EP2597296B1 - Ensemble de soupape pour soupape d'injection et soupape d'injection - Google Patents

Ensemble de soupape pour soupape d'injection et soupape d'injection Download PDF

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Publication number
EP2597296B1
EP2597296B1 EP11190294.6A EP11190294A EP2597296B1 EP 2597296 B1 EP2597296 B1 EP 2597296B1 EP 11190294 A EP11190294 A EP 11190294A EP 2597296 B1 EP2597296 B1 EP 2597296B1
Authority
EP
European Patent Office
Prior art keywords
armature
valve
valve needle
fluid
arrangement
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.)
Not-in-force
Application number
EP11190294.6A
Other languages
German (de)
English (en)
Other versions
EP2597296A1 (fr
Inventor
Paolo Bertini
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive GmbH
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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Priority to EP11190294.6A priority Critical patent/EP2597296B1/fr
Publication of EP2597296A1 publication Critical patent/EP2597296A1/fr
Application granted granted Critical
Publication of EP2597296B1 publication Critical patent/EP2597296B1/fr
Not-in-force 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0685—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature and the valve being allowed to move relatively to each other or not being attached to each other
    • 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
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • 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
    • F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift
    • 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
    • F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
    • F02M2200/304—Fuel-injection apparatus having mechanical parts, the movement of which is damped using hydraulic means

Definitions

  • valve assembly and of the respective injection valve is, that in an embodiment, where the cup 52 is fixedly coupled to the valve body 12, abutting of the armature arrangement 22 against the upper retainer 23 and the pole piece 37 (in this situation the volume 53 increases and drift of fuel occurs into the cup 52), when the valve needle 20 leaves its closing position, as well as abutting of the valve needle 20 against the seat plate 32 when reaching its closing position, is hydraulically dampened by the flow of fluid through the leakage paths 56.
  • the valve needle bouncingly bumps towards the seat plate and thus reopens in an undesired manner the flow path to the injection nozzle for a short time. Reopening, however, would create unwanted emissions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (6)

