EP1364123B1 - Befestigungsvorrichtung - Google Patents

Befestigungsvorrichtung Download PDF

Info

Publication number
EP1364123B1
EP1364123B1 EP02717967A EP02717967A EP1364123B1 EP 1364123 B1 EP1364123 B1 EP 1364123B1 EP 02717967 A EP02717967 A EP 02717967A EP 02717967 A EP02717967 A EP 02717967A EP 1364123 B1 EP1364123 B1 EP 1364123B1
Authority
EP
European Patent Office
Prior art keywords
fastening device
holding
down sleeve
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.)
Expired - Lifetime
Application number
EP02717967A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1364123A1 (de
Inventor
Ferdinand Reiter
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 EP1364123A1 publication Critical patent/EP1364123A1/de
Application granted granted Critical
Publication of EP1364123B1 publication Critical patent/EP1364123B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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

Definitions

  • the invention is based on a fastening device for fastening a fuel injection valve in a cylinder head of an internal combustion engine and for connecting the fuel injection valve to a fuel distributor line according to the preamble of claim 1.
  • Document DE 197 48 593 A discloses a fastening device for fastening an injection valve to a distributor line, wherein the device has a plurality of spring tongues which are bent only in the direction of flow of the fuel.
  • DE 29 26 490 C2 discloses a fastening device for a fuel injection valve for attachment to a suction pipe, in which the axial fixation of the fuel injection valve to the fuel rail or to a plug-in nipple by a fastener, which is designed as a U-shaped securing clip which is provided with two radially resilient legs.
  • the securing clip engages in the assembled state by corresponding recesses of the plug-in nipple and can be latched in a recess formed as an annular groove in a connecting piece of the fuel injection valve.
  • the axial clearance between the recesses and the securing clip and between the annular groove and the securing clip should be kept small in order to achieve an exact fixation of the Fuel injector to achieve without tension of the seal.
  • a disadvantage of the fastening device known from DE 29 26 490 C2 is in particular the bracing effect of the various mounting parts on the fuel injection valve.
  • the power flow generated in the fuel injection valve leads to deformations and thus 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 features of claim 1 has the advantage that the fuel injection valve is held down by a clamped between the fuel injection valve and the fuel distributor spring steel sleeve with spring tongues and therefore eliminates attachment of the fuel injection valve on the cylinder head.
  • the attachment device provides for the transfer of the hold-down force of the fuel rail to the fuel injector by the elastic spring tongues bent opposite each other.
  • omitted in the fastening device according to the invention screws or clamps for attachment to the front side of the cylinder head.
  • a further advantage is that the bending of the formed by punching out of the hold-down elastic spring tongues corresponds to the curvature of the hold-down sleeve.
  • the spring tongues are bent inwards by approx. 90 °, whereby an optimal spring effect is achieved.
  • Fig. 1 shows a schematic partial section through an embodiment of an inventively designed Fastening device for a fuel injection valve on a fuel distribution line.
  • 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 at a feed-side end 3 a plug connection to a receiving socket of a fuel distributor line 4, which is sealed by a seal 5 between the fuel distributor line 4 and a feed pipe 6.
  • the fuel injection valve 1 has an electrical connection 7 for the electrical contacting for actuating the fuel injection valve 1.
