EP1111230A2 - Dispositif hydraulique pour transmettre le mouvement d'un actuateur - Google Patents

Dispositif hydraulique pour transmettre le mouvement d'un actuateur Download PDF

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Publication number
EP1111230A2
EP1111230A2 EP00127847A EP00127847A EP1111230A2 EP 1111230 A2 EP1111230 A2 EP 1111230A2 EP 00127847 A EP00127847 A EP 00127847A EP 00127847 A EP00127847 A EP 00127847A EP 1111230 A2 EP1111230 A2 EP 1111230A2
Authority
EP
European Patent Office
Prior art keywords
storage chamber
actuator
piston element
area
hydraulic
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
EP00127847A
Other languages
German (de)
English (en)
Other versions
EP1111230A3 (fr
EP1111230B1 (fr
Inventor
Bernhard Dr. Gottlieb
Andreas Dr. Kappel
Randolf Dr. Mock
Bernhard Fischer
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP1111230A2 publication Critical patent/EP1111230A2/fr
Publication of EP1111230A3 publication Critical patent/EP1111230A3/fr
Application granted granted Critical
Publication of EP1111230B1 publication Critical patent/EP1111230B1/fr
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
    • 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
    • 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
    • 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
    • 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
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
    • F02M63/0007—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using electrically actuated valves
    • 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
    • F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
    • F02M2200/304—Fuel-injection apparatus having mechanical parts, the movement of which is damped using hydraulic 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
    • F02M2200/70—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

