EP1133641B1 - Druckmittelspeicher - Google Patents

Druckmittelspeicher Download PDF

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Publication number
EP1133641B1
EP1133641B1 EP99956001A EP99956001A EP1133641B1 EP 1133641 B1 EP1133641 B1 EP 1133641B1 EP 99956001 A EP99956001 A EP 99956001A EP 99956001 A EP99956001 A EP 99956001A EP 1133641 B1 EP1133641 B1 EP 1133641B1
Authority
EP
European Patent Office
Prior art keywords
pressure fluid
fluid accumulator
bore
accumulator
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
EP99956001A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1133641A1 (de
Inventor
Stefan Drumm
Christian Albrich Von Albrichsfeld
Ronald Bayer
Peter Rieth
Manfred Rüffer
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.)
Continental Teves AG and Co OHG
Original Assignee
Continental Teves AG and Co OHG
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
Priority claimed from DE19906800A external-priority patent/DE19906800A1/de
Application filed by Continental Teves AG and Co OHG filed Critical Continental Teves AG and Co OHG
Publication of EP1133641A1 publication Critical patent/EP1133641A1/de
Application granted granted Critical
Publication of EP1133641B1 publication Critical patent/EP1133641B1/de
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
    • F15B1/10—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
    • F15B1/027—Installations or systems with accumulators having accumulator charging devices
    • F15B1/033—Installations or systems with accumulators having accumulator charging devices with electrical control 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
    • 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
    • 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
    • F15B2201/20—Accumulator cushioning means
    • F15B2201/21—Accumulator cushioning means using springs
    • 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
    • F15B2201/3158—Guides for the flexible separating means, e.g. for a collapsed bladder
    • 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
    • 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
    • F15B2201/50—Monitoring, detection and testing means for accumulators
    • F15B2201/515—Position detection for separating means

