore cross-sections.
  • Fig. 1 shows a highly schematic partial section through a first embodiment of an inventively designed fastening device for a fuel injection valve.
  • a fuel injection valve 1 is designed in the form of a directly injecting fuel injection valve 1, which is installed in a cylinder head 2 for the direct injection of fuel into a combustion chamber of a non-illustrated, in particular mixture-compressing spark-ignition internal combustion engine.
  • the fuel injection valve 1 has a connection to a fuel feed line 4 at an inlet end 3.
  • the fuel injection valve 1 has a connection 5 for the electrical contacting for actuating the fuel injection valve 1.
  • a shoulder 7 is formed, which bears against a wall 8 of a receiving bore 9 of the cylinder head 2.
  • the paragraph 7 can be made for example by turning, or it can be fixed by welding a spherical shape at the downstream end 6 of the fuel injection valve 1, which also still a good guide in the receiving bore 9 is achieved.
  • a fastening device 10 is provided according to the invention.
  • the fastening device 10 consists of a hold-down 11, which is formed in two parts in the present first embodiment and rests on the downstream end 6 of the fuel injection valve 1.
  • the Hold-down 11 punched from sheet metal, for example.
  • the hold-down devices 11 are supported on the shoulder 7 formed at the downstream end 6 of the fuel injection valve 1.
  • the holding-down devices 11 are provided with side parts 16 on an end face 12 of the cylinder head 2 either, as shown on the left in FIG. 1, by means of a screw 13 screwed into the cylinder head 2 or, as shown in FIG. 1 on the right, by means of a likewise on the front side 12 of the cylinder head 2 attached clamping claw 14 attached.
  • the latter is characterized by an easier mountability, as can be dispensed with a hole in the hold-11.
  • the preferred form of the hold-down device 11 is chosen so that by the fixing of the side parts 16 on the front side 12 of the cylinder head 2, a spring action is created, which presses the fuel injection valve 1 via the shoulder 7 in the receiving bore 9 in the cylinder head 2.
  • the axial stability of the fuel injection valve 1 is achieved on the one hand by the leadership of the fuel line 4, on the other hand by the partial enclosure of the hold-11 in the region of the downstream end 6 of the fuel injection valve 1.
  • FIGS. 2A and 2B illustrate a schematic plan view of two variants of the fastening device 10 of the fuel injection valve 1 according to the invention. Identical components are provided in all figures with corresponding reference numerals.
  • FIG. 2A shows a symmetrical pair of hold-downs 11 suitable for attachment of a single Fuel injector 1 are used, while Fig. 2B a possible series arrangement of several fuel injection valves 1 account, by each adjacent hold-down 11 are made in one piece for ease of attachment and further stabilization.
  • FIG. 3 shows a schematic plan view of a second exemplary embodiment of a fastening device 10 designed according to the invention for a fuel injection valve 1.
  • the second exemplary embodiment described in FIG. 3 is formed in one piece or in cup shape.
  • a hold-down pot 17 in turn has two side parts 16 with holes 15 for fastening the hold-down pot 17 on the end face 12 of the cylinder head 2.
  • a recess 18 serves to carry out the electrical line, not shown, for actuating the fuel injection valve 1.
  • Such a hold-down pot 17 can be produced, for example, by deep-drawing.
  • At least one slit 19, in the present embodiment of which two are arranged symmetrically at a downstream end 22 of the hold-down pot 17 is provided.
  • FIG. 5 shows a schematic view of the fastening operation of a fuel injection valve 1 in the fastening device 10 shown in FIGS. 3 and 4.
  • the fuel injection valve 1 If the fuel injection valve 1 is pressed further against the spring force of the tabs 21 in the hold-down pot 17, they grab the inlet side of the paragraph 7 back to their original shape and are applied to the fuel injector 1. At the same time can be achieved by a brief tightening of the mounted fuel injector 1, that the tabs 21 are supported on the shoulder 7 and fix the fuel injector 1 after mounting fuel injector 1 and hold-down pot 17 in the receiving bore 9 of the cylinder head 2. If the fuel injection valve 1 to be dismantled, it is pulled out of the hold-down pot 17, which is facilitated by a spherical shape of the paragraph 7.
  • the attachment of the hold-down pot 17 can be done as in the first embodiment by means of screws 13 which are guided through the holes 15, or by means of clamping claws 14.
  • the invention is not limited to the illustrated embodiment and, for example, for fuel injection valves 1 for injection into the combustion chamber of a self-igniting internal combustion engine applicable.

