WO2003052261A1 - Vorrichtung zum übersetzen einer auslenkung eines aktors, insbesondere für ein einspritzventil - Google Patents
Vorrichtung zum übersetzen einer auslenkung eines aktors, insbesondere für ein einspritzventil Download PDFInfo
- Publication number
- WO2003052261A1 WO2003052261A1 PCT/DE2002/004465 DE0204465W WO03052261A1 WO 2003052261 A1 WO2003052261 A1 WO 2003052261A1 DE 0204465 W DE0204465 W DE 0204465W WO 03052261 A1 WO03052261 A1 WO 03052261A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- chamber
- housing
- ring
- bellows
- Prior art date
Links
- 238000002347 injection Methods 0.000 title claims abstract description 14
- 239000007924 injection Substances 0.000 title claims abstract description 14
- 238000006073 displacement reaction Methods 0.000 title abstract 2
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims description 20
- 230000007774 longterm Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 6
- 230000036316 preload Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
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
- F02M2200/70—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
- F02M2200/70—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
- F02M2200/705—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with means for filling or emptying hydraulic chamber, e.g. 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
- 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
- F02M2200/707—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with means for avoiding fuel contact with actuators, e.g. isolating actuators by using bellows or diaphragms
Definitions
- the invention relates to a device for translating a deflection of an actuator according to the preamble of patent claim 1.
- Injectors such as piezoelectrically operated injection valves use an actuator whose maximum deflection when actuated is relatively small. So that an injection needle or a servo valve for actuating an injection needle can be actuated safely despite the small deflection of the piezoelectric actuator, a translation of the deflection of the actuator is required. Appropriate translation devices are used for the translation.
- a hydraulic device for transmitting an actuator movement has a first piston element which is fixedly connected to an actuator.
- a second piston element is provided which is connected to an actuator.
- a hydraulic chamber is provided between the first piston element and the second piston element.
- a storage chamber is formed, which is connected to the hydraulic chamber via a throttle gap.
- the storage chamber comprises a pressure-loaded storage chamber area, the area limits of which are elastic.
- the range limits are represented by bellows arrangements, which are preloaded against the housing of the injection valve by a preload spring.
- the prestressing of the storage chamber area provides a pressure in the storage chamber, which ensures reliable filling of the hydraulic chamber.
- a fuel injector is known that a piezoelectric or agnetostrictive Ak- gate has.
- a lifting device with two reciprocating pistons is provided between the actuator and a valve needle.
- the lifting device is hermetically sealed against a valve interior.
- the first reciprocating piston is operatively connected to the actuator and has a hollow cylinder shape open on one side, the opening of which is arranged facing away from the actuator.
- the second reciprocating piston is guided in the cylinder opening.
- the first reciprocating piston is in turn located in a hollow cylindrical housing.
- a transfer chamber is formed between an end surface of the housing and the first and second pistons.
- the second piston is operatively connected to an injection needle.
- a piston chamber is formed between the first and the second piston.
- a second bellows is fastened tightly all around, so that a first pressure chamber is formed.
- a first bellows is fastened tightly all round, so that a second pressure chamber is formed.
- the piston chamber is connected to the first and to the second pressure chamber via openings.
- a tension spring is provided in the piston chamber and biases the first and second pistons in opposite directions.
- the injector described is relatively large due to the arrangement of the tension spring.
- the piston chamber has a relatively large dead volume. The dead volume leads to a restriction of the movement dynamics of the first and the second piston.
- a device for translating a deflection of an actuator according to the preamble of claim 1 is known from the applicant's unpublished patent application entitled "Closed Hydraulic System” with the file number 10046323.1.
- a tensioning element is arranged in the piston chamber between a first and a second piston.
- the dead volume in the piston chamber is also relatively large in this embodiment. The relatively large dead volume leads to a Impairment of the movement dynamics of the first and the second piston.
- the object of the invention is to provide a device for translating a deflection of an actuator, which has a smaller dead volume in the piston chamber.
- An advantage of the invention is that the dead volume in the piston chamber is reduced.
- the advantage of the invention is achieved in that the tensioning element for prestressing the second piston is arranged outside the piston chamber. Since the tensioning element is arranged outside the piston chamber, the piston chamber can be made significantly smaller. The smaller piston chamber achieves an overall greater dynamic in the transmission of the movement of the first piston and to the second piston.
- a tension spring is provided as the tensioning means, which is clamped between the housing and a contact ring.
- the bearing ring is attached to a piston rod of the second piston.
- the bearing ring preferably has the shape of a sleeve on which a support collar is formed.
- the tension spring lies on the support collar.
