EP3864302A1 - Dispositif de compensation de pression mis au point pour des applications sous-marines - Google Patents

Dispositif de compensation de pression mis au point pour des applications sous-marines

Info

Publication number
EP3864302A1
EP3864302A1 EP19784045.7A EP19784045A EP3864302A1 EP 3864302 A1 EP3864302 A1 EP 3864302A1 EP 19784045 A EP19784045 A EP 19784045A EP 3864302 A1 EP3864302 A1 EP 3864302A1
Authority
EP
European Patent Office
Prior art keywords
compensation device
pressure compensation
pressure
flexible wall
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.)
Granted
Application number
EP19784045.7A
Other languages
German (de)
English (en)
Other versions
EP3864302B1 (fr
Inventor
Alexandre ORTH
Juergen Schneider
Gottfried Hendrix
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3864302A1 publication Critical patent/EP3864302A1/fr
Application granted granted Critical
Publication of EP3864302B1 publication Critical patent/EP3864302B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/006—Compensation or avoidance of ambient pressure variation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/12—Oil cooling
    • H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
    • 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
    • F15B2201/3151—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
    • F15B2201/30—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

Definitions

  • the present invention relates to a pressure compensation device for a hydraulic system, set up for underwater applications.
  • Such types of hydraulic systems can be used to move an element under water at water depths up to several thousand meters in connection with the extraction of oil and natural gas, mining, scientific inquiries or infrastructure projects.
  • process valves are located at great depths with which the volume flow of the medium to be extracted can be regulated or shut off.
  • hydraulic and / or electrical and / or mechanical components under water is problematic because the components can be damaged by water, in particular sea water.
  • the high ambient pressure of the water requires pressure compensation.
  • hydraulic pressure compensators can be used, which can raise the pressure level of a hydraulic system used in the underwater area to the ambient pressure prevailing in the water.
  • membranes can be used which are exposed to ambient sea water on one side and which are connected to a reservoir of the hydraulic system on the other side.
  • a disadvantage of this arrangement is that if the membrane, which forms an interface, is damaged, seawater can penetrate into the hydraulic system.
  • a pressure compensation device which is set up for underwater applications, contributes to this. It serves to seal an interior of a housing, which itself forms an (inner) fluid area, from the surrounding sea water area, the pressure compensation device being able to raise a pressure level of the fluid area at least to the ambient pressure prevailing in the sea water area.
  • the hydraulic system which is set up for underwater applications, can consequently comprise an interior of a container (for example a hydraulic and / or electrical component, such as an electric motor, a pump, a tank or the like), which forms a fluid region which is opposite the surrounding sea water area is sealed.
  • the at least one hydraulic pressure compensation device which can raise the pressure level of the fluid (hydraulic fluid, transformer oil, lubricant, etc.) in the fluid area at least to the ambient pressure prevailing in the (surrounding) sea water area.
  • the pressure compensation device is constructed in at least two stages in such a way that at least two stores with a flexible wall area are arranged in series.
  • the device proposed here for a system filled under water with a fluid has the particular advantage that underwater pressure compensation with an at least double (redundant) barrier against intrusion is realized by sea water.
  • the at least two barriers are arranged and connected in series. In other words, this means in particular that first the at least one reservoir with the flexible wall area with the sea water is acted upon, whereby the flexible wall is movable in response to the sea water pressure. The movement of the flexible wall can then be transferred (separated from the direct influence of the sea water) to a movement of the flexible wall area in the subsequent store.
  • a transmission medium, in particular a liquid, which is arranged in the memory, can be used for this.
  • the (resulting) movement of the flexible wall area can (directly) lead to a pressure adjustment in the fluid area, for which the flexible wall area is preferably in direct contact with the fluid area.
  • a pressure adjustment in the fluid area for which the flexible wall area is preferably in direct contact with the fluid area.
  • the internal fluid for example a hydraulic medium, transformer oil or lubricant
  • the two barriers mean that the seawater has to pass two sealing points (membrane or bubbles) before it can penetrate the system (redundancy to prevent system errors).
  • the at least two reservoirs are arranged in an annular pressure chamber of a housing, penetration of seawater into the hydraulic system is reliably avoided in a structurally simple manner.
  • the pressure compensation capacity is significantly increased and the installation space is reduced.
  • the annular pressure chamber of the housing is preferably designed as a hollow cylinder arrangement with two hollow cylinders arranged coaxially to one another, between which there is an intermediate cavity.
  • the at least two stores with a flexible wall area are (completely) arranged in the intermediate cavity.
  • the at least two stores with a flexible wall area are preferably ring-shaped. At least one of the memories can e.g. B. span an annular intermediate cavity.
  • the number of stores with flexible wall areas which are arranged in a row is not very high, for example is 2, 3 or a maximum of 4.
  • the technical outlay for production can thus be limited.
  • the reservoir (which is actively connected to the sea water) with a flexible wall area can be a membrane reservoir or a bladder reservoir.
  • a diaphragm accumulator a diaphragm can be provided, which is essentially plate-shaped, the periphery (fixed) of which is connected to a storage wall, and which is movable radially on the inside in response to a pressure prevailing there.
  • a bladder accumulator can be designed with a flexible wall, which encloses a predeterminable bladder accumulator volume and can move axially and radially in the direction of a pressure prevailing there.
  • the flexible wall and / or the membrane are particularly fluid-tight and resistant to contact with sea water under high pressure.
  • a flexible wall area is expediently loaded by at least one compression spring.
  • a piston accumulator with a displaceable piston is preferably arranged in series between the accumulators with a flexible wall area.
  • the piston of the piston accumulator is expediently loaded by at least one compression spring.
  • the compression spring can be used to set a predeterminable prestress, for example to set a pressure level that is higher than the pressure generated by the seawater on the fluid region.
  • the piston is in particular designed with a rigid piston plate on which the compression spring acts. Damage or overloading of this rigid piston due to the pressure spring load can thus be permanently avoided.
  • the fluid is preferably biased in the fluid region with respect to the pressure of the surrounding sea water region with 0.5 to 10 bar.
  • a correspondingly designed compression spring can be provided in the piston accumulator, with which the prestress above the seawater pressure level can be adjusted.
  • a displacement sensor is advantageously assigned to the piston of the piston accumulator.
  • the displacement sensor is in particular set up to detect the current stroke or the current position of the piston with reference to a reference position or the piston accumulator.
  • a sensor in this sense is in particular a sensor by means of which a position of the piston can be determined or measured directly / indirectly.
  • the sensor can include an end position switch, a pressure switch. This enables monitoring of a possible leakage by observing the position of the piston, for example if a movement of the piston is determined under unchanged pressure conditions.
  • the piston of the piston accumulator can comprise a plurality of sealing devices arranged downstream (in the effective direction of the pressure).
  • the piston can preferably seal an opening of a second interior of the piston accumulator from the fluid region.
  • the piston can additionally have at least one seal that swells (when in contact with sea water).
  • the at least two accumulators with a flexible wall area and the at least one piston accumulator form an intermediate space which is filled with a transmission medium (fluid and / or gas).
  • a (output side) second interior of a membrane or bladder accumulator and a (input side) first interior of a piston accumulator form an (partially or completely) intermediate space filled with a fluid and / or gas.
  • the fluid (or transmission fluid) in the (output-side) second interior of the accumulator with a flexible wall area and the (input-side) first interior of the piston accumulator is preferably a hydraulic fluid, a mechanical grease-like medium or a dielectric transformer oil.
  • the fluid in the (interior) second interior of the piston accumulator and in the fluid area is advantageously an oil, in particular a transformer oil.
  • the pressure compensation device is further preferably designed in the manner of a hollow cylinder in such a way that the at least two stores with a flexible wall area are surrounded by an outer hollow cylinder jacket and are arranged opposite an inner hollow cylinder jacket.
  • An arrangement with the pressure compensation device presented here is expediently arranged in a hollow cylinder arrangement with a hollow cylinder interior, through the central opening of which an actuating axis of an electronic or hydraulic component can be guided.