  • the fuel injection valve 1 has in a receiving bore 9 of the cylinder head 2 an intermediate ring 8, which serves as a bearing for the fuel injection valve 1 in the receiving bore 9.
  • the intermediate ring 8 is made of elastic material and ensures centering of the fuel injection valve 1 in the receiving bore.
  • the fastening device 10 consists of a hold-down sleeve 11, which is supported on the one hand on a shoulder 12 of the fuel distribution line 4 and on the other hand on a shoulder 13 of the fuel injection valve 1.
  • the hold-down sleeve 11 is preferably punched out of spring steel sheet. Also by punching a plurality of elastic spring tongues 14 are dissolved out of the hold-down 11, which are in communication with the hold-down 11 and for a resilient tension of the hold-down sleeve 11 between the both shoulders 12 and 13 provide.
  • a detailed illustration of the hold-down sleeve 11 is shown in FIGS. 2 and 3 and the following description.
  • the hold-down sleeve 11 has a recess 15, which ensures easier mounting of the fastening device 10.
  • the recess 15, which extends for example only over 75 ° of the circumference, has no effect on the reliability of the fastening device 10 due to the spring steel sheet existing hold-down sleeve 11.
  • the hold-down sleeve 11 may have at each end lead-in bevels 17 which are formed by a bevel on a radially inner side of the hold-down sleeve 11. This facilitates both the postponement of the hold-down sleeve 11 on the fuel injection valve 1 and the insertion of the receiving nozzle of the fuel distributor line 4 in the hold-down 11th
  • Fig. 2 shows a schematic partial section along the line II-II in Fig. 1 by the inventively designed fastening device 10 with a view to the fuel injector 1.
  • the same components are provided in all figures with corresponding reference numerals.
  • the section through the shoulder 13 of the fuel injection valve 1 facing the end of the hold-down sleeve 11 shows in the preferred embodiment, three elastic spring tongues 14, which are brought by punching out of the hold-down sleeve 11 and subsequent bending in the shape shown.
  • the curvature or the slightly curved shape of the elastic spring tongues 14 is achieved in that already curved sleeve sections are punched, as the remaining hole 16 in Fig. 3 indicates.
  • the number of elastic spring tongues 14 is arbitrary and can be designed according to the requirements of the fastening device 10.
  • the hold-down sleeve 11 can also be produced by means of a deep-drawing punching process.
  • FIG. 3 shows a schematic longitudinal section with a schematic partial view through the exemplary embodiment of a fastening device 10 according to the invention shown in FIG. 1.
  • the holes 16 formed by the punching and subsequent bending over of the elastic spring tongues 14 are clearly recognizable.
  • the elastic spring tongues 14 are bent at an angle of approximately 90 ° into the interior of the hold-down sleeve 11. The bend thus also receives a new spatial position.
  • the hold-down effect is achieved, which together with the fuel distributor line 4 facing arrangement of elastic spring tongues 14 which the fuel injection valve 1 and the fuel distributor line 4 results in mutually bracing effect.
  • the resilient shape of the hold-down sleeve 11 can be ensured that the hold-down sleeve 11 abuts both the fuel injector 1 and the fuel manifold 4 and thereby exerts a centering effect. As a result, bending forces on the fuel injection valve 1, which can lead to misalignment of the valve needle to jamming, can be avoided.
  • 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)
EP02717967A 2001-02-22 2002-02-22 Befestigungsvorrichtung Expired - Lifetime EP1364123B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10108467 2001-02-22
DE10108467A DE10108467A1 (de) 2001-02-22 2001-02-22 Befestigungsvorrichtung
PCT/DE2002/000645 WO2002066827A1 (de) 2001-02-22 2002-02-22 Befestigungsvorrichtung

