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DE502008003288D1 - CONTROL VALVE, ESPECIALLY FOR A FUEL INJECTOR OF AN INTERNAL COMBUSTION ENGINE - Google Patents

CONTROL VALVE, ESPECIALLY FOR A FUEL INJECTOR OF AN INTERNAL COMBUSTION ENGINE

Info

Publication number
DE502008003288D1
DE502008003288D1 DE502008003288T DE502008003288T DE502008003288D1 DE 502008003288 D1 DE502008003288 D1 DE 502008003288D1 DE 502008003288 T DE502008003288 T DE 502008003288T DE 502008003288 T DE502008003288 T DE 502008003288T DE 502008003288 D1 DE502008003288 D1 DE 502008003288D1
Authority
DE
Germany
Prior art keywords
combustion engine
internal combustion
fuel injector
control valve
valve
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.)
Active
Application number
DE502008003288T
Other languages
German (de)
Inventor
Holger Rapp
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 DE502008003288D1 publication Critical patent/DE502008003288D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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

A control valve is proposed for controlling liquids, particularly for a fuel injector of an internal combustion engine, with an actuating unit (25) which acts via a coupler module (30) on a valve element (41. The coupler module (30), which is guided in a coupler housing (31), has a coupler piston (33) and a valve piston (34). The valve piston (34) has a notch (50) which forms a support on the valve piston side for a conically wound valve piston spring (54).
DE502008003288T 2007-07-11 2008-06-13 CONTROL VALVE, ESPECIALLY FOR A FUEL INJECTOR OF AN INTERNAL COMBUSTION ENGINE Active DE502008003288D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007032219A DE102007032219A1 (en) 2007-07-11 2007-07-11 Control valve, in particular for a fuel injector of an internal combustion engine
PCT/EP2008/057450 WO2009007195A1 (en) 2007-07-11 2008-06-13 Control valve, particularly for a fuel injector of an internal combustion engine

Publications (1)

Publication Number Publication Date
DE502008003288D1 true DE502008003288D1 (en) 2011-06-01

Family

ID=39769060

Family Applications (2)

Application Number Title Priority Date Filing Date
DE102007032219A Withdrawn DE102007032219A1 (en) 2007-07-11 2007-07-11 Control valve, in particular for a fuel injector of an internal combustion engine
DE502008003288T Active DE502008003288D1 (en) 2007-07-11 2008-06-13 CONTROL VALVE, ESPECIALLY FOR A FUEL INJECTOR OF AN INTERNAL COMBUSTION ENGINE

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE102007032219A Withdrawn DE102007032219A1 (en) 2007-07-11 2007-07-11 Control valve, in particular for a fuel injector of an internal combustion engine

Country Status (4)

Country Link
EP (1) EP2165069B1 (en)
AT (1) ATE506531T1 (en)
DE (2) DE102007032219A1 (en)
WO (1) WO2009007195A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010029607A1 (en) 2010-06-02 2011-12-08 Robert Bosch Gmbh Fuel injector comprises hydraulic coupling module, which has coupling piston and valve piston, which is axially guided in common coupling body, where supply of supply line is interconnected with high pressure line

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB533709A (en) * 1938-08-13 1941-02-19 Daimler Benz Ag Improvements in liquid pumps
DE10203655A1 (en) * 2002-01-30 2004-01-22 Robert Bosch Gmbh Fuel injector
DE10322672A1 (en) 2003-05-20 2004-12-09 Robert Bosch Gmbh Valve for controlling liquids

Also Published As

Publication number Publication date
ATE506531T1 (en) 2011-05-15
EP2165069A1 (en) 2010-03-24
DE102007032219A1 (en) 2009-01-15
EP2165069B1 (en) 2011-04-20
WO2009007195A1 (en) 2009-01-15

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