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WO2005064150A1 - Soupape d'injection de carburant - Google Patents

Soupape d'injection de carburant Download PDF

Info

Publication number
WO2005064150A1
WO2005064150A1 PCT/EP2004/053024 EP2004053024W WO2005064150A1 WO 2005064150 A1 WO2005064150 A1 WO 2005064150A1 EP 2004053024 W EP2004053024 W EP 2004053024W WO 2005064150 A1 WO2005064150 A1 WO 2005064150A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel injection
injection valve
spray opening
section
valve
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
PCT/EP2004/053024
Other languages
German (de)
English (en)
Inventor
Volker Holzgrefe
Stefan Arndt
Gernot Wuerfel
Manfred Stuerz
Axel Storch
Guido Pilgram
Juergen Raimann
Detlef Nowak
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
Priority to EP04817563A priority Critical patent/EP1702156B1/fr
Priority to DE502004012167T priority patent/DE502004012167D1/de
Publication of WO2005064150A1 publication Critical patent/WO2005064150A1/fr
Anticipated expiration legal-status Critical
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
    • 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
    • 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
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • F02M51/0675—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the valve body having cylindrical guiding or metering portions, e.g. 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
    • 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
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0685—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature and the valve being allowed to move relatively to each other or not being attached to each other
    • 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
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • 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
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • F02M61/1833—Discharge orifices having changing cross sections, e.g. being divergent

