EP1987254B1 - Accumulateur de pression, en particulier amortisseur de pulsations - Google Patents

Accumulateur de pression, en particulier amortisseur de pulsations Download PDF

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Publication number
EP1987254B1
EP1987254B1 EP06818509A EP06818509A EP1987254B1 EP 1987254 B1 EP1987254 B1 EP 1987254B1 EP 06818509 A EP06818509 A EP 06818509A EP 06818509 A EP06818509 A EP 06818509A EP 1987254 B1 EP1987254 B1 EP 1987254B1
Authority
EP
European Patent Office
Prior art keywords
pressure accumulator
separating element
fluid
piston part
accumulator according
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.)
Not-in-force
Application number
EP06818509A
Other languages
German (de)
English (en)
Other versions
EP1987254A1 (fr
Inventor
Markus Lehnert
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
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Hydac Technology GmbH
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Filing date
Publication date
Application filed by Hydac Technology GmbH filed Critical Hydac Technology GmbH
Publication of EP1987254A1 publication Critical patent/EP1987254A1/fr
Application granted granted Critical
Publication of EP1987254B1 publication Critical patent/EP1987254B1/fr
Not-in-force 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
    • 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
    • F15B1/021—Installations or systems with accumulators used for damping
    • 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
    • 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
    • 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

Definitions

  • Pressure accumulators are known, cf. DE 10 2004 004 341 A1 , Such accumulators are primarily used for damping pressure fluctuations in hydraulic systems in order to protect measuring and control devices, filters and other components integrated in the system from harmful pulsations.
  • a preferred field of use is the use as a pulsation damper in the injection system of internal combustion engines, especially large diesel engines on ships or in combined heat and power plants.
  • pressure fluctuations occur in both the fuel supply system and in the fuel return system, the frequency and severity of the pulsations being determined by the sequence of injection processes, the removal of fuel from the system, the compression, the injection by means of high-pressure injection pumps and the reopening connect to the system.
  • the invention has for its object to provide a pressure accumulator, which is characterized despite a compact design by a particularly good damping effect.
  • the choice of the depth of the "pot” allows an adjustment of the volume ratio of gas space to fluid space according to the respective working conditions.
  • the length of the metal bellows can be chosen to be sufficiently long, even in the case of a desirably small volume of the gas space, so that it has a multiplicity of folds. This ensures that the bellows is in the range of tolerable material stresses in the execution of alternating movements, so that he can perform the largest possible stroke with the largest possible number of repetitions, without the operational safety would be compromised.
  • the stopper may also be constituted by a structure whose structural elements are selected with a view to minimizing the restriction of the flow path caused by them.
  • a further retaining ring fixed on the inner wall of the tubular body and at least one further fastening rod spanning the interior of the retaining ring can be provided.
  • the two storage lids 11 have only one opening, namely inflow opening 15 and outflow opening 17, a large opening cross-section can be provided, so that large flow rates can be achieved.
  • the inner diameter of the tubular body 1 and the outer diameter of the metal bellows 21 are selected such that a sufficiently large annular space 51 is available as part of the flow path belonging to the fluid space 33.
  • the components of the support structure for the cover 27 are chosen so that no significant impediment to the flow path is given, d. H.
  • Both the retaining ring 35 and the mounting rod 39 are, as can be seen from the figures, slim, so that the outer edge of the lid 27 can be flowed around relatively unhindered.
  • the storage housing is formed by a simple tubular body 1 and the housing closure by means of the same trained storage lid 11, results in a particularly simple and inexpensive production.
  • the damper unit 19 can be prefabricated as a unit that can be used as a whole in the tubular body 1 and fixed by means of snap rings 37, 47, there is also a particularly simple installation.
  • the prefabricated as a unit damper unit exists in particular from the actual metal bellows 21, as well as the piston member 31 and the retaining ring 35th

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)

Claims (12)

