FR3050770B1 - FUEL INJECTOR - Google Patents

FUEL INJECTOR Download PDF

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Publication number
FR3050770B1
FR3050770B1 FR1653911A FR1653911A FR3050770B1 FR 3050770 B1 FR3050770 B1 FR 3050770B1 FR 1653911 A FR1653911 A FR 1653911A FR 1653911 A FR1653911 A FR 1653911A FR 3050770 B1 FR3050770 B1 FR 3050770B1
Authority
FR
France
Prior art keywords
top guide
nozzle body
guide assembly
valve body
fuel injector
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.)
Active
Application number
FR1653911A
Other languages
French (fr)
Other versions
FR3050770A1 (en
Inventor
Mathieu Andre
Jorge Martinez
Gildas Bureau
Anthony Piton
David Menu
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 Technologies IP Ltd
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 Technologies IP Ltd, Delphi International Operations Luxembourg SARL filed Critical Delphi Technologies IP Ltd
Priority to FR1653911A priority Critical patent/FR3050770B1/en
Priority to PCT/EP2017/060293 priority patent/WO2017186956A1/en
Publication of FR3050770A1 publication Critical patent/FR3050770A1/en
Application granted granted Critical
Publication of FR3050770B1 publication Critical patent/FR3050770B1/en
Active 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
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus
    • 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
    • F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
    • 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
    • F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
    • F02M65/005—Measuring or detecting injection-valve lift, e.g. to determine injection timing
    • 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
    • F02M2200/24—Fuel-injection apparatus with sensors
    • F02M2200/245—Position sensors, e.g. Hall sensors

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

Ensemble guide haut (42) adapté à être agencé dans un injecteur (10) de carburant et s'étendant le long d'un l'axe longitudinal (X), comprimé entre un corps de buse (16) et un corps de vanne de contrôle (20), l'ensemble guide haut (42) comprenant un membre guide haut (56) ayant une base cylindrique supérieure comprenant (60) comprenant une face latérale (64) cylindrique, une face plane haute (66) adaptée à être comprimé contre le corps de vanne (20), une face plane basse (68) adaptée à être comprimé contre le corps de buse (16) et un alésage (58) débouchant longitudinal agencé pour permettre à une aiguille (14) de coulisser. L'injecteur (10) est agencé de sorte qu'en utilisation le corps de buse (16) soit en contact électrique avec la masse (M). L'ensemble guide haut (42) est électriquement isolé entre le corps de buse (16) et le corps de vanne (20).Top guide assembly (42) adapted to be arranged in a fuel injector (10) and extending along a longitudinal axis (X), compressed between a nozzle body (16) and a valve body control (20), the top guide assembly (42) comprising a top guide member (56) having an upper cylindrical base comprising (60) comprising a cylindrical side face (64), a high planar face (66) adapted to be compressed against the valve body (20), a flat bottom face (68) adapted to be compressed against the nozzle body (16) and a bore (58) opening out longitudinally arranged to allow a needle (14) to slide. The injector (10) is arranged so that in use the nozzle body (16) is in electrical contact with the ground (M). The top guide assembly (42) is electrically isolated between the nozzle body (16) and the valve body (20).

FR1653911A 2016-04-29 2016-04-29 FUEL INJECTOR Active FR3050770B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1653911A FR3050770B1 (en) 2016-04-29 2016-04-29 FUEL INJECTOR
PCT/EP2017/060293 WO2017186956A1 (en) 2016-04-29 2017-04-28 Fuel injector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1653911 2016-04-29
FR1653911A FR3050770B1 (en) 2016-04-29 2016-04-29 FUEL INJECTOR

Publications (2)

Publication Number Publication Date
FR3050770A1 FR3050770A1 (en) 2017-11-03
FR3050770B1 true FR3050770B1 (en) 2019-12-20

Family

ID=56322161

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1653911A Active FR3050770B1 (en) 2016-04-29 2016-04-29 FUEL INJECTOR

Country Status (2)

Country Link
FR (1) FR3050770B1 (en)
WO (1) WO2017186956A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3075887A1 (en) * 2017-12-21 2019-06-28 Delphi Technologies Ip Limited FUEL INJECTOR
DE202018100337U1 (en) * 2018-01-22 2019-04-24 Liebherr-Components Deggendorf Gmbh Injector and device for detecting the state of such an injector
DE102018101351A1 (en) * 2018-01-22 2019-07-25 Liebherr-Components Deggendorf Gmbh Seat plate for an injector and method for producing such a seat plate
GB2584474A (en) * 2019-06-05 2020-12-09 Delphi Tech Ip Ltd Fuel injector
DE102019121538A1 (en) * 2019-08-09 2021-02-11 Liebherr-Components Deggendorf Gmbh Seat plate for an injector and method for producing such a seat plate
DE102020108668A1 (en) 2020-03-30 2021-09-30 Liebherr-Components Deggendorf Gmbh Needle lift switch and fuel injector with such a needle lift switch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002016757A1 (en) * 2000-08-21 2002-02-28 Volvo Lastvagnar Ab Needle position sensing device
DE10313623A1 (en) * 2003-03-26 2004-10-21 Siemens Ag Contacting device for an injector of an injection system for fuel injection and injector with a contacting device
DE102011016168B4 (en) * 2011-04-05 2015-02-12 L'orange Gmbh Fuel injector for an internal combustion engine
FR3027068B1 (en) * 2014-10-08 2019-09-13 Delphi Technologies Ip Limited FUEL INJECTOR

Also Published As

Publication number Publication date
WO2017186956A1 (en) 2017-11-02
FR3050770A1 (en) 2017-11-03

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