DE10346242A1 - Injektorkörper für einen Common Rail Injektor - Google Patents

Injektorkörper für einen Common Rail Injektor Download PDF

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Publication number
DE10346242A1
DE10346242A1 DE2003146242 DE10346242A DE10346242A1 DE 10346242 A1 DE10346242 A1 DE 10346242A1 DE 2003146242 DE2003146242 DE 2003146242 DE 10346242 A DE10346242 A DE 10346242A DE 10346242 A1 DE10346242 A1 DE 10346242A1
Authority
DE
Germany
Prior art keywords
injector
connection
high pressure
controlling
fluid flow
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.)
Granted
Application number
DE2003146242
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English (en)
Other versions
DE10346242B4 (de
Inventor
Werner Wagner
Stefan Haug
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
Priority to DE2003146242 priority Critical patent/DE10346242B4/de
Publication of DE10346242A1 publication Critical patent/DE10346242A1/de
Application granted granted Critical
Publication of DE10346242B4 publication Critical patent/DE10346242B4/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators

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

Die Erfindung betrifft einen Injektorkörper (1) für einen Common Rail Injektor zum Steuern von Flüssigkeitsströmen, welcher eine Aktoraussparung (11, 27) und eine seitlich angeordnete Zulaufbohrung (24) besitzt, die mit einem Hochdruckzulauf (23) in Verbindung steht, wobei die Aktoraussparung (11, 27) einen Aktor (30) mit einem Stempel (31) und einem Aktorfuß (32) aufweist, wobei die Aktoraussparung (27) eine Kegeldichtung besitzt, die mittels einer Kegelfläche (27.1) am Ende des Aktorraumes (27) und einer dazu korrespondierenden kegelförmigen Dichtfläche (33) am Aktorfuß (32) ausgebildet ist, wobei mit der Kegeldichtung ein Kabelabgang (25) abdichtbar ist. Um die Herstellbarkeit, die Hochdruckfestigkeit sowie die Aktoraufnahme und -führung des direktgesteuerten Piezoinjektors zu verbessern, ist es erfindungsgemäß vorgesehen, dass der Injektorkörper (1) mehrteilig ausgeführt ist und mindestens aus einem Basiskörper (10) und einem Anschlusskörper (20) besteht.
DE2003146242 2003-10-06 2003-10-06 Injektorkörper für einen Common Rail Injektor Expired - Fee Related DE10346242B4 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2003146242 DE10346242B4 (de) 2003-10-06 2003-10-06 Injektorkörper für einen Common Rail Injektor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003146242 DE10346242B4 (de) 2003-10-06 2003-10-06 Injektorkörper für einen Common Rail Injektor

Publications (2)

Publication Number Publication Date
DE10346242A1 true DE10346242A1 (de) 2005-04-21
DE10346242B4 DE10346242B4 (de) 2012-04-12

Family

ID=34353330

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003146242 Expired - Fee Related DE10346242B4 (de) 2003-10-06 2003-10-06 Injektorkörper für einen Common Rail Injektor

Country Status (1)

Country Link
DE (1) DE10346242B4 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1950410A2 (de) 2007-01-29 2008-07-30 Robert Bosch Gmbh Injektor mit piezoelektrischem Aktuator
WO2013026611A1 (de) 2011-08-25 2013-02-28 Robert Bosch Gmbh Injektor für ein fluid mit einer fluidzuführung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9925753D0 (en) * 1999-10-29 1999-12-29 Lucas Industries Ltd Fuel injector
US6520423B1 (en) * 2000-03-21 2003-02-18 Delphi Technologies, Inc. Hydraulic intensifier assembly for a piezoelectric actuated fuel injector
ES2280318T3 (es) * 2000-07-18 2007-09-16 Delphi Technologies, Inc. Inyector de combustible.
DE10326259A1 (de) * 2003-06-11 2005-01-05 Robert Bosch Gmbh Injektor für Kraftstoff-Einspritzsysteme von Brennkraftmaschinen, insbesondere von direkteinspritzenden Dieselmotoren

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1950410A2 (de) 2007-01-29 2008-07-30 Robert Bosch Gmbh Injektor mit piezoelektrischem Aktuator
DE102007004380A1 (de) 2007-01-29 2008-07-31 Robert Bosch Gmbh Injektor mit piezoelektrischem Aktuator
WO2013026611A1 (de) 2011-08-25 2013-02-28 Robert Bosch Gmbh Injektor für ein fluid mit einer fluidzuführung
DE102011081534A1 (de) 2011-08-25 2013-02-28 Robert Bosch Gmbh Injektor für ein Fluid

Also Published As

Publication number Publication date
DE10346242B4 (de) 2012-04-12

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8110 Request for examination paragraph 44
R016 Response to examination communication
R016 Response to examination communication
R018 Grant decision by examination section/examining division
R020 Patent grant now final

Effective date: 20120713

R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee