EP3218594A1 - Dispositif de réglage de jeu hydraulique disposé dans un servo-injecteur - Google Patents

Dispositif de réglage de jeu hydraulique disposé dans un servo-injecteur

Info

Publication number
EP3218594A1
EP3218594A1 EP15784021.6A EP15784021A EP3218594A1 EP 3218594 A1 EP3218594 A1 EP 3218594A1 EP 15784021 A EP15784021 A EP 15784021A EP 3218594 A1 EP3218594 A1 EP 3218594A1
Authority
EP
European Patent Office
Prior art keywords
lash adjuster
actuator
hydraulic lash
upper piston
spring
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Withdrawn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
EP15784021.6A
Other languages
German (de)
English (en)
Inventor
Michael Cooke
Callisto Genco
Christophe Tapin
Gael Guignon
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 International Operations Luxembourg SARL
Original Assignee
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 International Operations Luxembourg SARL filed Critical Delphi International Operations Luxembourg SARL
Publication of EP3218594A1 publication Critical patent/EP3218594A1/fr
Withdrawn legal-status Critical Current

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
    • 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
    • F02M61/167—Means for compensating clearance or thermal expansion
    • 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
    • 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
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic

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

L'invention porte sur un dispositif de réglage de jeu hydraulique (20), lequel dispositif est apte à être interposé dans un volume hydraulique (V), entre un actionneur (18) et un ensemble vanne de commande (22) d'un servo-injecteur (10), ledit volume (V) étant, lors de l'utilisation, rempli par un carburant. Le dispositif de réglage (20) comprend un piston inférieur (52) dans lequel est disposé de façon à pouvoir coulisser un piston supérieur (46), un ressort externe (72) et un ressort interne (64), les deux ressorts (72, 64) sollicitant le piston supérieur (46) vers l'actionneur (18). Le piston inférieur (52) a une forme de coupelle cylindrique ayant une paroi périphérique (54) et une paroi inférieure (58) sur laquelle est disposé le ressort interne (64) comprimé entre ladite paroi inférieure (58) du piston inférieur (52) et la face inférieure du piston supérieur (46).
EP15784021.6A 2014-11-11 2015-10-20 Dispositif de réglage de jeu hydraulique disposé dans un servo-injecteur Withdrawn EP3218594A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1420017.4A GB201420017D0 (en) 2014-11-11 2014-11-11 Hydraulic lash adjuster arrangement ina servo injector
PCT/EP2015/074229 WO2016074888A1 (fr) 2014-11-11 2015-10-20 Dispositif de réglage de jeu hydraulique disposé dans un servo-injecteur

Publications (1)

Publication Number Publication Date
EP3218594A1 true EP3218594A1 (fr) 2017-09-20

Family

ID=52118294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15784021.6A Withdrawn EP3218594A1 (fr) 2014-11-11 2015-10-20 Dispositif de réglage de jeu hydraulique disposé dans un servo-injecteur

Country Status (5)

Country Link
EP (1) EP3218594A1 (fr)
KR (1) KR20170081651A (fr)
CN (1) CN107002617A (fr)
GB (1) GB201420017D0 (fr)
WO (1) WO2016074888A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201509473D0 (en) * 2015-06-02 2015-07-15 Delphi Int Operations Lux Srl Sealing membrane for piezo actuator

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0656162B2 (ja) * 1987-03-03 1994-07-27 トヨタ自動車株式会社 ストロ−ク可変装置
JPH0754561Y2 (ja) * 1989-07-06 1995-12-18 本田技研工業株式会社 内燃機関の動弁装置
DE19500706C2 (de) * 1995-01-12 2003-09-25 Bosch Gmbh Robert Zumeßventil zur Dosierung von Flüssigkeiten oder Gasen
DE10203657A1 (de) * 2002-01-30 2003-08-28 Bosch Gmbh Robert Brennstoffeinspritzventil
DE102004005456A1 (de) * 2004-02-04 2005-08-25 Robert Bosch Gmbh Kraftstoffinjektor mit direktgesteuertem Einspritzventilglied
JP4345696B2 (ja) * 2004-06-21 2009-10-14 株式会社デンソー コモンレール用インジェクタ
DE102004044462A1 (de) * 2004-09-15 2006-03-30 Robert Bosch Gmbh Steuerventil für einen Injektor
DE102005015997A1 (de) * 2004-12-23 2006-07-13 Robert Bosch Gmbh Kraftstoffinjektor mit direkter Steuerung des Einspritzventilgliedes
DE102006026399A1 (de) * 2006-06-07 2007-12-13 Robert Bosch Gmbh Kraftstoffinjektor mit Servounterstützung
DE102007051554A1 (de) * 2007-10-29 2009-04-30 Robert Bosch Gmbh Kraftstoffeinspritzventil für eine Brennkraftmaschine
US8201543B2 (en) * 2009-05-14 2012-06-19 Cummins Intellectual Properties, Inc. Piezoelectric direct acting fuel injector with hydraulic link
DE102009029412A1 (de) * 2009-09-14 2011-03-17 Robert Bosch Gmbh Kraftstoffinjektor mit hydraulischer Kopplereinheit
DE102010029106A1 (de) * 2010-05-19 2011-11-24 Robert Bosch Gmbh Steifigkeitsoptimierter Kopplerkörper

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2016074888A1 *

Also Published As

Publication number Publication date
WO2016074888A1 (fr) 2016-05-19
KR20170081651A (ko) 2017-07-12
GB201420017D0 (en) 2014-12-24
CN107002617A (zh) 2017-08-01

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