GB755342A - Improvements in or relating to free piston hydraulic accumulators - Google Patents

Improvements in or relating to free piston hydraulic accumulators

Info

Publication number
GB755342A
GB755342A GB736054A GB736054A GB755342A GB 755342 A GB755342 A GB 755342A GB 736054 A GB736054 A GB 736054A GB 736054 A GB736054 A GB 736054A GB 755342 A GB755342 A GB 755342A
Authority
GB
United Kingdom
Prior art keywords
passage
piston
chamber
hydraulic
gas
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.)
Expired
Application number
GB736054A
Inventor
Frederick James Box
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.)
Keelavite Co Ltd
Original Assignee
Keelavite Co Ltd
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
Application filed by Keelavite Co Ltd filed Critical Keelavite Co Ltd
Priority to GB736054A priority Critical patent/GB755342A/en
Publication of GB755342A publication Critical patent/GB755342A/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
    • F15B1/24—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
    • F15B2201/411—Liquid ports having valve means

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)

Abstract

755,342. Hydraulic accumulators. KEELAVITE CO., Ltd. May 24, 1955 [March 12, 1954], No. 7360/54. Class 69 (2). A hydro-pneumatic accumulator comprises a piston 5 loaded by gas in a chamber 6 and having a hydraulic chamber 7 communicating through a passage 4 with a hydraulic system. A projection 11 is fast with the piston and is formed with a head 14 which enters the passage 4 as the piston descends towards the exhausted condition of the accumulator, thus restricting flow. On further downward movement the passage 4 is closed by a disc valve 16. The liquid trapped in chamber 7 is maintained at a pressure higher than that of the gas in chamber 6 owing to the differential areas of the piston. Leakage of gas into the hydraulic chamber is thus prevented. When the pressure in the hydraulic system rises, it acts through a passage 21, provided with a non-return valve 22, and passages 26 formed in the head 14, upon the disc valve 16 to lift it, and then upon the piston 5, which may thus be raised rapidly in spite of the presence of the bead 14 in the passage 4.
GB736054A 1954-03-12 1954-03-12 Improvements in or relating to free piston hydraulic accumulators Expired GB755342A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB736054A GB755342A (en) 1954-03-12 1954-03-12 Improvements in or relating to free piston hydraulic accumulators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB736054A GB755342A (en) 1954-03-12 1954-03-12 Improvements in or relating to free piston hydraulic accumulators

Publications (1)

Publication Number Publication Date
GB755342A true GB755342A (en) 1956-08-22

Family

ID=9831618

Family Applications (1)

Application Number Title Priority Date Filing Date
GB736054A Expired GB755342A (en) 1954-03-12 1954-03-12 Improvements in or relating to free piston hydraulic accumulators

Country Status (1)

Country Link
GB (1) GB755342A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148707A (en) * 1962-03-23 1964-09-15 Smyklo Alexander Automatic hydraulic buffer
EP0033571A1 (en) * 1980-02-04 1981-08-12 Gustav Wegscheider Hydropneumatic accumulator
EP0125849A2 (en) * 1983-05-06 1984-11-21 Carl R. Mills Piston accumulator
GB2156435A (en) * 1984-03-30 1985-10-09 Bosch Gmbh Robert Pressure medium accumulator
EP0286777A2 (en) * 1987-04-14 1988-10-19 Gesellschaft für Hydraulik-Zubehör mbH Piston-cylinder unit
EP0425876A2 (en) * 1989-10-28 1991-05-08 Hermann Hemscheidt Maschinenfabrik GmbH & Co. Hydropneumatic piston accumulator
US20230090796A1 (en) * 2018-02-09 2023-03-23 Hydac Technology Gmbh Piston accumulator
DE102022000098A1 (en) 2022-01-12 2023-07-13 Hydac Technology Gmbh piston accumulator
DE102022000176A1 (en) 2022-01-18 2023-07-20 Hydac Technology Gmbh piston accumulator

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148707A (en) * 1962-03-23 1964-09-15 Smyklo Alexander Automatic hydraulic buffer
EP0033571A1 (en) * 1980-02-04 1981-08-12 Gustav Wegscheider Hydropneumatic accumulator
EP0033571B1 (en) * 1980-02-04 1984-08-08 Gustav Wegscheider Hydropneumatic accumulator
EP0125849A2 (en) * 1983-05-06 1984-11-21 Carl R. Mills Piston accumulator
EP0125849A3 (en) * 1983-05-06 1987-11-25 Carl R. Mills Piston accumulator
GB2156435A (en) * 1984-03-30 1985-10-09 Bosch Gmbh Robert Pressure medium accumulator
EP0286777A2 (en) * 1987-04-14 1988-10-19 Gesellschaft für Hydraulik-Zubehör mbH Piston-cylinder unit
EP0286777A3 (en) * 1987-04-14 1989-12-06 Gesellschaft für Hydraulik-Zubehör mbH Piston-cylinder unit
EP0425876A2 (en) * 1989-10-28 1991-05-08 Hermann Hemscheidt Maschinenfabrik GmbH & Co. Hydropneumatic piston accumulator
EP0425876A3 (en) * 1989-10-28 1991-09-11 Hermann Hemscheidt Maschinenfabrik Gmbh & Co. Hydropneumatic piston accumulator
US20230090796A1 (en) * 2018-02-09 2023-03-23 Hydac Technology Gmbh Piston accumulator
DE102022000098A1 (en) 2022-01-12 2023-07-13 Hydac Technology Gmbh piston accumulator
WO2023134978A1 (en) * 2022-01-12 2023-07-20 Hydac Technology Gmbh Piston accumulator
DE102022000176A1 (en) 2022-01-18 2023-07-20 Hydac Technology Gmbh piston accumulator
WO2023138868A1 (en) * 2022-01-18 2023-07-27 Hydac Technology Gmbh Piston accumulator

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