EP0905371A3 - Electromagnetic injector - Google Patents

Electromagnetic injector Download PDF

Info

Publication number
EP0905371A3
EP0905371A3 EP98117945A EP98117945A EP0905371A3 EP 0905371 A3 EP0905371 A3 EP 0905371A3 EP 98117945 A EP98117945 A EP 98117945A EP 98117945 A EP98117945 A EP 98117945A EP 0905371 A3 EP0905371 A3 EP 0905371A3
Authority
EP
European Patent Office
Prior art keywords
main body
nozzle
movable element
spring
electromagnetic injector
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Withdrawn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
EP98117945A
Other languages
German (de)
French (fr)
Other versions
EP0905371A2 (en
Inventor
Gianluca Barbieri
Massimo Neretti
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.)
Marelli Europe SpA
Original Assignee
Magneti Marelli SpA
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 Magneti Marelli SpA filed Critical Magneti Marelli SpA
Publication of EP0905371A2 publication Critical patent/EP0905371A2/en
Publication of EP0905371A3 publication Critical patent/EP0905371A3/en
Withdrawn legal-status Critical Current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
    • F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
    • 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
    • F02M51/0614—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature
    • 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
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
    • 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
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting

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)
  • Manufacturing & Machinery (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

Method of manufacturing an electromagnetic injector (1), characterized in that it comprises the following stages:
  • inserting a movable element (11) inside a main body (2) and a nozzle (3) provided with a fuel flow distributor (14);
  • pushing the nozzle (3) and the movable element (11) along an axis of longitudinal symmetry (C) against a shoulder (7c) inside the main body (2) so as to pre-tension the spring (9);
  • checking, by means of suitable devices, whether the value of the travel of one end of the stem (12) of the movable element (11) complies with the specifications;
  • welding the nozzle (3) onto the main body (2) if the preceding check is positive;
  • finely calibrating the load on the spring (9) by means of a pusher inserted in the main body (2);
  • clamping and locking the calibrating bush (8) inside the main body (2) and finally;
  • mounting a coil (15) on the main body (2).
EP98117945A 1997-09-24 1998-09-22 Electromagnetic injector Withdrawn EP0905371A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97BO000575A IT1295192B1 (en) 1997-09-24 1997-09-24 ELECTROMAGNETIC INJECTOR.
ITBO970575 1997-09-24

Publications (2)

Publication Number Publication Date
EP0905371A2 EP0905371A2 (en) 1999-03-31
EP0905371A3 true EP0905371A3 (en) 1999-12-22

Family

ID=11342549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117945A Withdrawn EP0905371A3 (en) 1997-09-24 1998-09-22 Electromagnetic injector

Country Status (2)

Country Link
EP (1) EP0905371A3 (en)
IT (1) IT1295192B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1469191B1 (en) * 2003-04-14 2009-09-16 Continental Automotive GmbH Valve assembly
DE602006012012D1 (en) * 2006-04-11 2010-03-18 Fiat Ricerche Fuel injector for internal combustion engines with adjustable metering valve
EP2375051A1 (en) * 2010-04-09 2011-10-12 Continental Automotive GmbH Valve assembly for an injection valve and injection valve

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4646975A (en) * 1984-12-06 1987-03-03 Vdo Adolf Schindling Ag Electromagnetically actuatable fuel-injection valve
EP0388494A1 (en) * 1989-03-22 1990-09-26 Siemens Aktiengesellschaft Method to adjust the load of an elastic means in an electromagnetically operated injector
DE4018256A1 (en) * 1990-06-07 1991-12-12 Bosch Gmbh Robert ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE
JPH05288130A (en) * 1992-04-08 1993-11-02 Nippondenso Co Ltd Electromagnetic fluid control valve
US5289627A (en) * 1992-12-18 1994-03-01 Chrysler Corporation Fuel injector assembly and calibration method
US5613640A (en) * 1994-09-09 1997-03-25 Zexel Corporation Fuel injection valve
DE19547406A1 (en) * 1995-12-19 1997-06-26 Bosch Gmbh Robert Fuel injector

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4646975A (en) * 1984-12-06 1987-03-03 Vdo Adolf Schindling Ag Electromagnetically actuatable fuel-injection valve
EP0388494A1 (en) * 1989-03-22 1990-09-26 Siemens Aktiengesellschaft Method to adjust the load of an elastic means in an electromagnetically operated injector
DE4018256A1 (en) * 1990-06-07 1991-12-12 Bosch Gmbh Robert ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE
JPH05288130A (en) * 1992-04-08 1993-11-02 Nippondenso Co Ltd Electromagnetic fluid control valve
US5289627A (en) * 1992-12-18 1994-03-01 Chrysler Corporation Fuel injector assembly and calibration method
US5613640A (en) * 1994-09-09 1997-03-25 Zexel Corporation Fuel injection valve
DE19547406A1 (en) * 1995-12-19 1997-06-26 Bosch Gmbh Robert Fuel injector

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 076 (M - 1556) 8 February 1994 (1994-02-08) *

Also Published As

Publication number Publication date
EP0905371A2 (en) 1999-03-31
ITBO970575A0 (en) 1997-09-24
IT1295192B1 (en) 1999-05-04
ITBO970575A1 (en) 1999-03-24

Similar Documents

Publication Publication Date Title
DE3427526C2 (en)
US4830286A (en) Electromagnetically actuatable valve
US4991557A (en) Self-attaching electromagnetic fuel injector
EP1751420B1 (en) Fuel injection valve
US6405427B2 (en) Method of making a solenoid actuated fuel injector
US20090184184A1 (en) Fuel Injector and Method for Its Mounting
CN1078667C (en) Fuel injection valve
WO2000042315A1 (en) High pressure injector clip
WO1999032785A8 (en) Ball valve fuel injector
EP0865573A1 (en) Injection valve stem
WO1991011604A3 (en) Electromagnetically operated valve
EP1038730A3 (en) Vehicle exterior mirror
EP1825135B1 (en) Injection valve
EP0987479A3 (en) Fuel injection valve and method of manufacturing the fuel injection valve
US20090179166A1 (en) Electromagnetically Operatable Valve
DE102004021117A1 (en) Fuel injector
US6454191B1 (en) Electromagnetic fuel injector dampening device
WO2006001181A8 (en) Method of producing electromagnetic fuel injection valve
EP0905371A3 (en) Electromagnetic injector
EP1170501A3 (en) Electromagnetic fuel injection valve
EP1188975A3 (en) Poppet valve and a method of manufacturing the same
EP1167750A3 (en) Hollow oversized telescopic needle with armature, for a fuel injector
US7458363B2 (en) Locking claw
DE7731335U1 (en) ELECTROMAGNETIC ACTUATOR
US6648249B1 (en) Apparatus and method for setting injector lift

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR GB SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RIN1 Information on inventor provided before grant (corrected)

Inventor name: NERETTI, MASSIMO

Inventor name: BARBIERI, GIANLUCA

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20000110

AKX Designation fees paid

Free format text: DE ES FR GB SE

17Q First examination report despatched

Effective date: 20021014

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20040205