Definitions

  • the invention relates to a fuel injector according to the preamble of the main claim.
  • Spray opening opens out on a flat surface surrounding the spray opening.
  • the spray opening opens out on an outer surface of a circular cone which tapers conically in cross section, the outer surfaces running above and below the spray opening having an angle of 180 ° to one another.
  • a disadvantage of the fuel injection valves known from the prior art is, in particular, that the flat, non-projecting arrangement of the spray opening in a flat surface or between two surfaces with a cross-section in a line with one another for the prevention of precipitation of fuel sufficient gas flow cannot be achieved.
  • the formation of combustion residues in and around the Spray opening is increased.
  • the combustion process cannot be optimally controlled over the service life of the fuel injector.
  • the consumption and the pollutant development are increased.
  • the fuel injector according to the invention with the characterizing features of the main claim has the advantage that, due to the exposed position of the outlet of the spray opening, the strength of the gas movements is sufficient to keep the surroundings of the outlet free of deposits that would adversely affect the injection process.
  • the spray opening opens out in the region of the transition from a first surface to a second surface, the two surfaces being arranged with respect to one another with an outside angle of more than 180 °. Due to the conical sections produced in this way, the fuel injector can be produced by simple and inexpensive method steps.
  • the spray opening advantageously widens conically outwards.
  • a fuel flow detached from the wall of the spray opening at the entrance of the spray opening is thereby reliably maintained in the spray opening.
  • the fuel flow, detached from the walls, for example in the form of a vortex zone or cavitation bubble prevents the walls of the spray opening from being wetted with fuel and, by means of hydrodynamic transverse forces, causes the spray opening to self-clean during the injection process. Since this detached flow is maintained over the entire length of the spray opening, the spray opening can become do not form deposits.
  • the spray opening can be made longer without disadvantages, as a result of which the stability of the spray-side end of the fuel injector is increased.
  • the second section can be formed by a circumferential groove.
  • the second section can be produced simply and inexpensively, in particular in the case of fuel injection valves with a plurality of spray openings.
  • FIG. 1 shows a schematic section through an example of a fuel injector of the generic type
  • FIG. 2 shows a schematic section through a first exemplary embodiment of a fuel injection valve according to the invention in the region of the spray opening
  • FIG. 3 shows a schematic section through a second exemplary embodiment of a fuel injection valve according to the invention in the region of the spray opening
  • 4 shows a schematic section through a third exemplary embodiment of a fuel injection valve according to the invention in the region of the spray opening
  • FIG. 5 shows a schematic representation of a fourth exemplary embodiment of a fuel injection valve according to the invention in the region of the spray opening and
  • FIG. 6 shows a schematic section through a fifth exemplary embodiment of a fuel injection valve according to the invention in the region of the spray opening.
  • FIGS. 2 to 6 Before preferred exemplary embodiments of the invention according to the invention are described in more detail with reference to FIGS. 2 to 6, a generic fuel injector with respect to its essential components will first be briefly explained with reference to FIG. 1 for better understanding of the invention.
  • a first exemplary embodiment of a generic fuel injector 1 shown in FIG. 1 is designed in the form of a fuel injector 1 for fuel injection systems of mixture-compressing, spark-ignition internal combustion engines.
  • the fuel injection valve 1 is particularly suitable for injecting fuel directly into a combustion chamber (not shown) of an internal combustion engine with a jet-guided combustion process.
  • the fuel injection valve 1 consists of a nozzle body 2, in which a valve needle 3 is arranged.
  • the valve needle 3 has a valve closing body 4 on the spray side, which cooperates with a valve seat surface 6 arranged on a valve seat body 5 to form a sealing seat.
  • the fuel injection valve 1 is a fuel injection valve 1 that opens inwards and has a spray opening 7.
  • the nozzle body 2 is sealed by a seal 8 against an outer pole 9 of a solenoid 10.
  • the magnet coil 10 is encapsulated in a coil housing 11 and wound on a coil carrier 12 which bears against an inner pole 13 of the magnet coil 10.
  • the inner pole 13 and the outer pole 9 are separated from one another by a distance 26 and connected to one another by a non-ferromagnetic connecting component 29.
  • the magnetic coil 10 is excited via an electrical line 19 by an electrical current that can be supplied via an electrical plug contact 17.
  • the plug contact 17 is surrounded by a plastic sheath 18, which can be molded onto the inner pole 13.
  • valve needle 3 is guided in a valve needle guide 14, which is disc-shaped.
  • a paired adjusting disk 15 is used for stroke adjustment.
  • the armature 20 is located on the other side of the adjusting disk 15. This armature is connected via a first flange 21 to the valve needle 3, which is connected to the first flange 21 by a weld seam 22.
  • a helical return spring 23 is supported on the first flange 21 and, in the present design of the fuel injection valve 1, is preloaded by a sleeve 24.
  • Fuel channels 30, 31 and 32 run in the valve needle guide 14, in the armature 20 and on a guide element 36.
  • the fuel is supplied via a central fuel supply 16 and filtered by a filter element 25.
  • the fuel injector 1 is through a rubber ring 28 sealed against a fuel rail, not shown, and sealed by a seal 37 against a cylinder head, not shown.
  • An annular damping element 33 which consists of an elastomer material, is arranged on the spray-side side of the armature 20. It rests on a second flange 34 which is integrally connected to the valve needle 3 via a weld seam 35.
  • the armature 20 In the idle state of the fuel injection valve 1, the armature 20 is acted upon by the return spring 23 against its stroke direction in such a way that the valve closing body 4 is held in sealing contact with the valve seat surface 6.
  • the magnetic coil 10 When the magnetic coil 10 is excited, it builds up a magnetic field which moves the armature 20 against the spring force of the return spring 23 in the stroke direction, the stroke being predetermined by a working gap 27 which is in the rest position between the inner pole 12 and the armature 20.
  • the armature 20 also takes the first flange 21, which is welded to the valve needle 3, in the lifting direction.
  • the valve closing body 4 connected to the valve needle 3 lifts off the valve seat surface 6, and the fuel supplied under pressure is sprayed through the spray opening 7 into the combustion chamber (not shown).
  • the armature 20 drops from the inner pole 13 after the magnetic field has been sufficiently reduced by the pressure of the return spring 23, as a result of which the first flange 21, which is connected to the valve needle 3, moves counter to the stroke direction.
  • the valve needle 3 is thereby moved in the same direction, as a result of which the valve-closure member 4 is seated on the valve seat surface 6 and the fuel injector 1 is closed.
  • the fuel injection valve 1 has a central axis 47, to which in this exemplary embodiment in particular the valve needle 3, the valve closing body 4 and the nozzle body 2 are arranged coaxially.
  • the nozzle body 2 of the fuel injection valve 1 that opens inwards in this exemplary embodiment is formed in one piece with the valve seat body 5.
  • the valve seat body 5 is configured in the shape of a circular cone on the outside and has at least one circumferential first surface
  • Spray opening 7 opens at the transition from the first surface 39 to the second surface 40 at an exit point 46 from the valve seat body 5.
  • the first surface 39 has an outside angle 41 of more than 180 °, for example 210 °, running outside the valve seat body 5 relative to the second surface 40.
  • the exit point 46 and the immediate area around the exit point 46 are relative to all the outer surfaces thereof surrounding it
  • FIG. 3 shows a schematic section through a second exemplary embodiment of the fuel injection valve 1 according to the invention in the region of the spray opening 7, similar to the first exemplary embodiment from FIG. 2.
  • the diameter of the spray opening 7 widens conically in the spray direction.
  • Fig. 4 shows a schematic section through a third embodiment of the invention
  • the diameter of the spray opening 7 is widened by a step 42 in the spray direction.
  • the step 42 divides the course of the spray opening 7 into an upstream first section 44 and a second section 45 thereof in the spray direction.
  • the second section 45 is, for example, cylindrical and is produced by drilling, the two sections 44, 45 being arranged coaxially to one another in this exemplary embodiment.
  • the second section 45 can also be realized by a circumferential groove 43, which is shown in more detail in FIG. 5, in which case the cross sections of the two sections 44, 45, as shown in FIG. 4, are also arranged coaxially to one another.
  • Fig. 5 shows a schematic representation of a fourth embodiment of the invention
  • the valve seat body 5 has a plurality of spray openings 7.
  • the second section 45 or the step 42 is formed by the groove 43 which radially surrounds the valve seat body 5 at the level of the spray openings 7.
  • the two spray openings 7 shown each have a first section 44 with different diameters. The diameter can be as large as the height of the groove 43 or less.
  • FIG. 6 shows a fifth exemplary embodiment of a fuel injection valve 1 according to the invention.
  • the nozzle body 2 of the fuel injection valve 1 which opens outwards in this exemplary embodiment is formed in one piece with the valve seat body 5.
  • the second surface 40 is arranged on the outside of the valve closing body 4.
  • the Valve closing body 4 delimits the spray opening 7 with the valve seat body 5, the spray opening 7 expanding conically downstream of the sealing seat and the spray opening 7 taking on the shape of a circumferential annular gap in the open state.
  • the invention is not restricted to the exemplary embodiments shown.
  • the features of the exemplary embodiments can be combined with one another in any manner.

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

L'invention concerne une soupape d'injection de carburant (1) présentant un actionneur en liaison active avec un pointeau (3) qui comporte, côté injection, un obturateur (4) coopérant avec une surface de siège de soupape (6) pour former un siège d'étanchéité. Un orifice d'injection (7) débouche dans une zone de sortie (46) faisant saillie, par rapport à tous les côtés de la surface qui l'entoure directement et de laquelle elle débouche.
PCT/EP2004/053024 2003-12-29 2004-11-19 Soupape d'injection de carburant Ceased WO2005064150A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04817563A EP1702156B1 (fr) 2003-12-29 2004-11-19 Soupape d'injection de carburant
DE502004012167T DE502004012167D1 (de) 2003-12-29 2004-11-19 Brennstoffeinspritzventil

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003161762 DE10361762A1 (de) 2003-12-29 2003-12-29 Brennstoffeinspritzventil
DE10361762.0 2003-12-29

Publications (1)

Publication Number Publication Date
WO2005064150A1 true WO2005064150A1 (fr) 2005-07-14

Family

ID=34706698

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/053024 Ceased WO2005064150A1 (fr) 2003-12-29 2004-11-19 Soupape d'injection de carburant

Country Status (3)

Country Link
EP (1) EP1702156B1 (fr)
DE (2) DE10361762A1 (fr)
WO (1) WO2005064150A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012167990A1 (fr) * 2011-06-09 2012-12-13 Robert Bosch Gmbh Soupape d'injection pour moteurs à combustion interne
WO2015055632A1 (fr) * 2013-10-15 2015-04-23 Robert Bosch Gmbh Dispositif d'injection

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019220187A1 (de) * 2019-12-19 2021-06-24 Vitesco Technologies GmbH Kraftstoffinjektor für eine Brennkraftmaschine, sowie Brennkraftmaschine mit Kraftstoffinjektor

Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB265299A (en) * 1925-11-06 1927-02-07 F A Hughes & Company Ltd Improvements in or relating to cocks and valves
FR987394A (fr) * 1948-06-04 1951-08-13 Aktiesellskabet Burmeister & W Soupape d'injection de carburant pour moteurs à combustion interne
GB1088666A (en) * 1964-03-09 1967-10-25 Lister & Co Ltd R A Improvements in or relating to fuel injectors for internal combustion engines
US3612407A (en) * 1968-09-20 1971-10-12 Komatsu Mfg Co Ltd Multiorifice-type airless injection nozzle
US4069978A (en) * 1975-12-20 1978-01-24 Klockner-Humboldt-Deutz Aktiengesellschaft Fuel injection valve
DE2837606A1 (de) * 1978-08-29 1980-03-06 Daimler Benz Ag Mehrstrahliges einspritzventil
FR2528915A1 (fr) * 1982-06-18 1983-12-23 Semt Injecteur de combustible et moteur a combustion interne equipe dudit injecteur
JPS58222971A (ja) * 1982-06-22 1983-12-24 Mitsubishi Heavy Ind Ltd 燃料噴射弁
JPS60142051A (ja) * 1983-12-28 1985-07-27 Toyota Motor Corp 内燃機関の燃料噴射弁
EP0328277A1 (fr) * 1988-02-05 1989-08-16 Lucas Industries Public Limited Company Injecteur de combustible
EP0370659A1 (fr) * 1988-11-19 1990-05-30 Lucas Industries Public Limited Company Buse d'injection de combustible
US4934599A (en) * 1987-10-07 1990-06-19 Honda Giken Kogyo Kabushiki Kaisha Fuel injection nozzle for two-stage fuel injection
WO1993004277A1 (fr) * 1991-08-15 1993-03-04 Yaroslavsky Zavod Toplivnoi Apparatury Procede et injecteur d'alimentation en carburant pour moteur a combustion interne
JPH05231273A (ja) * 1992-02-19 1993-09-07 Hino Motors Ltd 燃料噴射ノズル及びその製造方法
US5353992A (en) * 1993-08-30 1994-10-11 Chrysler Corporation Multi-hole injector nozzle tip with low hydraulic plume penetration and large cloud-forming properties
DE19950760A1 (de) 1999-10-21 2001-04-26 Bosch Gmbh Robert Brennstoffeinspritzventil
EP1208298A1 (fr) * 1999-08-11 2002-05-29 Robert Bosch Gmbh Soupape d'injection de carburant et procede de production d'orifices de sortie dans les soupapes
DE10116714A1 (de) * 2001-04-04 2002-10-10 Volkswagen Ag Kraftstoffeinspritzventil für Brennkraftmaschinen, vorzugsweise für hohe Strahlgeschwindigkeiten
WO2002090764A1 (fr) * 2001-05-04 2002-11-14 Edward Jakubowski Buse a trous multiples
DE10122350A1 (de) * 2001-05-09 2002-11-21 Bosch Gmbh Robert Brennstoffeinspritzsystem
US20030116656A1 (en) * 1999-12-29 2003-06-26 Guenther Hohl Fuel injection valve

Patent Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB265299A (en) * 1925-11-06 1927-02-07 F A Hughes & Company Ltd Improvements in or relating to cocks and valves
FR987394A (fr) * 1948-06-04 1951-08-13 Aktiesellskabet Burmeister & W Soupape d'injection de carburant pour moteurs à combustion interne
GB1088666A (en) * 1964-03-09 1967-10-25 Lister & Co Ltd R A Improvements in or relating to fuel injectors for internal combustion engines
US3612407A (en) * 1968-09-20 1971-10-12 Komatsu Mfg Co Ltd Multiorifice-type airless injection nozzle
US4069978A (en) * 1975-12-20 1978-01-24 Klockner-Humboldt-Deutz Aktiengesellschaft Fuel injection valve
DE2837606A1 (de) * 1978-08-29 1980-03-06 Daimler Benz Ag Mehrstrahliges einspritzventil
FR2528915A1 (fr) * 1982-06-18 1983-12-23 Semt Injecteur de combustible et moteur a combustion interne equipe dudit injecteur
JPS58222971A (ja) * 1982-06-22 1983-12-24 Mitsubishi Heavy Ind Ltd 燃料噴射弁
JPS60142051A (ja) * 1983-12-28 1985-07-27 Toyota Motor Corp 内燃機関の燃料噴射弁
US4934599A (en) * 1987-10-07 1990-06-19 Honda Giken Kogyo Kabushiki Kaisha Fuel injection nozzle for two-stage fuel injection
EP0328277A1 (fr) * 1988-02-05 1989-08-16 Lucas Industries Public Limited Company Injecteur de combustible
EP0370659A1 (fr) * 1988-11-19 1990-05-30 Lucas Industries Public Limited Company Buse d'injection de combustible
WO1993004277A1 (fr) * 1991-08-15 1993-03-04 Yaroslavsky Zavod Toplivnoi Apparatury Procede et injecteur d'alimentation en carburant pour moteur a combustion interne
JPH05231273A (ja) * 1992-02-19 1993-09-07 Hino Motors Ltd 燃料噴射ノズル及びその製造方法
US5353992A (en) * 1993-08-30 1994-10-11 Chrysler Corporation Multi-hole injector nozzle tip with low hydraulic plume penetration and large cloud-forming properties
EP1208298A1 (fr) * 1999-08-11 2002-05-29 Robert Bosch Gmbh Soupape d'injection de carburant et procede de production d'orifices de sortie dans les soupapes
DE19950760A1 (de) 1999-10-21 2001-04-26 Bosch Gmbh Robert Brennstoffeinspritzventil
US20030116656A1 (en) * 1999-12-29 2003-06-26 Guenther Hohl Fuel injection valve
DE10116714A1 (de) * 2001-04-04 2002-10-10 Volkswagen Ag Kraftstoffeinspritzventil für Brennkraftmaschinen, vorzugsweise für hohe Strahlgeschwindigkeiten
WO2002090764A1 (fr) * 2001-05-04 2002-11-14 Edward Jakubowski Buse a trous multiples
DE10122350A1 (de) * 2001-05-09 2002-11-21 Bosch Gmbh Robert Brennstoffeinspritzsystem

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 076 (M - 288) 9 April 1984 (1984-04-09) *
PATENT ABSTRACTS OF JAPAN vol. 009, no. 307 (M - 435) 4 December 1985 (1985-12-04) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 686 (M - 1529) 15 December 1993 (1993-12-15) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012167990A1 (fr) * 2011-06-09 2012-12-13 Robert Bosch Gmbh Soupape d'injection pour moteurs à combustion interne
CN103582753A (zh) * 2011-06-09 2014-02-12 罗伯特·博世有限公司 用于内燃机的喷射阀
WO2015055632A1 (fr) * 2013-10-15 2015-04-23 Robert Bosch Gmbh Dispositif d'injection

Also Published As

Publication number Publication date
DE10361762A1 (de) 2005-07-28
EP1702156B1 (fr) 2011-02-02
DE502004012167D1 (de) 2011-03-17
EP1702156A1 (fr) 2006-09-20

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