EP1026393A3 - Injector for the injection system of an internal combustion engine - Google Patents

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

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Publication number
EP1026393A3
EP1026393A3 EP00101964A EP00101964A EP1026393A3 EP 1026393 A3 EP1026393 A3 EP 1026393A3 EP 00101964 A EP00101964 A EP 00101964A EP 00101964 A EP00101964 A EP 00101964A EP 1026393 A3 EP1026393 A3 EP 1026393A3
Authority
EP
European Patent Office
Prior art keywords
injector
combustion engine
internal combustion
injection system
nozzle 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.)
Ceased
Application number
EP00101964A
Other languages
German (de)
French (fr)
Other versions
EP1026393A2 (en
Inventor
Eberhard Kull
Wolfgang Reisinger
Gerd Schmutzler
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 EP1026393A2 publication Critical patent/EP1026393A2/en
Publication of EP1026393A3 publication Critical patent/EP1026393A3/en
Ceased 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
    • 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
    • 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
    • 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
    • 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
    • F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
    • 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
    • F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
    • F02M61/163—Means being injection-valves with helically or spirally shaped grooves

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

Injektor für eine Einspritzanlage einer Brennkraftmaschine, wobei der Hochdruckkanal (320) für die Zuführung von Kraftstoff oberhalb des Düsenkörpers (700) in eine zentrische Bohrung (620) mündet, über die der Kraftstoff zu dem Düsenkörper (700) weitergeleitet wird, so daß im unteren Bereich des Injektors auf einen separaten Hochdruckkanal verzichtet werden kann, wodurch der konstruktive Gestaltungsspielraum für den Düsenkörper (700) vergrößert und die Druckfestigkeit des Injektors erhöht wird.

Figure 00000001
Injector for an injection system of an internal combustion engine, the high-pressure channel (320) for supplying fuel opening above the nozzle body (700) into a central bore (620) through which the fuel is passed on to the nozzle body (700), so that in the lower A separate high-pressure duct can be dispensed with in the area of the injector, which increases the design scope for the nozzle body (700) and increases the pressure resistance of the injector.
Figure 00000001
EP00101964A 1999-02-05 2000-02-01 Injector for the injection system of an internal combustion engine Ceased EP1026393A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904720 1999-02-05
DE1999104720 DE19904720C2 (en) 1999-02-05 1999-02-05 Injector for an injection system of an internal combustion engine

Publications (2)

Publication Number Publication Date
EP1026393A2 EP1026393A2 (en) 2000-08-09
EP1026393A3 true EP1026393A3 (en) 2003-05-07

Family

ID=7896555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00101964A Ceased EP1026393A3 (en) 1999-02-05 2000-02-01 Injector for the injection system of an internal combustion engine

Country Status (2)

Country Link
EP (1) EP1026393A3 (en)
DE (1) DE19904720C2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10050054B4 (en) * 2000-10-10 2005-01-27 Robert Bosch Gmbh Fuel injector
DE10050752B4 (en) * 2000-10-13 2005-06-02 Robert Bosch Gmbh Fuel injection valve with a swirl-generating element
DE10063083A1 (en) * 2000-12-18 2002-08-01 Siemens Ag fuel injector
DE10136186A1 (en) * 2001-07-25 2003-02-06 Bosch Gmbh Robert Valve for controlling liquids, has transition region between second piston and intermediate piston arranged in region with lower pressure than in system pressure region
DE10152253B4 (en) * 2001-10-20 2014-10-09 Robert Bosch Gmbh Valve for controlling fluids
JP4007202B2 (en) 2003-01-23 2007-11-14 株式会社デンソー Sliding structure of shaft member and injector
EP1445476A1 (en) * 2003-02-04 2004-08-11 Siemens VDO Automotive S.p.A. Valve needle and metering device comprising same
DE102005029473A1 (en) * 2005-06-24 2006-12-28 Siemens Ag Fuel injector has servo valve operated by actuator which forms connection between high pressure fuel chamber and sealing chamber
DE102009054441A1 (en) * 2009-11-25 2011-06-30 L'Orange GmbH, 70435 Fuel injection nozzle for internal combustion engines
US8690075B2 (en) 2011-11-07 2014-04-08 Caterpillar Inc. Fuel injector with needle control system that includes F, A, Z and E orifices
DE102016211446A1 (en) * 2016-06-27 2017-12-28 Robert Bosch Gmbh Method for producing an injector for injecting fuel

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3115304A (en) * 1961-10-11 1963-12-24 Gen Motors Corp Fuel injector pump with hydraulically controlled injection valve
US4566416A (en) * 1981-07-31 1986-01-28 Stanadyne, Inc. Accumulator nozzle fuel injection system
EP0318743A1 (en) * 1987-12-02 1989-06-07 Ganser-Hydromag Electronically controlled fuel injector
DE4415926A1 (en) * 1993-05-06 1994-11-10 Nippon Denso Co Fuel injector
EP0647780A2 (en) * 1993-10-08 1995-04-12 Lucas Industries Public Limited Company Fuel injection nozzle
US5826802A (en) * 1995-11-17 1998-10-27 Caterpillar Inc. Damped check valve for fluid injector system
JPH10318098A (en) * 1997-05-16 1998-12-02 Unisia Jecs Corp Fuel injector
DE19827218A1 (en) * 1997-06-20 1998-12-24 Toyota Motor Co Ltd Fuel injection valve for internal combustion engine
US5860597A (en) * 1997-03-24 1999-01-19 Cummins Engine Company, Inc. Injection rate shaping nozzle assembly for a fuel injector

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2757317B2 (en) * 1989-11-09 1998-05-25 ヤマハ発動機株式会社 High pressure fuel injection device
US5467757A (en) * 1993-08-20 1995-11-21 Toyota Jidosha Kabushiki Kaisha Compression-ignition type engine and combustion method of same
DE69719461T2 (en) * 1996-11-21 2004-01-15 Denso Corp Storage fuel injector for internal combustion engines

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3115304A (en) * 1961-10-11 1963-12-24 Gen Motors Corp Fuel injector pump with hydraulically controlled injection valve
US4566416A (en) * 1981-07-31 1986-01-28 Stanadyne, Inc. Accumulator nozzle fuel injection system
EP0318743A1 (en) * 1987-12-02 1989-06-07 Ganser-Hydromag Electronically controlled fuel injector
DE4415926A1 (en) * 1993-05-06 1994-11-10 Nippon Denso Co Fuel injector
EP0647780A2 (en) * 1993-10-08 1995-04-12 Lucas Industries Public Limited Company Fuel injection nozzle
US5826802A (en) * 1995-11-17 1998-10-27 Caterpillar Inc. Damped check valve for fluid injector system
US5860597A (en) * 1997-03-24 1999-01-19 Cummins Engine Company, Inc. Injection rate shaping nozzle assembly for a fuel injector
JPH10318098A (en) * 1997-05-16 1998-12-02 Unisia Jecs Corp Fuel injector
DE19827218A1 (en) * 1997-06-20 1998-12-24 Toyota Motor Co Ltd Fuel injection valve for internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 03 31 March 1999 (1999-03-31) *

Also Published As

Publication number Publication date
DE19904720A1 (en) 2000-08-17
DE19904720C2 (en) 2003-01-16
EP1026393A2 (en) 2000-08-09

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