EP1576281B1 - Soupape a coulisse - Google Patents

Soupape a coulisse Download PDF

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Publication number
EP1576281B1
EP1576281B1 EP03776910A EP03776910A EP1576281B1 EP 1576281 B1 EP1576281 B1 EP 1576281B1 EP 03776910 A EP03776910 A EP 03776910A EP 03776910 A EP03776910 A EP 03776910A EP 1576281 B1 EP1576281 B1 EP 1576281B1
Authority
EP
European Patent Office
Prior art keywords
control
valve according
sliding valve
sliding sleeve
control cylinder
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 - Fee Related
Application number
EP03776910A
Other languages
German (de)
English (en)
Other versions
EP1576281A1 (fr
Inventor
Gernot Hertweck
Holger KÖGL
Katsuyoshi Koyanagi
Heinrich Müller
Heinz Öing
Gregor Renner
Marco Stotz
Jens-Peter Wobbe
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler 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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1576281A1 publication Critical patent/EP1576281A1/fr
Application granted granted Critical
Publication of EP1576281B1 publication Critical patent/EP1576281B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, 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
    • 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
    • F02M61/042—The valves being provided 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
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
    • F02M63/008—Hollow valve members, e.g. members internally guided
    • 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
    • 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
    • F02M51/0635—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding
    • F02M51/066—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not 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
    • 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
    • F02M61/04—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
    • 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

Definitions

  • the invention relates to a slide valve according to the preamble of claim 1.
  • a reciprocating internal combustion engine with a fuel injector is known.
  • This has a hollow valve needle with a pointing to a combustion chamber of the internal combustion engine valve needle head.
  • the injection valve opens by the valve needle is moved outwardly toward the combustion chamber, wherein a valve seat surface on the needle head lifts from a valve seat on a nozzle body.
  • the instantaneous opening cross section of the nozzle holes is determined as a function of the needle stroke by a control edge on the inner edge of the valve seat of the nozzle body.
  • the injection valve has two rows of controllable nozzle holes, which are arranged offset to one another in the direction of movement of the valve needle.
  • the nozzle holes of one row differ from the nozzle holes of the other row in their inclination to the nozzle axis and in their cross-sectional shape, so that the mixture formation in the combustion chamber can be adapted to the operating parameters in a wide range.
  • the fuel injector is a combination of a poppet valve which, when closed, prevents dripping of the injector and a spool valve, thereby varying the amount of fuel injected and fuel conditioning can. Because of the nozzle bores in the valve needle, the walls of the valve needles must have sufficient strength.
  • valve needle head increases the mass of the valve, so that in addition to the complexity of the injection nozzle by the combination of two control mechanisms, the needle drive and actuator because of the mass of the nozzle needle is very complex and can lead to switching noise. In addition, such a system is not possible for injectors with inwardly opening nozzle needles.
  • an inwardly opening injection nozzle is known with also two rows of nozzle bores which are introduced into the nozzle body and can be connected by a coaxially arranged sliding sleeve via a corresponding end blind hole and radially extending fuel channels with the fuel pressure system.
  • the sliding sleeve is a thick-walled, cylindrical component, which is axially displaceable, precisely fitted into the nozzle body.
  • a slide valve in which a sliding sleeve is arranged axially displaceable in a control cylinder.
  • the sliding sleeve has in the end face, which faces a pressure medium input of the control cylinder, a blind hole, emanating from the radially extending pressure medium channels.
  • control surfaces can tightly close the control openings in the closed state without high production costs for close fits.
  • the invention has for its object to simplify a tight-fitting slide valve and to reduce the mass of the moving parts. It is achieved according to the invention by the features of claim 1. Further advantageous embodiments will be apparent from the dependent claims.
  • the sliding sleeve in the region of the control surface on at least one longitudinal slot, so that the control surface can yield radially. If a plurality of control surfaces distributed over the circumference assigned to a plurality of control openings, a corresponding number of longitudinal slots are provided which form between them spring tongues on which the control surfaces are arranged. If the longitudinal slots are carried out to the front side of the sliding sleeve, it is advantageous to arrange the control surfaces at the end of the spring tongues thus formed. Due to the geometric design of the spring tongues whose spring characteristics can be influenced and tailored to the application.
  • the medium namely the fuel is supplied under high pressure through the cavity of the valve needle or the sliding sleeve
  • a slide valve is particularly suitable as a fuel injection valve; however, it is equally suitable for other applications and for controlling gaseous media.
  • the slide valve according to the invention is characterized mainly by a simple design, freedom from leaks and a low mass of the moving parts, which reduces the cost of the control and Aktuatorik with short response times. Furthermore, switching noises are avoided.
  • the spring tongues are reinforced in the area of the control surfaces. This gives the control surfaces a sufficient dimensional stability, so that they can invest close to the control openings.
  • the sliding sleeve can be made of magnetically conductive material and serve its upper part at the same time as an armature of a magnetic circuit. This achieves a simplified, compact design actuators.
  • control surfaces of the sliding sleeve are assigned to the control openings clearly, it is expedient to secure the sliding sleeve during its axial movement against rotation or forcibly guide in the rotational movement.
  • This can e.g. be done by the sliding sleeve or a part connected to it has a deviating from the circular cross-sectional profile, which is guided in a matching guide of the valve body.
  • a profile could e.g. be a polygonal profile.
  • the sliding sleeve could be guided in a coarse thread.
  • a slide valve 10 in the form of a fuel injection valve for an internal combustion engine has a valve housing 11, in which a sliding sleeve 12 in a control cylinder 13 is axially displaceable in the direction of movement 29.
  • the sliding sleeve 12 is connected by a transverse pin 15 which is inserted in a transverse bore 16 of the sliding sleeve 12, with a valve rod 14.
  • This is actuated by an actuator, not shown, for example, by an electromagnet.
  • the sliding sleeve 12 and its upper part 27 can be made of magnetic material and be designed as a magnetic armature.
  • the sliding sleeve 12 has, starting from its free end, longitudinal slots 24 which are distributed over the circumference and form between them spring tongues 25, at whose ends on the outer circumference control surfaces 23 are arranged, which cooperate with control openings 17, 18 in the control cylinder 13.
  • the control openings 17, 18 are followed by outwardly directed nozzle bores 19, 20. These are offset in the direction of movement 29 of the sliding sleeve 12 to each other.
  • the control surfaces 23 cover the control openings 17, 18. In this case, a control surface 23 with one or more control openings 17, 18 cooperate.
  • the spring tongues 25 are reinforced, so that the control surfaces 23 abut tightly against the control openings 17, 18 due to the increased stiffness of form and close them without leakage.
  • the pressure with which the control surfaces 23 abut the control openings 17, 18 can be achieved by a specific bias of the spring tongues 25 or by the pressure of the medium to be controlled. This is supplied centrally through a cavity 22 of the sliding sleeve 12 and conveyed through the nozzle bores 19, 20.
  • the control cylinder 13 closes the front side with the blind hole 21.
  • the spring tongues 25 are pre-bent by a predetermined amount to the outside.
  • the spring characteristic can be determined by the material selection and the geometric design.
  • Fig. 2 which is a section of FIG. 1 in an enlarged scale substantially shows two rows of nozzle bores 19, 20 which are arranged offset in the direction of movement 29 and / or in the circumferential direction to each other.
  • the nozzle bores 19, 20 may have a different inclination to the direction of movement 29 and also have different cross-sectional profiles, as is known per se in fuel injection valves of the type mentioned.

