IT1261156B - Elettromagnete di comando di una valvola di dosaggio per un iniettore di combustibile - Google Patents

Elettromagnete di comando di una valvola di dosaggio per un iniettore di combustibile

Info

Publication number
IT1261156B
IT1261156B ITTO931020A ITTO931020A IT1261156B IT 1261156 B IT1261156 B IT 1261156B IT TO931020 A ITTO931020 A IT TO931020A IT TO931020 A ITTO931020 A IT TO931020A IT 1261156 B IT1261156 B IT 1261156B
Authority
IT
Italy
Prior art keywords
core
dosing valve
fuel injector
control electromagnet
coil
Prior art date
Application number
ITTO931020A
Other languages
English (en)
Inventor
Mario Ricco
Giovanni Bruni
Original Assignee
Elasis Sistema Ricerca Fiat
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 Elasis Sistema Ricerca Fiat filed Critical Elasis Sistema Ricerca Fiat
Priority to ITTO931020A priority Critical patent/IT1261156B/it
Publication of ITTO931020A0 publication Critical patent/ITTO931020A0/it
Priority to JP32426394A priority patent/JP3841457B2/ja
Priority to US08/365,587 priority patent/US5608368A/en
Priority to DE69417866T priority patent/DE69417866T2/de
Priority to EP94120827A priority patent/EP0665374B1/en
Priority to ES94120827T priority patent/ES2131627T3/es
Publication of ITTO931020A1 publication Critical patent/ITTO931020A1/it
Application granted granted Critical
Publication of IT1261156B publication Critical patent/IT1261156B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1638—Armatures not entering the winding
    • 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
    • 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
    • F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
    • F02M63/0019—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the arrangement of electromagnets or fixed armatures
    • 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
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
    • F02M63/0036—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat with spherical or partly spherical shaped valve member ends
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/08—Cores, Yokes, or armatures made from powder
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/13—Electromagnets; Actuators including electromagnets with armatures characterised by pulling-force characteristics
    • 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
    • F02M2200/90—Selection of particular materials
    • F02M2200/9092—Sintered materials
    • 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)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electromagnets (AREA)
  • Magnetic Treatment Devices (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

La valvola di dosaggio viene comandata da un elettromagnete (42) avente un nucleo fisso (46) una bobina (47) ed un'ancora (43). Il nucleo (46) è formato mediante stampaggio di una miscela di polvere di materiale ferroso e di un legante epossidico, e successiva sinterizzazione. Il nucleo (46) presenta una bassa isteresi magnetica e basse correnti parassite, per cui a parità di correnti di eccitazione si ottiene una forza magnetica maggiore ed in tempi più brevi. A parità di forza magnetica o di frequenza massima di azionamento il nucleo (46) e/o la bobina (47) possono assumere dimensioni minori.(Figura 1).
ITTO931020A 1993-12-30 1993-12-30 Elettromagnete di comando di una valvola di dosaggio per un iniettore di combustibile IT1261156B (it)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ITTO931020A IT1261156B (it) 1993-12-30 1993-12-30 Elettromagnete di comando di una valvola di dosaggio per un iniettore di combustibile
JP32426394A JP3841457B2 (ja) 1993-12-30 1994-12-27 燃料インジェクタの計量バルブ制御用電磁石
US08/365,587 US5608368A (en) 1993-12-30 1994-12-28 Electromagnet for controlling the metering valve of a fuel injector
DE69417866T DE69417866T2 (de) 1993-12-30 1994-12-28 Elektromagnet zur Steuern des Dosierventils eines Kraftstoffeinspritzventils
EP94120827A EP0665374B1 (en) 1993-12-30 1994-12-28 Electromagnet for controlling the metering valve of a fuel injector
ES94120827T ES2131627T3 (es) 1993-12-30 1994-12-28 Electroiman para controlar la valvula de dosificado de un inyector de combustible.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO931020A IT1261156B (it) 1993-12-30 1993-12-30 Elettromagnete di comando di una valvola di dosaggio per un iniettore di combustibile

Publications (3)

Publication Number Publication Date
ITTO931020A0 ITTO931020A0 (it) 1993-12-30
ITTO931020A1 ITTO931020A1 (it) 1995-06-30
IT1261156B true IT1261156B (it) 1996-05-09

Family

ID=11411991

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO931020A IT1261156B (it) 1993-12-30 1993-12-30 Elettromagnete di comando di una valvola di dosaggio per un iniettore di combustibile

Country Status (6)

