FR3048456B1 - INJECTOR NEEDLE SPRING - Google Patents

INJECTOR NEEDLE SPRING Download PDF

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Publication number
FR3048456B1
FR3048456B1 FR1651803A FR1651803A FR3048456B1 FR 3048456 B1 FR3048456 B1 FR 3048456B1 FR 1651803 A FR1651803 A FR 1651803A FR 1651803 A FR1651803 A FR 1651803A FR 3048456 B1 FR3048456 B1 FR 3048456B1
Authority
FR
France
Prior art keywords
injector needle
needle spring
chamber
control
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
FR1651803A
Other languages
French (fr)
Other versions
FR3048456A1 (en
Inventor
Philippe LeGrand
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 FR1651803A priority Critical patent/FR3048456B1/en
Publication of FR3048456A1 publication Critical patent/FR3048456A1/en
Application granted granted Critical
Publication of FR3048456B1 publication Critical patent/FR3048456B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/12—Attachments or mountings
    • F16F1/123—Attachments or mountings characterised by the ends of the spring being specially adapted, e.g. to form an eye for engagement with a radial insert
    • 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
    • F02M2200/50—Arrangements of springs for valves used in fuel injectors or fuel injection pumps
    • 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
    • F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
    • F02M2547/006—Springs assisting hydraulic closing force

Abstract

Un Injecteur (10) de carburant d'un moteur de combustion interne s'étend le long d'un axe principal (X). L'injecteur comprend une chambre de contrôle (20) dans laquelle est agencé un ressort hélicoïdal (22) axialement comprimé entre un membre de vanne (18) et une aire d'appui (36) d'une face (28) de la chambre de contrôle (20) et le ressort de compression (22) a ses deux bases opposées dressées (38). Ladite aire d'appui (36) est une surface annulaire de 360 degrés.A fuel injector (10) of an internal combustion engine extends along a main axis (X). The injector comprises a control chamber (20) in which is arranged a helical spring (22) axially compressed between a valve member (18) and a bearing surface (36) of a face (28) of the chamber control (20) and the compression spring (22) has its two opposed upright bases (38). Said bearing area (36) is an annular surface of 360 degrees.

FR1651803A 2016-03-03 2016-03-03 INJECTOR NEEDLE SPRING Active FR3048456B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1651803A FR3048456B1 (en) 2016-03-03 2016-03-03 INJECTOR NEEDLE SPRING

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1651803A FR3048456B1 (en) 2016-03-03 2016-03-03 INJECTOR NEEDLE SPRING
FR1651803 2016-03-03

Publications (2)

Publication Number Publication Date
FR3048456A1 FR3048456A1 (en) 2017-09-08
FR3048456B1 true FR3048456B1 (en) 2019-05-17

Family

ID=55752627

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1651803A Active FR3048456B1 (en) 2016-03-03 2016-03-03 INJECTOR NEEDLE SPRING

Country Status (1)

Country Link
FR (1) FR3048456B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3092625B1 (en) * 2019-02-07 2021-04-16 Delphi Tech Ip Ltd Top guide assembly

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2328881A1 (en) * 1975-10-22 1977-05-20 Nord Ressorts End shaping of helical compression springs - using progressive pitch reduction over diametrally opposed end regions to reduce noise
DE19508979C2 (en) * 1994-05-20 2000-08-10 Daimler Chrysler Ag Flange connection of two pipe sections in the exhaust pipe system of an internal combustion engine
GB9508623D0 (en) * 1995-04-28 1995-06-14 Lucas Ind Plc "Fuel injection nozzle"
JP4870015B2 (en) * 2006-06-13 2012-02-08 京三電機株式会社 Pressure regulating valve
US7963464B2 (en) * 2008-01-23 2011-06-21 Caterpillar Inc. Fuel injector and method of assembly therefor
DE102013005066A1 (en) * 2013-03-22 2014-09-25 Audi Ag Helical compression spring arrangement
EP2940287A1 (en) * 2014-05-01 2015-11-04 Delphi International Operations Luxembourg S.à r.l. Fuel injector filter
DE102014212343A1 (en) * 2014-06-26 2015-12-31 Robert Bosch Gmbh fuel injector

Also Published As

Publication number Publication date
FR3048456A1 (en) 2017-09-08

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