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

L'invention concerne une soupape à coulisse (10) comportant un manchon coulissant (12) se déplaçant axialement dans un cylindre de commande (13), qui commande, avec au moins une face de commande (23) située sur sa périphérie extérieure, au moins une ouverture de commande (17, 18) . Selon l'invention, il est proposé que la surface de commande (23) puisse se déformer élastiquement en direction de l'intérieur du cylindre de commande (13).

Claims (11)

  1. Soupape à coulisse avec une douille coulissante axialement déplaçable dans un cylindre de commande, laquelle commande par au moins une surface de commande sur son contour extérieur une ouverture de commande au moins dans le cylindre de commande, la surface de commande (23) étant élastiquement déformable dans le sens radial vers le cylindre de commande (13) et reposant contre le cylindre de commande (13),
    caractérisée en ce que
    la douille coulissante (12) comporte au moins une fente oblongue (24) dans la zone de la surface de commande (23).
  2. Soupape à coulisse selon la revendication 1,
    caractérisée en ce que
    plusieurs fente oblongues (24) sont prévues, formant entre elles des languettes flexibles (25), contre lesquelles sont disposées les surfaces de commande (23).
  3. Soupape à coulisse selon la revendication 2,
    caractérisée en ce que
    les languettes flexibles (25) sont renforcées dans la zone (26) des surfaces de commande (23).
  4. Soupape à coulisse selon l'une des revendications précédentes,
    caractérisée en ce que
    la surface de commande (23) est serrée contre le cylindre de commande (13) par la pression d'un milieu commandé.
  5. Soupape à coulisse selon l'une des revendications précédentes,
    caractérisée en ce que
    celle-ci est exécutée avec une construction en cartouche.
  6. Soupape à coulisse selon l'une des revendications précédentes,
    caractérisée en ce que
    la douille coulissante (12) est fabriquée en matériau électriquement conducteur et en ce que sa partie supérieure (27) sert simultanément d'induit pour un circuit magnétique.
  7. Soupape à coulisse selon l'une des revendications précédentes,
    caractérisée en ce que
    la douille coulissante (12) est guidée avec une sécurité anti-rotation dans le cylindre de commande (13).
  8. Soupape à coulisse selon l'une des revendications précédentes,
    caractérisée en ce que
    le cylindre de commande (13) présente une zone conique (28) pour l'insertion de la douille coulissante (12).
  9. Soupape à coulisse selon l'une des revendications précédentes,
    caractérisée en ce que
    celle-ci est une soupape d'injection de carburant pour un moteur à combustion interne.
  10. Soupape à coulisse selon l'une des revendications précédentes,
    caractérisée en ce qu'
    au moins deux ouvertures de commande (17, 18) axialement décalées sont prévues dans le cylindre de commande (13), avec des alésages de gicleur (19, 20) qui leur sont raccordés.
  11. Soupape à coulisse selon la revendication 10,
    caractérisée en ce qu'
    au moins deux alésages de gicleur (19, 20) diffèrent par leur position et/ou leur forme entre eux.
EP03776910A 2002-12-20 2003-11-19 Soupape a coulisse Expired - Fee Related EP1576281B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10261175A DE10261175A1 (de) 2002-12-20 2002-12-20 Schieberventil
DE10261175 2002-12-20
PCT/EP2003/012936 WO2004059161A1 (fr) 2002-12-20 2003-11-19 Soupape a coulisse

