EP0898085A2 - Vérin à fluide à pression pour fluides électrorhéologiques - Google Patents

Vérin à fluide à pression pour fluides électrorhéologiques Download PDF

Info

Publication number
EP0898085A2
EP0898085A2 EP98114617A EP98114617A EP0898085A2 EP 0898085 A2 EP0898085 A2 EP 0898085A2 EP 98114617 A EP98114617 A EP 98114617A EP 98114617 A EP98114617 A EP 98114617A EP 0898085 A2 EP0898085 A2 EP 0898085A2
Authority
EP
European Patent Office
Prior art keywords
housing
valves
pressure medium
electrorheological
medium motor
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.)
Granted
Application number
EP98114617A
Other languages
German (de)
English (en)
Other versions
EP0898085A3 (fr
EP0898085B1 (fr
Inventor
Horst Dr. Rosenfeldt
Dorothea Adams
Horst Scherk
Eckhardt Dr. Wendt
Klaus Büsing
Gerald Fees
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.)
Fludicon GmbH
Original Assignee
Carl Schenck AG
Bayer AG
Fludicon 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 Carl Schenck AG, Bayer AG, Fludicon GmbH filed Critical Carl Schenck AG
Publication of EP0898085A2 publication Critical patent/EP0898085A2/fr
Publication of EP0898085A3 publication Critical patent/EP0898085A3/fr
Application granted granted Critical
Publication of EP0898085B1 publication Critical patent/EP0898085B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/06—Use of special fluids, e.g. liquid metal; Special adaptations of fluid-pressure systems, or control of elements therefor, to the use of such fluids
    • F15B21/065—Use of electro- or magnetosensitive fluids, e.g. electrorheological fluid

Definitions

  • the invention relates to a pressure medium motor for electrorheological Liquids, with a two working chambers surrounding housing, a movable in the housing Piston that separates the working chambers from one another Inlet channel for the supply of an electrorheological Liquid from a room of higher pressure, an outlet channel for the drainage of the electrorheological fluid in a room of low pressure and electrorheological valves each with a working chamber with the inlet channel or the annular gap connecting the outlet channel, the Boundary surfaces electrodes for generating an electrical Field.
  • Electrorheological fluids also as electroviscous Designated liquids, change their viscosity depending on on the field strength of an electric field, the they are exposed. Under the action of an electric Electro-rheological liquids become tough or field even stiff. It is known electrorheological fluids to be used as working fluid in hydraulic systems, to hydraulic with the help of electrorheological valves To be able to control processes directly electrically.
  • the invention has for its object a hydraulic motor of the type mentioned at the beginning with integrated valves to create the compact outer dimensions a high differential pressure between the two working chambers and thus enables a relatively large actuating force, which achieves a high dynamic and with which good heat dissipation given by direct metallic heat conduction is.
  • the object is achieved in that the electrorheological valves through the housing wall in Longitudinal penetrating holes and in the holes arranged elements insulated from the housing are formed, the holes and the elements together Limit annular gaps of constant gap width and the Elements connected to a high voltage and the housing to ground potential can be created.
  • the pressure medium motor can the electrode column of the electrorheological Valves are guided over the entire length of the housing, so that one, measured by the overall length of the pressure medium motor, high pressure difference is achievable. All ring gaps are in direct contact with the one made from a metal Housing wall, which ensures good heat dissipation is guaranteed.
  • Each valve can pass through several holes be formed with high voltage elements. It is therefore a large cross-sectional area of the valves and thus a high volume flow and a high dynamic of the Pressure medium motor accessible.
  • the design according to the invention the pressure medium motor also enables a mechanical simple structure with identical components, namely Bores and elements of the same size to form the four valves. The elements can be in a simple design consist of cylindrical rods or thorns, they but can also take the form of a along the bore extending helix.
  • the elements can, according to the invention, with their Bores protruding ends are stored in end caps, which are attached to the end faces of the housing and from highly insulating material, e.g. engineering thermoplastics such as PPS or ceramics.
  • the end caps can continue to form chambers through which the ring gaps the valves with the inlet channel, and the outlet channel or are connected to a working chamber. This has the advantage that the entire annular gap cross section as the inlet cross section is available.
  • the four valves can be opened two different types via the chambers in the end caps to the working chambers and the inlet duct and the outlet duct be connected.
  • Figure 1 illustrates the operation of the following described in more detail with an electrorheological fluid working pressure motor.
  • the upper channel contains the in a row Annular gap valves 1a illustrated by circular areas and 2b, the lower flow channel, the annular gap valves 2a and 1b, viewed in the flow direction.
  • Between the annular gap valves 1a, 2b is on the upper flow channel which connected a working chamber A of the pressure medium motor, between the annular gap valves 2a, 1b is on the lower flow channel the other working chamber B of the Pressure fluid motor connected.
  • the annular gap valves 1a, 1b blocked by applying a high voltage, i.e. due to the high voltage in the annular gap generated electric field becomes the viscosity of the electrorheological Working fluid within the Annular gap increased so much that against that caused Flow resistance only a fraction of that conveyed amount of liquid, the annular gap valves 1a, 1b can happen.
  • This increases the pressure at the pump outlet and in the via the annular gap valve switched to passage 2a connected to this working chamber B.
  • the pressure in working chamber A remains low Level of the container T, since the valve 2b is also open Continuity is. Due to the pressure difference between the Working chamber B and working chamber A is the piston in Moved towards the working chamber A.
  • the pressure medium motor shown in Figures 2 to 6 has a cylindrical housing 1 made of metal.
  • the housing 1 has a central, continuous cylinder bore 2, in which a piston 3 with a piston rod 4 is guided axially movable.
  • the piston 3 is with a Sliding seal 5 opposite the wall of the cylinder bore 2 sealed and divided the cylinder bore 2 in two Working chambers A, B.
  • In the wall of the housing 1 are parallel a series of cylindrical bores for cylinder bore 2 6 provided that completely penetrate the housing 1 and have a uniform diameter.
  • Through the holes 6 extend cylindrical mandrels 7 made of metal, which have a smaller diameter than the holes 6 and are centered in relation to the holes.
  • the ends of the mandrels 7 protruding from the holes 6 are stored in end caps 9, 10 on both end faces of the housing 1 are attached pressure-tight.
  • the end caps 9, 10 are made of an insulating material, e.g. PPS or Polycarbonate, which is filled with fillers such as glass fibers, can be reinforced.
  • the end caps point in the middle 9, 10 a cylindrical projection 11, each engages in the end of the cylinder bore 2 and closes it.
  • the end caps 9, 10 are central Provided through holes 12 in which the piston rod 4 out and sealed.
  • the end caps 9, 10 have on their housing 1 facing Each side has two semi-cylindrical chambers 13, 14 or 15, 16 on, which by a radial wall 17 or 18th are separated from each other.
  • the walls 17, 18 are relative to one another aligned that their median plane perpendicular to each other stand.
  • Annular gaps 8 In each of the chambers 13 to 16 arranged in the corresponding cylinder half of the housing 1 Annular gaps 8.
  • Each of the four groups of Annular gaps form an electrorheological annulus valve 1a, 1b, 2a, 2b.
  • the mandrels 7 of each annular gap valve are in the end cap 9 by a high voltage distributor 19 connected to each other and each independently of the Thorns of the other ring gap valves to a high voltage source connectable.
  • the housing 1 is at earth potential connected. Is on the spikes 7 of an annular gap valve High voltage on, this is in the annular gaps 8 Annular gap valve generates an electric field and the viscosity the located in the annular gaps 8 of this valve electrorheological working fluid increased.
  • the chamber 16 via a channel 20 in Housing 1 with the working chamber A and the chamber 15 over a channel 21 in the housing 1 connected to the working chamber B.
  • the chamber 14 is connected to the inlet channel 22 and the chamber 13 connected to the outlet duct 23.
  • the about the Inlet channel 22 of the chamber 14 supplied working fluid can either into the chamber via the annular gap valve 1a 16 or via the annular gap valve 2a into the chamber 15 reach. Accordingly, the working fluid from the Chamber 16 via the annular gap valve 2b and out of the chamber 15 via the annular gap valve 1b into the chamber 13 and are discharged from there in the outlet duct 23.
  • the described invention is equally suitable for Pressure fluid motors with a magnetorheological Working fluid. Instead of an electric one The field is then a magnetic field with the help of suitable coils build up in the ring gaps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Servomotors (AREA)
  • Fluid-Damping Devices (AREA)
EP98114617A 1997-08-16 1998-08-04 Vérin à fluide à pression pour fluides électrorhéologiques Expired - Lifetime EP0898085B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19735466 1997-08-16
DE19735466A DE19735466B4 (de) 1997-08-16 1997-08-16 Druckmittelmotor für elektrorheologische Flüssigkeiten

Publications (3)

Publication Number Publication Date
EP0898085A2 true EP0898085A2 (fr) 1999-02-24
EP0898085A3 EP0898085A3 (fr) 2000-01-19
EP0898085B1 EP0898085B1 (fr) 2006-05-10

Family

ID=7839107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98114617A Expired - Lifetime EP0898085B1 (fr) 1997-08-16 1998-08-04 Vérin à fluide à pression pour fluides électrorhéologiques

Country Status (5)

Country Link
US (1) US6116144A (fr)
EP (1) EP0898085B1 (fr)
JP (1) JPH11125215A (fr)
KR (1) KR19990023619A (fr)
DE (2) DE19735466B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1101953A3 (fr) * 1999-11-19 2004-01-02 Schenck Pegasus GmbH Moteur à actionnement fluidique pour les fluides électrorhéologiques

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19717693A1 (de) * 1997-04-26 1998-10-29 Schenck Ag Carl Stell- und Dämpfervorrichtung
US6823895B2 (en) * 2001-05-31 2004-11-30 The Board Of Regents Of The University And Community College System Of Nevada On Behalf Of The University Of Nevada Magnetorheological fluid device
DE102004010532A1 (de) * 2004-03-04 2005-12-15 Fludicon Gmbh Ventilansteuerung von hydraulischen Aktoren auf Basis elektrorheologischer Flüssigkeiten
DE102004026454B4 (de) * 2004-05-29 2007-10-25 Bundesrepublik Deutschland, vertreten durch das Bundesministerium der Verteidigung, dieses vertreten durch das Bundesamt für Wehrtechnik und Beschaffung Schwimmende Rohrlagerung
DE102010001595B4 (de) * 2010-02-04 2012-05-16 Sumitomo (Shi) Demag Plastics Machinery Gmbh Spritzgießmaschine sowie hydraulische Antriebseinheit hierfür
RU2634166C2 (ru) * 2014-08-18 2017-10-24 Катарина Валерьевна Найгерт Магнитореологический привод прямого электромагнитного управления характеристиками потока верхнего контура гидравлической системы с гидравлическим мостиком (варианты)
CN106438565B (zh) * 2016-12-08 2018-02-02 广东技术师范学院 一种防尘控热装置及其方法
DE102017214660B4 (de) * 2017-08-22 2022-12-15 Bayerische Motoren Werke Aktiengesellschaft Druckbolzen einer Presse sowie Presse mit Druckbolzen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4840112A (en) 1988-01-12 1989-06-20 Ga Technologies Inc. Combined valve/cylinder using electro-rheological fluid

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3050034A (en) * 1960-04-04 1962-08-21 Ct Circuits Inc Transducer-controlled servomechanism
US3501099A (en) * 1967-09-27 1970-03-17 Physics Int Co Electromechanical actuator having an active element of electroexpansive material
US3552275A (en) * 1968-07-29 1971-01-05 Boeing Co Electric fluid actuator
US3587613A (en) * 1969-07-18 1971-06-28 Atomic Energy Commission Electro-fluid valve having strip electrodes
US3599428A (en) * 1970-04-29 1971-08-17 Boeing Co Electric fluid actuator
DE3063743D1 (en) * 1979-05-15 1983-07-21 Secr Defence Brit A hydraulic servo valve arrangement
JP2599602B2 (ja) * 1987-11-02 1997-04-09 株式会社ブリヂストン 起振装置
DE3738630C2 (de) * 1987-11-13 1995-06-08 Rexroth Mannesmann Gmbh Elektrohydraulische Druckwandlervorrichtung
US5014829A (en) * 1989-04-18 1991-05-14 Hare Sr Nicholas S Electro-rheological shock absorber
US5161653A (en) * 1989-04-18 1992-11-10 Hare Sr Nicholas S Electro-rheological shock absorber
US5158109A (en) * 1989-04-18 1992-10-27 Hare Sr Nicholas S Electro-rheological valve
GB2244006B (en) * 1990-05-04 1994-05-25 Blatchford & Sons Ltd An artificial limb
US5170866A (en) * 1991-04-01 1992-12-15 Motorola, Inc Motion-damping device using electrorheological fluid
USH1292H (en) * 1992-09-23 1994-03-01 The United States Of America As Represented By The Secretary Of The Navy Electro-rheological fluid damped actuator
US5866971A (en) * 1993-09-09 1999-02-02 Active Control Experts, Inc. Hybrid motor
GB2285494B (en) * 1994-01-05 1998-04-22 Ckd Corp Control apparatus for an electroviscous fluid

