EP1454057B1 - Ventil zum steuern von flüssigkeiten - Google Patents

Ventil zum steuern von flüssigkeiten Download PDF

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Publication number
EP1454057B1
EP1454057B1 EP02781154A EP02781154A EP1454057B1 EP 1454057 B1 EP1454057 B1 EP 1454057B1 EP 02781154 A EP02781154 A EP 02781154A EP 02781154 A EP02781154 A EP 02781154A EP 1454057 B1 EP1454057 B1 EP 1454057B1
Authority
EP
European Patent Office
Prior art keywords
valve
plastic ring
thread
nut
components
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.)
Expired - Lifetime
Application number
EP02781154A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1454057A1 (de
Inventor
Dieter Kienzler
Dietmar Uhlmann
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 EP1454057A1 publication Critical patent/EP1454057A1/de
Application granted granted Critical
Publication of EP1454057B1 publication Critical patent/EP1454057B1/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
    • 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
    • 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
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • 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
    • F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
    • 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
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8076—Fuel injection apparatus manufacture, repair or assembly involving threaded members
    • 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
    • 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

Definitions

  • the present invention relates to a valve for controlling of liquids according to the preamble of the claim 1.
  • the present invention relates to a Injection valve for injecting fuel into a Combustion chamber of an internal combustion engine.
  • Injectors for injecting fuel into one Combustion chamber of an internal combustion engine are in different configurations known. Such Injectors, for example, in conjunction with Used in storage fuel injection systems where fuel is stored in a memory space high pressure to a pressure-constant injection of the fuel enable.
  • Such injectors are made several components, e.g. a holding body, a Valve plate, a throttle plate and a nozzle body, which in the axial direction of the valve in succession are arranged. The individual components of the valve are doing so by means of a nozzle lock nut against each other braced.
  • storage injection systems result Leakage problems leading to leakage of fuel at Can lead valve.
  • the valve according to the invention for controlling fluids has the advantage that it is a safe and easy sealing allows, taking special is inexpensive to provide.
  • no geometric weakening on the components of the valve which an additional could cause notch effect on the valve.
  • the sealing element is a plastic ring educated.
  • a recess on the Clamping nut designed to accommodate the plastic ring.
  • this recess at the upper end of provided clamping nut.
  • the plastic ring In order to secure the position of the plastic ring on the To allow clamping nut, has the plastic ring preferably at least one protruding area, which in an appropriately formed additional Recess engages the clamping nut. You can do this the clamping nut, for example, one or more holes or one or more grooves are provided. Farther can at the extreme end of the clamping nut after be provided inside directed flanging.
  • a groove is provided between two components, about which the leakage in a low pressure region of Valve can be removed.
  • the present invention is particularly useful in Fuel injection valves for accumulator injection systems, such as. Common rail injection systems, used. there is due to the seal between the clamping nut and the Components of the valve, a low pressure region of the valve sealed against the outside.
  • the invention Sealing elements are designed such that after a successful disassembly of the valve a simple re-assembly together with sealing element is possible.
  • valve 1 with a sealing element according to a non-invention Example of the present invention.
  • FIG. 1 shows a fuel injection valve 1, which essentially consists of several, in the axial direction X-X the valve consists of successively arranged components.
  • the components of the valve 1 are a holding body 2, a valve plate 3, a throttle plate 4 and a Nozzle body 5. These components of the valve are by means of a nozzle retaining nut 6 braced against each other. For this has the nozzle retaining nut 6 at its upper end portion Internal thread 10 (see Figure 2), with which they on a External thread 9 of the holder body 2 is screwed.
