EP3430272A1 - Speichervorrichtung und hydropneumatische federung - Google Patents
Speichervorrichtung und hydropneumatische federungInfo
- Publication number
- EP3430272A1 EP3430272A1 EP17703026.9A EP17703026A EP3430272A1 EP 3430272 A1 EP3430272 A1 EP 3430272A1 EP 17703026 A EP17703026 A EP 17703026A EP 3430272 A1 EP3430272 A1 EP 3430272A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- separating piston
- storage device
- storage
- memory
- piston
- 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.)
- Pending
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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
- B60G17/0416—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics regulated by varying the resiliency of hydropneumatic suspensions
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/064—Units characterised by the location or shape of the expansion chamber
- F16F9/065—Expansion chamber provided on the upper or lower end of a damper, separately there from or laterally on the damper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/40—Constructional features of dampers and/or springs
- B60G2206/42—Springs
- B60G2206/422—Accumulators for hydropneumatic springs
-
- 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
- F15B2201/32—Accumulator separating means having multiple separating means, e.g. with an auxiliary piston sliding within a main piston, multiple membranes or combinations thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
- F16F2228/066—Variable stiffness
Definitions
- the invention relates to a storage device and a hydropneumatic suspension with such a storage device.
- Such storage devices are known in the art, for example, by DE 10 2012 009 668 B3.
- two storage devices in the form of a double-piston accumulator are arranged in a storage housing, in which the pistons are coupled to each other via a piston rod.
- the memory devices differ in the prevailing pressure level. Therefore, one storage device is called a low-pressure accumulator and the other storage device is called a high-pressure accumulator.
- a hydraulic fluid can be stored under a high pressure and retrieved again.
- the invention is therefore based on the objects to show an improved storage device and a hydropneumatic suspension with such a storage device having a storage characteristic that is optimally adapted to at least two load ranges.
- a memory device consisting of at least two combined into one unit memory devices that have independent own memory characteristics, in particular due to different biasing pressures, wherein the respective storage characteristics combined give an overall storage characteristic, according to which a fluid in the unit is storable and retrievable from this.
- a fluid in the unit is storable and retrievable from this.
- both gases and liquids can be stored in the storage device.
- the memory characteristic can advantageously be adapted to different load ranges.
- Each of the storage devices can be optimally adjusted to a load range.
- the memory devices act independently of each other and are not mechanically rigidly coupled.
- the storage devices complement one another, resulting in an overall storage characteristic curve according to which the fluid can be stored and retrieved in the unit. In this way, in a compact and inexpensive construction, a highly efficient and long-lived memory device optimized for at least two load ranges.
- each of the storage devices forms a pressure accumulator, in particular a hydraulic accumulator, the separating element separates two media spaces from each other.
- the storage devices are accommodated in a common storage housing to form the assembly.
- the memory devices can be arranged in parallel or in series in the same memory housing.
- a partition can advantageously also be arranged so that it separates more than two media spaces from each other.
- complex, but also simple storage characteristics of the storage device can be formed as required. These can also have more than two load ranges and different gradients, for example, flatter or steeper, in the respective load ranges.
- the respective separating element may be a separating piston of a storage device designed as a piston accumulator.
- Piston accumulators can be produced particularly cost-effectively and are characterized by a long service life.
- the memory characteristics of piston actuators have a particularly continuous, easy-to-calculate, exponential course without discontinuities.
- one of the separating pistons on the inside of the accumulator housing and the further separating piston following in the row are guided longitudinally movably on the piston wall of the preceding separating piston.
- This arrangement allows a particularly space-saving design of the storage device.
- low-cost manufacturable turned parts can be installed.
- the design in the form of mutually arranged separating piston makes it possible to store even highest pressures up to 450 bar, for example, in the storage device.
- a first of the media spaces can be formed with a compressible medium.
- One of the separating pistons may define within the storage housing another of the media spaces with an incompressible medium.
- the other separating piston may define a third of the media spaces with another compressible medium.
- the guided on the inside (or inner wall) of the storage housing separating piston is designed as a hollow cylinder, the free space is penetrated by a partition.
- the partition may be arranged at the end of the hollow cylinder or in a central region thereof. It can be detachably fixed there, for example with at least one securing ring, in particular a snap ring, or permanently, for example by welding, gluing or soldering.
- the guided within the one separating piston further separating piston can have a stop formed by the partition wall of a separating piston. Any attachment of the partition is considered part of the same. In this way, the further separating piston can be brought to bear against the one separating piston, resulting in a transition of the overall storage characteristic.
