GB1127731A - Hydraulic device - Google Patents

Hydraulic device

Info

Publication number
GB1127731A
GB1127731A GB573165A GB573165A GB1127731A GB 1127731 A GB1127731 A GB 1127731A GB 573165 A GB573165 A GB 573165A GB 573165 A GB573165 A GB 573165A GB 1127731 A GB1127731 A GB 1127731A
Authority
GB
United Kingdom
Prior art keywords
bellows
piston
chambers
inner chamber
cylinder
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
GB573165A
Inventor
George Alan Montgomerie
Peter Clifford Walwin
George William Keeling
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.)
Serck R&D Ltd
Original Assignee
Serck R&D 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 Serck R&D Ltd filed Critical Serck R&D Ltd
Priority to GB573165A priority Critical patent/GB1127731A/en
Priority to CH189666A priority patent/CH450924A/en
Publication of GB1127731A publication Critical patent/GB1127731A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
    • G05D16/0616—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a bellow
    • G05D16/0619—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a bellow acting directly on the obturator
    • 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
    • F15B1/103—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means the separating means being bellows
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • 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
    • 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
    • F15B2201/3153—Accumulator separating means having flexible separating means the flexible separating means being bellows
    • 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
    • F15B2201/413—Liquid ports having multiple liquid ports

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Diaphragms And Bellows (AREA)

Abstract

1,127,731. Pistons; valves. SERCK R & D Ltd. 1 Feb., 1966 [10 Feb., 1965], No.5731/65. Headings F2T and F2V. [Also in Division F1] An hydraulic device comprises a vessel divided into two chambers by an internal bellows constituted by a stack of pre-stressed metal washers at least some of which are dished and at least some of which are resilient. The device may form part of an hydraulic ram, Fig. 3, in which a cylinder 30 is divided into two chambers by a bellows of pre-compressed washers 31 closed at one end by a piston 32 and at the other end by a closure member 34. The piston is spaced from the cylinder by four peripheral projections 32a on the piston so that the bellows acts as a seal between the cylinder and the piston and also provides a spring force resisting movement of the piston in response to fluid supplied through a port 37. In a second embodiment the device is incorporated in a valve, Fig. 4, for maintaining a substantially constant flow rate therethrough. The valve comprises a vessel 42 divided into two chambers by a bellows constituted by a stack of pre-loaded metal washers 43. The bellows is responsive to the pressure difference between the two chambers and has an end-plate 44 carrying a control element which coacts with a sleeve 48 to control the flow from the inner chamber to an outlet 49. The outer chamber is subjected to the static inlet pressure through a passage 41 and the inner chamber is subjected to the pressure after throttling by a variable restrictor 46. If the flow increases the throttled pressure in the inner chamber decreases and the bellows contracts to reduce the flow from the inner chamber into the sleeve 48. The compression of the bellows may be adjusted by screws 50.
GB573165A 1965-02-10 1965-02-10 Hydraulic device Expired GB1127731A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB573165A GB1127731A (en) 1965-02-10 1965-02-10 Hydraulic device
CH189666A CH450924A (en) 1965-02-10 1966-02-10 Hydraulic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB573165A GB1127731A (en) 1965-02-10 1965-02-10 Hydraulic device

Publications (1)

Publication Number Publication Date
GB1127731A true GB1127731A (en) 1968-09-18

Family

ID=9801585

Family Applications (1)

Application Number Title Priority Date Filing Date
GB573165A Expired GB1127731A (en) 1965-02-10 1965-02-10 Hydraulic device

Country Status (2)

Country Link
CH (1) CH450924A (en)
GB (1) GB1127731A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1382859A1 (en) * 2002-07-15 2004-01-21 Advics Co., Ltd. hydraulic circuit
EP1498615A1 (en) * 2002-04-19 2005-01-19 Advics Co., Ltd. Hydraulic accumulator
WO2007000128A1 (en) * 2005-06-29 2007-01-04 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Hydraulic accumulator
US7658207B2 (en) 2005-06-29 2010-02-09 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Hydraulic pressure reservoir

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3776267A (en) * 1972-09-07 1973-12-04 Borg Warner Pressure transfer unit with bellows
WO2000031420A1 (en) * 1998-11-25 2000-06-02 Continental Teves Ag & Co. Ohg Pressure means storage device
CH716202B1 (en) * 2019-05-20 2022-09-30 Schlumpf Innovations Gmbh Pressure accumulator for hydraulic system.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1498615A1 (en) * 2002-04-19 2005-01-19 Advics Co., Ltd. Hydraulic accumulator
EP1498615A4 (en) * 2002-04-19 2006-01-04 Advics Co Ltd Hydraulic accumulator
EP1382859A1 (en) * 2002-07-15 2004-01-21 Advics Co., Ltd. hydraulic circuit
US7152931B2 (en) 2002-07-15 2006-12-26 Advics Co., Ltd. Hydraulic circuit with accumulator
WO2007000128A1 (en) * 2005-06-29 2007-01-04 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Hydraulic accumulator
US7658207B2 (en) 2005-06-29 2010-02-09 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Hydraulic pressure reservoir
CN101213374B (en) * 2005-06-29 2010-07-28 卢克摩擦片和离合器两合公司 Hydraulic pressure reservoir

Also Published As

Publication number Publication date
CH450924A (en) 1968-05-15

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