  • a sealing element in the form of a Coating 8 arranged between the Internal thread 10 of the nozzle lock nut 6 and the external thread 9 of the holding body 2, a sealing element in the form of a Coating 8 arranged.
  • the coating 8 can either on the internal thread 10 or the external thread 9 or on be applied to both threads.
  • the coating 8 runs around the entire circumference of the thread. Through this coating 8 according to the invention becomes a safe Sealing a low pressure region of the valve 1 against the external environment is reached.
  • the coating 8 is in the Essentially at the upper end region of the nozzle retaining nut 6 formed and has a height H, which is between 1/3 and 1/2 the height of the thread in the axial direction of the Valve is enough.
  • the coating 8 can easily before Mounting on one or both threads are applied, so that the seal after unscrewing the Nozzle lock nut 6 is present on the holding body 2.
  • the second embodiment as a sealing element Plastic ring 11 used.
  • the Plastic ring in mounted condition i. at screwed nozzle retaining nut 6 on the holder body. 2 shown, and in Figure 4, the plastic ring 11 is present the assembly shown.
  • the plastic ring 11 in the Mounting deformed so that it is close to the External thread 9 on the holding body 2 applies. This will be a adequate sealing between the low pressure area of the Valve and the outside reached.
  • the plastic ring 11 has such a height that it is about 1/3 of the covered in engaging threads. Consequently forms the sealing element in the second embodiment itself a part of the thread, so that a simple and cost-effective sealing is achievable.
  • the seal results when screwing the nozzle retaining nut on the holding body 2 automatically.
  • thread on Holding body 2 is hereby preferably a M17x0.75 thread used.
  • the plastic ring 11 is in one provided at the end of the nozzle retaining nut 6 Recess 12 is arranged.
  • FIGs 5 to 7 are different Fixing possibilities for the fixation of the plastic ring 11 shown on the nozzle lock nut 6.
  • two mutually 180 ° opposite Holes 14 are provided, in which two each formed according to the bore 14 above Intervene areas 13.
  • a similar situation fixation of the Plastic rings 11 is shown in Figure 6, in which two opposing projecting portions 13 in two correspondingly formed grooves 15 at the upper end of the Engage nozzle retaining nut 6.
  • the fixation of the in Figure 7 illustrated embodiment consists in a Flare 16, which to the inside of the nozzle lock nut. 6 is directed and fixed the plastic ring 11.
  • FIGS. 8a to 8c a sealing element according to another is shown not inventive example shown.
  • the sealing element according to these Example consists of a shrink tube 17, which on the external thread 9 of the holding body. 2 is applied.
  • the shrink tube 17 is in tense state in which he is on the External thread 9 of the holding body 2 is applied. How out Figure 8a is apparent, the height of the Shrink tube 17 while about half the height of the thread 9.
  • the shrink tube 17 is in mounted state in which he is on the Thread tips of the external thread 9 rests. If now the Nozzle tension nut on the external thread 9 of the holding body.
  • the present invention relates to a valve for Controlling liquids, which several components 2, 3, 4, 5, which in the axial direction X-X of the valve arranged one after the other.
  • At least one of the Components is an external thread 9 is formed with a Internal thread of a clamping nut 6 to come into engagement.
  • the Clamping nut 6 is used to clamp the components of Valve.
  • a sealing element 8, 11, 17 is between the Internal thread 10 of the clamping nut 6 and the external thread. 9 of the component 2 is arranged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Valve Housings (AREA)
EP02781154A 2001-11-10 2002-11-07 Ventil zum steuern von flüssigkeiten Expired - Lifetime EP1454057B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10155413A DE10155413A1 (de) 2001-11-10 2001-11-10 Ventil zum Steuern von Flüssigkeiten
DE10155413 2001-11-10
PCT/DE2002/004119 WO2003042531A1 (de) 2001-11-10 2002-11-07 Ventil zum steuern von flüssigkeiten

Publications (2)

Publication Number Publication Date
EP1454057A1 EP1454057A1 (de) 2004-09-08
EP1454057B1 true EP1454057B1 (de) 2005-09-28

Family

ID=7705411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02781154A Expired - Lifetime EP1454057B1 (de) 2001-11-10 2002-11-07 Ventil zum steuern von flüssigkeiten

Country Status (8)

