EP0085934A1 - Pressure accumulator - Google Patents
Pressure accumulator Download PDFInfo
- Publication number
- EP0085934A1 EP0085934A1 EP83100963A EP83100963A EP0085934A1 EP 0085934 A1 EP0085934 A1 EP 0085934A1 EP 83100963 A EP83100963 A EP 83100963A EP 83100963 A EP83100963 A EP 83100963A EP 0085934 A1 EP0085934 A1 EP 0085934A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- ring
- cover
- recess
- cover plate
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000013013 elastic material Substances 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920003051 synthetic elastomer Polymers 0.000 claims description 2
- 239000005061 synthetic rubber Substances 0.000 claims description 2
- 229920013648 Perbunan Polymers 0.000 claims 1
- 239000011521 glass Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 239000003566 sealing material Substances 0.000 claims 1
- 229920002994 synthetic fiber Polymers 0.000 claims 1
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 230000007847 structural defect Effects 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
- F15B1/24—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
- F15B2201/41—Liquid ports
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S277/00—Seal for a joint or juncture
- Y10S277/935—Seal made of a particular material
- Y10S277/944—Elastomer or plastic
Definitions
- the cover has a recess on its circumferential surface projecting into the cylinder, in which a ring seal in the form of an O-ring made of elastic material, e.g. synthetic rubber is arranged.
- the seals have to withstand climate-related temperature fluctuations of approx. -40 o C to +80 o C and that at pressures up to 375 bar.
- sealants that remain functional within this temperature range. However, they are not suitable for gaseous media at pressures up to 375 bar. At such pressures - especially at very low temperatures - the gas diffuses through the material. In addition, material stress is added that pressure fluctuations of up to 100 bar can occur in the hydraulic system of the switching mechanism during each switching operation. Such pressure fluctuations can destroy the structure of the material of the sealing rings if sealing rings with even minor structural defects are not discarded from the outset in the manufacture of the pressure accumulator.
- the invention is therefore based on the object of using constructive means to create a new seal by means of which the above-described difficulties with regard to the high material requirements can be eliminated.
- the invention is based on a pressure accumulator according to the preamble of patent claim 1.
- the annular disk-like shape of the sealing ring 5 has the advantage over the O-ring shape that the pressure emanating from the cover plate 2 and the cover ring 3 is evenly distributed over a substantially larger area.
- the radial deformation of the sealing ring with increasing pressure in the cylinder is thereby kept within permitted limits, so that there is no longer any danger of the cylinder wall expanding in the sealing area.
- the support rings close the gaps between the cover parts and the cylinder inner wall, so that the edges of the sealing ring can no longer be pressed in there.
- the drawing shows an axial section through one end of a pressure accumulator according to the invention.
- the pressure accumulator consists of a cylinder 1, which is closed at both ends by a removable end wall. In the cylinder there is a flying piston, not shown in the drawing, which divides the cylinder into two spaces. One cylinder space is connected to the line system of the pressure medium. The cylinder space located on the other side of the piston contains a pressure cushion made of compressed gas and has a connection device for connection to a gas pressure generator.
- Each end wall of the cylinder 1 consists of a cover plate 2, a cover ring 3 and a screw ring 4 which is screwed to the end portion 1 a of the cylinder 1.
- the cover plate 2 is inserted in the cylinder 1 and has a recess 2a on its peripheral surface.
- the cover ring 3 has an annular disk-like projection 3a projecting into the cylinder 1, with which it projects over the cover plate 2 in its recess 2a.
- the cover ring 3 also has a radially projecting edge 3b with which it rests on the end face of a recess 1b in the end section of the cylinder 1.
- the outer edge of the recess 2a in the cover plate 2 and the edge facing this recess on the annular disk-like projection 3a of the cover ring 3 are chamfered outwards, so that the recess has a wedge-shaped widening on each side towards the cylinder wall.
- a sealing ring 5 in the form of a thick washer made of flexible material. This has a recess 5a, 5b with a square cross-section on each of its two outer edges and on its inner wall on the cover ring side.
- the depth of the recesses 5b on the outer edges of the sealing ring 5 corresponds in each case to the depth of the bevels on the outer edge of the cover plate 2 or the outer edge of the cover ring 3 facing the cover plate 2, so that the respective of the recesses 5b in the sealing ring 5 and the bevels of the cover plate 2 or the cover ring 3, jointly formed ring grooves run out in a wedge shape towards the cylinder wall.
- Support rings 6, 7, 8 are formed in the ring grooves formed jointly by the recess 5a on the inner edge of the sealing ring 5 on the cover ring side and by the recesses 5b on the outer edges of the sealing ring 5 and the bevels on the outer ring edges of the cover plate 2 and the cover ring 3 a still deformable but im Compared to the sealing ring 5 arranged much firmer material, the cross sections of which correspond to the cross sections of the ring grooves.
- the support rings can be made of polyacethal resin, polyamide interspersed with semolina, copper or another suitable material.
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)
- Sealing Devices (AREA)
Abstract
Die Erfindung betrifft einen Druckspeicher für Hydraulikanlagen bestehend aus einem an seinen beiden Stirnseiten verschlossenen Zylinder mit einem den Zylinder in zwei Räume teilenden fliegenden Kolben. Der eine Zylinderraum ist mit dem Leitungssystem des Druckmediums verbunden, während der andere Zylinderraum ein Druckpolster aus komprimiertem Gas enthält und an einen Gasdruckerzeuger anschließbar ist. Die Stirnwände sind jeweils als in das Zylinderende eingesetzter Deckel ausgebildet, der auf seiner in den Zylinder hineinragenden Umfangsfläche eine Ausdrehung mit einer darin angeordneten Ringdichtung hat. Nach der Erfindung ist der Deckel aus einer Deckelplatte 2 und einem Deckelring 3 zusammengesetzt. Die Dekkelplatte 2 weist auf ihrem Umfang eine zur Außenseite hin offene Ausdrehung 2a auf. Der Deckelring 3 besteht aus einer in den Zylinder 1 hineinragenden Ringscheibe 3a, die die Deckelplatte 2 in deren Ausdrehung 2a hineinragend übergreift, wobei zwischen Deckelplatte 2 und Deckelring 3 ein ringnutförmiger Raum entsteht. In diesem befindet sich ein Dichtungsring 5 in Form einer Ringscheibe aus elastischem Material, die an ihren beiden Außenkanten sowie ihrer deckelringseitigen Innenkante je eine Ausdrehung 5a, 5b aufweist. In diesen Ausdrehungen sind Stützringe 6, 7, 8 aus einem noch verformbaren, aber im Vergleich zum Dichtungsring 5 festeren Material angeordnet, die der Stützung der Kanten des Dichtungsringes 5 dienen.The invention relates to a pressure accumulator for hydraulic systems consisting of a cylinder which is closed on its two end faces and has a flying piston which divides the cylinder into two spaces. One cylinder chamber is connected to the line system of the pressure medium, while the other cylinder chamber contains a pressure cushion made of compressed gas and can be connected to a gas pressure generator. The end walls are each designed as a cover inserted into the cylinder end, which has a recess on its circumferential surface projecting into the cylinder with an annular seal arranged therein. According to the invention, the cover is composed of a cover plate 2 and a cover ring 3. The cover plate 2 has on its periphery an opening 2a open to the outside. The cover ring 3 consists of an annular disk 3a projecting into the cylinder 1, which projects over the cover plate 2 in its recess 2a, an annular groove-shaped space being formed between the cover plate 2 and the cover ring 3. In this there is a sealing ring 5 in the form of an annular disk made of elastic material, which has a recess 5a, 5b on each of its two outer edges and its inner edge on the cover ring side. In these recesses, support rings 6, 7, 8 made of a material that is still deformable but firmer in comparison to the sealing ring 5, are used to support the edges of the sealing ring 5.
Description
Die vorliegende Erfindung betrifft einen Druckspeicher für Hydraulikanlagen in Schaltwerken elektrischer Hochspannungsleitungen, bestehend aus einem an seinen beiden Stirnseiten verschlossenen Zylinder, in dem sich ein den Zylinder in zwei Räume teilender fliegender Kolben befindet, wobei der eine Zylinderraum mit dem Leltungssystem des Druckmediums verbunden ist, welches diesen Zylinderraum ausfüllt, während der auf der anderen Seite des Kolbens befindliche Zylinderraum ein Druckpolster aus komprimiertem Gas enthält und an einen Gasdruckerzeuger anschließbar ist, wobei
- a) die Stirnwände jeweils als in das Zylinderende einsetzbarer Deckel ausgebildet sind, der mit einer Umfangsfläche an der Innenwand des Zylinders anliegt und mit einem vorspringenden Rand auf der Stirnfläche einer Ausdrehung der Zylinderinnenwand aufgesetzt ist,
- b) der Deckel durch einen mit dem Ende des Zylinders koaxial verschraubten Schraubring gehalten ist und
- c) der Deckel auf seiner in den Zylinder hlneinragenden Umfangsfläche eine Ausdrehung hat, in der eine Ringdichtung aus elastischem Material angeordnet ist.
- a) the end walls are each designed as a cover which can be inserted into the cylinder end and which bears with a circumferential surface on the inner wall of the cylinder and is fitted with a projecting edge on the end surface of a recess in the cylinder inner wall,
- b) the cover is held by a screw ring screwed coaxially to the end of the cylinder and
- c) the cover has a recess on its circumferential surface projecting into the cylinder, in which an annular seal made of elastic material is arranged.
Voraussetzung für eine dauerhafte zuverlässige Funktion eines solchen Druckspeichers Ist unter anderem eine einwandfreie Abdichtung der Stirnwände in den Zylinderenden. Bei einer bekannten Ausführung solcher Druckspeicher hat der Deckel auf seiner in den Zylinder hineinragenden Umfangsfläche eine Ausdrehung, in der eine Ringdichtung in Form eines O-Ringes aus elastischem Material, z.B. synthetischem Kautschuk angeordnet ist.A prerequisite for the permanent reliable functioning of such a pressure accumulator is, among other things, a perfect sealing of the end walls in the cylinder ends. In a known embodiment of such pressure accumulators, the cover has a recess on its circumferential surface projecting into the cylinder, in which a ring seal in the form of an O-ring made of elastic material, e.g. synthetic rubber is arranged.
Die Dichtungen müssen klimabedingten Temperaturschwankungen von ca. -40oC bis +80oC aushalten und zwar bei Drücken bis zu 375bar.The seals have to withstand climate-related temperature fluctuations of approx. -40 o C to +80 o C and that at pressures up to 375 bar.
Es gibt zwar Dichtungsstoffe, die innerhalb dieses Temperaturbereichs funktionsfähig bleiben. Sie sind aber nicht für gasförmige Medien bei Drücken bis zu 375bar geeignet. Das Gas diffundiert bei solchen Drücken - insbesondere bei sehr niedrigen Temperaturen - durch den Werkstoff hindurch. Materialbelastend kommt noch hinzu, daß bei jedem Schaltvorgang in dem Hydrauliksystem des Schaltwerkes Druckschwankungen bis zu 100bar auftreten können. Solche Druckschwankungen können das Material der Dichtungsringe in seiner Struktur zerstören, wenn nicht bei der Herstellung der Druckspeicher Dichtungsringe mit auch nur geringen Strukturmängeln von vornherein ausgesondert werden.There are sealants that remain functional within this temperature range. However, they are not suitable for gaseous media at pressures up to 375 bar. At such pressures - especially at very low temperatures - the gas diffuses through the material. In addition, material stress is added that pressure fluctuations of up to 100 bar can occur in the hydraulic system of the switching mechanism during each switching operation. Such pressure fluctuations can destroy the structure of the material of the sealing rings if sealing rings with even minor structural defects are not discarded from the outset in the manufacture of the pressure accumulator.
Nur wenige Hersteller sind überhaupt in der Lage, Dichtungsringe herzustellen, die solchen Ansprüchen genügen können. Aber auch dabei ist der Anteil der als unbrauchbar auszusondernden Dichtungsringe so hoch, daß die Aussonderung sowohl hinsichtlich der Materialkosten, als auch insbesondere hinsichtlich des hohen manuellen Arbeitsaufwandes für das Aussondern einen ganz beträchtlichen Anteil an den Kosten solcher Druckspeicher ausmachen.Few manufacturers are able to produce sealing rings that can meet such requirements. But even here the proportion of the sealing rings to be separated out as unusable is so high that the Elimination, both in terms of material costs and, in particular, in terms of the high manual work involved in the elimination, account for a very considerable proportion of the costs of such pressure accumulators.