Country Link
US (1) US5608368A (it)
EP (1) EP0665374B1 (it)
JP (1) JP3841457B2 (it)
DE (1) DE69417866T2 (it)
ES (1) ES2131627T3 (it)
IT (1) IT1261156B (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19639117A1 (de) * 1996-09-24 1998-03-26 Bosch Gmbh Robert Brennstoffeinspritzventil
GB9625000D0 (en) * 1996-11-30 1997-01-15 Lucas Ind Plc Electromagnetic actuator
US5782411A (en) * 1996-12-23 1998-07-21 Diesel Technology Company Solenoid stator assembly for an electromechanically actuated fuel injector
US6155503A (en) * 1998-05-26 2000-12-05 Cummins Engine Company, Inc. Solenoid actuator assembly
DE10039039A1 (de) * 2000-08-10 2002-02-21 Bosch Gmbh Robert Magnetventil zur Steuerung eines Einspritzventils für Brennkraftmaschinen und Elektromagnet dafür
ITTO20010814A1 (it) * 2001-08-14 2003-02-14 Fiat Ricerche Iniettore di combustibile per un motore endotermico e relativo metododi fabbricazione.
JP2005139943A (ja) * 2003-11-05 2005-06-02 Mitsubishi Materials Corp 電磁石用コア及びその製造方法
DE102004042592A1 (de) * 2004-07-26 2006-03-23 Robert Bosch Gmbh Brennstoffeinspritzventil
US20060131448A1 (en) * 2004-12-13 2006-06-22 Canepa-Anson Thomas W Actuator arrangement and fuel injector incorporating an actuator arrangement
JP5212699B2 (ja) * 2008-03-21 2013-06-19 横河電機株式会社 電空変換モジュールとこの電空変換モジュールを備えたバルブポジショナ
EP2391841A1 (en) * 2009-01-28 2011-12-07 Borgwarner Inc. Solenoid actuated hydraulic valve for use in an automatic transmission
DE102010055209A1 (de) * 2010-12-20 2012-06-21 Svm Schultz Verwaltungs-Gmbh & Co. Kg Elektromagnet mit Tubus
JP6187563B2 (ja) * 2015-09-28 2017-08-30 株式会社デンソー 燃料噴射弁

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232283A (en) * 1979-03-27 1980-11-04 Rca Corporation Electron beam moving apparatus for a color cathode ray tube
US4601765A (en) * 1983-05-05 1986-07-22 General Electric Company Powdered iron core magnetic devices
US5160447A (en) * 1988-02-29 1992-11-03 Kabushiki Kaisha Sankyo Seiki Seisakusho Compressed powder magnetic core and method for fabricating same
JPH04144103A (ja) * 1990-10-04 1992-05-18 Hitachi Metals Ltd 希土類―鉄―硼素系永久磁石合金粉末の製造方法
IT220662Z2 (it) * 1990-10-31 1993-10-08 Elasis Sistema Ricerca Fita Nel Mezzogiorno Soc.Consortile P.A. Perfezionamenti alla valvola pilota e alla relativa ancora di comando odi un iniettore elettromagnetico per sistemi di iniezione del combustibile di motori a combustione interna
GB9207139D0 (en) * 1992-04-01 1992-05-13 Brico Eng Sintered materials

Also Published As

Publication number Publication date
ES2131627T3 (es) 1999-08-01
US5608368A (en) 1997-03-04
ITTO931020A0 (it) 1993-12-30
DE69417866D1 (de) 1999-05-20
JP3841457B2 (ja) 2006-11-01
DE69417866T2 (de) 1999-11-25
JPH07310621A (ja) 1995-11-28
ITTO931020A1 (it) 1995-06-30
EP0665374B1 (en) 1999-04-14
EP0665374A1 (en) 1995-08-02

Similar Documents

Publication Publication Date Title
IT1261156B (it) Elettromagnete di comando di una valvola di dosaggio per un iniettore di combustibile
DE69613794T2 (de) Gemischter Magnetkern
ES2108147T3 (es) Articulos ceramicos y metodos para preparar articulos ceramicos y para sinterizacion.
JPS647503A (en) Permanent magnet with high thermal stability
CA2234283A1 (en) Method of determining magnetic force of electromagnetic coil for opening/closing air-fuel mixture valve
DE3477076D1 (en) Magnetic head
EP0380693A4 (en) Plunger type electromagnet
DE69022751D1 (de) Magnetkerne aus Eisen-Silizium-Legierungspulver und Herstellungsverfahren.
ES2025925A6 (es) Valvula magnetica con armadura del iman de carrera corta.
ATE114866T1 (de) Eine neue kategorie magnetischer materialien, deren herstellung und anwendung.
GB1055490A (en) Electro-magnet with plunger armature
US5071267A (en) Actuation magnet for a printing stylus of a matrix printer
KR900010034A (ko) 철손이 낮고 자속밀도가 높은 극박전자강대 및 그것의 제조방법
WO1999035656A3 (en) Magnet assembly with reciprocating core member and associated method of operation
JPS6448403A (en) Rare earth-iron-boron magnet powder and manufacture thereof
KR920022218A (ko) 자기 기록 매체
JPS6467713A (en) Magnetic recording medium
Elie Soft Magnetic Alloys
Pacher et al. Sintered Permanent Magnetic(-Material) and a Process for Making it
JPS5630706A (en) Method and device for formation of eare earth cobalt magnet in magnetic field
HU9200403D0 (en) Syntered constant magnetic material and process for its production
JPS57192629A (en) Electromagnetic coupler
KR980001963A (ko) 고주파 저손실을 갖는 Mn-Zn 페라이트 코아의 제조 방법
Senn et al. Hard Magnetic Materials
JPS57159955A (en) Fuel injection valve

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19981221