EP1533519A1 - Motor eines Kraftfahrzeugs mit Injektor-Rail und Injektor - Google Patents

Motor eines Kraftfahrzeugs mit Injektor-Rail und Injektor Download PDF

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Publication number
EP1533519A1
EP1533519A1 EP04300777A EP04300777A EP1533519A1 EP 1533519 A1 EP1533519 A1 EP 1533519A1 EP 04300777 A EP04300777 A EP 04300777A EP 04300777 A EP04300777 A EP 04300777A EP 1533519 A1 EP1533519 A1 EP 1533519A1
Authority
EP
European Patent Office
Prior art keywords
rail
injector
engine
generator
membrane
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Withdrawn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
EP04300777A
Other languages
English (en)
French (fr)
Inventor
Gilles Hamadani
Franck Levy
Alice Weck
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
Publication of EP1533519A1 publication Critical patent/EP1533519A1/de
Withdrawn legal-status Critical Current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
    • F02M27/00—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like
    • F02M27/08—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like by sonic or ultrasonic waves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/04—Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—Common rails
    • 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
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails

Definitions

  • the invention relates to the engine injectors of vehicle.
  • An object of the invention is to allow cleaning injectors without complicating their structure.
  • the waves being generated at a distance of the injector the structure of the injector is simplified.
  • the same generator can generate waves to several injectors engine, or all of the engine injectors. So we simplify the overall structure of the engine while reducing its cost.
  • Also provided according to the invention a method to clean an engine injector, in which one generates ultrasonic waves in a motor rail of so that the waves propagate to at least one engine injector.
  • FIGS. 2 a preferred embodiment of the motor according to the invention. It is an internal combustion engine vehicle and in this case a diesel engine.
  • the engine 2 comprises, in a conventional manner, a pump high pressure 4 and an injector rail 6 having an elongated general shape.
  • the pump 4 is suitable for bring the fuel under pressure into the rail 6, by introducing it into the rail from one end longitudinal of this one, located on the left in the figure 1. This mixture will be injected into the engine cylinders for its operation.
  • the engine includes several injectors 8, for example 4 or 6, fed in parallel each from the rail 6 with the fuel.
  • Each of these injectors is in communication with one of the engine cylinders so as to bring the fuel into the defined combustion chamber by this cylinder.
  • the engine comprises a generator 10 ultrasonic waves.
  • This generator is in this case positioned at the right longitudinal end of the rail opposite to the left end associated with the pump 4.
  • the generator 10 includes a piezoelectric actuator 12 and a housing 13 actuator control 12.
  • the engine comprises a circular flat membrane 14 extending in a plane perpendicular to the direction longitudinal rail.
  • the membrane is supported by the area of its peripheral edge and by its front face 16 against an annular shoulder 18 of the rail.
  • the membrane has a second face 20 opposite to the first face 16 and in contact with the actuator 12 at the center of this face.
  • the membrane 14 may be for example metal or made of plastic
  • the engine comprises means for fixing the membrane in the rail, constituted in this case by a nut 19 urging on the side of the second side 20 the membrane in the direction of the shoulder 18.
  • the first face 16 of the membrane is intended to be in contact with the liquid 22 filling the internal chamber of the rail 6.
  • the generator 10 produces ultrasonic waves directly transmitted to the membrane 14, received by it, and transmitted to the fuel 22 filling the rail.
  • Each of the injectors 8 being by elsewhere in fuel communication with the interior of the rail, these waves propagate through the liquid 22 inside each injector 8 up to the nozzle injection to clean them.
  • the waves clean up the or the orifices of the injector.
  • the invention applies to all types of nozzles and especially to highly permeable nozzles sensitive to fouling phenomena, which are very useful to reach the future standards of depollution.
  • the interposition of the membrane between on the one hand the fuel 22 under pressure and secondly the actuator 12 makes it possible to balance the membrane under pressure without that it undergoes unbalanced solicitations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fuel-Injection Apparatus (AREA)
EP04300777A 2003-11-12 2004-11-10 Motor eines Kraftfahrzeugs mit Injektor-Rail und Injektor Withdrawn EP1533519A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0313227 2003-11-12
FR0313227A FR2862088B1 (fr) 2003-11-12 2003-11-12 Moteur de vehicule comprenant un rail d'injecteur et un injecteur

Publications (1)

Publication Number Publication Date
EP1533519A1 true EP1533519A1 (de) 2005-05-25

Family

ID=34429973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04300777A Withdrawn EP1533519A1 (de) 2003-11-12 2004-11-10 Motor eines Kraftfahrzeugs mit Injektor-Rail und Injektor

Country Status (2)

Country Link
EP (1) EP1533519A1 (de)
FR (1) FR2862088B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2774966A1 (fr) 1998-02-18 1999-08-20 Philippe Lesage Suspension arriere pour velocipede, et velocipede comportant une telle suspension
ITBO20120592A1 (it) * 2012-10-29 2014-04-30 Magneti Marelli Spa Sistema di alimentazione di carburante provvisto di un dispositivo di riscaldamento mediante microonde per un motore a combustione interna
WO2015167883A1 (en) * 2014-04-28 2015-11-05 Fca Us Llc Active engine fuel pressure pulsation cancellation techniques
DE102016225400A1 (de) * 2016-12-19 2018-06-21 Robert Bosch Gmbh Dämpfungssystem in einem Hochdruck-Kraftstoffeinspritzsystem

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996033344A1 (en) * 1995-04-21 1996-10-24 New Age Automotive Pty. Ltd. Injector maintenance
WO2001083980A1 (en) * 2000-04-25 2001-11-08 Ma (Innovation) Fsis Limited Fuel separation and injection system
US20020070298A1 (en) * 2000-12-11 2002-06-13 Jameson Lee Kirby Unitized injector modified for ultrasonically stimulated operation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996033344A1 (en) * 1995-04-21 1996-10-24 New Age Automotive Pty. Ltd. Injector maintenance
WO2001083980A1 (en) * 2000-04-25 2001-11-08 Ma (Innovation) Fsis Limited Fuel separation and injection system
US20020070298A1 (en) * 2000-12-11 2002-06-13 Jameson Lee Kirby Unitized injector modified for ultrasonically stimulated operation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2774966A1 (fr) 1998-02-18 1999-08-20 Philippe Lesage Suspension arriere pour velocipede, et velocipede comportant une telle suspension
ITBO20120592A1 (it) * 2012-10-29 2014-04-30 Magneti Marelli Spa Sistema di alimentazione di carburante provvisto di un dispositivo di riscaldamento mediante microonde per un motore a combustione interna
WO2015167883A1 (en) * 2014-04-28 2015-11-05 Fca Us Llc Active engine fuel pressure pulsation cancellation techniques
DE102016225400A1 (de) * 2016-12-19 2018-06-21 Robert Bosch Gmbh Dämpfungssystem in einem Hochdruck-Kraftstoffeinspritzsystem
DE102016225400B4 (de) 2016-12-19 2022-12-29 Robert Bosch Gmbh Dämpfungssystem in einem Hochdruck-Kraftstoffeinspritzsystem

Also Published As

Publication number Publication date
FR2862088B1 (fr) 2006-07-21
FR2862088A1 (fr) 2005-05-13

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