ATE542042T1 - FUEL INJECTOR WITH PRESSURE BALANCED CONTROL VALVE - Google Patents

FUEL INJECTOR WITH PRESSURE BALANCED CONTROL VALVE

Info

Publication number
ATE542042T1
ATE542042T1 AT10162230T AT10162230T ATE542042T1 AT E542042 T1 ATE542042 T1 AT E542042T1 AT 10162230 T AT10162230 T AT 10162230T AT 10162230 T AT10162230 T AT 10162230T AT E542042 T1 ATE542042 T1 AT E542042T1
Authority
AT
Austria
Prior art keywords
control valve
valve element
fuel injector
pressure balanced
balanced control
Prior art date
Application number
AT10162230T
Other languages
German (de)
Inventor
Andreas Rau
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 ATE542042T1 publication Critical patent/ATE542042T1/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
    • F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
    • F02M63/0035—Poppet valves, i.e. having a mushroom-shaped valve member that moves perpendicularly to the plane of the valve seat
    • 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

The injector (1) has a control valve element (26) adjustable between two switching positions. The valve element is formed and arranged such that no or reduced resulting hydraulic force is exerted in an axial direction on the valve element by pressure in a control chamber (17) when a hydraulic connection between the chamber and a low pressure region (10) is disconnected in one of the switching positions. The valve element sealingly lies at a guiding sleeve (32) in the other switching position for sealing a hydraulic connection between a control valve chamber (24) and a high pressure region (8).
AT10162230T 2009-07-07 2010-05-07 FUEL INJECTOR WITH PRESSURE BALANCED CONTROL VALVE ATE542042T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009027494A DE102009027494A1 (en) 2009-07-07 2009-07-07 Fuel injector with pressure compensated control valve

Publications (1)

Publication Number Publication Date
ATE542042T1 true ATE542042T1 (en) 2012-02-15

Family

ID=42767939

Family Applications (1)

Application Number Title Priority Date Filing Date
AT10162230T ATE542042T1 (en) 2009-07-07 2010-05-07 FUEL INJECTOR WITH PRESSURE BALANCED CONTROL VALVE

Country Status (3)

Country Link
EP (1) EP2275666B1 (en)
AT (1) ATE542042T1 (en)
DE (1) DE102009027494A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011002955A1 (en) * 2011-01-21 2012-07-26 Robert Bosch Gmbh Fuel injector
DE102011007106A1 (en) * 2011-04-11 2012-10-11 Robert Bosch Gmbh Fuel injector
DE102011081643A1 (en) * 2011-06-30 2013-01-03 Robert Bosch Gmbh fuel injector

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004030445A1 (en) 2004-06-24 2006-01-12 Robert Bosch Gmbh Fuel injector
DE102004046191B3 (en) * 2004-09-23 2006-04-13 Siemens Ag Servo valve and injector
DE102004049702B3 (en) * 2004-10-12 2006-03-09 Siemens Ag Servo valve and injector
DE102006009070A1 (en) * 2006-02-28 2007-08-30 Robert Bosch Gmbh Fuel-injection valve for air-compressing, auto-igniting internal combustion engines comprises a valve with a corrugated washer partly surrounding the periphery of a bolt section of a valve bolt
JP4582061B2 (en) * 2006-07-04 2010-11-17 株式会社デンソー Piezo injector and injector drive system
DE102007047426A1 (en) * 2007-05-15 2008-11-20 Robert Bosch Gmbh Injector with piezo actuator
US20090165749A1 (en) * 2007-12-27 2009-07-02 Caterpillar Inc. Engine and control valve assembly having reduced variability in operation over time
DE102008001330A1 (en) 2008-04-23 2009-10-29 Robert Bosch Gmbh Fuel injection valve for internal combustion engines

Also Published As

Publication number Publication date
EP2275666B1 (en) 2012-01-18
EP2275666A1 (en) 2011-01-19
DE102009027494A1 (en) 2011-01-13

Similar Documents

Publication Publication Date Title
WO2011008428A3 (en) Hydraulic valve for use in a control module of an automatic transmission
RU2011149355A (en) FUEL INJECTOR WITH PRESSURE SENSOR
ATE491884T1 (en) FUEL INJECTOR
DK2294331T3 (en) Hydraulic valve assembly
DE502007004919D1 (en) PRE-CONTROLLED PRESSURE LIMIT VALVE
BR112017012684A2 (en) fuel injector
WO2008102734A1 (en) Directional control valve device and directional control valve device block having directional control valve devices
ATE542042T1 (en) FUEL INJECTOR WITH PRESSURE BALANCED CONTROL VALVE
EP2206912A3 (en) Fuel injector
WO2018140986A3 (en) Hydraulic actuator with pressure-based piston position feedback
ATE529627T1 (en) SWITCHING VALVE WITH COATED SEALING SEAT
ATE448401T1 (en) INJECTOR
FR2933453B1 (en) FUEL INJECTION VALVE
ATE522763T1 (en) SLIDE VALVE WITH INTEGRATED HYDRAULIC ACTUATOR FOR UNDERWATER USE
GB2482636A (en) Flow-actuated actuator and method
ATE529624T1 (en) PRESSURE BALANCED ACTUATING ELEMENT
ATE467757T1 (en) INJECTOR
EP1967727A3 (en) Fuel injector with improved implementation of a control valve for controlling an injection needle
BR112014031719A2 (en) axial fluid valves having linear actuators
WO2011091904A3 (en) Arrangement for controlling the position of a device with a fluid pressure-driven piston-cylinder arrangement
FI20106310L (en) A Fuel Injection Apparatus, a Piston Engine and Method of Operating a Piston Engine
ATE449250T1 (en) INJECTOR WITH ADDITIONAL SERVO VALVE
WO2014026699A8 (en) Fluid valve
ATE483106T1 (en) FUEL INJECTOR WITH COUPLER
ATE539257T1 (en) FUEL INJECTOR