Country Link
US (1) US6929247B2 (ko)
EP (1) EP1454057B1 (ko)
JP (1) JP4348185B2 (ko)
KR (1) KR100935093B1 (ko)
CN (1) CN100453799C (ko)
DE (2) DE10155413A1 (ko)
ES (1) ES2247390T3 (ko)
WO (1) WO2003042531A1 (ko)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1923471B1 (en) 1999-04-20 2012-12-19 Illumina, Inc. Detection of nucleic acid reactions on bead arrays
WO2005015004A1 (en) * 2003-07-15 2005-02-17 Siemens Aktiengesellschaft A metering device for a pressurised fluid
JP2006207480A (ja) * 2005-01-28 2006-08-10 Bosch Corp 燃料噴射弁
JP4632177B2 (ja) * 2005-12-16 2011-02-16 小柳 司 使い捨て生分解性容器の製造方法
DE102006060657A1 (de) 2006-12-21 2008-07-03 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102006062008A1 (de) 2006-12-29 2008-07-03 Robert Bosch Gmbh Vorrichtung für Hochdruckanwendungen
DE102007002760A1 (de) * 2007-01-18 2008-07-24 Robert Bosch Gmbh Kraftstoffinjektor mit integriertem Druckverstärker
DE102008043347A1 (de) 2008-10-31 2010-05-06 Robert Bosch Gmbh Mess- und Prüfvorrichtung
DE102011076957A1 (de) * 2011-06-06 2012-12-06 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
DE102012208075A1 (de) * 2012-05-15 2013-11-21 Man Diesel & Turbo Se Injektor für eine Kraftstoffversorgungsanlage einer Brennkraftmaschine sowie Kraftstoffversorgungsanlage
DE102016123055A1 (de) * 2016-11-30 2018-05-30 Man Diesel & Turbo Se Kraftstoffversorgungsanlage und Kraftverteilerblock
TR201713993A2 (tr) * 2017-09-21 2019-04-22 Bosch Sanayi Ve Tic A S Bi̇r yakit enjektörü
EP3935276A4 (en) * 2019-04-15 2022-10-19 Cummins, Inc. FUEL INJECTORS WITH RADIALLY ADJUSTABLE NOZZLE HOLES USING KEYWAYS

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1210381A (en) * 1967-01-13 1970-10-28 Bryce Berger Ltd Liquid fuel injection nozzle units for internal combustion engines
US4176822A (en) * 1977-10-31 1979-12-04 Chrysler Corporation Fuel injection system and control valve for multi-cylinder engines
DE3000061C2 (de) * 1980-01-03 1993-10-14 Bosch Gmbh Robert Kraftstoffeinspritzdüse für Brennkraftmaschinen
CN1015402B (zh) * 1986-10-11 1992-02-05 瓦洛海克股份有限公司 在螺纹部分设有密封装置的钢管螺纹接头
DE4317627C2 (de) * 1993-05-27 1996-05-09 Harald Schulz Verfahren zur Instandhaltung eines Ventils für Gas- oder Flüssigkeitsleitungen
CN1045106C (zh) * 1994-03-03 1999-09-15 中国科学院长春应用化学研究所 氟化物螺纹密封胶
US5467963A (en) * 1994-04-13 1995-11-21 Cummins Engine Company, Inc. Two-piece collet adjusting nut for a fuel injector solenoid valve
CN2260938Y (zh) * 1996-08-16 1997-08-27 王力人 新型螺纹密封连接结构
DE19645900A1 (de) * 1996-11-07 1998-05-14 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen
US6047899A (en) * 1998-02-13 2000-04-11 Caterpillar Inc. Hydraulically-actuated fuel injector with abrupt end to injection features
DE10017113B4 (de) * 2000-04-06 2006-02-09 Ina-Schaeffler Kg Spannmutter
DE10121531A1 (de) * 2001-05-03 2002-11-14 Siemens Ag Kraftstoffinjektor
DE10133167A1 (de) * 2001-07-07 2003-01-23 Bosch Gmbh Robert Kraftstoffhochdruckvorrichtung
US6675049B2 (en) * 2001-07-17 2004-01-06 Medtronic, Inc. Method and apparatus for automatic implantable medical lead recognition and configuration

Also Published As

Publication number Publication date
JP2005509781A (ja) 2005-04-14
DE50204423D1 (de) 2005-11-03
KR20040060971A (ko) 2004-07-06
CN1671962A (zh) 2005-09-21
KR100935093B1 (ko) 2010-01-06
US6929247B2 (en) 2005-08-16
US20040046059A1 (en) 2004-03-11
WO2003042531A1 (de) 2003-05-22
CN100453799C (zh) 2009-01-21
EP1454057A1 (de) 2004-09-08
DE10155413A1 (de) 2003-05-22
JP4348185B2 (ja) 2009-10-21
ES2247390T3 (es) 2006-03-01

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