WO2011032770A1 - Injecteur - Google Patents

Injecteur Download PDF

Info

Publication number
WO2011032770A1
WO2011032770A1 PCT/EP2010/061023 EP2010061023W WO2011032770A1 WO 2011032770 A1 WO2011032770 A1 WO 2011032770A1 EP 2010061023 W EP2010061023 W EP 2010061023W WO 2011032770 A1 WO2011032770 A1 WO 2011032770A1
Authority
WO
WIPO (PCT)
Prior art keywords
pin
angle compensation
injector according
compensation element
injector
Prior art date
Application number
PCT/EP2010/061023
Other languages
German (de)
English (en)
Inventor
Nadja Eisenmenger
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 EP10742454.1A priority Critical patent/EP2478208B1/fr
Publication of WO2011032770A1 publication Critical patent/WO2011032770A1/fr

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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
    • F02M63/008—Hollow valve members, e.g. members internally guided

Definitions

  • the end of the pin has a rounded contact edge in the region of the contact surface.
  • the invention can be used particularly preferably in an injector in which the angle between the longitudinal axis of the pin and the longitudinal axis of the angle compensation element is less than 5 °. With such a design, the wear over the life of the injector is limited. In particular, any tilting moments which may occur are compensated by the angle compensation element.
  • the injector 1 described so far can be modified or modified in a variety of ways. So it is also conceivable, for example, instead of a one-piece pin 30 to use a plurality of longitudinally successively arranged anchor pins. Essential to the invention is only the storage of the pin in the region of the valve cover or the pin, which is arranged on the opposite side of the control chamber.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

La présente invention concerne un injecteur (1) destiné à injecter du carburant dans une chambre de combustion d'un moteur à combustion interne, un élément d'injection débloquant ou fermant au moins une ouverture d'injection étant commandé par une soupape de commande (11), la soupape de commande (11) débloquant ou bloquant une liaison allant d'un espace de commande (17) à une conduite de retour de carburant (23) du fait qu'un élément de fermeture (22) est posé dans un siège (31) ou débloque celui-ci, un trou (29) dans lequel au moins une tige (30) est logée axialement mobile étant réalisé dans l'élément de fermeture (22), et le diamètre du trou (29) correspondant sensiblement au diamètre de la tige (30), et la ou les tiges (30) s'appuyant avec leur partie d'extrémité (38 ; 38a) opposée à l'élément de fermeture (22) au moins directement contre un élément d'appui (34). Selon l'invention, un élément de compensation angulaire (40 ; 50) est disposé entre la partie d'extrémité (38 ; 38a) de la ou des tiges (30) et l'élément d'appui (34), et une surface d'appui (45 ; 45a) de forme annulaire est réalisée entre l'élément de compensation angulaire (40 ; 50) et la partie d'extrémité (38 ; 38a) de la ou des tiges (30).
PCT/EP2010/061023 2009-09-18 2010-07-29 Injecteur WO2011032770A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10742454.1A EP2478208B1 (fr) 2009-09-18 2010-07-29 Injecteur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009029563.1 2009-09-18
DE102009029563A DE102009029563A1 (de) 2009-09-18 2009-09-18 Injektor

Publications (1)

Publication Number Publication Date
WO2011032770A1 true WO2011032770A1 (fr) 2011-03-24

Family

ID=42880610

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/061023 WO2011032770A1 (fr) 2009-09-18 2010-07-29 Injecteur

Country Status (3)

Country Link
EP (1) EP2478208B1 (fr)
DE (1) DE102009029563A1 (fr)
WO (1) WO2011032770A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013221554A1 (de) * 2013-10-23 2015-04-23 Robert Bosch Gmbh Kraftstoffinjektor
DE102015202726A1 (de) * 2015-02-16 2016-08-18 Robert Bosch Gmbh Steuerventilanordnung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006021741A1 (de) 2006-05-10 2007-11-15 Robert Bosch Gmbh Kraftstoffinjektor mit druckausgeglichenem Steuerventil
DE102007047425A1 (de) * 2007-10-04 2009-04-09 Robert Bosch Gmbh Steuerventil für einen Kraftstoffinjektor
DE102008003348A1 (de) * 2008-01-07 2009-07-09 Robert Bosch Gmbh Kraftstoffinjektor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006021741A1 (de) 2006-05-10 2007-11-15 Robert Bosch Gmbh Kraftstoffinjektor mit druckausgeglichenem Steuerventil
DE102007047425A1 (de) * 2007-10-04 2009-04-09 Robert Bosch Gmbh Steuerventil für einen Kraftstoffinjektor
DE102008003348A1 (de) * 2008-01-07 2009-07-09 Robert Bosch Gmbh Kraftstoffinjektor

Also Published As

Publication number Publication date
DE102009029563A1 (de) 2011-03-24
EP2478208A1 (fr) 2012-07-25
EP2478208B1 (fr) 2017-09-06

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