EP1099850A1 - Dispositif de fixation d'un injecteur dans un support - Google Patents

Dispositif de fixation d'un injecteur dans un support Download PDF

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Publication number
EP1099850A1
EP1099850A1 EP00122124A EP00122124A EP1099850A1 EP 1099850 A1 EP1099850 A1 EP 1099850A1 EP 00122124 A EP00122124 A EP 00122124A EP 00122124 A EP00122124 A EP 00122124A EP 1099850 A1 EP1099850 A1 EP 1099850A1
Authority
EP
European Patent Office
Prior art keywords
clamping
nozzle
holder
sleeve
nut
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.)
Withdrawn
Application number
EP00122124A
Other languages
German (de)
English (en)
Inventor
Wolfgang Schaef
Thomas Muehlbauer
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 EP1099850A1 publication Critical patent/EP1099850A1/fr
Withdrawn legal-status Critical Current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
    • 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 an assembly for fastening an injection nozzle in one Holder, which is provided with a receiving opening for the injection nozzle.
  • the injection nozzle is usually inserted into the receiving opening by a clamping element pressed that on the rear side of the injector body, so on the side facing away from the nozzle needle, and the injection nozzle in presses the receiving opening.
  • the disadvantage of this type of attachment is in that the clamping force acting on the entire injector body Body compresses, which changes the stroke dimensions inside the injector has the consequence and leads to an impairment of the function.
  • the assembly according to the invention with the features of claim 1 the advantage that the required clamping force is essentially no longer above the Body of the injector is transferred.
  • the injector body no longer compressed, so that impairments of the function are avoided.
  • an offset of the lifting mechanism, as caused by tensioning the injector body avoided with a conventional arrangement.
  • the assembly shown in the single figure consists of an injection nozzle 10, which is mounted in a holder 12, for example a cylinder head.
  • the Holder 12 is provided with a receiving opening 14, in which the body 16 the injector is arranged.
  • This body is on its front side with provided with a thread 18 onto which a nozzle clamping nut 20 is screwed is.
  • the nozzle clamp nut 20 surrounds the front end of the body 16 of the injector and lies on the bottom of the receiving opening 14 on a sealing washer 22 on.
  • the nozzle clamping nut 20 also has a cylindrical guide section 24 on the stepped front section of the receiving opening 14 rests and for guiding the body 16 of the injection nozzle in the holder 12 cares.
  • an adapter sleeve 26 which extends up to that of the sealing washer 22 opposite end of the receiving opening 14 extends.
  • the clamping sleeve 26 is with provided with a guide ring 28 which is local for guiding the clamping sleeve 26 and thus the body 16 of the injection nozzle in the receiving opening 14.
  • a clamping element 29 in the form of a clamping claw is arranged on the holder 12, that with two rounded projections 30 at the rear end of the clamping sleeve 26 rests and by two schematically indicated screws 32 with the Holder 12 can be screwed.
  • the clamping element 29 then exercises the attachment the clamping force required by the injection nozzle onto the clamping sleeve 26, which in turn transmits them via the nozzle clamping nut 20.
  • the injector is thus securely and reliably fastened in the receiving opening 14 since they are in the clamped nozzle clamping nut is screwed in.
  • the one from the tensioning element Forces exerted on the clamping sleeve and the nozzle clamping nut act hardly on the body of the injector, so that it is not compressed.
  • Each the thread of the injector body is arranged further forward, the less are the effects of a compression of the nozzle clamping nut when tightening in the receiving opening.
  • a one-piece design can also be used, in which the clamping sleeve is designed as an extension of the nozzle clamping nut.
  • the clamping element in the form of a clamping claw one could also Clamping element can be used in the form of a flange on the rear End of the clamping sleeve 26 is formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
EP00122124A 1999-11-10 2000-10-12 Dispositif de fixation d'un injecteur dans un support Withdrawn EP1099850A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19954065 1999-11-10
DE1999154065 DE19954065A1 (de) 1999-11-10 1999-11-10 Baugruppe zur Befestigung einer Einspritzdüse in einem Halter

