WO2022187879A1 - Vorrichtung und verfahren zur geregelten bereitstellung von hochdruckfluid - Google Patents
Vorrichtung und verfahren zur geregelten bereitstellung von hochdruckfluid Download PDFInfo
- Publication number
- WO2022187879A1 WO2022187879A1 PCT/AT2022/060064 AT2022060064W WO2022187879A1 WO 2022187879 A1 WO2022187879 A1 WO 2022187879A1 AT 2022060064 W AT2022060064 W AT 2022060064W WO 2022187879 A1 WO2022187879 A1 WO 2022187879A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- fluid
- control unit
- plunger
- linear motor
- Prior art date
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims description 17
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 230000010349 pulsation Effects 0.000 claims description 8
- 230000001276 controlling effect Effects 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010327 methods by industry Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F13/00—Pressure exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
- F04B23/06—Combinations of two or more pumps the pumps being all of reciprocating positive-displacement type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/04—Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
Definitions
- the invention relates to a device for the regulated provision of high-pressure fluid by means of a pressure generator formed with a fluid supply and a fluid supply in the high-pressure cylinder and in this movable high-pressure plunger with a drive of the same and a supply of high-pressure fluid in a high-pressure line, optionally with a pulsation damper in this, with a pressure sensor for a control of the drive and, if necessary, a switchable pressure relief valve.
- the invention also relates to a method for providing high-pressure fluid for consumers, for example water jet cutting systems with controllable parameters when using pressure generators with high-pressure cylinders and high-pressure plungers according to the above device.
- pressure fluctuations that can result from pressure intensifiers must be minimized for procedural reasons, but also for material reasons, of system components, because these pressure fluctuations cause alternating mechanical loads on parts of the device and can lead to material fatigue or fatigue fractures.
- EP 3012075 B1 discloses a method for operating a system for water jet cutting with a high-pressure pump that has several plungers and is connected to a water tank, with the plungers of the high-pressure pump being moved via a crankshaft, stopped by a drive using a servomotor and put back into operation be taken. Bearing play on the crankshaft and also on the plunger piston joints and the inertial forces during acceleration and deceleration in the course of controlling the drive can have a disadvantageous effect.
- the known devices that can be assigned to the prior art can have disadvantages in terms of a complicated design, noticeable wear, complicated controllability with the speed possibly being too low, and improved economics.
- the pressure generator or several cooperating pressure generators each have an electric linear motor with a stator and forcer for driving the high-pressure plunger in the high-pressure cylinder and the electric linear motor(s) with an electric control unit which has an electric Includes power supply, a servo converter for electric linear motors, a programmable computing unit and measured value feeds connected (are).
- the possibly cooperating pressure generators each have an electric linear motor with stator and forcer, whereby the designations “stator and forcer” do not describe an embodiment of a force introduction, but describe a definition of the motor parts that can be moved relative to one another in the device.
- a power flow takes place directly in the direction of movement of the high-pressure plunger without a usual path with a conversion of rotational energy into translational energy, as a result of which the inertia forces are minimized during acceleration or deceleration of the transmission parts
- electric linear motors For a direct translational working movement, electric linear motors have a simple design and direct, precise controllability using an electric control unit.
- An electrical control unit which includes an electrical energy supply, a servo converter for one or more electrical linear motors, which can also be positioned in cooperating pressure generators, a programmable computing unit and measured value feeds, can precisely regulate the respective movement of the individual electrical linear motors with the high-pressure plungers in a timely manner .
- the forcer of the linear motor and thus the high-pressure plunger can be moved at increased speed into any filling position in the high-pressure cylinder by means of the electrical control unit and can be positioned in this way for a programmable or controllable high-pressure stroke.
- the device for the regulated provision of high-pressure fluid can be formed with two or more than two pressure generators, which are connected to a common high-pressure line. Connecting the electric linear motors to an electric control unit enables the pressure generators to be combined functionally with regard to a reduction in pressure fluctuations in the high-pressure line or the need for a pulsation damper.