Es ist ferner folgendes zu berücksichtigen: Bei einem Deckel aus einer Deckelplatte und einem gegen diesen beweglich angeordneten Deckelring kann sich der Querschnitt der zwischen diesen beiden Bauteilen befindlichen Ringnut gegen den Widerstand des Dichtungsringes verringern. Bei Verwendung einer Dichtung in der bekannten O-Ringform ergeben sich daher Schwierigkeiten dadurch, daß eine verhältnismäßig kleine Auflagefläche dem gesamten axial auf die Dichtung wirkenden Druck ausgesetzt ist. Der Dichtungsring verformt sich dann erheblich, wobei die Zylinderwand einem starken radia-1en Druck ausgesetzt ist, der zur Aufbauchung des Zylinders führen kann.The following also has to be taken into account: In the case of a cover made of a cover plate and a cover ring arranged movably against it, the cross section of the annular groove located between these two components can be reduced against the resistance of the sealing ring. When using a seal in the known O-ring shape, difficulties therefore arise from the fact that a relatively small contact surface is exposed to the entire pressure acting axially on the seal. The sealing ring then deforms considerably, the cylinder wall being exposed to strong radial pressure, which can lead to the bulge of the cylinder.
Außer.an den Dichtungen haben die Druckspeicher praktisch keinen Verschleiß. Der Erfindung liegt daher die Aufgabe zugrunde, mit konstruktiven Mitteln eine neue Dichtung zu schaffen, durch die die vorbeschriebenen Schwierigkeiten hinsichtlich der hohen Materialansprüche zu beseitigen sind.Except for the seals, the pressure accumulators have practically no wear. The invention is therefore based on the object of using constructive means to create a new seal by means of which the above-described difficulties with regard to the high material requirements can be eliminated.
Zur Lösung dieser Aufgabe geht die Erfindung aus von einem Druckspeicher gemäß dem Oberbegriff des Patentanspruchs 1.To achieve this object, the invention is based on a pressure accumulator according to the preamble of patent claim 1.
Die gestellte Aufgabe wird erfindungsgemäß gelöst durch die kennzeichnenden Merkmale der Patentansprüche 1 bis 7, wobei die Merkmale der Ansprüche 6 und 7 zwei alternative Lösungen für die Befestigung der Stirnwände an den Zylinderenden angeben.The object is achieved according to the invention by the characterizing features of claims 1 to 7, the features of
Die ringscheibenartige Form des Dichtungsringes 5 hat gegenüber der O-Ringform den Vorteil, daß der von der Deckelplatte 2 und dem Deckelring 3 ausgehende Druck auf eine wesentlich größere Fläche gleichmäßig verteilt wird. Die radiale Verformung des Dichtungsringes bei wachsendem Druck im Zylinder wird dadurch in erlaubten Grenzen gehalten, so daß die Gefahr einer Aufweitung der Zylinderwand im Dichtungsbereich nicht mehr besteht.The annular disk-like shape of the
Die Stützringe verschließen die Spalten zwischen den Deckelteilen und der Zylinderinnenwand, so daß die Kanten des Dichtungsringes nicht mehr dort hineingepreßt werden können.The support rings close the gaps between the cover parts and the cylinder inner wall, so that the edges of the sealing ring can no longer be pressed in there.
Die Erfindung wird im Folgenden anhand einer sie beispielsweise wiedergebenden Zeichnung mit weiteren Einzelheiten näher erläutert.The invention is explained in more detail below with the aid of a drawing, for example, which reproduces it.
Die Zeichnung stellt einen Axialschnitt durch ein Ende eines erfindungsgemäßen Druckspeichers dar.The drawing shows an axial section through one end of a pressure accumulator according to the invention.
Der Druckspeicher besteht aus einem Zylinder 1, der an beiden Stirnenden Jeweils durch eine abnehmbare Stirnwand verschlossen ist. In dem Zylinder befindet sich ein in der Zeichnung nicht dargestellter, den Zylinder in zwei Räume teilender fliegender Kolben. Der eine Zylinderraum ist mit dem Leitungssystem des Druckmediums verbunden. Der auf der anderen Seite des Kolbens befindliche Zylinderraum enthält ein Druckpolster aus komprimiertem Gas und weist eine Anschlußeinrichtung zur Verbindung mit einem Gasdruckerzeuger auf.The pressure accumulator consists of a cylinder 1, which is closed at both ends by a removable end wall. In the cylinder there is a flying piston, not shown in the drawing, which divides the cylinder into two spaces. One cylinder space is connected to the line system of the pressure medium. The cylinder space located on the other side of the piston contains a pressure cushion made of compressed gas and has a connection device for connection to a gas pressure generator.