Publications (1)

Publication Number Publication Date
EP1099850A1 true EP1099850A1 (fr) 2001-05-16

Family

ID=7928549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00122124A Withdrawn EP1099850A1 (fr) 1999-11-10 2000-10-12 Dispositif de fixation d'un injecteur dans un support

Country Status (3)

Country Link
EP (1) EP1099850A1 (fr)
JP (1) JP2001173542A (fr)
DE (1) DE19954065A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005054661A1 (fr) * 2003-12-05 2005-06-16 Siemens Aktiengesellschaft Injecteur pourvu d'un dispositif de fixation destine a une culasse de cylindre et dispositif de fixation

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102937063B (zh) * 2012-10-31 2015-04-29 中国北方发动机研究所(天津) 一种喷油器压紧螺帽及其固定方法
DE102015001614A1 (de) 2015-02-07 2016-08-11 Neander Motors Ag Einrichtung zur Festsetzung zumindest einer Kraftstoffeinspritzdüse
DE102016009079A1 (de) 2016-07-27 2018-02-01 Neander Motors Aktiengesellschaft Kraftstoffeinspritzanlage für eine Brennkraftmaschine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB736446A (en) * 1953-04-15 1955-09-07 Cav Ltd Liquid fuel injection nozzle holders for internal combustion engines
GB774206A (en) * 1953-08-28 1957-05-08 Maschf Augsburg Nuernberg Ag Improvements in and relating to fuel injection nozzles for internal combustion engines
GB1148012A (en) * 1966-02-07 1969-04-10 Ustav Pro Vyzkum Motorovych Vo Improvements in or relating to draining of excess fuel from fuel injectors of internal combustion compression ignition engines
DE3908796A1 (de) * 1988-06-06 1989-12-14 Bosch Gmbh Robert Kraftstoff-einspritzduese fuer brennkraftmaschinen
JPH03182680A (ja) * 1989-12-08 1991-08-08 Nissan Motor Co Ltd 燃料噴射ノズルの固定構造
EP0735267A2 (fr) * 1995-03-30 1996-10-02 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Dispositif de fixation d'un injecteur en particulier sur la culasse de cylindre d'un moteur à combustion interne
EP0819846A1 (fr) * 1996-07-18 1998-01-21 Denso Corporation Dispositif d'injection de combustible comprenant un cylindre taraudé pour le montage d'injecteur sur le moteur

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB736446A (en) * 1953-04-15 1955-09-07 Cav Ltd Liquid fuel injection nozzle holders for internal combustion engines
GB774206A (en) * 1953-08-28 1957-05-08 Maschf Augsburg Nuernberg Ag Improvements in and relating to fuel injection nozzles for internal combustion engines
GB1148012A (en) * 1966-02-07 1969-04-10 Ustav Pro Vyzkum Motorovych Vo Improvements in or relating to draining of excess fuel from fuel injectors of internal combustion compression ignition engines
DE3908796A1 (de) * 1988-06-06 1989-12-14 Bosch Gmbh Robert Kraftstoff-einspritzduese fuer brennkraftmaschinen
JPH03182680A (ja) * 1989-12-08 1991-08-08 Nissan Motor Co Ltd 燃料噴射ノズルの固定構造
EP0735267A2 (fr) * 1995-03-30 1996-10-02 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Dispositif de fixation d'un injecteur en particulier sur la culasse de cylindre d'un moteur à combustion interne
EP0819846A1 (fr) * 1996-07-18 1998-01-21 Denso Corporation Dispositif d'injection de combustible comprenant un cylindre taraudé pour le montage d'injecteur sur le moteur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 015, no. 432 (M - 1175) 5 November 1991 (1991-11-05) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005054661A1 (fr) * 2003-12-05 2005-06-16 Siemens Aktiengesellschaft Injecteur pourvu d'un dispositif de fixation destine a une culasse de cylindre et dispositif de fixation

Also Published As

Publication number Publication date
JP2001173542A (ja) 2001-06-26
DE19954065A1 (de) 2001-05-23

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