Publications (2)

Publication Number Publication Date
EP1576281A1 EP1576281A1 (fr) 2005-09-21
EP1576281B1 true EP1576281B1 (fr) 2006-06-07

Family

ID=32478016

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03776910A Expired - Fee Related EP1576281B1 (fr) 2002-12-20 2003-11-19 Soupape a coulisse

Country Status (5)

Country Link
US (1) US20060124763A1 (fr)
EP (1) EP1576281B1 (fr)
JP (1) JP4232041B2 (fr)
DE (2) DE10261175A1 (fr)
WO (1) WO2004059161A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105465412A (zh) * 2015-02-17 2016-04-06 江苏瑞朗博机械设备有限公司 压杆失稳触发型换向阀
CN105387245B (zh) * 2015-12-16 2017-09-29 日照海卓液压有限公司 六位五通逻辑选择阀
US10337448B2 (en) * 2015-12-22 2019-07-02 Ford Global Technologies, Llc Methods and systems for a fuel injector assembly
US10570865B2 (en) * 2016-11-08 2020-02-25 Ford Global Technologies, Llc Fuel injector with variable flow direction
CN114483383B (zh) * 2022-01-28 2023-07-21 刘义亭 一种气体燃料喷射器

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE834310C (de) * 1949-10-11 1952-03-17 Ind A G Absperrvorrichtung fuer Fluessigkeiten und Gase
US3762443A (en) * 1967-09-19 1973-10-02 Tektro Inc Resilient fluid control valve
US3711068A (en) * 1970-09-25 1973-01-16 J Perry Carburetor fuel metering valve
DE7234188U (de) * 1972-09-16 1973-01-18 Feuchter P Dosiervorrichtung
US4233885A (en) * 1978-10-24 1980-11-18 Deschner Richard E Apparatus for improved motion control
DE2855497A1 (de) * 1978-12-22 1980-07-03 Wabco Fahrzeugbremsen Gmbh Dichtung, insbesondere fuer ein schieberventil
DK393281A (da) * 1981-09-07 1983-03-08 H R Joergensen Spaerreventil til ledningssystemer,navnlig til afdraeningssystemer for urene vaesker saasom gylle
US5392745A (en) * 1987-02-20 1995-02-28 Servojet Electric Systems, Ltd. Expanding cloud fuel injecting system
DE4119402C2 (de) * 1991-06-10 1995-01-12 Mannesmann Ag Schieberventil
FR2699638B1 (fr) * 1992-12-21 1995-02-10 Rollin Sa Tiroir de valve distributrice de fluide à plusieurs voies, valve équipée de ce tiroir et procédé de fabrication de ce tiroir.
US5544816A (en) * 1994-08-18 1996-08-13 Siemens Automotive L.P. Housing for coil of solenoid-operated fuel injector
JPH08144896A (ja) * 1994-11-25 1996-06-04 Zexel Corp 可変噴孔型燃料噴射ノズル
US5626325A (en) * 1995-09-14 1997-05-06 Cummins Engine Company, Inc. High pressure control valve for a fuel injection system
DE29713628U1 (de) * 1997-07-31 1998-11-26 Robert Bosch Gmbh, 70469 Stuttgart Kraftstoffeinspritzdüse
DE19908420A1 (de) * 1999-02-26 2000-05-25 Siemens Ag Steuerventil zur Steuerung des Servodruckes für die Einspritzanlage eines Dieselmotors
DE19916485C2 (de) * 1999-04-13 2001-10-31 Daimler Chrysler Ag Verfahren zum Betrieb einer Hubkolbenbrennkraftmaschine
DE10010863A1 (de) * 2000-03-06 2001-09-27 Bosch Gmbh Robert Einspritzdüse
DE10034445A1 (de) * 2000-07-15 2002-01-24 Bosch Gmbh Robert Brennstoffeinspritzventil

Also Published As

Publication number Publication date
WO2004059161A1 (fr) 2004-07-15
JP4232041B2 (ja) 2009-03-04
US20060124763A1 (en) 2006-06-15
DE10261175A1 (de) 2004-07-08
JP2006510846A (ja) 2006-03-30
EP1576281A1 (fr) 2005-09-21
DE50303752D1 (de) 2006-07-20

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