EP1213475A3 - Fuel injection valve - Google Patents

Fuel injection valve Download PDF

Info

Publication number
EP1213475A3
EP1213475A3 EP01129476A EP01129476A EP1213475A3 EP 1213475 A3 EP1213475 A3 EP 1213475A3 EP 01129476 A EP01129476 A EP 01129476A EP 01129476 A EP01129476 A EP 01129476A EP 1213475 A3 EP1213475 A3 EP 1213475A3
Authority
EP
European Patent Office
Prior art keywords
valve
central axis
fuel injection
injection valve
valve seat
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Withdrawn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
EP01129476A
Other languages
German (de)
French (fr)
Other versions
EP1213475A2 (en
Inventor
Guenter Dantes
Detlef Nowak
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 EP1213475A2 publication Critical patent/EP1213475A2/en
Publication of EP1213475A3 publication Critical patent/EP1213475A3/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Withdrawn legal-status Critical Current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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/188—Spherical or partly spherical shaped valve member ends
    • 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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • 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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size

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)
  • Fuel-Injection Apparatus (AREA)

Abstract

Ein Brennstoffeinspritzventil für Brennstoffeinspritzanlagen von Brennkraftmaschinen umfaßt einen Ventilsitzkörper (5), in den eine Ventilsitzfläche (6) eingebracht ist, welche mit einem Ventilschließkörper (4), der mit einer Ventilnadel (3) in Wirkverbindung steht, zu einem Dichtsitz zusammenwirkt und eine Abspritzöffnung (7), deren Mittelachse (44) mit der Mittelachse (43) des Brennstoffeinspritzventils (1) einen von Null verschiedenen Winkel einschließt. Die Wirkverbindung zwischen Ventilnadel (3) und Ventilschließkörper (4) ist ein Kugel-Gelenk (45). Der von Null Grad verschiedene Winkel zwischen der Mittelachse (44) der Abspritzöffnung (7) und der Mittelachse (43) des Brennstoffeinspritzventils (1) wird durch Neigung des teilkugelförmigen Ventilsitzkörpers (5) eingestellt.

Figure 00000001
A fuel injection valve for fuel injection systems of internal combustion engines comprises a valve seat body (5), into which a valve seat surface (6) is introduced, which cooperates with a valve closing body (4), which is operatively connected to a valve needle (3), to form a sealing seat and a spray opening ( 7), the central axis (44) of which, with the central axis (43) of the fuel injector (1), encloses an angle which is different from zero. The operative connection between valve needle (3) and valve closing body (4) is a ball joint (45). The angle, different from zero degrees, between the central axis (44) of the spray opening (7) and the central axis (43) of the fuel injector (1) is set by inclining the part-spherical valve seat body (5).
Figure 00000001
EP01129476A 2000-12-11 2001-12-11 Fuel injection valve Withdrawn EP1213475A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10061572 2000-12-11
DE2000161572 DE10061572A1 (en) 2000-12-11 2000-12-11 Fuel injector

Publications (2)

Publication Number Publication Date
EP1213475A2 EP1213475A2 (en) 2002-06-12
EP1213475A3 true EP1213475A3 (en) 2004-01-02

Family

ID=7666627

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01129476A Withdrawn EP1213475A3 (en) 2000-12-11 2001-12-11 Fuel injection valve

Country Status (2)

Country Link
EP (1) EP1213475A3 (en)
DE (1) DE10061572A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005061424A1 (en) * 2005-12-22 2007-07-05 Robert Bosch Gmbh Fuel injection valve for internal combustion engine, has movable actuating part with valve seat body including saw-tooth structure at outer periphery to provide firm connection with valve seat carrier

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4354640A (en) * 1979-10-04 1982-10-19 Robert Bosch Gmbh Electromagnetically actuatable valve
US4597558A (en) * 1984-07-26 1986-07-01 Robert Bosch Gmbh Electromagnetically actuatable valve
US5058549A (en) * 1988-02-26 1991-10-22 Toyota Jidosha Kabushiki Kaisha Fuel swirl generation type fuel injection valve and direct fuel injection type spark ignition internal combustion engine
US5241858A (en) * 1991-12-09 1993-09-07 Siemens Automotive L.P. Dynamic flow calibration of a fuel injector by selective diversion of magnetic flux from the working gap
DE19723953A1 (en) * 1997-06-06 1998-12-10 Bosch Gmbh Robert Fuel injector
DE19815789A1 (en) * 1998-04-08 1999-10-14 Bosch Gmbh Robert Fuel injector

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8807284D0 (en) 1988-03-26 1988-04-27 Bp Chem Int Ltd Chemical process

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4354640A (en) * 1979-10-04 1982-10-19 Robert Bosch Gmbh Electromagnetically actuatable valve
US4597558A (en) * 1984-07-26 1986-07-01 Robert Bosch Gmbh Electromagnetically actuatable valve
US5058549A (en) * 1988-02-26 1991-10-22 Toyota Jidosha Kabushiki Kaisha Fuel swirl generation type fuel injection valve and direct fuel injection type spark ignition internal combustion engine
US5241858A (en) * 1991-12-09 1993-09-07 Siemens Automotive L.P. Dynamic flow calibration of a fuel injector by selective diversion of magnetic flux from the working gap
DE19723953A1 (en) * 1997-06-06 1998-12-10 Bosch Gmbh Robert Fuel injector
DE19815789A1 (en) * 1998-04-08 1999-10-14 Bosch Gmbh Robert Fuel injector

Also Published As

Publication number Publication date
DE10061572A1 (en) 2002-06-27
EP1213475A2 (en) 2002-06-12

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