EP1923564A3 - Fuel injector - Google Patents

Fuel injector Download PDF

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Publication number
EP1923564A3
EP1923564A3 EP07117041A EP07117041A EP1923564A3 EP 1923564 A3 EP1923564 A3 EP 1923564A3 EP 07117041 A EP07117041 A EP 07117041A EP 07117041 A EP07117041 A EP 07117041A EP 1923564 A3 EP1923564 A3 EP 1923564A3
Authority
EP
European Patent Office
Prior art keywords
control valve
valve device
pressure
fuel injector
armature space
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Withdrawn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
EP07117041A
Other languages
German (de)
French (fr)
Other versions
EP1923564A2 (en
Inventor
Hans-Christoph Magel
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 EP1923564A2 publication Critical patent/EP1923564A2/en
Publication of EP1923564A3 publication Critical patent/EP1923564A3/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Withdrawn legal-status Critical Current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
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/002—Arrangement of leakage or drain conduits in or from injectors
    • 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
    • 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
    • F02M2547/001—Control chambers formed by movable sleeves

Abstract

Die Erfindung betrifft einen Kraftstoffinjektor mit einem Injektorgehäuse (6), das einen Druckraum (15) umfasst, aus dem mit Hilfe einer Steuerventileinrichtung (12) mit Hochdruck beaufschlagter Kraftstoff in einen Brennraum einer Brennkraftmaschine eingespritzt wird, wobei die Steuerventileinrichtung (12;82) einen Steuerventilanker (44) umfasst, der in einem Ankerraum (30) angeordnet ist, der mit einem Rücklauf (40) in Verbindung steht, der mit Niederdruck beaufschlagt ist.The invention relates to a fuel injector having an injector housing (6) which comprises a pressure chamber (15) from which high pressure fuel is injected into a combustion chamber of an internal combustion engine by means of a control valve device (12), the control valve device (12; Control valve anchor (44) which is arranged in an armature space (30), which communicates with a return line (40) which is acted upon by low pressure.

Um das Schaltverhalten der Steuerventileinrichtung zu verbessern, ist zwischen dem Ankerraum (30) und dem Rücklauf (40) eine Druckhalteventileinrichtung (52) vorgesehen.

Figure imgaf001
In order to improve the switching behavior of the control valve device, a pressure-retaining valve device (52) is provided between the armature space (30) and the return (40).
Figure imgaf001
EP07117041A 2006-11-16 2007-09-24 Fuel injector Withdrawn EP1923564A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610054063 DE102006054063A1 (en) 2006-11-16 2006-11-16 fuel injector

Publications (2)

Publication Number Publication Date
EP1923564A2 EP1923564A2 (en) 2008-05-21
EP1923564A3 true EP1923564A3 (en) 2009-06-17

Family

ID=39009633

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07117041A Withdrawn EP1923564A3 (en) 2006-11-16 2007-09-24 Fuel injector

Country Status (2)

Country Link
EP (1) EP1923564A3 (en)
DE (1) DE102006054063A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008002528A1 (en) * 2008-06-19 2009-12-24 Robert Bosch Gmbh Fuel injector
DE102009003233A1 (en) * 2009-05-19 2010-11-25 Robert Bosch Gmbh Bayonet magnet group
EP2604848B1 (en) * 2011-12-14 2015-04-15 Delphi International Operations Luxembourg S.à r.l. Fuel injector
WO2014067847A1 (en) * 2012-11-05 2014-05-08 Delphi International Operations Luxembourg S.À.R.L. 3-way valve assembly
GB2553140B (en) * 2016-08-25 2020-04-01 Delphi Tech Ip Ltd Control valve assembly of a fuel injector
CN107917030B (en) * 2017-10-09 2020-04-07 中国第一汽车股份有限公司 Control valve of common rail oil injector
SE545024C2 (en) * 2019-10-01 2023-02-28 Scania Cv Ab Fuel injector arrangement for an internal combustion engine and method for operating said arrangement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5803429A (en) * 1995-02-15 1998-09-08 Nippon Soken, Inc. Solenoid-operated hydraulic control valve for use in fuel injection system for internal combustion engine
US20040055576A1 (en) * 2002-08-08 2004-03-25 Mccarthy James E. Engine control for a common rail fuel system using fuel spill determination
EP1600627A1 (en) * 2004-05-15 2005-11-30 L'orange Gmbh Control valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5803429A (en) * 1995-02-15 1998-09-08 Nippon Soken, Inc. Solenoid-operated hydraulic control valve for use in fuel injection system for internal combustion engine
US20040055576A1 (en) * 2002-08-08 2004-03-25 Mccarthy James E. Engine control for a common rail fuel system using fuel spill determination
EP1600627A1 (en) * 2004-05-15 2005-11-30 L'orange Gmbh Control valve

Also Published As

Publication number Publication date
EP1923564A2 (en) 2008-05-21
DE102006054063A1 (en) 2008-05-21

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