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FR3073904B1 - Aiguille de vanne d'un injecteur - Google Patents

Aiguille de vanne d'un injecteur Download PDF

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Publication number
FR3073904B1
FR3073904B1 FR1761103A FR1761103A FR3073904B1 FR 3073904 B1 FR3073904 B1 FR 3073904B1 FR 1761103 A FR1761103 A FR 1761103A FR 1761103 A FR1761103 A FR 1761103A FR 3073904 B1 FR3073904 B1 FR 3073904B1
Authority
FR
France
Prior art keywords
valve needle
needle
vibration
fuel injector
natural frequency
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 - Fee Related
Application number
FR1761103A
Other languages
English (en)
Other versions
FR3073904A1 (fr
Inventor
Nicolas Rodier
Thierry Thibault
Matthieu Lacotte
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.)
Delphi Technologies IP Ltd
Original Assignee
Delphi International Operations Luxembourg SARL
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 Delphi International Operations Luxembourg SARL filed Critical Delphi International Operations Luxembourg SARL
Priority to FR1761103A priority Critical patent/FR3073904B1/fr
Priority to EP18204271.3A priority patent/EP3489505B1/fr
Publication of FR3073904A1 publication Critical patent/FR3073904A1/fr
Application granted granted Critical
Publication of FR3073904B1 publication Critical patent/FR3073904B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/166—Selection of particular materials
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0635—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding
    • F02M51/0642—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto
    • F02M51/0653—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto the valve being an elongated body, e.g. a needle valve
    • 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
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/90—Selection of particular materials
    • F02M2200/9053—Metals

Landscapes

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

Abstract

Afin de réduire les émissions et d'améliorer les performances des moteurs à combustion interne par injection, on réalise une pluralité d'injection lors d'un cycle de fonctionnement du moteur. L'objet de la présente invention est de fournir une solution en effectuant un meilleur contrôle de la quantité injectée avec une séparation hydraulique très faible entre deux injections successives permettant une amélioration de la combustion. Une aiguille de vanne (14) d'un injecteur de carburant (10) s'étend le long d'un axe longitudinal (X) entre une tête d'aiguille (28) et une pointe d'aiguille (30). L'aiguille de vanne (14) a une fréquence propre (F14) de vibration d'au moins 1,3 inférieure à la fréquence propre (F114) de vibration d'une aiguille de vanne (114) de l'art antérieur adaptée à être agencée dans l'injecteur de carburant. Une des possibilités est que l'aiguille de vanne (14) comprenne une pièce additionnelle (24) ajoutée au voisinage de la tête d'aiguille (28).
FR1761103A 2017-11-23 2017-11-23 Aiguille de vanne d'un injecteur Expired - Fee Related FR3073904B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1761103A FR3073904B1 (fr) 2017-11-23 2017-11-23 Aiguille de vanne d'un injecteur
EP18204271.3A EP3489505B1 (fr) 2017-11-23 2018-11-05 Aiguille de vanne d'un injecteur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1761103A FR3073904B1 (fr) 2017-11-23 2017-11-23 Aiguille de vanne d'un injecteur
FR1761103 2017-11-23

Publications (2)

Publication Number Publication Date
FR3073904A1 FR3073904A1 (fr) 2019-05-24
FR3073904B1 true FR3073904B1 (fr) 2021-07-30

Family

ID=60923760

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1761103A Expired - Fee Related FR3073904B1 (fr) 2017-11-23 2017-11-23 Aiguille de vanne d'un injecteur

Country Status (2)

Country Link
EP (1) EP3489505B1 (fr)
FR (1) FR3073904B1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926217A1 (de) * 1979-06-29 1981-01-08 Bosch Gmbh Robert Kraftstoffeinspritzventil
DE4303813C1 (de) * 1993-02-10 1994-06-30 Bosch Gmbh Robert Kraftstoffeinspritzdüse für Brennkraftmaschinen
JP2000297720A (ja) * 1999-04-13 2000-10-24 Hitachi Ltd 燃料噴射装置
US7963458B2 (en) * 2006-01-23 2011-06-21 Kimberly-Clark Worldwide, Inc. Ultrasonic liquid delivery device
DE102009001325A1 (de) * 2009-03-04 2010-09-09 Robert Bosch Gmbh Düsennadel für einen Kraftstoffinjektor
GB201309122D0 (en) * 2013-05-21 2013-07-03 Delphi Tech Holding Sarl Fuel Injector
DE102015221790A1 (de) * 2015-11-06 2017-05-11 Robert Bosch Gmbh Elektromagnetisch betätigbares Ventil und Verfahren zur Herstellung einer Ventilnadel für ein elektromagnetisch betätigbares Ventil

Also Published As

Publication number Publication date
EP3489505B1 (fr) 2020-10-14
FR3073904A1 (fr) 2019-05-24
EP3489505A1 (fr) 2019-05-29

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Legal Events

Date Code Title Description
PLSC Publication of the preliminary search report

Effective date: 20190524

PLFP Fee payment

Year of fee payment: 3

TP Transmission of property

Owner name: DELPHI TECHNOLOGIES IP LIMITED, BB

Effective date: 20200504

PLFP Fee payment

Year of fee payment: 4

ST Notification of lapse

Effective date: 20220705