EP3453891B1 - Hydrospeicher in form eines balgspeichers - Google Patents

Hydrospeicher in form eines balgspeichers Download PDF

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Publication number
EP3453891B1
EP3453891B1 EP18195927.1A EP18195927A EP3453891B1 EP 3453891 B1 EP3453891 B1 EP 3453891B1 EP 18195927 A EP18195927 A EP 18195927A EP 3453891 B1 EP3453891 B1 EP 3453891B1
Authority
EP
European Patent Office
Prior art keywords
bellows
housing
accumulator
cup
volume
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
EP18195927.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3453891A1 (de
Inventor
Herbert Baltes
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 EP3453891A1 publication Critical patent/EP3453891A1/de
Application granted granted Critical
Publication of EP3453891B1 publication Critical patent/EP3453891B1/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

  • Bellows accumulators are characterized by several advantageous properties. Thus, by pulling out and contracting the bellows, relatively large changes in volume of the media spaces located in the storage housing can be realized.
  • Metal bellows provided as a movable separating element are also relatively robust with regard to the alternating loads that can occur during operation, in particular when used as a pulsation damper, and have good sealing properties without diffusion losses. However, these properties are opposed by the fact that metal bellows, which are suitable for use in hydraulic accumulators, are proportionate are expensive components, so that the production of the bellows accumulator is relatively cost-intensive.
  • the object of the invention is to provide a bellows accumulator which can be produced efficiently and inexpensively.
  • the spacer device has the shape of a pot, the opening of which is attached to an open end of the bellows with a fluid-tight connection.
  • the desired additional volume can be made available in a simple manner by means of a correspondingly selected depth of the pot.
  • the arrangement can be such that the pot is held axially immovable in the storage housing and forms the fixing point for the immovable end of the bellows at its opening.
  • the pot can be arranged as a movable element at the movable end of the bellows, the immovable end of which can in this case be fixed on the storage housing.
  • the interior of the bellows can be assigned to the gas side with particular advantage, so that 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 a correspondingly large volume is required for the operation of the hydraulic accumulator Working gas is available.
  • its bottom is located at one end of the storage housing and has a gas filling connection for a working gas.
  • the immovable end of the bellows can be fixed to a housing part located at one end of the storage housing on which a gas filling connection for working gas is provided.
  • the housing closure part can particularly advantageously form a stop which limits movements of the bellows to a stroke which corresponds to a predetermined maximum volume made up of the volume of the interior of the bellows and the additional volume of the pot.
  • the exemplary embodiments shown have a storage housing 1 which has a semi-cylindrical interior space and is closed at the top end 3 in the drawing except for a central opening 5.
  • the storage housing 1 is closed by a housing closure part 9 which has a centrally located fluid connection 11 which leads to the fluid side 13 located in the interior.
  • the closing part 9 is secured by a snap ring 15 and is sealed off from the storage housing 1 by means of a sealing element 17.
  • the housing closure part 9 has the shape of a flat plate, an elastomeric ring element 19 being arranged in an annular groove on the plane facing the interior space, which protrudes 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 Fig. 1 a closing part 31 is provided in the form of a thin plate, which adjoins the last bellows fold 23 at the movable end 29 of the bellows 21.
  • the bellows 21 is connected with its other, open end 27 to a spacer device which has the shape of a pot 33 in the storage housing 1 is fixed axially immovable.
  • the pot 33 is connected to the last fold 23 of the bellows 21 so that the interior of the pot 33 is in fluid connection 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 pot 33 which is sealed on the outside with respect to the storage housing 1 via a sealing element 37, has a gas filling connection 39 on the pot bottom, which is connected via the opening 5 of the storage housing 1 is accessible.
  • Fig. 2 differs in that the immovable open end 27 at the top in the figure is not connected to the spacer, but is fixed to a housing part 41 which is located at the upper end 3 of the storage housing 1 and, like the pot 33 of the first embodiment , is sealed by means of a sealing element 37.
  • a gas filling connection 39 which is accessible via the opening 5, is also located in the housing part 41 in the central part.
  • a pot 33 serving as a spacer device is not attached to the immovable end 27, but to the movable end 29 of the bellows, the pot 33 being thin-walled as a component movable with the bellows 21 and with its pot bottom 43 to limit the stroke at the maximum stroke of the bellows 21 comes into contact with the flexible ring element 19 of the housing closure part 9.
  • 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 on the inside from the lower end 7 to the upper end 3. While in the first embodiment of Fig. 1 the pot 33, which forms the additional volume of the bellows 21, is supported on the closed upper end 3 of the storage housing 1, in the example of FIG Fig. 3 the pot 33 is secured at the upper open pipe end 3 of the storage housing 1 by means of a snap ring 61.
  • Fig. 4 corresponds to the embodiment of Fig. 2 , apart from the fact that the storage housing 1 is again designed as a tubular body. Accordingly, the housing part 41 connected to the immovable end 27 is axially secured at the open pipe end 3 of the storage housing 1 by means of a snap ring 61.
  • the production of the storage housing 1 from a tubular body enables a particularly simple, efficient and inexpensive production of the bellows storage.
  • hydraulic accumulators according to the invention of different specifications can be designed in that a minimum volume is specified by selecting the depth of the respective pot 33, which when the bellows 21 is contracted essentially corresponds to the volume of the pot 33.
  • the maximum volume of the other media space that is located on the outside of the contracted bellows 21 is predetermined.