- the storage device which is compressed to the maximum, then becomes ineffective at pressures in excess of the maximum pressure.
- the separating piston with its one partition wall can have a larger pressure-exerted cross-sectional area than the separating piston following in the row.
- the pressurized cross-sectional area is decisive for the characteristic of the storage characteristic in addition to the biasing pressure. For a larger cross-sectional area must be a lesser Vorspanndruck be provided in the respective media room with the compressible medium. Larger cross-sectional areas also allow operation of the storage device at higher operating pressures.
- Each of the media spaces filled with a compressible medium preferably has its own memory characteristic, in particular as a function of its volume and its preload pressure. It is thus possible to adapt the preload pressure to the respective requirements. In the media rooms different biasing pressures can be introduced, but they can also have the same biasing pressures. It is also conceivable to adjust the preload pressures dynamically, for example by the optional connection of additional pressure accumulators or by a targeted temperature control.
- the storage device according to the invention can be installed in particular in industrial trucks as part of a suspension. Accordingly, the invention also includes a hydropneumatic suspension with at least one suspension cylinder, which can be acted upon by different loads, wherein a working space of the suspension cylinder is connected to a media space for an incompressible medium of the storage device.
- a hydropneumatic suspension with at least one suspension cylinder, which can be acted upon by different loads, wherein a working space of the suspension cylinder is connected to a media space for an incompressible medium of the storage device.
- Fig. 1 is a longitudinal sectional view of a hydropneumatic suspension system
- FIG. 2 shows a schematic representation of a longitudinal section through a storage device according to the invention
- 3 to 7 are graphs of the storage characteristics of two storage devices and a resulting total storage characteristic at different bias pressures.
- FIGS. 1 and 2 each show a longitudinal section through a memory device 10 according to the invention comprising two memory devices 14, 16 which are combined to form a module 1 2 and independently of one another have their own memory characteristic lines 18, 20, in particular due to different biasing pressures , wherein the respective storage characteristics 18, 20 combined result in a total storage characteristic curve 22 (cf., FIGS. 3 to 7), according to which a fluid can be stored in and retrieved from the unit 1 2.
- Fig. 1 is in addition to a hydropneumatic suspension 24, for example, for a material handling vehicle with at least one suspension cylinder 26 which is acted upon with different loads M shown.
- a working space 28 of the suspension cylinder 26 is media leading to a media space 30 for an incompressible medium such as hydraulic oil of the storage device 10 is connected.
- the storage device 10 has a storage housing 32, which consists of a tubular hollow cylindrical part 34, in the end of which disk-shaped end pieces 36, 38 are inserted. For sealing, the end pieces 36, 38 on circumferential grooves 40, are inserted into the sealing rings 42. In the left end piece 36 in the image plane, a connection 44 is provided for the introduction of the fluid to be stored in the storage device 10.
- the storage housing 32 surrounds an interior 46 in which the storage devices 14, 16 are arranged.
- the storage devices 14, 16 are formed in the form of hydraulic accumulators, each having a separating element 48, 50, which separate a total of three media spaces 30, 52, 54 from each other.
- the separating elements 48, 50 are as separating piston 56, 58, so that the storage devices 14, 16 are formed as a piston accumulator.
- the separating piston 58 is guided longitudinally movably on an inner side 60 of the storage housing 34.
- three grooves 64 are provided on its peripheral side 62, wherein in the axial direction seen outer grooves 64 guide rings 66 and in the middle groove 64, a sealing ring 68 are inserted.
- the guided on the inside 60 of the storage housing 34 separating piston 58 is formed as a hollow cylinder 70, the free interior 72 is penetrated by a partition wall 74.
- the one separating piston 58 is therefore in the longitudinal section shown H-shaped.
- the partition wall 74 is releasably fixed in the hollow cylinder 70 by two retaining rings 76, for example in the form of snap rings.
- the circlips 76 are inserted into inner circumferential grooves 78 of the hollow cylinder 70.
- the partition wall 74 has a peripheral groove 80 for sealing the one separating piston 58 into which a sealing ring 82 is inserted.
- the further separating piston 56 which follows in a fictitious series is guided in a longitudinally movable manner on the inner piston wall 57 (FIG. 2) of the separating piston 58 preceding in the row of pistons.
- the further separating piston 56 is cup-shaped, with the wall 84 of the further separating piston 56 partially delimiting the interior media space 52.
- the separating piston 56 has two circumferential grooves 86, wherein in the one groove 86, a guide ring 88 and in the other groove 86, a sealing ring 90 is arranged.
