EP1805409A1 - Injecteur de carburant actionne par vanne magnetique, comprenant une butee hydraulique de depassement de course - Google Patents

Injecteur de carburant actionne par vanne magnetique, comprenant une butee hydraulique de depassement de course

Info

Publication number
EP1805409A1
EP1805409A1 EP05801500A EP05801500A EP1805409A1 EP 1805409 A1 EP1805409 A1 EP 1805409A1 EP 05801500 A EP05801500 A EP 05801500A EP 05801500 A EP05801500 A EP 05801500A EP 1805409 A1 EP1805409 A1 EP 1805409A1
Authority
EP
European Patent Office
Prior art keywords
anchor bolt
anchor
solenoid valve
valve according
plate
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.)
Granted
Application number
EP05801500A
Other languages
German (de)
English (en)
Other versions
EP1805409B1 (fr
Inventor
Frieder Buerkle
Ralf Maier
Andreas Rettich
Heiko Seng
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1805409A1 publication Critical patent/EP1805409A1/fr
Application granted granted Critical
Publication of EP1805409B1 publication Critical patent/EP1805409B1/fr
Not-in-force 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
    • 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
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • 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
    • 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
    • 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
    • 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
    • F02M2547/003—Valve inserts containing control chamber and valve piston

Definitions

  • Solenoid valves can be used on fuel injection systems for actuating fuel injectors.
  • the solenoid valves comprise an electromagnet which is introduced into the injector body and which cooperates with an armature group which comprises an anchor bolt and an armature plate.
  • the anchor bolt is designed such that a closing body is received on the latter, which closes or releases a drain of a control chamber actuating the nozzle needle of the fuel injector.
  • annular shoulder can be arranged on the anchor bolt, which is enclosed by a part of the first anchor part and an annular shoulder is also attached to the first anchor part, between which and the annular shoulder of the anchor bolt a damping space is constantly enclosed, which in turn is enclosed by a Leak gap has a connection to ei ⁇ nem surrounding relief space.
  • a magnet group is then screwed together with the adjusting ring dimensioned according to the calculation in the injector body, and then the armature stroke is measured with a screwed or tensioned state.
  • tolerances in the micrometer range are tolerable at most for the armature stroke in order to ensure a reproducible injector behavior. Due to the permitted only slight tolerance deviation, the armature stroke is not always within the tolerance values after a first assembly, as described above.
  • the magnet group In order to then ensure the setting of the armature stroke within the narrow tolerance values, the magnet group must be completely disassembled and the armature stroke must be readjusted by selecting an adjusting ring of a different dimensioning. If necessary, this process must even be repeated several times until an acceptable tolerance compliance of the armature stroke is achieved.
  • the anchor plate 7 can be quickly returned by the emerging from the or the discharge ports 24 fuel back to its original position, wherein the striking of the upper plane of the anchor plate 7 on the executed as a sickle disc stop. 5 with a relatively small pulse.
  • the flow of the Abêtmenge within the discharge throttle chamber 34 is present shortly after the closing of the valve seat 32 by the closing element 13.
  • the relatively small leakage quantities of nozzles and valve guide are permanently available.

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)
EP05801500A 2004-10-20 2005-10-07 Injecteur de carburant actionne par vanne magnetique, comprenant une butee hydraulique de depassement de course Not-in-force EP1805409B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004050992A DE102004050992A1 (de) 2004-10-20 2004-10-20 Magnetventilbetätigter Kraftstoffinjektor mit hydraulischem Überhubanschlag
PCT/EP2005/055108 WO2006042798A1 (fr) 2004-10-20 2005-10-07 Injecteur de carburant actionne par vanne magnetique, comprenant une butee hydraulique de depassement de course

Publications (2)

Publication Number Publication Date
EP1805409A1 true EP1805409A1 (fr) 2007-07-11
EP1805409B1 EP1805409B1 (fr) 2008-02-27

Family

ID=35502958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05801500A Not-in-force EP1805409B1 (fr) 2004-10-20 2005-10-07 Injecteur de carburant actionne par vanne magnetique, comprenant une butee hydraulique de depassement de course

Country Status (5)

Country Link
EP (1) EP1805409B1 (fr)
JP (1) JP4495761B2 (fr)
AT (1) ATE387577T1 (fr)
DE (2) DE102004050992A1 (fr)
WO (1) WO2006042798A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110397771A (zh) * 2019-07-20 2019-11-01 陈叶源 一种使用寿命高的弹簧式安全阀

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006045357A1 (de) * 2006-09-26 2008-04-03 Robert Bosch Gmbh Sicherungsscheibe für ein Magnetventil
DE102007037824A1 (de) * 2007-08-10 2009-02-12 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
DE102008002717A1 (de) * 2008-06-27 2010-01-14 Robert Bosch Gmbh Kraftstoffinjektor mit zweiteiligem Magnetanker
DE602008003425D1 (de) 2008-06-27 2010-12-23 Fiat Ricerche Kraftstoffeinspritzgerät mit symmetrischem Mess-Servoventil für einen Verbrennungsmotor
EP2211046B1 (fr) 2008-12-29 2011-03-02 C.R.F. Società Consortile per Azioni Système d'injection de carburant doté d'une répétabilité et d'une stabilité élevées pour le fonctionnement d'un moteur à combustion interne
CN104100424B (zh) * 2014-07-23 2016-06-29 哈尔滨工程大学 带有电磁阀控制的船用低速机共轨喷油器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3408012A1 (de) * 1984-03-05 1985-09-05 Gerhard Dipl.-Ing. Warren Mich. Mesenich Elektromagnetisches einspritzventil
IT1219397B (it) * 1988-06-23 1990-05-11 Weber Srl Valvola per la dosatura e la polverizzazione di carburante ad azionamento elettromagnetico provvista di doppia serie di fori laterali di ingresso del carburante
DE19650865A1 (de) 1996-12-07 1998-06-10 Bosch Gmbh Robert Magnetventil
IT239878Y1 (it) * 1996-12-23 2001-03-13 Elasis Sistema Ricerca Fiat Perfezionamenti ad una valvola di dosaggio a comando elettromagneticoper un iniettore di combustibile.
DE19843546A1 (de) * 1998-09-23 2000-03-30 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
DE10133450A1 (de) 2001-07-10 2003-01-30 Bosch Gmbh Robert Magnetventil mit Steck-Drehverbindung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006042798A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110397771A (zh) * 2019-07-20 2019-11-01 陈叶源 一种使用寿命高的弹簧式安全阀

Also Published As

Publication number Publication date
JP2008517212A (ja) 2008-05-22
JP4495761B2 (ja) 2010-07-07
EP1805409B1 (fr) 2008-02-27
ATE387577T1 (de) 2008-03-15
DE102004050992A1 (de) 2006-04-27
DE502005003034D1 (de) 2008-04-10
WO2006042798A1 (fr) 2006-04-27

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