EP1334280B1 - Hydrospeicher - Google Patents
Hydrospeicher Download PDFInfo
- Publication number
- EP1334280B1 EP1334280B1 EP01994545A EP01994545A EP1334280B1 EP 1334280 B1 EP1334280 B1 EP 1334280B1 EP 01994545 A EP01994545 A EP 01994545A EP 01994545 A EP01994545 A EP 01994545A EP 1334280 B1 EP1334280 B1 EP 1334280B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- valves
- hydraulic accumulator
- take
- switchable
- 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.)
- Expired - Lifetime
Links
Images
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
- F15B1/22—Liquid port constructions
-
- 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
- F15B1/027—Installations or systems with accumulators having accumulator charging devices
- F15B1/033—Installations or systems with accumulators having accumulator charging devices with electrical control means
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
- F15B2013/004—Cartridge valves
-
- 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
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/41—Liquid ports
- F15B2201/411—Liquid ports having valve means
-
- 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
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/415—Gas ports
- F15B2201/4155—Gas ports having valve means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7781—With separate connected fluid reactor surface
- Y10T137/7784—Responsive to change in rate of fluid flow
- Y10T137/7792—Movable deflector or choke
Definitions
- the invention relates to a hydraulic accumulator, in particular piston accumulator, with the features of the preamble of claim 1.
- hydraulic accumulators One of the main tasks of hydraulic accumulators is, among other things, certain Volume of pressurized fluids to receive a hydraulic system and return them to the system on call.
- a hydraulic accumulator come here regularly piston accumulator, bladder accumulator, Diaphragm storage but also weight and spring loaded storage in use.
- this hydraulic accumulators can be a variety of Realize tasks such as energy storage, shock, vibration and Pulsation damping, energy recovery, volume flow compensation Etc..
- valve control units which are regularly provided with switching or directional valves are for controlling the fluid flow to and from the hydraulic accumulator.
- Hydraulic accumulator is regularly to a piping with fluid lines connected to the fluid-carrying connection between the memory and establish the valve control unit.
- Disadvantages of the known Solution is to exist in the form of leakage problems due to the increased number of connections between hydraulic accumulator piping and valve control unit and is also in the additional cost for the pipeline network to see fluid lines. Especially with tight
- problems with dimensioned installation conditions Variety of the mentioned components to accommodate obvious and with each other fluid leading to connect.
- there are different manufacturers are responsible for the hydraulic accumulators, the piping and / or the valves of the valve control unit, it is particularly important Make the installation on site to adjustment difficulties.
- a hydraulic accumulator is known, in particular in the form of a device for pressure regulation.
- the known hydraulic accumulator solves the tasks, on the one hand the pressure in the memory to hold on a given pressure, on the other hand, the said Memory to protect against any accidental overpressure.
- the known hydraulic accumulator within a valve receptacle extending in the longitudinal axis of the hydraulic accumulator, a valve spool in the manner of a hollow rifle, which receives in the middle of the high pressure and the is exposed at one of its ends to be regulated operating pressure. At its other end it rests against a support body on which an adjustable Spring applies a holding force.
- the known valve arrangement is integral part of the lower half of the memory, which with the upper housing half screwed to form the hydraulic accumulator housing is.
- the separator is in the known solution of a formed rubber-elastic membrane, which is centered with a closing body is provided so that in the direction of movement of the separating element and the Switching direction of the switching valve runs.
- valve control unit for maintenance purposes which contains the switching valve, together with the lower half of the housing to remove or provide for a replacement, what the manufacturing and maintenance costs in the known solution elevated.
- valve control unit with the known switching valve geometrically large dimensions, only one valve function can be obtained to exert on the control of the separating element.
- EP-A-0 816 142 and by US-A-5,342,080 are generic Hydraulic accumulator known according to the feature configuration of The preamble of claim 1.
- This is with the known solutions a modular use of designed as a common parts switching valves achieved, so that despite low geometric dimensions of Valve control unit a plurality of switching functions with respect to a Achieve hydraulic accumulator.
- the one switching valve serve the control of the separating element and the respective other switching valve be used for other tasks, for example, for the control of the gas volume in the gas space of the hydraulic accumulator.
- each further switching valve also solve other switching tasks related to adjacent fluid power devices, for example in the form of Cooling pumps, hydraulic cylinder devices etc ..
- valve seats are formed substantially the same that the Control block with an extension and flush with the inner circumference the storage enclosure engages in this, and that the storage enclosure with its one free end against a shoulder of the control block, at the extension begins, this can be a secure seal the Connection between storage enclosure and control block extension to reach. Furthermore, about the paragraph is an accurate attachment the storage enclosure with the other control block possible and the Storage enclosure is securely guided along the extension of the control block. An unwanted separation of storage housing and valve control unit is thus avoided with certainty.
