ATE539257T1 - FUEL INJECTOR - Google Patents

FUEL INJECTOR

Info

Publication number
ATE539257T1
ATE539257T1 AT10151027T AT10151027T ATE539257T1 AT E539257 T1 ATE539257 T1 AT E539257T1 AT 10151027 T AT10151027 T AT 10151027T AT 10151027 T AT10151027 T AT 10151027T AT E539257 T1 ATE539257 T1 AT E539257T1
Authority
AT
Austria
Prior art keywords
valve
control valve
unit
coupling
section
Prior art date
Application number
AT10151027T
Other languages
German (de)
Inventor
Andreas Gruenberger
Martin Kiontke
Original Assignee
Bosch Gmbh Robert
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 Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Application granted granted Critical
Publication of ATE539257T1 publication Critical patent/ATE539257T1/en

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
    • 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
    • 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
    • F02M63/0043—Two-way valves
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic

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

The injector has an actuator unit (1) for actuating a control valve (2), and a hydraulic coupling unit (3) arranged between the actuator unit and the control valve. The coupling unit stands in connection with the actuator unit, and the control valve is formed in a valve plate (5). The control valve includes an elongated valve bolt (6) with a section resting outside of the valve plate. The section forms a coupling unit's valve bolt (8) that is guided into a coupling sleeve (7). The section with the coupling sleeve and an adjustment piece (4) limits a pressure chamber (9).
AT10151027T 2009-03-04 2010-01-19 FUEL INJECTOR ATE539257T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009001322A DE102009001322A1 (en) 2009-03-04 2009-03-04 fuel injector

Publications (1)

Publication Number Publication Date
ATE539257T1 true ATE539257T1 (en) 2012-01-15

Family

ID=42244123

Family Applications (1)

Application Number Title Priority Date Filing Date
AT10151027T ATE539257T1 (en) 2009-03-04 2010-01-19 FUEL INJECTOR

Country Status (4)

Country Link
EP (1) EP2226490B1 (en)
AT (1) ATE539257T1 (en)
DE (1) DE102009001322A1 (en)
ES (1) ES2376421T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010043360A1 (en) 2010-11-04 2012-05-10 Robert Bosch Gmbh fuel injector

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004024282A1 (en) * 2004-05-15 2005-12-01 Robert Bosch Gmbh Pump-nozzle unit for internal combustion engine has control valve operated by hydraulic intensifier with first intensifying piston provided with blind hole in which is guided and sealed second intensifying piston
DE102006042601A1 (en) * 2006-09-11 2008-03-27 Robert Bosch Gmbh Injector for injecting fuel
DE102006062217A1 (en) * 2006-12-22 2008-06-26 Robert Bosch Gmbh Fuel injector operating method for e.g. diesel engine, involves separating pressure and/or flow forces such that switching forces from piezoactuator is reduced, where actuator has pulling and pushing operating phases during its operation
DE102007047426A1 (en) * 2007-05-15 2008-11-20 Robert Bosch Gmbh Injector with piezo actuator

Also Published As

Publication number Publication date
ES2376421T3 (en) 2012-03-13
EP2226490A1 (en) 2010-09-08
DE102009001322A1 (en) 2010-09-09
EP2226490B1 (en) 2011-12-28

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