EP1181457B1 - Accumulateur de pression hydropneumatique - Google Patents

Accumulateur de pression hydropneumatique Download PDF

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Publication number
EP1181457B1
EP1181457B1 EP00912582A EP00912582A EP1181457B1 EP 1181457 B1 EP1181457 B1 EP 1181457B1 EP 00912582 A EP00912582 A EP 00912582A EP 00912582 A EP00912582 A EP 00912582A EP 1181457 B1 EP1181457 B1 EP 1181457B1
Authority
EP
European Patent Office
Prior art keywords
valve
end plate
metal bellows
tappet
gas chamber
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 - Lifetime
Application number
EP00912582A
Other languages
German (de)
English (en)
Other versions
EP1181457A1 (fr
Inventor
Norbert Weber
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.)
Hydac Technology GmbH
Original Assignee
Hydac Technology 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
Application filed by Hydac Technology GmbH filed Critical Hydac Technology GmbH
Publication of EP1181457A1 publication Critical patent/EP1181457A1/fr
Application granted granted Critical
Publication of EP1181457B1 publication Critical patent/EP1181457B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F15B1/22—Liquid port constructions
    • 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
    • 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
    • F15B2201/3153—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
    • F15B2201/411—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

Definitions

  • the invention relates to a hydropneumatic pressure accumulator with the features of the preamble of claim 1.
  • Fig. 4 from PATENT ABSTRACTS OF JAPAN vol. 1996, no. 09, September 30, 1996, (1996-09-30) & JP 08 121401 A (NOK), May 14, 1996 (1996-05-14) is a generic hydropneumatic pressure accumulator known with a gas space and an oil space and a metal bellows separating these spaces, which has an end plate which can be moved in accordance with the volume changes from gas space to oil space.
  • a valve tappet connected to the end plate of the metal bellows has a locking body, the two opposite sides of which are designed as valve cones and can be brought into contact with a valve seat, which is arranged on the separating plate, and once with a valve seat on the bottom-side hydraulic connection, which in Points towards the interior of the further fluid space.
  • both the valve cones mentioned and the valve seats point away from one another with the apices of their conical surfaces, a good sealing behavior being achieved via the conical surfaces.
  • the known device has a large structure and with regard to the fluid quantities to be moved in the metal bellows and additionally in the further fluid space, the actuation behavior for the valve is delayed, so that overloading of the metal bellows can occur, at least for a short time.
  • the invention has for its object to provide a pressure accumulator of the type under consideration, in which overloads of the metal bellows during operation are avoided with certainty.
  • a hydropneumatic pressure accumulator of the type mentioned this object is achieved according to the invention in that the hydraulic connection contains the valve with its two valve seats, that the apex of the conical surfaces of both valve seats and both valve cones face each other, and that the valve seats are arranged axially between the valve cones ,
