EP1384899A2 - Accumulateur pour un liquide - Google Patents

Accumulateur pour un liquide Download PDF

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Publication number
EP1384899A2
EP1384899A2 EP03016283A EP03016283A EP1384899A2 EP 1384899 A2 EP1384899 A2 EP 1384899A2 EP 03016283 A EP03016283 A EP 03016283A EP 03016283 A EP03016283 A EP 03016283A EP 1384899 A2 EP1384899 A2 EP 1384899A2
Authority
EP
European Patent Office
Prior art keywords
bellows
pressure
housing
memory according
gas
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.)
Withdrawn
Application number
EP03016283A
Other languages
German (de)
English (en)
Other versions
EP1384899A3 (fr
Inventor
Alfred Trzmiel
Roland Meyer
Andreas Wild
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.)
Hilite Germany GmbH
Original Assignee
Hydraulik Ring 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 Hydraulik Ring GmbH filed Critical Hydraulik Ring GmbH
Publication of EP1384899A2 publication Critical patent/EP1384899A2/fr
Publication of EP1384899A3 publication Critical patent/EP1384899A3/fr
Withdrawn legal-status Critical Current

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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
    • F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
    • F15B1/103—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means the separating means being bellows
    • 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
    • F15B2201/315—Accumulator separating means having flexible separating means
    • F15B2201/3153—Accumulator separating means having flexible separating means the flexible separating means being bellows
    • 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

