WO2005003570A1 - Hydrospeicher, insbesondere kolbenspeicher - Google Patents
Hydrospeicher, insbesondere kolbenspeicher Download PDFInfo
- Publication number
- WO2005003570A1 WO2005003570A1 PCT/EP2004/002964 EP2004002964W WO2005003570A1 WO 2005003570 A1 WO2005003570 A1 WO 2005003570A1 EP 2004002964 W EP2004002964 W EP 2004002964W WO 2005003570 A1 WO2005003570 A1 WO 2005003570A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- accumulator
- hydraulic accumulator
- fluid
- ball valve
- housing
- 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
- 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
- F15B1/04—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
- F15B2201/312—Sealings therefor, e.g. piston rings
-
- 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
- F15B2201/3151—Accumulator separating means having flexible separating means the flexible separating means being diaphragms or membranes
-
- 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
- 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
Definitions
- Hydraulic accumulators especially piston accumulators
- the invention relates to a hydraulic accumulator, in particular piston accumulator, with a storage housing and with at least one gas space and a fluid space arranged therein, which are separated from one another by a separating element, in particular in the form of a piston.
- hydraulic accumulators One of the main tasks of hydraulic accumulators is, among other things, to take up certain volumes of pressurized fluids in a hydraulic system and to return them to the system on demand.
- Piston accumulators, bladder accumulators, membrane accumulators, but also weight and spring-loaded accumulators are regularly used as hydraulic accumulators.
- this kind of hydraulic accumulator a multitude of tasks can be realized, 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 control valves, are used to operate the hydraulic accumulators and to control them, in order to control the fluid flow from and to the hydraulic accumulator.
- the hydraulic accumulator is regularly connected to a piping with fluid lines that establish the fluid-carrying connection between the accumulator and the valve control unit.
- Disadvantages of the known th solution which is freely available on the market in a large number of embodiments, is in the form of leakage problems due to the increased number of connections between hydraulic accumulator piping and valve control unit and is also associated with the additional costs for the line network for fluid lines see.
- there are also problems in accommodating the large number of components mentioned and connecting them in a fluid-conducting manner.
- since various manufacturers are responsible for the hydraulic accumulators, the piping and / or the valves of the valve control unit, there are difficulties with adaptation, particularly at points of installation on site.
- WO 02/40871 A2 discloses a hydraulic accumulator of the generic type, in particular a piston accumulator, known with a storage housing and with a gas space and a fluid space arranged therein, which are separated from one another by a separating element, the fluid space being provided with a pressure medium via a valve control unit having a switching valve can be filled or at least partially emptied by the latter, and the switching valve is accommodated in an associated valve receptacle, which can be moved in the direction of movement of the separating element in the form of the piston from an open position to a closed position and vice versa.
- the valve control unit is accommodated in a valve block that is independent of the housing, the valve block having a further valve for a further switching valve that solves another switching task.
- the two switching valves mentioned are designed as identical parts for modular use, a complex pipeline network between the hydraulic accumulator and the valve control unit is avoided, and leakage or leakage problems, as is customary in the pipeline network, cannot occur at all.
- the relevant hydraulic accumulator solution is also complex and thus expensive to manufacture and, if electrically controlled valve systems are used, an elaborate control concept is necessary, which leads to the disadvantages described above in relation to functional reliability.
- a storage connection block with connections for connecting a storage vessel of a hydraulic pump and a tank and with a 3-way valve for shutting off and relieving the storage vessel.
- the shut-off device of the 3-way valve is designed in the manner of a ball, the control shaft of which is centrally mounted for the stationary arrangement of the shut-off device and the circumferential surface of the bore orifices abuts a sealing arrangement assigned to each outlet.
- a sealed seat of the shut-off element designed in the manner of a ball is ensured in every position of the tap.
- the known Solution is the storage connection block spatially separated from the actual hydraulic storage via a pipeline.
- the object of the invention is to maintain the advantages in the prior art, namely to create a hydraulic accumulator which overall requires little installation space and which allows the fluid flows to be controlled to be controlled in a favorable manner to improve this further, that it is inexpensive to manufacture and maintain and allows reliable operation, especially when used in suspension systems in vehicles, such as excavators, tractors, etc.
- a related task is solved by a hydraulic accumulator with the features of claim 1 in its entirety.
- the one free end of the storage housing is closed off via a valve block which has a ball valve which in its open position or closed position releases or blocks a fluid-carrying path from the inside of the storage housing to the outside, the ball valve Integral part of the accumulator housing via the valve block and housed in a space-saving manner within the hydraulic accumulator solution, which also leads to a reduction in the free fluid paths and thus to savings in the piping.
- the accumulator housing is closed off via a valve block having a ball valve, which thereby forms part of the pressure-bearing wall of the hydraulic accumulator, which leads to a high-strength connection between the aforementioned components accumulator and accumulator block.
- the components of the storage housing, ventilation valve block and ball valve cover a wide range of possible applications by adapting the respective components to the fluid flows to be controlled and their pressures in a modular manner.
- the suspension damping in a work machine can be switched off via the integrated ball valve of the hydraulic accumulator as soon as work tasks, such as taking up a load, are carried out with the shovel of the wheel loader, so that damaging swing-up processes for the wheel loader itself are avoided and as soon as transport tasks with or without load, e.g. in road operation, are pending, the suspension accumulator is switched on via the ball valve of the hydraulic accumulator.
- the ball valve is operated by an operator by hand, there are no electrical control components in this area, so that the solution according to the invention can be implemented very inexpensively and is functionally reliable in operation for a long time. Further advantageous embodiments of the hydraulic accumulator according to the invention are the subject of the dependent claims.
- the hydraulic accumulator according to the invention is explained in more detail below with reference to the drawing. In principle and not to scale, it shows the single figure, partly in section, partly in view, a longitudinal representation of the hydraulic accumulator.
- the hydraulic accumulator is designed in the manner of a piston accumulator.
- This has a storage housing 10 with a gas space 12 and a fluid space 14 arranged therein.
- the gas space 12 is separated from the fluid space 14 via a separating element 16 in the form of a piston, which is guided with its sealing system so as to be longitudinally displaceable along the inner circumference of the storage housing 10 , so that the ratio of gas space 12 to fluid space 14 is kept variable.
- the piston or separating element 16 is designed as a hollow part and has a corresponding recess 18 in the interior.
- the gas space 2 is closed to the outside on its right side by a flanged cover part 20, which has a central bore with a gas valve body 22, through which the working gas, for example in the form of nitrogen gas, can be introduced into the gas space 12 is.
- the storage housing 10 is closed in a gas-tight manner via the gas valve body 22, the gas quantity in the gas space 12 also being able to be checked from time to time via the valve 22 and refillable via a refill device (not shown).
- the valve control unit designated as a whole by 26, connects in the manner of a control or valve block 24.
- the valve control unit 26 has a ball valve 28, which is shown in the figure in its open position, in which it releases a fluid-carrying path 30 from the inside of the storage housing 10, here in the form of the fluid space 14, to the outside. In its position pivoted by 90 ° in comparison, it blocks the fluid-carrying path 30 in question in a fluid-tight manner.
- the passage direction of the ball valve 28 shown in the figure in its open position thus runs across the transverse axis 32 transversely to the longitudinal axis 34 of the storage housing 10.
- the pivot axis 36 of the shut-off part 38 (plug) of the ball valve 28 is arranged off-center and parallel to the longitudinal axis 34 of the storage housing 10.
- a part 40 of the fluid-carrying path 30 within the valve block 24 runs parallel and eccentrically and, as viewed in the direction of the figure, essentially below the longitudinal axis 34 of the storage housing 10. Diametrically opposite this part 40 and with respect to the longitudinal axis 34 of the storage housing is then opposite the shut-off part (plug) 38 of the ball valve 28 is arranged.
- Another part 42 of the fluid-carrying path 30 is formed by a screw-in part 44, which is screwed into the valve block 24 on the outer circumference in the direction of the transverse axis 32 and extends transversely to the longitudinal axis 34 of the memory housing 10.
- a handle 46 which has an actuating handle 48, is used to actuate the shut-off part 38 of the ball valve 28.
- the handle 46 also has a pivot pin 50 which engages with its one free end in a groove-shaped recess 52 of the spherical shut-off part 38.
- the pivot pin 50 is provided with an engagement screw 54, which in this way actuates the handle 48 on the rotary pin 50 holds non-rotatably, for which the actuating handle 48 is provided with a surround 56 which engages around the pivot pin 50 in a positive manner in this area.
- the pivot pin 50 is pivotally mounted in the valve block 24 by means of a flange-like widening 58 and the pivot pin 50 has an annular seal 62 between two edge-like segments 60, which thus opposite the interior of the valve block 24, in particular with regard to the fluid-carrying path 30 seals the environment.
- the pivot pin 50 is provided with a stop ring 64 which interacts with a stop pin 66 which, in the valve block 24, extends essentially along the longitudinal axis 34 of the storage housing 10.
- the shut-off part 38 plug
- the pivot pin 50 can be pivoted from its open position shown in the figure by 90 ° into a locking position (not shown in more detail) via the actuating handle 48 and the pivot pin 50, the pivot path in question via the stop ring 64 with stop pin 66 being limited as well the possible swivel path when the shut-off part 38 is reset from its locked position into the open position shown in the figure.
- This type of stop device is common for ball valves, so that it will not be discussed in more detail here.
- the storage housing 10 is preferably designed in the manner of a cylindrical hollow body and the valve block 24 engages through a cylindrical extension 68 and via a screw-in section 70 into one free end of the storage housing 10.
- the extension 68 in question widens like a flange and radially outside the storage housing 10, the flange-like edge 72 of the valve block 24 obtained in this way forming a contact surface for the front end of the storage housing 10, which is formed is supported on the edge 72 in the screwed-on state on the valve block 24.
- the cylindrical extension 68 tapers in the direction of the fluid space 14 and has a sealing part 74 in the area of the corresponding taper, which seals the fluid space 14 from the surroundings in this area.
- the hydraulic accumulator described is designed as a piston accumulator and can preferably be part of a suspension system (not shown in detail) with at least one suspension accumulator (not shown in more detail), for example in the form of a conventional bladder or membrane accumulator.
- the suspension accumulator is connected via the fluid-carrying path 30 to the screw-in part 44 of the hydraulic accumulator, either directly or via further piping from its fluid side.
- the damping of the suspension is then switched on, in which the fluid space 14 of the storage housing 10 communicates with the fluid side of the suspension accumulator and in this way pressure surges are caused by the damping effect of the gas part of the suspension accumulator.
- the handle 46 is actuated via the actuating handle 48 and the shut-off part 38 (plug) of the ball valve 28 is brought into its position blocking the fluid-carrying path 30.
- the suspension part of the suspension memory is disconnected and the damping device is accordingly blocked.
- the shovel of a wheel loader for which the hydraulic accumulator described is used, can then drive into the ground, in bulk material or the like, without unintentionally causing pitching movements on the vehicle in the form of the wheel loader itself , The latter significantly improves working with the bucket device of a wheel loader.
- the suspension can be switched on again for removal on a road or the like, by moving the ball valve 28 into the opening position shown in the figure in the reverse order, as described, in which the damping part of the suspension accumulator is then switched on again via the fluid-carrying path 30.
- the hydraulic accumulator according to the invention need not be limited to applications in wheel loaders, but can be used in suspension systems wherever possible, without the need for complex control and regulating electronics, in a simple and reliable manner to switch damping devices on and off , such as suspension memory or the like. Desires, for example in the field of earth-working devices in agricultural machinery. However, it is still within the scope of the invention to replace the manually operated handle 46 by an electric actuator in the manner of a servomotor, in order to enable automatic control of the hydraulic accumulator, for example, from a driver's cab or the like. If, in addition to the electrical actuating device, the handle 46 with the actuating handle 48 remains, an emergency actuation would be possible if the electrical actuating components should fail.
- the ball valve in a further embodiment of the hydraulic accumulator according to the invention, which is not shown in any more detail, provision can also be made for the ball valve to be arranged centrally and at an angle, and the ball valve could also be offset by 90 ° with its pivot axis relative to the installation position shown.
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)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006517976A JP4456111B2 (ja) | 2003-07-05 | 2004-03-20 | 液圧用アキュムレータ、特にピストン型アキュムレータ |
DE502004007907T DE502004007907D1 (de) | 2003-07-05 | 2004-03-20 | Hydrospeicher, insbesondere kolbenspeicher |
EP04722164A EP1642034B1 (de) | 2003-07-05 | 2004-03-20 | Hydrospeicher, insbesondere kolbenspeicher |
US10/563,364 US20060277904A1 (en) | 2003-07-05 | 2004-03-20 | Hydraulic accumulator especially piston-type accumulator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10330516A DE10330516B3 (de) | 2003-07-05 | 2003-07-05 | Hydrospeicher, insbesondere Kolbenspeicher |
DE10330516.5 | 2003-07-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005003570A1 true WO2005003570A1 (de) | 2005-01-13 |
Family
ID=33016469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/002964 WO2005003570A1 (de) | 2003-07-05 | 2004-03-20 | Hydrospeicher, insbesondere kolbenspeicher |
Country Status (6)
Country | Link |
---|---|
US (1) | US20060277904A1 (de) |
EP (1) | EP1642034B1 (de) |
JP (1) | JP4456111B2 (de) |
AT (1) | ATE405746T1 (de) |
DE (2) | DE10330516B3 (de) |
WO (1) | WO2005003570A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8056666B2 (en) * | 2008-10-10 | 2011-11-15 | GM Global Technology Operations LLC | Hydraulic control for a vehicle powertrain |
GB2470352B (en) * | 2009-05-18 | 2015-07-01 | Fawcett Christie Hydraulics Ltd | Bladder accumulator with fluid port valve fixable in open position |
DE102009034512A1 (de) * | 2009-07-25 | 2011-01-27 | Schaeffler Technologies Gmbh & Co. Kg | Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine |
CN102661301B (zh) * | 2012-05-02 | 2015-01-21 | 北京博源兴康科技有限公司 | 液压锁紧机械臂的快速注油机构 |
CN103016428A (zh) * | 2013-01-06 | 2013-04-03 | 辽宁省电力有限公司铁岭供电公司 | 储能器放气装置 |
US9885373B1 (en) | 2016-10-11 | 2018-02-06 | Honeywell International Inc. | Leak-free piston style accumulator |
US11156236B2 (en) * | 2016-12-09 | 2021-10-26 | Dril-Quip, Inc. | Ball valve with pressure absorbing accumulator |
DE102016226304A1 (de) * | 2016-12-29 | 2018-07-05 | Robert Bosch Gmbh | Hydraulikblock für ein Hydraulikaggregat einer Bremsregelung einer hydraulischen Fahrzeugbremsanlage |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2753892A (en) * | 1953-08-31 | 1956-07-10 | Bendix Aviat Corp | Piston-sealing structure |
DE1231163B (de) * | 1962-07-12 | 1966-12-22 | Caterpillar Tractor Co | An einem Kraftfahrzeug angeordnete Ladeeinrichtung |
DE3941241A1 (de) | 1989-12-14 | 1991-06-20 | Teves Gmbh Alfred | Kolbendruckspeicher, insbesondere fuer antriebsschlupfgeregelte bremsanlagen, sowie schaltanordnung dazu |
DE19616501C1 (de) * | 1996-04-25 | 1997-09-18 | Hydac Technology Gmbh | Trennspeicher mit Einstellschraube |
WO2002040871A2 (de) | 2000-11-16 | 2002-05-23 | Hydac Technology Gmbh | Hydrospeicher |
DE10161475A1 (de) | 2000-12-15 | 2002-07-04 | Roetelmann Gmbh | Speicher-Anschlußblock |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2979070A (en) * | 1956-11-27 | 1961-04-11 | Vivian H Payne | Energy storage or accumulator device |
US3901474A (en) * | 1973-12-27 | 1975-08-26 | Taimei Kinzoku Kogyo Kabushiki | Rotary valve |
US3933172A (en) * | 1975-02-24 | 1976-01-20 | Grove Valve And Regulator Company | Pipeline surge reliever with sanitary barrier |
US5167837A (en) * | 1989-03-28 | 1992-12-01 | Fas-Technologies, Inc. | Filtering and dispensing system with independently activated pumps in series |
WO2000047433A1 (fr) * | 1999-02-09 | 2000-08-17 | Hitachi Construction Machinery Co., Ltd. | Vehicule de chantier a roues |
US6619325B2 (en) * | 2001-12-04 | 2003-09-16 | The United States Of America As Represented By The Administrator Of The U.S. Environmental Protection Agency | Hydraulic hybrid accumulator shut-off valve |
-
2003
- 2003-07-05 DE DE10330516A patent/DE10330516B3/de not_active Expired - Fee Related
-
2004
- 2004-03-20 EP EP04722164A patent/EP1642034B1/de not_active Expired - Lifetime
- 2004-03-20 DE DE502004007907T patent/DE502004007907D1/de not_active Expired - Lifetime
- 2004-03-20 JP JP2006517976A patent/JP4456111B2/ja not_active Expired - Lifetime
- 2004-03-20 US US10/563,364 patent/US20060277904A1/en not_active Abandoned
- 2004-03-20 AT AT04722164T patent/ATE405746T1/de active
- 2004-03-20 WO PCT/EP2004/002964 patent/WO2005003570A1/de active IP Right Grant
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2753892A (en) * | 1953-08-31 | 1956-07-10 | Bendix Aviat Corp | Piston-sealing structure |
DE1231163B (de) * | 1962-07-12 | 1966-12-22 | Caterpillar Tractor Co | An einem Kraftfahrzeug angeordnete Ladeeinrichtung |
DE3941241A1 (de) | 1989-12-14 | 1991-06-20 | Teves Gmbh Alfred | Kolbendruckspeicher, insbesondere fuer antriebsschlupfgeregelte bremsanlagen, sowie schaltanordnung dazu |
DE19616501C1 (de) * | 1996-04-25 | 1997-09-18 | Hydac Technology Gmbh | Trennspeicher mit Einstellschraube |
WO2002040871A2 (de) | 2000-11-16 | 2002-05-23 | Hydac Technology Gmbh | Hydrospeicher |
DE10161475A1 (de) | 2000-12-15 | 2002-07-04 | Roetelmann Gmbh | Speicher-Anschlußblock |
Also Published As
Publication number | Publication date |
---|---|
ATE405746T1 (de) | 2008-09-15 |
EP1642034A1 (de) | 2006-04-05 |
JP2007506914A (ja) | 2007-03-22 |
DE10330516B3 (de) | 2004-10-21 |
EP1642034B1 (de) | 2008-08-20 |
JP4456111B2 (ja) | 2010-04-28 |
US20060277904A1 (en) | 2006-12-14 |
DE502004007907D1 (de) | 2008-10-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1963118B1 (de) | Hydropneumatische achsfederung für fahrzeuge | |
EP0615583B1 (de) | Vorrichtung zur rückgewinnung von energie | |
EP4069532A1 (de) | Druckmittelversorgungssystem, insbesondere für ein fahrwerkssystem | |
DE102007023302B4 (de) | Hydraulische Schaltungsanordnung zur Betätigung eines hydraulischen Arbeitszylinders | |
EP1334280B1 (de) | Hydrospeicher | |
WO2009062572A1 (de) | Hydraulische ventilvorrichtung | |
EP1943452A1 (de) | Kolbenanordnung, insbesondere für zumessventile | |
DE10330516B3 (de) | Hydrospeicher, insbesondere Kolbenspeicher | |
EP2294331A1 (de) | Hydraulische ventilvorrichtung | |
WO2001033307A2 (de) | Ventil, insbesondere druckregelventil | |
EP1086312B1 (de) | Kolbenspeicher für einem verbraucher in einer hydraulikanlage zuzuführendes druckfluid | |
WO2007020052A1 (de) | Hydraulischer aktuator, insbesondere für ein fahrwerkstab ilisierungssytem, sowie hydraulikkreislauf mit einem solchen aktuator | |
EP1185797B1 (de) | Hydrospeicher, insbesondere hydrodämpfer | |
DE60205721T2 (de) | Schnellströmendes Abgabeventil für eine Hochdruckinertgasfeuerlöscheinrichtung | |
DE19543237A1 (de) | Hydraulische Stellvorrichtung, insbesondere Schwenkantrieb | |
DE1780117A1 (de) | Hydro-pneumatische Federung fuer Fahrzeuge | |
DD228007A5 (de) | Fluessigkeitstransporteinrichtung vorzugsweise fuer farbstoffe und chemikalien | |
EP1309801B1 (de) | Ventil | |
EP2513491A1 (de) | Ventilanordnung zur ansteuerung eines verbrauchers | |
DE102009034286B3 (de) | Hydraulische Schaltungsanordnung zum Steuern eines doppelt wirkenden Arbeitszylinders mittels eine fünf Anschlüsse aufweisenden Steuerventils | |
DE3618773C2 (de) | ||
DE2748146C2 (de) | ||
DE102009029802A1 (de) | Stabilisatoranordnung | |
DE102004023102A1 (de) | Druckmittelbetriebene Anordnung | |
WO2020173833A1 (de) | Nachfülleinheit zum nachfüllen von hydrauliköl in ein mit einem niederdruckspeicher druckvorgespanntes hydraulisches system und druckvorgespanntes hydraulisches system mit einer solchen nachfülleinheit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
DPEN | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2004722164 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006517976 Country of ref document: JP |
|
WWP | Wipo information: published in national office |
Ref document number: 2004722164 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006277904 Country of ref document: US Ref document number: 10563364 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 10563364 Country of ref document: US |
|
WWG | Wipo information: grant in national office |
Ref document number: 2004722164 Country of ref document: EP |