EP1735537B1 - Hydraulic accumulator - Google Patents
Hydraulic accumulator Download PDFInfo
- Publication number
- EP1735537B1 EP1735537B1 EP05715853A EP05715853A EP1735537B1 EP 1735537 B1 EP1735537 B1 EP 1735537B1 EP 05715853 A EP05715853 A EP 05715853A EP 05715853 A EP05715853 A EP 05715853A EP 1735537 B1 EP1735537 B1 EP 1735537B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipe
- plate
- store according
- forming
- hydro
- 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.)
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Links
- 239000011324 bead Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 17
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 13
- 230000007704 transition Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 239000000945 filler Substances 0.000 claims 1
- 238000003860 storage Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000641 cold extrusion Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
- F15B1/106—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means characterised by the way housing components are assembled
-
- 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
- F15B1/24—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with 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
- F15B2201/20—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
- F15B2201/31—Accumulator separating means having rigid separating means, e.g. pistons
- F15B2201/312—Sealings therefor, e.g. piston rings
-
- 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
Definitions
- the invention relates to a hydraulic accumulator with a storage housing in the form of a tube according to the feature configuration of the preamble of claim 1.
- hydraulic accumulators A variety of different hydraulic accumulators is commercially available and used in hydro plants for various applications. They are used inter alia for energy storage, emergency operation, to balance forces, for damping of pressure surges, for pulsation damping, for vehicle suspension, recovery of braking energy and the like. Due to the variety of applications, which have a need for hydraulic accumulators in large quantities result, a construction method should be sought, which allows a simple and cost-effective production of hydraulic accumulators with safe operation.
- a generic hydraulic accumulator with a storage housing in the form of a tube in which a separable in the axial direction separating element, preferably a separating piston, on both sides adjacent pressure chambers from each other, and wherein the tube is closed at at least one end by a cover-like closure member, the one contact surface for the connection with the relevant Having end edge of the tube, wherein the contact surface has a surface part in the form of an axially projecting into the interior of the tube ring surface for positive support of the pipe wall against radial forces and an extension in the radial direction having annular surface for positive .Abstützung the pipe wall against axial forces.
- a comparable to this generic solution is also by the DE 71 13 311 U known.
- the invention is therefore an object of the invention to provide a hydraulic accumulator available, while maintaining the advantages of the prior art, such as low material costs in lightweight construction with correspondingly low production costs and manufacturing technology easy to manufacture, to further improve that this is a particularly safe, long-lasting operating characteristics.
- This object is achieved by a hydraulic accumulator with the features of claim 1 in its entirety.
- the closing part is formed by a plate having a deformation in the form of an annular bead which projects into the interior of the tube and provided on the radially outer edge of its projecting convexity with the annular surface forming the contact surface is, such a wave-shaped configuration is achieved at least for a portion of the plate, which is simple and efficient to produce, for example, by cold working, that there is a very favorable course of power flow in the introduction of forces between the pipe wall and plate at the respective junction act, so that the inventive solution is characterized in particular by a very safe performance.
- a particularly favorable material utilization results in embodiments in which the annular bead of the plate is bulged by cold extrusion from the plane of the plate. While in this case the material thickness of the plate is slightly reduced due to the stretch in the bulge, the material thickness of the plate remains unchanged in adjacent to the bulge on both flat areas, so that advantageously the full thickness of material in areas of the plate is available, in which the plate has through holes.
- This may be, for example, a connection opening located in the center of the plate as access to the adjacent pressure space or around fastening holes, which are provided in lateral extensions of the plate, forming the flange parts.
- the hydraulic accumulator according to the invention is further provided to arrange a formation of a curved, protruding dome in the center of the end portion of the storage housing, which leads to a stiffening of the end part.
- the risk of dimensional stability by stretching and tension is thereby reduced, so that the conditions for a lightweight construction of the hydraulic accumulator are given, which leads to the desired reduction in material costs and thus the overall manufacturing costs.
- a cylindrical metal tube forming the main part of the accumulator housing is designated by 1.
- the tube 1 is closed by an integral with the tube shell end portion 3. This is formed by hot forming of the relevant end portion of the tube 1, for example by a known as rolling forming technology.
- a dekkelmaschines final part which is a plate 5 in the present example.
- a piston 9 with respect to a housing longitudinal axis 7 is displaceable, which is sealed at its periphery by sealing elements 11 relative to the housing inner wall.
- the piston 9 forms a movable separating element between both sides adjacent pressure chambers 13 and 15.
- the hydraulic accumulator As in the embodiment shown, is designed as a hydropneumatic storage and the pressure chamber 13 is provided for receiving a pressurized gas filling, the piston 9 has a concentric to the axis 7, inner trough 17.
- An end portion 3 of the housing centrally located compressed gas connection with an opening 18 which is closed by means of a closure member 19, allows the filling of the pressure chamber 13 with a corresponding pressurized gas, namely nitrogen gas for hydropneumatic applications.
- a connection opening 21st For the fluid connection to the pressure chamber 15 is in the plate 5 concentric with the longitudinal axis 7, a connection opening 21st
- the material thickness of the plate 5 is substantially greater than the wall thickness of the tube 1 and is in the illustrated embodiment more than twice this wall thickness.
- the plate 5 is deformed so that an area bulged out of the plane of the plate forms an annular bead 23 which is concentric with the longitudinal axis 7 and whose part projecting from the plane of the plate forms a rounded convexity 25.
- the annular bead 23 forming bulge results in the plate 5 surrounded by the annular bead 23, inner planar region 27 and a radially outside of the annular bead 23 located flat area 29.
- the bulge is formed so that the radius of curvature of the bulge at the transitions to the planar regions 27 and 29 is greater in each case than in the top of the annular bead 23 forming region.
- the material thickness of the plate 5 remains unchanged in the annular bead 23 on both sides adjacent flat regions 27 and 29, while the material stretching only within half of the annular bead 23 results in a small decrease in material thickness.
- the concentric to the longitudinal axis 7 connecting opening 21 is thus located in a region in which the material thickness is not diminished by the deformation of the plate, which proves advantageous for the attachment of connection fittings.
- the plate 5 has extensions 31 which form parts of a flange for the attachment of the hydraulic accumulator, then the fact that the extensions 31 have them is level Area 29, the material thickness is unchanged, also of great advantage, because so at the mounting holes 33 of the flange of the full material cross section is available.
- FIG. 2 how most obvious Fig. 2 can be removed, the connection between the end edge of the tube 1 and the plate 5 at a contact surface of the plate 5, which is located on the radially outer edge 35 of the convexity 25 of the annular bead 23, so that the summit 37 into the interior of the tube 1 into it projects.
- the contact surface on the annular bead 23 two mutually approximately at right angles extending surface parts, namely an axially into the interior of the tube 1 projecting annular surface 39 and an extension in the radial direction annular surface 41.
- Fig. 2 shows at the left in Fig. Connection point between the tube 1 and plate 5, a weld joint 43, which is formed as a preferred attachment to the transition region of the annular surfaces 39 and 41, which latter therefore on the in Fig. 2 left-side joint are not visible.
- the inner wall of the tube 1 at the Endrand Scheme a wall thickness of the tube 1 to the end edge out in some areas reducing chamfer 45. This creates space for the projecting into the interior of the tube 1 edge portion at the summit 37 of the annular bead 23, over the summit of the pipe 1 is so to speak, with its end edge exposed.
- Fig. 1 left conclusion of the storage enclosure formed by an end portion 3, which is formed as an integral part of the tube 1 from the wall by hot forming technique, a technique such as, for example, under the name "Rolling" is known.
- the end part 3 is shaped in such a way that a slightly protruding dome 4 with curved flanks 6 is formed in the central region surrounding the longitudinal axis 7.
- Fig. 1 can be seen, form the flanks 6 on the outside of a concavity, to which a concentric to the longitudinal axis 7, substantially flat central part connects.
- a filling opening 18 for filling the pressure chamber 13 with compressed gas, wherein at the opening 18, a closure body 19 is provided.