  • a compact hydraulic accumulator is created and the valve in the hydraulic connection is activated directly via the end plate of the metal bellows, so that due to the low fluid volume to be controlled in the metal bellows, in addition to the reduction in weight compared to known solutions, a particularly good response behavior is also ensured. Furthermore, overloading of the metal bellows is avoided with certainty.
  • the pressure accumulator shown in FIG. 1 has a one designated as a whole Housing with a substantially circular cylindrical interior on.
  • the housing 1 is provided with a hydraulic connection 2 at the bottom and points in its opposite the hydraulic connection 2
  • Cover part 3 has a gas filling opening, which is closed by a plug 5 is and makes it possible, by filling with a compressible gas in the adjacent gas space 7 to produce a desired gas pre-filling pressure.
  • a metal bellows 9 which has a circular cylindrical shape owns and is closed at one end by an end plate 11.
  • the outer diameter of the bellows 9 is slightly smaller than the inner diameter of the housing 1.
  • the hydraulic connection 2 contains a double-acting oil valve 15 two valve seats 17 and 18, which are each formed by conical surfaces. With the valve seats 17, 18 act blocking bodies in the form of valve cones 20 and 21 together, which are attached to a valve lifter 23, the attached to the inside of the end plate 11 of the bellows 9 and together with the end plate 11 during its lifting movements in the direction of a longitudinal axis 25 is movable back and forth.
  • the related to the longitudinal axis 25 axial distances between the valve seats 17 and 18 and the associated Valve cones 20 and 21 on the valve lifter 23 are selected so that at a predetermined stroke length by which the end plate 11 in FIG.
  • FIG. 2 In the embodiment of FIG. 2 is in contrast to the embodiment of Fig. 1, the interior of the bellows 9, the cover part 3 of the Housing 1 facing where the gas connection is located.
  • the valve lifter 23 of the oil valve 15 on the Outside of the end plate 11 of the bellows 9 attached The way it works is the same as in the example of Fig. 1, i.e.
  • Valve cone 20, 21 each when lifting the End plate 11 come in both directions along the longitudinal axis 25 Valve cone 20, 21 each when reaching the relevant end position System on the associated valve seats 17 and 18 to the supply or To block the discharge of hydraulic fluid into or from the oil space 8 and the corresponding end positions of the end plate 11 of the bellows 9 define.
  • valve cones 20 and 21 facing each other, and valve seats 17 and 18 are located axially between the valve cones 20 and 21.
  • a pressure gradient leads, as is the case with one would not result in complete locking of the valve 15 on the bellows 9, too a corresponding increase in the contact pressure between valve cones 20 or 21 on the associated valve seats 17 or 18.
  • the axial distances between the valve seats 17, 18 of the valve 15 and the valve cone 20 and 21 are only given as examples. This Distances can be chosen as desired so that there is enough space for the end plate 11 of the bellows 9 in operation a desired working stroke length between the hydropneumatically defined end positions.

