EP1690025B1 - Dispositif, procede pour produire ledit dispositif ; dispositif de chambre et dispositif de transfert - Google Patents

Dispositif, procede pour produire ledit dispositif ; dispositif de chambre et dispositif de transfert Download PDF

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Publication number
EP1690025B1
EP1690025B1 EP04804690.8A EP04804690A EP1690025B1 EP 1690025 B1 EP1690025 B1 EP 1690025B1 EP 04804690 A EP04804690 A EP 04804690A EP 1690025 B1 EP1690025 B1 EP 1690025B1
Authority
EP
European Patent Office
Prior art keywords
piston
chamber
transmission device
groove
recess
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.)
Not-in-force
Application number
EP04804690.8A
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German (de)
English (en)
Other versions
EP1690025A1 (fr
Inventor
Hellmut Freudenberg
Willibald SCHÜRZ
Martin Simmet
Hanspeter Zink
Günter Ziegler
Achim LÖLL
Hans Peter Arnold
Patrick Delp
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.)
Carl Freudenberg KG
Continental Automotive GmbH
Original Assignee
Carl Freudenberg KG
Continental Automotive 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 Carl Freudenberg KG, Continental Automotive GmbH filed Critical Carl Freudenberg KG
Publication of EP1690025A1 publication Critical patent/EP1690025A1/fr
Application granted granted Critical
Publication of EP1690025B1 publication Critical patent/EP1690025B1/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
    • 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
    • F02M61/167—Means for compensating clearance or thermal expansion
    • 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
    • F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive 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
    • 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
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
    • 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
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
    • F02M2200/704—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with actuator and actuated element moving in different directions, e.g. in opposite directions
    • 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
    • F02M2200/90—Selection of particular materials
    • F02M2200/9015—Elastomeric or plastic materials
    • 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

Definitions

  • the invention relates to a device having a first body, which has a recess, and a second body, which is guided into the recess.
  • the invention further relates to a method for manufacturing the device.
  • the invention further relates to a chamber device having a chamber having a chamber housing having a recess with a piston and with the device.
  • the invention further relates to a transmission device which transmits a deflection of an actuator, in particular for an injection valve, with the chamber device.
  • a transmission device may be arranged in an injection valve of an internal combustion engine and preferably transmits the deflection of an actuator to a nozzle needle.
  • Piezo actuators are increasingly being used as actuators because of their very fast response time to control signals to precisely control the metering of fuel and possibly to enable several successive partial injections during a working cycle of a cylinder of the internal combustion engine.
  • the fuel pressure in an injector for diesel engines is up to 2,000 bar. This has the consequence that considerable forces must be applied to open or close the nozzle needle. Furthermore, a trained as a piezo actuator actuator only has a much lower stroke than the required stroke of the nozzle needle. For transmitting the stroke of the actuator, it is known to provide a transmitter device, which optionally amplifies the stroke and / or also creates a temperature-induced length compensation.
  • a fuel injection valve which has a piezoelectric or magnetostrictive actuator. Between the actuator and a valve needle, a transmission device with two mutually movable reciprocating piston is provided. The transmitter device is hermetically sealed against a valve interior.
  • the first reciprocating piston is operatively connected to the actuator and has a hollow cylindrical shape which is open on one side and whose opening is arranged facing away from the actuator. In the cylinder opening of the second piston is guided.
  • the first reciprocating piston is again in a hollow cylindrical housing. Between an end surface of the housing and the first and the second piston, a transmission chamber is formed. Further, a tension spring is provided which biases the first and second pistons in the opposite direction.
  • a compensation chamber is provided, which is partially bounded by a corrugated tube and is hydraulically coupled to the transmission chamber.
  • the compensation chamber serves to compensate for a change in volume of the transmission chamber and to provide the transmission chamber with a transfer medium with a fixed pressure.
  • a corrugated tube is relatively complicated and expensive.
  • a transmission device for transmitting the deflection of a piezoelectric actuator of an injection valve is known.
  • the actuator acts on a first reciprocating piston 1, which is formed in a partial area in the shape of a cylindrical pot and in the pot interior of a second piston engages, which is coupled to a servo valve or a nozzle needle of the injection valve.
  • the first reciprocating piston is guided in a cylinder body.
  • the second piston is guided in the cylinder body.
  • the first and second reciprocating pistons are coupled via a pressure chamber. An axial deflection of the first piston is transmitted by means of the pressure chamber in an opposite axial deflection of the second piston.
  • a compensation chamber which compensates for a change in volume in the transmission chamber and supplies the transmission chamber with a transfer medium with a predetermined pressure.
  • US 4,813,601 describes a transmission device according to the preamble of claim 1.
  • a piezo control valve in particular for controlling the fuel injection via an injection valve is described, which consists of a housing arranged in a piezo actuator and a valve.
  • the object of the invention is to provide a device, a method for manufacturing the device, a chamber device and a transmission device that are simple and that have a long service life.
  • a transmission device for an injection valve which transmits a deflection of an actuator and has a chamber device.
  • the transfer device has a chamber device.
  • the chamber device comprises a chamber having a chamber housing having a recess, a piston and a device.
  • the device has a first body having a recess and a second body guided into the recess and an elastomer interposed between the two first and second body is introduced into the recess and thus closes and seals the gap between the first and second body in this area.
  • the elastomer has a first groove extending at least partially along the recess spaced from the wall of the recess.
  • the invention thus uses the surprising finding that extends through the groove, the durability of the device significantly, even if the elastomer is exposed to high pressure fluctuations, as by the groove, a contact force is generated, which acts from the groove towards the wall of the recess and Thus, the elastomer presses against the recess and thus enhances the sealing effect.
  • the first groove is formed circumferentially, then a particularly uniform tightness along the entire recess is easily ensured.
  • the sealing effect towards the second body can be significantly improved in particular.
  • the second groove is spaced 0.2 to 1.5 mm apart from the second elastomeric body. This results in a particularly good sealing effect between the elastomer and the second body.
  • the first groove is deeper than the second groove.
  • the sealing effect can be significantly improved, which is based on the knowledge that sealing problems occur to a greater extent on the wall of the recess. It is particularly advantageous if the second groove is so wide that it opens into the first groove. This has the advantage that the device can be made very easily since the tool for making the contour of the elastomer can be easily removed from the mold.
  • the areas of the first and second body where the elastomer comes to rest are free of edges. Possible cross-sectional changes are rounded. This has the advantage that a primer applied to the first body and the second body to ensure a good bond between the elastomer and the first and second bodies, respectively, are simply applied with uniform thickness to the first and second bodies can.
  • first and second bodies are tubular. They are then suitable for insertion into further bodies and can then be permanently connected to them, for example by means of a welded connection.
  • simply the device can be manufactured separately and used for example for a chamber device.
  • the chamber housing is the first body and / or the piston is the second body.
  • Another chamber device is characterized by a chamber having a chamber housing having a recess with a piston and the device, wherein the first and second body are tubular and the chamber housing with the first body and the piston with the second body are connected.
  • This compound is particularly advantageously produced by welding.
  • the transmission device has a housing which has a first recess in which a first and a second piston are movably mounted.
  • the first and the second piston are operatively connected via at least one transmission chamber via a fluid, wherein the operative connection causes a displacement of the second piston when the first piston is moved and vice versa, wherein the transmission chamber via a Sealing gap is hydraulically connected to a compensation chamber, the pressure differences between the transfer chamber and the compensation chamber delayed compensated.
  • the chamber of the chamber device, the compensation chamber, the chamber housing the housing and the piston are the first piston.
  • the first body and the second body are plasma activated, then the first body and the second body are provided with an adhesion promoter in the areas where the elastomer is to abut, and then the elastomer is introduced and vulcanized.
  • the plasma activation which is preferably carried out by means of an ionized gas, for example oxygen, are generated at the areas of the first and second body, where the elastomer is to rest, radicals that are very easy to bond and thus to a very good bond of the adhesion promoter the areas of the first and second body lead.
  • an ionized gas for example oxygen
  • An injection valve 1 has an actuator 2, which is connected via a transmission device 3 with a nozzle needle 4 in operative connection.