- the curved shape of the dome 4 acts as a stiffening element on the end part 3, so that dimensional stability of the storage housing is achieved despite light construction.
Landscapes
- 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)
- Lubricants (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
Die Erfindung bezieht sich auf einen Hydrospeicher mit einem Speichergehäuse in Form eines Rohres gemäß der Merkmalsausgestaltung des Oberbegriffes des Patentanspruches 1.The invention relates to a hydraulic accumulator with a storage housing in the form of a tube according to the feature configuration of the preamble of claim 1.
Eine Vielzahl an verschiedenen Hydrospeichern ist handelsüblich und findet bei Hydroanlagen für verschiedene Anwendungszwecke Verwendung. Sie dienen unter anderem zur Energiespeicherung, Notbetätigung, zum Kräfteausgleich, zur Dämpfung von Druckstößen, zur Pulsationsdämpfung, zur Fahrzeugfederung, Zurückgewinnung von Bremsenergie und dergleichen. Aufgrund der vielfältigen Einsatzmöglichkeiten, die einen Bedarf an Hydrospeichern in großen Stückzahlen zur Folge haben, ist eine Bauweise anzustreben, die eine einfache und kostengünstige Fertigung von Hydrospeichern mit sicherem Betriebsverhalten ermöglicht.A variety of different hydraulic accumulators is commercially available and used in hydro plants for various applications. They are used inter alia for energy storage, emergency operation, to balance forces, for damping of pressure surges, for pulsation damping, for vehicle suspension, recovery of braking energy and the like. Due to the variety of applications, which have a need for hydraulic accumulators in large quantities result, a construction method should be sought, which allows a simple and cost-effective production of hydraulic accumulators with safe operation.
Durch die
Eine dahingehend vergleichbare gattungsgemäße Lösung ist auch durch das
A comparable to this generic solution is also by the
Dadurch, dass bei den bekannten Lösungen am deckelartigen Abschlußteil Ringflächen in der Weise ausgebildet sind, dass der anliegende Endrand des das Speichergehäuse bildenden Rohres sowohl gegen Radialkräfte, die an der Verbindungsstelle mit dem deckelartigen Abschlußteil wirksam sind, als auch gegen Axialkräfte jeweils formschlüssig abgestützt ist, ist ein besonders formstabiler Abschluß des Rohrendes des Speichergehäuses mit geringem Materialaufwand und mit entsprechend geringem Fertigungsaufwand möglich. Was das Einleiten von Kräften im Betrieb des Hydrospeichers anbelangt, die zwischen Rohrwand und Platte an der Verbindungsstelle einwirken, lassen die bekannten Lösungen im Hinblick auf eine lange Standzeit jedoch noch Wünsche offen.Characterized in that in the known solutions on the cover-like closure part annular surfaces are formed in such a way that the adjacent end edge of the storage housing forming tube is supported both against radial forces which are effective at the junction with the cover-like closure member, as well as against axial forces in each case form-fitting is a particularly dimensionally stable completion of the pipe end of the storage enclosure with low material costs and with correspondingly low production costs possible. As regards the introduction of forces in the operation of the hydraulic accumulator, which act between the pipe wall and the plate at the junction, the known solutions, however, still leave something to be desired with regard to a long service life.
Der Erfindung liegt demgemäß die Aufgabe zugrunde, einen Hydrospeicher zur Verfügung zu stellen, der unter Beibehalten der Vorteile im Stand der Technik, wie geringer Materialaufwand bei leichtgewichtigem Aufbau mit entsprechend niedrigen Herstellungskosten und fertigungstechnisch einfach herstellbar, dahingehend weiter zu verbessern, dass dieser sich durch ein besonders sicheres, langandauerndes Betriebsverhalten auszeichnet. Eine dahingehende Aufgabe löst ein Hydrospeicher mit den Merkmalen des Patentanspruches 1 in seiner Gesamtheit.The invention is therefore an object of the invention to provide a hydraulic accumulator available, while maintaining the advantages of the prior art, such as low material costs in lightweight construction with correspondingly low production costs and manufacturing technology easy to manufacture, to further improve that this is a particularly safe, long-lasting operating characteristics. This object is achieved by a hydraulic accumulator with the features of claim 1 in its entirety.