Definitions

  • the invention relates to a hydraulic device for Transferring a movement of an actuator to an actuator according to the preamble of claim 1, in particular for use in a fluid dispenser.
  • a hydraulic device for Transferring a movement of an actuator to an actuator according to the preamble of claim 1, in particular for use in a fluid dispenser.
  • Such a device hereinafter also referred to as a transmission element, is from DE 197 08 304 A1 known.
  • valve needle should either be unloaded in the injection valve be arranged or loaded with a pressure-dependent force become. If an increasing fuel pressure at the Valve needle is in contact with the valve needle to ensure adequate tightness with increasing Fuel pressure pressed ever more firmly onto the valve seat becomes.
  • the injection valve is said to be insensitive to thermal or pressure-induced elongations. Also supposed to the functionality of the injector Setting effects that e.g. B. by aging processes of the actuator can be triggered, impaired. To changes in length in the injection valve caused by thermal, pressure or set effects are prevented usually the valve needle or the other components in the Injector made from special steels, but very are expensive. Furthermore, it is also when using such expensive special steels necessary between the individual Provide sufficient distance between components to allow possible To be able to absorb elongations between the components. This necessary safety distance of 3 ⁇ m to 5 ⁇ m however, is lost as a usable stroke of the actuator, which in particular when using a piezo actuator that is only a small one Causes problems when opening the valve needle can lead.
  • DE 197 08 304 A1 proposed a hydraulic transmission element that the Deflection of the actuator in the injection valve on a drive stamp of the servo valve or a guide shaft of the Valve needle transmits.
  • the hydraulic transmission element is essentially cylindrical and has a hydraulic chamber made by a flexible membrane is limited.
  • the drive stamp is located on the flexible membrane the servo valve or the guide shaft of the Valve needle on.
  • a connecting hole leads from the hydraulic chamber with throttling effect to a storage chamber, the is provided inside the transmission element and by a preloaded spring plate is completed.
  • About the Spring plate is a rigid cover plate in the hydraulic chamber arranged, which rests on the actuator of the injection valve.
  • the hydraulic chamber and the storage chamber are equipped with a hydraulic Medium filled.
  • the in the Storage chamber prevailing pressure of the hydraulic medium transferred to the hydraulic chamber so that the flexible membrane always on the drive stamp of the servo valve or on the guide shaft the valve needle rests, even if due to thermal effects or aging processes Arrangement of the individual components in the fuel injector surrender.
  • the actuator When the actuator is actuated, the deflection this actuator via the transmission element essentially unchanged on the drive stamp of the servo valve or transfer the guide shaft of the valve needle.
  • the connecting hole between the hydraulic chamber and the storage chamber is designed so that due to the in the area of control times in milliseconds essentially no hydraulic medium from the hydraulic chamber into the Storage chamber can drain.
  • the transmission element known from DE 197 08 304 A1 is characterized by a complicated structure. Furthermore, it is with this known transmission element difficult, temperature compensation over the entire working area of the fuel injection valve from approx. -40 ° C to Ensure + 150 ° C. In this wide temperature range there may be a change in the volume of the transfer element hydraulic medium of up to 20% come. Such a large fluctuation in volume can, however very difficult of that chosen in DE 197 08 304 A1 Cope with construction.
  • the object of the present invention is to ensure that there is no play hydraulic device for transmitting a movement of a Provide actuator on an actuator, which is characterized by a great reliability with high permanent loads and strong ones Temperature fluctuations.
  • the device according to the invention is characterized by Transmission element from which a first piston element, the is firmly connected to an actuator, and a second piston element, which is firmly connected to an actuator, being between the first piston element and the second Piston element is a hydraulic chamber, and one with the hydraulic chamber through a throttle gap connected storage chamber comprises a pressure-loaded area, whose range limits are elastic.
  • This structure reliably ensures an automatic Compensation for large changes in distance between the actuator and the actuator caused by thermal pressure or setting effects can be caused.
  • the ensures elastic design of a storage chamber area, that the transmission element over a wide temperature range, especially the entire work area of a Functional fuel injector from approx. -40 ° C to + 150 ° C remains.
  • the transmission element according to the invention can also be both inward and outward outside opening fuel injector used become. Furthermore, the transmission element is characterized by a very compact design, a very high hydromechanical Transmission efficiency and excellent dynamic Transmission properties from, since only a very small hydraulic chamber between the first and the second piston element is needed.
