EP1030053A3 - Injector for an injection system of an internal combustion engine - Google Patents

Injector for an injection system of an internal combustion engine Download PDF

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Publication number
EP1030053A3
EP1030053A3 EP00103161A EP00103161A EP1030053A3 EP 1030053 A3 EP1030053 A3 EP 1030053A3 EP 00103161 A EP00103161 A EP 00103161A EP 00103161 A EP00103161 A EP 00103161A EP 1030053 A3 EP1030053 A3 EP 1030053A3
Authority
EP
European Patent Office
Prior art keywords
injector
bore
combustion engine
internal combustion
injection system
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.)
Ceased
Application number
EP00103161A
Other languages
German (de)
French (fr)
Other versions
EP1030053A2 (en
Inventor
Hakan Yalcin
Reda Rizk
Karen Zumstrull
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1030053A2 publication Critical patent/EP1030053A2/en
Publication of EP1030053A3 publication Critical patent/EP1030053A3/en
Ceased 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
    • 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
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
    • 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
    • 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
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Injektor (3) mit einem Zwischenkörper (2) mit einer ersten Führungsbohrung (10) und einem Düsenkörper (1) mit einer zweiten Führungsbohrung (11), in denen eine Düsennadel (9) geführt wird, einer Zulaufbohrung (5), die seitlich in eine Druckkammer (6) mündet. Durch den kurzen axialen Abstand zwischen der Druckkammer (6) und der Öffnung der zweiten Führungsbohrung (10) ist ein großer Winkel (a) zwischen der zweiten Zulaufbohrung (5) und der Führungsbohrung (11) möglich, wodurch die Druckfestigkeit im Bereich der Zwischenwand (11) zwischen der zweiten Zulaufbohrung (5) und der zweiten Führungsbohrung (10) erhöht wird.

Figure 00000001
Injector (3) with an intermediate body (2) with a first guide bore (10) and a nozzle body (1) with a second guide bore (11), in which a nozzle needle (9) is guided, an inlet bore (5), which runs laterally into a pressure chamber (6) opens. Due to the short axial distance between the pressure chamber (6) and the opening of the second guide bore (10), a large angle (a) between the second inlet bore (5) and the guide bore (11) is possible, which increases the pressure resistance in the area of the intermediate wall ( 11) between the second inlet bore (5) and the second guide bore (10) is increased.
Figure 00000001
EP00103161A 1999-02-16 2000-02-16 Injector for an injection system of an internal combustion engine Ceased EP1030053A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19906383 1999-02-16
DE1999106383 DE19906383A1 (en) 1999-02-16 1999-02-16 Injector for an injection system of an internal combustion engine

Publications (2)

Publication Number Publication Date
EP1030053A2 EP1030053A2 (en) 2000-08-23
EP1030053A3 true EP1030053A3 (en) 2003-05-14

Family

ID=7897628

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00103161A Ceased EP1030053A3 (en) 1999-02-16 2000-02-16 Injector for an injection system of an internal combustion engine

Country Status (2)

Country Link
EP (1) EP1030053A3 (en)
DE (1) DE19906383A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10234909A1 (en) * 2002-07-31 2004-02-19 Robert Bosch Gmbh Fuel injector for self-ignition internal combustion engine has inflow boring sector running through connection region of connector
DE10253721A1 (en) * 2002-11-19 2004-06-03 Robert Bosch Gmbh Fuel injection valve for internal combustion engines

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH285899A (en) * 1950-11-13 1952-09-30 S A Durex Injection valve with conical seat for internal combustion engines.
DE19520036A1 (en) * 1994-05-31 1995-12-07 Caterpillar Inc High pressure fuel injection nozzle
EP0719936A1 (en) * 1994-12-27 1996-07-03 Caterpillar Inc. Fuel injector for separate control of flow and momentum
DE19808660A1 (en) * 1998-03-02 1999-10-07 Siemens Ag Fuel injection valve for internal combustion (IC) engines
WO1999057433A2 (en) * 1998-05-07 1999-11-11 Siemens Aktiengesellschaft Fuel injection valve for internal combustion engines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5505384A (en) * 1994-06-28 1996-04-09 Caterpillar Inc. Rate shaping control valve for fuel injection nozzle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH285899A (en) * 1950-11-13 1952-09-30 S A Durex Injection valve with conical seat for internal combustion engines.
DE19520036A1 (en) * 1994-05-31 1995-12-07 Caterpillar Inc High pressure fuel injection nozzle
EP0719936A1 (en) * 1994-12-27 1996-07-03 Caterpillar Inc. Fuel injector for separate control of flow and momentum
DE19808660A1 (en) * 1998-03-02 1999-10-07 Siemens Ag Fuel injection valve for internal combustion (IC) engines
WO1999057433A2 (en) * 1998-05-07 1999-11-11 Siemens Aktiengesellschaft Fuel injection valve for internal combustion engines

Also Published As

Publication number Publication date
EP1030053A2 (en) 2000-08-23
DE19906383A1 (en) 2000-08-24

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