EP0035427A3 - Prestressed accumulator - Google Patents

Prestressed accumulator Download PDF

Info

Publication number
EP0035427A3
EP0035427A3 EP81400246A EP81400246A EP0035427A3 EP 0035427 A3 EP0035427 A3 EP 0035427A3 EP 81400246 A EP81400246 A EP 81400246A EP 81400246 A EP81400246 A EP 81400246A EP 0035427 A3 EP0035427 A3 EP 0035427A3
Authority
EP
European Patent Office
Prior art keywords
prestressed
accumulator
mechanical element
shells
hydraulic accumulator
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
EP81400246A
Other languages
French (fr)
Other versions
EP0035427B1 (en
EP0035427A2 (en
Inventor
Louis-Claude Porel
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.)
Rene Leduc & Fils Ets SA
Original Assignee
Rene Leduc & Fils Ets SA
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 FR8004313A external-priority patent/FR2476768A1/en
Priority claimed from FR8009781A external-priority patent/FR2481762A2/en
Application filed by Rene Leduc & Fils Ets SA filed Critical Rene Leduc & Fils Ets SA
Publication of EP0035427A2 publication Critical patent/EP0035427A2/en
Publication of EP0035427A3 publication Critical patent/EP0035427A3/en
Application granted granted Critical
Publication of EP0035427B1 publication Critical patent/EP0035427B1/en
Expired legal-status Critical Current

Links

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
    • F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
    • F15B1/12—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means attached at their periphery
    • 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
    • F15B2201/315—Accumulator separating means having flexible separating means
    • F15B2201/3151—Accumulator separating means having flexible separating means the flexible separating means being diaphragms or membranes
    • 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
    • F15B2201/3156—Accumulator separating means having flexible separating means characterised by their attachment
    • 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
    • F15B2201/411—Liquid ports having valve 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
    • F15B2201/40—Constructional details of accumulators not otherwise provided for
    • F15B2201/415—Gas ports
    • F15B2201/4155—Gas ports having valve 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
    • F15B2201/40—Constructional details of accumulators not otherwise provided for
    • F15B2201/43—Anti-extrusion means
    • F15B2201/435—Anti-extrusion means being fixed to the 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
    • F15B2201/60—Assembling or methods for making accumulators
    • 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
    • F15B2201/60—Assembling or methods for making accumulators
    • F15B2201/605—Assembling or methods for making housings therefor
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49394—Accumulator making
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/48—Shrunk fit
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/57—Distinct end coupler

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)
  • Press Drives And Press Lines (AREA)
  • Valve Device For Special Equipments (AREA)
  • Control Of Eletrric Generators (AREA)
  • Control Of Transmission Device (AREA)

Abstract

A hydraulic accumulator comprises two-halfs shells, the diaphragm therebetween defining two cavities. One cavity contains presssurized gas and the cavity receives hydraulic fluid under pressure. The two-half shells are held together by a mechanical element, such as a belt which has been previously prestressed to a tension selected according to the maximum pressure to which the accumulator will be subjected. The use of the prestressed mechanical element changes the dynamic stresses ordinarily found in a hydraulic accumulator to static stresses, thus minimizing the occurrence of creeks and failure of the device.
EP81400246A 1980-02-27 1981-02-18 Method of making a prestressed accumulator and accumulator according to this method Expired EP0035427B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8004313A FR2476768A1 (en) 1980-02-27 1980-02-27 Stress reduced oleo-pneumatic pressure accumulator - has diaphragm gripped between two half shells clamped together by internally threaded outer sleeve
FR8004313 1980-02-27
FR8009781A FR2481762A2 (en) 1980-04-30 1980-04-30 Stress reduced oleo-pneumatic pressure accumulator - has diaphragm gripped between two half shells clamped together by internally threaded outer sleeve
FR8009781 1980-04-30

Publications (3)

Publication Number Publication Date
EP0035427A2 EP0035427A2 (en) 1981-09-09
EP0035427A3 true EP0035427A3 (en) 1981-10-07
EP0035427B1 EP0035427B1 (en) 1984-10-24

Family

ID=26221636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81400246A Expired EP0035427B1 (en) 1980-02-27 1981-02-18 Method of making a prestressed accumulator and accumulator according to this method

Country Status (6)

Country Link
US (1) US4492013A (en)
EP (1) EP0035427B1 (en)
AT (1) ATE10024T1 (en)
CA (1) CA1153281A (en)
DE (1) DE3166761D1 (en)
ES (1) ES499284A0 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH652174A5 (en) * 1981-02-27 1985-10-31 Leduc Rene Hydro Sa OLEO-PNEUMATIC ACCUMULATOR AND METHOD FOR MANUFACTURING THE ACCUMULATOR.
US5062455A (en) * 1989-08-25 1991-11-05 A. O. Smith Corporation Pressure vessel with diaphragm compression seal
US8454324B2 (en) * 2004-03-18 2013-06-04 Precision Dispensing Systems Limited Pump
FR2938308B1 (en) * 2008-11-07 2012-04-20 Hydro Leduc IMPROVEMENTS ON PISTON OLEOPNEUMATIC ACCUMULATORS
CN105397432B (en) * 2015-12-24 2017-10-27 成都茵普精密机械有限公司 A kind of high-precision close fit orthodrome Efficient Process Technology
JP6942149B2 (en) * 2017-02-03 2021-09-29 イーグル工業株式会社 accumulator
WO2018143030A1 (en) 2017-02-03 2018-08-09 イーグル工業株式会社 Accumulator
WO2018143066A1 (en) 2017-02-03 2018-08-09 イーグル工業株式会社 Accumulator
JP6702905B2 (en) * 2017-03-13 2020-06-03 日本発條株式会社 accumulator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2155255A1 (en) * 1971-11-06 1973-05-10 Langen & Co HYDRO-PNEUMATIC PRESSURE ACCUMULATOR
DE2532807B1 (en) * 1975-07-23 1976-11-04 Langen & Co, 4000 Duesseldorf Hydro-pneumatic pressure accumulator
DE2708085A1 (en) * 1977-02-25 1978-08-31 Nikolai Dr Ing Dr Mon Janakiev Burst-proof casing for pressure vessel - has pipes interconnected and spaced round vessel to make small area contact via rib spacers
DE2755457A1 (en) * 1977-12-13 1979-06-28 Bosch Gmbh Robert PRESSURE VESSEL
EP0007970A1 (en) * 1978-08-05 1980-02-20 ALFRED TEVES GmbH Pressure accumulator

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563257A (en) * 1946-09-16 1951-08-07 Ernest W Loukonen Pulsation absorber
US2667184A (en) * 1952-02-05 1954-01-26 Alltools Ltd Hydrostatic coupling
BE529955A (en) * 1953-07-27
US3094074A (en) * 1960-12-27 1963-06-18 Walbro Corp Bladder fuel pump
US3179054A (en) * 1962-07-23 1965-04-20 Walbro Corp Bladder fuel pump
GB1095221A (en) * 1964-11-30 1967-12-13 Lucas Industries Ltd Hydraulic accumulator
CH457053A (en) * 1967-04-18 1968-05-31 Bbc Brown Boveri & Cie Coupling for the transmission of large torques
NL6815387A (en) * 1967-10-30 1969-05-02
US3587395A (en) * 1968-04-08 1971-06-28 Robertshaw Controls Co Pneumatic control system and parts therefor or the like
DE7830603U1 (en) * 1978-10-13 1979-05-17 Elektromanufaktur Zangenstein Hanauer Gmbh & Co, 8471 Zangenstein MEMBRANDOSE FOR PRESSURE SWITCH
US4191485A (en) * 1978-10-30 1980-03-04 Carrier Corporation Apparatus for securing a wheel to a rotatable shaft of a turbo-machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2155255A1 (en) * 1971-11-06 1973-05-10 Langen & Co HYDRO-PNEUMATIC PRESSURE ACCUMULATOR
DE2532807B1 (en) * 1975-07-23 1976-11-04 Langen & Co, 4000 Duesseldorf Hydro-pneumatic pressure accumulator
FR2319036A1 (en) * 1975-07-23 1977-02-18 Langen & Co HYDROPNEUMATIC PRESSURE ACCUMULATOR
DE2708085A1 (en) * 1977-02-25 1978-08-31 Nikolai Dr Ing Dr Mon Janakiev Burst-proof casing for pressure vessel - has pipes interconnected and spaced round vessel to make small area contact via rib spacers
DE2755457A1 (en) * 1977-12-13 1979-06-28 Bosch Gmbh Robert PRESSURE VESSEL
EP0007970A1 (en) * 1978-08-05 1980-02-20 ALFRED TEVES GmbH Pressure accumulator

Also Published As

Publication number Publication date
ES8201694A1 (en) 1982-01-01
CA1153281A (en) 1983-09-06
EP0035427B1 (en) 1984-10-24
ES499284A0 (en) 1982-01-01
EP0035427A2 (en) 1981-09-09
ATE10024T1 (en) 1984-11-15
US4492013A (en) 1985-01-08
DE3166761D1 (en) 1984-11-29

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