EP1366285A1 - Dispositif de fixation - Google Patents

Dispositif de fixation

Info

Publication number
EP1366285A1
EP1366285A1 EP02719641A EP02719641A EP1366285A1 EP 1366285 A1 EP1366285 A1 EP 1366285A1 EP 02719641 A EP02719641 A EP 02719641A EP 02719641 A EP02719641 A EP 02719641A EP 1366285 A1 EP1366285 A1 EP 1366285A1
Authority
EP
European Patent Office
Prior art keywords
hold
cylinder head
fastening device
injection valve
fuel injection
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
EP02719641A
Other languages
German (de)
English (en)
Other versions
EP1366285B1 (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
Priority to EP06117773A priority Critical patent/EP1722099B1/fr
Publication of EP1366285A1 publication Critical patent/EP1366285A1/fr
Application granted granted Critical
Publication of EP1366285B1 publication Critical patent/EP1366285B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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 disadvantage of the fastening device known from DE 29 26 490 C2 is, in particular, the bracing effect of the various fasteners 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 up to 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.
  • Fuel injector has a collar or shoulder attached to it at an injection-side end, on which a flexible hold-down device engages, which completely or partially encompasses the end of the fuel injector, as a result of which the fuel injector is held down in the cylinder head.
  • a flexible hold-down device engages, which completely or partially encompasses the end of the fuel injector, as a result of which the fuel injector is held down in the cylinder head.
  • hold-down devices can be produced simply by punching from sheet metal and are suitable both for individual fuel injection valves and for row arrangements of fuel injection valves.
  • the hold-down devices are advantageously fixed in a simple manner to the end face of the cylinder head by screws or clamping claws. Another advantage is that the hold-down is shaped in the form of a hold-down pot that the
  • Fuel injector in the mounting hole of the cylinder head gives greater stability.
  • Another advantage is the formation of slits and elastic tabs at the end of the hold-down pot, which allow quick and easy assembly and disassembly of the fuel injector.
  • the fastening device can be installed in almost every mounting hole in a cylinder head and can therefore also be used as an adapter if the bore cross-sections are too large.
  • Fig. 1 is a schematic view of a first embodiment of an inventive fastening device for a
  • 2A-B are each a schematic plan view of the fastening device designed according to the invention.
  • FIG. 3 shows a schematic plan view of a second exemplary embodiment of a fastening device according to the invention
  • Fig. 4 is a schematic sectional view of the fastening device shown in Fig.
  • And 5 shows a schematic view of the fastening process of a fuel injector with the fastening device shown in FIGS. 3 and 4.
  • FIG. 1 shows a highly schematic partial section through a first exemplary embodiment of a fastening device for a fuel injector designed according to the invention.
  • a fuel injector 1 is designed in the form of a direct-injection fuel injector 1, which is installed in a cylinder head 2 for the direct injection of fuel into a combustion chamber of a mixture compression-ignition internal combustion engine, not shown, in particular.
  • the fuel injection valve 1 has a connection to a fuel feed line 4 at an inlet-side end 3.
  • the fuel injector 1 has a connection 5 for the electrical contact for actuating the fuel injector 1.
  • a shoulder 7 is formed, which bears against a wall 8 of a receiving bore 9 of the cylinder head 2.
  • the shoulder 7 can be produced, for example, by turning, or a spherical shape can be attached to the outflow-side end 6 of the fuel injection valve 1 by means of welding, as a result of which good guidance is also achieved in the receiving bore 9.
  • a fastening device 10 is provided according to the invention.
  • The. Fastening device 10 consists of a hold-down device 11, which in the present first exemplary embodiment is formed in two parts and rests on the outflow end 6 of the fuel injector 1.
  • the hold-down devices 11 are preferably punched out of sheet metal, for example.
  • the hold-down devices 11 are supported on the shoulder 7 formed on the outflow end 6 of the fuel injection valve 1.
  • the hold-down devices 11 are with side parts 16 on an end face 12 of the cylinder head 2 either, as shown in FIG. 1 on the left, 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 end face 12 of the cylinder head 2 attached claw 14 attached.
  • the latter is characterized by easier assembly, since there is no need for a hole in the hold-down device 11.
  • the preferred form of the hold-down device 11 is chosen so that the side parts 16 are fixed on the end face 12 of the cylinder head 2, which results in a spring action which presses the fuel injector 1 via the shoulder 7 into 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 guiding the fuel line 4, and on the other hand by partially enclosing the hold-down device 11 in the region of the downstream end 6 of the fuel injection valve 1.
  • FIGS. 2A and 2B represent a schematic plan view of two variants of the fastening device 10 of the fuel injector 1 according to the invention.
  • the same components are provided with the same reference numerals in all the figures.
  • FIGS. 2A and 2B show a symmetrical pair of hold-down devices 11, which are used to fasten a single fuel injector 1, while FIG. 2B takes into account a possible row arrangement of several fuel injector 1, in that adjacent hold-down devices 11 are made in one piece for easier fastening and further stabilization ,
  • FIG. 3 shows a schematic top view of a second exemplary embodiment of a fastening device 10 for a fuel injector 1 designed according to the invention.
  • the second embodiment described in FIG. 3 is formed in one piece or in a pot shape.
  • a hold-down pot 17 in turn has two side parts 16 with bores 15 ' for fastening the hold-down pot 17 to the end face 12 of the cylinder head 2.
  • a recess 18 serves for the passage of 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.
  • the hold-down pot 17 has, as illustrated in FIG. 4, a plurality of stages 20.
  • FIG. 5 shows a schematic view of the fastening process of a fuel injection valve 1 in FIG the fastening device 10 shown in FIGS. 3 and 4.
  • the holding-down pot 17 can be fastened, as in the first exemplary embodiment, by means of screws 13, which are guided through the bores 15, or by means of clamps 14.
  • the invention is not limited to the exemplary embodiment 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.