- the pressure generators are formed with two high-pressure cylinders with high-pressure plungers located opposite one another at a distance in the axial direction, and an electric linear motor connected to an electric control unit is positioned between these high-pressure cylinders.
- the forcer or the moving part of the linear motor has fastening means or power connections for the high-pressure plunger.
- a filling with a fluid from a high-pressure cylinder and a pressure feed of high-pressure fluid into a high-pressure line from the opposite high-pressure cylinder with an intermediate controllable electric linear motor can take place at the same time.
- Pressure generators with two or more coupled electric linear motors can be driven in a regulated manner with an electric control unit, with a parallel or serial arrangement of the forcers of linear motors in the pressure system on the high-pressure plunger being usable to increase the translatory forces.
- the present invention also relates to a method for providing high-pressure fluid with controllable parameters for consumers of the type mentioned initially, for example for water jet cutting systems.
- the control unit includes an energy supply, a servo converter for the electric linear motor(s), a programmable computing unit with measured value inputs of at least high fluid pressure and plunger position in the high-pressure cylinder(s) and regulates the servo converter.
- the power flow in the high-pressure plunger is thus achieved in a favorable manner without converting rotational energy into linear energy, with a simple, robust, compact design of the transmission means, high accuracy due to increased detection of the current position of the parts, improved precision of the movement control at high speed and however also Force impacts of the stator in an anchoring of the same at a high acceleration of the forcer that are given in fractions of milliseconds.
- the high-pressure plunger transmits a signal to the control unit when a definable penetration depth into the high-pressure cylinder is reached, and the servo converter is regulated in such a way that the forcer of the linear motor moves the high-pressure plunger at increased speed into a changed position, in particular to the home position for a maximum compression stroke.
- a control unit with a servo converter synchronizes the linear motor movements of the individual devices and regulates them according to an actual pressure determination in the high-pressure line and the set specifications.
- Fig. 1 high-pressure pump with a pressure generator and electric linear motor drive
- Fig. 1 A high-pressure curve pump like.
- Fig. 1 Fig. 2 High-pressure pump with phased pressure generator
- Fig. 2A High-pressure curve Pump like.
- Fig. 2 Fig. 3 High-pressure pump with two oppositely positioned pressure generators in the axial direction with an electric linear motor drive
- FIG. 3A High-pressure curve pump like.
- Fig. 3 Fig. 4 high-pressure pump with synchronized pressure generators
- Fig. 5 high-pressure pump with coupled linear motor drive
- Fig. 6 high-pressure pump with longitudinally coupled linear motor drive
- Fig. 7 high-pressure pump with two-stage pressure increase
- 1 shows a high-pressure pump with a fluid inlet 1, a pressure generator D, an electric linear motor L and a high-pressure connection 22.
- shut-off valve for the fluid 2; Pressure reducing agent (if required): 3; Booster pump: 4 for rapid filling of the high-pressure cylinder: 15 of the pressure generator: D; Filter unit for cleaning the fluid: 5; Check suction valve: 13.
- the high-pressure pumps according to the invention can be used in a favorable manner for all fluid media.
- a pressure generator D with a high-pressure cylinder 15 and a high-pressure plunger 17 that can be pushed into this is fixed on a base plate 6 via a connecting flange 16 .
- the high-pressure plunger 17 is moved via a plunger attachment 18 directly in the axial direction thereof by a forcer 10 of an electric linear motor L, with a stator 9 being connected to the base plate 6 .
- the terms forcer and stator mean the moving part and the stationary part, regardless of the structure of the parts! It is also possible for the stator to be designed as a moving part and for the forcer to be stationary.
- the electric linear motor L is connected to an electric control unit 12, which includes at least one electric power supply, a servo converter for the electric linear motor L, a programmable computing unit and measured value feeds.
