EP0450654A1 - Soupape électromagnétique de dosage et de pulvérisation de combustible pour dispositif d'alimentation en combustible d'un moteur à combustion interne - Google Patents

Soupape électromagnétique de dosage et de pulvérisation de combustible pour dispositif d'alimentation en combustible d'un moteur à combustion interne Download PDF

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Publication number
EP0450654A1
EP0450654A1 EP91105441A EP91105441A EP0450654A1 EP 0450654 A1 EP0450654 A1 EP 0450654A1 EP 91105441 A EP91105441 A EP 91105441A EP 91105441 A EP91105441 A EP 91105441A EP 0450654 A1 EP0450654 A1 EP 0450654A1
Authority
EP
European Patent Office
Prior art keywords
plunger
nozzle
rod
valve
fact
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Withdrawn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
EP91105441A
Other languages
German (de)
English (en)
Inventor
Marcello Cristiani
Massimo Lolli
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.)
Weber SRL
Original Assignee
Weber SRL
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 Weber SRL filed Critical Weber SRL
Publication of EP0450654A1 publication Critical patent/EP0450654A1/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • 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

Definitions

  • plunger 7 On reaching the top limit position, plunger 7 is arrested by pin 37 engaging the end of rod 35, and a residual axial clearance (air gap), depending on the thickness of washer 27, is left between anchor 9 and core 2.
  • rings 17i and 17s may be formed as shown, for example, in Fig.4.
  • rings 17i and 17s provide for sufficient axial force for securing plunger 7 in the closed position shown in Fig.1, in the same way as helical spring 36.
  • an assembly consisting of nozzle 4, bush 19, spacer 21 and lock coupling 22, upon completion of which rod 12 is perfectly coaxial with nozzle 4.
  • bush 19, spacer 21, rings 17i and 17s and rod 12 are fitted inside hole 6 on nozzle 4, in the exact finished valve position.
  • a centering tool of any type (not shown) is then used for securing the top end of rod 12 in such a position that the axis of rod 12 coincides with that of nozzle 4.
  • lock coupling 22 may be inserted, with a given radial pressure, inside hole 6, so as to contact upper ring 17s and exert a given axial pressure on ring 17s and the members housed inside hole 6 of nozzle 4.
  • rings 17i and 17s provide for effectively improving the closing action of plunger 7, thus enabling the use of a small-size spring 36.
  • the elastic closing force of plunger 7 being, in this case, provided partly by rings 17i and 17s and partly by spring 36, preload adjustment of spring 36 is simplified by enabling spring 36 to be employed solely for fine adjustment purposes.

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)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Catching Or Destruction (AREA)
  • Fuel-Injection Apparatus (AREA)
EP91105441A 1990-04-06 1991-04-05 Soupape électromagnétique de dosage et de pulvérisation de combustible pour dispositif d'alimentation en combustible d'un moteur à combustion interne Withdrawn EP0450654A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT6726590 1990-04-06
IT67265A IT1240180B (it) 1990-04-06 1990-04-06 Valvola dosatrice e polverizzatrice di carburante ad azionamento elettromagnetico per un dispositivo di alimentazione di un motore endotermico

Publications (1)

Publication Number Publication Date
EP0450654A1 true EP0450654A1 (fr) 1991-10-09

Family

ID=11300978

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91105441A Withdrawn EP0450654A1 (fr) 1990-04-06 1991-04-05 Soupape électromagnétique de dosage et de pulvérisation de combustible pour dispositif d'alimentation en combustible d'un moteur à combustion interne

Country Status (2)

Country Link
EP (1) EP0450654A1 (fr)
IT (1) IT1240180B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994000685A1 (fr) * 1992-06-26 1994-01-06 Siemens Automotive Corporation Boite de palier pour injecteur de carburant
WO1997005376A1 (fr) * 1995-07-28 1997-02-13 Siemens Automotive Corporation Soupape d'injection disposant d'un diaphragme de guidage, et son procede d'assemblage

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2356577A (en) * 1940-02-12 1944-08-22 Fuscaldo Ottavio Electromagnetic control for injectors of internal-combustion engines
GB1019013A (en) * 1961-07-12 1966-02-02 Roosa Vernon D An internal combustion engine fuel injection nozzle
GB1085093A (en) * 1964-09-20 1967-09-27 Bryce Berger Ltd Liquid fuel injection nozzle units for internal combustion engines
DE1263396B (de) * 1966-04-20 1968-03-14 Philips Patentverwaltung Magnetventil fuer eine Brennstoffeinspritzanlage fuer Brennkraftmaschinen
FR1553610A (fr) * 1967-03-29 1969-01-10
DE1601395A1 (de) * 1968-01-30 1970-10-29 Bosch Gmbh Robert Elektromagnetisch betaetigtes Einspritzventil
DE3120160A1 (de) * 1981-05-21 1982-12-09 Robert Bosch Gmbh, 7000 Stuttgart Elektromagnetisch betaetigbares ventil, insbesondere kraftstoffeinspritzventil fuer kraftstoffeinspritzan lagen
GB2192427A (en) * 1986-07-12 1988-01-13 Pierburg Gmbh & Co Kg Stroke and spring force adjustment in an electromagnetic fuel-injection valve
EP0312708A1 (fr) * 1987-10-17 1989-04-26 Pierburg Gmbh Soupape d'injection électromagnétique pour moteurs à combustion interne et méthode de sa production
DE3905992A1 (de) * 1989-02-25 1989-09-21 Mesenich Gerhard Elektromagnetisches hochdruckeinspritzventil

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2356577A (en) * 1940-02-12 1944-08-22 Fuscaldo Ottavio Electromagnetic control for injectors of internal-combustion engines
GB1019013A (en) * 1961-07-12 1966-02-02 Roosa Vernon D An internal combustion engine fuel injection nozzle
GB1085093A (en) * 1964-09-20 1967-09-27 Bryce Berger Ltd Liquid fuel injection nozzle units for internal combustion engines
DE1263396B (de) * 1966-04-20 1968-03-14 Philips Patentverwaltung Magnetventil fuer eine Brennstoffeinspritzanlage fuer Brennkraftmaschinen
FR1553610A (fr) * 1967-03-29 1969-01-10
DE1601395A1 (de) * 1968-01-30 1970-10-29 Bosch Gmbh Robert Elektromagnetisch betaetigtes Einspritzventil
DE3120160A1 (de) * 1981-05-21 1982-12-09 Robert Bosch Gmbh, 7000 Stuttgart Elektromagnetisch betaetigbares ventil, insbesondere kraftstoffeinspritzventil fuer kraftstoffeinspritzan lagen
GB2192427A (en) * 1986-07-12 1988-01-13 Pierburg Gmbh & Co Kg Stroke and spring force adjustment in an electromagnetic fuel-injection valve
EP0312708A1 (fr) * 1987-10-17 1989-04-26 Pierburg Gmbh Soupape d'injection électromagnétique pour moteurs à combustion interne et méthode de sa production
DE3905992A1 (de) * 1989-02-25 1989-09-21 Mesenich Gerhard Elektromagnetisches hochdruckeinspritzventil

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994000685A1 (fr) * 1992-06-26 1994-01-06 Siemens Automotive Corporation Boite de palier pour injecteur de carburant
KR100329154B1 (ko) * 1992-06-26 2002-11-23 지멘스 오토모티브 코포레이션 연료분사기베어링카트리지
WO1997005376A1 (fr) * 1995-07-28 1997-02-13 Siemens Automotive Corporation Soupape d'injection disposant d'un diaphragme de guidage, et son procede d'assemblage

Also Published As

Publication number Publication date
IT1240180B (it) 1993-11-27
IT9067265A1 (it) 1991-10-06
IT9067265A0 (it) 1990-04-06

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