- the further separating piston 56 guided within the one separating piston 58 has a stop point 92 formed by the dividing wall 74 of a separating piston 58.
- any fixing means 76 of the dividing wall 74 are regarded as parts thereof.
- This stop 92 forms the right in the image plane end position of the other separating piston 56 in a Trennkolberi 58. End is in the hollow cylinder 70 of a separating piston 58 another locking ring 94 is provided which forms a second stop point 96 for the further separating piston 56 and prevents the further separating piston 56 can move out of the one separating piston 58.
- separating piston 56 to form further media spaces a separating piston guided in it, to obtain such a fine gradation for the characteristic of the biasing pressure, with the imaginary series of pistons then basically extend arbitrarily.
- a first 52 of the media spaces is filled with a compressible medium.
- the separating pistons 56, 58 also define another 30 of the media spaces with the incompressible fluid.
- the other separating piston 58 finally delimits a third 54 of the media spaces within the storage housing 32, which in turn is filled with a compressible medium.
- the compressible media are in particular gaseous media, preferably in the form of nitrogen (N 2).
- the incompressible medium is a liquid, such as a hydraulic fluid, such as an oil.
- the media spaces 52 and 54 can also be filled with mutually different compressible media, so that different spring stiffnesses result for the respectively different gas columns in the respective piston storage space.
- Channels 100, 102, 104 in particular in the form of bores, are provided in end piece 36 opposite terminal 44 and in dividing wall 74 of one separating piston 58 and / or in a bottom 98 of further separating piston 56.
- filling valves 106, 108, 110 (FIG. 1) are arranged.
- filling valves in the form of non-return valves 1 12, 1 14, 1 16 can be used and by means of screw plugs (see Fig. 1) and Seals not shown in detail, the filling points 106, 108, 1 10 hermetically seal.
- the one separating piston 58 with its one partition wall 74 has a larger, with one of the media acted upon cross-sectional area A as the subsequent in the series further separating piston 58 with its cross-sectional area A2.
- Each of the media spaces 52, 54 filled with a compressible medium has its own memory characteristic, independently of the respective other media space 54, 52, in particular as a function of its volume and its predeterminable biasing pressure.
- the storage device according to the invention can be used for the hydropneumatic suspension 24 whose required function can basically be subdivided into two load ranges.
- the two memory devices 14, 16 can be used, which have volume-changeable media chambers 52, 54, each with a compressible medium.
- the first media space 52 formed between the separating pistons 56, 58 preferably operates in a lower load range, ie with a relatively low pretensioning pressure, while the third media space 54 generally operates in an upper load range and therefore has a higher pretensioning pressure.
- the further separating piston 56 comes into abutment against the stop wall 92 on the dividing wall 74 of the one separating piston 58.
- the one separating piston 58 moves in the image plane of Fig. 1 and 2 to the right, thereby reducing the volume of the third media space 54.
- the maximum filling of the storage device 10 with liquid ( Oil) via the second media space 30 is reached when the one separating piston 58 comes to the right in the image plane end piece 38 to the plant, resulting in a maximum len pretension! jerk on the gas side of the memory devices 14, 16 results.
- the biasing pressures in the media spaces 52, 54 By adjusting the biasing pressures in the media spaces 52, 54, individual memory identities of the memory devices 14, 16 can be generated, by means of which the memory device 10 can be operated in different load ranges with its own memory characteristics.
- the transition between the biasing pressures of the memory areas can preferably be continuous, but in case of need also unsteady, in particular with a kink or a jump, be configured. If the third media space 54 has a lower pretensioning pressure than the first media space 52 between the separating pistons 56, 58, a larger stroke and thus a flatter characteristic can be realized.
- the profiles of the memory characteristics 18, 20 of the individual memory devices 14, 16 and of the total memory characteristic 22 are shown by way of example in the form of graphs in FIGS. 3 to 7.
- the abscissa shows in each case the volume of the fluid stored in the storage device 10 in the media space 30, in this case a liquid in the form of hydraulic oil, in liters. A maximum of approximately 1.1 liters of liquid can be stored in the space 30 with the storage device 10 shown. On the ordinate, the accumulator pressure is indicated in bar. The mentioned pressure gradients are reproduced up to a maximum of 300 bar. It is understood that volume and pressure specifications refer to only one specific embodiment of a memory device 10 according to the invention and are intended merely to explain the underlying principle of the invention.
- the volume and pressure indications may be adapted to the particular application of the storage device, which need not be limited to application to the hydro-pneumatic suspension system.
- the biasing pressures in the media spaces 52, 54 for the compressible medium at 50 bar initially equal.
