FR2906848B1 - DEVICE FOR HOLDING A NEEDLE OF A FUEL INJECTOR, AND ASSOCIATED FUEL INJECTOR - Google Patents

DEVICE FOR HOLDING A NEEDLE OF A FUEL INJECTOR, AND ASSOCIATED FUEL INJECTOR

Info

Publication number
FR2906848B1
FR2906848B1 FR0654168A FR0654168A FR2906848B1 FR 2906848 B1 FR2906848 B1 FR 2906848B1 FR 0654168 A FR0654168 A FR 0654168A FR 0654168 A FR0654168 A FR 0654168A FR 2906848 B1 FR2906848 B1 FR 2906848B1
Authority
FR
France
Prior art keywords
fuel injector
needle
holding
axial
support plate
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
FR0654168A
Other languages
French (fr)
Other versions
FR2906848A1 (en
Inventor
Nadim Malek
Andre Agneray
Laurent Levin
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.)
Renault SAS
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Priority to FR0654168A priority Critical patent/FR2906848B1/en
Priority to EP07823858A priority patent/EP2078158B1/en
Priority to DE602007007233T priority patent/DE602007007233D1/en
Priority to AT07823858T priority patent/ATE471452T1/en
Priority to PCT/FR2007/052013 priority patent/WO2008043929A2/en
Publication of FR2906848A1 publication Critical patent/FR2906848A1/en
Application granted granted Critical
Publication of FR2906848B1 publication Critical patent/FR2906848B1/en
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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/04—Injectors peculiar thereto
    • F02M69/041—Injectors peculiar thereto having vibrating means for atomizing the fuel, e.g. with sonic or ultrasonic vibrations
    • 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
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/701—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger mechanical

Landscapes

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

Abstract

The device for holding a fuel injector needle comprises a support plate (40) and an axial-retention element (44) for supporting and retaining the injector needle. The axial-retention element (44) comprises a fixing portion (52) collaborating with a complementary portion of the support plate (40), and a retaining portion provided with inwardly directed radial projections (56) each having a surface for contact with the needle.
FR0654168A 2006-10-09 2006-10-09 DEVICE FOR HOLDING A NEEDLE OF A FUEL INJECTOR, AND ASSOCIATED FUEL INJECTOR Expired - Fee Related FR2906848B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR0654168A FR2906848B1 (en) 2006-10-09 2006-10-09 DEVICE FOR HOLDING A NEEDLE OF A FUEL INJECTOR, AND ASSOCIATED FUEL INJECTOR
EP07823858A EP2078158B1 (en) 2006-10-09 2007-09-26 Device for holding a fuel injector needle and associated fuel injector
DE602007007233T DE602007007233D1 (en) 2006-10-09 2007-09-26 DEVICE FOR HOLDING A FUEL INJECTION NEEDLE AND ASSOCIATED FUEL INJECTION VALVE
AT07823858T ATE471452T1 (en) 2006-10-09 2007-09-26 DEVICE FOR HOLDING A FUEL INJECTION NEEDLE AND ASSOCIATED FUEL INJECTION VALVE
PCT/FR2007/052013 WO2008043929A2 (en) 2006-10-09 2007-09-26 Device for holding a fuel injector needle and associated fuel injector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0654168A FR2906848B1 (en) 2006-10-09 2006-10-09 DEVICE FOR HOLDING A NEEDLE OF A FUEL INJECTOR, AND ASSOCIATED FUEL INJECTOR

Publications (2)

Publication Number Publication Date
FR2906848A1 FR2906848A1 (en) 2008-04-11
FR2906848B1 true FR2906848B1 (en) 2012-04-20

Family

ID=38093163

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0654168A Expired - Fee Related FR2906848B1 (en) 2006-10-09 2006-10-09 DEVICE FOR HOLDING A NEEDLE OF A FUEL INJECTOR, AND ASSOCIATED FUEL INJECTOR

Country Status (5)

Country Link
EP (1) EP2078158B1 (en)
AT (1) ATE471452T1 (en)
DE (1) DE602007007233D1 (en)
FR (1) FR2906848B1 (en)
WO (1) WO2008043929A2 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2831613B1 (en) * 2001-10-25 2004-01-23 Renault DEVICE FOR FIXING AN ACOUSTIC IMPEDANCE BREAKING MEANS ON A ROD OF A FUEL INJECTION DEVICE
FR2857418B1 (en) * 2003-07-10 2007-04-06 Renault Sa DEVICE FOR PRETENSION APPLICATION TO A VALVE OF A FUEL INJECTOR AND MEANS FOR BREAKING THE ACOUSTIC IMPEDANCE OF THE INJECTOR
DE102004057246A1 (en) * 2004-11-26 2006-06-01 Robert Bosch Gmbh fuel Injector
DE102005015732B4 (en) * 2005-04-06 2017-02-09 Robert Bosch Gmbh Fuel injector with hydraulic driver

Also Published As

Publication number Publication date
EP2078158B1 (en) 2010-06-16
WO2008043929A2 (en) 2008-04-17
DE602007007233D1 (en) 2010-07-29
EP2078158A2 (en) 2009-07-15
FR2906848A1 (en) 2008-04-11
WO2008043929A3 (en) 2008-05-29
ATE471452T1 (en) 2010-07-15

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20160630