  • the invention relates to a memory for a liquid medium the preamble of claim 1.
  • Piston and diaphragm accumulators are used in the automotive sector, which have two variable volumes separated by a piston or a diaphragm.
  • the reservoir serves as a reservoir for a liquid medium, usually oil, which is located in one of the chambers and is kept under pressure by a gas in the second chamber.
  • the accumulators can be adapted to different operating conditions by varying the size and the preload pressure of the gas.
  • the piston as well as the membrane are subject to leakage, ie gas escapes from the gas space via the piston seal or through diffusion through the membrane.
  • Membrane accumulators in particular are very susceptible to diffusion. The diffusion can be reduced by means of multilayer membranes, but it is not completely avoidable.
  • the gas pressure in both systems is increasingly lost over the lifespan of the accumulator, which leads to a restriction of the usable pressure range and a reduction in the usable accumulator volume.
  • Large temperature differences in operation with large piston or membrane movements increase gas loss.
  • the membrane is susceptible to breakage at large deformations at low temperatures. Common full gases are, for example, N 2 or CF 4 and a mixture of these gases.
  • the gas to be used is selected depending on the operating temperature range and the permissible diffusion or the permissible gas loss over the service life.
  • the materials of the piston seal and the membrane must be matched to the media used. Depending on the medium, the seal may swell or the membrane may fail.
  • the invention has for its object the generic Train memory so that reliable operation over the Period of use of the memory is ensured.
  • the receiving space for the liquid medium and the chambers for the gas through one stretchable bellows separated from each other.
  • the change in volume of this Bellows is caused by a change in the geometry of the bellows waves.
  • the Bellows can be connected to other components in welding in a pressure-tight manner.
  • the bellows itself is flawless tight, so that the gas neither through the bellows nor to the Sealing points can escape.
  • the memory described below serve as a reservoir for a liquid medium, mostly oil, and are used in the automotive sector used.
  • a liquid medium mostly oil
  • exemplary 16 will be described in more detail in an electronic-hydraulic Control device for transmissions of motor vehicles be used. With these controls, you can an automated manual transmission selected the alleys and the desired gears of the manual transmission are engaged.
  • the memory has one Cup-shaped housing 1 with a cylindrical jacket 2 and one Bottom 3.
  • the bottom 3 there is at least one opening 4, above which connects the interior of the housing to a hydraulic system stands.
  • a cover 5 is placed on the end face of the housing shell 2, the at least one filling opening 6 for a pressure medium, preferably gas.
  • the filling opening 6 is through a closure piece 7 closed pressure-tight.
  • the filling opening 6 can for example be welded shut. It is also possible to use the filling opening 6 to be provided with a check valve that is pressure-tight Closure guaranteed.
  • the filling opening 6 opens into a chamber 8, which is part of the Cover 5, a bellows 9 and a bottom 10 is limited.
  • the side bellows 9 forms the side wall of the chamber 8, which is pressure-tight to the Inside of the cover 5 is connected.
  • the bottom 10 is also connected pressure-tight to the other end of the bellows 9.
  • the Bellows 9 is advantageously made of stainless steel.
  • the disk-shaped cover 5 is pressure-tight along its edge connected to the housing shell 2, such as welded or glued.
  • the housing shell 2 surrounds the bellows 9 at a distance.
  • the medium located in the housing space 11 such as oil or another liquid, can reach between the housing shell 2 and the bellows 9 as far as the housing cover 5.
  • the medium in the housing space 11 is under the respective system pressure p s
  • the gas in the chamber 8 is under the respective gas pressure p g .
  • the bellows 9 is sealed so that the gas enclosed by it cannot escape into the housing space 11. Any suitable gas can be used to fill the chamber 8, in particular N 2 or CF 4 .
  • Fig. 1 shows the case that the medium located in the housing space 11 is under the maximum system pressure p max .
  • the bellows element 9, 10 is compressed by elastic deformation of the bellows 9 until the pressure p g of the gas in the chamber 8 corresponds to the maximum pressure p max of the medium in the housing space 11.
  • Fig. 2 shows the case that the system pressure is minimal.
  • the bellows 9 is expanded by the pressure p g of the gas in the chamber 8.
  • the bellows 9 is stretched so far that the bottom 10 abuts the housing base 3.
  • the pressure p g of the gas in the chamber 8 thus corresponds to the minimum pressure of the gas p min .
  • the volume V g of the gas in the chamber 8 corresponds to the maximum volume V max .
  • the bottom 10 closes the opening 4 so that no medium of the hydraulic system can get into the housing space 11.
  • the pressure p 0 of the medium which is located in the area between the bellows 9 and the housing shell 2 corresponds to the pressure p g of the gas in the chamber 8.
  • the bellows accumulator 9, 10 is made of steel and can therefore be in one very wide operating temperature range can be used. It is possible to use this bellows accumulator in the aerospace industry, where very large temperature fluctuations can be expected.
  • As Filling gas any suitable gas can be used as it cannot diffuse out of the chamber 8 through the bellows 9. Thereby there is no loss of gas and it can always be the cheapest available Fill gas can be used.
  • the bellows element 9, 10 is up to depending on the design and geometry a certain differential pressure between the inside and the outside fillable. Is a higher gas preload pressure in the bellows element 9, 10 required, can be counter-pressure from the System side forth (housing interior 11) the differential pressure below the permissible limit. For this, the interior 11 filled with so much oil that there is no more air in the housing space 11 is present and the bellows 9 with the bottom 10 just the openings 4 tightly closed. Then the filling pressure of the Bellows accumulator 9, 10 can be increased almost arbitrarily, as by that medium to be viewed incompressibly in the housing space 11 on the Outside of the bellows 9, the pressure without deformation of the bellows element increases and therefore damage cannot occur.
  • the bellows 9 at one The pressure in the hydraulic system drops below the gas preload pressure is not damaged by closing the Bore 4 on the oil side of the back pressure at the preload level held. This can be done by the bellows 9 itself or the floor 10 can be reached, the maximum bellows stroke at the bottom 3 of the housing 1 rests and closes the opening 4. By an appropriate Formation of the opening 4 on the inside of the housing 1 the tightness of this closure can be ensured. Increases during the operation of the pressure in the housing space 11 above the set Biasing pressure in the chamber 8, the bottom 10 of the Bellows 9 pushed back and thus the opening 4 is released again. The memory can then fulfill its function.
  • the gas volume in the chamber 8 can via the closure piece 7 or via a incompressible medium, not miscible with the filling gas, for Take oil, for example. In this way, the pressure-filling volume characteristic of the bellows accumulator at the maximum permissible Bellows stroke can be adjusted.
  • the gas volume is in comparison to the previous embodiment reduced the use of the liquid 13.
  • the pressure-filling volume characteristic curve can be adjusted in its slope become.
  • the pressure-filling volume characteristic curve becomes steeper, if that incompressible medium 13 is used in the chamber 8.
  • FIGS. 3 and 4 are otherwise designed the same as the previous embodiment.
  • Fig. 3 shows the case that the system pressure in the housing space corresponds to 11 p max . Accordingly, the bottom 10 is pushed back so far by deformation of the bellows 9 that it is at a distance from the housing bottom 3.
  • Fig. 4 again shows the case where the system pressure is minimal.
  • the bellows 9 has accordingly expanded so far that the bottom 10 rests against the inside of the housing base 3 and closes the opening 4.
  • the volume of the gas 13 in the chamber 8 in this case is V max , while the volume of the liquid 13 has remained unchanged.
  • FIGS. 5 and 6 show a memory with the bellows element 9, 10, in whose chamber 8 is the gas 12. Similar to the embodiment 3 and 4, the gas volume is compared reduced to the embodiment according to FIGS. 1 and 2. The difference to the embodiment of FIGS. 3 and 4 is for volume reduction the gas 12 uses a solid 14 which at the Inside the lid 5 is attached. He has at least one Through opening 15, which connects the filling opening with the chamber 8.
  • the solid body 14 is a filler, the size of which varies the desired volume reduction of the gas 12 is aimed.
  • the Bellows 9 surrounds the solid body 14 at a distance.
  • Fig. 6 shows the conditions when the system pressure is minimal (p min ).
  • the bottom 10 of the bellows accumulator lies against the inside of the housing base 3 and closes the opening 4 in the housing base 3.
  • the pressure-filling volume characteristic curve can be obtained by appropriate size of the solid body 14 optimally adjust the bellows accumulator.