- the memory characteristic 18 of the first memory device 16 of the first media space 52 and the memory characteristic 20 of the second memory device 14 of the third Ruleraurnes 54 have starting from this with increasing filling of the media space 30 via the fluid-side stress of the suspension cylinder 26 caused by the load M to be moved in each case an exponential course , In this way, a total memory characteristic curve 22 results, which follows the course of the memory characteristic 18 of the first memory device 16 up to a pressure of 100 bar.
- FIG. 4 initially shows the same starting situation as in FIG. 3: both memory devices 14, 16 have a preloading pressure of 50 bar and the memory characteristics 18, 20 of the individual memory devices 14, 16 have the known exponential profile.
- the total memory characteristic 22 likewise follows the profile of the memory characteristic 18 of the first memory device 16 up to a stored volume of approximately 0.35 liters and a pressure of approximately 125 bar. At this point occurs a jump 1 18, in which the stored volume does not change, but the pressure increases up to 150 bar. Above this pressure, the course of the total storage characteristic 22 follows the course Run the memory characteristic 20 of the second memory device 14, but offset by a volume of 0.35 liters and a pressure of 100 bar.
- FIG. 5 The diagram of FIG. 5 is similar to FIGS. 3 and 4 with respect to the memory detection line 20 of the second. Memory device 14.
- the difference between the figures see is that the biasing pressure of the first memory device 16 is increased by 50 bar to 100 bar.
- the memory characteristic 18 of the first memory device 16 has an exponential profile, but is steeper compared to FIGS. 3 and 4. Because the pretensioning pressure of the second storage device 14 is less than the pretensioning pressure t of the first storage device 16, first the second storage device 14 is compressed, ie the one separating piston 58 is moved and the volume of the third media space 54 decreases. The position of the further separating piston 56 relative to a separating piston 58 initially does not change.
- the diagram of FIG. 6 differs from that of FIG. 5 in that the preloading pressure of the first storage device 16 is again increased by 50 bar to a total of 150 bar. This causes the characteristic of the memory characteristic 18 of the first memory device 16 to be steeper than in FIG. 5.
- the biasing pressure of the second memory device 14 is unchanged. This causes the course of the total memory characteristic curve 22 to follow the course of the memory characteristic curve 20 of the second memory device 14 until the pressure of the stored medium reaches the preload pressure of the first memory Memory device 16 exceeds. From this pressure, the first memory device 16 and the second memory device 14 are compressed together, resulting in a flatter exponential profile of the total memory characteristic curve 22 with respect to the memory characteristic 20 of the second memory device 14.
- This second section 120 of the total storage curve 22 terminates at a pressure of about 220 bar, because the further separating piston 56 abuts against the first separating piston 58 and the first media space 52 is maximally compressed. From this pressure, only the second memory device 14 can be further compressed. This means that the course of the total storage characteristic curve 22 has a discontinuity in the form of a bend 122 and, following this pressure of approximately 220 bar, again follows an exponential course such as that of the storage characteristic 20 of the second storage device 14.
- the diagram of FIG. 7 differs from that of FIG. 3 in that the prestressing pressure of the second storage device 14 is increased by an amount of 50 bar to a total of 100 bar. Otherwise, the memory characteristics 18, 20 again have an exponential profile. This difference causes the total memory characteristic curve 22 to initially follow the course of the memory characteristic curve 18 of the first memory device 16 until the pressure of the stored fluid exceeds the pretensioning pressure of the second memory device 14. From this pressure, in addition to the first memory device 16, the second memory device 14 is compressed, so that the total memory characteristic curve 22 has a shallower exponential profile after reaching the biasing pressure of the second memory device 14.
- the memory characteristic is thus advantageously adaptable to different load ranges.
- Each of the memory devices 10 can be optimally adjusted to a load range.
- the memory devices complement each other. lines 14, 16, so that there is an overall storage characteristic curve 22, according to which a fluid can be stored in the unit 12 and retrieved therefrom.
