EP1273792A3 - Kraftstoffinjektor mit hochdruckfestem Zulauf - Google Patents

Kraftstoffinjektor mit hochdruckfestem Zulauf Download PDF

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Publication number
EP1273792A3
EP1273792A3 EP02014392A EP02014392A EP1273792A3 EP 1273792 A3 EP1273792 A3 EP 1273792A3 EP 02014392 A EP02014392 A EP 02014392A EP 02014392 A EP02014392 A EP 02014392A EP 1273792 A3 EP1273792 A3 EP 1273792A3
Authority
EP
European Patent Office
Prior art keywords
central space
injector
fuel injector
pressure resistant
resistant supply
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
EP02014392A
Other languages
English (en)
French (fr)
Other versions
EP1273792B1 (de
EP1273792A2 (de
Inventor
Friedrich Boecking
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 EP1273792A2 publication Critical patent/EP1273792A2/de
Publication of EP1273792A3 publication Critical patent/EP1273792A3/de
Application granted granted Critical
Publication of EP1273792B1 publication Critical patent/EP1273792B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/008—Arrangement of fuel passages inside of injectors
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • 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
    • 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
    • F02M2200/03—Fuel-injection apparatus having means for reducing or avoiding stress, e.g. the stress caused by mechanical force, by fluid pressure or by temperature variations
    • 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
    • F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
    • F02M2547/003—Valve inserts containing control chamber and valve piston

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

Die Erfindung bezieht sich auf einen Injektor zum Einspritzen von Kraftstoff in den Brennraum einer Verbrennungskraftmaschine. Der Injektor (1) ist über einen Aktor (29) betätigbar und umfasst einen zentralen Raum (5, 44), über den unter hohem Druck stehender Kraftstoff in einen eine Düsennadel 4 betätigenden Steuerraum (3) eintritt. Der zentrale Raum (5, 44) ist über einen Anschluss (7) mit einer Hochdruckquelle verbunden. Im Injektorkörper (13) sind zwischen dem zentralen Raum (5, 44) und einer Stirnseite (38) am Anschluss (7) Zulaufbohrungen (30, 31) ausgebildet, deren Durchmesser (33, 34) um ein Vielfaches geringer sind als die Durchmesser (36, 45) des zentralen Raumes (5, 44).
Figure 00000001
EP02014392A 2001-07-04 2002-06-28 Kraftstoffinjektor mit hochdruckfestem Zulauf Expired - Lifetime EP1273792B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10132246 2001-07-04
DE10132246A DE10132246A1 (de) 2001-07-04 2001-07-04 Kraftstoffinjektor mit hochdruckfestem Zulauf

Publications (3)

Publication Number Publication Date
EP1273792A2 EP1273792A2 (de) 2003-01-08
EP1273792A3 true EP1273792A3 (de) 2005-01-05
EP1273792B1 EP1273792B1 (de) 2011-09-28

Family

ID=7690471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02014392A Expired - Lifetime EP1273792B1 (de) 2001-07-04 2002-06-28 Kraftstoffinjektor mit hochdruckfestem Zulauf

Country Status (4)

Country Link
US (1) US6814301B2 (de)
EP (1) EP1273792B1 (de)
JP (1) JP2003035235A (de)
DE (1) DE10132246A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10143947A1 (de) * 2001-09-07 2003-04-03 Bosch Gmbh Robert Injektorkörper mit tangentialem Druckanschluss
US20050106035A1 (en) * 2002-10-29 2005-05-19 Nobuo Aoki High flow rate fuel valve and fuel supply pump with the valve
EP1557559A4 (de) * 2002-10-29 2006-06-07 Bosch Automotive Systems Corp Kraftstoffventil mit hoher durchflussrate und kraftstoffzufuhrpumpe mit dem ventil
DE102008040383A1 (de) * 2008-07-14 2010-01-21 Robert Bosch Gmbh Hochdruckfester Kraftstoffinjektor
JP5218583B2 (ja) * 2011-03-09 2013-06-26 株式会社デンソー インジェクタ
JP6245681B2 (ja) * 2013-06-03 2017-12-13 ボッシュ株式会社 燃料噴射弁
KR20200059343A (ko) * 2018-11-20 2020-05-29 현대자동차주식회사 엔진의 연료 인젝터

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5655716A (en) * 1994-03-29 1997-08-12 Mathis; Christian Injection valve for an internal combustion engine, in particular a diesel motor
DE19650865A1 (de) * 1996-12-07 1998-06-10 Bosch Gmbh Robert Magnetventil
EP0916842A1 (de) * 1997-11-18 1999-05-19 ELASIS SISTEMA RICERCA FIAT NEL MEZZOGIORNO Società Consortile per Azioni Vorrichtung zum Steuern eines Kraftstoffeinspritzventils von Brennkraftmaschinen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1412413A (en) * 1971-10-28 1975-11-05 Cav Ltd Liquid fuel injection systems
JPH0286953A (ja) * 1988-09-21 1990-03-27 Kanesaka Gijutsu Kenkyusho:Kk 燃料噴射弁
JP2689721B2 (ja) * 1990-11-16 1997-12-10 トヨタ自動車株式会社 内燃機関の燃料圧力制御装置
US5397055A (en) * 1991-11-01 1995-03-14 Paul; Marius A. Fuel injector system
US5299919A (en) * 1991-11-01 1994-04-05 Paul Marius A Fuel injector system
JP3555264B2 (ja) 1995-07-14 2004-08-18 いすゞ自動車株式会社 内燃機関の燃料噴射装置
DE19640480B4 (de) * 1996-09-30 2004-04-22 Robert Bosch Gmbh Kraftstoffhochdruckspeicher
DE19937946C1 (de) * 1999-08-11 2001-04-19 Bosch Gmbh Robert Kraftstoffhochdruckspeicher für ein Kraftstoffeinspritzsystem für Brennkraftmaschinen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5655716A (en) * 1994-03-29 1997-08-12 Mathis; Christian Injection valve for an internal combustion engine, in particular a diesel motor
DE19650865A1 (de) * 1996-12-07 1998-06-10 Bosch Gmbh Robert Magnetventil
EP0916842A1 (de) * 1997-11-18 1999-05-19 ELASIS SISTEMA RICERCA FIAT NEL MEZZOGIORNO Società Consortile per Azioni Vorrichtung zum Steuern eines Kraftstoffeinspritzventils von Brennkraftmaschinen

Also Published As

Publication number Publication date
US6814301B2 (en) 2004-11-09
JP2003035235A (ja) 2003-02-07
US20030080217A1 (en) 2003-05-01
DE10132246A1 (de) 2003-01-23
EP1273792B1 (de) 2011-09-28
EP1273792A2 (de) 2003-01-08

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