EP4230874A3 - Hydropneumatic piston accumulator - Google Patents

Hydropneumatic piston accumulator Download PDF

Info

Publication number
EP4230874A3
EP4230874A3 EP23162104.6A EP23162104A EP4230874A3 EP 4230874 A3 EP4230874 A3 EP 4230874A3 EP 23162104 A EP23162104 A EP 23162104A EP 4230874 A3 EP4230874 A3 EP 4230874A3
Authority
EP
European Patent Office
Prior art keywords
piston
housing
tube
housing cover
measuring device
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.)
Pending
Application number
EP23162104.6A
Other languages
German (de)
French (fr)
Other versions
EP4230874A2 (en
Inventor
Horst Mannebach
Peter Kloft
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
Priority claimed from DE102016007798.0A external-priority patent/DE102016007798A1/en
Priority claimed from DE102016007824.3A external-priority patent/DE102016007824A1/en
Application filed by Hydac Technology GmbH filed Critical Hydac Technology GmbH
Publication of EP4230874A2 publication Critical patent/EP4230874A2/en
Publication of EP4230874A3 publication Critical patent/EP4230874A3/en
Pending legal-status Critical Current

Links

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
    • F15B1/24—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with rigid separating means, e.g. pistons
    • 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
    • F15B2201/31—Accumulator separating means having rigid separating means, e.g. pistons
    • 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

Abstract

2. Ein hydropneumatischer Kolbenspeicher, mit einem Speichergehäuse (1), das ein eine Längsachse (11) definierendes Zylinderrohr (3) aufweist, das an beiden Enden durch jeweils einen Gehäusedeckel (5, 7) geschlossen ist und in dem ein Kolben (9) längsverfahrbar ist, der im Gehäuse einen Arbeitsraum (13) für ein kompressibles Medium, wie ein Arbeitsgas, von einem Arbeitsraum für ein inkompressibles Medium, wie Hydrauliköl, trennt, und mit einer die Position des Kolbens (9) im Gehäuse berührungslos ermittelnden Wegmesseinrichtung, ist dadurch gekennzeichnet, dass die Wegmesseinrichtung ein nichtmagnetisches Messrohr (29) aufweist, das sich durch eine im Kolben (9) gebildete Durchführung (31) entlang der Längsachse (11) von einem Gehäusedeckel (5) zum anderen Gehäusedeckel (7) hin erstreckt und gegen den Innenraum des Gehäuses (1) abgedichtet ist, dass im Rohr (29) ein Positionsgeber (57) verschiebbar geführt ist, der durch zwischen ihm und dem Kolben (9) wirkende Magnetkraft im Messrohr (29) den Kolbenbewegungen nachfolgt, und dass an einem der Gehäusedeckel (5, 7) ein Sender/Empfänger (65) der Wegmesseinrichtung angeordnet ist, der durch das betreffende offene Ende (25, 26) des Messrohres (29) hindurchtretende Messstrahlung zum Positionsgeber (57) aussendet und von diesem reflektierte Strahlung empfängt.2. A hydropneumatic piston accumulator, with an accumulator housing (1), which has a cylinder tube (3) defining a longitudinal axis (11), which is closed at both ends by a respective housing cover (5, 7) and in which a piston (9) is longitudinally movable, which separates a working space (13) for a compressible medium, such as a working gas, from a working space for an incompressible medium, such as hydraulic oil, in the housing, and with a displacement measuring device that determines the position of the piston (9) in the housing without contact characterized in that the path measuring device has a non-magnetic measuring tube (29) which extends through a passage (31) formed in the piston (9) along the longitudinal axis (11) from one housing cover (5) to the other housing cover (7) and counter the interior of the housing (1) is sealed, that a position indicator (57) is slidably guided in the tube (29) and follows the piston movements in the measuring tube (29) due to the magnetic force acting between it and the piston (9), and that on a the housing cover (5, 7) has a transmitter/receiver (65) of the path measuring device which transmits measuring radiation passing through the relevant open end (25, 26) of the measuring tube (29) to the position transmitter (57) and receives radiation reflected from it.