- the bearing ring is connected to the piston rod via a lock washer. Tilting of the tension spring is avoided by using a sleeve-shaped contact ring.
- the formation of a support collar creates a secure contact surface for the tension spring provided.
- a locking washer a safe and simple connection technology is also formed between the contact ring and the piston rod. This ensures reliable operation of the translation device with great long-term stability.
- a second tension spring is provided, which is also arranged outside the piston chamber and is clamped between the housing and a piston rod of the first piston. In this way, a preload of the first piston in the opposite direction to the preload of the second piston is achieved. An initial position of the first piston is thus reliably established. As a result, it is not necessary, for example, to firmly connect the first piston to an actuator.
- the second tension spring is arranged outside the housing and is clamped between the first and the second bellows and the piston rod of the first piston. In this way, in addition to the pretension of the piston rod, a pressure is also generated in the compensation chamber, which is limited by the first and second bellows.
- the piston chamber is hydraulically connected via a bore to a sealing area which is arranged outside the housing and is preferably sealed by a bellows which is connected to the housing and the second piston in a sealed manner all around. This enables the piston chamber to be emptied quickly.
- the piston chamber is additionally hydraulically connected to the compensation chamber via a bore. The connection to the compensation chamber also enables the fluid to flow out of the piston chamber quickly. This enables the first piston to move against the second piston without a greater counterforce.
- Another advantageous embodiment consists in closing the housing via a ring, a piston rod of the first piston being guided through the opening of the ring.
- the ring preferably has a closable bore for filling the device with fluid.
- the figure shows a schematic cross section through the device according to the invention for transmitting a deflection of an actuator to an actuator.
- the transmission device according to the invention can be used with any type of actuator and actuator, but is particularly suitable for use in an injection valve, for example for controlling a servo valve by a piezoelectric actuator.
- a first piston 1 is provided, which has a sleeve shape that is open on one side.
- the sleeve-shaped part of the piston delimits a piston chamber 3 into which a second piston 2 is guided.
- the first and the second pistons 1, 2 delimit the piston chamber 3.
- the first piston 1 is in turn guided in a cylindrical chamber 48 of a housing 4 which has an end face 5 on the face of the first piston 1.
- An opening 6 is made in the end face 5, through which a piston rod 7 of the second piston 2 is guided.
- the piston rod 7 has a smaller diameter than the second piston 2.
- the piston rod 7 passes over an annular shoulder 8 into the widened diameter of the second piston 2.
- a transfer chamber 10 is formed between the end face 5, the shoulder 8 and an annular end face 9 of the first piston 1.
- the transmission chamber 10 is hydraulically connected to the piston chamber 3 via a first sealing gap 11, which is formed between a side wall of the second piston 2 and an inner wall of the first piston 1.
- the piston chamber 3 is delimited by an end surface 47 of the first piston 1 and an end surface 49 of the second piston 2.
- the transfer chamber 10 has a second sealing gap 12, which is between the outer wall of the first piston
- the further sealing gap 13 is formed between an end ring 14 and a first section 16 of a second piston rod 17.
- the first piston 3 merges via a second shoulder 15 into the first section 16 of the second piston rod 17.
- the first section 16 is essentially cylindrical and merges via a third shoulder 21 into a second section 18 of the second piston rod 17.
- the second section 18 of the second piston rod 17 has a substantially cylindrical shape and has a smaller diameter than the first section 16.
- the end ring 14 has a circumferential annular groove 20 which is formed on the outer edge region of the end ring 14 and is assigned to an annular end face 19 of the housing 4.
- the inner diameter of the end ring 4, which is tapered by the annular groove 20, is preferably matched to the inner diameter of the cylindrical recess of the housing 4. This enables a good fit and thus a good seal between the housing 4 and the end ring 14.
- the end ring 14 is connected to the housing 4, for example, via a circumferential, tight weld seam.
- a first bellows 22 which is essentially sleeve-shaped, is tightly attached to the third shoulder 21 with a first end area.
- the first bellows 22 is preferably made of a metallic material and is therefore preferably welded to the metallic second piston
- a second end of the first bellows 22 is connected in a circumferentially tight manner to a connecting ring 23.
- the second section 18 of the second piston rod 17 is guided through the opening of the connecting ring 23.
- the connecting ring 23 has a fourth shoulder 24, via which the diameter of the connecting ring 23 increases.
- a second bellows 25, which is essentially cylindrical, is tightly connected to the connecting ring 23.
- the second bellows 25 is connected with its other edge region in a circumferentially tight manner to an end face of the end ring 14 which faces the connection ring 23. In this way, a compensation chamber 26 is formed between the first and second bellows 22, 25 and the connecting ring 23.
- the compensation chamber 26 is hydraulically connected to the transmission chamber 10 via the further sealing gap 13 and the second sealing gap 12.
- the hydraulic connection is designed in such a way that pressure differences between the transfer chamber 10 and the compensation chamber 26 are only compensated for if the pressure differences last for a minimum time.
- the sealing gaps and the selected geometries define the minimum time in such a way that the time required for transmitting a force from the first piston to the second piston must be exceeded before pressure equalization takes place. This ensures that the power transmission from the first piston to the second piston 1, 2 is possible with almost no losses, but pressure differences that are long-term are nevertheless compensated for. This enables complete filling of the transfer chamber 10 even in the event of temperature fluctuations or wear. This ensures that the transfer chamber 10 is always completely filled with a transfer fluid such as e.g. a pressure oil is filled.
- a first bore 27 is made in the first piston 1 as far as the further sealing gap 13.
- the compensation chamber 26 is thus connected to the piston chamber 3 via a hydraulic connection.
- the hydraulic connection light a quick pressure equalization between the equalizing chamber 26 and the piston chamber 3rd
- a locking groove 28 is made, in which a locking washer 29 is fastened.
- a second connecting ring 30 bears against the locking washer 29.
- a first spring 31 is clamped between the second and the first connecting ring 30, 23. The first spring 31 exerts a prestressing force on the first connecting ring 23 and thus on the first and second bellows 22, 25. As a result, the transmission fluid, which is located in the compensation chamber 26, is pressurized.
- the end ring 14 has a continuous second bore 32. Via the second bore 32, transmission fluid can be filled from the outside into the third sealing gap 13 and the volumes hydraulically connected to the third sealing gap 13. After all the volumes that are hydraulically connected to the sealing gap 13 are filled, the second bore 32 is closed by a closing element 33.
- the closing element 33 is designed in the form of a ball.
- the housing 4 tapers in the outer diameter in the area of the first piston rod 7 via a shoulder to form a ring part
- the ring part 34 surrounds the first piston rod 7.
- the first piston rod 7 extends up to a predetermined distance from the ring part 34.
- the ring part 34 has an annular second end face
- a third end ring 36 is tightly connected to the piston rod 7 all round.
- the third end ring 36 has an annular third end face 37 which faces the ring part 34.
- a third fold bellows 38 is formed, which is essentially in the form of a cylinder and is tightly sealed all around with one end region on the second end face of the ring part 34 and with the other end region on the third end face 37 of the third end ring 36. In this way, a third sealing gap 50, which is formed between the housing 4 and the piston rod 7 and is connected to the transmission chamber 10, is reliably sealed.
- a second locking groove 39 is formed, in which a second locking washer 40 is introduced.
- a fourth connecting ring 41 rests on an inside of the second securing washer 40, which faces the housing 4.
- a second spring 42 is clamped between the fourth connecting ring 41 and the housing 4.
- the second spring 42 rests on a fourth end face 43 of the housing 4, which is formed by the shoulder of the housing 4, in which the housing 4 merges from a larger outer diameter to the ring part 34 with the smaller outer diameter.
- the second piston 2 has a third bore 44 made centrally to the end face 49 of the second piston 2, which extends from the end face 49 into the piston rod 7 into an edge region of the piston rod 7, which is arranged at the same height as the third bellows 38 is. There is thus a hydraulically conductive connection between the piston chamber 3 and an equalizing space 45, which is delimited by the piston rod 7 and the third bellows 38.
- the piston chamber is designed in the form of a blind hole with a blind hole 46 running in the center.
- the blind hole 46 is hydraulically connected to the third sealing gap 13 via the first bore 27.
- the translation device works as follows: The volumes that are generated in the transmission device are formed and hydraulically connected to the transfer chamber 10 are completely filled with a liquid medium, which is preferably incompressible.
- a rest position the first piston 1 is held by the first spring 31 in a starting position with pretension.
- the starting position is set, for example, by the first piston bearing the second shoulder 15 on the connecting ring 14.
- the second piston 2 is in a rest position in an initial length in which the second piston 2 is biased by the second spring 42.
- the rest position is determined, for example, by the second piston 2 resting with the shoulder 8 on the end face 5 of the housing 4.
- the piston rods 7, 17 of the first and second pistons 1, 2 are biased in the rest position by the housing 4 in the opposite direction.
- the volume formed between the pistons 1, 2 and the housing 4 and between the bellows 22, 25 and between the third bellows 38 and the piston rod 7 is filled with a transmission medium, in particular with a hydraulic fluid.
- the filling takes place via the second bore 32, which is then closed with the closing element 33.
- the idle state of the first and second pistons is preferably also determined in that the first and second piston rods 7, 17 rest against an actuator or an actuator, so that there is a play-free operative connection between the actuator and the actuator.
- the actuator can be designed, for example, as a piezoelectric actuator. If the actuator is now actuated, the actuator displaces the first piston 1 in the direction of the housing 4. Due to the hydraulic coupling of the second piston 2 via the transmission chamber 10 to the first piston 1, the second piston 2 and the piston rod 7 of the second piston 2 also moved away from the housing against the direction of movement of the first piston 1. The piston rod is standing 7 in operative connection with an injection needle, then the injection needle is lifted from a sealing seat, for example by the movement of the piston rod 7, so that fuel can be injected into an internal combustion engine. In another embodiment, a servo valve is opened or closed, for example, by actuating the second piston, so that a pressure change can act on an injection needle and the injection needle is thereby lifted off a sealing seat.
- the volume in the piston chamber 3 can be made small. Due to the small volume of the piston chamber 3, the volume is reduced overall, which is filled with transmission medium. This eliminates unnecessary dead volume in the carrier reduced. The functionality of the transmission device is thus improved.
- the arrangement of the first spring 31 preferably applies pressure to the transmission medium in the compensation chamber 26. This ensures a safe and quick filling of the transmitter chamber 10 with the transmission medium. A play-free coupling between the first and second pistons 1, 2 and a corresponding actuator or actuator is thus reliably ensured. Since the first spring 31 is coupled to the piston rod 17 of the first piston 1, the pressure in the compensation chamber 26 is increased when the first piston 1 is actuated by the actuator. As a result, the overall pressure from the outside onto the transfer chamber 10 is increased when the transfer device is actuated, so that the escape of transfer medium from the transfer chamber 10 is made more difficult.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02804848A EP1456527B1 (de) | 2001-12-17 | 2002-12-05 | Vorrichtung zum übersetzen einer auslenkung eines aktors, insbesondere für ein einspritzventil |
DE50204348T DE50204348D1 (de) | 2001-12-17 | 2002-12-05 | Vorrichtung zum übersetzen einer auslenkung eines aktors, insbesondere für ein einspritzventil |
US10/864,037 US7077377B2 (en) | 2001-12-17 | 2004-06-09 | Device for the translation of a displacement of an actuator, in particular for an injection valve |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10162045A DE10162045B4 (de) | 2001-12-17 | 2001-12-17 | Vorrichtung zum Übersetzen einer Auslenkung eines Aktors, insbesondere für ein Einspritzventil |
DE10162045.4 | 2001-12-17 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/864,037 Continuation US7077377B2 (en) | 2001-12-17 | 2004-06-09 | Device for the translation of a displacement of an actuator, in particular for an injection valve |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003052261A1 true WO2003052261A1 (de) | 2003-06-26 |
Family
ID=7709584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2002/004465 WO2003052261A1 (de) | 2001-12-17 | 2002-12-05 | Vorrichtung zum übersetzen einer auslenkung eines aktors, insbesondere für ein einspritzventil |
Country Status (4)
Country | Link |
---|---|
US (1) | US7077377B2 (de) |
EP (1) | EP1456527B1 (de) |
DE (2) | DE10162045B4 (de) |
WO (1) | WO2003052261A1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7500648B2 (en) | 2003-02-27 | 2009-03-10 | Robert Bosch Gmbh | Fuel-injection valve |
DE10360451B4 (de) * | 2003-02-27 | 2014-01-09 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
DE10347769B3 (de) * | 2003-10-14 | 2005-01-13 | Siemens Ag | Stellgerät |
DE10350062A1 (de) * | 2003-10-27 | 2005-05-25 | Robert Bosch Gmbh | Aktormodul und Verfahren zu dessen Herstellung |
EP1690025B1 (de) * | 2003-12-05 | 2017-05-03 | Continental Automotive GmbH | Vorrichtung, verfahren zum herstellen der vorrichtung, kammervorrichtung und bertragervorrichtung |
DE10357189A1 (de) * | 2003-12-08 | 2005-07-07 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
DE10358723A1 (de) * | 2003-12-15 | 2005-07-07 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
EP1555427B1 (de) * | 2004-01-13 | 2007-10-10 | Delphi Technologies, Inc. | Kraftstoffeinspritzventil |
DE602005002758T2 (de) | 2004-01-13 | 2008-07-24 | Delphi Technologies, Inc., Troy | Kraftstoffeinspritzventil |
DE102005025953A1 (de) * | 2005-06-06 | 2006-12-07 | Siemens Ag | Einspritzventil und Ausgleichselement für ein Einspritzventil |
DE102010027278B4 (de) * | 2010-07-15 | 2020-07-02 | Metismotion Gmbh | Thermisch volumenneutraler Hubübertrager sowie Dosierventil mit einem solchen Hubübertrager und Verwendung des Dosierventils |
US8683982B2 (en) | 2010-08-10 | 2014-04-01 | Great Plains Diesel Technologies, L.C. | Programmable diesel fuel injector |
DE102011088282A1 (de) * | 2011-12-12 | 2013-06-13 | Continental Automotive Gmbh | Einspritzventil |
EP2954569A4 (de) | 2013-02-06 | 2016-11-02 | Great Plains Diesel Technologies L C | Magnetostriktiver aktor |
DE102014226673A1 (de) * | 2014-12-19 | 2016-06-23 | Robert Bosch Gmbh | Hydraulische Kopplereinheit zur Steuerung eines Ventils |
Citations (5)
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DE19950760A1 (de) * | 1999-10-21 | 2001-04-26 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
EP1111230A2 (de) * | 1999-12-22 | 2001-06-27 | Siemens Aktiengesellschaft | Hydraulische Vorrichtung zum Übertragen einer Aktorbewegung |
DE10002270C1 (de) * | 2000-01-20 | 2001-06-28 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
WO2001096733A1 (de) * | 2000-06-14 | 2001-12-20 | Robert Bosch Gmbh | Ventil zum steuern von flüssigkeiten |
DE10046323A1 (de) * | 2000-09-19 | 2002-04-18 | Siemens Ag | Geschlossenes Hydrauliksystem |
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US4560871A (en) * | 1983-12-22 | 1985-12-24 | Marquest Medical Products, Inc. | Actuator for control valves and related systems |
US4803393A (en) * | 1986-07-31 | 1989-02-07 | Toyota Jidosha Kabushiki Kaisha | Piezoelectric actuator |
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 |
DE19709794A1 (de) * | 1997-03-10 | 1998-09-17 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
DE29708546U1 (de) * | 1997-05-14 | 1998-09-10 | FEV Motorentechnik GmbH & Co. KG, 52078 Aachen | Elektrischer Festkörperaktuator mit hydraulischer Übersetzung |
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DE19746143A1 (de) * | 1997-10-18 | 1999-04-22 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
DE19843534A1 (de) * | 1998-09-23 | 2000-03-30 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE19946678A1 (de) * | 1999-09-29 | 2001-04-19 | Knorr Bremse Systeme | Hydropneumatischer Kraftverstärker, insbesondere Kupplungskraftverstärker und darauf aufgebautes Kupplungssystem sowie hierfür geeignetes Verfahren |
DE19946828C1 (de) * | 1999-09-30 | 2001-07-12 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
DE10118053A1 (de) * | 2001-04-11 | 2002-10-24 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
-
2001
- 2001-12-17 DE DE10162045A patent/DE10162045B4/de not_active Expired - Fee Related
-
2002
- 2002-12-05 EP EP02804848A patent/EP1456527B1/de not_active Expired - Lifetime
- 2002-12-05 DE DE50204348T patent/DE50204348D1/de not_active Expired - Lifetime
- 2002-12-05 WO PCT/DE2002/004465 patent/WO2003052261A1/de not_active Application Discontinuation
-
2004
- 2004-06-09 US US10/864,037 patent/US7077377B2/en not_active Expired - Fee Related
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DE19950760A1 (de) * | 1999-10-21 | 2001-04-26 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
EP1111230A2 (de) * | 1999-12-22 | 2001-06-27 | Siemens Aktiengesellschaft | Hydraulische Vorrichtung zum Übertragen einer Aktorbewegung |
DE10002270C1 (de) * | 2000-01-20 | 2001-06-28 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
WO2001096733A1 (de) * | 2000-06-14 | 2001-12-20 | Robert Bosch Gmbh | Ventil zum steuern von flüssigkeiten |
DE10046323A1 (de) * | 2000-09-19 | 2002-04-18 | Siemens Ag | Geschlossenes Hydrauliksystem |
Also Published As
Publication number | Publication date |
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DE10162045A1 (de) | 2003-06-26 |
DE10162045B4 (de) | 2005-06-23 |
EP1456527B1 (de) | 2005-09-21 |
US7077377B2 (en) | 2006-07-18 |
DE50204348D1 (de) | 2006-02-02 |
EP1456527A1 (de) | 2004-09-15 |
US20040237519A1 (en) | 2004-12-02 |
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