- An electrical control unit 12 regulates the direction of movement of the forcer and a direct force effect on the high-pressure plunger 17 in a high-pressure cylinder 15 of a pressure generator D, with a non-return suction valve 13 being provided in the fluid inlet and a further non-return valve 14 for conveying high-pressure fluid.
- a pressure sensor 21 transmits measured values for a respective fluid pressure in the high-pressure range to the control unit 12, which measured values can contribute to the regulation of the linear motor movement.
- a pressure relief valve 23 with a drainage connection 24 can be provided in the line 20 for the high-pressure fluid.
- FIG. 1A a diagram of a course of pressure [p] in the high-pressure line 22 of a device according to Fig. 1 as a function of time [t] is shown schematically in a diagram.
- the high-pressure plunger 17 is moved into the high-pressure cylinder by a movement of the forcer 10 of the electric linear motor L, controlled by the control unit 12 15 is pressed, with the fluid pressure [p] in the high-pressure line 20 rising to a specified pressure pi in the area a.
- the high-pressure plunger 17 is returned by the forcer 10 of the electric linear motor L, which return stroke can be done at increased speed or in a shorter time, controlled by the electric control unit 12 .
- the pressure valve 14 closes and the fluid pressure in the pump system would fall to ambient pressure as a result of a withdrawal in area g of the illustration according to FIG. 1A.
- a pulsation damper 20 in the high-pressure line By means of a pulsation damper 20 in the high-pressure line, however, high-pressure fluid is subsequently supplied to the system, so that a pressure drop p2 in area d is delayed.
- FIG. 2 shows a high-pressure pump with a pressure generator D that is phased or operated in phase.
- the individual pressure generators D, D', D" are each constructed in the same way as that shown in FIG. 1, but the associated electric linear motors L, L', L" are connected to a control unit 12 which controls the movement of the high-pressure plungers 17, 17', 17''. In this way, fluid delivery into the high-pressure line 20 is balanced and pressure fluctuation therein is minimized, as illustrated in FIG. 2A.
- FIG. 3 schematically shows a high-pressure pump with two pressure generators D and D′, opposite one another in the axial direction, with an electric linear motor in between.
- the forcer 10 of an electric linear motor L is connected to the opposing high-pressure plungers 17, 17' of the two high-pressure cylinders 15, 15' of the pressure generator D, D' by means of plunger attachments 18, 18' to form a highly advantageous, compact, backlash-free, lightweight unit tied together.
- FIG. 3A A representation of the pressure [p] over time [t] in an aforementioned high-pressure pump in operation is shown in FIG. 3A.
- the two high-pressure cylinders 15, 15′′ which deliver alternatively and are filled with fluid, cause a largely stable delivery pressure pi in the high-pressure fluid with small pressure drops p 2 , caused by a switchover of the two pressure generators D, D′′.
- a high-pressure pump with synchronized pressure generators can be seen schematically in FIG.
- Such a fluid delivery device which has minimal pressure fluctuations in the area of the high-pressure connection 22, is formed with four synchronized pressure generators D, D", D", D"' or with two devices with pressure generators located opposite one another in the axial direction.
- FIG 5 shows a high-pressure pump with two pressure generators D, D' opposite each other in the axial direction, with an arrangement of electric linear motors L parallel to the axis being provided to increase the translational forces between the hydraulic pressure generators D, D'.
- Fig. 6 shows schematically a serial arrangement of electric linear motors L
- L' between the hydraulic pressure generators D, D'. 7 shows a high-pressure pump with a double pressure increase by two pumps driven by electric linear motors L, L'.
- the first pressure increase of the fluid from an inlet pressure 1 in a high-pressure area takes place by means of a first linear motor pump system.
- a further increase in the pressure of the high-pressure fluid from this high-pressure area is effected by means of a second electric linear motor pump system.
- the control unit 12 regulates and coordinates the two electric linear motors L, L' of the two pumps.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Reciprocating Pumps (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/549,620 US20240151217A1 (en) | 2021-03-09 | 2022-03-08 | Device and method for controlled supply of high-pressure fluid |
EP22709550.2A EP4305305A1 (de) | 2021-03-09 | 2022-03-08 | Vorrichtung und verfahren zur geregelten bereitstellung von hochdruckfluid |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50167/2021A AT524763A1 (de) | 2021-03-09 | 2021-03-09 | Vorrichtung und Verfahren zur geregelten Bereitstellung von Hochdruckfluid |
ATA50167/2021 | 2021-03-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022187879A1 true WO2022187879A1 (de) | 2022-09-15 |
Family
ID=80736011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT2022/060064 WO2022187879A1 (de) | 2021-03-09 | 2022-03-08 | Vorrichtung und verfahren zur geregelten bereitstellung von hochdruckfluid |
Country Status (4)
Country | Link |
---|---|
US (1) | US20240151217A1 (de) |
EP (1) | EP4305305A1 (de) |
AT (1) | AT524763A1 (de) |
WO (1) | WO2022187879A1 (de) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19840809A1 (de) * | 1998-09-07 | 2000-03-09 | Gunter Riedel | Linearer Direktantrieb für einen in zwei Bewegungsrichtungen wirkenden Verdrängerkörper eines Druckerzeugers für einen Impulsprüfstand zur dynamischen Impulsdruckprüfung fluidischer Bauelemente unter Ausnutzung kapazitiver Energien |
US6506030B1 (en) * | 1999-01-05 | 2003-01-14 | Air Products And Chemicals, Inc. | Reciprocating pumps with linear motor driver |
DE202012001919U1 (de) * | 2012-02-23 | 2012-03-19 | Bhdt Gmbh | Hydraulikantrieb für einen Druckübersetzer |
EP2610490B1 (de) | 2011-12-30 | 2015-07-15 | BHDT GmbH | Hydraulikantrieb für einen Druckübersetzer |
EP3012453A2 (de) | 2014-10-20 | 2016-04-27 | BHDT GmbH | Hydraulikantrieb für einen druckübersetzer |
EP3012075B1 (de) | 2014-10-20 | 2017-12-13 | Andreas Perndorfer | Verfahren zum betreiben einer anlage zum wasserstrahlschneiden sowie anlage zum wasserstrahlschneiden |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008036528A1 (de) * | 2008-08-06 | 2010-02-11 | Bentec Gmbh Drilling & Oilfield Systems | Verfahren zum Betrieb einer mehrpulsigen Kolbenpumpe, mehrpulsige Kolbenpumpe sowie Herstellung einer solchen |
US20210102530A1 (en) * | 2018-05-01 | 2021-04-08 | Cameron International Corporation | Fluid pumping using electric linear motor |
-
2021
- 2021-03-09 AT ATA50167/2021A patent/AT524763A1/de unknown
-
2022
- 2022-03-08 EP EP22709550.2A patent/EP4305305A1/de active Pending
- 2022-03-08 WO PCT/AT2022/060064 patent/WO2022187879A1/de active Application Filing
- 2022-03-08 US US18/549,620 patent/US20240151217A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19840809A1 (de) * | 1998-09-07 | 2000-03-09 | Gunter Riedel | Linearer Direktantrieb für einen in zwei Bewegungsrichtungen wirkenden Verdrängerkörper eines Druckerzeugers für einen Impulsprüfstand zur dynamischen Impulsdruckprüfung fluidischer Bauelemente unter Ausnutzung kapazitiver Energien |
US6506030B1 (en) * | 1999-01-05 | 2003-01-14 | Air Products And Chemicals, Inc. | Reciprocating pumps with linear motor driver |
EP2610490B1 (de) | 2011-12-30 | 2015-07-15 | BHDT GmbH | Hydraulikantrieb für einen Druckübersetzer |
