DE502005003034D1 - SOLENOID VALVE-ASSEMBLED FUEL INJECTOR WITH HYDRAULIC TRANSMISSION STOP - Google Patents

SOLENOID VALVE-ASSEMBLED FUEL INJECTOR WITH HYDRAULIC TRANSMISSION STOP

Info

Publication number
DE502005003034D1
DE502005003034D1 DE502005003034T DE502005003034T DE502005003034D1 DE 502005003034 D1 DE502005003034 D1 DE 502005003034D1 DE 502005003034 T DE502005003034 T DE 502005003034T DE 502005003034 T DE502005003034 T DE 502005003034T DE 502005003034 D1 DE502005003034 D1 DE 502005003034D1
Authority
DE
Germany
Prior art keywords
fuel injector
solenoid valve
hydraulic transmission
armature plate
transmission stop
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
DE502005003034T
Other languages
German (de)
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 DE502005003034D1 publication Critical patent/DE502005003034D1/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
    • 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

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

The invention relates to an electromagnetic valve for actuating a fuel injector by means of a closing element (13) via which a discharge throttle (14) of a control chamber (15) can be released or closed. An armature plate (7) is moveably mounted on an armature pin (6) and secured by a stop (5). A magnet (2) is arranged opposite the armature plate (7) and at least one overflow channel (26) is provided inside the armature plate (7), said overflow channel connecting hydraulically the discharge throttle chamber (34) to the control chamber (35), thereby forming a hydraulic cushion underneath the armature plate (7).
DE502005003034T 2004-10-20 2005-10-07 SOLENOID VALVE-ASSEMBLED FUEL INJECTOR WITH HYDRAULIC TRANSMISSION STOP Active DE502005003034D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004050992A DE102004050992A1 (en) 2004-10-20 2004-10-20 Solenoid-operated fuel injector with hydraulic over-stroke stop
PCT/EP2005/055108 WO2006042798A1 (en) 2004-10-20 2005-10-07 Fuel injector actuated by an electromagnetic valve, with a hydraulic overtravel stop

Publications (1)

Publication Number Publication Date
DE502005003034D1 true DE502005003034D1 (en) 2008-04-10

Family

ID=35502958

Family Applications (2)

Application Number Title Priority Date Filing Date
DE102004050992A Withdrawn DE102004050992A1 (en) 2004-10-20 2004-10-20 Solenoid-operated fuel injector with hydraulic over-stroke stop
DE502005003034T Active DE502005003034D1 (en) 2004-10-20 2005-10-07 SOLENOID VALVE-ASSEMBLED FUEL INJECTOR WITH HYDRAULIC TRANSMISSION STOP

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE102004050992A Withdrawn DE102004050992A1 (en) 2004-10-20 2004-10-20 Solenoid-operated fuel injector with hydraulic over-stroke stop

Country Status (5)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006045357A1 (en) * 2006-09-26 2008-04-03 Robert Bosch Gmbh Lock washer for a solenoid valve
DE102007037824A1 (en) * 2007-08-10 2009-02-12 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
ATE487875T1 (en) * 2008-06-27 2010-11-15 Fiat Ricerche FUEL INJECTION DEVICE WITH SYMMETRIC MEASUREMENT SERVO VALVE FOR AN INTERNAL COMBUSTION ENGINE
DE102008002717A1 (en) * 2008-06-27 2010-01-14 Robert Bosch Gmbh Fuel injector with two-part magnet armature
ATE500411T1 (en) * 2008-12-29 2011-03-15 Fiat Ricerche FUEL INJECTION SYSTEM WITH HIGH OPERATIONAL REPEATABILITY AND STABILITY FOR AN INTERNAL COMBUSTION ENGINE
CN104100424B (en) * 2014-07-23 2016-06-29 哈尔滨工程大学 With the marine low-speed machine common-rail injector that electromagnetic valve controls
CN110397771B (en) * 2019-07-20 2020-12-01 防城港澳加粮油工业有限公司 Spring safety valve that life is high

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3408012A1 (en) * 1984-03-05 1985-09-05 Gerhard Dipl.-Ing. Warren Mich. Mesenich ELECTROMAGNETIC INJECTION VALVE
IT1219397B (en) * 1988-06-23 1990-05-11 Weber Srl VALVE FOR DOSING AND PULVERIZING ELECTROMAGNETICALLY OPERATED FUEL PROVIDED WITH DOUBLE SERIES OF SIDE HOLES FOR FUEL INLET
DE19650865A1 (en) 1996-12-07 1998-06-10 Bosch Gmbh Robert magnetic valve
IT239878Y1 (en) * 1996-12-23 2001-03-13 Elasis Sistema Ricerca Fiat IMPROVEMENTS TO AN ELECTROMAGNETIC CONTROL DOSING VALVE FOR A FUEL INJECTOR.
DE19843546A1 (en) * 1998-09-23 2000-03-30 Bosch Gmbh Robert Fuel injection device for internal combustion engines
DE10133450A1 (en) 2001-07-10 2003-01-30 Bosch Gmbh Robert Solenoid valve with plug-in rotary connection

Also Published As

Publication number Publication date
DE102004050992A1 (en) 2006-04-27
WO2006042798A1 (en) 2006-04-27
EP1805409A1 (en) 2007-07-11
EP1805409B1 (en) 2008-02-27
JP2008517212A (en) 2008-05-22
ATE387577T1 (en) 2008-03-15
JP4495761B2 (en) 2010-07-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition