WO2008061751A1 - Gasfedervorrichtung - Google Patents
Gasfedervorrichtung Download PDFInfo
- Publication number
- WO2008061751A1 WO2008061751A1 PCT/EP2007/010129 EP2007010129W WO2008061751A1 WO 2008061751 A1 WO2008061751 A1 WO 2008061751A1 EP 2007010129 W EP2007010129 W EP 2007010129W WO 2008061751 A1 WO2008061751 A1 WO 2008061751A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas spring
- spring device
- hydraulic
- container
- motor
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/18—Combined units comprising both motor and pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
- F15B1/16—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means in the form of a tube
- F15B1/165—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means in the form of a tube in the form of a bladder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/24—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with rigid separating means, e.g. pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/20—Accumulator cushioning means
- F15B2201/205—Accumulator cushioning means using gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/30—Accumulator separating means
- F15B2201/31—Accumulator separating means having rigid separating means, e.g. pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/30—Accumulator separating means
- F15B2201/315—Accumulator separating means having flexible separating means
- F15B2201/3152—Accumulator separating means having flexible separating means the flexible separating means being bladders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20507—Type of prime mover
- F15B2211/20515—Electric motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
- F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/625—Accumulators
Definitions
- the invention relates to a gas spring device for flaps, in particular of a motor vehicle.
- Gas spring devices of the type discussed here are known. They serve, for example, to open and close heavy doors in a vehicle, for example the tailgate of a motor vehicle, and also to hold it in its open position. It has been found that in many cases, such gas springs can not meet the demand for comfort: they do not allow automatic opening of such valves.
- the object of the invention is therefore to provide a gas spring device which does not have this disadvantage.
- a gas spring device which comprises the features mentioned in claim 1. So it is provided with a pump and a motor, which serves to drive the pump.
- a ausgestalte gas spring is characterized by the fact that it allows automatic opening of a flap. If the pump of the gas spring device is operated, an additional pressure can be built up, which serves to lift the flap.
- a gas spring accumulator is provided which on the one hand provides a desired overpressure in order to hold the flap connected to the gas spring device in any desired position, and on the other hand to ensure a pressure equalization during a movement of the gas spring device.
- a gas spring device in which the gas spring is designed as a bladder accumulator. This has two spaces divided by an elastic element, preferably an elastic membrane, one of which is in fluid communication with the oil in the container and the other contains a gas.
- a gas spring device which is characterized in that the gas spring accumulator is designed as a piston accumulator. This also has two rooms, one of which contains oil and the other gas. The two spaces are separated by a piston movable within the piston accumulator.
- a gas spring device which is characterized in that the gas spring storage itself is also housed in the container or part thereof. It is thus possible to accommodate a bladder accumulator in the interior of the container or to divide a portion of the interior of the container by a pressure-tight on the inner wall of the same piston and to fill the divided area with a pressurized gas.
- a gas spring device which is characterized in that the motor is designed as an electric motor, in particular as a brush motor.
- This embodiment may be designed particularly compact, especially when the engine is operated in the hydraulic oil, which is located in the container.
- a gas spring device that it is coupled to a hydraulic device comprising a piston and a piston rod attached thereto.
- a hydraulic device comprising a piston and a piston rod attached thereto.
- a gas spring device which is characterized in that the hydraulic device is attached directly to the container or preferably integrated in this. This makes it possible to realize a particularly compact gas spring device.
- gas spring device which has a hydraulic control, which is arranged upstream of the hydraulic device.
- a gas spring device which is provided with a control device.
- This serves to control the motor and / or the hydraulic control and is connected via a cable to the interior of the container.
- a so-called glass feedthrough is provided which is inserted into the wall.
- the cable coming from the control device is inserted and secured in a suitable manner, for example, soldered.
- a connecting cable which in turn is suitably attached to the glass duct and leads to the engine and / or to the hydraulic control, starts.
- Figure 1 shows a first embodiment of a gas spring device
- Figure 2 shows a second embodiment of a gas spring device
- FIG 3 shows a third embodiment of a gas spring device.
- the illustrated in Figure 1 first embodiment of the gas spring device 1 comprises a motor-pump unit, namely a motor 3 and driven by this by means of a drive shaft A pump 5, emanating from the two hydraulic lines 7 and 9.
- a hydraulic device not shown here, which in particular comprises a piston and a piston rod attached thereto.
- This is connected to a flap in particular of a motor vehicle and serves to actuate the flap and also to reduce the forces required during manual opening and closing.
- the motor 3 and the pump 5 are housed in a container 11, the interior 13 is filled with oil, preferably hydraulic oil and is under an overpressure. This is higher than the atmospheric pressure and is for example 100 bar.
- the inner space 13 is connected to a gas spring accumulator which is designed here as a bladder accumulator 15 and which comprises a first space 17 filled with overpressure gas and a second space 19 which are preferably separated from each other by an elastic membrane 21.
- the second space 19 communicates via a line 23 with the interior 13 of the container 11 in fluid communication and is also filled with oil. Hydraulic oil is preferably used for the gas spring device 1 of the type mentioned here.
- the area in the space 17 of the gas spring accumulator is thus impressed on the container 11. He must be chosen so high that a flap can be held in any position.
- the engine 3 in this exemplary embodiment is operated directly in the oil, ie not surrounded by its own protective cover. It is designed as an electric motor, this in turn can be designed as a brush motor o- as a brushless DC motor. This results in a particularly compact design.
- the gas spring device 1 also comprises a control device 25, which is connected here to the engine 3 via a glass feedthrough 27.
- This comprises a base body 29, which consists for example of metal and is welded to the wall 31 of the container 11.
- a passage 33 in the base body 29 serving as a partition glass body 35 is introduced, the pressure of the interior 13 closes tightly against the environment and are melted into serving as a conductor metal bushings.
- a cable 37 is inserted, the wires are soldered or welded to the metal bushings.
- a metal feedthrough is preferably provided for each wire of the cable.
- a connecting cable 39 is used which leads to the motor 3 and whose electrodes are soldered or welded to the metal bushings.
- the cable 37 and the connection cable 39 are connected to each other via the metal bushings, so that an electrical connection between the control device 25 and the motor 3 is provided.
- the glass body 35 is insulated from the main body 29.
- the cable 37 and the connection cable 39 are insulated from the main body 29 by their sheaths, which are made of plastic, for example.
- the gas spring device 1 has a motor 3, a driven by this pump 5, from this outgoing hydraulic lines 7 and 9, as well as an inserted into the wall 31 of the container 11 glass duct 27.
- a control device 25 is electrically connected to the motor 3.
- the exemplary embodiment of the gas spring device 1 illustrated in FIG. 2 has a gas spring accumulator designed as a piston accumulator 41, which replaces the bladder accumulator 15 according to FIG. 1 and preferably imprints a pressure on the container 11. It comprises a displaceable in the interior 13 of the container 11 piston 43, the pressure-tight manner over a suitable sealing means 45 relative to the inner surface 47 of the container 11. He thus separates the interior 13, which is filled with pressurized oil, from a space 49 which is filled with a pressurized gas.
- a gas spring accumulator designed as a piston accumulator 41, which replaces the bladder accumulator 15 according to FIG. 1 and preferably imprints a pressure on the container 11. It comprises a displaceable in the interior 13 of the container 11 piston 43, the pressure-tight manner over a suitable sealing means 45 relative to the inner surface 47 of the container 11. He thus separates the interior 13, which is filled with pressurized oil, from a space 49 which is filled with a pressurized gas.
- the piston accumulator 41 is integrated here in the container 11, so that it is very compact. It would also be conceivable to pressure-flange a piston accumulator to the wall 31 of the container 11.
- the third exemplary embodiment of the gas spring device 1 illustrated in FIG. 3 has, like the exemplary embodiments of FIGS. 1 and 2, a container 11, in the interior of which a motor 3 and a pump 5 driven by it are provided.
- a controller 25 is electrically connected to the motor 3 via a glass feedthrough 27 which is inserted into the wall 31 of the container 11.
- a gas spring accumulator In the interior 13 is also a gas spring accumulator, this is in the embodiment of Figure 3, however, formed as a bladder 15 having a first gas-filled space 17 and a second oil-filled space 19, wherein the spaces separated by an elastic membrane 21 are.
- the existing in the second space 19 oil is also in the interior 13 of the container, which is under pressure.
- a hydraulic control 51 is introduced in the interior 13 in the interior 13 in the interior 13 is still a hydraulic control 51 is introduced.
- a hydraulic device 53 is integrated into the container 11, so that despite the additional components, a very compact design of the gas spring device 1 is realized. Without great disadvantages, the hydraulic device 53 could also be flanged to the container 11. However, the gas spring device 1 is special compact, when the hydraulic device 53 is integrated directly into the container 11.
- the hydraulic device 53 has a piston 55, which bears tightly against the inner surface 47 of the wall 31 of the container 11 via a sealing device 57 and is displaceable therein.
- a piston rod 59 is attached on one side, so that the piston 55 on this side has an annular surface 61 which surrounds the piston rod 59. This is smaller than the piston rod 59 facing away from the surface 63 of the piston 55th
- the piston rod 59 is guided through a suitable sealing device 65 through the wall 31 of the container 11 to the outside and is connected for example to a flap, in particular of a motor vehicle.
- the piston 55 pressure-tightly separates a first chamber 67 surrounding the piston rod 59 from a second chamber 69, which is delimited by a transverse wall 71 from the remaining region of the container 11.
- the interior 13 of the container 11 thus has the area which encloses the motor 3, the pump 5, the gas spring accumulator, in this case the bladder accumulator 15, and the hydraulic control 51, as well as the spaces 67 and 69 of the hydraulic device 53.
- the pump 5 is connected via two hydraulic lines 7 and 9 to the hydraulic controller 51. This is connected via hydraulic lines T and 9 'to the hydraulic device 53, wherein the first hydraulic line 7' with the second space 69 and the second hydraulic line 9 'is connected to the first space 67.
- the function of the gas spring device 1 will be described in more detail, the structure of which has been explained in more detail with reference to FIGS. 1 to 3. It should again be noted that the same parts are provided with the same reference numerals, so that the following description is simplified.
- the pump 5 When the engine 3 is put into operation, it drives the pump 5 via the drive shaft A.
- the pump 5 is preferably designed to be reversible, so that it can carry oil from the interior 13 of the container 11 either via the hydraulic line T or via the hydraulic line 9 'to a hydraulic device 53, which is not shown in Figures 1 and 2.
- the hydraulic device 53 has two chambers 67 and 69 separated from each other by the piston 55, and that when a medium under pressure is introduced into the first chamber 67, the piston 55 is moved to the right in FIG upon introduction of a pressurized medium into the space 69, the piston 55 is moved to the left. Accordingly, the piston rod 59 is moved to the right or left and thus, for example, actuates a flap.
- the medium conveyed from the interior 13 of the container 11, which is preferably hydraulic oil, is fed directly to a hydraulic device 53, in the embodiment according to FIG. 3 via a hydraulic control 51.
- a hydraulic control 51 may be provided, that this then outside the container 11 and between the hydraulic lines 7 and 9 of the pump 5 and the hydraulic device 53 is arranged.
- the hydraulic likvorraum 53 is supplied via the hydraulic lines T and 9 'from the pump 5 with hydraulic oil.
- the piston rod 59 in the first space 67, the piston rod 59 is present, so that the volume of this space 67 is reduced by that of the piston rod 59.
- the piston 55 has on its left side an annular surface 61 which is smaller than the surface 63 on the right side thereof. If the medium is conveyed from the interior 13 of the container 11 into the left space 67 of the hydraulic device 53 by the pump 5 via the hydraulic control 51 and the hydraulic line 9 ', the piston 55 moves from left to right and displaces oil from the second space 69. It can be seen that when the piston 55 moves from left to right in the left-hand space 67, less oil must be introduced than is displaced from the right-hand space 69.
- the gas spring accumulator also serves to compensate for this volume difference: The gas present in the first space 17 is therefore compressed by the second medium 69 when the piston 55 is moved from left to right.
- FIGS. 1 and 2 The exemplary embodiments of the gas spring device 1 illustrated in FIGS. 1 and 2 are used in conjunction with hydraulic devices as explained with reference to FIG. In addition, hydraulic controls are preferably used in these two embodiments, as they were also explained with reference to FIG 3.
- Such a hydraulic control 51 thus serves to compensate for the operation of a hydraulic device 53, the different volumes of the spaces 67 and 69 and thus the different oil requirements in the displacement of the piston 55 to the right or left. They are used in conjunction with reversible pumps 5, which are driven by a motor 3. This is controlled by a control device 25, which sets a certain direction of rotation of the motor counterclockwise or clockwise. Depending on the direction of rotation of the motor 3, the reversible pump 5 feeds the space 67 or 69 with the given in the interior 13 of the container 11 medium, preferably hydraulic oil.
- the second space 69 is connected to the interior 13 of the container 11, simultaneously with the gas spring accumulator, which may be designed as a bladder accumulator 15 or piston accumulator 41. If the other space 69 with a reversal of the direction of rotation of the pump 5 with that in the interior 13 of the container 11 existing Medium fed, the opposite space 67 is in fluid communication with the interior 13 and the gas spring accumulator.