  • FIGS. 7 and 8 show a bellows accumulator, which is basically the same is designed like the embodiment according to FIGS. 1 and 2.
  • the only difference is the special design of the Housing 1 and the bottom 10 of the bellows accumulator 9, 10.
  • the housing bottom 3 is dome-shaped and has the center Opening 4 on the housing space 11 with the hydraulic system combines.
  • the opening 4 is in and inward externally protruding shoulder 16 of the housing base 3.
  • the bottom 10 of the bellows element 9, 10 has a cylindrical center Bulge 17, which is in the direction of the approach 16 of the Housing 1 extends and has a flat bottom part 18. At the Edge of the bottom 10 is the bellows 9 according to the previous embodiments attached. Located within the bellows element 9, 10 the gas 12 that completely fills the chamber 8.
  • the bottom part 18 of the bottom 10 is at a distance from the housing attachment 16.
  • the gas 12 has the minimum volume V min .
  • FIGS. 9 and 10 corresponds essentially the embodiment of FIGS. 7 and 8.
  • the incompressible Medium 13 which is an example of oil.
  • the incompressible medium 13 reduces the gas volume in the bellows accumulator 9, as shown in FIG 3 and 4 has been explained.
  • Fig. 9 shows the position of the bellows 9 when the system pressure in the housing space 10 is maximum. Then the bellows 9 is compressed so far until the internal pressure in chamber 8 acts from the outside System pressure corresponds. The bottom part 18 is at a distance from the housing attachment 16, so that the housing space 10 with the hydraulic system is connected via the opening 4.
  • the casing shell 2 surrounds the bellows 9 at a distance, so that the medium located in the housing space 10 also in the areas get between the housing shell 2 and the bellows 9 can.
  • FIGS. 11 and 12 essentially corresponds the embodiment of FIGS. 7 and 8. The only one The difference is that in the chamber 8 of the bellows accumulator 9, 10 corresponding to the exemplary embodiment according to FIG. 5 and 6, in addition to the gas 12, the solid body 14 is provided. Depending on the size of the gas volume in the chamber 8 is different. The body 14 is of the same design and attached to the cover 5 as in the embodiment according to FIGS. 5 and 6.
  • Fig. 11 again shows the case that the system pressure in the housing space is 11 p max , so that the bottom part 18 is at a distance from the shoulder 16 of the housing 1.
  • Fig. 12 shows the situation that the system pressure in the housing space is 11 p min .
  • the bellows 9 is stretched so far that the bottom part 18 bears against the end face 19 of the extension 16 and closes the opening 4.
  • FIG. 13 and 14 show a bellows accumulator, which in a control device for automated manual transmissions of vehicles is.
  • the control device is explained in more detail with reference to FIG. 16 become.
  • It has the housing 1, which has a receiving space 20 for the Bellows accumulator 9, 10.
  • One opens into the receiving space 20 Pressure bore 21 through which the medium with the system pressure Recording space 20 is supplied.
  • the gas is in the bellows accumulator 9, 10 12 housed.
  • the system pressure is p min , so that the bellows 9 has expanded so far that the bottom 10 of the bellows accumulator 9, 10 bears against the wall 24 of the receiving space 20 adjacent to the pressure bore 21.
  • the bellows 9 is accommodated in the receiving space 20 in such a way that the medium supplied via the pressure bore 21 can pass between the bore wall and the bellows 9 up to the closure 23.
  • the bellows accumulator 9, 10 is compressed until the pressure of the gas 12 in the chamber 8 corresponds to the maximum system pressure p max .
  • the bellows accumulator according to FIGS. 13 and 14 can correspond to the Embodiments according to FIGS. 3 and 4 and 5 and 6 additionally to the gas 12 with the incompressible medium 13 or the solid 14 be provided to the pressure-filling volume characteristic to the adapt to the respective application.
  • the control device can be general be used for transmissions, for example for Double clutch.
  • the control device has a magnet housing 25, housed in the (not shown) solenoid valves are.
  • the magnet housing 25 lies on a flange 26 (Not shown) gear housing and is sealed to it attached.
  • With the solenoid valves housed in the magnet housing 25 can operate one or more clutches, gears of the Manual gearbox inserted and gears selected for the gearbox become.
  • a cover 28 is on the magnet housing 25 attached, which covers the electronic components underneath.
  • the hydraulic medium which is located in the magnet housing 25 Solenoid valve is controlled, is conveyed by means of a pump, which is arranged on the underside of a motor 29.
  • the pump lies within the gearbox, while the motor 29 is behind protrudes outside. Most of the motor 29 is outside the gear housing.
  • a line 30 is connected to the pump, via which the hydraulic medium is sucked in in a known manner.
  • the transmission oil is advantageously used as the hydraulic medium is located in the gearbox.
  • the hydraulic housing 27 has a side extension 31 which is inside of the gear housing and on the underside of the pump and on the top of which the motor 29 is attached. That from the Pump-fed pressure medium passes through at least one (not ) line to the solenoid valves in the hydraulic housing 27.
  • the bellows accumulator 9, 10 is integrated in the control device. He is in accommodated in a receiving space 32 of the magnet housing 25. In the receiving space 32 opens a pressure hole 33 for the pressure medium.
  • the bellows 9 is fastened to the bottom 34 of the receiving space 32. Depending on the pressure under which the hydraulic medium in the receiving space 32 stands, the bellows 9 is more or less compressed.
  • the hydraulic housing 27 has a receiving space 35 for one Actuator 36 forming gear actuator with which the alleys of the manual transmission are selected and the gears are engaged can.
  • the actuating device 36 has a in the receiving space 35 lying, U-shaped adjusting element 37, which (not shown) with Actuators can be moved across the plane of the drawing.
  • These actuators can be piston-cylinder units, whose piston rods engage the legs of the control element 37.
  • Between the legs of the actuator 37 is a dome-shaped End of a two-armed shift lever 38 which on a Axis 39 is mounted, the receiving space 35 perpendicular to Shift lever 38 crosses and with both ends in the hydraulic housing 27 is stored.
  • the axis 39 extends parallel to Longitudinal axis of the control element 37.
  • Shift lever 38 carries a coupling piece 40 with which the shift lever 38 can be engaged with shift fingers 41, which on Shift shafts 42 of the manual transmission lying parallel to one another sit rotatably. 16, only one of the switching shafts 42 can be seen.
  • the shift lever 38 is axially slidable with a bush 43 the axis 39.
  • actuators preferably pressurized pistons provided on the right and left end faces of the actuating element in FIG. 16 37 attack.
  • this will be Control element 37 and thus also the shift lever 38 on the axis 39 moved in the desired direction. Since the coupling piece 40 of the shift lever 38 in the selected shift finger 40 of the corresponding Control shaft 42 engages, the control shaft is also hereby 42 moved in the desired direction.
  • the U-shaped adjusting element 37 is pivoted about the axis 39, whereby the coupling piece 40 into the corresponding Coupling seat 44 of the shift finger 41 of the corresponding Shift shaft 42 engages.
  • the shift lever 38 By pivoting the shift lever 38 around axis 39 thus becomes that for the respective alley of the manual transmission provided shift shaft 42 via the coupling piece 40 with the shift lever 38 coupled.
  • the actuating element 37 is replaced by the (not shown) Actuators moved so that by moving the selected Switching shaft 42 of the one in the selected alley Gear is engaged.
  • the axis 39 is at least one corresponding sensor 45, preferably a PLCD sensor, assigned to that in the hydraulic housing 27 is housed.
  • 15 shows the bellows accumulator 9, 10 in the receiving space 32. It is filled with the hydraulic medium which is under the respective system pressure. 15 shows the case in which the hydraulic medium in the receiving space 32 is below the maximum system pressure p max . If the system pressure drops to p min , the bellows accumulator 9, 10 expands so far that the base 10 closes the bore 33.
  • the bellows accumulator 9, 10 according to FIGS. 15 and 16 can have the same design be as in the previous embodiments.
  • the bellows accumulator can not only the gas 12, but also that incompressible medium 13 or the solid 14 additionally included.
  • FIG 17 shows an exploded view of a bellows accumulator with the bellows 9, which is closed at one end with the bottom 10 and with the other end is attached to the lid 5 pressure-tight.
  • the lid 5 with the bellows 9 and the bottom 10 delimit the chamber in which the gas, possibly together with the incompressible medium 13 and the solid body 14 is located.
  • This bellows accumulator is in the housing 1 is used as a preassembled unit that covers the floor 3 with the approach 16 in which the opening 4 is provided with which get the pressure medium into the interior 11 of the housing 1 can.
  • the jacket 2 of the housing 1 is 46 with its end face pressure-tightly connected to the lid 5, which are preferably the same Outline has like the casing 2.

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  • 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)
EP03016283A 2002-07-24 2003-07-18 Accumulateur pour un liquide Withdrawn EP1384899A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10233481 2002-07-24
DE10233481A DE10233481A1 (de) 2002-07-24 2002-07-24 Speicher für ein flüssiges Medium

Publications (2)

Publication Number Publication Date
EP1384899A2 true EP1384899A2 (fr) 2004-01-28
EP1384899A3 EP1384899A3 (fr) 2005-11-02

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EP03016283A Withdrawn EP1384899A3 (fr) 2002-07-24 2003-07-18 Accumulateur pour un liquide

Country Status (3)

Country Link
US (1) US6923223B2 (fr)
EP (1) EP1384899A3 (fr)
DE (1) DE10233481A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004004341A1 (de) * 2004-01-29 2005-08-18 Hydac Technology Gmbh Druckspeicher, insbesondere Pulsationsdämpfer
US20130167962A1 (en) * 2011-12-28 2013-07-04 Siemens Aktiengesellschaft Pressure compensator for a subsea device
EP2773874A1 (fr) * 2011-11-05 2014-09-10 Hydac Technology GmbH Accumulateur hydraulique réalisé sous la forme d'un accumulateur à soufflet

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DE10347884B3 (de) * 2003-10-10 2005-06-02 Reflex Winkelmann Gmbh & Co. Kg Gefäß für ein Leitungsnetz
US7208748B2 (en) * 2004-07-21 2007-04-24 Still River Systems, Inc. Programmable particle scatterer for radiation therapy beam formation
US7855024B2 (en) * 2006-12-27 2010-12-21 Proton Energy Systems, Inc. Compartmentalized storage tank for electrochemical cell system
NL2001674C2 (nl) * 2008-06-12 2009-12-15 Henri Peteri Beheer Bv Warmwatertoestel en werkwijze voor het toevoeren van warm water.
US8438845B2 (en) * 2008-08-26 2013-05-14 Limo-Reid, Inc. Hoseless hydraulic system
JP2013522566A (ja) * 2010-03-19 2013-06-13 スリーエム イノベイティブ プロパティズ カンパニー 圧力レリーフ装置を伴うハイドロニューマチック導管
US10168105B2 (en) * 2010-05-04 2019-01-01 Basf Se Device and method for storing heat
DE102013011115A1 (de) * 2013-07-03 2015-01-08 Hydac Technology Gmbh Vorrichtung zum Einstellen eines Mediendruckes gegenüber einem Umgebungsdruck
DE102014106404A1 (de) * 2014-05-07 2015-11-12 Khs Gmbh Füllvorrichtung
US10023454B2 (en) * 2016-06-09 2018-07-17 Spacepharma SA Multichannel liquid delivery system

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GB892019A (en) * 1957-07-11 1962-03-21 Mercier Jean Pressure vessel unit
JPS6415501A (en) * 1987-07-09 1989-01-19 Nippon Denso Co Accumulator
EP0961883A1 (fr) * 1997-02-19 1999-12-08 Continental Teves AG & Co. oHG Accumulateur de pression
EP0980981A1 (fr) * 1998-08-17 2000-02-23 Continental Teves AG & Co. oHG Accumulateur de pression à fluide
DE19852628A1 (de) * 1998-11-14 2000-05-25 Integral Accumulator Kg Hydrospeicher mit einem Metallfaltenbalg als Trennwand
WO2000073663A1 (fr) * 1999-05-29 2000-12-07 Hydac Technology Gmbh Accumulateur de pression hydropneumatique

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US2411315A (en) * 1944-10-27 1946-11-19 Electrol Inc Metal bellows accumulator
GB892019A (en) * 1957-07-11 1962-03-21 Mercier Jean Pressure vessel unit
JPS6415501A (en) * 1987-07-09 1989-01-19 Nippon Denso Co Accumulator
EP0961883A1 (fr) * 1997-02-19 1999-12-08 Continental Teves AG & Co. oHG Accumulateur de pression
EP0980981A1 (fr) * 1998-08-17 2000-02-23 Continental Teves AG & Co. oHG Accumulateur de pression à fluide
DE19852628A1 (de) * 1998-11-14 2000-05-25 Integral Accumulator Kg Hydrospeicher mit einem Metallfaltenbalg als Trennwand
WO2000073663A1 (fr) * 1999-05-29 2000-12-07 Hydac Technology Gmbh Accumulateur de pression hydropneumatique

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PATENT ABSTRACTS OF JAPAN Bd. 013, Nr. 189 (M-821), 8. Mai 1989 (1989-05-08) & JP 01 015501 A (NIPPON DENSO CO LTD), 19. Januar 1989 (1989-01-19) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004004341A1 (de) * 2004-01-29 2005-08-18 Hydac Technology Gmbh Druckspeicher, insbesondere Pulsationsdämpfer
US7857006B2 (en) 2004-01-29 2010-12-28 Hydac Technology Gmbh Pressure accumulator, especially pulsation damper
EP2773874A1 (fr) * 2011-11-05 2014-09-10 Hydac Technology GmbH Accumulateur hydraulique réalisé sous la forme d'un accumulateur à soufflet
EP2773874B1 (fr) * 2011-11-05 2018-12-12 Hydac Technology GmbH Accumulateur hydraulique réalisé sous la forme d'un accumulateur à soufflet
EP3453891A1 (fr) * 2011-11-05 2019-03-13 Hydac Technology GmbH Accumulateur hydraulique réalisé sous la forme d'un accumulateur à soufflet
US20130167962A1 (en) * 2011-12-28 2013-07-04 Siemens Aktiengesellschaft Pressure compensator for a subsea device
US9038433B2 (en) * 2011-12-28 2015-05-26 Siemens Aktiengesellschaft Pressure compensator for a subsea device

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Publication number Publication date
US6923223B2 (en) 2005-08-02
US20040154694A1 (en) 2004-08-12
EP1384899A3 (fr) 2005-11-02
DE10233481A1 (de) 2004-02-12

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