EP2336542A3 - Fuel injector valve - Google Patents

Fuel injector valve Download PDF

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Publication number
EP2336542A3
EP2336542A3 EP10188702A EP10188702A EP2336542A3 EP 2336542 A3 EP2336542 A3 EP 2336542A3 EP 10188702 A EP10188702 A EP 10188702A EP 10188702 A EP10188702 A EP 10188702A EP 2336542 A3 EP2336542 A3 EP 2336542A3
Authority
EP
European Patent Office
Prior art keywords
control valve
valve body
sealing sleeve
fuel injector
fuel injection
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Withdrawn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
EP10188702A
Other languages
German (de)
French (fr)
Other versions
EP2336542A2 (en
Inventor
Dietmar Uhlmann
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 EP2336542A2 publication Critical patent/EP2336542A2/en
Publication of EP2336542A3 publication Critical patent/EP2336542A3/en
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • 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
    • F02M61/1886—Details of valve seats not covered by groups F02M61/1866 - F02M61/188
    • 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
    • F02M63/0045—Three-way valves

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

Ein Brennstoffeinspritzventil (1), das insbesondere als Injektor für Brennstoffeinspritzanlagen von luftverdichtenden, selbstzündenden Brennkraftmaschinen dient, umfasst ein Gehäuseteil (3), einen Steuerventilkörper (11), der in einem Steuerventilraum (9) des Gehäuseteils (3) angeordnet ist, und eine Dichthülse (20), die an dem Steuerventilkörper (11) angeordnet ist. Dabei wirkt die Dichthülse (20) mit einer Ventilsitzfläche (11) zu einem Dichtsitz (22) zusammen. Ferner weist der Steuerventilkörper ein Außengewinde (27) auf. Und die Dichthülse (20) weist ein Innengewinde (28) auf. Hierbei steht das Außengewinde (27) des Steuerventilkörpers (11) mit dem Innengewinde (28) der Dichthülse (20) in einem Eingriff. Hierdurch ist ein Leckagepfad zwischen dem Steuerventilkörper (11) und der Dichthülse (20) verlängert.

Figure imgaf001
A fuel injection valve (1), which serves in particular as an injector for fuel injection systems of air-compressing, self-igniting internal combustion engines, comprises a housing part (3), a control valve body (11) which is arranged in a control valve chamber (9) of the housing part (3), and a sealing sleeve (20) disposed on the control valve body (11). The sealing sleeve (20) cooperates with a valve seat surface (11) to form a sealing seat (22). Furthermore, the control valve body has an external thread (27). And the sealing sleeve (20) has an internal thread (28). Here, the external thread (27) of the control valve body (11) with the internal thread (28) of the sealing sleeve (20) in engagement. As a result, a leakage path between the control valve body (11) and the sealing sleeve (20) is extended.
Figure imgaf001
EP10188702A 2009-12-21 2010-10-25 Fuel injector valve Withdrawn EP2336542A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910055052 DE102009055052A1 (en) 2009-12-21 2009-12-21 Fuel injector

Publications (2)

Publication Number Publication Date
EP2336542A2 EP2336542A2 (en) 2011-06-22
EP2336542A3 true EP2336542A3 (en) 2013-01-16

Family

ID=43706389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10188702A Withdrawn EP2336542A3 (en) 2009-12-21 2010-10-25 Fuel injector valve

Country Status (2)

Country Link
EP (1) EP2336542A3 (en)
DE (1) DE102009055052A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2433691A1 (en) * 1974-07-12 1976-01-29 Int Harvester Co Needle valve for fuel injection in combustion engine - with opening of very large section and rapidly adjustable fuel throughput for optimum jet preparation
GB2170269A (en) * 1985-01-26 1986-07-30 Daimler Benz Ag I.c. engine fuel injection valve
DE19754112A1 (en) * 1996-12-06 1998-06-10 Hyundai Motor Co Ltd Automotive fuel injection system for diesel engines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004061800A1 (en) 2004-12-22 2006-07-06 Robert Bosch Gmbh Injector of a fuel injection system of an internal combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2433691A1 (en) * 1974-07-12 1976-01-29 Int Harvester Co Needle valve for fuel injection in combustion engine - with opening of very large section and rapidly adjustable fuel throughput for optimum jet preparation
GB2170269A (en) * 1985-01-26 1986-07-30 Daimler Benz Ag I.c. engine fuel injection valve
DE19754112A1 (en) * 1996-12-06 1998-06-10 Hyundai Motor Co Ltd Automotive fuel injection system for diesel engines

Also Published As

Publication number Publication date
EP2336542A2 (en) 2011-06-22
DE102009055052A1 (en) 2011-06-22

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