- the two hydraulic lines T and 9 ' which are from the hydraulic control 51 to the spaces 67 and 69, connected together and together with a line leading to the gas spring accumulator.
- This common line is connected to the two delivery lines of the pump 5, that is to say with the hydraulic lines 7 and 9 via a non-return valve, so that no oil can be fed into the common line via the hydraulic lines 7 and 9 from the pump 5, thus also not the gas spring storage.
- the piston rod 59 displaces oil from the space 67 via the piston Hydraulic line 9 ', while on the hydraulic line T oil is sucked into the space 69. It is sucked in here more oil, as displaced from the room 67. This additionally sucked oil is taken from the gas spring reservoir.
- the hydraulic control 51 preferably has a valve device, in particular a 5/3-way valve, which comprises a control piston with five hydraulic connections and three switching positions.
- This valve serves, upon activation of the pump 5 in one or the other direction, to supply oil from the interior 13 of the container 11 to the one space 67 or the other space 69 in order to move the piston 55 and thus the piston rod 59 in a desired direction relocate. It is displaced from the other room oil.
- a volume compensation takes place, as described above, via the gas spring accumulator.
- the hydraulic control 51 described here has a 5/3-way valve whose control piston is preloaded on both sides by a spring. But it is also conceivable to use valves, which are then controlled via the control device 25. In this case, an additional control line between the hydraulic controller 51 and the control device 25 would be provided.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112007002184T DE112007002184A5 (de) | 2006-11-23 | 2007-11-22 | Gasfedervorrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006057263 | 2006-11-23 | ||
DE102006057263.7 | 2006-11-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008061751A1 true WO2008061751A1 (de) | 2008-05-29 |
Family
ID=38998511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/010129 WO2008061751A1 (de) | 2006-11-23 | 2007-11-22 | Gasfedervorrichtung |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE112007002184A5 (de) |
WO (1) | WO2008061751A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020141265A1 (fr) * | 2019-01-04 | 2020-07-09 | 4Mc | Bloc de puissance pour l'actionnement d'un obturateur de vanne |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5279119A (en) * | 1991-02-25 | 1994-01-18 | Wickes Manufacturing Company | Hydraulic lock and bypass for vehicle hydraulic system |
WO1997013948A1 (en) * | 1995-10-06 | 1997-04-17 | Atoma International, Inc. | Hydraulic closure system for a motor vehicle and method for operating same |
EP0803630A2 (de) * | 1996-04-24 | 1997-10-29 | HOERBIGER GmbH | Hydraulische Betätigungsanordnung |
DE19740029A1 (de) * | 1997-09-11 | 1999-04-15 | Stabilus Gmbh | Aktives Stellsystem |
US5921604A (en) * | 1996-05-16 | 1999-07-13 | Applied Power Inc. | Hydraulic door operating system |
EP1083338A2 (de) * | 1999-09-10 | 2001-03-14 | Hoerbiger Hydraulik GmbH | Anordnung zur hydraulischen Betätigung eines beweglichen Bauteils an einem Fahrzeug |
-
2007
- 2007-11-22 WO PCT/EP2007/010129 patent/WO2008061751A1/de active Application Filing
- 2007-11-22 DE DE112007002184T patent/DE112007002184A5/de not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5279119A (en) * | 1991-02-25 | 1994-01-18 | Wickes Manufacturing Company | Hydraulic lock and bypass for vehicle hydraulic system |
WO1997013948A1 (en) * | 1995-10-06 | 1997-04-17 | Atoma International, Inc. | Hydraulic closure system for a motor vehicle and method for operating same |
EP0803630A2 (de) * | 1996-04-24 | 1997-10-29 | HOERBIGER GmbH | Hydraulische Betätigungsanordnung |
US5921604A (en) * | 1996-05-16 | 1999-07-13 | Applied Power Inc. | Hydraulic door operating system |
DE19740029A1 (de) * | 1997-09-11 | 1999-04-15 | Stabilus Gmbh | Aktives Stellsystem |
EP1083338A2 (de) * | 1999-09-10 | 2001-03-14 | Hoerbiger Hydraulik GmbH | Anordnung zur hydraulischen Betätigung eines beweglichen Bauteils an einem Fahrzeug |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020141265A1 (fr) * | 2019-01-04 | 2020-07-09 | 4Mc | Bloc de puissance pour l'actionnement d'un obturateur de vanne |
Also Published As
Publication number | Publication date |
---|---|
DE112007002184A5 (de) | 2009-07-16 |
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