Definitions

  • the invention relates to a pressure fluid accumulator with a Housing, the interior of which is formed by a formed by a metallic bellows media separation element in is divided into two chambers, the first chamber with a Gas and the second chamber with a liquid pressure medium ge fills and where in a hydraulic connection a floor valve is provided, whose closing body by the media separating element is actuated and that is a filling of the two ten chamber with the pressure medium allows and completely emptying the second chamber prevented.
  • Such a pressure fluid store is known from the utility model DE 8900483 U or international patent application WO 98/37329.
  • the Media separation element is in the previously known Accumulator through a metallic bellows formed, with which the hydraulic connection facing End face of the closing body of the bottom valve means a spring is connected.
  • To effectively shut off the To achieve hydraulic connection is the Closing body with a rubber-elastic sealing element Mistake.
  • This object is achieved in that the Closing body through the metallic bellows in one Able to bring in which he has the function of a hydraulic piston that closes the hydraulic connection.
  • This is achieved by that the closing body when approaching the Bellows end face to the ground in the hydraulic Flow is introduced without obstructing it, then, floating in the hydraulic flow, to the plant to come to a stop, causing the hydraulic connection in the form of a locked hydraulic piston is closed.
  • the closing body in a hydraulic connection provided bore and with at least one Sealing element is provided, which against the wall of the Bore seals.
  • the bore is preferably as Stepped bore formed, wherein the sealing element with the Section of smaller diameter of the bore interacts.
  • the illustrated in Fig. 1 first embodiment of Inventive pressure medium reservoir has a housing 1, the interior thereof by means of a media separation element 2 in two pressure chambers or chambers 3, 4 is divided.
  • the Media separation element 2 is doing by formed a thin-walled metallic bellows, the on the one hand pressure-tight with a housing. 1 closing lid 15 is connected and on the other is closed by a plate 16.
  • the interior of the Bellows 2 forms the first chamber 3, which has a in the Cover 15 provided, not shown Golfanschluß with a generally high-pressure gas filled can be.
  • a formed hydraulic connection 5 in which a Bottom valve 6 is arranged, the closing body 7 in the second chamber 4 protrudes.
  • the bottom valve 6 is here Preferably designed such that on the one hand a Filling the second chamber 4 with a pressurized standing liquid pressure medium, for example a Brake fluid, allows and on the other hand a completely emptying the second chamber 4 prevented.
  • a Compression spring 17, between the lid 15 and the previously mentioned plate 16 is clamped and thus the Bellows 2 in the direction of the bottom valve 6 too biases. This ensures that in the second chamber 4 prevailing hydraulic pressure getting higher is as the prevailing in the first chamber 3 gas pressure.
  • a centering of the bellows 2 in the housing. 1 to reach a slotted ring 18 is provided, the Bellows the bellows 2 and in the assembled state at the Wall of the housing 1 is applied.
  • the with a filling or outlet opening 13 provided hydraulic Port 5 has a bore 10 which serves as a stepped bore is formed and a first section 11 larger Diameter and a second section 12 smaller Diameter has.
  • the transition area between the two Sections 11, 12 is preferably by a conical Ring surface 9 formed.
  • the aforementioned closing body 7 is guided, wherein the Guide in the first bore section 11 a with at least a passage 20 provided collar 19 is provided during the guide in the second bore section 12 a second collar 21 serves, the more radial flow channels 22 has.
  • the flow channels 22 together with the previously mentioned passage 20 a flow connection between the second chamber 4 and the filling or Outlet opening 13 of the hydraulic connection 5.
  • a sealing sleeve In the in Fig. 2 shown opened state of the bottom valve. 6 is the first collar 19 under bias of a compression spring 14 at a stop 24 at.
  • the closing of the bottom valve 6 takes place in two phases, which are shown in Fig. 2a and 2b.
  • he begins Closing 7, the function of a hydraulic Piston to meet and by the in the chamber. 4 prevailing residual pressure further down.
  • the bottom valve 6 Opened the bottom valve 6 is characterized in that liquid Pressure medium from the outside in the invention Pressure fluid accumulator 1 is pumped.