  • the actuator 2 is preferred as a piezoelectric actuator educated. However, it may be another actuator producing a stroke.
  • the transmission device 3 preferably translates the deflection of the actuator 2 in the direction of the nozzle needle such that a deflection of the actuator 2 in the direction of the nozzle needle 4 is transmitted to an enlarged deflection of the nozzle needle 4. Furthermore, it preferably also compensates for temperature-induced changes in length of the actuator.
  • the nozzle needle 4 closes or releases depending on their position, a nozzle 41 in the injection valve 1 and thus controls the metering of fuel.
  • the transmitter device 3 can also transmit a deflection of the actuator 2 in the direction of the nozzle needle 4 in the opposite direction to the nozzle needle 4.
  • the transmission device 3 has a first piston 6, which has a ring-cylindrical shape open on one side.
  • the ring-cylindrical part of the first piston 6 defines a first transmission chamber 10 into which a second piston 7 is guided.
  • the first piston 6 is inserted into a cup-shaped recess 8 of the housing 5 and guided there.
  • the second piston 7 is guided in a further recess 16 of the housing 5 and projects into a recess 9 of the first piston 6.
  • the second piston 7 has an annular shoulder, on which its diameter increases in an abrupt manner toward the region which is guided in the first piston 6.
  • the shoulder forms an annular rear surface 13 of the second piston 7.
  • a first end surface 17 of the first piston, the rear surface 13 of the second piston and the end surface 15 of the housing 5 define a second transmission chamber 11.
  • the second transmission chamber 11 is hydraulically connected to the first transmission chamber 10 via a first sealing gap 18, which is formed between a side wall of the second piston 7 and an inner wall of the first piston 6.
  • the first transmission chamber 10 is from a second end face 19th of the first piston 6 and an end face 20 of the second piston 7 is limited.
  • the first sealing gap 18 is designed so narrow that short-term pressure fluctuations between the transformer chambers 10, 11 are not compensated. Furthermore, the second transmission chamber 11 is connected to a compensation chamber 22 via a second sealing gap 21, which is formed between the outer wall of the first piston and the inner wall of the housing.
  • the first transmission chamber 10 is hydraulically coupled via a bore 60, which is introduced into the first piston 6, with the compensation chamber 22.
  • the compensation chamber 22 is bounded by a rear surface 14 of the first piston and by a device which is described in detail with reference to FIG FIG. 4 is described.
  • the device comprises in the embodiment of the transmitter device according to FIG. 2 a first sleeve 52 and a second sleeve 53 having a smaller diameter than the first sleeve 52. Between the first and second sleeve 52, 53 an elastomer 50 is introduced.
  • the first sleeve 52 is fixedly connected to the housing 4, preferably by welding.
  • the second sleeve 53 is fixedly connected to the first piston 6, preferably also by welding.
  • the elastomer 50 is introduced into the space between the first piston 6 and the end portion of the housing 5.
  • the embodiment according to FIG. 2 offers the advantage that the first and second sleeves 52, 53 and the elastomer can be prepared in advance.
  • the elastomer 50 is intended to allow an increase in the volume of the compensation chamber 22 by its elastic properties and thus avoid excessive pressure increases.
  • the first and second transfer chambers 10, 11 and the compensation chamber 22 are filled with a fluid, preferably oil.
  • the housing 5, the first piston 6 and the second piston 7 and also the first and second sleeves 52, 53 are preferably made of steel.
  • a tensioning means 54 which is preferably designed as a spiral spring, provided that on the one hand supported on a stop ring 55 and on the other hand acts on the elastomer 50.
  • the tensioning means is biased to bias the elastomer 50 toward the balance chamber 22 with a predetermined force.
  • the device is provided with a first body formed as a first sleeve 52 with a second body formed as a second sleeve 53 and the elastomer 50.
  • the first body is in accordance with the embodiment of the transmitter device 3 FIG. 3 the housing 5 and the second body is the first piston 6.
  • the elastomer 50 is introduced into the intermediate region between the first sleeve 52 and the second sleeve 53 in such a way that it closes and seals it.
  • a first groove 61 is formed, which extends at a distance from the wall of the recess along the recess. It is, as in the top view in FIG. 5 represented, circumferentially within the recess of the first sleeve 52, ie the area enclosed by the sleeve 52 in the interior. It is preferably spaced from the wall of the first sleeve with a distance of 0.2 to 1.5 mm relative to the groove center. The depth of the first groove is preferably selected between 0.2 and 1.5 mm.
  • a second groove 62 is provided, the up-running edge preferably between 0.2 and 1.5 mm to the second sleeve 53 is spaced. It is ensured by the second groove 62 that the pressure prevailing in the compensation chamber 22 also acts radially on the second sleeve 53 and thus presses the elastomer 50 against the second sleeve 53. As a result, the sealing effect with respect to the second sleeve 53 is also significantly improved.
  • the second groove 62 is formed less deep than the first groove 61. This is based on the knowledge that even a less deep second groove is sufficient to ensure sufficient tightness of the elastomer 50 to the second sleeve 53 in contrast to the first sleeve 52. In addition, the smallest possible depth of the grooves 61, 62 desirable in terms of minimizing the volume of the compensation chamber 22. The fact that the second groove 62 opens directly into the first groove 61, a simpler demolding of the tool is possible with the the elastomer is brought into its shape, which makes the device much easier to manufacture, especially with regard to very small dimensions.
  • the first body formed as a first sleeve 52 and the second body formed as a second sleeve 53 is plasma-activated. This is preferably done by rinsing with ionized gas, eg oxygen, whereby radical sites are formed on the metal surface, which result in a very strong bondability of the surface of the first and second sleeves 52, 53.
  • ionized gas eg oxygen
  • a bonding agent is applied to the first and second sleeve, preferably in the region in which the elastomer 50 is intended to abut.
  • the effect of the primer is better the thinner the layer provided with the primer. Ideally, this is a monomolecular layer.
  • the rounded edges of the first and second sleeves 52, 53 ensure that the bonding agent is easy can distribute evenly. Experiments have shown that too sharp edges can lead to an uneven distribution of the adhesion promoter and thus to local changes in layer thickness, with the result that in the thicker regions of the adhesion promoter, the elastomer does not adhere so well to the first and second sleeves 52, 53 and thus leaks can occur.
  • first and second sleeves 52, 53 are inserted into a corresponding molding tool and then the elastomer composition is injected and permanently brought into its shape by means of a vulcanization process.
  • the tubular body of the first body is formed here in a rectangular basic shape.
  • the first and second bodies can also be formed in further tube shapes, such as an elliptical basic shape.
  • the first groove 61 is not circumferentially formed in this embodiment, but only in sections, preferably in areas where an additional radial contact pressure of the elastomer 50 is necessary to ensure the desired sealing effect and durability of the device.
  • the first groove 61 is formed so wide in the radial direction that sufficient forces are exerted on this wall via its facing to the first sleeve 52 wall forces to ensure the tightness with respect to the first sleeve 52 and at the same time over the wall, which faces the second sleeve 53, sufficient contact forces are transmitted, which ensure a sufficient tightness with respect to the second sleeve 53.
  • the device according to FIG. 4 . 5, 6 and 7 can be used except for a transmitter device 3 for any other chamber device.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Actuator (AREA)
  • Sealing Devices (AREA)
  • Gasket Seals (AREA)