DE202012001919U1 (de) * | 2012-02-23 | 2012-03-19 | Bhdt Gmbh | Hydraulikantrieb für einen Druckübersetzer |
EP3012453A2 (de) | 2014-10-20 | 2016-04-27 | BHDT GmbH | Hydraulikantrieb für einen druckübersetzer |
EP3012075B1 (de) | 2014-10-20 | 2017-12-13 | Andreas Perndorfer | Verfahren zum betreiben einer anlage zum wasserstrahlschneiden sowie anlage zum wasserstrahlschneiden |
Also Published As
Publication number | Publication date |
---|---|
EP4305305A1 (de) | 2024-01-17 |
AT524763A1 (de) | 2022-09-15 |
US20240151217A1 (en) | 2024-05-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2610490B1 (de) | Hydraulikantrieb für einen Druckübersetzer | |
EP1318906B1 (de) | Steuervorrichtung für eine hydraulische presse sowie verfahren zu deren betrieb | |
EP2676036B1 (de) | Druckspeicherlose hydraulische antriebsanordnung für und mit einem verbraucher, insbesondere für pressen sowie verfahren zum betreiben einer solchen druckspeicherlosen hydraulischen antriebsanordnung | |
DE102015209074B3 (de) | Vorrichtung und verfahren zum steuern einer hydraulikmaschine | |
EP2238338A1 (de) | Druckregelventil zur regelung des drucks in einem hochdruck-kraftstoffspeicher | |
EP2267317A2 (de) | Hydrauliksystem | |
EP2610049B1 (de) | Verfahren zur Steuerung einer hydraulischen Presse | |
DE102009021866A1 (de) | Hydroantrieb mit einer unabhängigen Speisepumpe | |
EP2249033B1 (de) | Vergleichmäßigung des Förderstroms bei oszillierenden Verdrängerpumpen | |
EP3504435B1 (de) | Hydrostatisches system und pumpstation für eine öl- oder gas-pipeline | |
EP0882180B1 (de) | Verteilereinspritzpumpe | |
DE10162988A1 (de) | Vorrichtung und Verfahren zur Regelung des Steuerventils einer Hochdruckpumpe | |
WO2022187879A1 (de) | Vorrichtung und verfahren zur geregelten bereitstellung von hochdruckfluid | |
DE19842830B4 (de) | Vorrichtung zum Betreiben eines Antriebskolbens in einem Antriebszylinder für das Spritzaggregat einer Formmaschine | |
EP1826396A1 (de) | Common-Rail-Kraftstoffsystem | |
DE19654781A1 (de) | Hilfseinrichtung zur Realisierung einer Redundanz für die Energieversorgung von Flugsteuerungsantrieben | |
EP3336350B1 (de) | Einrichtung zum partiellen bearbeiten von materialien sowie verfahren zur funktionsunterbrechung eines fluidstroms | |
WO2023006270A1 (de) | Hochdruckplungerpumpe und verwendung einer hochdruckplungerpumpe | |
EP0982527A1 (de) | Schmierstoffgeber | |
DE102018115301B4 (de) | Hydrauliksystem für eine Formgebungsmaschine und Verfahren zum Betreiben eines solchen | |
AT521822B1 (de) | Kunststoffformgebungsmaschine und Verfahren zum Betreiben einer Kunststoffformgebungsmaschine | |
DE202012001919U1 (de) | Hydraulikantrieb für einen Druckübersetzer | |
DE102016202916B4 (de) | Verfahren eingerichtet zur Steuerung eines Kraftstoffzufuhrsystem für einen Verbrennungsmotor | |
EP2791505B1 (de) | Druckübersetzer, verfahren zum betreiben eines druckübersetzers sowie verwendung eines druckübersetzers | |
DE102009011441B4 (de) | Hydraulikantrieb |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22709550 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18549620 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2022709550 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2022709550 Country of ref document: EP Effective date: 20231009 |