  • the boost pressure is the in the chamber 4 prevailing residual pressure or internal pressure exceeds, works the outer lip of the Sealing sleeve 8 um and leaves over from the wall of the Bore section 12 limited sealing gap pressure medium flow, wherein the compression spring 14 at the same time Closing 7 pushes back. This dissolves the Sealing collar 8 or its outer sealing lip of the Bore wall and gives the way for the incoming Pressure medium free.
  • the second embodiment of Subject of the invention is in the gas-filled chamber 3 a sensor device 30 for sensing the movement of the Media separation element 2 is provided.
  • the sensor device 30, preferably as an inductive displacement sensor is formed, provides an independently manageable Assembly is in an opening provided in the lid 15 opening can be used. It has a two-part Sensor housing 31, in which essentially a coil 32nd and a cooperating with the coil 32 metallic Pin 33 are arranged.
  • the two-part sensor housing 31 in this case preferably consists of a telescope into each other guided housing parts 34, 35, wherein the opening in the Cover 15 facing part 34, the coil 32 receives while the second housing part 34 partially encompassing second Housing part 35 under the bias of a compression spring 36 is supported on the plate 16.
  • the inductance of the coil 32nd be determined, depending on the Immersion depth of the metallic pin 33 in the of the Coil 32 surrounded cylindrical space 37 changes. From the measured inductance is determined with the help of in the Transmitter stored characteristics the position of the Plate 16 and from this the filling state of the invention Pressure fluid accumulator determined. As part of the Erfindungsgedank still can not shown be provided electrical measuring means, in addition to Measurement of the inductance of the measurement of the electric Resistance of the coil 32 are used and their measured value for Determination of the storage temperature is used.
  • Fig. 3 is also a modified embodiment of Bottom valve 6 is shown, the closing body 40 with two successively arranged sealing elements 41, 42 provided is to reduce the probability of default.
  • the individual Phases of the closing process act again trained as sealing collars Sealing elements 41, 42 with two separate Sections 43, 44 one in the hydraulic connection. 5 trained, unspecified, multi-graded Bore together.
  • the closing paths of the two sealing elements 41, 42 are preferably designed such that the Sealing elements 41, 42 offset in time to the associated Bore sections 43, 44 come to rest.
  • Fig. 4b brightens, comes when moving the closing body 40 by the aforementioned plate 16th first, the outer sealing lip of the first sealing sleeve 41 in contact with a first conical annular surface 45, to which the associated bore portion 43 connects.
  • the second sealing collar 42 is still at a distance of a second conical annular surface 46 assigned to it, see above that the first sealing sleeve 41 with the by a in the hydraulic port 5 formed flow channel 47th flowing pressure medium is acted upon by the Effect of the closing body 40 continues toward the bottom stop is moved.
  • the second sealing collar 42 initially in contact with its conical Ring surface 46 to finally in the closed position (Fig. 4c) against the associated bore portion 44th seal.
  • FIG Bottom valve In a third embodiment of the invention shown in FIG Bottom valve are in a preferably cylindrical Guide member 26 flow cross sections 27 formed, the to the outside by a closing body mentioned above forming sleeve 25 are limited. In the direction of actuation the bottom valve behind the flow cross sections 27th there is a sealing collar 28, which, after being of the sleeve 25 has been run over, seals against this, so that no flow of the pressure medium is possible.
  • bottom valves easy interpreted and equally simple and inexpensive are to produce.
  • the bottom valves can as prefabricated, tested modules in metal bellows hydraulic accumulator to be built in.
  • the sealing elements or sleeves are only pressurized in situations in which the sealing gap has assumed its final contour and does not change anymore. Through this functional principle will damage the sealing elements by shearing of parts of the sealing elements on metallic edges locked out.
  • Another advantage is that next to the opened also the closed state of Bottom valve is mechanically stable. This has the consequence that caused by thermal expansion transitions between an open and a closed state of the Bottom valve are excluded. In particular, at Store the accumulator when the outside applied pressure is zero, no liquid escape.