Claims (13)

  1. Dispositif de transfert pour une soupape d'injection (1) qui transfère une déviation d'un actionneur (2), comprenant un boîtier (5) qui présente un premier évidement dans lequel sont supportés de manière déplaçable un premier et un deuxième piston (6, 7), et le premier et le deuxième piston (6, 7) étant en liaison fonctionnelle par le biais d'au moins une chambre de transfert (10, 11) par le biais d'un fluide, la liaison fonctionnelle provoquant un déplacement du deuxième piston (7) lorsque le premier piston (6) est déplacé et inversement, la chambre de transfert (10, 11) étant connectée hydrauliquement par le biais d'une fente d'étanchéité (21) à une chambre de compensation (22), les différences de pression entre la chambre de transfert (10, 11) et la chambre de compensation (22) étant compensées de manière retardée, et comprenant un dispositif de chambre avec une chambre qui présente un boîtier de chambre qui présente un évidement avec un piston et un dispositif qui présente les caractéristiques suivantes : un premier corps qui présente un évidement, un deuxième corps qui est guidé dans l'évidement, et un élastomère qui est introduit entre le premier et le deuxième corps dans l'évidement et qui, dans cette région, ferme et étanchéifie ainsi l'espace intermédiaire entre le premier et le deuxième corps, l'élastomère (50) présentant une première rainure (61) qui s'étend à distance de la paroi de l'évidement au moins en partie le long de l'évidement, les régions du premier et du deuxième corps au niveau desquelles s'applique l'élastomère étant exemptes d'arêtes et la chambre étant la chambre de compensation (22), le boîtier de chambre étant le boîtier (5) et le piston étant le premier piston (6),
    caractérisé en ce qu'une deuxième rainure (62) est réalisée dans l'élastomère (50), laquelle s'étend radialement à l'intérieur de la première rainure, et en ce que la première rainure (61) est plus profonde que la deuxième rainure (62).
  2. Dispositif de transfert selon la revendication précédente, dans lequel le premier piston (6) présente une forme annulaire cylindrique ouverte d'un côté, qui délimite la chambre de transfert (10) et dans laquelle le deuxième piston (7) est guidé, de telle sorte que la chambre de transfert (10) soit limitée par une surface frontale (19) du premier piston (6) et une surface frontale (20) du deuxième piston (7).
  3. Dispositif de transfert selon la revendication précédente, dans lequel la chambre de compensation (22) est limitée par une surface arrière (14) du premier piston (6) et par le dispositif de chambre.
  4. Dispositif de transfert selon l'une quelconque des revendications précédentes 2 ou 3, dans lequel le deuxième piston (7) présente un épaulement de forme annulaire au niveau duquel son diamètre augmente en forme de gradin et qui forme une surface arrière annulaire (13), et dans lequel une surface frontale (17) du premier piston (6), la surface arrière annulaire (13) du deuxième piston (7) et une surface d'extrémité (15) du boîtier (5) délimitent une deuxième chambre de transfert (11).
  5. Dispositif de transfert selon la revendication précédente, dans lequel la deuxième chambre de transfert (11) est connectée hydrauliquement à la chambre de transfert (10) par le biais d'une première fente d'étanchéité (18) qui est réalisée entre une paroi latérale du deuxième piston (7) et une paroi interne du premier piston (6),
    et dans lequel la deuxième chambre de transfert (11) est connectée à la chambre de compensation (22) par le biais d'une deuxième fente d'étanchéité (21) qui est réalisée entre une paroi externe du premier piston (6) et une paroi interne du boîtier (5).
  6. Dispositif de transfert selon l'une quelconque des revendications précédentes,
    caractérisé en ce que la première rainure (61) est réalisée sous forme périphérique à l'intérieur de l'évidement.
  7. Dispositif de transfert selon l'une quelconque des revendications précédentes, caractérisé en ce que la première rainure est espacée de 0,2 à 1,5 mm par rapport à la paroi de l'évidement du premier corps.
  8. Dispositif de transfert selon l'une quelconque des revendications précédentes, caractérisé en ce que la deuxième rainure est espacée de 0,2 à 1,5 mm de l'emplacement d'application de l'élastomère (50) contre le deuxième corps.
  9. Dispositif de transfert selon l'une quelconque des revendications précédentes, caractérisé en ce que la deuxième rainure (62) est suffisamment large pour déboucher dans la première rainure (61).
  10. Dispositif de transfert selon l'une quelconque des revendications précédentes, caractérisé en ce que le premier et le deuxième corps sont réalisés sous forme tubulaire.
  11. Dispositif de transfert selon l'une quelconque des revendications précédentes, caractérisé en ce que le boîtier de chambre est le premier corps et/ou le piston est le deuxième corps.
  12. Dispositif de transfert selon la revendication 10, caractérisé en ce que le boîtier de chambre est connecté au premier corps et le piston est connecté au deuxième corps.
  13. Dispositif de transfert selon la revendication précédente, caractérisé en ce que le boîtier de chambre est soudé au premier corps et le piston est soudé au deuxième corps.
EP04804690.8A 2003-12-05 2004-12-06 Dispositif, procede pour produire ledit dispositif ; dispositif de chambre et dispositif de transfert Not-in-force EP1690025B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10356848 2003-12-05
PCT/EP2004/053285 WO2005054725A1 (fr) 2003-12-05 2004-12-06 Dispositif, procede pour produire ledit dispositif ; dispositif de chambre et dispositif de transfert

