EP2773874B1 - Hydrospeicher in form eines balgspeichers - Google Patents

Hydrospeicher in form eines balgspeichers Download PDF

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Publication number
EP2773874B1
EP2773874B1 EP12786824.8A EP12786824A EP2773874B1 EP 2773874 B1 EP2773874 B1 EP 2773874B1 EP 12786824 A EP12786824 A EP 12786824A EP 2773874 B1 EP2773874 B1 EP 2773874B1
Authority
EP
European Patent Office
Prior art keywords
bellows
housing
accumulator
pot
end part
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.)
Active
Application number
EP12786824.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2773874A1 (de
Inventor
Norbert Weber
Herbert Baltes
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
Priority to EP18195927.1A priority Critical patent/EP3453891B1/de
Publication of EP2773874A1 publication Critical patent/EP2773874A1/de
Application granted granted Critical
Publication of EP2773874B1 publication Critical patent/EP2773874B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F15B1/10—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
    • F15B2201/30—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
    • F15B2201/30—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

Definitions

  • the invention relates to a hydraulic accumulator having the features in the preamble of claim 1.
  • Hydraulic accumulator with serving as a movable separator bellows are known and find application in various technical fields, for example in hydraulic brake systems for vehicles and various industrial hydraulic systems.
  • the DE 10 2008 061 221 A1 shows, for example, a bellows, in which a metal bellows is provided as a movable separating element between the gas side and the fluid side.
  • Bellows storage are characterized by several advantageous properties.
  • relatively large changes in volume of the media spaces located in the storage enclosure can be realized.
  • metal bellows relative to the alternating loads, as they can occur during operation, in particular when used as a pulsation damper, relatively robust and have good sealing properties without diffusion losses.
  • metal bellows which are suitable for use in hydraulic accumulators, are proportionate are expensive components, so that the production of Belg Grande is relatively expensive.
  • the DE 102 53 012 A1 discloses a hydraulic accumulator in the form of a bellows accumulator, comprising a storage housing in which the predetermined number of bellows bellows forms a movable separator between the gas side and fluid side, wherein a spacer means is provided, which is arranged within the storage housing and to form an additional media space with the interior the bladder is in fluid communication and adjacent to the bellows, the distancing means being in the form of a pot which is attached with its opening to an open end of the bellows with fluid tight connection.
  • a gas chamber is formed by a cylindrical recess of a piston and by the space between the piston and bellows.
  • the object of the invention is to provide a bellows accumulator which can be produced efficiently and inexpensively. According to the invention, this object is achieved by a bellows memory having the features of claim 1 in its entirety.
  • a significant feature of the invention accordingly is that a minimum volume of the gas side is predetermined by the choice of the depth of the pot, which essentially corresponds to the volume of the pot when the bellows are contracted
  • the storage housing is designed as a tubular body, the storage housing at the lower and upper open tube end each having a GepatiuseabQueryteil in the form of a flat plate which is secured to the storage housing by means of a snap ring and sealed by a sealing member relative to the storage housing
  • the lower housing end part has a fluid port leading to the located in the interior of the storage housing fluid side in that the upper housing end part has a gas filling port
  • the pot is disposed at the movable end of the bellows, the immovable end of which is fixed to the upper housing end part, and the pot is thin-walled.
  • a spacer means disposed within the storage enclosure and in fluid communication with the interior of the bladder adjacent to the bladder to form an additional media space.
  • the desired additional volume can be made available by a correspondingly selected depth of the pot.
  • the arrangement may be such that the pot is held axially immovable in the storage housing and forms at its opening the fixing point for immovable end of the bellows.
  • the pot is arranged as a movable element at the movable end of the bellows, whose immovable end is fixed in this case on the upper housing end part.
  • the interior of the bellows may be associated with the gas side with particular advantage, that is, the volume of the additional media space formed by the pot together with the interior of the bellows defines the volume of the gas side, so that for the operation of the hydraulic accumulator a correspondingly large volume Working gas is available.
  • the immovable end of the bellows may be fixed to the upper housing part located at one end of the accumulator housing, at which the gas filling port for working gas is provided ,
  • embodiments belonging to the invention can at the end of the storage housing, which opposes the end having the gas filling port is to be provided, the lower housing end part, which limits the located on the outside of the bellows fluid side and having a fluid port.
  • a memory housing 1 which has a semi-cylindrical interior and is closed at the overhead in the drawing end 3 to a central opening 5.
  • the storage housing 1 is closed by a housing end part 9, which has a centrally located fluid connection 11 which leads to the fluid side 13 located in the interior.
  • the end part 9 is secured by a snap ring 15 and sealed by a sealing element 17 relative to the storage housing 1.
  • the Gescouseab gleichteil 9 has the shape of a flat plate, wherein at the interior facing the plane an elastomeric ring member 19 in an annular groove is arranged, which projects slightly beyond the plane of the closure part 9.
  • the bellows 21 is open at the top end 27 in the drawing and closed at its other, lower end 29, wherein in the embodiment of Fig. 1 a closing part 31 is provided in the form of a thin plate, which adjoins the last bellows fold 23 on the movable end 29 of the bellows 21.
  • the bellows 21 is connected with its other, open end 27 with a spacer device which has the shape of a pot 33 which is fixed axially immovable in the storage housing 1.
  • the pot 33 is connected at the edge 35 of its opening with the last fold 23 of the bellows 21, so that the interior of the pot 33 is in fluid communication with the interior of the bellows 21 and thus forms an additional volume to the volume of the bellows 21.
  • the opening edge 35 of the pot 33 forms the fixing point for the immovable end 27 of the bellows 21.
  • the sealed via a sealing member 37 on the outside with respect to the storage housing 1 pot 33 has on the bottom of the pot to a gas filling port 39 which extends through the opening 5 of the storage housing. 1 is accessible.
  • Fig. 2 differs in contrast insofar as the overhead in the figure, immovable open end 27 is not connected to the spacer device, but fixed to a housing part 41 is, which is located at the upper end 3 of the storage case 1 and, like the pot 33 of the first embodiment, is sealed by a sealing member 37.
  • a sealing member 37 In a similar manner as in the pot 33 of the first embodiment is located in the housing part 41 in the central part of a gas filling port 39 which is accessible via the opening 5.
  • a gas filling port 39 which is accessible via the opening 5.
  • the not belonging to the invention embodiment of Fig. 3 differs from the example of Fig. 1 only insofar as the storage housing 1 has the shape of a tube which is continuous from the lower end 7 to the upper end 3 on the inside. While in the first embodiment of Fig. 1 the additional volume of the bellows 21 forming pot 33 is supported on the closed upper end 3 of the storage housing 1 is in the example of Fig. 3 the pot 33 is secured at the upper open tube end 3 of the storage housing 1 by means of a snap ring 61.
  • Fig. 4 corresponds to the embodiment of Fig. 2 , except that the storage case 1 is again formed as a tubular body. Accordingly, the housing part 41 connected to the immovable end 27 is axially secured at the open tube end 3 of the storage housing 1 by means of a snap ring 61.
  • the preparation of the storage housing 1 from a tubular body allows a particularly simple, efficient and cost-effective production of Balg Itemss.
  • hydraulic accumulators according to the invention of different specifications can be designed by setting a minimum volume by selecting the depth of the respective pot 33, which essentially corresponds to the volume of the pot 33 when the bellows 21 are contracted.
  • the maximum volume of the other media space is predetermined, which is located on the outside of the contracted bellows 21.
  • FIGS. 1 to 3 shown embodiments of the subject matter of the invention differing features, these serve to explain the in FIG. 4 shown inventive solution.

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)
EP12786824.8A 2011-11-05 2012-10-29 Hydrospeicher in form eines balgspeichers Active EP2773874B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18195927.1A EP3453891B1 (de) 2011-11-05 2012-10-29 Hydrospeicher in form eines balgspeichers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011117752A DE102011117752A1 (de) 2011-11-05 2011-11-05 Hydrospeicher in Form eines Balgspeichers
PCT/EP2012/004512 WO2013064233A1 (de) 2011-11-05 2012-10-29 Hydrospeicher in form eines balgspeichers

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP18195927.1A Division-Into EP3453891B1 (de) 2011-11-05 2012-10-29 Hydrospeicher in form eines balgspeichers
EP18195927.1A Division EP3453891B1 (de) 2011-11-05 2012-10-29 Hydrospeicher in form eines balgspeichers

Publications (2)

Publication Number Publication Date
EP2773874A1 EP2773874A1 (de) 2014-09-10
EP2773874B1 true EP2773874B1 (de) 2018-12-12

Family

ID=47178553

Family Applications (2)

Application Number Title Priority Date Filing Date
EP18195927.1A Active EP3453891B1 (de) 2011-11-05 2012-10-29 Hydrospeicher in form eines balgspeichers
EP12786824.8A Active EP2773874B1 (de) 2011-11-05 2012-10-29 Hydrospeicher in form eines balgspeichers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP18195927.1A Active EP3453891B1 (de) 2011-11-05 2012-10-29 Hydrospeicher in form eines balgspeichers

