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EP2011995A3 - Injector with a valve element which opens to the outside - Google Patents

Injector with a valve element which opens to the outside Download PDF

Info

Publication number
EP2011995A3
EP2011995A3 EP08104395A EP08104395A EP2011995A3 EP 2011995 A3 EP2011995 A3 EP 2011995A3 EP 08104395 A EP08104395 A EP 08104395A EP 08104395 A EP08104395 A EP 08104395A EP 2011995 A3 EP2011995 A3 EP 2011995A3
Authority
EP
European Patent Office
Prior art keywords
valve element
control chamber
injector
opens
outside
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
EP08104395A
Other languages
German (de)
French (fr)
Other versions
EP2011995A2 (en
EP2011995B1 (en
Inventor
Matthias Burger
Hans-Christoph Magel
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 EP2011995A2 publication Critical patent/EP2011995A2/en
Publication of EP2011995A3 publication Critical patent/EP2011995A3/en
Application granted granted Critical
Publication of EP2011995B1 publication Critical patent/EP2011995B1/en
Not-in-force 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/08—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves opening in direction of fuel flow
    • 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
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • F02M63/0042—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing combined with valve seats of the lift valve type
    • 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
    • F02M63/0073—Pressure balanced 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/28—Details of throttles in fuel-injection apparatus
    • 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
    • F02M2200/40—Fuel-injection apparatus with fuel accumulators, e.g. a fuel injector having an integrated fuel accumulator
    • 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
    • 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

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 relay valve (38) provided for controlling a valve element (12) opening outwards. A control chamber (11) is formed as an annular space, co-operates with the valve element, and is combinable with a low-pressure area (9) for opening the valve element. The control chamber is defined by a diameter step (57) of the valve element. Fuel e.g. diesel, flows from the control chamber into the low-pressure area via an outlet throttle (33) by an opened relay valve. The control chamber is provided with fuel which is fixed below high pressure, via an inlet throttle (28).
EP08104395A 2007-07-02 2008-06-13 Injector with a valve element which opens to the outside Not-in-force EP2011995B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007030711A DE102007030711A1 (en) 2007-07-02 2007-07-02 Injector with outwardly opening valve element

Publications (3)

Publication Number Publication Date
EP2011995A2 EP2011995A2 (en) 2009-01-07
EP2011995A3 true EP2011995A3 (en) 2010-01-27
EP2011995B1 EP2011995B1 (en) 2011-10-26

Family

ID=39790115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08104395A Not-in-force EP2011995B1 (en) 2007-07-02 2008-06-13 Injector with a valve element which opens to the outside

Country Status (4)

Country Link
EP (1) EP2011995B1 (en)
AT (1) ATE530759T1 (en)
BR (1) BRPI0803705A2 (en)
DE (1) DE102007030711A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011078852A1 (en) 2011-07-08 2013-01-10 Robert Bosch Gmbh Dosing unit for introducing reducing agent into exhaust gas flow of combustion engine of motor vehicle, comprises conveying module and nozzle that is open outwards, where nozzle has nozzle body with recess, and nozzle-needle
DE102011078850A1 (en) 2011-07-08 2013-01-10 Robert Bosch Gmbh Metering device for introducing reducing agent into exhaust gas stream of internal combustion engine used in motor vehicle, has check valve that is connected with recess portion equipped in pump plunger
EP2602476A1 (en) 2011-12-07 2013-06-12 Continental Automotive GmbH Valve assembly means for an injection valve and injection valve
EP2857670B1 (en) 2013-10-04 2018-12-12 Continental Automotive GmbH Fuel injector
US9970400B2 (en) * 2015-09-15 2018-05-15 Caterpillar Inc. Fuel admission valve for pre-chamber

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1734250A1 (en) * 2005-06-15 2006-12-20 Denso Corporation Fuel injection valve
US20080099585A1 (en) * 2006-09-18 2008-05-01 Denso Corporation Fuel injection valve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19827267A1 (en) 1998-06-18 1999-12-23 Bosch Gmbh Robert Fuel injection valve for high pressure injection with improved control of the fuel supply

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1734250A1 (en) * 2005-06-15 2006-12-20 Denso Corporation Fuel injection valve
US20080099585A1 (en) * 2006-09-18 2008-05-01 Denso Corporation Fuel injection valve

Also Published As

Publication number Publication date
EP2011995A2 (en) 2009-01-07
EP2011995B1 (en) 2011-10-26
ATE530759T1 (en) 2011-11-15
BRPI0803705A2 (en) 2009-06-16
DE102007030711A1 (en) 2009-01-08

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