Publications (2)

Publication Number Publication Date
EP1690025A1 EP1690025A1 (fr) 2006-08-16
EP1690025B1 true EP1690025B1 (fr) 2017-05-03

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EP04804690.8A Not-in-force EP1690025B1 (fr) 2003-12-05 2004-12-06 Dispositif, procede pour produire ledit dispositif ; dispositif de chambre et dispositif de transfert

Country Status (5)

Country Link
US (1) US7726625B2 (fr)
EP (1) EP1690025B1 (fr)
JP (1) JP2007515604A (fr)
CN (1) CN100523568C (fr)
WO (1) WO2005054725A1 (fr)

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DE102006048727A1 (de) * 2006-10-16 2008-04-17 Robert Bosch Gmbh Kraftstoffinjektor mit Magnetventil
DE102010031497A1 (de) * 2010-07-19 2012-01-19 Robert Bosch Gmbh Kraftstoffinjektor mit hydraulischer Kopplereinheit
DE102014205910A1 (de) * 2014-03-31 2015-10-01 Robert Bosch Gmbh Brennstoffeinspritzventil
CN109958564B (zh) * 2017-12-26 2023-09-29 天津大学（青岛）海洋工程研究院有限公司 一种用于柴油机共轨式电控喷油器的电磁阀

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WO2005054725A1 (fr) 2005-06-16
US20070241295A1 (en) 2007-10-18
JP2007515604A (ja) 2007-06-14
US7726625B2 (en) 2010-06-01
CN1890493A (zh) 2007-01-03
EP1690025A1 (fr) 2006-08-16
CN100523568C (zh) 2009-08-05

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