  • the elastic Storage chamber area by a bellows arrangement, preferably consisting of metal bellows, limited.
  • a bellows arrangement preferably consisting of metal bellows, limited.
  • Such bellows are very stiff radially, but very stiff in the axial direction soft design and can therefore reliably change volume in the hydraulic fluid contained in the transmission element take up.
  • the actuator biased by a spring element that is fixed to the first Piston element of the transmission element is connected.
  • the fuel injector shown in Figure 1 which opens out into a combustion chamber of an internal combustion engine, is operated with fuel under high pressure.
  • This injector is in the upper part of a housing 1 installed a drive unit that is essential Component a piezoelectric multilayer actuator 8 in low voltage technology having.
  • This piezoelectric multilayer actuator 8 is surrounded by a tube spring 9, which is between a head plate 10 and a base plate 11 is welded, the Bourdon tube 9 is biased so that the piezoelectric multilayer actuator 8 under a mechanical pressure preload stands.
  • the housing 1 is also with a base plate 11 of the Drive unit as stiff as possible, preferably via a Weld 12, connected.
  • the piezoelectric multilayer actuator 8 acts when it is electrical is controlled via its feed lines 19, via a hydraulic transmission element on the rear end of a Valve needle 3 on.
  • the valve needle 3 is in the front part of the Housing 1 of the injection valve in a continuous inner bore 30 arranged and closes with one at rest valve plate arranged at the front end of the valve needle 3 4 a valve seat 2 on the housing 1.
  • the closed one The initial state in the injector is prestressed Nozzle spring 5 ensures that with the valve needle 3 is connected via a snap ring 6 and the valve plate 4 presses on valve seat 2.
  • valve needle 3 Between the connector 16 on the valve needle 3 and the annular circumferential Paragraph 14 in the housing 1 is parallel to the valve needle 3 running metal bellows 15 welded to the hermetic Sealing the fuel chamber 13 against the other housing areas in which the drive unit and the transmission element is used. Will continue the valve needle 3 is secured against rotation by the metal bellows 15. This can be particularly advantageous if a stroke-limiting stop for the valve needle 3 in the Fuel injector is installed.
  • the use of the metal bellows 15 enables the passage of needles a perfect, permanent and reliable seal the high pressure area in the injection valve compared to the rest Areas.
  • the metal bellows 15 holds, like calculations and Experiments have shown, despite small wall thicknesses of e.g. 50 ⁇ m to 500 ⁇ m due to its high radial rigidity very high pressures without being irreversibly deformed.
  • the metal bellows 15 can also be designed that by a sufficient number of waves a high one axial compliance, d. H. low spring rate in the direction of movement the valve needle 3 is reached to the deflection not to affect the valve needle 3 and by the temperature-related changes in length of the needle guide in the valve needle 3 forces introduced as low as possible to keep.
  • Fuel leakage can be prevented.
  • the needle feed-through from annular shoulder 14, metal bellows 15 and connector 16 can also be designed such that the pressure-related acting on the valve needle 3 Forces compensate each other so that the valve needle 3 is kept force-free overall. This enables the Design the injector so that one of the fuel pressure almost independent switching behavior is possible because the opening and closing forces then only from the piezoelectric Multilayer actuator 8 and the force of the preloaded nozzle spring 5 can be determined.
  • valve needle bushing can also be designed so that one with increasing fuel pressure in the fuel chamber 13 increasing Force results with which the valve plate 4 in the Valve seat 2 is pressed.
  • the metal bellows 15 and the connector 16 is fixed, there is thus the possibility the valve needle 3 of the injector in the desired Wise pressure, d. H. completely free of pressure forces, overcompensated or keep undercompensated.
  • the metal bellows 15 still has due to its metallic Material over a wide working temperature range with constant functionality.
  • the thermal changes in length of the metal bellows 15 lead due to the low axial spring constant of the metal bellows 15 only a negligible force transmission into the valve needle 3 in the axial direction.
  • the metal bellows 15 can over it addition due to its mechanical spring action in axial direction, the nozzle spring 5 partially or completely replace.
  • the transmission element is between the drive unit and the valve needle 3 are provided.
  • This transmission element serves primarily as a hydraulic one Match compensation element to prevent any game between the piezoelectric multilayer actuator 8 and valve needle 3 to exclude. Furthermore, with the transmission element a stroke translation take place.
  • the transmission element has a primary piston 21 and one Secondary piston 23, which in a to the annular shoulder 14 arranged in the housing 1 adjacent bore section are.
  • This bore section is designed in two stages, with a first, following the drive unit wider bore section 31 in which the primary piston 21 sits and a second narrower bore section 32, which is adjacent to the stop 14 in the housing 1 and in which the secondary piston 23 is arranged.
  • the primary piston 21 is essentially cylindrical and on the top plate 10 attached to the drive unit or preferably fixed over a weld connected to this. Preferably exist the head plate 10 and the primary piston from one part.
  • the secondary piston 23 is designed as a hollow cylinder and plugged onto the rear end of the valve needle 3, the the end face of the secondary piston facing the primary piston 21 23 essentially flat to the end face of the valve needle 3 is arranged.
  • the valve needle 3 and the secondary piston 23 are also preferably fixed via a weld, at least but without play and mechanically as stiff as possible connected.
  • the primary piston 21 and the secondary piston 23 are still spaced from each other so that between the opposite End faces in the area of the transition from the first Bore section 31 to the second bore section 32 a Hydraulic chamber 22 is formed. Furthermore is in the transmission element a two-part storage chamber 24 is provided, a first storage chamber area 241 in the inner bore 30, which through the lower end face of the secondary piston 23 and through the connector 16 of the metal bellows 15 is limited to the valve needle 3.
  • This first storage chamber area 241 is formed via a housing 1 unthrottled connection bore 223 to a second storage chamber area 242 connected in the first bore section 31 adjacent housing area 34 around the drive unit is arranged around.
  • the second storage chamber area 242 is arranged by two concentric to each other Bellows 25, 26 and a pressure ring 27 limited, which in turn is held by a compression spring 28 which a perforated plate 29 is supported in the housing area 34.
  • the Inner bellows 25 is between the inside of the pressure ring 27 and the rear face of the primary piston 21, which protrudes from the first bore section 31, shrink wrapped.
  • the outer bellows 26 is on the outside of the pressure ring 27 and to one of the first bore section 31 adjacent housing stage 30 welded. In the housing stage 30 between the two bellows 25, 26 opens the connection bore 223.
  • the hydraulic chamber 22 and the storage chamber 24 protrude a throttle gap 36 which between the peripheral wall of the Secondary piston 23 and the inner wall of the second bore section 32 is formed, and via a throttle gap 37, the between the peripheral wall of the primary piston 21 and the Inner wall of the first bore section 31 is formed is in communication with each other. Furthermore, the entire interior the transmission element with a hydraulic fluid filled, which is under a slight positive pressure, the is generated by the compression spring 28, which over the pressure ring 27 acts on the second storage chamber area 242. In front filling the interior of the transmission element with hydraulic fluid this hydraulic fluid is degassed, to dissolve any gas bubbles in the liquid.
  • the injection valve with the transmission element works like follows:
  • the piezoelectric Multilayer actuator 8 via the electrical feed lines 19 loaded. This causes the piezoelectric multilayer actuator 8 deflects axially and via the head plate 10 Primary piston 21 down into the first bore section 31 pushes in.
  • the spring constant c of the hydraulic chamber 22 is greater, the lower its height and the larger its effective cross-sectional area. Simulation calculations have also shown that thermal and pressure-induced expansion of a maximum of 50 ⁇ m can be expected.
  • the spring constant c of the hydraulic chamber 22 should be in the range of 10 8 N / m or higher. This means that, assuming that the compressibility of the hydraulic fluid ⁇ is approx. 10 * 10 -10 m 2 / N, which corresponds to a typical value for a hydraulic fluid, the desired value for the spring constant c z. B. can be achieved with a cross-sectional area of 1 cm 2 and a height of 0.1 cm.
  • the exact design of the height and cross-sectional area of the hydraulic chamber 22 can, however, be adapted to the circumstances in the injection valve in order to achieve a compact design.
  • the hydraulic chamber 22 By designing the hydraulic chamber 22 as a rigid piston is the movement of the primary piston 21 by the piezoelectric Multilayer actuator 8 is triggered, low loss directly on transfer the secondary piston 23.
  • the movement of the secondary piston 23 is only slightly different from that in the first Hydraulic fluid storage chamber area 241 damped due to the excess hydraulic fluid the rapid rise in pressure in the first storage chamber area 241 via the unthrottled connecting bore 223 in the second storage chamber area 242 is pushed away.
  • the two Bellows 25, 26 arranged concentrically to one another that delimit the second storage chamber region 242 are radial very stiff, but very soft in the axial direction.
  • Metal bellows are preferably used as spring bellows, which essentially the metal bellows 15 of the needle feedthrough correspond.
  • the movement of the secondary piston triggered by the primary piston 21 23 moves the one connected to the secondary piston 23 Valve needle 3 against the restoring force of the nozzle spring 5 after below, so that the valve plate 4 lifts off the valve seat 2 and the injector opens.
  • the elongation of the piezoelectric Multilayer actuator 8 is in a shift of the secondary piston 23 and thus the valve needle 3 translated, which is the ratio of the pressure-effective areas of the primary piston 21 and the secondary piston 23 in the hydraulic chamber 22 corresponds.
  • the injection process is ended by the piezoelectric Multilayer actuator 8 via the electrical leads 19 again is discharged.
  • There the primary piston 21 is fixed to the drive unit via the head plate 10 is connected by the contraction of the piezoelectric multilayer actuator 8 also the primary piston 21 withdrawn from the first bore section 31.
  • the inventive design of the transmission element it is still possible to automatically switch all thermal, by setting effects of the drive unit or caused to compensate for pressure-related changes in length in the injection valve.
  • the throttle gap 36 on the secondary piston 23 is also designed so that during the thermal processes, which are in the time range of a few seconds to minutes, hydraulic fluid via the throttle column 36, 37 between the storage chamber 24 and the hydraulic chamber 22 can be replaced.
  • the hydraulic fluid in the hydraulic chamber 22 and the Storage chamber 24 is, as shown, under a small Overpressure generated by the compression spring 28, the acts on the pressure ring 27 of the second storage chamber region 242. Because of this slight overpressure at the same time bubble-free filling of the hydraulic fluid into the transmission element ensures that the fast Switching operations of the piezoelectric multilayer actuator 8 are not lead to cavitation in the hydraulic fluid.
  • the Compression spring 28 can alternatively also partially or completely a spring action of the bellows 25, 26 to be replaced.
  • throttling gaps 36, 37 each to be provided only on the secondary piston 23 or on the primary piston 21, so an exchange of hydraulic fluid between one of the storage chamber areas 241, 242 and the hydraulic chamber 22 takes place.
  • throttle gaps can also be used be provided on the primary piston 21 and on the secondary piston 23.
  • FIG 1 is an outwardly opening injection valve shown.
  • the inventive Transmission element with one inside opening injector.
  • FIG 2 is then the valve needle 3 by the nozzle spring 5 instead under tension under compression so that the Valve needle 3 at rest with a conical needle tip 104 on a conical valve seat 102 in the injection valve sits below which an injection hole 103 for injection of fuel is formed in the internal combustion engine.
  • the injection valve shown in Figure 2 is exactly the opposite operated to the injection valve shown in Figure 1.
  • the injection valve is designed so that when the piezoelectric multilayer actuator is not controlled 8 the injector is closed, d. H. the Needle tip 102 is pressed against the valve seat 104.
  • the piezoelectric multilayer actuator 8 controlled. This is long itself and thereby pushes the primary piston 21 into the first Bore section 31.
  • the resulting pressure increase in the hydraulic chamber 22 is via the throttle gap 36 Secondary piston 23 and the throttle gap 37 on the primary piston 21, for an exchange of hydraulic fluid with the Storage chamber 24 worry, balanced. This turns it then a state of equilibrium again within fractions of a second a, at which the injector continues to be closed remains.
  • the injection valve is operated in such a way that the valve needle 3 opens whenever the piezoelectric Multilayer actuator 8 is discharged and thereby the Primary piston 21 and thus also the secondary piston 23 on which the valve needle 3 is attached, withdraw.
  • Figure 3 shows a further embodiment of a outside opening injection valve, with the base pressure on the hydraulic fluid in the transmission element through a Compression spring 128 arranged centrally in the primary piston 121 is generated becomes.
  • the primary piston 121 is cup-shaped, being between the head plate 10 and a bottom surface of the primary piston 121 an additional third storage chamber area 243 is formed.
  • the primary piston 121 is arranged in such a way that its bottom surface is in extends the first bore portion 31.
  • the sidewalls the primary piston 21, on the other hand, are essentially located in the Housing area 34 in which the drive unit is arranged.
  • the compression spring arranged in the third storage chamber area 243 128 is between the head plate 10 of the drive unit and a pressure plate 127 located in the third storage chamber area 243 is provided, welded.
  • the compression spring 128 becomes the third storage chamber area 243 protected by a metal bellows 125.
  • the second storage chamber area 242 is between the top plate 10 of the piezoelectric multilayer actuator 8 and Housing stage 35 around the wall of the primary piston 121 educated. This second storage chamber area 242 is over a connection bore 136 with the third storage chamber area 243 connected in the primary piston 121. How it works of the transmission element shown in Figure 3 corresponds to that shown in Figure 1 transmission element. By providing an internal compression spring 128 can, however, be a higher one Base pressure and a possibly more compact design of the transmission element can be achieved.
  • the metal bellows 125 and the top plate 10 limited gas-tight volume also be pressurized with a pressurized gas, so that instead the mechanical compression spring 128 is a gas compression spring for maintaining the basic pressure in the storage chamber areas 241, 242, 243.

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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)
EP00127847A 1999-12-22 2000-12-19 Dispositif hydraulique pour transmettre le mouvement d'un actuateur Expired - Lifetime EP1111230B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19962177 1999-12-22
DE19962177A DE19962177A1 (de) 1999-12-22 1999-12-22 Hydraulische Vorrichtung zum Übertragen einer Aktorbewegung

Publications (3)

Publication Number Publication Date
EP1111230A2 true EP1111230A2 (fr) 2001-06-27
EP1111230A3 EP1111230A3 (fr) 2002-05-08
EP1111230B1 EP1111230B1 (fr) 2004-11-24

Family

ID=7933914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00127847A Expired - Lifetime EP1111230B1 (fr) 1999-12-22 2000-12-19 Dispositif hydraulique pour transmettre le mouvement d'un actuateur

Country Status (3)

Country Link
EP (1) EP1111230B1 (fr)
DE (2) DE19962177A1 (fr)
ES (1) ES2228394T3 (fr)

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003012283A1 (fr) * 2001-07-30 2003-02-13 Robert Bosch Gmbh Soupape d'injection de carburant
WO2003016702A2 (fr) * 2001-08-17 2003-02-27 Siemens Aktiengesellschaft Actionneur servant d'unite d'entrainement a un injecteur et procede de fabrication de l'injecteur
WO2003031799A1 (fr) * 2001-10-02 2003-04-17 Robert Bosch Gmbh Soupape d'injection de carburant
WO2003052261A1 (fr) * 2001-12-17 2003-06-26 Siemens Aktiengesellschaft Dispositif pour translater une deviation d'un actionneur, notamment pour une soupape d'injection
WO2003054377A1 (fr) * 2001-12-05 2003-07-03 Robert Bosch Gmbh Soupape d'injection de carburant
WO2003054382A1 (fr) * 2001-12-05 2003-07-03 Robert Bosch Gmbh Soupape d'injection de carburant
WO2003064848A1 (fr) * 2002-01-30 2003-08-07 Robert Bosch Gmbh Soupape d'injection de carburant
WO2003089781A1 (fr) * 2002-04-22 2003-10-30 Siemens Aktiengesellschaft Dispositif de dosage pour fluides, notamment soupape d'injection d'automobile
EP1445470A1 (fr) * 2003-01-24 2004-08-11 Siemens VDO Automotive S.p.A. Dispositif de dosage avec conecteur électrique
EP1445472A1 (fr) * 2003-02-04 2004-08-11 Siemens VDO Automotive S.p.A. Dispositif de dosage avec joint dynamique
EP1445473A1 (fr) * 2003-02-04 2004-08-11 Siemens VDO Automotive S.p.A. Dispositif de dosage avec joint dynamique
EP1452729A1 (fr) * 2003-02-28 2004-09-01 Robert Bosch Gmbh Injecteur de carburant
WO2004081372A1 (fr) * 2003-03-11 2004-09-23 Robert Bosch Gmbh Soupape d'injection de carburant
EP1491760A1 (fr) * 2003-06-25 2004-12-29 Robert Bosch Gmbh Soupape d'injection de carburant
WO2005010343A1 (fr) * 2003-07-19 2005-02-03 Robert Bosch Gmbh Coupleur hydraulique et soupape d'injection de carburant
WO2005026528A1 (fr) * 2003-09-12 2005-03-24 Siemens Aktiengesellschaft Element de compensation hydraulique
EP1526275A1 (fr) * 2003-10-21 2005-04-27 Robert Bosch Gmbh Injecteur de carburant
EP1544454A1 (fr) * 2003-12-15 2005-06-22 Robert Bosch Gmbh Injecteur de carburant
EP1555427A2 (fr) * 2004-01-13 2005-07-20 Delphi Technologies, Inc. Injecteur de carburant
EP1571328A2 (fr) 2004-03-02 2005-09-07 Siemens Aktiengesellschaft Soupape d'injection
WO2005116442A1 (fr) 2004-05-28 2005-12-08 Siemens Aktiengesellschaft Soupape d'injection et son procede de production
WO2006003048A1 (fr) 2004-07-01 2006-01-12 Robert Bosch Gmbh Injecteur 'common rail'
EP1624181A1 (fr) * 2004-07-30 2006-02-08 Robert Bosch Gmbh Injecteur pour une rampe commune
WO2006069899A1 (fr) * 2004-12-23 2006-07-06 Robert Bosch Gmbh Injecteur de carburant avec commande directe de l'element d'injecteur
DE102005046778A1 (de) * 2005-09-29 2007-04-12 Siemens Ag Dosiervorrichtung für Fluide, insbesondere Kraftfahrzeug-Einspritzventil
WO2007107599A1 (fr) * 2006-03-23 2007-09-27 Siemens Aktiengesellschaft Dispositif de transfert de pression
WO2007110267A2 (fr) * 2006-03-28 2007-10-04 Robert Bosch Gmbh Injecteur de carburant
EP1503246A3 (fr) * 2003-07-31 2008-12-31 Canon Kabushiki Kaisha Dispositif de positionnement, appareil d'exposition et méthode de fabrication d'un dispositif
US7516906B2 (en) 2004-01-13 2009-04-14 Delphi Technologies, Inc. Fuel injector
DE102004026171B4 (de) * 2004-05-28 2010-05-20 Continental Automotive Gmbh Einspritzventil
WO2010112275A1 (fr) * 2009-03-31 2010-10-07 Siemens Aktiengesellschaft Dispositif hydraulique de transmission de course
WO2011045298A1 (fr) * 2009-10-12 2011-04-21 Ulrich Stieler Kunststoff Service E.K. Injecteur de fluide
US20110215176A1 (en) * 2009-03-24 2011-09-08 Meyer Andrew E Fuel injector having a body with asymmetric spray-shaping surface
WO2012158153A1 (fr) * 2011-05-13 2012-11-22 Meyer Andrew E Injecteur de carburant
WO2013075876A1 (fr) * 2011-11-24 2013-05-30 Robert Bosch Gmbh Soupape de dosage d'un milieu en écoulement
US9488194B2 (en) 2010-09-13 2016-11-08 Siemens Aktiengesellschaft Hydraulic temperature compensator and hydraulic lift transmitter

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10136807A1 (de) * 2001-07-27 2003-02-13 Bosch Gmbh Robert Brennstoffeinspritzventil
DE10225686B4 (de) * 2002-06-10 2005-08-04 Siemens Ag Hubübertragungselement für ein Einspritzventil
DE10232193A1 (de) * 2002-07-16 2004-02-05 Robert Bosch Gmbh Brennstoffeinspritzventil
DE10321693A1 (de) * 2003-05-14 2004-12-02 Robert Bosch Gmbh Brennstoffeinspritzventil
DE10353639A1 (de) † 2003-11-17 2005-06-16 Robert Bosch Gmbh Brennstoffeinspritzventil
DE10357454A1 (de) * 2003-12-03 2005-07-07 Robert Bosch Gmbh Brennstoffeinspritzventil
DE10357189A1 (de) * 2003-12-08 2005-07-07 Robert Bosch Gmbh Brennstoffeinspritzventil
RU2739150C1 (ru) * 2020-03-07 2020-12-21 Максим Николаевич Карпов Ультразвуковой пьезоэлектрический преобразователь

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19708304A1 (de) 1997-02-28 1998-09-10 Siemens Ag Vorrichtung zur Übertragung einer Bewegung und Einspritzventil mit einer Vorrichtung zur Übertragung einer Bewegung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0656162B2 (ja) * 1987-03-03 1994-07-27 トヨタ自動車株式会社 ストロ−ク可変装置
DE29708546U1 (de) * 1997-05-14 1998-09-10 Fev Motorentech Gmbh & Co Kg Elektrischer Festkörperaktuator mit hydraulischer Übersetzung
DE19744235A1 (de) * 1997-10-07 1999-04-08 Fev Motorentech Gmbh & Co Kg Einspritzdüse mit piezoelektrischem Aktuator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19708304A1 (de) 1997-02-28 1998-09-10 Siemens Ag Vorrichtung zur Übertragung einer Bewegung und Einspritzventil mit einer Vorrichtung zur Übertragung einer Bewegung

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003012283A1 (fr) * 2001-07-30 2003-02-13 Robert Bosch Gmbh Soupape d'injection de carburant
WO2003016702A3 (fr) * 2001-08-17 2003-10-23 Siemens Ag Actionneur servant d'unite d'entrainement a un injecteur et procede de fabrication de l'injecteur
WO2003016702A2 (fr) * 2001-08-17 2003-02-27 Siemens Aktiengesellschaft Actionneur servant d'unite d'entrainement a un injecteur et procede de fabrication de l'injecteur
WO2003031799A1 (fr) * 2001-10-02 2003-04-17 Robert Bosch Gmbh Soupape d'injection de carburant
US7066399B2 (en) 2001-10-02 2006-06-27 Robert Bosch Gmbh Fuel injector
KR100935810B1 (ko) * 2001-12-05 2010-01-08 로베르트 보쉬 게엠베하 연료 분사 밸브
JP2005513334A (ja) * 2001-12-05 2005-05-12 ローベルト　ボツシユ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング 燃料噴射弁
WO2003054382A1 (fr) * 2001-12-05 2003-07-03 Robert Bosch Gmbh Soupape d'injection de carburant
US6892956B2 (en) 2001-12-05 2005-05-17 Robert Bosch Gmbh Fuel injection valve
US7040550B2 (en) 2001-12-05 2006-05-09 Robert Bosch Gmbh Fuel injection valve
WO2003054377A1 (fr) * 2001-12-05 2003-07-03 Robert Bosch Gmbh Soupape d'injection de carburant
US7077377B2 (en) 2001-12-17 2006-07-18 Siemens Aktiengesellschaft Device for the translation of a displacement of an actuator, in particular for an injection valve
WO2003052261A1 (fr) * 2001-12-17 2003-06-26 Siemens Aktiengesellschaft Dispositif pour translater une deviation d'un actionneur, notamment pour une soupape d'injection
WO2003064848A1 (fr) * 2002-01-30 2003-08-07 Robert Bosch Gmbh Soupape d'injection de carburant
US7309032B2 (en) 2002-04-22 2007-12-18 Siemens Aktiengesellschaft Dosing device for fluids, especially a motor vehicle injection valve
WO2003089781A1 (fr) * 2002-04-22 2003-10-30 Siemens Aktiengesellschaft Dispositif de dosage pour fluides, notamment soupape d'injection d'automobile
EP1445470A1 (fr) * 2003-01-24 2004-08-11 Siemens VDO Automotive S.p.A. Dispositif de dosage avec conecteur électrique
US7385335B2 (en) 2003-01-24 2008-06-10 Siemens Vdo Automotive Spa Metering device with an electrical connector
EP1445473A1 (fr) * 2003-02-04 2004-08-11 Siemens VDO Automotive S.p.A. Dispositif de dosage avec joint dynamique
EP1445472A1 (fr) * 2003-02-04 2004-08-11 Siemens VDO Automotive S.p.A. Dispositif de dosage avec joint dynamique
EP1452729A1 (fr) * 2003-02-28 2004-09-01 Robert Bosch Gmbh Injecteur de carburant
WO2004081372A1 (fr) * 2003-03-11 2004-09-23 Robert Bosch Gmbh Soupape d'injection de carburant
EP1491760A1 (fr) * 2003-06-25 2004-12-29 Robert Bosch Gmbh Soupape d'injection de carburant
WO2005010343A1 (fr) * 2003-07-19 2005-02-03 Robert Bosch Gmbh Coupleur hydraulique et soupape d'injection de carburant