Publications (2)

Publication Number Publication Date
EP1364123A1 EP1364123A1 (de) 2003-11-26
EP1364123B1 true EP1364123B1 (de) 2006-01-18

Family

ID=7675069

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02717967A Expired - Lifetime EP1364123B1 (de) 2001-02-22 2002-02-22 Befestigungsvorrichtung

Country Status (8)

Country Link
US (1) US6684861B2 (cs)
EP (1) EP1364123B1 (cs)
JP (1) JP2004518856A (cs)
KR (1) KR20020089500A (cs)
CN (1) CN1457395A (cs)
CZ (1) CZ20023457A3 (cs)
DE (2) DE10108467A1 (cs)
WO (1) WO2002066827A1 (cs)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10038763A1 (de) * 2000-08-09 2002-02-21 Bosch Gmbh Robert Ausgleichselement für ein Brennstoffeinspritzventil
DE10108466A1 (de) * 2001-02-22 2002-09-05 Bosch Gmbh Robert Ausgleichselement für ein Brennstoffeinspritzventil
DE10133264A1 (de) * 2001-07-09 2003-02-06 Bosch Gmbh Robert Befestigungsvorrichtung
DE10140797A1 (de) * 2001-08-20 2003-07-31 Bosch Gmbh Robert Ausgleichselement für ein Brennstoffeinspritzventil
DE10347774B4 (de) 2003-10-14 2006-04-13 Siemens Ag Aufnahmehülse für einen Aktorkörper
WO2005083262A1 (de) * 2004-02-26 2005-09-09 Robert Bosch Gmbh Stützelement
DE102004015042A1 (de) * 2004-03-26 2005-10-13 Robert Bosch Gmbh Stützelement
DE102004036626A1 (de) 2004-07-29 2006-03-23 Robert Bosch Gmbh Brennstoffeinspritzsystem
DE102004049277A1 (de) * 2004-10-09 2006-04-13 Robert Bosch Gmbh Dämpfungselement für ein Brennstoffeinspritzventil
DE102004060983B4 (de) * 2004-12-17 2017-02-02 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102005006641A1 (de) * 2005-02-14 2006-08-24 Siemens Ag Einspritzventil zum Einspritzen von Kraftstoff und Zylinderkopf
ATE457422T1 (de) * 2005-03-03 2010-02-15 Bosch Gmbh Robert Brennstoffeinspritzvorrichtung
JP4670748B2 (ja) * 2006-06-16 2011-04-13 日産自動車株式会社 燃料供給系装置
US7334571B1 (en) * 2006-08-31 2008-02-26 Gm Global Technology Operations, Inc. Isolation system for high pressure spark ignition direct injection fuel delivery components
DE102007001549A1 (de) 2007-01-10 2008-07-17 Robert Bosch Gmbh Dehnhülsenbefestigung
EP2199592B1 (en) * 2007-05-31 2011-10-12 Continental Automotive GmbH Fixing device for fixing a fuel injector in a cylinder head of a combustion engine
US20080295806A1 (en) * 2007-06-04 2008-12-04 Caterpillar Inc. Heat conducting sleeve for a fuel injector
US20090013968A1 (en) * 2007-07-09 2009-01-15 Keegan Kevin R Vapor recovery system for a direct injector fuel rail assembly
DE102007035714A1 (de) * 2007-07-30 2009-02-05 Robert Bosch Gmbh Brennstoff-Einspritzanlage mit Ausgleichselement
EP2077390B1 (en) * 2008-01-07 2012-09-05 Continental Automotive GmbH Coupling arrangement and connection assembly
US7942132B2 (en) * 2008-07-17 2011-05-17 Robert Bosch Gmbh In-line noise filtering device for fuel system
US20110265767A1 (en) * 2010-05-03 2011-11-03 Delphi Technologies, Inc. Isolater for fuel injector
JP5669557B2 (ja) * 2010-12-15 2015-02-12 マルヤス工業株式会社 電磁弁の取付構造
DE102012206896A1 (de) * 2012-04-26 2013-10-31 Robert Bosch Gmbh Anordnung mit einem Brennstoffverteiler und mehreren Brennstoffeinspritzventilen
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
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
WO2023069526A1 (en) * 2021-10-19 2023-04-27 Stanadyne Llc Axisymmetric injector hold-down load ring

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19735665A1 (de) * 1997-06-25 1999-01-07 Bosch Gmbh Robert Brennstoffeinspritzanlage
DE19748593A1 (de) * 1997-11-04 1999-05-06 Bayerische Motoren Werke Ag Hochdruck-Kraftstoffeinspritzvorrichtung für eine Brennkraftmaschine, insbesondere Otto-Motor
WO2001083979A1 (en) * 2000-05-02 2001-11-08 Delphi Technologies, Inc. Fuel injector spring clip assembly