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)
EP06117773A 2001-02-28 2002-02-27 Dispositif de fixation Expired - Lifetime EP1722099B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10109408A DE10109408A1 (de) 2001-02-28 2001-02-28 Befestigungsvorrichtung
EP02719641A EP1366285B1 (fr) 2001-02-28 2002-02-27 Dispositif de fixation

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP02719641A Division EP1366285B1 (fr) 2001-02-28 2002-02-27 Dispositif de fixation

Publications (3)

Publication Number Publication Date
EP1722099A2 true EP1722099A2 (fr) 2006-11-15
EP1722099A3 EP1722099A3 (fr) 2006-11-29
EP1722099B1 EP1722099B1 (fr) 2009-02-18

Family

ID=7675651

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06117773A Expired - Lifetime EP1722099B1 (fr) 2001-02-28 2002-02-27 Dispositif de fixation
EP02719641A Expired - Lifetime EP1366285B1 (fr) 2001-02-28 2002-02-27 Dispositif de fixation

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP02719641A Expired - Lifetime EP1366285B1 (fr) 2001-02-28 2002-02-27 Dispositif de fixation

Country Status (7)

Country Link
US (1) US6772736B2 (fr)
EP (2) EP1722099B1 (fr)
JP (1) JP2004518863A (fr)
CN (1) CN1457393A (fr)
CZ (1) CZ20023489A3 (fr)
DE (3) DE10109408A1 (fr)
WO (1) WO2002068815A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3054149A1 (fr) * 2015-02-07 2016-08-10 Neander Motors AG Dispositif de fixation d'une buse d'injection de carburant

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10140797A1 (de) * 2001-08-20 2003-07-31 Bosch Gmbh Robert Ausgleichselement für ein Brennstoffeinspritzventil
JP3997946B2 (ja) * 2002-07-26 2007-10-24 株式会社デンソー 燃料供給装置
DE10256668A1 (de) 2002-12-04 2004-07-29 Robert Bosch Gmbh Stützelement
DE10338715B4 (de) * 2003-08-22 2014-07-17 Robert Bosch Gmbh Ausgleichselement für ein Brennstoffeinspritzventil
DE102004055317A1 (de) 2004-11-16 2006-05-24 Bosch Rexroth Aktiengesellschaft Elektrische Drehfeldmaschine und Primärteil
EP2187039B1 (fr) * 2005-03-03 2014-05-07 Robert Bosch GmbH Dispositif d'injection de carburant
US7469680B2 (en) * 2005-09-30 2008-12-30 Caterpillar Inc. Fluid system having quill-mounted manifold
DE102006019306A1 (de) * 2006-04-26 2007-10-31 Robert Bosch Gmbh Rastpratze
DE102006056704A1 (de) * 2006-11-30 2008-06-05 Robert Bosch Gmbh Brennstoffeinspritzventil und Brennstoffeinspritzsystem
DE602007002783D1 (de) * 2007-03-08 2009-11-26 Continental Automotive Gmbh Kupplungsvorrichtung und Kraftstoffzufuhranordnung
EP2199592B1 (fr) * 2007-05-31 2011-10-12 Continental Automotive GmbH Dispositif de fixation pour fixer un injecteur de combustible dans une culasse d'un moteur à combustion
DE102007035714A1 (de) * 2007-07-30 2009-02-05 Robert Bosch Gmbh Brennstoff-Einspritzanlage mit Ausgleichselement
JP4937891B2 (ja) * 2007-11-30 2012-05-23 愛三工業株式会社 燃料供給装置
JP5408010B2 (ja) * 2010-04-08 2014-02-05 株式会社デンソー 高圧ポンプ
US20110265767A1 (en) * 2010-05-03 2011-11-03 Delphi Technologies, Inc. Isolater for fuel injector
US20130174810A1 (en) * 2010-10-20 2013-07-11 Illinois Tool Works Inc. Fuel injector bracket assembly
US9109563B2 (en) * 2011-03-31 2015-08-18 Denso International America, Inc. Cradled fuel injector mount assembly
DE102011084064A1 (de) * 2011-10-06 2013-04-11 Schaeffler Technologies AG & Co. KG Niederhalter für eine Kraftstoffeinspritzdüse
US8424509B1 (en) * 2011-10-28 2013-04-23 Continental Automotive Systems Us, Inc. Fuel injector cup rotation limiting structure for an isolated fuel rail system
CN103527375B (zh) * 2013-09-22 2016-03-09 安徽中鼎动力有限公司 一种两冲程发动机的喷油器压套装置
JP6256918B2 (ja) * 2014-09-30 2018-01-10 本田技研工業株式会社 インジェクタ組付体
DE102016225695A1 (de) * 2016-12-21 2018-06-21 Robert Bosch Gmbh Anordnung mit zumindest einem Ventil und einem Halter
EP3721070A1 (fr) * 2017-12-08 2020-10-14 Volvo Truck Corporation Dispositif pour système d'injection de carburant à rampe de distribution commune

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926490C2 (fr) 1979-06-30 1992-04-09 Robert Bosch Gmbh, 7000 Stuttgart, De

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US4133321A (en) * 1972-12-21 1979-01-09 Robert Bosch Gmbh Clamping device for fuel injection nozzles
US4066213A (en) * 1976-04-16 1978-01-03 Deere & Company Fuel injection nozzle assembly
IN159427B (fr) * 1982-11-27 1987-05-16 Perkins Engines Group
DE3406487A1 (de) * 1984-02-23 1985-08-29 Bayerische Motoren Werke AG, 8000 München Einspritzventil fuer gemischverdichtende brennkraftmaschinen, insbesondere fuer einzelsaugrohr-einspritzung
US5121731A (en) * 1991-06-20 1992-06-16 Siemens Automotive L.P. Means for mounting a fuel injector on a fuel rail
US5706786A (en) * 1994-12-28 1998-01-13 Cummins Engine Company, Inc. Distortion reducing load ring for a fuel injector
JPH08312503A (ja) * 1995-03-10 1996-11-26 Mitsubishi Motors Corp 固定対象物、特に筒内噴射型内燃機関用インジェクタの取付構造
DE19511703A1 (de) * 1995-03-30 1996-10-02 Bayerische Motoren Werke Ag Vorrichtung zur Befestigung einer Einspritzdüse insbesondere am Zylinderkopf einer Brennkraftmaschine
CA2246368A1 (fr) * 1996-02-12 1997-08-21 Filterwerk Mann & Hummel Gmbh Systeme d'admission
JP3765132B2 (ja) * 1996-09-06 2006-04-12 日産自動車株式会社 直噴式ディーゼル機関における燃料噴射ノズル固定装置
FR2763649B1 (fr) * 1997-05-20 1999-06-25 Peugeot Dispositif de fixation d'un injecteur de carburant sur une culasse de moteur a combustion interne, et un procede de montage de cet injecteur
DE19735665A1 (de) * 1997-06-25 1999-01-07 Bosch Gmbh Robert Brennstoffeinspritzanlage
JP2000145580A (ja) * 1998-11-11 2000-05-26 Isuzu Motors Ltd インジェクタの固定構造
DE19857485A1 (de) * 1998-12-14 2000-06-15 Bosch Gmbh Robert Montagevorrichtung zur Montage und Demontage eines Brennstoffeinspritzventils
JP3871016B2 (ja) * 2000-05-22 2007-01-24 スズキ株式会社 筒内噴射式エンジンの燃料インジェクタ取付構造

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926490C2 (fr) 1979-06-30 1992-04-09 Robert Bosch Gmbh, 7000 Stuttgart, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3054149A1 (fr) * 2015-02-07 2016-08-10 Neander Motors AG Dispositif de fixation d'une buse d'injection de carburant

Also Published As

Publication number Publication date
EP1722099B1 (fr) 2009-02-18
DE50208596D1 (de) 2006-12-14
CZ20023489A3 (en) 2004-05-12
CN1457393A (zh) 2003-11-19
DE10109408A1 (de) 2002-09-05
EP1722099A3 (fr) 2006-11-29
DE50213305D1 (de) 2009-04-02
US20030154961A1 (en) 2003-08-21
US6772736B2 (en) 2004-08-10
EP1366285B1 (fr) 2006-11-02
JP2004518863A (ja) 2004-06-24
WO2002068815A1 (fr) 2002-09-06
EP1366285A1 (fr) 2003-12-03

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