  1. Accumulateur de pression
    - comprenant un corps (1) d'accumulateur, qui définit un axe (3) longitudinal et qui a une ouverture (15) d'entrée et une ouverture (17) de sortie pour un fluide,
    - dans lequel deux espaces de travail, à savoir un espace (23) pour du gaz pour un gaz de travail et un espace (33) pour du fluide, sont séparés l'un de l'autre à l'intérieur du corps (1) de l'accumulateur d'une manière étanche au fluide par un séparateur (21) de type à soufflet,
    - dans lequel le séparateur (21) est relié à l'une de ses extrémités (25) à un couvercle (27) formant une fermeture, fixée au corps, de l'espace (23) pour du gaz et à son autre extrémité (29) à une partie (31) de piston mobile axialement dans le corps (1) de l'accumulateur, qui forme une fermeture mobile de l'espace (23) pour du gaz, de sorte que des mouvements de travail de la partie (31) de piston entraînent des variations de volume des espaces de travail voisins du séparateur (21),
    - dans lequel l'ouverture (15) d'entrée et l'ouverture (17) de sortie sont prévues respectivement à l'une ou à l'autre des extrémités, opposées dans la direction axiale, du corps (1) de l'accumulateur,
    - dans lequel le corps de l'accumulateur est un corps (1) tubulaire cylindrique de section circulaire, dans lequel le séparateur (21) est reçu concentriquement en formant un espace (51) annulaire entre la paroi (5) intérieure du corps (1) tubulaire et la face extérieure du séparateur (21),
    - caractérisé en ce que le corps (1) de l'accumulateur peut être parcouru par du fluide dans sa direction longitudinale et dans la direction du déplacement de travail de la partie (31) de piston,
    - en ce que l'espace (51) annulaire forme une partie d'un trajet d'écoulement du fluide entre l'ouverture (15) d'entrée et l'ouverture (17) de sortie,
    - en ce que le couvercle (27) du séparateur (21) est immobilisé sur la paroi (5) intérieure du corps (1) tubulaire par une structure (35, 39) portante, dont les éléments sont conçus en vue de minimiser un étranglement du trajet du courant entre l'espace (51) annulaire et l'ouverture (17) de sortie voisine, et
    - en ce que la structure portante a un anneau (35) de maintien, qui est immobilisé sur la paroi (5) intérieure du corps (1) tubulaire et auquel le couvercle (27) du séparateur (21) est relié par des barres (39) de fixation s'étendant du bord latéral du couvercle (27) vers l'anneau (35) de maintien.
  2. Accumulateur de pression suivant la revendication 1, caractérisé en ce qu'il est prévu, comme séparateur, un soufflet (21) métallique ayant une pluralité de plis ou de paires de membranes disposés les uns au dessus des autres, soufflet qui délimite dans son espace intérieur l'espace (23) pour du gaz entre le couvercle (27) et la partie (31) de piston.
  3. Accumulateur de pression suivant la revendication 2, caractérisé en ce que la partie (31) de piston a sur son côté voisin de l'espace (33) pour du fluide, un espace vide agrandissant le volume de l'espace pour du fluide.
  4. Accumulateur de pression suivant la revendication 3, caractérisé en ce que la partie (31) de piston est constituée en forme de pot en ayant une paroi (41) latérale en forme de cylindre de section circulaire, paroi qui s'étend dans l'espace intérieur cylindrique de section circulaire du soufflet (21) métallique le long du côté intérieur de ses plis à des profondeurs de pénétration différentes correspondant aux mouvements de travail de la partie (31) de piston.
  5. Accumulateur de pression suivant l'une des revendications précédentes, caractérisé en ce que le diamètre intérieur du corps (1) tubulaire est choisi plus grand que le diamètre extérieur du séparateur (21), de manière à ce que la section transversale libre du trajet d'écoulement formé par l'espace (51) annulaire soit supérieure ou égale à la section transversale libre de l'ouverture (15) d'entrée et de l'ouverture (17) de sortie.
  6. Accumulateur de pression suivant l'une des revendications précédentes, caractérisé en ce qu'un dispositif (43, 45) de butée est prévu pour limiter le déplacement de travail de la partie (31) de piston qui agrandit le volume de l'espace (23) pour du gaz.
  7. Accumulateur de pression suivant la revendication 6, caractérisé en ce que le dispositif (43, 45) de butée est formé par une structure, dont les éléments sont choisis en vue de minimiser l'étranglement qu'ils provoquent du trajet du courant entre l'ouverture (15) d'entrée et l'espace (51) annulaire.
  8. Accumulateur de pression suivant la revendication 6 ou 7, caractérisé en ce que le dispositif de butée est formé par un autre anneau (45) de maintien, immobilisé sur la paroi (5) intérieure du corps (1) tubulaire et par au moins une autre barre (43) de fixation, qui s'étend entre des parties sensiblement opposées l'une à l'autre de l'autre anneau (45) de maintien.
  9. Accumulateur de pression suivant l'une des revendications précédentes, caractérisé en ce que l'espace (23) pour du gaz est, supplémentairement à un remplissage par du gaz de travail, empli d'un alcool.
  10. Accumulateur de pression suivant la revendication 9, caractérisé en ce que l'alcool est de l'éthylène glycol.
  11. Accumulateur de pression suivant l'une des revendications précédentes, caractérisé en ce que l'espace (23) pour du gaz et l'espace (33) pour du fluide sont séparés l'un de l'autre d'une manière étanche au gaz par le séparateur (21).
  12. Accumulateur de pression suivant l'une des revendications précédentes, caractérisé en ce que l'accumulateur de pression est un amortisseur de pulsations.
EP06818509A 2006-02-22 2006-11-14 Accumulateur de pression, en particulier amortisseur de pulsations Not-in-force EP1987254B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006008175A DE102006008175A1 (de) 2006-02-22 2006-02-22 Druckspeicher, insbesondere Pulsationsdämpfer
PCT/EP2006/010885 WO2007098795A1 (fr) 2006-02-22 2006-11-14 Accumulateur de pression, en particulier amortisseur de pulsations

Publications (2)

Publication Number Publication Date
EP1987254A1 EP1987254A1 (fr) 2008-11-05
EP1987254B1 true EP1987254B1 (fr) 2012-09-12

Family

ID=37672249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06818509A Not-in-force EP1987254B1 (fr) 2006-02-22 2006-11-14 Accumulateur de pression, en particulier amortisseur de pulsations

Country Status (8)

Country Link
US (1) US8176940B2 (fr)
EP (1) EP1987254B1 (fr)
JP (1) JP5074426B2 (fr)
KR (1) KR101304186B1 (fr)
CN (1) CN101384824B (fr)
DE (1) DE102006008175A1 (fr)
DK (1) DK1987254T3 (fr)
WO (1) WO2007098795A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2383785C1 (ru) * 2008-10-09 2010-03-10 Александр Анатольевич Строганов Гидропневматический аккумулятор со сжимаемым регенератором
CN102248489B (zh) * 2010-05-21 2013-05-29 中芯国际集成电路制造(上海)有限公司 一种脉动缓冲器及研磨液供应系统
EP2610881B1 (fr) * 2011-12-28 2014-04-30 Siemens Aktiengesellschaft Compensateur de pression pour dispositif sous-marin
US9677519B2 (en) * 2013-08-27 2017-06-13 Kia Motors Corporation Device for decreasing fuel pulsation of LPG vehicle
DE102014010006A1 (de) * 2014-07-05 2016-01-07 Hydac Technology Gmbh Hydropneumatischer Druckspeicher
CN104265700A (zh) * 2014-09-15 2015-01-07 邢宇 用金属波纹管式蓄压器代替胆式蓄压器和活塞式蓄压器
EP3306109B1 (fr) * 2015-05-29 2022-04-27 Eagle Industry Co., Ltd. Accumulateur de type à soufflet métallique
DE102016003153A1 (de) * 2016-03-15 2017-09-21 Hydac Technology Gmbh Speichervorrichtung und hydropneumatische Federung
FR3060533B1 (fr) * 2016-12-19 2025-04-11 Safran Aircraft Engines Accumulateur sur une ligne de carburant d'aeronef
CN107939834A (zh) * 2017-11-16 2018-04-20 中国航空工业集团公司北京航空精密机械研究所 一种抑制压力波动的超精密机床液压系统
USD893678S1 (en) 2018-02-05 2020-08-18 Blacoh Fluid Controls, Inc. Valve
US11346374B2 (en) * 2020-09-08 2022-05-31 Blacoh Fluid Controls, Inc. Fluid pulsation dampeners
US11549523B2 (en) 2021-04-27 2023-01-10 Blacoh Fluid Controls, Inc. Automatic fluid pump inlet stabilizers and vacuum regulators
CN115773192B (zh) * 2022-12-21 2024-10-15 北京航空航天大学 蓄压器以及火箭发动机输送系统
CN117536733B (zh) * 2023-10-19 2024-08-13 北京天兵科技有限公司 一种大型液体运载火箭pogo抑制系统及输送系统
CN117869117B (zh) * 2023-12-26 2024-07-30 北京天兵科技有限公司 一种蓄压器及运载火箭的推进剂输送系统

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US445917A (en) * 1891-02-03 Accumulator
US3424202A (en) * 1966-09-08 1969-01-28 Calumet & Hecla Dual bellows compensator
JPS5059811A (fr) 1973-09-28 1975-05-23
JPS547615A (en) 1977-06-20 1979-01-20 Kenei Terada Pressure baffler
JPH02225802A (ja) * 1989-02-27 1990-09-07 Nhk Spring Co Ltd アキュムレータ
JPH02266101A (ja) * 1989-04-05 1990-10-30 Nhk Spring Co Ltd アキュムレータ
US5205326A (en) * 1991-08-23 1993-04-27 Hydraulic Power Systems, Inc. Pressure response type pulsation damper noise attenuator and accumulator
DE29507077U1 (de) * 1995-04-27 1995-06-22 GEA Finnah GmbH, 48683 Ahaus Pulsationsdämpfer für Rohrleitungen für strömende Medien
DE102004004341A1 (de) * 2004-01-29 2005-08-18 Hydac Technology Gmbh Druckspeicher, insbesondere Pulsationsdämpfer
JP2006194367A (ja) * 2005-01-14 2006-07-27 Nok Corp 水撃防止装置

Also Published As

Publication number Publication date
WO2007098795A1 (fr) 2007-09-07
DE102006008175A1 (de) 2007-08-23
KR20090035464A (ko) 2009-04-09
KR101304186B1 (ko) 2013-09-06
CN101384824B (zh) 2011-01-12
US8176940B2 (en) 2012-05-15
DK1987254T3 (da) 2012-10-01
JP5074426B2 (ja) 2012-11-14
JP2009527706A (ja) 2009-07-30
CN101384824A (zh) 2009-03-11
EP1987254A1 (fr) 2008-11-05
US20100307146A1 (en) 2010-12-09

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