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)

Abstract

L'invention concerne un dispositif de fixation servant à fixer une soupape d'injection de carburant (1) dans une culasse de cylindre (2) de moteur à combustion interne, qui présente au moins un serre-flan (11) fixé sur une face avant (12) de la culasse de cylindre (2) et qui fixe la soupape à combustion interne (1) dans un alésage de réception (9) de la culasse de cylindre (2). Le serre-flan (11) (au moins au nombre de un) s'appuie à cet effet sur un épaulement (7) formé à une extrémité (6) côté écoulement et renferme au moins en partie la soupape d'injection de carburant (1).
EP02719641A 2001-02-28 2002-02-27 Dispositif de fixation Expired - Lifetime EP1366285B1 (fr)

Priority Applications (1)

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

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10109408A DE10109408A1 (de) 2001-02-28 2001-02-28 Befestigungsvorrichtung
DE10109408 2001-02-28
PCT/DE2002/000696 WO2002068815A1 (fr) 2001-02-28 2002-02-27 Dispositif de fixation

Related Child Applications (1)

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

Publications (2)

Publication Number Publication Date
EP1366285A1 true EP1366285A1 (fr) 2003-12-03
EP1366285B1 EP1366285B1 (fr) 2006-11-02

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 Before (1)

Application Number Title Priority Date Filing Date
EP06117773A Expired - Lifetime EP1722099B1 (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)

Families Citing this family (24)

* 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
EP1859160B1 (fr) * 2005-03-03 2010-02-10 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
DE102015001614A1 (de) * 2015-02-07 2016-08-11 Neander Motors Ag Einrichtung zur Festsetzung zumindest einer Kraftstoffeinspritzdüse
DE102016225695A1 (de) * 2016-12-21 2018-06-21 Robert Bosch Gmbh Anordnung mit zumindest einem Ventil und einem Halter
CN111433450B (zh) 2017-12-08 2022-01-28 沃尔沃卡车集团 用于共轨燃料喷射系统的装置

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US4133321A (en) * 1972-12-21 1979-01-09 Robert Bosch Gmbh Clamping device for fuel injection nozzles
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DE2926490A1 (de) 1979-06-30 1981-02-05 Bosch Gmbh Robert Kraftstoffeinspritzanlage
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
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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
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Also Published As

Publication number Publication date
DE50213305D1 (de) 2009-04-02
CN1457393A (zh) 2003-11-19
EP1722099B1 (fr) 2009-02-18
JP2004518863A (ja) 2004-06-24
CZ20023489A3 (en) 2004-05-12
DE50208596D1 (de) 2006-12-14
US20030154961A1 (en) 2003-08-21
EP1722099A2 (fr) 2006-11-15
WO2002068815A1 (fr) 2002-09-06
DE10109408A1 (de) 2002-09-05
EP1366285B1 (fr) 2006-11-02
US6772736B2 (en) 2004-08-10
EP1722099A3 (fr) 2006-11-29

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