Country Status (5)

Country Link
US (1) US9644644B2 (ja)
EP (2) EP3453891B1 (ja)
JP (1) JP6224604B2 (ja)
DE (1) DE102011117752A1 (ja)
WO (1) WO2013064233A1 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104613026B (zh) * 2015-01-21 2016-08-24 江苏理工学院 弹簧式蓄能器
DE102015012253A1 (de) * 2015-09-18 2017-03-23 Hydac Technology Gmbh Balgspeicher, insbesondere Pulsationsdämpfer
DE102016014779A1 (de) * 2016-12-10 2018-06-14 Hydac Technology Gmbh Hydropneumatische Kolbenzylinderanordnung
US11320320B2 (en) * 2018-07-25 2022-05-03 Texas Instruments Incorporated Temperature sensor circuit for relative thermal sensing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1425538A1 (de) * 1962-10-17 1969-01-23 Power Aux Ies Ltd Gashydraulischer Drucksammler mit Balgen
EP1384899A2 (de) * 2002-07-24 2004-01-28 Hydraulik-Ring Gmbh Speicher für ein flüssiges Medium

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2411315A (en) * 1944-10-27 1946-11-19 Electrol Inc Metal bellows accumulator
GB603363A (en) 1944-10-27 1948-06-15 Electrol Inc Improvements relating to hydraulic accumulators
US3070127A (en) * 1958-05-28 1962-12-25 Gratzmuller Jean Louis High pressure containers
US3019818A (en) * 1958-11-03 1962-02-06 Wilhelm S Everett Surge dissipating apparatus
US4213545A (en) * 1978-09-20 1980-07-22 Textron, Inc. Expanding bellows for expulsion tank
JPS6340641Y2 (ja) 1980-12-09 1988-10-24
US4691739A (en) * 1986-09-02 1987-09-08 United Aircraft Products, Inc. Bootstrap reservoir
US5133387A (en) * 1990-09-20 1992-07-28 The Aro Corporation Fluid pulsation dampener having spiral grooved bellows
JPH058001U (ja) * 1991-07-10 1993-02-02 エヌオーケー株式会社 アキユムレータ
JP3434303B2 (ja) * 1992-06-08 2003-08-04 日本発条株式会社 アキュムレータ装置
JP3818353B2 (ja) * 1998-09-29 2006-09-06 Ｎｏｋ株式会社 アキュムレータ
JP2006071108A (ja) * 1998-10-15 2006-03-16 Nok Corp 端面シール
JP3812621B2 (ja) * 1998-10-15 2006-08-23 Ｎｏｋ株式会社 端面シール
US6412476B1 (en) * 2000-08-02 2002-07-02 Ford Global Tech., Inc. Fuel system
JP2002276604A (ja) * 2000-08-09 2002-09-25 Nok Corp アキュムレータ
DE10139192A1 (de) * 2001-08-16 2003-03-06 Hydac Technology Gmbh Kolbenspeicher
US20040250866A1 (en) * 2001-10-16 2004-12-16 Continental Teves Ag & Co. Ohg Pressure medium reservoir
DE10253012A1 (de) * 2002-04-26 2003-11-06 Continental Teves Ag & Co Ohg Druckmittelspeicher
JP2005155785A (ja) * 2003-11-26 2005-06-16 Nok Corp アキュムレータ
DE102004004341A1 (de) * 2004-01-29 2005-08-18 Hydac Technology Gmbh Druckspeicher, insbesondere Pulsationsdämpfer
DE102006025552B4 (de) 2006-06-01 2008-07-31 Hydac Technology Gmbh Hydropneumatischer Druckspeicher
DE102008061221A1 (de) 2008-12-09 2010-06-10 Hydac Technology Gmbh Hydrospeicher, insbesondere Balgspeicher

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1425538A1 (de) * 1962-10-17 1969-01-23 Power Aux Ies Ltd Gashydraulischer Drucksammler mit Balgen
EP1384899A2 (de) * 2002-07-24 2004-01-28 Hydraulik-Ring Gmbh Speicher für ein flüssiges Medium

Also Published As

Publication number Publication date
WO2013064233A1 (de) 2013-05-10
DE102011117752A1 (de) 2013-05-08
US9644644B2 (en) 2017-05-09
JP2014532847A (ja) 2014-12-08
EP3453891B1 (de) 2021-06-16
EP3453891A1 (de) 2019-03-13
US20140230939A1 (en) 2014-08-21
EP2773874A1 (de) 2014-09-10
JP6224604B2 (ja) 2017-11-01

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