EP0376058A1 - Accumulateur - Google Patents

Accumulateur Download PDF

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Publication number
EP0376058A1
EP0376058A1 EP89123000A EP89123000A EP0376058A1 EP 0376058 A1 EP0376058 A1 EP 0376058A1 EP 89123000 A EP89123000 A EP 89123000A EP 89123000 A EP89123000 A EP 89123000A EP 0376058 A1 EP0376058 A1 EP 0376058A1
Authority
EP
European Patent Office
Prior art keywords
layer
energy store
store according
membrane
fibers
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Withdrawn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
EP89123000A
Other languages
German (de)
English (en)
Inventor
Volker Dr. Rees
Ferdinand Dr. Lutz
Bernhard Dr. Thies
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.)
ABB AG Germany
ABB AB
Original Assignee
Asea Brown Boveri AG Germany
Asea Brown Boveri AB
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 Asea Brown Boveri AG Germany, Asea Brown Boveri AB filed Critical Asea Brown Boveri AG Germany
Publication of EP0376058A1 publication Critical patent/EP0376058A1/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Withdrawn legal-status Critical Current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
    • 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
    • F15B2201/21—Accumulator cushioning means using springs
    • 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

Definitions

  • the invention relates to an energy store with a pressure vessel, which is separated from a flexible membrane into two subspaces, in particular a hydraulic accumulator, the first subspace of which contains a liquid, in particular oil, as working fluid and the second subspace of which houses at least one mechanical spring for energy storage.
  • the flexible membrane is exposed to large pressure differences and has a high mechanical strength. It must also be designed for a large number of movement games.
  • plastic membranes that are generally used have the disadvantage of not being absolutely tight under all circumstances.
  • a Mixing of the media to be separated occurs. This process is due in particular to diffusion processes.
  • the media exchange causes, among other things, that the stored energy decreases more and more.
  • the object of the invention is to make the membrane absolutely tight.
  • a multiple membrane in such a way that it is constructed from two layers, one of which is designed as a force-absorbing layer and the second as a sealing layer.
  • the sealing layer is expediently made of a metal, for example a metal foil or a thin metal plate. Stretch folds or waves are preferably stamped into it.
  • the layers of the membranes can be carried out separately from one another and simply lie on top of one another; but they can also be inseparably connected to one another in a so-called composite membrane.
  • the force-absorbing layer is preferably formed from an elastomer which contains fibers that absorb forces.
  • the fibers in particular glass fibers, are guided around tie rods that are firmly fixed in the layer.
  • the latter can e.g. be mechanically firmly anchored at the clamping point (flange point).
  • the fibers can be guided around metal plates embedded in the layer (supporting elements for the mechanical springs).
  • An additional spring containing a compressible fluid for example gas, can optionally be connected in parallel or in series to the mechanical spring used for energy storage.
  • a dense metal membrane layer 2 is assigned to the relatively flat, flexible and force-absorbing membrane layer 1, usually an elastomer.
  • the latter for example an aluminum or stainless steel foil, has concentrically applied expansion folds in the form of wave crests 3 and wave troughs 4 protruding from the foil plane.
  • the glass fibers 5 embedded for stability can be seen in the membrane layer 1, which in rosette form are evenly circular in shape Membrane layer 1 are arranged distributed.
  • tie rods 1 a are uniformly used, around which the glass fibers 5 are looped.
  • the tie rods can be fixed in the flange 10, 11.
  • FIG. 4 shows a pressure vessel 6 which is divided into two spaces 7 and 8 by the multiple membrane, namely the membrane layer 1 and the metal membrane layer 2.
  • the closed space 7 there is at least one storage element, in the form of a mechanical compression spring 9.
  • a working medium is filled into the space 8 under pressure, the multiple membrane deviating towards the space 7 in the direction of the arrow (FIG. 4) and the storage element there - here the spring 9 - pressurizes.
  • the working medium e.g. Oil is displaced in the room 8 by relaxing the spring 9.
  • the spring 9 can also be assigned a gas spring in parallel or series connection.
  • Figure 5 shows the pressure vessel with an almost relaxed pressure accumulator.
  • the membrane layers 1, 2 dividing the spaces lie one on top of the other, the metal membrane layer 2 facing the working space 8 filled with oil.
  • the membrane layers can be tightly welded to one another at the circumferential mounting point and they are pressed tightly between the flanges 10, 11 of the pressure vessel.
  • the metal plate 1b which serves as a support element and is worked into the center of the pressure-absorbing membrane layer 1, can likewise serve the glass fibers 5 as tie rods which are guided around the metal plate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Diaphragms And Bellows (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
EP89123000A 1988-12-28 1989-12-13 Accumulateur Withdrawn EP0376058A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3844054 1988-12-28
DE19883844054 DE3844054A1 (de) 1988-12-28 1988-12-28 Energiespeicher

Publications (1)

Publication Number Publication Date
EP0376058A1 true EP0376058A1 (fr) 1990-07-04

Family

ID=6370363

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89123000A Withdrawn EP0376058A1 (fr) 1988-12-28 1989-12-13 Accumulateur

Country Status (2)

Country Link
EP (1) EP0376058A1 (fr)
DE (1) DE3844054A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0482916A1 (fr) * 1990-10-23 1992-04-29 Honda Giken Kogyo Kabushiki Kaisha Accumulateur
FR2685740A1 (fr) * 1991-12-27 1993-07-02 Tokai Rubber Ind Ltd Element de separation souple pour accumulateur hydraulique comprenant une couche d'arret du gaz en copolymere d'ethylene-alcool vinylique et une couche elastique en resine polyamide.
WO2004013495A1 (fr) * 2002-07-31 2004-02-12 Carl Freudenberg Kg Accumulateur hydropneumatique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE517263T1 (de) 2009-03-03 2011-08-15 Freudenberg Carl Kg Hydrospeicher mit in reihe geschalteten speicherunterräumen

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1202889A (fr) * 1957-03-02 1960-01-14 Dunlop Rubber Co Diaphragme élastique
GB829438A (en) * 1957-01-09 1960-03-02 Moulton Development Ltd Improvements in fluid pressure systems and apparatus
FR1317420A (fr) * 1962-02-01 1963-02-08 Parkinson Cowan Appliances Ltd Membrane perfectionnée pour dispositif de mesure et de commande à fluides
DE1186285B (de) * 1959-12-09 1965-01-28 Olaer Patent Co Druckmittelbehaelter mit starrem Gehaeuse und Trennwand
DE1600632A1 (de) * 1967-05-09 1970-05-06 Teves Gmbh Alfred In Verbindung mit sogenannten vollhydraulischen Bremssystemen zu verwendender Speicher
DE2023637A1 (de) * 1970-05-14 1971-11-25 Swf Druckspeicher für eine Heizölversorgungsanlage
DE3012079A1 (de) * 1980-03-28 1981-10-08 Wabco Fahrzeugbremsen Gmbh, 3000 Hannover Druckbehaelter
DE3219530A1 (de) * 1982-05-25 1983-12-01 Alfred Teves Gmbh, 6000 Frankfurt Membran fuer druckspeicher
EP0100221A2 (fr) * 1982-07-26 1984-02-08 Robertshaw Controls Company Construction sensible à la pression de fluide et son procédé de fabrication

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB829438A (en) * 1957-01-09 1960-03-02 Moulton Development Ltd Improvements in fluid pressure systems and apparatus
FR1202889A (fr) * 1957-03-02 1960-01-14 Dunlop Rubber Co Diaphragme élastique
DE1186285B (de) * 1959-12-09 1965-01-28 Olaer Patent Co Druckmittelbehaelter mit starrem Gehaeuse und Trennwand
FR1317420A (fr) * 1962-02-01 1963-02-08 Parkinson Cowan Appliances Ltd Membrane perfectionnée pour dispositif de mesure et de commande à fluides
DE1600632A1 (de) * 1967-05-09 1970-05-06 Teves Gmbh Alfred In Verbindung mit sogenannten vollhydraulischen Bremssystemen zu verwendender Speicher
DE2023637A1 (de) * 1970-05-14 1971-11-25 Swf Druckspeicher für eine Heizölversorgungsanlage
DE3012079A1 (de) * 1980-03-28 1981-10-08 Wabco Fahrzeugbremsen Gmbh, 3000 Hannover Druckbehaelter
DE3219530A1 (de) * 1982-05-25 1983-12-01 Alfred Teves Gmbh, 6000 Frankfurt Membran fuer druckspeicher
EP0100221A2 (fr) * 1982-07-26 1984-02-08 Robertshaw Controls Company Construction sensible à la pression de fluide et son procédé de fabrication

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0482916A1 (fr) * 1990-10-23 1992-04-29 Honda Giken Kogyo Kabushiki Kaisha Accumulateur
US5215124A (en) * 1990-10-23 1993-06-01 Honda Giken Kogyo Kabushiki Kaisha Accumulator
FR2685740A1 (fr) * 1991-12-27 1993-07-02 Tokai Rubber Ind Ltd Element de separation souple pour accumulateur hydraulique comprenant une couche d'arret du gaz en copolymere d'ethylene-alcool vinylique et une couche elastique en resine polyamide.
WO2004013495A1 (fr) * 2002-07-31 2004-02-12 Carl Freudenberg Kg Accumulateur hydropneumatique

Also Published As

Publication number Publication date
DE3844054A1 (de) 1990-07-12

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Effective date: 19910105