Dadurch, dass gemäß dem kennzeichnenden Teil des Patentanspruches 1 das Abschlußteil durch eine Platte gebildet ist, die eine Verformung in Form eines Ringwulstes aufweist, der ins Innere des Rohres vorspringt und an der radial außen liegenden Flanke seiner vorspringenden Konvexität mit den die Anlagefläche bildenden Ringflächen versehen ist, ist derart eine wellenförmige Gestaltung zumindest für einen Teilbereich der Platte erreicht, die beispielsweise durch Kaltverformung einfach und rationell herstellbar ist, dass es zu einem sehr günstigen Verlauf des Kraftflusses bei der Einleitung von Kräften kommt, die zwischen Rohrwand und Platte an der jeweiligen Verbindungsstelle einwirken, so dass sich die erfindungsgemäße Lösung insbesondere durch ein sehr sicheres Betriebsverhalten auszeichnet.Characterized in that according to the characterizing part of claim 1, the closing part is formed by a plate having a deformation in the form of an annular bead which projects into the interior of the tube and provided on the radially outer edge of its projecting convexity with the annular surface forming the contact surface is, such a wave-shaped configuration is achieved at least for a portion of the plate, which is simple and efficient to produce, for example, by cold working, that there is a very favorable course of power flow in the introduction of forces between the pipe wall and plate at the respective junction act, so that the inventive solution is characterized in particular by a very safe performance.
Insbesondere ergeben sich dadurch auch günstige Verhältnisse für eine Schweißnahtanbindung der Rohrwand an die radial außen liegende Flanke des Ringwulstes.In particular, this results in favorable conditions for a weld seam connection of the pipe wall to the radially outer flank of the annular bead.
Eine besonders günstige Materialausnützung ergibt sich bei Ausführungsbeispielen, bei denen der Ringwulst der Platte durch Kaltfließpressen aus der Ebene der Platte ausgewölbt ist. Während hierbei die Materialstärke der Platte aufgrund der Streckung im Wölbungsbereich geringfügig vermindert wird, verbleibt die Materialstärke der Platte in an die Auswölbung beidseits angrenzenden ebenen Bereichen unverändert, so dass in vorteilhafter Weise die volle Materialstärke in Bereichen der Platte zur Verfügung steht, in denen die Platte durchgehende Bohrungen aufweist. Hierbei kann es sich beispielsweise um eine im Zentrum der Platte gelegene Anschlußöffnung als Zugang zum angrenzenden Druckraum handeln oder um Befestigungslöcher, die in seitlichen Erweiterungen der Platte vorgesehen sind, die Flanschteile bilden.A particularly favorable material utilization results in embodiments in which the annular bead of the plate is bulged by cold extrusion from the plane of the plate. While in this case the material thickness of the plate is slightly reduced due to the stretch in the bulge, the material thickness of the plate remains unchanged in adjacent to the bulge on both flat areas, so that advantageously the full thickness of material in areas of the plate is available, in which the plate has through holes. This may be, for example, a connection opening located in the center of the plate as access to the adjacent pressure space or around fastening holes, which are provided in lateral extensions of the plate, forming the flange parts.
Bei einer bevorzugten Ausführungsform des erfindungsgemäßen Hydrospeichers ist ferner vorgesehen, eine Ausformung eines geschwungenen, vorstehenden Domes im Zentrum des Endteiles des Speichergehäuses anzuordnen, was insoweit zu einer Versteifung des Endteiles führt. Die Gefährdung der Formstabilität durch Dehnung und Spannung wird dadurch verringert, so dass die Voraussetzungen für einen Leichtbau des Hydrospeichers gegeben sind, was zu der erstrebten Verringerung der Materialkosten und damit der Gesamt-Fertigungskosten führt.In a preferred embodiment of the hydraulic accumulator according to the invention is further provided to arrange a formation of a curved, protruding dome in the center of the end portion of the storage housing, which leads to a stiffening of the end part. The risk of dimensional stability by stretching and tension is thereby reduced, so that the conditions for a lightweight construction of the hydraulic accumulator are given, which leads to the desired reduction in material costs and thus the overall manufacturing costs.
Nachstehend ist die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispieles im einzelnen erläutert. Es zeigen:
- ●
Fig. 1 einen Längsschnitt des Ausführungsbeispieles des erfindungsgemäßen Hydrospeichers in Form eines Kolbenspeichers; - ●
Fig. 2 einen gegenüberFig. 1 in größerem Maßstab gezeichneten Teillängsschnitt nur eines Endbereiches des Ausführungsbeispieles, in welchem das das Speichergehäuse bildende Rohr durch ein deckelartiges Abschlußteil abgeschlossen ist, und - ●
Fig. 3 eine im Maßstab vonFig. 1 gezeichnetes Endansicht des Ausführungsbeispieles, gesehen auf das deckelartige Abschlußteil.
- ●
Fig. 1 a longitudinal section of the embodiment of the hydraulic accumulator according to the invention in the form of a piston accumulator; - ●
Fig. 2 one oppositeFig. 1 drawn on a larger scale partial longitudinal section only one end portion of the embodiment in which the storage housing forming tube is completed by a lid-like closure member, and - ●
Fig. 3 a scale ofFig. 1 drawn end view of the embodiment, as seen on the lid-like end part.
In
In dem so abgeschlossenen Speichergehäuse ist ein Kolben 9 bezüglich einer Gehäuselängsachse 7 verschiebbar, der an seinem Umfang durch Dichtelemente 11 gegenüber der Gehäuseinnenwand abgedichtet ist. Somit bildet der Kolben 9 ein bewegbares Trennelement zwischen beidseits angrenzenden Druckräumen 13 und 15. Um das Volumen des Druckraumes 13 möglichst groß zu gestalten, was von Vorteil ist, wenn der Hydrospeicher, wie beim gezeigten Ausführungsbeispiel, als hydropneumatischer Speicher ausgelegt ist und der Druckraum 13 für die Aufnahme einer Druckgasfüllung vorgesehen ist, weist der Kolben 9 eine zur Achse 7 konzentrische, innere Mulde 17 auf. Ein am Endteil 3 des Gehäuses zentral gelegener Druckgasanschluß mit einer Öffnung 18, die mittels eines Verschlußteiles 19 abgeschlossen ist, ermöglicht die Befüllung des Druckraumes 13 mit einem entsprechenden Druckgas, namentlich Stickstoffgas für hydropneumatische Anwendungen. Für die Fluidverbindung zum Druckraum 15 befindet sich in der Platte 5 konzentrisch zur Längsachse 7 eine Anschlußöffnung 21.In the thus completed storage housing, a
Wie am deutlichsten aus
Bei in dieser Weise durchgeführter Auswölbung der Platte 5, vorzugsweise durch Kaltumformen, verbleibt die Materialstärke der Platte 5 in den an den Ringwulst 23 beidseits jeweils angrenzenden ebenen Bereichen 27 und 29 unverändert, während sich durch die Materialstreckung lediglich innerhalb halb des Ringwulstes 23 eine geringe Abnahme der Materialstärke ergibt.