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3762173A (en) * 1971-06-03 1973-10-02 R Marsh Pile coupling and method of pile driving
DE2926490A1 (de) 1979-06-30 1981-02-05 Bosch Gmbh Robert Kraftstoffeinspritzanlage
DE3146889C2 (de) 1981-11-26 1986-04-30 Bayerische Motoren Werke AG, 8000 München Kraftstoffeinspritzanordnung für Brennkraftmaschinen
DE3406487A1 (de) * 1984-02-23 1985-08-29 Bayerische Motoren Werke AG, 8000 München Einspritzventil fuer gemischverdichtende brennkraftmaschinen, insbesondere fuer einzelsaugrohr-einspritzung
IT8768127A0 (it) * 1987-12-24 1987-12-24 Weber Srl Dispositivo di raccordo perfezionato per l alimentazione di un iniettore
DE19511479C2 (de) * 1994-03-29 2000-02-10 Toyoda Gosei Kk Verbindungsvorrichtung
US5501195A (en) * 1994-09-16 1996-03-26 Siemens Automotive Corporation Retainer arrangement for a bottom feed fuel injector
JP3765336B2 (ja) * 1996-10-15 2006-04-12 株式会社デンソー 燃料供給装置およびその製造方法
DE19756102A1 (de) * 1997-12-17 1999-06-24 Bosch Gmbh Robert Montagevorrichtung zum Montieren von Brennstoffeinspritzventilen
US6019089A (en) * 1998-10-14 2000-02-01 Ford Motor Company Arrangement for orienting a fuel injector to a fuel manifold cup
US5970953A (en) * 1999-01-12 1999-10-26 Siemens Automotive Corporation High pressure injector clip
US6443501B1 (en) * 1999-08-23 2002-09-03 Ti Group Automotive Systems, Llc Mid-line coupling
US6481420B2 (en) * 2001-01-30 2002-11-19 Visteon Global Technologies, Inc. Method and apparatus for maintaining the alignment of a fuel injector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19735665A1 (de) * 1997-06-25 1999-01-07 Bosch Gmbh Robert Brennstoffeinspritzanlage
DE19748593A1 (de) * 1997-11-04 1999-05-06 Bayerische Motoren Werke Ag Hochdruck-Kraftstoffeinspritzvorrichtung für eine Brennkraftmaschine, insbesondere Otto-Motor
WO2001083979A1 (en) * 2000-05-02 2001-11-08 Delphi Technologies, Inc. Fuel injector spring clip assembly

Also Published As

Publication number Publication date
KR20020089500A (ko) 2002-11-29
DE10108467A1 (de) 2002-09-05
US20030164158A1 (en) 2003-09-04
EP1364123A1 (de) 2003-11-26
JP2004518856A (ja) 2004-06-24
WO2002066827A1 (de) 2002-08-29
DE50205649D1 (de) 2006-04-06
CZ20023457A3 (en) 2004-04-14
US6684861B2 (en) 2004-02-03
CN1457395A (zh) 2003-11-19

Similar Documents

Publication Publication Date Title
EP1364123B1 (de) Befestigungsvorrichtung
EP1706626B1 (de) Stützelement
EP1366285B1 (de) Befestigungsvorrichtung
EP1906005B1 (de) Brennstoffeinspritzvorrichtung
EP1440235B1 (de) Befestigungsvorrichtung
WO2005083262A1 (de) Stützelement
EP2841759B1 (de) Hochdruckbrennstoffeinspritzanlage
EP1373712B1 (de) Befestigungsvorrichtung für ein brennstoffeinsptitzventil
DE10163030B4 (de) Befestigungsvorrichtung
EP2187040A2 (de) Brennstoffeinspritzvorrichtung
WO2009144069A1 (de) Niederhalter für eine brennstoffeinspritzvorrichtung
EP1907688B1 (de) Niederhaltevorrichtung
EP1570171B1 (de) Stützelement
WO2003006818A1 (de) Befestigungsvorrichtung eines brennstoffeinspritzventils an einer brennstoffverteilerleitung
DE10108193A1 (de) Befestigungsvorrichtung
DE102004047035A1 (de) Stützelement

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20030922

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

17Q First examination report despatched

Effective date: 20040512

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: 7F 02M 61/14 A

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20060228

Year of fee payment: 5

REF Corresponds to:

Ref document number: 50205649

Country of ref document: DE

Date of ref document: 20060406

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060424

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20061019

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20070221

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20070216

Year of fee payment: 6

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20080222

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20081031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080229

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070222

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110421

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50205649

Country of ref document: DE

Effective date: 20120901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120901