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)
EP99956001A 1998-11-25 1999-11-16 Druckmittelspeicher Expired - Lifetime EP1133641B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19854408 1998-11-25
DE19854408 1998-11-25
DE19906800A DE19906800A1 (de) 1998-11-25 1999-02-18 Druckmittelspeicher
DE19906800 1999-02-18
PCT/EP1999/008811 WO2000031420A1 (de) 1998-11-25 1999-11-16 Druckmittelspeicher

Publications (2)

Publication Number Publication Date
EP1133641A1 EP1133641A1 (de) 2001-09-19
EP1133641B1 true EP1133641B1 (de) 2004-06-09

Family

ID=26050372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99956001A Expired - Lifetime EP1133641B1 (de) 1998-11-25 1999-11-16 Druckmittelspeicher

Country Status (4)

Country Link
US (1) US6478051B1 (sl)
EP (1) EP1133641B1 (sl)
JP (1) JP5039254B2 (sl)
WO (1) WO2000031420A1 (sl)

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DE50110282D1 (de) 2000-10-11 2006-08-03 Continental Teves Ag & Co Ohg Verfahren zum befüllen eines druckmittelspeichers sowie vorrichtung zur durchführung des verfahrens
DE10139811A1 (de) * 2000-10-11 2002-06-27 Continental Teves Ag & Co Ohg Verfahren zum Befüllen eines Durckmittelspeichers sowie Vorrichtung zur Durchführung des Verfahrens
DE10051580A1 (de) * 2000-10-18 2002-05-08 Hydac Technology Gmbh Hydrospeicher, insbesondere Blasenspeicher
DE10057746A1 (de) * 2000-11-16 2002-06-06 Hydac Technology Gmbh Hydrospeicher
DE10100315C1 (de) * 2001-01-05 2002-08-01 Bosch Gmbh Robert Druckmittelspeicher für Fahrzeugbremsanlagen
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DE10207598A1 (de) * 2001-02-23 2002-11-07 Continental Teves Ag & Co Ohg Druckmittelspeicher
DE10142038A1 (de) * 2001-02-23 2002-09-05 Continental Teves Ag & Co Ohg Druckmittelspeicher
DE10137988A1 (de) * 2001-08-02 2003-02-13 Continental Teves Ag & Co Ohg Druckmittelspeicher
DE10214871A1 (de) * 2001-10-16 2003-04-24 Continental Teves Ag & Co Ohg Druckmittelspeicher
EP1438515A1 (de) 2001-10-16 2004-07-21 Continental Teves AG & Co. oHG Druckmittelspeicher
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
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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
EP1953517B1 (de) * 2007-02-05 2016-07-13 Nexans Anordnung zur Überwachung der Dichtigkeit eines evakuierten Raums
WO2008157327A1 (en) * 2007-06-14 2008-12-24 Hybra-Drive Systems, Llc Compact hydraulic accumulator
DE102007036487A1 (de) * 2007-08-01 2009-02-05 Hydac Technology Gmbh Führungseinrichtung für einen Metallbalg
JP5102576B2 (ja) * 2007-10-10 2012-12-19 Ｎｏｋ株式会社 アキュムレータ
JP5212699B2 (ja) * 2008-03-21 2013-06-19 横河電機株式会社 電空変換モジュールとこの電空変換モジュールを備えたバルブポジショナ
GB0811562D0 (en) * 2008-06-24 2008-07-30 Aes Eng Ltd Mechanical seal support system
US8438845B2 (en) * 2008-08-26 2013-05-14 Limo-Reid, Inc. Hoseless hydraulic system
US8418727B2 (en) * 2008-10-03 2013-04-16 Eaton Corporation Hydraulic accumulator and method of manufacture
DE102009048668A1 (de) * 2009-09-29 2011-03-31 Siemens Aktiengesellschaft Integrierte Hydraulikspeicheranordnung
EP2630399A2 (en) 2010-09-22 2013-08-28 Limo-Reid, Inc. Ultra lightweight and compact accumulator
DE102011089951A1 (de) * 2011-12-27 2013-06-27 Robert Bosch Gmbh Hydraulisch gesteuertes Speicherkammerventil
DE102012206419B4 (de) * 2012-04-19 2021-08-12 Magna Pt B.V. & Co. Kg Steuerung für ein Druckregelventil
JP5811047B2 (ja) * 2012-06-25 2015-11-11 トヨタ自動車株式会社 金属ベローズ型アキュムレータ
EP2722575B1 (en) * 2012-10-16 2017-08-30 Water Powered Technologies Limited Gas spring accumulator
US9989434B2 (en) * 2013-12-09 2018-06-05 Etymotic Research, Inc. System and method for providing an applied force indication
DE102014209682A1 (de) * 2014-05-21 2015-11-26 Robert Bosch Gmbh Dämpfungsvorrichtung
JP6657188B2 (ja) * 2015-04-02 2020-03-04 イーグル工業株式会社 アキュムレータ
WO2016194607A1 (ja) * 2015-05-29 2016-12-08 イーグル工業株式会社 金属ベローズ型アキュムレータ
JP2017065575A (ja) * 2015-09-30 2017-04-06 マツダ株式会社 車両の回生システム
DE102017200832A1 (de) * 2017-01-19 2018-07-19 Robert Bosch Gmbh Expansionskörper und Verfahren zur Überwachung eines Drucksensors bei einem SCR-System mit Expansionskörper
FI128622B (fi) * 2017-10-09 2020-08-31 Norrhydro Oy Hydraulijärjestelmä ja sen ohjausjärjestelmä
RU2694102C1 (ru) * 2019-01-10 2019-07-09 Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" Сильфонный гидроаккумулятор
US11761507B2 (en) * 2021-02-10 2023-09-19 DRiV Automotive Inc. Weight optimized bellow accumulator
CN113309925A (zh) * 2021-06-30 2021-08-27 许昌德力科电子机械科技有限公司 液压缓冲器

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Also Published As

Publication number Publication date
WO2000031420A1 (de) 2000-06-02
JP2002530604A (ja) 2002-09-17
JP5039254B2 (ja) 2012-10-03
US6478051B1 (en) 2002-11-12
EP1133641A1 (de) 2001-09-19

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