Jede Stirnwand des Zylinders 1 besteht aus einer Deckelplatte 2, einem Deckelring 3 und einem Schraubring 4, der mit dem Endabschnitt 1a des Zylinders 1 verschraubt ist.Each end wall of the cylinder 1 consists of a cover plate 2, a
Die Deckelplatte 2 ist in den Zylinder 1 eingesetzt und weist an ihrer Umfangsfläche eine Ausdrehung 2a auf. Der Deckelring 3 hat einen In den Zylinder 1 hineinragenden ringscheibenartigen Ansatz 3a, mit dem er die Deckelplatte 2 in deren Ausdrehung 2a hineinragend übergreift.The cover plate 2 is inserted in the cylinder 1 and has a recess 2a on its peripheral surface. The
Der Deckelring 3 hat ferner einen radial vorstehenden Rand 3b, mit dem er auf der Stirnfläche einer Ausdrehung 1b im Endabschnitt des Zylinders 1 aufsitzt. Der äußere Rand der Ausdrehung 2a In der Deckelplatte 2 und der dieser Ausdrehung zugekehrte Rand am ringscheibenartigen Ansatz 3a des Deckelringes 3 sind nach außen abgeschrägt, so daß die Ausdrehung zur Zylinderwand hin auf jeder Seite eine keilförmige Erweiterung aufweist.The
In dem von der Deckelplatte 2 einerseits und dem Deckelring 3 andererseits begrenzten ringnutenförmigen Raum befindet sich ein Dichtungsring 5 in Form einer dicken Ringscheibe aus weichelastischem Material. Diese weist an ihren beiden Außenkanten sowie an ihrer deckelringseitigen Innenwand je eine Ausdrehung 5a, 5b mit quadratischem Querschnitt auf. Die Tiefe der Ausdrehungen 5b an den Außenkanten des Dichtungsringes 5 entspricht Jeweils der Tiefe der Abschrägungen am äußeren Rand der Deckelplatte 2 bzw. dem der Deckelplatte 2 zugekehrten Außenrand des Deckelringes 3, so daß die Jeweils von den Ausdrehungen 5b im Dichtungsring 5 und den Abschrägungen an der Deckelplatte 2 bzw. dem Deckelring 3 gemeinsam gebildeten Ringnuten keilförmig zur Zylinderwand hin auslaufen.In the annular groove-shaped space delimited by the cover plate 2 on the one hand and the
In den von der Ausdrehung 5a an der deckelringseitigen Innenkante des Dichtungsringes 5 sowie von den Ausdrehungen 5b an den Außenkanten des Dichtungsringes 5 und den Abschrägungen an den dichtungsringseitigen Außenkanten der Deckelplatte 2 und des Deckelringes 3 Jeweils gemeinsam gebildeten Ringnuten sind Stützringe 6, 7, 8 aus einem noch verformbaren, aber Im Vergleich zum Dichtungsring 5 wesentlich festeren Material angeordnet, deren Querschnitte jeweils den Querschnitten der Ringnuten entsprechen.
Die Stützringe können aus Polyacethalharz, aus mit Glasgrieß durchsetztem Polyamid, aus Kupfer oder einem anderen geeigneten Material bestehen.The support rings can be made of polyacethal resin, polyamide interspersed with semolina, copper or another suitable material.