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)
EP18195927.1A 2011-11-05 2012-10-29 Hydrospeicher in form eines balgspeichers Active EP3453891B1 (de)

Applications Claiming Priority (3)

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

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
PCT/EP2012/004512 Previously-Filed-Application WO2013064233A1 (de) 2011-11-05 2012-10-29 Hydrospeicher in form eines balgspeichers
EP12786824.8A Division EP2773874B1 (de) 2011-11-05 2012-10-29 Hydrospeicher in form eines balgspeichers
EP12786824.8A Division-Into EP2773874B1 (de) 2011-11-05 2012-10-29 Hydrospeicher in form eines balgspeichers

Publications (2)

Publication Number Publication Date
EP3453891A1 EP3453891A1 (de) 2019-03-13
EP3453891B1 true EP3453891B1 (de) 2021-06-16

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 After (1)

Application Number Title Priority Date Filing Date
EP12786824.8A Active EP2773874B1 (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
CN106194860B (zh) * 2015-01-21 2017-09-29 江苏理工学院 电磁力辅助补偿式蓄能器
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
JPH05340401A (ja) * 1992-06-08 1993-12-21 Nhk Spring Co Ltd アキュムレータ装置
WO2003016723A2 (de) * 2001-08-16 2003-02-27 Hydac Technology Gmbh Kolbenspeicher

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
GB1047983A (en) * 1962-10-17 1966-11-09 Power Aux Ies Ltd Improvements in or relating to bellows-type gas-hydraulic accumulators
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
JP3818353B2 (ja) * 1998-09-29 2006-09-06 Ｎｏｋ株式会社 アキュムレータ
JP3812621B2 (ja) * 1998-10-15 2006-08-23 Ｎｏｋ株式会社 端面シール
JP2006071108A (ja) * 1998-10-15 2006-03-16 Nok Corp 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
EP1438515A1 (de) * 2001-10-16 2004-07-21 Continental Teves AG & Co. oHG Druckmittelspeicher
DE10253012A1 (de) * 2002-04-26 2003-11-06 Continental Teves Ag & Co Ohg Druckmittelspeicher
DE10233481A1 (de) * 2002-07-24 2004-02-12 Hydraulik-Ring Gmbh Speicher für ein flüssiges Medium
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
JPH05340401A (ja) * 1992-06-08 1993-12-21 Nhk Spring Co Ltd アキュムレータ装置
WO2003016723A2 (de) * 2001-08-16 2003-02-27 Hydac Technology Gmbh Kolbenspeicher

Also Published As

Publication number Publication date
WO2013064233A1 (de) 2013-05-10
EP3453891A1 (de) 2019-03-13
JP6224604B2 (ja) 2017-11-01
EP2773874A1 (de) 2014-09-10
DE102011117752A1 (de) 2013-05-08
US9644644B2 (en) 2017-05-09
US20140230939A1 (en) 2014-08-21
JP2014532847A (ja) 2014-12-08
EP2773874B1 (de) 2018-12-12

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