WO2009053651A3 - Fluid injection device - Google Patents

Fluid injection device Download PDF

Info

Publication number
WO2009053651A3
WO2009053651A3 PCT/FR2008/051871 FR2008051871W WO2009053651A3 WO 2009053651 A3 WO2009053651 A3 WO 2009053651A3 FR 2008051871 W FR2008051871 W FR 2008051871W WO 2009053651 A3 WO2009053651 A3 WO 2009053651A3
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle
axis
seat
fluid
needle
Prior art date
Application number
PCT/FR2008/051871
Other languages
French (fr)
Other versions
WO2009053651A2 (en
Inventor
Andre Agneray
Nadim Malek
Philippe Masson
Laurent Levin
Original Assignee
Renault Sa
Andre Agneray
Nadim Malek
Philippe Masson
Laurent Levin
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 Sa, Andre Agneray, Nadim Malek, Philippe Masson, Laurent Levin filed Critical Renault Sa
Priority to EP08843329A priority Critical patent/EP2198148A2/en
Publication of WO2009053651A2 publication Critical patent/WO2009053651A2/en
Publication of WO2009053651A3 publication Critical patent/WO2009053651A3/en

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
    • 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
    • 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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • 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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • 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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1866—Valve seats or member ends having multiple cones

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 invention relates to a fluid injector having a main lengthwise axis and comprising at least the following: a nozzle extending longitudinally along said axis and having a seat and at least one injection orifice for the exit of the fluid from the nozzle, the injection orifice communicating with a fluid supply duct; a needle that is movable axially inside the nozzle and has, along said axis, a first or free end defining a valve with the seat of the nozzle, in an area of contact between these. According to the invention, the nozzle extends, axially towards its free end, past the first end of the needle, where it comprises, perpendicular to this axis, a check wall where said seat is defined.
PCT/FR2008/051871 2007-10-16 2008-10-16 Fluid injection device WO2009053651A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08843329A EP2198148A2 (en) 2007-10-16 2008-10-16 Fluid injection device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0758353A FR2922289A1 (en) 2007-10-16 2007-10-16 FLUID INJECTION DEVICE
FR0758353 2007-10-16

Publications (2)

Publication Number Publication Date
WO2009053651A2 WO2009053651A2 (en) 2009-04-30
WO2009053651A3 true WO2009053651A3 (en) 2009-07-23

Family

ID=39638867

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2008/051871 WO2009053651A2 (en) 2007-10-16 2008-10-16 Fluid injection device

Country Status (3)

Country Link
EP (1) EP2198148A2 (en)
FR (1) FR2922289A1 (en)
WO (1) WO2009053651A2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10008445A1 (en) * 1999-02-25 2000-09-07 Avl List Gmbh Injection jet for direct-injection internal combustion engine, with entry cross section of first injection aperture in region of guide cylinder jacket
DE19929473A1 (en) * 1999-06-26 2000-12-28 Bosch Gmbh Robert Fuel injection valve has injection hole in pressure chamber(s) with inlet, outlet openings, integrated into valve body so inlet opening covered by closure head in closed position, otherwise exposed
EP1172552A1 (en) * 2000-07-13 2002-01-16 Renault Fuel injection device for internal combustion engine
FR2895031A1 (en) * 2005-12-19 2007-06-22 Renault Sas FUEL INJECTOR FOR INTERNAL COMBUSTION ENGINE
FR2908835A1 (en) * 2006-11-22 2008-05-23 Renault Sas Fuel injector e.g. inwards opening needle type injector, for motor vehicle, has blocking control hydraulic chamber with fuel inlet and outlet orifices through which chamber communicates with supply and injection orifices, respectively
WO2009007596A2 (en) * 2007-06-27 2009-01-15 Renault S.A.S. Fluid injection device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6308901B1 (en) * 2000-02-08 2001-10-30 Siemens Automotive Corporation Fuel injector with a cone shaped bent spray
DE10123860A1 (en) * 2001-05-16 2002-11-28 Bosch Gmbh Robert Fuel injector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10008445A1 (en) * 1999-02-25 2000-09-07 Avl List Gmbh Injection jet for direct-injection internal combustion engine, with entry cross section of first injection aperture in region of guide cylinder jacket
DE19929473A1 (en) * 1999-06-26 2000-12-28 Bosch Gmbh Robert Fuel injection valve has injection hole in pressure chamber(s) with inlet, outlet openings, integrated into valve body so inlet opening covered by closure head in closed position, otherwise exposed
EP1172552A1 (en) * 2000-07-13 2002-01-16 Renault Fuel injection device for internal combustion engine
FR2895031A1 (en) * 2005-12-19 2007-06-22 Renault Sas FUEL INJECTOR FOR INTERNAL COMBUSTION ENGINE
FR2908835A1 (en) * 2006-11-22 2008-05-23 Renault Sas Fuel injector e.g. inwards opening needle type injector, for motor vehicle, has blocking control hydraulic chamber with fuel inlet and outlet orifices through which chamber communicates with supply and injection orifices, respectively
WO2009007596A2 (en) * 2007-06-27 2009-01-15 Renault S.A.S. Fluid injection device

Also Published As

Publication number Publication date
FR2922289A1 (en) 2009-04-17
WO2009053651A2 (en) 2009-04-30
EP2198148A2 (en) 2010-06-23

Similar Documents

Publication Publication Date Title
MY150190A (en) Effervescent nozzle for catalyst injection
ATE487049T1 (en) BALL SEAT VALVE WITH REDUCED EROSION BEHAVIOR
UA107363C2 (en) CATHETER DEVICE
ATE496217T1 (en) NOZZLE ASSEMBLY FOR AN INJECTOR AND INJECTOR
WO2010027575A3 (en) Piloted variable area fuel injector
ATE532960T1 (en) FUEL INJECTOR NOZZLE
MX2008013715A (en) Injection moulding nozzle and tip therefor.
EP2846090A3 (en) Integrated heat shield
EP2067949A3 (en) Nozzle system for injector
WO2009115688A8 (en) Gas filling and dispensing device, and filling method
PL2067549T3 (en) Stopper rod
WO2011041049A3 (en) Internally nested variable-area fuel nozzle
EP2365203A3 (en) Injector assembly for a rocket engine
WO2012010657A3 (en) Nozzle body comprising a blind hole
WO2010027573A3 (en) Dual action fuel injection nozzle
ATE524649T1 (en) DUAL SPRAY INJECTOR
WO2008126482A1 (en) Fuel injection valve
US10077748B2 (en) Fuel injector for common rail
WO2008015346A3 (en) Compact linear implantable site
WO2010003473A3 (en) Injection molding nozzle for an injection molding tool
GB2449014A (en) Fuel injector having recessed check top
WO2009053651A3 (en) Fluid injection device
ATE466186T1 (en) FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES
NO20074105L (en) Device for injecting fluids
ATE448401T1 (en) INJECTOR

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08843329

Country of ref document: EP

Kind code of ref document: A2

WWE Wipo information: entry into national phase

Ref document number: 2008843329

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE