EP1555429A1 - Buse d'injection de carburant - Google Patents

Buse d'injection de carburant Download PDF

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Publication number
EP1555429A1
EP1555429A1 EP05000209A EP05000209A EP1555429A1 EP 1555429 A1 EP1555429 A1 EP 1555429A1 EP 05000209 A EP05000209 A EP 05000209A EP 05000209 A EP05000209 A EP 05000209A EP 1555429 A1 EP1555429 A1 EP 1555429A1
Authority
EP
European Patent Office
Prior art keywords
fuel injection
injection nozzle
nozzle according
nozzle needle
pressure
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
EP05000209A
Other languages
German (de)
English (en)
Other versions
EP1555429B1 (fr
Inventor
Stephan Haas
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.)
MAN Energy Solutions SE
Original Assignee
MAN B&W Diesel 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 MAN B&W Diesel GmbH filed Critical MAN B&W Diesel GmbH
Publication of EP1555429A1 publication Critical patent/EP1555429A1/fr
Application granted granted Critical
Publication of EP1555429B1 publication Critical patent/EP1555429B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F02M61/161—Means for adjusting injection-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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • 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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • F02M45/08—Injectors peculiar thereto
    • 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
    • F02M61/06—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 being furnished at seated ends with pintle or plug shaped extensions
    • 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

Definitions

  • the invention relates to a fuel injection nozzle with a housing, in the one under the action of a spring by investing in a Seat held in closed position, by the pressure of the injected Fuel controllable nozzle needle is arranged.
  • the invention is based on the object, a simple and space-saving constructed fuel injector, which in two various operating positions for full and partial load can be transferred and their use is not limited to a specific injection system is.
  • this is achieved in that one for the transfer in one of two different axial positions by means of a pressure fluid acted upon or depressurized control piston is provided, the opening of the nozzle needle for Limited release of one or more spray hole rows.
  • the nozzle needle facing away from the end face of Control piston in a the opening path of the nozzle needle to release a spray hole row limiting partial load position pressurized and in another, all arranged one above the other Spray hole rows releasing full load position depressurized.
  • the spool in part load position with its the nozzle needle facing end face on a housing-fixed stop.
  • the control piston in the full load position with one of Nozzle needle facing away from the end face on another housing Stop. This results in precisely defined operating positions for the two load ranges.
  • the injection nozzle according to FIG. 1 has one composed of three parts 1, 2, 3 Housing on.
  • a nozzle needle 4th guided axially displaceable, the one section 5 with enlarged Diameter.
  • the section 5 projects into a pressure chamber 6 into which the fuel to be injected via a line 7 is supplied becomes.
  • the lower end of the valve needle 4 is under the effect a spring 8 on a seat 9 at.
  • a control pin 10 At this end of the valve needle 4 is a control pin 10, a naval personnel, or a weighted.
  • In the navalraum 11 opens a first row of Spray holes 12.
  • the lower end of the control pin 10 protrudes sealingly in a furtherfordraum 13 into the at least another series of Spritzlöchem 14 opens.
  • the upper end face 15 of the two-part nozzle needle. 4 is in the rest position shown in Figure 1 in one Distance h1 from the lower end face 16 of the housing part 2 in Axes guided control piston 17.
  • This is the control piston 17 with the edge of its lower end face 16 to an annular housing-fixed stop 18 at.
  • the control piston 17 passes through an annular chamber 19, which via a line 20th is in communication with the fuel line leading 7. From the chamber 19 leads a line 21 in the control piston 17 to a Pressure chamber 22 above the upper end surface 23 of the control piston 17th
  • the pressure chamber 22 is laterally through the housing part 2 and above limited by a plate-shaped stop 24.
  • the stop 24 has a bore 25 which can be closed by a closure member is.
  • the closure member has a closure ball 26 on, by means of a control rod 27 in the closed position preserved is.
  • the control rod 27 is a function of the load condition of the engine adjustable so that in the rest position and in the partial load position the closure ball 26 is held in the closed position and in the full load position releases the closure ball, so that the Fuel can flow through a line 28. It is, however also differently constructed, depending on the engine power up and zulite closure organs used.
  • FIG. 2 The arrangement according to FIG. 2 is basically structured as well the only of Figure 1. Only here is the chamber 19 to a line 30 connected by means of a pump 31 lubricating oil Pressure is supplied. This lubricating oil then passes over the line 21 in the pressure chamber 22. The other function is consistent with the Arrangement according to Figure 1 match. There is also the possibility the pressure chamber 22 with a pressurized fluid from a separate Fluid circuit to apply.

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)
EP05000209A 2004-01-16 2005-01-07 Buse d'injection de carburant Not-in-force EP1555429B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004002286 2004-01-16
DE102004002286A DE102004002286A1 (de) 2004-01-16 2004-01-16 Kraftstoffeinspritzdüse

Publications (2)

Publication Number Publication Date
EP1555429A1 true EP1555429A1 (fr) 2005-07-20
EP1555429B1 EP1555429B1 (fr) 2009-08-12

Family

ID=34609581

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05000209A Not-in-force EP1555429B1 (fr) 2004-01-16 2005-01-07 Buse d'injection de carburant

Country Status (6)

Country Link
US (1) US20050230501A1 (fr)
EP (1) EP1555429B1 (fr)
JP (1) JP2005201274A (fr)
KR (1) KR20050075719A (fr)
CN (1) CN1641207B (fr)
DE (2) DE102004002286A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008014251A1 (de) * 2008-03-13 2009-09-17 Man Diesel Se Einspritzventil für Direkteinspritzung
EP2199590A1 (fr) * 2008-12-09 2010-06-23 Robert Bosch GmbH Injecteur de carburant

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008061400A1 (de) 2008-12-10 2010-06-17 Man Diesel Se Kraftstoff-Einspritzventil für eine Brennkraftmaschine
JP5120293B2 (ja) * 2009-02-20 2013-01-16 株式会社デンソー 燃料噴射弁
CN103615344A (zh) * 2013-11-29 2014-03-05 哈尔滨工程大学 柴油机相继喷油喷油器
NL1041770B1 (en) * 2016-03-18 2017-10-03 Cereus Tech B V Improved fuel injection devices.
DE102016215637A1 (de) * 2016-08-19 2018-02-22 Robert Bosch Gmbh Kraftstoffeinspritzdüse
CN109869252A (zh) * 2019-03-15 2019-06-11 江苏大学 一种高压共轨柴油机的高频响应喷油器

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3818862A1 (de) * 1987-06-19 1988-12-29 Volkswagen Ag Kraftstoffeinspritzduese
DE4123721C1 (en) * 1991-07-17 1992-06-17 Steyr-Daimler-Puch Ag, Wien, At Fuel injection system with pump and nozzle units - has laterally coupled pump duct to chamber in piston bush
JPH11351105A (ja) * 1998-06-05 1999-12-21 Denso Corp 内燃機関用燃料噴射弁
EP1041272A2 (fr) * 1999-04-01 2000-10-04 Delphi Technologies, Inc. Injecteur de combustible
DE10100512A1 (de) * 2000-02-07 2001-08-09 Bosch Gmbh Robert Einspritzdüse
EP1249600A2 (fr) * 2001-04-11 2002-10-16 Toyota Jidosha Kabushiki Kaisha Procédé et dispositif de commande de l'injection
EP1283336A2 (fr) * 2001-08-06 2003-02-12 Toyota Jidosha Kabushiki Kaisha Moteur à combustion interne
US20030094517A1 (en) * 2001-11-16 2003-05-22 Masaaki Kato Fuel injection nozzle

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2655793A1 (de) * 1976-12-09 1978-06-22 Maschf Augsburg Nuernberg Ag Gesteuerte mehrloch-einspritzduese
DE2711393A1 (de) * 1977-03-16 1978-09-21 Bosch Gmbh Robert Kraftstoffeinspritzduese
JPS6382066A (ja) * 1986-09-25 1988-04-12 Sony Corp 電子ズ−ム機能付き撮像装置
DE4408245A1 (de) * 1994-03-11 1995-09-14 Bosch Gmbh Robert Einspritzdüse für Brennkraftmaschinen
JPH10281038A (ja) * 1997-04-01 1998-10-20 Denso Corp 燃料噴射弁
GB9811649D0 (en) * 1998-05-29 1998-07-29 Lucas Ind Plc Fuel injector
DE19939448A1 (de) * 1999-08-20 2001-03-01 Bosch Gmbh Robert Injektor
DE19946906A1 (de) * 1999-09-30 2001-04-05 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen
DE19947196A1 (de) * 1999-10-01 2001-04-05 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
JP4239332B2 (ja) * 1999-11-29 2009-03-18 株式会社豊田中央研究所 内燃機関の燃料噴射装置
DE10031582A1 (de) * 2000-06-29 2002-01-17 Bosch Gmbh Robert Druckgesteuerter Injektor mit gesteuerter Düsennadel
DE10033426B4 (de) * 2000-07-10 2004-10-14 Robert Bosch Gmbh Injektor/Düsennadel-Kombination mit steuerraumseitiger Kopplung
WO2002044427A2 (fr) * 2000-10-27 2002-06-06 President And Fellows Of Harvard College Systemes d'analyse a partir de double et triple lectures
DE10055268A1 (de) * 2000-11-08 2002-05-23 Bosch Gmbh Robert Druckgesteuerter Injektor eines Hochdruckspeichereinspritzsystems
US6725838B2 (en) * 2001-10-09 2004-04-27 Caterpillar Inc Fuel injector having dual mode capabilities and engine using same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3818862A1 (de) * 1987-06-19 1988-12-29 Volkswagen Ag Kraftstoffeinspritzduese
DE4123721C1 (en) * 1991-07-17 1992-06-17 Steyr-Daimler-Puch Ag, Wien, At Fuel injection system with pump and nozzle units - has laterally coupled pump duct to chamber in piston bush
JPH11351105A (ja) * 1998-06-05 1999-12-21 Denso Corp 内燃機関用燃料噴射弁
EP1041272A2 (fr) * 1999-04-01 2000-10-04 Delphi Technologies, Inc. Injecteur de combustible
DE10100512A1 (de) * 2000-02-07 2001-08-09 Bosch Gmbh Robert Einspritzdüse
EP1249600A2 (fr) * 2001-04-11 2002-10-16 Toyota Jidosha Kabushiki Kaisha Procédé et dispositif de commande de l'injection
EP1283336A2 (fr) * 2001-08-06 2003-02-12 Toyota Jidosha Kabushiki Kaisha Moteur à combustion interne
US20030094517A1 (en) * 2001-11-16 2003-05-22 Masaaki Kato Fuel injection nozzle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 03 30 March 2000 (2000-03-30) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008014251A1 (de) * 2008-03-13 2009-09-17 Man Diesel Se Einspritzventil für Direkteinspritzung
EP2199590A1 (fr) * 2008-12-09 2010-06-23 Robert Bosch GmbH Injecteur de carburant

Also Published As

Publication number Publication date
KR20050075719A (ko) 2005-07-21
DE502005007871D1 (de) 2009-09-24
DE102004002286A1 (de) 2005-08-11
CN1641207A (zh) 2005-07-20
US20050230501A1 (en) 2005-10-20
CN1641207B (zh) 2010-06-23
JP2005201274A (ja) 2005-07-28
EP1555429B1 (fr) 2009-08-12

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