- Hydro curtains limited the control block with its extension the fluid space, wherein the control block has at least one fluid channel, with its one free end opens into the fluid space and with its other free end is connected to the switching valve. Because the control block goes directly into the fluid space, are the free ways for the Pressure medium dimensioned small and thus are fast reaction times for reached the hydraulic accumulator.
- the hydraulic accumulator is designed in the manner of a piston accumulator.
- This has a storage housing 10 with a arranged therein Gas space 12 and a fluid space 14.
- the gas space 12 is opposite the fluid space 14 via a separating element 16 in the form of a piston part separated, the longitudinally displaceable along the inner periphery of the storage enclosure 10 is guided, so that the ratio of gas space 12 to Fluid space 14 is held variable.
- the separating element 16 formed as a hollow part and has a corresponding recess in the interior 18 on.
- the gas space 12 closed at the top by a cover part 20, which has a central bore 22 has a working gas, such as nitrogen gas, in the gas space 12 can be introduced.
- the pertinent central bore 22 is then sealed via a closure valve or the like (not shown), being about the shut-off valve from time to time, the amount of gas in the gas space 12 verifiable and refillable.
- valve control unit 26 has two switching valves, wherein the first switching valve 28 and the second switching valve by the reference numeral 30 is provided.
- the pertinent valve control unit 26 is thus an integral part of the storage enclosure 10, for which the Control block 24 is provided with a projection 32, which in flush system engages with the inner periphery of the storage case 10 in this. Further is provided that the storage enclosure 10 with its one free End 34 abuts a shoulder 36 of the control block 24, on which the extension 32 starts. Compared to the other outer diameter of the control block 24 is therefore the engaging in the storage housing 10 extension 32 reduced in diameter according to the downgrading on the paragraph 36.
- valve seats (29,31) substantially are formed the same that the control block (24) with an extension (32) and flush with the inner circumference of the storage enclosure (10) engages in this and that the storage housing (10) with its one free end (34) on a shoulder (36) of the control block (24) is applied, on which the extension (32) begins.
- the control block 24 defines with the upper end of the extension 32 the Fluid space 14 as seen in the direction of the figure down.
- the storage enclosure 10, the spaces 12 and 14, the lid part 20, the piston part 16 and the extension 32 are substantially as cylindrical components are formed and extend along a common longitudinal axis 38 of the hydraulic accumulator.
- the control block 24 further includes a fluid channel 40, which is arranged off-center to the longitudinal axis 38 and the with its one free end opens into the fluid space 14 and with its other free end is connected to the first switching valve 28.
- Cross to the fluid channel 40 is running in the control block 24, a cross terminal 42 present to the fluid supply line, for example as a component a hydraulic circuit, could be connected.
- the first switching valve 28 is then connected, wherein in a switching position, the fluid-conducting connection between Cross port 42 and fluid channel 40 is released and in the other Switch position is considered locked.
- the first Switching valve 28 designed as so-called. 2/2-way valve. It would be too conceivable here other valves, such as directional spool valves, valves with Damping od. Like. To install depending on the intended use.
- a further second switching valve 30, which in the present Case is also formed in the manner of a 2/2-way valve.
- the second Switching valve 30 has two side ports 44,46, which like the cross port 42 emerge laterally from the control block 24 in the radial direction.
- the two side ports 44,46 are in turn on the switching parts of second switching valve 30 separated from each other.
- the side ports 44,46 fluid leading each other connected or in the blocking position of the valve from each other separated.
- the second switching valve 30 could be, for example in an embodiment not shown in more detail and control outlet of the working gas in the gas space 12, provided the connections 44.46 fluid leading over connection points in the cover part 20 with would connect to the gas space 12.
- the second switching valve 30 drives another module in the hydraulic circuit, for example, in the form of a hydraulic working cylinder od. etc. ..
- the switching valves 28, 30 are solenoid valves 48 formed, which can be electrically controlled via terminals 50 are. Since these solenoid valves 48 are state of the art, will not be discussed further here.
- the first and second switching valves 28 and 30 are substantially axially parallel to the longitudinal axis 38 of the hydraulic accumulator in the control block 24 arranged. But there would be other mounting positions, especially in radial direction, transverse to the longitudinal axis 38 possible. Due to the flush Connection of the storage enclosure 10 to the control block 24 are leaks avoided and a costly expensive piping can be omitted.
- Control block 24 with its extension 32 directly into the fluid space 14 of the Memory housing 10 engages, in particular, the first switching valve 28 in arranged close to the fluid space 14 and only on the in the length of short fluid channel 40 held separately, so that with very short Activation times for the hydraulic accumulator is to be expected.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Lubricants (AREA)
- Valve Device For Special Equipments (AREA)
Description
Claims (8)
- Hydrospeicher, insbesondere Kolbenspeicher, mit einem Speichergehäuse (10) und mit mindestens einem darin angeordneten Gasraum (12) und einem Fluidraum (14), die über ein Trennelement (16) voneinander getrennt sind, wobei mindestens einer dieser Räume (12,14) über eine mindestens ein Schaltventil (28,30) aufweisende Ventilsteuereinheit (26) mit einem Druckmedium befüllbar oder von diesem zumindest teilweise entleerbar ist und wobei das jeweilige Schaltventil (28) in einer zugehörigen Ventilaufnahme (29) untergebracht ist, das in Bewegungsrichtung des Trennelementes (16) von einer Öffnungsstellung in eine Schließstellung und umgekehrt bewegbar ist, wobei die Ventilsteuereinheit (26) in einem zum Gehäuse (10) eigenständigen Ventilblock (24) aufgenommen ist, wobei der Ventilblock (24) eine weitere Ventilaufnahme (31) für ein weiteres Schaltventil (30) aufweist, das eine andere Schaltaufgabe löst, und wobei die Ventilaufnahmen (29,31) außermittig der Längsachse (33) des Hydrospeichers angeordnet sind für den modularen Einsatz der als Gleichteile ausgebildeten Schaltventile (28,30), dadurch gekennzeichnet, daß die Ventilaufnahmen (29,31) im wesentlichen gleich ausgebildet sind, daß der Steuerblock (24) mit einem Fortsatz (32) und in bündiger Anlage mit dem Innenumfang des Speichergehäuses (10) in dieses eingreift und daß das Speichergehäuse (10) mit seinem einen freien Ende (34) an einem Absatz (36) des Steuerblockes (24) anliegt, an dem der Fortsatz (32) beginnt
- Hydrospeicher nach Anspruch 1, dadurch gekennzeichnet, daß der Steuerblock (24) mit seinem Fortsatz (32) den Fluidraum (14) begrenzt und daß der Steuerblock (24) mindestens einen Fluidkanal (40) aufweist, der mit seinem einen freien Ende in den Fluidraum (14) mündet und mit seinem anderen freien Ende an das Schaltventil (28) angeschlossen ist.
- Hydrospeicher nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß das weitere Schaltventil (30) an den Gasraum (12) angeschlossen ist und den Ein- und Auslaß des Arbeitsgases ansteuert oder für eine andere Baugruppe die Fluidsteuerung übernimmt.
- Hydrospeicher nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Schaltventile (28,30) als 2/2-Wege-Ventile ausgebildet sind.
- Hydrospeicher nach Anspruch 4, dadurch gekennzeichnet, daß die 2/2-Wege-Ventile in der Art von Magnetventilen (48) ausgebildet und elektrisch ansteuerbar sind.
- Hydrospeicher nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß er als Kolbenspeicher mit einem Trennkolben als Trennelement (16) ausgebildet ist.
- Hydrospeicher nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Speichergehäuse (10) und der Steuerblock (24) im wesentlichen als zylindrische Bauteile ausgebildet sind.
- Hydrospeicher nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Schaltventile (28,30) unabhängig von der durch die Druckverhältnisse bedingten Lage des Trennelementes (16) schaltbar sind.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10057746A DE10057746A1 (de) | 2000-11-16 | 2000-11-16 | Hydrospeicher |
DE10057746 | 2000-11-16 | ||
PCT/EP2001/012842 WO2002040871A2 (de) | 2000-11-16 | 2001-11-07 | Hydrospeicher |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1334280A2 EP1334280A2 (de) | 2003-08-13 |
EP1334280B1 true EP1334280B1 (de) | 2005-08-10 |
Family
ID=7664117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01994545A Expired - Lifetime EP1334280B1 (de) | 2000-11-16 | 2001-11-07 | Hydrospeicher |
Country Status (7)
Country | Link |
---|---|
US (2) | US20020056275A1 (de) |
EP (1) | EP1334280B1 (de) |
JP (1) | JP2004514096A (de) |
AT (1) | ATE301777T1 (de) |
DE (2) | DE10057746A1 (de) |
ES (1) | ES2246352T3 (de) |
WO (1) | WO2002040871A2 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10248591B4 (de) | 2002-10-17 | 2006-04-20 | Bos Gmbh & Co. Kg | Fensterrollo mit Deckel auf dem Auszugschlitz |
DE10330516B3 (de) * | 2003-07-05 | 2004-10-21 | Hydac Technology Gmbh | Hydrospeicher, insbesondere Kolbenspeicher |
DE10333014A1 (de) * | 2003-07-18 | 2005-02-03 | Volkswagen Ag | Druckspeicher zur Aufnahme und/oder Abgabe eines unter Druck stehenden Mediums |
DE10351386A1 (de) * | 2003-11-04 | 2005-06-09 | Bauer Maschinen Gmbh | Getriebe und Verfahren zur Steuerung eines Innendrucks in dem Getriebe |
DE102004028868A1 (de) * | 2004-06-15 | 2006-01-05 | Ina-Schaeffler Kg | Brennkraftmaschine mit einer hydraulischen Vorrichtung zur Drehwinkelverstellung einer Nockenwelle gegenüber einer Kurbelwelle |
JP4583261B2 (ja) * | 2005-06-30 | 2010-11-17 | 株式会社クボタ | ローダ作業機用アキュームレータ取付構造 |
WO2008157327A1 (en) * | 2007-06-14 | 2008-12-24 | Hybra-Drive Systems, Llc | Compact hydraulic accumulator |
US7740455B1 (en) | 2007-07-09 | 2010-06-22 | Brian Nissen | Pumping system with hydraulic pump |
NO329959B1 (no) * | 2008-08-29 | 2011-01-31 | Tool Tech As | Fremgangsmate for bruk av nye spyleporter ved rengjoring av en stempelakkumulator |
WO2011047776A2 (de) * | 2009-10-19 | 2011-04-28 | Hydac Technology Gmbh | Vorrichtung zum impulsartigen freigeben einer in einem speichergehäuse bevorratbaren fluidmenge |
EP2630399A2 (de) | 2010-09-22 | 2013-08-28 | Limo-Reid, Inc. | Ultraleichter und kompakter akkumulator |
US8567444B2 (en) * | 2010-10-08 | 2013-10-29 | GM Global Technology Operations LLC | Accumulator assembly |
US8602063B2 (en) * | 2011-02-08 | 2013-12-10 | Hamilton Sundstrand Corporation | Gas over liquid accumulator |
US8991546B2 (en) * | 2013-03-21 | 2015-03-31 | Deere & Company | Work vehicle with fluid attentuator |
JP6658218B2 (ja) * | 2016-03-31 | 2020-03-04 | アイシン・エィ・ダブリュ株式会社 | 蓄圧装置の開閉装置及び蓄圧装置 |
US9885373B1 (en) | 2016-10-11 | 2018-02-06 | Honeywell International Inc. | Leak-free piston style accumulator |
DE102016226304A1 (de) * | 2016-12-29 | 2018-07-05 | Robert Bosch Gmbh | Hydraulikblock für ein Hydraulikaggregat einer Bremsregelung einer hydraulischen Fahrzeugbremsanlage |
DE102017002079B4 (de) | 2017-03-04 | 2019-03-14 | Hydrosaar Gmbh | Prallbrechanlage |
CN111418263A (zh) | 2017-09-29 | 2020-07-14 | 卓缤科技有限责任公司 | 射频和冲击处理设备和方法 |
DE102020005257A1 (de) | 2020-08-27 | 2022-03-03 | Hydac Technology Gmbh | Kolbenspeicher |
WO2024163036A1 (en) * | 2023-01-31 | 2024-08-08 | Parker-Hannifin Corporation | Electrohydraulic steering system with a safety assist configuration |
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US2828760A (en) * | 1953-05-19 | 1958-04-01 | British Messier Ltd | Automatic cut-outs for hydraulic circuits |
US2986158A (en) * | 1955-09-03 | 1961-05-30 | Gratzmuller Jean Louis | Self-draining hydraulic energy accumulator |
US3077898A (en) * | 1959-01-28 | 1963-02-19 | Racine Hydraulics And Machiner | Fluid relief valve |
US3077896A (en) * | 1959-10-01 | 1963-02-19 | Archie E Weingard | Multiple seat valve |
GB1183477A (en) * | 1967-09-15 | 1970-03-04 | Hydrotrole Ltd | Hydropneumatic Accumulator |
US3967782A (en) * | 1968-06-03 | 1976-07-06 | Gulf & Western Metals Forming Company | Refrigeration expansion valve |
GB1288952A (de) * | 1969-02-08 | 1972-09-13 | ||
US3741692A (en) * | 1970-12-17 | 1973-06-26 | Rupp Co Warren | Surge suppressor for fluid lines |
US3804125A (en) * | 1972-09-28 | 1974-04-16 | Bendix Corp | Pump pulsation dampener |
GB1581441A (en) * | 1976-01-29 | 1980-12-17 | Dobson Park Ind | Fluid powered impact tools |
FR2341891A1 (fr) * | 1976-02-23 | 1977-09-16 | Leduc Gerard | Dispositif de regulation de pression pour accumulateur hydraulique |
US4162692A (en) * | 1976-09-07 | 1979-07-31 | Hydrotrole Limited | Hydro-pneumatic flexible bladder accumulator |
US4207563A (en) * | 1978-06-08 | 1980-06-10 | Midland-Ross Corporation | Gas charged accumulator with failure indicator |
US4186777A (en) * | 1978-10-27 | 1980-02-05 | Deere & Company | Pressure vessel retained energy measurement system |
JPS5725502A (en) * | 1980-07-21 | 1982-02-10 | Toshiba Mach Co Ltd | Accumulator with automatic closing valve |
US4487226A (en) * | 1982-08-12 | 1984-12-11 | Vsi Corporation | Failure sensing hydraulic accumulator and system |
US4966200A (en) * | 1989-01-25 | 1990-10-30 | Iowa Industrial Hydraulics, Inc. | Tie bolt accumulator with safety valve |
JPH02266101A (ja) * | 1989-04-05 | 1990-10-30 | Nhk Spring Co Ltd | アキュムレータ |
DE3941241C2 (de) * | 1989-12-14 | 2002-03-21 | Continental Teves Ag & Co Ohg | Kolbendruckspeicher, insbesondere für antriebsschlupfgeregelte Bremsanlagen, sowie Schaltanordnung dazu |
US5205326A (en) * | 1991-08-23 | 1993-04-27 | Hydraulic Power Systems, Inc. | Pressure response type pulsation damper noise attenuator and accumulator |
JPH05185822A (ja) * | 1991-08-30 | 1993-07-27 | Tokico Ltd | 車高調整システム |
DE4231991A1 (de) * | 1992-09-24 | 1994-03-31 | Bilstein August Gmbh Co Kg | Kolbenspeicher für hydraulische Schwingungsdämpfer mit hydropneumatischer Niveauregelung |
DE4318553C2 (de) * | 1993-06-04 | 1995-05-18 | Daimler Benz Ag | Adaptiver hydropneumatischer Pulsationsdämpfer |
FR2750652B1 (fr) * | 1996-07-04 | 1998-11-13 | Peugeot | Systeme de commande d'une suspension hydropneumatique de vehicule automobile |
WO2000031420A1 (de) * | 1998-11-25 | 2000-06-02 | Continental Teves Ag & Co. Ohg | Druckmittelspeicher |
DE19927594C1 (de) * | 1999-06-17 | 2001-02-08 | Hydac Technology Gmbh | Hydrospeicher, insbesondere Hydrodämpfer |
DE19930101A1 (de) * | 1999-07-01 | 2001-01-18 | Fluidtech Gmbh | Schaltvorrichtung für eine Arbeitsmaschine |
US6478052B1 (en) * | 2001-07-25 | 2002-11-12 | Jeff Alan Conley | Pulsation damping assembly and method |
-
2000
- 2000-11-16 DE DE10057746A patent/DE10057746A1/de not_active Withdrawn
-
2001
- 2001-08-24 US US09/935,762 patent/US20020056275A1/en not_active Abandoned
- 2001-11-07 JP JP2002543162A patent/JP2004514096A/ja active Pending
- 2001-11-07 WO PCT/EP2001/012842 patent/WO2002040871A2/de active IP Right Grant
- 2001-11-07 EP EP01994545A patent/EP1334280B1/de not_active Expired - Lifetime
- 2001-11-07 AT AT01994545T patent/ATE301777T1/de active
- 2001-11-07 US US10/399,857 patent/US6866066B2/en not_active Expired - Lifetime
- 2001-11-07 ES ES01994545T patent/ES2246352T3/es not_active Expired - Lifetime
- 2001-11-07 DE DE50107069T patent/DE50107069D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US20020056275A1 (en) | 2002-05-16 |
DE50107069D1 (de) | 2005-09-15 |
ES2246352T3 (es) | 2006-02-16 |
ATE301777T1 (de) | 2005-08-15 |
EP1334280A2 (de) | 2003-08-13 |
JP2004514096A (ja) | 2004-05-13 |
US6866066B2 (en) | 2005-03-15 |
WO2002040871A3 (de) | 2002-08-01 |
US20040028542A1 (en) | 2004-02-12 |
WO2002040871A2 (de) | 2002-05-23 |
DE10057746A1 (de) | 2002-06-06 |
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