EP1503246A3 (fr) * 2003-07-31 2008-12-31 Canon Kabushiki Kaisha Dispositif de positionnement, appareil d'exposition et méthode de fabrication d'un dispositif
WO2005026528A1 (fr) * 2003-09-12 2005-03-24 Siemens Aktiengesellschaft Element de compensation hydraulique
EP1526275A1 (fr) * 2003-10-21 2005-04-27 Robert Bosch Gmbh Injecteur de carburant
EP1544454A1 (fr) * 2003-12-15 2005-06-22 Robert Bosch Gmbh Injecteur de carburant
US7516906B2 (en) 2004-01-13 2009-04-14 Delphi Technologies, Inc. Fuel injector
EP1555427A3 (fr) * 2004-01-13 2005-08-17 Delphi Technologies, Inc. Injecteur de carburant
EP1555427A2 (fr) * 2004-01-13 2005-07-20 Delphi Technologies, Inc. Injecteur de carburant
EP1571328A2 (fr) 2004-03-02 2005-09-07 Siemens Aktiengesellschaft Soupape d'injection
DE102004026171B4 (de) * 2004-05-28 2010-05-20 Continental Automotive Gmbh Einspritzventil
WO2005116442A1 (fr) 2004-05-28 2005-12-08 Siemens Aktiengesellschaft Soupape d'injection et son procede de production
US7418949B2 (en) 2004-07-01 2008-09-02 Robert Bosch Gmbh Common rail injector
WO2006003048A1 (fr) 2004-07-01 2006-01-12 Robert Bosch Gmbh Injecteur 'common rail'
EP1624181A1 (fr) * 2004-07-30 2006-02-08 Robert Bosch Gmbh Injecteur pour une rampe commune
WO2006069899A1 (fr) * 2004-12-23 2006-07-06 Robert Bosch Gmbh Injecteur de carburant avec commande directe de l'element d'injecteur
DE102005046778A1 (de) * 2005-09-29 2007-04-12 Siemens Ag Dosiervorrichtung für Fluide, insbesondere Kraftfahrzeug-Einspritzventil
DE102005046778B4 (de) * 2005-09-29 2011-07-21 Siemens AG, 80333 Dosiervorrichtung für Fluide, insbesondere Kraftfahrzeug-Einspritzventil
WO2007107599A1 (fr) * 2006-03-23 2007-09-27 Siemens Aktiengesellschaft Dispositif de transfert de pression
WO2007110267A2 (fr) * 2006-03-28 2007-10-04 Robert Bosch Gmbh Injecteur de carburant
WO2007110267A3 (fr) * 2006-03-28 2008-04-10 Bosch Gmbh Robert Injecteur de carburant
US20110215176A1 (en) * 2009-03-24 2011-09-08 Meyer Andrew E Fuel injector having a body with asymmetric spray-shaping surface
US9366208B2 (en) 2009-03-24 2016-06-14 Andrew E Meyer Electronically controlled fuel injector with fuel flow rate substantially independent of fuel inlet pressure
US8950694B2 (en) 2009-03-24 2015-02-10 Andrew E. Meyer Fuel injector having a body with asymmetric spray-shaping surface
US8905334B2 (en) 2009-03-31 2014-12-09 Siemens Aktiengesellschaft Hydraulic stroke transmitter
WO2010112275A1 (fr) * 2009-03-31 2010-10-07 Siemens Aktiengesellschaft Dispositif hydraulique de transmission de course
WO2011045298A1 (fr) * 2009-10-12 2011-04-21 Ulrich Stieler Kunststoff Service E.K. Injecteur de fluide
US9488194B2 (en) 2010-09-13 2016-11-08 Siemens Aktiengesellschaft Hydraulic temperature compensator and hydraulic lift transmitter
EP2707592A4 (fr) * 2011-05-13 2015-06-17 Andrew E Meyer Injecteur de carburant
WO2012158153A1 (fr) * 2011-05-13 2012-11-22 Meyer Andrew E Injecteur de carburant
CN103930667A (zh) * 2011-11-24 2014-07-16 罗伯特·博世有限公司 用于定量配给流动介质的阀
JP2014533800A (ja) * 2011-11-24 2014-12-15 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツングＲｏｂｅｒｔ Ｂｏｓｃｈ Ｇｍｂｈ 流れのある媒体を調量供給する弁
WO2013075876A1 (fr) * 2011-11-24 2013-05-30 Robert Bosch Gmbh Soupape de dosage d'un milieu en écoulement
US9822750B2 (en) 2011-11-24 2017-11-21 Robert Bosch Gmbh Valve for metering in a flowing medium

Also Published As

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EP1111230A3 (fr) 2002-05-08
EP1111230B1 (fr) 2004-11-24
ES2228394T3 (es) 2005-04-16
DE19962177A1 (de) 2001-07-12
DE50008741D1 (de) 2004-12-30

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