- a highly efficient and durable memory device 10 is provided in a compact and inexpensive construction, which is optimized for at least two load ranges with correspondingly connected hydraulic consumer.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Vehicle Body Suspensions (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016003153.0A DE102016003153A1 (de) | 2016-03-15 | 2016-03-15 | Speichervorrichtung und hydropneumatische Federung |
PCT/EP2017/000145 WO2017157501A1 (de) | 2016-03-15 | 2017-02-03 | Speichervorrichtung und hydropneumatische federung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3430272A1 true EP3430272A1 (de) | 2019-01-23 |
Family
ID=57963158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17703026.9A Pending EP3430272A1 (de) | 2016-03-15 | 2017-02-03 | Speichervorrichtung und hydropneumatische federung |
Country Status (5)
Country | Link |
---|---|
US (1) | US10648487B2 (de) |
EP (1) | EP3430272A1 (de) |
CN (1) | CN108779785B (de) |
DE (1) | DE102016003153A1 (de) |
WO (1) | WO2017157501A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017007444A1 (de) * | 2017-08-05 | 2019-02-07 | Hydac Technology Gmbh | Hydropneumatische Kolbenzylinderanordnung |
US10919384B2 (en) * | 2018-07-20 | 2021-02-16 | GM Global Technology Operations LLC | Mount assembly with electro-hydro-pneumatic switchable displacement elements |
US10994606B2 (en) * | 2018-07-20 | 2021-05-04 | GM Global Technology Operations LLC | Mount assembly with switchable displacement elements |
CN110374942B (zh) * | 2019-08-29 | 2023-09-12 | 山东科技大学 | 一种大容量皮囊式恒压蓄能器及其应用 |
CN111264133B (zh) * | 2020-03-01 | 2020-12-22 | 宁波奔野重工股份有限公司 | 一种双链开沟机可调式一体调距装置 |
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JPS5169766A (de) * | 1974-12-12 | 1976-06-16 | Yamaha Motor Co Ltd | |
US4273358A (en) * | 1979-04-02 | 1981-06-16 | Girling Limited | Suspension means for vehicles |
DE9001053U1 (de) * | 1990-01-31 | 1990-04-05 | Beinhauer, Uwe, 6380 Bad Homburg | Hydropneumatische Federung |
DE4226754A1 (de) | 1991-09-21 | 1993-03-25 | Bosch Gmbh Robert | Aufhaengungssystem fuer fahrzeuge |
DE10139192A1 (de) * | 2001-08-16 | 2003-03-06 | Hydac Technology Gmbh | Kolbenspeicher |
JP2006076469A (ja) | 2004-09-10 | 2006-03-23 | Toyota Motor Corp | サスペンション装置 |
SE528985C2 (sv) * | 2005-08-19 | 2007-04-03 | Oehlins Racing Ab | Metod att applicera skiljekolv i utrymme samt anordning vid sådan skiljekolv |
DE102006008175A1 (de) * | 2006-02-22 | 2007-08-23 | Hydac Technology Gmbh | Druckspeicher, insbesondere Pulsationsdämpfer |
DE102007031525B4 (de) * | 2007-07-06 | 2009-09-10 | Agco Gmbh | Kolbenspeicher zur Dämpfung von zwei Fluidsystemen |
ATE556228T1 (de) * | 2007-09-10 | 2012-05-15 | Cameron Int Corp | Druckkompensierte akkumulatorflasche |
DE202009018583U1 (de) * | 2009-08-19 | 2012-02-28 | Hemscheidt Fahrwerktechnik Gmbh & Co. Kg | Hydropneumatischer Kolbenspeicher |
DE102009050847A1 (de) * | 2009-10-19 | 2011-04-21 | Hydac Technology Gmbh | Vorrichtung zum impulsartigen Freigeben einer in einem Speichergehäuse bevorratbaren Fluidmenge |
EP2491275B1 (de) * | 2009-10-19 | 2018-12-12 | Hydac Technology Gmbh | Vorrichtung zum impulsartigen freigeben einer in einem speichergehäuse bevorratbaren fluidmenge |
DE102012009668B3 (de) | 2012-05-03 | 2013-08-14 | Hydac Technology Gmbh | Vorrichtung zur Energieeinsparung bei hydraulisch betätigbaren Arbeitsgerätschaften |
DE102015001435A1 (de) * | 2015-02-04 | 2015-08-20 | Daimler Ag | Hydrospeicher, insbesondere für ein Fahrwerk eines Fahrzeugs |
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2016
- 2016-03-15 DE DE102016003153.0A patent/DE102016003153A1/de active Pending
-
2017
- 2017-02-03 US US16/077,509 patent/US10648487B2/en active Active
- 2017-02-03 EP EP17703026.9A patent/EP3430272A1/de active Pending
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CN108779785A (zh) | 2018-11-09 |
CN108779785B (zh) | 2020-06-19 |
WO2017157501A1 (de) | 2017-09-21 |
US10648487B2 (en) | 2020-05-12 |
DE102016003153A1 (de) | 2017-09-21 |
US20190048897A1 (en) | 2019-02-14 |
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