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)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Vehicle Body Suspensions (AREA)

Claims (4)

  1. Accumulateur de pression hydropneumatique avec chambre de gaz (7) et chambre d'huile (8), qui sont entourées par un bâti (1), qui comprend un raccord hydraulique (2) du côté du sol, et un soufflet métallique (9) séparant une de ces chambres qui comprend une plaque d'extrémité (11) mobile correspondant aux changements de volume de la chambre du gaz (7) et de la chambre d'huile (8), avec une soupape (15) libérant ou bloquant le courant du fluide hydraulique à partir de et dans la chambre d'huile (8) et avec un poussoir de soupape (23) pilotant la soupape, qui correspond à une augmentation dépassant une valeur maximale prévue du volume de la chambre du gaz (7), qui peut être déplacé par la plaque d'extrémité (11) dans une position de blocage de la soupape (15), moyennant quoi le poussoir de soupape (23) est raccordé de manière fixe à la plaque d'extrémité (11) du soufflet métallique (9) et la soupape (15) peut être bloquée par le mouvement du poussoir de soupape (23) dans deux positions de blocage opposées l'une à l'autre, qui correspondent aux positions terminales de la plaque d'extrémité (11) du soufflet métallique (9) à la valeur maximale prévue ou à une valeur minimale prévue du volume de la chambre du gaz (7), moyennant quoi la soupape (15) comprend deux sièges de soupape (17 et 18) retournés l'un contre l'autre dans une direction axiale correspondant à la direction de mouvement du poussoir de soupape (23) et le poussoir de soupape (23) comprend deux corps de blocage (20 et 21) retournés l'un contre l'autre en direction axiale, qui lors du mouvement du poussoir de soupape (23), agissent ensemble dans l'une ou l'autre des directions et sous forme appariée pour bloquer la soupape (15) et moyennant quoi, les sièges de soupape sont formés comme des surfaces coniques et les corps de blocage (17, 18) comme des cônes de soupape (20, 21), caractérisé en ce que le raccord hydraulique (2) contient la soupape (15) avec ses deux sièges de soupape (17, 18), en ce que les sommets des surfaces coniques des deux sièges de soupape (17, 18) et des deux cônes de soupape (20, 21) sont tournés l'un contre l'autre et en ce que les sièges de soupape (17, 18) sont disposés en direction axiale entre les cônes de soupape (20, 21).
  2. Accumulateur de pression hydropneumatique selon la revendication 1, caractérisé en ce que l'extrémité ouverte du soufflet métallique (9) est prévue, opposée à la plaque d'extrémité (11) sur la soupape (15) pilotée par le courant du fluide hydraulique, de sorte que l'espace intérieur du soufflet métallique (9) forme la chambre d'huile (8), à travers laquelle le poussoir de soupape (23) s'étend jusqu'à sa position de fixation sur le côté intérieur de la plaque d'extrémité (11).
  3. Accumulateur de pression hydropneumatique selon la revendication 1, caractérisé en ce que le soufflet métallique (9) avec sa plaque d'extrémité (11) est retourné vers la soupape (15) pilotée par le courant du fluide hydraulique, de sorte que l'intérieur du soufflet métallique (9) forme la chambre du gaz (7) et que la chambre d'huile (8) se trouve sur le côté extérieur du soufflet métallique (9) et de sa plaque d'extrémité (11), sur laquelle le poussoir de soupape (23) est fixé à l'extérieur.
  4. Accumulateur de pression hydropneumatique selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les distances axiales des sièges de soupape (17, 18) et le corps de blocage (20, 21) prévu sur le poussoir de soupape (23) sont choisis de manière à ce que la plaque d'extrémité (11) reliée au poussoir de soupape (23) soit mobile selon un intervalle de levée désiré entre les positions terminales correspondant à la valeur maximale prévue et à la valeur minimale prévue du volume de la chambre du gaz (7) lorsque la soupape (15) est ouverte.
EP00912582A 1999-05-29 2000-03-10 Accumulateur de pression hydropneumatique Expired - Lifetime EP1181457B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19924807A DE19924807A1 (de) 1999-05-29 1999-05-29 Hydropneumatischer Druckspeicher
DE19924807 1999-05-29
PCT/EP2000/002083 WO2000073663A1 (fr) 1999-05-29 2000-03-10 Accumulateur de pression hydropneumatique

Publications (2)

Publication Number Publication Date
EP1181457A1 EP1181457A1 (fr) 2002-02-27
EP1181457B1 true EP1181457B1 (fr) 2003-06-25

Family

ID=7909702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00912582A Expired - Lifetime EP1181457B1 (fr) 1999-05-29 2000-03-10 Accumulateur de pression hydropneumatique

Country Status (6)