  • the central passage opening can be arranged (sealingly) around the setting axis of an electronic or hydraulic component (electric motor, pump, cylinder compensation, etc.).
  • a pressure compensation device proposed here for pressurizing at least one container filled with fluid (for example with hydraulic fluid, oil, grease, lubricant, etc.) is proposed for a hydraulic actuating axis of an electric motor, a pump and / or a cylinder compensation .
  • the at least one pressure compensation device is used in particular to apply ambient pressure (water pressure) to an integrated hydraulic actuating axis (electric motor, pump, cylinder compensation) in its oil-filled container.
  • the cylinder or a rod of the cylinder can be guided through the central opening of the housing, which enables a space-saving integrated construction.
  • the measures proposed here are based in particular on the idea of forming an at least two-stage pressure compensator with at least two bladder or membrane accumulators, which forms the interface between seawater and intermediate pressure space, and a piston or spring-piston accumulator, which establishes contact with the hydraulic reservoir. Instead of one, there are now at least two interfaces; this increases the tightness and durability. In addition, a preload which is above the seawater pressure level can be set in the piston or spring piston accumulator.
  • Fig. 1 cross section through a first embodiment of the
  • Pressure compensation device with two bladder accumulators and a piston accumulator device in an annular cavity
  • FIG. 2 a circuit diagram of a pressure compensation device like FIG. 1, but with
  • Fig. 3 Block diagram of the pressure compensation device according to Fig. 1 between
  • Fig. 4 cross section through a further embodiment of the
  • FIG. 1 shows a cross section through a first embodiment of the pressure compensation device 1 with a first accumulator 2a with a flexible wall area and a second accumulator 2b with a flexible wall area, both accumulators 2a and 2b being designed as bladder accumulators with a bladder 18 or 19 as a flexible wall area .
  • the bladder 18 has a first opening 16 to the seawater area 7 and the bladder 19 has a second opening 17 to the fluid area 8.
  • a piston accumulator 3 with a spring-loaded piston 5 is arranged between the first accumulator 2a and the second accumulator 2b. With 11 a space between the outer walls of the first bladder 18 and the second bladder 19 is designated, which is filled with a transmission medium.
  • the pressure compensation device 1 is constructed such that the two accumulators 2a and 2b, the piston accumulator 3 and the intermediate space 11 are arranged in an annular pressure space (intermediate cavity 36, see FIG. 5) of a housing 27.
  • 2 shows the basic diagram of a circuit diagram of a pressure compensation device 1 with - arranged and connected in series - two accumulators 2a, 2b with a flexible wall area 4 and a piston accumulator 3 with a displaceable piston 5.
  • the accumulators 2a, 2b with flexible wall area 4 are explained in FIG. 1 using the example of two bladder accumulators and in FIG. 4 using the example of two membrane accumulators.
  • the flexible wall 4 is explained in FIG. 1 using the example of an impenetrable bladder and in FIG. 4 using the example of an impenetrable membrane.
  • the first accumulator 2a (membrane accumulator) has a (interior) first interior 2.1 and a (interior) second interior 2.2, which are separated from one another by a flexible wall area 4, for example an elastic metal membrane (or a rubber bladder according to FIG. 1) are sealed against each other.
  • the second accumulator 2b (membrane accumulator) is constructed in accordance with the first membrane accumulator 2a, a third interior 2.3 and a fourth interior 2.4 being present, which are separated by a flexible wall area 4.
  • the piston accumulator 3 has a (interior) first interior 3.1 and an (interior) second interior 3.2, which are separated from each other by the displaceable piston 5 and sealed against one another by seals.
  • a filter 38 for the seawater is arranged in front of the first reservoir 2a.
  • the seawater filter can serve to prevent dirt particles from clogging the bore to the membrane 9.1.
  • a displacement sensor 10 is assigned to the displaceable piston 5 of the piston accumulator 3. With 39 a container is designated.
  • FIG. 3 illustrates a block diagram of the pressure compensation device 1, for example also according to FIG. 1, between the seawater area 7 and the fluid area 8.
  • the first interior 2.1 of the first reservoir 2a is located with the seawater region 7 and the fourth interior 2.4 of the second reservoir 2b with the fluid region 8 in connection.
  • the second interior 2.2 of the diaphragm accumulator 2a and the first interior 3.1 of the piston accumulator 3 functionally form a common space 11.
  • the space 11 can be designed as a single space.