EP23162104.6A 2016-06-25 2017-04-11 Hydropneumatic piston accumulator Pending EP4230874A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102016007798.0A DE102016007798A1 (en) 2016-06-25 2016-06-25 Hydropneumatic piston accumulator
DE102016007824.3A DE102016007824A1 (en) 2016-06-25 2016-06-25 Hydropneumatic piston accumulator
EP17717082.6A EP3475583B1 (en) 2016-06-25 2017-04-11 Hydropneumatic piston accumulator
PCT/EP2017/000469 WO2017220179A1 (en) 2016-06-25 2017-04-11 Hydropneumatic piston accumulator

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP17717082.6A Division EP3475583B1 (en) 2016-06-25 2017-04-11 Hydropneumatic piston accumulator
EP17717082.6A Division-Into EP3475583B1 (en) 2016-06-25 2017-04-11 Hydropneumatic piston accumulator
PCT/EP2017/000469 Previously-Filed-Application WO2017220179A1 (en) 2016-06-25 2017-04-11 Hydropneumatic piston accumulator

Publications (2)

Publication Number Publication Date
EP4230874A2 EP4230874A2 (en) 2023-08-23
EP4230874A3 true EP4230874A3 (en) 2023-08-30

Family

ID=58544901

Family Applications (3)

Application Number Title Priority Date Filing Date
EP23162104.6A Pending EP4230874A3 (en) 2016-06-25 2017-04-11 Hydropneumatic piston accumulator
EP17717082.6A Active EP3475583B1 (en) 2016-06-25 2017-04-11 Hydropneumatic piston accumulator
EP17731805.2A Active EP3475584B1 (en) 2016-06-25 2017-06-19 Hydropneumatic piston accumulator

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP17717082.6A Active EP3475583B1 (en) 2016-06-25 2017-04-11 Hydropneumatic piston accumulator
EP17731805.2A Active EP3475584B1 (en) 2016-06-25 2017-06-19 Hydropneumatic piston accumulator

Country Status (4)

Country Link
US (2) US10781830B2 (en)
EP (3) EP4230874A3 (en)
JP (2) JP2019521294A (en)
WO (2) WO2017220179A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10781830B2 (en) * 2016-06-25 2020-09-22 Hydac Technology Gmbh Hydropneumatic piston accumulator
CA3193153A1 (en) * 2020-09-25 2022-03-31 Mariusz MILEWICZ Linear displacement transducer
CN112762028B (en) * 2021-01-18 2022-07-05 国家石油天然气管网集团有限公司华南分公司 Voltage-stabilizing closed oil tank

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7103342U (en) * 1971-01-29 1971-08-05 Montan Hydraulik Gmbh & Co Kg Hydro storage
JPS6297307U (en) * 1985-12-09 1987-06-20
JPH07269503A (en) * 1994-03-30 1995-10-17 Nakamura Koki Kk Piston position detection device for piston type accumulator
DE102004057769A1 (en) * 2004-11-30 2006-06-01 Mts Mikrowellen-Technologie Und Sensoren Gmbh Distance measurement device with electronic analysis and sensor units comprises a conductor structure with a coupling block connecting a high-frequency transceiver via a wave guide to a coupling probe
DE102013009614A1 (en) * 2013-06-06 2014-12-11 Hydac Electronic Gmbh Ultrasonic displacement measuring system and method for ultrasonic displacement measurement