  1. Ensemble soupape (11) d'une soupape d'injection (10), comprenant :
    - un corps de soupape (12) qui comprend un axe longitudinal central (L), le corps de soupape (12) comprenant une cavité (18) avec une partie entrée de fluide (42) et une partie sortie de fluide (40) ;
    - un pointeau de soupape (20) mobile de manière axiale dans la cavité (18), le pointeau de soupape (20) empêchant un écoulement de fluide à travers la partie sortie de fluide (40) dans une position de fermeture, et laissant passer l'écoulement de fluide à travers la partie sortie de fluide (40) dans d'autres positions ;
    - un dispositif de retenue supérieur (23) agencé dans la cavité (18) et accouplé de manière fixe au pointeau de valve (20) ;
    - une unité actionneur électromagnétique (36) conçue de façon à actionner le pointeau de soupape (20), l'unité actionneur (36) comprenant un agencement d'armature (22) qui est agencé dans la cavité (18) et qui peut être déplacé de manière axiale par rapport au pointeau de soupape (20), l'agencement d'armature (22) étant conçu de façon à être accouplé au dispositif de retenue supérieur (23) lorsque le pointeau de soupape (20) est actionné de façon à quitter la position de fermeture, et l'agencement d'armature (22) étant conçu et agencé de façon à se désaccoupler de manière mécanique du dispositif de retenue supérieur (23) en raison de son inertie lorsque le pointeau de soupape (20) atteint la position de fermeture ; et
    - un ressort d'armature (46) agencé dans la cavité (18) et accouplé à l'agencement d'armature (22) adjacent de manière axiale à l'agencement d'armature (22), le ressort d'armature (46) étant agencé de façon à fournir une force à l'agencement d'armature (22) qui contribue à l'accouplement de l'armature (22) avec le pointeau de soupape (20) ;
    dans lequel l'agencement d'armature (22) comprend une partie armature (22a) et une partie en saillie (22b), la partie en saillie (22b) faisant saillie de manière axiale vers la partie sortie de fluide (40) ; et
    dans lequel un appareil d'amortissement (50) est agencé dans la cavité (18) adjacent de manière axiale à l'agencement d'armature (22) ;
    l'appareil d'amortissement (50) comprenant une coupelle (52) accouplée de manière fixe au pointeau de soupape (20) ou au corps de soupape (12) et à une majeure partie de la partie en saillie (22b) de l'agencement d'armature (22) ;
    la majeure partie de la partie en saillie (22b) de l'agencement d'armature (22) étant agencée à l'intérieur de la coupelle (52), formant de ce fait un volume (53) à l'intérieur de la coupelle (52) destiné à être rempli avec un fluide.
  2. Ensemble soupape (11) selon la revendication précédente, dans lequel la partie en saillie (22b) est accouplée de manière fixe à la partie armature (22a).
  3. Ensemble soupape (11) selon la revendication 1, dans lequel la partie en saillie (22b) et la partie armature (22a) sont réalisées d'une seule pièce.
  4. Ensemble soupape (11) selon l'une quelconque des revendications précédentes, dans lequel un premier jeu (54) est agencé entre la coupelle (52) et la partie de la partie en saillie (22b) agencée à l'intérieur de la coupelle (52) de façon à laisser passer le fluide.
  5. Ensemble soupape (11) selon l'une quelconque des revendications précédentes, dans lequel un second jeu (55) est agencé entre l'agencement d'armature (22) et le pointeau de soupape (20) de façon à laisser passer le fluide.
  6. Soupape d'injection (10) dotée d'un ensemble soupape (11) selon l'une quelconque des revendications précédentes.
EP11190294.6A 2011-11-23 2011-11-23 Ensemble de soupape pour soupape d'injection et soupape d'injection Not-in-force EP2597296B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11190294.6A EP2597296B1 (fr) 2011-11-23 2011-11-23 Ensemble de soupape pour soupape d'injection et soupape d'injection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11190294.6A EP2597296B1 (fr) 2011-11-23 2011-11-23 Ensemble de soupape pour soupape d'injection et soupape d'injection

Publications (2)

Publication Number Publication Date
EP2597296A1 EP2597296A1 (fr) 2013-05-29
EP2597296B1 true EP2597296B1 (fr) 2014-10-29

Family

ID=45318826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11190294.6A Not-in-force EP2597296B1 (fr) 2011-11-23 2011-11-23 Ensemble de soupape pour soupape d'injection et soupape d'injection

Country Status (1)

Country Link
EP (1) EP2597296B1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015211667A1 (de) * 2015-06-24 2016-12-29 Robert Bosch Gmbh Ventil zum Zumessen eines Fluids
KR102119988B1 (ko) * 2015-10-15 2020-06-17 콘티넨탈 오토모티브 게엠베하 튀어오름 방지 디바이스를 구비한 연료 분사 밸브, 연소 기관 및 차량
EP3184794B1 (fr) 2015-12-21 2018-08-22 Continental Automotive GmbH Ensemble de soupape et soupape d'injection de fluide
EP3464869B1 (fr) * 2016-06-02 2020-07-08 Vitesco Technologies GmbH Ensemble de soupape pour soupape d'injection et soupape d'injection
EP3339627B1 (fr) * 2016-12-23 2019-08-07 Continental Automotive GmbH Ensemble de soupape et soupape d'injection de fluide

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10130205A1 (de) * 2001-06-22 2003-01-02 Bosch Gmbh Robert Brennstoffeinspritzventil
EP1460263B1 (fr) * 2003-03-19 2009-07-15 Continental Automotive GmbH Soupape d'injection avec une aiguille précontrainte par un ressort
JP2006017101A (ja) * 2004-06-02 2006-01-19 Denso Corp 燃料噴射弁
WO2008038396A1 (fr) * 2006-09-25 2008-04-03 Hitachi, Ltd. Soupape d'injection de carburant

Also Published As

Publication number Publication date
EP2597296A1 (fr) 2013-05-29

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