EP0376058A1 - Accumulateur - Google Patents
Accumulateur Download PDFInfo
- 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- Withdrawn
Links
Images
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)
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)
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)
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)
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 |
-
1988
- 1988-12-28 DE DE19883844054 patent/DE3844054A1/de not_active Withdrawn
-
1989
- 1989-12-13 EP EP89123000A patent/EP0376058A1/fr not_active Withdrawn
Patent Citations (9)
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)
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR IT |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19910105 |