Die zur Längsachse 7 konzentrische Anschlußöffnung 21 befindet sich somit in einem Bereich, in dem die Materialstärke durch die Verformung der Platte nicht geschmälert ist, was sich für die Anbringung von Anschlußarmaturen vorteilhaft erweist. Wenn, wie beim gezeigten Ausführungsbeispiel, in dem radial außerhalb des Ringwulstes 23 gelegenen ebenen Bereich 29 die Platte 5 Erweiterungen 31 aufweist, die Teile eines Flansches für die Befestigung des Hydrospeichers bilden, dann ist der Umstand, dass in dem die Erweiterungen 31 aufweisenden, ebenen Bereich 29 die Materialstärke unverändert ist, ebenfalls von großem Vorteil, weil so an den Befestigungslöchern 33 der Flanschteile der volle Materialquerschnitt zur Verfügung steht.When carried out in this way bulge of the
The concentric to the
Wie am deutlichsten aus
Wie ebenfalls am deutlichsten aus
Wie bereits erwähnt, ist der in
Die geschwungene Formgebung des Domes 4 wirkt als Versteifungselement am Endteil 3, so dass Formstabilität des Speichergehäuses trotz leichter Bauweise erreicht wird.The curved shape of the
Claims (12)
- Hydro store with a store housing in the form of a pipe (1), in which a separating element moveable in its axial direction (7), preferably a separating piston (19) separates pressure chambers (13, 15) bordering onto the same on both sides from each other, and in which the pipe (1) is closed off on at least one end by a cover-like closure part (5) comprising an abutment surface for the connection with the relevant end edge of the pipe (1), whereby the abutment surface comprises a spatial part in the form of an annular surface (39) projecting axially into the interior of the pipe (1) for a form closure support of the pipe wall against radial forces as well as an annular surface (41) extending in a radial direction for a form closure support of the pipe wall against axial forces, characterised in that the closure part is formed by a plate (5) comprising a deformation in the form of an annular bead (23) projecting into the interior of the pipe (1), being equipped with the annular surfaces (39, 41) forming the abutment surface at its radial outer flank (35) of its projecting convexity (25).
- Hydro store according to Claim 1, characterised in that the pipe (1) is closed off at its one end by an end part (3) formed in a single piece with the wall of the pipe (1) by means of heat deformation, and in that adjacent to the longitudinal axis (7) of the pipe (1) at the said end part (3) a concentric area for forming an arced dome (4) is formed in an area concentric to the same.
- Hydro store according to Claim 1 or 2, characterised in that the wall of the pipe (1) comprises a handle (45) in the area adjacent to the end edge on the inside, in that the wall thickness of the pipe (1) is narrowed at least in that area that surrounds the peak (37) of the annular bead (23).
- Hydro store according to one of the Claims 1 to 3, characterised in that the annular bead (23) is formed on the plate (5) forming the closure part is realised by means of cold deformation.
- Hydro store according to one of the Claims 1 to 4, characterised in that the plate (5) forming the closure part is connected with the pipe (1) via a weld seam (43) formed on the abutment surface.
- Hydro store according to one of the Claims 1 to 5, characterised in that the plate (5) comprises radially projecting expansions (31) at least in part across the circumference of the pipe (1), the same forming at least parts of a fitting flange with fitting holes (33).
- Hydro store according to Claim 6, characterised in that expansions (31) for forming at least two, preferably three flange parts are located at regular angled distances from each other.
- Hydro store according to one of the Claims 4 to 7, characterised in that the annular bead (23) of the plate (5) is produced from the surface of the plate (5) by means of cold flow compression in such a way the material thickness of the plate (5) is greater in the flat areas (27, 29) adjacent to the annular bead (23) on both sides of the same than in the arced area.
- Hydro store according to Claim 8, characterised in that a connecting passage (21) is envisaged in the centre of the plate (5) comprising the full material thickness.
- Hydro store according to Claim 8 or 9, characterised in that the radius of curvature of the arcing is greater at the transition to the flat areas (27, 29) of the plate (5) than in the area forming the peak (37) of the annular bead (23).
- Hydro store according to one of the Claims 1 to 10, characterised in that the flanks (6) of the dome (4) projecting from the end part (3) comprise a concave form on the outside.
- Hydro store according to Claim 11, characterised in that the dome (4) comprises a filler stud (18) that is concentric to the longitudinal axis (7) of the pipe (1).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004018456A DE102004018456A1 (en) | 2004-04-16 | 2004-04-16 | hydraulic accumulator |
PCT/EP2005/002458 WO2005106255A1 (en) | 2004-04-16 | 2005-03-09 | Hydraulic accumulator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1735537A1 EP1735537A1 (en) | 2006-12-27 |
EP1735537B1 true EP1735537B1 (en) | 2008-05-14 |
Family
ID=34961382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05715853A Active EP1735537B1 (en) | 2004-04-16 | 2005-03-09 | Hydraulic accumulator |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070181199A1 (en) |
EP (1) | EP1735537B1 (en) |
AT (1) | ATE395517T1 (en) |
DE (2) | DE102004018456A1 (en) |
WO (1) | WO2005106255A1 (en) |
Families Citing this family (26)
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US8474255B2 (en) | 2008-04-09 | 2013-07-02 | Sustainx, Inc. | Forming liquid sprays in compressed-gas energy storage systems for effective heat exchange |
US8359856B2 (en) | 2008-04-09 | 2013-01-29 | Sustainx Inc. | Systems and methods for efficient pumping of high-pressure fluids for energy storage and recovery |
US20100307156A1 (en) | 2009-06-04 | 2010-12-09 | Bollinger Benjamin R | Systems and Methods for Improving Drivetrain Efficiency for Compressed Gas Energy Storage and Recovery Systems |
US8677744B2 (en) | 2008-04-09 | 2014-03-25 | SustaioX, Inc. | Fluid circulation in energy storage and recovery systems |
US8240140B2 (en) | 2008-04-09 | 2012-08-14 | Sustainx, Inc. | High-efficiency energy-conversion based on fluid expansion and compression |
US8225606B2 (en) | 2008-04-09 | 2012-07-24 | Sustainx, Inc. | Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression |
US8479505B2 (en) | 2008-04-09 | 2013-07-09 | Sustainx, Inc. | Systems and methods for reducing dead volume in compressed-gas energy storage systems |
US7958731B2 (en) | 2009-01-20 | 2011-06-14 | Sustainx, Inc. | Systems and methods for combined thermal and compressed gas energy conversion systems |
US8037678B2 (en) | 2009-09-11 | 2011-10-18 | Sustainx, Inc. | Energy storage and generation systems and methods using coupled cylinder assemblies |
US8448433B2 (en) | 2008-04-09 | 2013-05-28 | Sustainx, Inc. | Systems and methods for energy storage and recovery using gas expansion and compression |
US8250863B2 (en) | 2008-04-09 | 2012-08-28 | Sustainx, Inc. | Heat exchange with compressed gas in energy-storage systems |
US20110266810A1 (en) | 2009-11-03 | 2011-11-03 | Mcbride Troy O | Systems and methods for compressed-gas energy storage using coupled cylinder assemblies |
EP2280841A2 (en) | 2008-04-09 | 2011-02-09 | Sustainx, Inc. | Systems and methods for energy storage and recovery using compressed gas |
US7802426B2 (en) | 2008-06-09 | 2010-09-28 | Sustainx, Inc. | System and method for rapid isothermal gas expansion and compression for energy storage |
DE102008061221A1 (en) * | 2008-12-09 | 2010-06-10 | Hydac Technology Gmbh | Hydraulic accumulator, in particular bellows accumulator |
US7963110B2 (en) | 2009-03-12 | 2011-06-21 | Sustainx, Inc. | Systems and methods for improving drivetrain efficiency for compressed gas energy storage |
US8104274B2 (en) | 2009-06-04 | 2012-01-31 | Sustainx, Inc. | Increased power in compressed-gas energy storage and recovery |
US8191362B2 (en) | 2010-04-08 | 2012-06-05 | Sustainx, Inc. | Systems and methods for reducing dead volume in compressed-gas energy storage systems |
US8171728B2 (en) | 2010-04-08 | 2012-05-08 | Sustainx, Inc. | High-efficiency liquid heat exchange in compressed-gas energy storage systems |
US8234863B2 (en) | 2010-05-14 | 2012-08-07 | Sustainx, Inc. | Forming liquid sprays in compressed-gas energy storage systems for effective heat exchange |
US8495872B2 (en) | 2010-08-20 | 2013-07-30 | Sustainx, Inc. | Energy storage and recovery utilizing low-pressure thermal conditioning for heat exchange with high-pressure gas |
US8578708B2 (en) | 2010-11-30 | 2013-11-12 | Sustainx, Inc. | Fluid-flow control in energy storage and recovery systems |
WO2012158781A2 (en) | 2011-05-17 | 2012-11-22 | Sustainx, Inc. | Systems and methods for efficient two-phase heat transfer in compressed-air energy storage systems |
WO2013106115A2 (en) | 2011-10-14 | 2013-07-18 | Sustainx, Inc. | Dead-volume management in compressed-gas energy storage and recovery systems |
ITBO20120084A1 (en) * | 2012-02-22 | 2013-08-23 | Magneti Marelli Spa | HYDRAULIC SERVO OF A SERVO-CHANGE |
ITBO20120085A1 (en) * | 2012-02-22 | 2013-08-23 | Magneti Marelli Spa | HYDRAULIC SERVO OF A SERVO-CHANGE |
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DE7113311U (en) * | 1974-11-28 | Maschinenfabrik Hausherr R & Soehne Gmbh | Sealing arrangement for free pistons in hydropneumatic pressure accumulators | |
US2170890A (en) * | 1937-04-08 | 1939-08-29 | Link Belt Co | Removable accumulator |
US2703108A (en) * | 1950-12-04 | 1955-03-01 | Tommy J Mccuistion | Accumulator |
US3064686A (en) * | 1957-08-23 | 1962-11-20 | Gratzmuller Jean Louis | Hydro-pneumatic accumulators |
US3148706A (en) * | 1958-09-29 | 1964-09-15 | Mercier Jean | Pressure vessels |
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DE1295935B (en) * | 1964-07-03 | 1969-05-22 | Adam Dipl Ing | Hydraulic accumulator |
IT1018513B (en) * | 1972-07-11 | 1977-10-20 | Lowara Spa | FURTHER IMPROVEMENTS TO THE AUTOCLAVE TANKS FOR HYDRAULIC LIFTING SYSTEMS |
DE2604959C2 (en) * | 1975-02-24 | 1986-11-13 | Greer Hydraulics, Inc., Los Angeles, Calif. | Device for manufacturing a pressure storage container |
DE2911022A1 (en) * | 1979-03-21 | 1980-10-02 | Bosch Gmbh Robert | PRESSURE VESSEL |
US4295492A (en) * | 1979-11-13 | 1981-10-20 | Greer Hydraulics, Incorporated | Low cost accumulator device |
JPS58170402U (en) * | 1982-05-11 | 1983-11-14 | 株式会社ボッシュオートモーティブ システム | Accumulator |
US4678010A (en) * | 1985-02-22 | 1987-07-07 | Gene Purvis | Accumulator for airless spraying apparatus |
JP3443427B2 (en) * | 1992-03-11 | 2003-09-02 | ジヤトコ株式会社 | Accumulator for hydraulic control circuit |
DE19616428B4 (en) * | 1996-04-25 | 2005-03-10 | Bosch Gmbh Robert | Hydraulic storage for a vehicle brake system |
DE20103015U1 (en) * | 2001-02-21 | 2001-04-26 | Robert Bosch Gmbh, 70469 Stuttgart | Pressure fluid accumulator, in particular for a hydraulic brake system of a vehicle |
DE10161797C1 (en) * | 2001-12-15 | 2003-07-31 | Hydac Technology Gmbh | Piston reservoir for motor vehicle suspension has steel piston and end cap with annular sealing abutment surfaces engaging in end position |
-
2004
- 2004-04-16 DE DE102004018456A patent/DE102004018456A1/en not_active Withdrawn
-
2005
- 2005-03-09 EP EP05715853A patent/EP1735537B1/en active Active
- 2005-03-09 DE DE502005004121T patent/DE502005004121D1/en active Active
- 2005-03-09 US US10/588,821 patent/US20070181199A1/en not_active Abandoned
- 2005-03-09 WO PCT/EP2005/002458 patent/WO2005106255A1/en active IP Right Grant
- 2005-03-09 AT AT05715853T patent/ATE395517T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO2005106255A1 (en) | 2005-11-10 |
US20070181199A1 (en) | 2007-08-09 |
DE102004018456A1 (en) | 2005-11-10 |
ATE395517T1 (en) | 2008-05-15 |
EP1735537A1 (en) | 2006-12-27 |
DE502005004121D1 (en) | 2008-06-26 |
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