EP0085934A1 - Accumulateur de pression - Google Patents

Accumulateur de pression Download PDF

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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
Application number
EP83100963A
Other languages
German (de)
English (en)
Other versions
EP0085934B1 (fr
Inventor
Manfred Wege
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.)
Bolenz & Schafer Maschinenfabrik Zweigniederlassung Der Rexnord GmbH
Original Assignee
Bolenz & Schafer Maschinenfabrik Zweigniederlassung Der Rexnord GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19823204205 external-priority patent/DE3204205A1/de
Priority claimed from DE19823231723 external-priority patent/DE3231723A1/de
Application filed by Bolenz & Schafer Maschinenfabrik Zweigniederlassung Der Rexnord GmbH filed Critical Bolenz & Schafer Maschinenfabrik Zweigniederlassung Der Rexnord GmbH
Publication of EP0085934A1 publication Critical patent/EP0085934A1/fr
Application granted granted Critical
Publication of EP0085934B1 publication Critical patent/EP0085934B1/fr
Expired 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
    • F15B1/24—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)
EP83100963A 1982-02-08 1983-02-02 Accumulateur de pression Expired EP0085934B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19823204205 DE3204205A1 (de) 1982-02-08 1982-02-08 Druckspeicher
DE3204205 1982-02-08
DE19823231723 DE3231723A1 (de) 1982-08-26 1982-08-26 Druckspeicher
DE3231723 1982-08-26

Publications (2)

Publication Number Publication Date
EP0085934A1 true EP0085934A1 (fr) 1983-08-17
EP0085934B1 EP0085934B1 (fr) 1985-11-13

Family

ID=25799426

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83100963A Expired EP0085934B1 (fr) 1982-02-08 1983-02-02 Accumulateur de pression

Country Status (3)

Country Link
US (1) US4595038A (fr)
EP (1) EP0085934B1 (fr)
DE (1) DE3361190D1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
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 (zh) * 2005-03-14 2007-08-01 浙江大学 一种高压容器密封装置
JP5405884B2 (ja) * 2009-04-22 2014-02-05 株式会社日立製作所 ターボ機械のバレル型ケーシングとヘッドカバーの取付構造
TWI690291B (zh) * 2018-12-27 2020-04-11 達璞股份有限公司 密封栓塞組件

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB886588A (en) * 1959-05-06 1962-01-10 Parker Hannifin Corp Cylinder and head structures for accumulators
DE2019407B2 (de) * 1970-04-22 1975-07-10 Hydrotechnik Gmbh, 6051 Laemmerspiel Trennkolben fuer hydropneumatische Energiespeicher
DE7802713U1 (de) * 1978-05-18 Bolenz & Schaefer Maschinenfabrik Kg, 3561 Eckelshausen Zylindrischer Druckspeicher für Hydraulikanlagen
DE8224088U1 (de) * 1983-01-13 Bolenz & Schäfer Maschinenfabrik Zweigniederlassung der Rexnord GmbH, 3560 Biedenkopf Druckspeicher

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA532404A (fr) * 1956-10-30 L. M. Morrison John Bagues d'etancheite pour recipients a pression
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 (fr) * 1957-05-14 1959-03-20 Perfectionnements aux accumulateurs oléo-pneumatiques
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 (de) * 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 (sv) * 1980-02-04 1981-10-05 Gustav Weqscheider Hydropneumatisk ackumulator med i en cylinder fritt forskjutbar kolv
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7802713U1 (de) * 1978-05-18 Bolenz & Schaefer Maschinenfabrik Kg, 3561 Eckelshausen Zylindrischer Druckspeicher für Hydraulikanlagen
DE8224088U1 (de) * 1983-01-13 Bolenz & Schäfer Maschinenfabrik Zweigniederlassung der Rexnord GmbH, 3560 Biedenkopf Druckspeicher
GB886588A (en) * 1959-05-06 1962-01-10 Parker Hannifin Corp Cylinder and head structures for accumulators
DE2019407B2 (de) * 1970-04-22 1975-07-10 Hydrotechnik Gmbh, 6051 Laemmerspiel Trennkolben fuer hydropneumatische Energiespeicher

Also Published As

Publication number Publication date
DE3361190D1 (en) 1985-12-19
US4595038A (en) 1986-06-17
EP0085934B1 (fr) 1985-11-13

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