EP2282045A1 - Soupape d'injection de combustible - Google Patents

Soupape d'injection de combustible Download PDF

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Publication number
EP2282045A1
EP2282045A1 EP10161556A EP10161556A EP2282045A1 EP 2282045 A1 EP2282045 A1 EP 2282045A1 EP 10161556 A EP10161556 A EP 10161556A EP 10161556 A EP10161556 A EP 10161556A EP 2282045 A1 EP2282045 A1 EP 2282045A1
Authority
EP
European Patent Office
Prior art keywords
valve
sleeve
fuel injection
coupler
closing body
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
EP10161556A
Other languages
German (de)
English (en)
Other versions
EP2282045B1 (fr
Inventor
Michael Kurz
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 EP2282045A1 publication Critical patent/EP2282045A1/fr
Application granted granted Critical
Publication of EP2282045B1 publication Critical patent/EP2282045B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • F02M47/025—Hydraulically 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

Definitions

  • the fuel injection valve according to the invention with the features of claim 1 has the advantage that a high performance, in particular a high efficiency, even at high pressures is possible. Specifically, there is the advantage that an at least largely pressure-balanced switching concept can be realized.
  • valve sleeve has a guide bore, in which the guide lug is at least partially inserted, and that a guide diameter of the guide bore is at least approximately equal to a seat diameter of the sealing seat, which is formed between the valve closing body and the valve seat surface of the valve sleeve.
  • the actuating device 13 that is to say the piezoelectric actuator 13 is charged via electrical lines 47.
  • the actuator 13 expands along the axis 32.
  • the coupler volume of the coupler space 39 is thereby reduced.
  • the pressure in the coupler chamber 39 increases.
  • an increase in pressure in the valve control chamber 42 is thus achieved, with the volume of the valve control chamber 42 also increasing in relation to the reduction of the volume of the coupler chamber 39.
  • Fig. 2 shows a partial representation of a fuel injection valve 1 in a schematic sectional view according to a second embodiment.
  • the valve pin 28 is supported in contrast to that in the Fig. 1 illustrated first embodiment not directly on the plate-shaped part 36 of the valve cage 25 from.
  • the support of the valve pin 28 on the plate-shaped part 36 of the valve cage 25 is effected indirectly, wherein between the second end 30 of the valve pin 28 and the plate-shaped part 36, an adjusting body 60 is arranged.
  • the adjusting body 60 is formed by a shim 60 partially inserted in a recess 61 in the plate-shaped member 36.

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)
EP10161556A 2009-06-29 2010-04-30 Soupape d'injection de combustible Not-in-force EP2282045B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009027261A DE102009027261A1 (de) 2009-06-29 2009-06-29 Brennstoffeinspritzventil

Publications (2)

Publication Number Publication Date
EP2282045A1 true EP2282045A1 (fr) 2011-02-09
EP2282045B1 EP2282045B1 (fr) 2012-04-25

Family

ID=42732885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10161556A Not-in-force EP2282045B1 (fr) 2009-06-29 2010-04-30 Soupape d'injection de combustible

Country Status (3)

Country Link
EP (1) EP2282045B1 (fr)
AT (1) ATE555302T1 (fr)
DE (1) DE102009027261A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0781913A2 (fr) * 1995-12-23 1997-07-02 LUCAS INDUSTRIES public limited company Dispositif de soupape
WO2002084106A1 (fr) * 2001-04-11 2002-10-24 Robert Bosch Gmbh Soupape pour commander le passage de fluides
DE10164123A1 (de) 2001-12-24 2003-01-30 Bosch Gmbh Robert Kraftstoff-Einspritzvorrichtung
EP1612403A1 (fr) * 2004-06-30 2006-01-04 C.R.F. Societa' Consortile per Azioni Soupape servo pour controller l'injecteur d'un moteur à combustion interne
DE102007018042A1 (de) * 2007-04-13 2008-10-16 Robert Bosch Gmbh Injektor mit mehrteiligem Ventilelement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0781913A2 (fr) * 1995-12-23 1997-07-02 LUCAS INDUSTRIES public limited company Dispositif de soupape
WO2002084106A1 (fr) * 2001-04-11 2002-10-24 Robert Bosch Gmbh Soupape pour commander le passage de fluides
DE10164123A1 (de) 2001-12-24 2003-01-30 Bosch Gmbh Robert Kraftstoff-Einspritzvorrichtung
EP1612403A1 (fr) * 2004-06-30 2006-01-04 C.R.F. Societa' Consortile per Azioni Soupape servo pour controller l'injecteur d'un moteur à combustion interne
DE102007018042A1 (de) * 2007-04-13 2008-10-16 Robert Bosch Gmbh Injektor mit mehrteiligem Ventilelement

Also Published As

Publication number Publication date
DE102009027261A1 (de) 2010-12-30
ATE555302T1 (de) 2012-05-15
EP2282045B1 (fr) 2012-04-25

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