Country Link
US (1) US6527012B1 (fr)
EP (1) EP1181457B1 (fr)
JP (1) JP2003500614A (fr)
AT (1) ATE243813T1 (fr)
DE (2) DE19924807A1 (fr)
WO (1) WO2000073663A1 (fr)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7614568B2 (en) * 2000-08-24 2009-11-10 Microlin, Llc Device employing gas generating cell for facilitating controlled release of fluid into ambient environment
DE19954326B4 (de) * 1999-11-11 2006-06-29 Lucas Varity Gmbh Fahrzeugbremsanlage mit einem Gasdruckspeicher
DE10003648A1 (de) * 2000-01-29 2001-08-09 Hydac Technology Gmbh Hydropneumatischer Druckspeicher
DE10101854A1 (de) * 2000-08-30 2002-06-13 Continental Teves Ag & Co Ohg Druckmittelspeicher
JP2002372001A (ja) * 2001-06-12 2002-12-26 Aisin Seiki Co Ltd アキュームレータ
US7121304B2 (en) * 2001-12-19 2006-10-17 The United States Of America As Represented By The Administrator Of The U.S. Environmental Protection Agency Low permeation hydraulic accumulator
DE10163764C1 (de) * 2001-12-27 2003-08-07 Witzenmann Gmbh Hydropneumatischer Druckspeicher
US6772794B2 (en) * 2002-01-24 2004-08-10 Seguin Carl Variable volume reservoir
JP3906915B2 (ja) * 2002-07-15 2007-04-18 株式会社アドヴィックス 液圧回路
JP2004051005A (ja) * 2002-07-22 2004-02-19 Advics:Kk ブレーキアクチュエータ用圧入部品
DE10233481A1 (de) * 2002-07-24 2004-02-12 Hydraulik-Ring Gmbh Speicher für ein flüssiges Medium
DE10304288A1 (de) * 2002-10-24 2004-05-13 Continental Teves Ag & Co. Ohg Druckmittelspeicher
DE10249750B4 (de) * 2002-10-25 2014-11-06 Cummins Ltd. Ausgleichsvorrichtung zur Aufnahme der Volumenausdehnung von Medien, insbesondere einer Harnstoff-Wasser-Lösung, beim Einfrieren
DE10304999A1 (de) * 2003-02-07 2004-08-19 Carl Freudenberg Kg Metallbalgdruckspeicher
US7108016B2 (en) * 2004-03-08 2006-09-19 The United States Of America As Represented By The Administrator Of The Environmental Protection Agency Lightweight low permeation piston-in-sleeve accumulator
DE102007003724A1 (de) * 2007-01-25 2008-07-31 Hydac Technology Gmbh Druckbehälter, insbesondere Hydrospeicher
US8113390B2 (en) 2007-04-18 2012-02-14 Microlin, Llc Gas generation dispenser apparatus and method for on-demand fluid delivery
DE102008016354A1 (de) * 2007-08-28 2009-05-28 Continental Teves Ag & Co. Ohg Druckspeicher
US8418727B2 (en) * 2008-10-03 2013-04-16 Eaton Corporation Hydraulic accumulator and method of manufacture
US20100176214A1 (en) * 2009-01-13 2010-07-15 Joshi Ashok V Greeting card fragrance delivery system
WO2013103375A2 (fr) 2011-06-03 2013-07-11 Microlin, Llc Dispositif pour délivrance de liquides volatils à un environnement gazeux utilisant une cellule de génération de gaz
WO2015015882A1 (fr) * 2013-07-29 2015-02-05 イーグル工業株式会社 Accumulateur
US10323746B2 (en) * 2015-05-29 2019-06-18 Eagle Industry Co., Ltd. Metal bellows type accumulator
JP6803271B2 (ja) * 2017-03-13 2020-12-23 日本発條株式会社 アキュムレータ

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS567113B2 (fr) * 1972-12-25 1981-02-16
JPS57158154A (en) 1981-03-26 1982-09-29 Nippon Air Brake Co Ltd Liquid pressure control apparatus for anti-skid device
DE8900483U1 (de) * 1989-01-18 1990-05-17 Robert Bosch Gmbh, 7000 Stuttgart Druckbehälter, insbesondere Druckspeicher
JPH08121401A (ja) 1994-10-21 1996-05-14 Nok Corp アキュムレータ
US5638868A (en) * 1996-06-05 1997-06-17 Valcor Engineering Accumulator
DE19706427A1 (de) * 1997-02-19 1998-08-20 Itt Mfg Enterprises Inc Druckmittelspeicher
EP1052412B1 (fr) * 1999-05-12 2005-03-09 NHK Spring Co., Ltd. Accumulateur et son procédé de fabrication

Also Published As

Publication number Publication date
EP1181457A1 (fr) 2002-02-27
WO2000073663A1 (fr) 2000-12-07
US6527012B1 (en) 2003-03-04
ATE243813T1 (de) 2003-07-15
DE50002656D1 (de) 2003-07-31
JP2003500614A (ja) 2003-01-07
DE19924807A1 (de) 2000-12-07

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