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2729244A (en) * 1952-09-25 1956-01-03 Parker Appliance Co Hydraulic accumulators
US2800924A (en) * 1953-09-30 1957-07-30 Bendix Aviat Corp Accumulator
US3043340A (en) * 1961-05-16 1962-07-10 Cadillacjordan G M B H Piston-operated pressure reservoir
US3454050A (en) * 1967-01-31 1969-07-08 Pressure Products Ind Inc Accumulators
GB1330648A (en) * 1969-12-25 1973-09-19 Aisin Seiki Hydraulic brake master cylinder brake fluid reservoirs
DE2336965A1 (en) * 1973-07-20 1975-02-06 Hydraulik Zubehoer Ges Fuer HYDROPNEUMATIC PRESSURE ACCUMULATOR
JPS59175601A (en) * 1983-03-22 1984-10-04 Hitachi Ltd Method of detecting position of piston in pressure accumulator
JPS60143901A (en) 1983-12-29 1985-07-30 株式会社ユ−エム工業 Hand saw
JPS60143901U (en) * 1984-03-07 1985-09-24 株式会社東芝 Accumulator
US4799048A (en) * 1984-09-28 1989-01-17 Nippondenso Co., Ltd. Accumulator
JPS61123201A (en) 1984-11-19 1986-06-11 Yagi Antenna Co Ltd Distributor/mixer
JPS61123201U (en) * 1985-01-21 1986-08-02
JPH0799723B2 (en) 1985-10-24 1995-10-25 三菱電機株式会社 Uniform magnetic field coil
JPS6453501U (en) * 1987-09-26 1989-04-03
DE3734547A1 (en) * 1987-10-13 1989-05-03 Festo Kg PISTON CYLINDER AGGREGATE
JPH02186102A (en) * 1989-01-10 1990-07-20 Nakamura Koki Kk Piston position detecting device for piston type accumulator
US5238029A (en) * 1991-10-04 1993-08-24 Fanuc Robotics North America, Inc. Method and system for fluid transfer and non-contact sensor for use therein
DE4227657A1 (en) * 1992-08-21 1994-02-24 Hydac Technology Gmbh Ultrasonic test facility for gas pressure accumulators
US6412476B1 (en) * 2000-08-02 2002-07-02 Ford Global Tech., Inc. Fuel system
SE520636C2 (en) * 2001-11-12 2003-08-05 Stroemsholmen Ab Device at an energy-accumulating piston cylinder
DE10310427A1 (en) 2003-03-11 2004-09-30 Hydac Technology Gmbh hydraulic accumulator
DE102011007765A1 (en) 2011-04-20 2012-10-25 Robert Bosch Gmbh Piston accumulator with device for determining the position of a displaceable in the piston accumulator separating element
WO2013054262A1 (en) * 2011-10-10 2013-04-18 Angus Peter Robson Accumulator
DE102011090050A1 (en) 2011-12-28 2013-07-04 Robert Bosch Gmbh Method for determining a position of a piston in a piston accumulator by means of inductive sensors and suitably designed piston accumulator
DE102012022871A1 (en) 2012-11-22 2014-05-22 Hydac System Gmbh locking device
US8939177B2 (en) * 2013-03-15 2015-01-27 Lsp Products Group, Inc. In-line water hammer arrester
DE102013014282A1 (en) 2013-08-27 2015-03-05 Hydac Electronic Gmbh Position measuring system and method for determining position
US20150285272A1 (en) * 2014-04-08 2015-10-08 Yokogawa Electric Corporation Apparatus and methods for passive pressure modulation
DE102014105154A1 (en) 2014-04-11 2015-10-15 Mhwirth Gmbh Method for detecting the position and / or movement of a piston in a cylinder and cylinder arrangement
US10781830B2 (en) * 2016-06-25 2020-09-22 Hydac Technology Gmbh Hydropneumatic piston accumulator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7103342U (en) * 1971-01-29 1971-08-05 Montan Hydraulik Gmbh & Co Kg Hydro storage
JPS6297307U (en) * 1985-12-09 1987-06-20
JPH07269503A (en) * 1994-03-30 1995-10-17 Nakamura Koki Kk Piston position detection device for piston type accumulator
DE102004057769A1 (en) * 2004-11-30 2006-06-01 Mts Mikrowellen-Technologie Und Sensoren Gmbh Distance measurement device with electronic analysis and sensor units comprises a conductor structure with a coupling block connecting a high-frequency transceiver via a wave guide to a coupling probe
DE102013009614A1 (en) * 2013-06-06 2014-12-11 Hydac Electronic Gmbh Ultrasonic displacement measuring system and method for ultrasonic displacement measurement

Also Published As

Publication number Publication date
EP3475584B1 (en) 2022-08-10
EP4230874A2 (en) 2023-08-23
EP3475583C0 (en) 2023-06-07
WO2017220196A1 (en) 2017-12-28
EP3475583B1 (en) 2023-06-07
EP3475584A1 (en) 2019-05-01
JP2019521294A (en) 2019-07-25
US20200309158A1 (en) 2020-10-01
US10941789B2 (en) 2021-03-09
EP3475583A1 (en) 2019-05-01
WO2017220179A1 (en) 2017-12-28
US10781830B2 (en) 2020-09-22
JP2019519739A (en) 2019-07-11
US20190120257A1 (en) 2019-04-25

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