Claims (7)
gekennzeichnet durch folgende Merkmale und deren Kombination:
characterized by the following features and their combination:
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3204205 | 1982-02-08 | ||
DE19823204205 DE3204205A1 (en) | 1982-02-08 | 1982-02-08 | Pressure reservoir |
DE3231723 | 1982-08-26 | ||
DE19823231723 DE3231723A1 (en) | 1982-08-26 | 1982-08-26 | Pressure reservoir |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0085934A1 true EP0085934A1 (en) | 1983-08-17 |
EP0085934B1 EP0085934B1 (en) | 1985-11-13 |
Family
ID=25799426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83100963A Expired EP0085934B1 (en) | 1982-02-08 | 1983-02-02 | Pressure accumulator |
Country Status (3)
Country | Link |
---|---|
US (1) | US4595038A (en) |
EP (1) | EP0085934B1 (en) |
DE (1) | DE3361190D1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5311910A (en) * | 1991-02-20 | 1994-05-17 | Kabushiki Kaisha Showa Seisakusho | Cap attachment structure for accumulator |
US6460571B1 (en) * | 2001-03-13 | 2002-10-08 | Parker-Hannifin Corporation | Crimped piston/membrane accumulator |
CN1329679C (en) * | 2005-03-14 | 2007-08-01 | 浙江大学 | Sealing device for high-pressure container |
JP5405884B2 (en) * | 2009-04-22 | 2014-02-05 | 株式会社日立製作所 | Turbomachine barrel type casing and head cover mounting structure |
TWI690291B (en) * | 2018-12-27 | 2020-04-11 | 達璞股份有限公司 | Sealing plug assembly |
Citations (4)
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---|---|---|---|---|
GB886588A (en) * | 1959-05-06 | 1962-01-10 | Parker Hannifin Corp | Cylinder and head structures for accumulators |
DE2019407B2 (en) * | 1970-04-22 | 1975-07-10 | Hydrotechnik Gmbh, 6051 Laemmerspiel | Separating piston for a hydropneumatic storage cylinder - has seal whose contact pressure is increased with pressure differential |
DE7802713U1 (en) * | 1978-05-18 | Bolenz & Schaefer Maschinenfabrik Kg, 3561 Eckelshausen | Cylindrical pressure accumulator for hydraulic systems | |
DE8224088U1 (en) * | 1983-01-13 | Bolenz & Schäfer Maschinenfabrik Zweigniederlassung der Rexnord GmbH, 3560 Biedenkopf | Pressure accumulator |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA532404A (en) * | 1956-10-30 | L. M. Morrison John | Sealing glands for pressure vessels | |
US955500A (en) * | 1909-07-26 | 1910-04-19 | Cornelius S Clark | Leak-stopper for boiler-tubes. |
US2658809A (en) * | 1948-05-17 | 1953-11-10 | Edward H Schultz | Hydraulic fluid seal |
FR1175120A (en) * | 1957-05-14 | 1959-03-20 | Improvements to oleo-pneumatic accumulators | |
US3364950A (en) * | 1965-10-24 | 1968-01-23 | Zajdler Andrew | Hydraulic shock absorbers |
US3521893A (en) * | 1968-05-14 | 1970-07-28 | Greene Tweed & Co Inc | Nonextrusion ring |
CH508046A (en) * | 1969-05-07 | 1971-05-31 | Biolog Verfahrenstechnik Ag F | Fermenter |
US3695482A (en) * | 1971-06-14 | 1972-10-03 | Lummus Co | Pressure vessel seal |
SE420436B (en) * | 1980-02-04 | 1981-10-05 | Gustav Weqscheider | HYDROPNEUMATIC ACCUMULATOR WITH IN A CYLINDER FREE SHIPPING PISTON |
US4443016A (en) * | 1982-10-30 | 1984-04-17 | Klockner-Becorit Gmbh | Clamp ring device for the securing and removal of a cover over a pressure vessel |
-
1983
- 1983-02-02 DE DE8383100963T patent/DE3361190D1/en not_active Expired
- 1983-02-02 EP EP83100963A patent/EP0085934B1/en not_active Expired
-
1984
- 1984-09-24 US US06/654,054 patent/US4595038A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7802713U1 (en) * | 1978-05-18 | Bolenz & Schaefer Maschinenfabrik Kg, 3561 Eckelshausen | Cylindrical pressure accumulator for hydraulic systems | |
DE8224088U1 (en) * | 1983-01-13 | Bolenz & Schäfer Maschinenfabrik Zweigniederlassung der Rexnord GmbH, 3560 Biedenkopf | Pressure accumulator | |
GB886588A (en) * | 1959-05-06 | 1962-01-10 | Parker Hannifin Corp | Cylinder and head structures for accumulators |
DE2019407B2 (en) * | 1970-04-22 | 1975-07-10 | Hydrotechnik Gmbh, 6051 Laemmerspiel | Separating piston for a hydropneumatic storage cylinder - has seal whose contact pressure is increased with pressure differential |
Also Published As
Publication number | Publication date |
---|---|
US4595038A (en) | 1986-06-17 |
DE3361190D1 (en) | 1985-12-19 |
EP0085934B1 (en) | 1985-11-13 |
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