  • the intermediate space 11 can also consist of two individual spaces, that is to say of the second interior 2.2 and the first Interior 3.1 exist, which are connected by a pipe or the like.
  • 12 denotes a first boundary, for example a membrane 9.1
  • 13 denotes a second boundary, for example a membrane 9.2.
  • the two boundaries 12, 13 form a double security (redundancy) against ingress of sea water into the fluid region 8.
  • the first interior 2.1 of the first reservoir 2a is filled with sea water (first medium 24), which loads the one side of the membrane 9.1 with the ambient pressure prevailing in the water.
  • the water pressure in the sea water area 7 and in the first interior 2.1 is the same.
  • a second medium 25 transmission medium
  • the second medium 25 is pressurized by the other side of the membrane 9.1, so that the intermediate space 11 forms an intermediate pressure space.
  • the pressure of the medium 25 continues to stress one side of the second membrane 9.2.
  • the second interior 3.2 of the piston accumulator 3 is filled with a medium, preferably with transformer oil.
  • the system device downstream of the pressure compensation device 1 can be designed as a container-like module, for example container 39 (cf. FIG. 2), it being possible for a plurality of such modules to be deposited on the seabed.
  • the container is filled with a dielectric liquid, for example hydraulic oil, so that all components in the module are immersed in the liquid.
  • Pressure compensation device 1 achieves pressure compensation between the interior of the container and the external environment (sea water region 7) in such a way that the liquid in the container is pressurized to the same pressure as prevails in the external environment.
  • the pressure compensation device 1 has at least two separating surfaces or interfaces: a flexible separating element (membrane 9 or bladder), which is in contact with the sea water on one side, and a flexible separating element (membrane 9 or bladder), which is on the other side is acted upon by the liquid that is in the container.
  • the intermediate space 11 is arranged between the two separating elements.
  • the pressure compensation device 1 presented here has the particular advantage that sea water which has inadvertently penetrated through the membrane 9.1 does not get (directly) into the container, but rather remains blocked by the piston 5 in the intermediate space 11 and can be removed there. There is therefore a double security against ingress of sea water.
  • the piston 5 of the piston accumulator 3 is acted upon by a compression spring 14, whereby the medium 25 is under a prestress.
  • the preload pressure is slightly higher than the ambient pressure, for example 0.5 to 10 bar, so that sea water cannot penetrate into the downstream device.
  • the displacement sensor 10 is assigned to the piston 5 and monitors the position of the piston 5.
  • the first reservoir 2a has a first membrane 9.1 and the second reservoir 2b has a second membrane 9.2.
  • the first flexible membrane 9.1 is supported on a first membrane plate 22, for example a rigid sheet, and the second flexible membrane 9.2 is supported on a membrane plate 23.
  • a compression spring 15 In the first interior 2.1 there is a compression spring 15, one end of which is supported on the diaphragm plate 22 and the other end of which is supported in a recess 28 in the cover plate of the housing 27.
  • FIG. 5 shows, in perspective, in section the annular pressure space (between cavity 36) of a housing 27 as part of the pressure compensation device 1.
  • a pressure compensation device 1 for example according to FIGS. 1 and 4
  • a hollow cylinder arrangement 29 - cut in half in FIG. 5 - has a hollow cylinder jacket 31 and a hollow cylinder interior 30.
  • the housing 29 of the pressure compensation device 1 has the shape of the hollow cylinder arrangement 29.
  • the second opening 17 is connected to a container 39, for example a container-like module, via a second connection 21, for example a pipe.
  • the first opening 16, for example a bore is assigned to the seawater region 7 via a first connection 20, for example a pipe.
  • the hollow cylinder arrangement 29 is composed of an outer (first) hollow cylinder 32 and an inner (second) hollow cylinder 33 arranged coaxially therewith, which have an outer hollow cylinder jacket 34 or an inner hollow cylinder jacket 35. Between the outer hollow cylinder jacket 34 and the inner hollow cylinder jacket 35, ie in the cylinder jacket 31 of the hollow cylinder-like housing 27 An annular intermediate cavity 36 is provided coaxially. 1, at least two accumulators 2a, 2b (bladder accumulators) and a piston accumulator 3 or, according to FIG. 4, two accumulators 2a, 2b (membrane accumulators) are arranged in the intermediate cavity 36. In a central opening of the hollow cylinder space 30, an actuating axis 37 shown in broken lines, for example a hydraulic cylinder (not shown) or a drive spindle (not shown) is arranged to save space.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

L'invention concerne un dispositif de compensation de pression (1) mis au point pour des applications sous-marines, qui permet d'étanchéifier par rapport à la zone maritime (7) environnante un espace intérieur d'un contenant (39), qui forme une zone de fluide (8). Le dispositif de compensation de pression (1) permet de relever un niveau de pression de la zone de fluide (8) au moins sur la pression ambiante régnant dans la zone maritime (7). Le dispositif de compensation de pression (1) est élaboré de telle manière qu'au moins deux accumulateurs (2 ; 2a, 2b) présentant une zone de paroi (4) flexible sont disposés de manière alignée. Les deux accumulateurs (2 ; 2a, 2b) ou plus sont disposés dans un espace de pression annulaire d'un boîtier (27). Par ailleurs, l'invention propose une utilisation du dispositif de compensation de pression (1) servant à soumettre à l'action d'une pression au moins un contenant (39) rempli d'un fluide pour un axe de réglage (37) hydraulique.
EP19784045.7A 2018-10-11 2019-10-07 Dispositif de compensation de pression, adapté pour être utilisé sous l'eau Active EP3864302B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018217369.9A DE102018217369A1 (de) 2018-10-11 2018-10-11 Druckkompensationseinrichtung, eingerichtet für Anwendungen unter Wasser
PCT/EP2019/077056 WO2020074431A1 (fr) 2018-10-11 2019-10-07 Dispositif de compensation de pression mis au point pour des applications sous-marines

