EP2428672A3 - Kraftstoffinjektor - Google Patents

Kraftstoffinjektor Download PDF

Info

Publication number
EP2428672A3
EP2428672A3 EP11174601A EP11174601A EP2428672A3 EP 2428672 A3 EP2428672 A3 EP 2428672A3 EP 11174601 A EP11174601 A EP 11174601A EP 11174601 A EP11174601 A EP 11174601A EP 2428672 A3 EP2428672 A3 EP 2428672A3
Authority
EP
European Patent Office
Prior art keywords
nozzle needle
fuel injector
sealing seats
injector
injector housing
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.)
Withdrawn
Application number
EP11174601A
Other languages
English (en)
French (fr)
Other versions
EP2428672A2 (de
Inventor
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 EP2428672A2 publication Critical patent/EP2428672A2/de
Publication of EP2428672A3 publication Critical patent/EP2428672A3/de
Withdrawn legal-status Critical Current

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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0614—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature
    • F02M51/0617—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature having two or more electromagnets
    • F02M51/0621—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature having two or more electromagnets acting on one mobile armature
    • 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
    • F02M61/042—The valves being provided with fuel passages
    • 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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1866—Valve seats or member ends having multiple cones
    • 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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift
    • 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)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Die Erfindung betrifft einen Kraftstoffinjektor (10; 10a; 10b), mit einem Injektorgehäuse (15), in wenigstens ein Aktor (45, 46, 47; 57; 60) angeordnet ist, der mit einer auf- und abbeweglichen Düsennadel (20; 20a; 20b) zumindest mittelbar zusammenwirkt, die wenigstens einen am Injektorgehäuse (15) ausgebildeten Durchlass (17) für unter Hochdruck stehendem Kraftstoff steuert, wobei die Düsennadel (20; 20a; 20b) als zumindest teilweise druckausgeglichene Düsennadel (20; 20a; 20b) ausgebildet ist. Erfindungsgemäß ist es vorgesehen, dass die Düsennadel (20; 20a; 20b) zwei Dichtsitze (22, 36) aufweist, die in Axialrichtung der Düsennadel (20; 20a; 20b) voneinander beabstandet angeordnet sind und dass zwischen den beiden Dichtsitzen (22, 36) die wenigstens eine Durchlassöffnung (17) ausgebildet ist.
EP11174601A 2010-09-08 2011-07-20 Kraftstoffinjektor Withdrawn EP2428672A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010040401 DE102010040401A1 (de) 2010-09-08 2010-09-08 Kraftstoffinjektor

Publications (2)

Publication Number Publication Date
EP2428672A2 EP2428672A2 (de) 2012-03-14
EP2428672A3 true EP2428672A3 (de) 2013-03-06

Family

ID=45218142

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11174601A Withdrawn EP2428672A3 (de) 2010-09-08 2011-07-20 Kraftstoffinjektor

Country Status (2)

Country Link
EP (1) EP2428672A3 (de)
DE (1) DE102010040401A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2746564B1 (de) 2012-12-21 2016-04-27 Continental Automotive GmbH Elektromagnetische Aktuatoranordnung für ein Flüssigkeitseinspritzventil und Verfahren für den Betrieb eines Flüssigkeitseinspritzventils
DE102019210551A1 (de) * 2019-07-17 2021-01-21 Robert Bosch Gmbh Kraftstoffinjektor
CN114352453B (zh) * 2022-01-24 2023-01-10 一汽解放汽车有限公司 一种共轨系统可变喷射速率喷射器、喷射控制方法和汽车
GB2616436A (en) * 2022-03-08 2023-09-13 Delphi Tech Ip Ltd Fuel injector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050173565A1 (en) * 2004-01-13 2005-08-11 Cooke Michael P. Injection nozzle
DE102008001895A1 (de) * 2008-05-21 2009-11-26 Robert Bosch Gmbh Brennstoffeinspritzventil
EP2239451A1 (de) * 2009-03-30 2010-10-13 Wärtsilä Switzerland Ltd. Kraftstoffeinspritzventil für Verbrennungsmotoren
EP2405127A1 (de) * 2010-07-07 2012-01-11 Wärtsilä Switzerland Ltd. Kraftstoffeinspritzdüse für Verbrennungsmotoren

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050173565A1 (en) * 2004-01-13 2005-08-11 Cooke Michael P. Injection nozzle
DE102008001895A1 (de) * 2008-05-21 2009-11-26 Robert Bosch Gmbh Brennstoffeinspritzventil
EP2239451A1 (de) * 2009-03-30 2010-10-13 Wärtsilä Switzerland Ltd. Kraftstoffeinspritzventil für Verbrennungsmotoren
EP2405127A1 (de) * 2010-07-07 2012-01-11 Wärtsilä Switzerland Ltd. Kraftstoffeinspritzdüse für Verbrennungsmotoren

Also Published As

Publication number Publication date
EP2428672A2 (de) 2012-03-14
DE102010040401A1 (de) 2012-03-08

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