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4840112A (en) 1988-01-12 1989-06-20 Ga Technologies Inc. Combined valve/cylinder using electro-rheological fluid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1101953A3 (fr) * 1999-11-19 2004-01-02 Schenck Pegasus GmbH Moteur à actionnement fluidique pour les fluides électrorhéologiques

Also Published As

Publication number Publication date
EP0898085A3 (fr) 2000-01-19
DE19735466A1 (de) 1999-02-18
US6116144A (en) 2000-09-12
KR19990023619A (ko) 1999-03-25
JPH11125215A (ja) 1999-05-11
EP0898085B1 (fr) 2006-05-10
DE19735466B4 (de) 2007-06-28
DE59813531D1 (de) 2006-06-14

Similar Documents

Publication Publication Date Title
DE2622041C2 (de) Umschaltventil
DE19820569A1 (de) Ventil auf Basis elektrorheologischer und/oder magnetorheologischer Flüssigkeiten
EP2628959B1 (fr) Servosoupape
EP0066274B1 (fr) Arrangement de vannes pour augmenter la vitesse de sortie d'un vérin
EP0688411B1 (fr) Soupape de commande hydraulique
DE19735466B4 (de) Druckmittelmotor für elektrorheologische Flüssigkeiten
DE3446134C2 (fr)
DE10320005B3 (de) Schwingungsdämpfer mit feldkraftabhängig regelbarer Dämpfkraft
DE3435952A1 (de) Ventilvorrichtung fuer hydraulische ausbausystem u.dgl.
EP1101953A2 (fr) Moteur à actionnement fluidique pour les fluides électrorhéologiques
DE19735898A1 (de) Ventil und Stoßdämpfer auf Basis elektrorheologischer Flüssigkeiten
DE102014011541B4 (de) Elektrorheologischer Aktor
DE19757157C2 (de) Hydraulischer Linearantrieb
DE3825453C2 (fr)
DE3204303A1 (de) Hydraulikzylinder
DE3614484A1 (de) Elektrohydraulischer wandler
DE19843122C2 (de) Wegeventil
DE2825827C2 (de) Stellmotor mit Nachlaufsteuerung für hydraulische Verstellmaschinen
DE4037135C2 (fr)
DE2515035A1 (de) Steuerventil fuer hydraulikkreise
DE3026788A1 (de) Anordnung zur leckverhinderung
DE2505126C3 (de) Zweistufiges elektrohydraulisches Servoventil mit mechanischer Rückführung
DE1665938C3 (de) Flüssigkeitsarmer Hochspannungs-Leistungsschalter
DE3637834A1 (de) Drossel-rueckschlagventil
DE9112173U1 (de) Wegeventil mit längsbeweglichem Steuerschieber

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE CH DE ES FR GB IT LI SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FEES, GERALD

Inventor name: BUESING, KLAUS

Inventor name: WENDT, ECKHARDT DR.

Inventor name: SCHERK, HORST

Inventor name: ADAMS, DOROTHEA

Inventor name: ROSENFELDT, HORST DR.

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20000719

AKX Designation fees paid

Free format text: BE CH DE ES FR GB IT LI SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CARL SCHENCK AG

Owner name: BAYER CHEMICALS AG

17Q First examination report despatched

Effective date: 20041202

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: FLUDICON GMBH

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FEES, GERALD

Inventor name: BUESING, KLAUS

Inventor name: WENDT, ECKHARDT DR.

Inventor name: SCHERK, HORST

Inventor name: ADAMS, DOROTHEA

Inventor name: ROSENFELDT, HORST DR.

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE ES FR GB IT LI SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59813531

Country of ref document: DE

Date of ref document: 20060614

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060530

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060810

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060821

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20070213

BERE Be: lapsed

Owner name: FLUDICON G.M.B.H.

Effective date: 20060831

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20120821

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20120823

Year of fee payment: 15

Ref country code: FR

Payment date: 20120906

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20121024

Year of fee payment: 15

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130804

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140301

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140430

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59813531

Country of ref document: DE

Effective date: 20140301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130804

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130804

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130902