Publications (2)

Publication Number Publication Date
EP3864302A1 true EP3864302A1 (fr) 2021-08-18
EP3864302B1 EP3864302B1 (fr) 2023-08-16

Family

ID=68172213

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19784045.7A Active EP3864302B1 (fr) 2018-10-11 2019-10-07 Dispositif de compensation de pression, adapté pour être utilisé sous l'eau

Country Status (3)

Country Link
EP (1) EP3864302B1 (fr)
DE (1) DE102018217369A1 (fr)
WO (1) WO2020074431A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230166821A1 (en) * 2020-04-30 2023-06-01 Versitech Limited Compact, lightweight hydraulic manipulation system for underwater applications
DE102022201230B4 (de) 2022-02-07 2023-12-14 Robert Bosch Gesellschaft mit beschränkter Haftung Sicherheitsvorrichtung für ein linear betätigtes Prozessventil und System umfassend die Sicherheitsvorrichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2290337A (en) * 1940-11-28 1942-07-21 Knauth Walter Theodore Alleviator
EP2169690B1 (fr) * 2008-09-24 2012-08-29 ABB Technology AG Compensateur de pression
EP2501608B1 (fr) * 2010-01-19 2015-03-18 Siemens Aktiengesellschaft Système de compensation de pression sous-marine
EP2610881B1 (fr) * 2011-12-28 2014-04-30 Siemens Aktiengesellschaft Compensateur de pression pour dispositif sous-marin
EP2924231A1 (fr) * 2014-03-28 2015-09-30 Siemens Aktiengesellschaft Système de compensation de pression
EP3048619B1 (fr) * 2015-01-23 2017-05-17 Siemens Aktiengesellschaft Compensateur de pression pour dispositif sous-marin

Also Published As

Publication number Publication date
EP3864302B1 (fr) 2023-08-16
DE102018217369A1 (de) 2020-04-16
WO2020074431A1 (fr) 2020-04-16

Similar Documents

Publication Publication Date Title
EP3612735B1 (fr) Dispositif de compensation de la pression adapté aux applications sous-marines
EP3864302B1 (fr) Dispositif de compensation de pression, adapté pour être utilisé sous l'eau
DE102017219084A1 (de) Elektrohydraulisches System mit einer hydraulischen Achse und mindestens einem geschlossenen Hydraulikkreislauf
DE102013011115A1 (de) Vorrichtung zum Einstellen eines Mediendruckes gegenüber einem Umgebungsdruck
DE102019001436A1 (de) Verfahren zum Ermitteln eines Speicherdruckes nebst zugehöriger Vorrichtung
DE102016003153A1 (de) Speichervorrichtung und hydropneumatische Federung
DE102018201456A1 (de) Hydraulische Baueinheit und autarke servohydraulische Linearachse mit einer solchen hydraulischen Baueinheit
DE202011052463U1 (de) Hydropulsvorrichtung, insbesondere Innendruckpulser
DE102014010567A1 (de) Ventilblockmodul für einen Stellzylinder
WO2018028942A1 (fr) Système hydraulique et mécanisme ressort-amortisseur
DE102018207946A1 (de) Hydraulisches System
DE102016206478A1 (de) Vorrichtung und Verfahren zur Veränderung eines Drucks in einem Kraftstoffbehälter
DE102015111428A1 (de) Fluidbehälter für ein hydraulisches System, hydraulisches System und Verfahren zum Betreiben eines hydraulischen Systems
EP3511570A1 (fr) Procédé de compression et de stockage d'un fluide
DE102012024851A1 (de) Druckregelventil
WO2012055486A1 (fr) Bloc de commande hydraulique
DE102011002945A1 (de) Kompakte hydraulische Großenergiespeicher
DE19701303A1 (de) Kolbenspeicher mit Dichtungsvorrichtung
DE2406918C2 (de) Gas- und druckdichte Vorrichtung für die Durchführung von Antriebsbewegungen durch eine Wand
EP3864300A1 (fr) Système hydraulique destiné à être utilisé sous l'eau, comprenant un entraînement de réglage hydraulique
DE10209663C1 (de) Druckspeicher
DE102022201230B4 (de) Sicherheitsvorrichtung für ein linear betätigtes Prozessventil und System umfassend die Sicherheitsvorrichtung
DE102018112523A1 (de) Reservoir für ein Hydrauliksystem
CH591020A5 (en) High pressure storage reservoir - has separator of two longitudinally displaceable pistons
DE102021202041A1 (de) Stangendichtsystem und Zylinderkopf für einen Hydraulikzylinder

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210511

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20230515

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502019008982

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20230816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231117

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231218

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231116

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231216

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231117

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20231218

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20231031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231007

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231031

26N No opposition filed

Effective date: 20240517

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20231116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231016

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231031

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231116