FR2308178A1 - Magnetically operated actuator employing permanent and electro-magnets - is monostable or multistable and moves slide valve which may be made of magnetic - Google Patents

Magnetically operated actuator employing permanent and electro-magnets - is monostable or multistable and moves slide valve which may be made of magnetic

Info

Publication number
FR2308178A1
FR2308178A1 FR7611177A FR7611177A FR2308178A1 FR 2308178 A1 FR2308178 A1 FR 2308178A1 FR 7611177 A FR7611177 A FR 7611177A FR 7611177 A FR7611177 A FR 7611177A FR 2308178 A1 FR2308178 A1 FR 2308178A1
Authority
FR
France
Prior art keywords
plunger
winding
magnet
magnetic
magnets
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
FR7611177A
Other languages
French (fr)
Other versions
FR2308178B3 (en
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.)
Bridon Engineering Ltd
Original Assignee
Bridon Engineering Ltd
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 GB4179175A external-priority patent/GB1559373A/en
Application filed by Bridon Engineering Ltd filed Critical Bridon Engineering Ltd
Publication of FR2308178A1 publication Critical patent/FR2308178A1/en
Application granted granted Critical
Publication of FR2308178B3 publication Critical patent/FR2308178B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1653—Magnetic circuit having axially spaced pole-pieces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1872—Bistable or bidirectional current devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The valve plunger (10) can move axially in its cylindrical casing (11). Attached to the plunger are magnetic elements (12, 13), or alternatively the whole plunger may be made from a magnetic material. Attached to the ends of the cylinder are permanent magnets (14, 15) one of each end for a bistable case, and each such magnet is also provided with a winding (16, 17). With the winding de-energised the plunger is attracted to the permanent magnet and is in a stable state. By exciting the winding (16) the permanent magnet flux is overcome and a force is exerted on the plunger which moves it into the other operating position. In the bistable case the permanent magnet (15) at the opposite end then takes over and attracts the plunger. The original setting can be restored by energising the winding (17) associated with this second magnet (15). The arrangement can be adapted to several forms, and several intermediate stable positions can be achieved by a suitable coil and magnet configuration.
FR7611177A 1975-04-16 1976-04-15 Magnetically operated actuator employing permanent and electro-magnets - is monostable or multistable and moves slide valve which may be made of magnetic Granted FR2308178A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1555575 1975-04-16
GB4179175A GB1559373A (en) 1975-10-13 1975-10-13 Magnetic actuators for spool and sleeve valves
GB4588775 1975-11-05

Publications (2)

Publication Number Publication Date
FR2308178A1 true FR2308178A1 (en) 1976-11-12
FR2308178B3 FR2308178B3 (en) 1979-01-05

Family

ID=27257272

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7611177A Granted FR2308178A1 (en) 1975-04-16 1976-04-15 Magnetically operated actuator employing permanent and electro-magnets - is monostable or multistable and moves slide valve which may be made of magnetic

Country Status (4)

Country Link
JP (1) JPS51127372A (en)
DE (1) DE2614004A1 (en)
FR (1) FR2308178A1 (en)
NL (1) NL7604084A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2423846A1 (en) * 1978-04-17 1979-11-16 Weidmueller Kg C SUPPORT FOR ELECTRIC MANIFOLD BARS
FR2452771A1 (en) * 1979-03-26 1980-10-24 Kuroda Takeshi MAGNETIC CYLINDER
EP0019706A1 (en) * 1979-05-29 1980-12-10 International Business Machines Corporation Print element actuator for a wire printer
FR2805386A1 (en) * 2000-02-17 2001-08-24 Luxalp Fluid control bistable electromagnet having extended inner moving axial magnet and outer armature with lower pole position and upper extending arm forming second magnet position.
EP1741855A2 (en) * 2005-07-09 2007-01-10 K.A. Schmersal Holding KG Blocking device for an element closing an opening
FR2973093A1 (en) * 2011-03-22 2012-09-28 Asma Sa Electrically controlled actuator for hydraulic distributor of hydraulic actuating cylinder in hydraulic steering system for e.g. autopilot, in boat, has electrical control device generating two electrical pulses of reverse polarity
WO2013017512A1 (en) * 2011-08-03 2013-02-07 Maschinenfabrik Reinhausen Gmbh Linear drive for an on-load tap changer
FR3042639A1 (en) * 2015-10-20 2017-04-21 Moving Magnet Tech LINEAR ACTUATOR WITH IMPROVED MAGNETIC STABILITY AND ARROWING STRENGTH

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0572726B1 (en) * 1984-03-05 1993-10-12 Mitsubishi Materials Corp
CH674102A5 (en) * 1986-05-20 1990-04-30 Mitsubishi Electric Corp
JP2596459B2 (en) * 1989-03-30 1997-04-02 株式会社いすゞセラミックス研究所 Valve electromagnetic drive
KR960010661B1 (en) * 1993-04-24 1996-08-07 엘지전자 주식회사 Damper
DE102011102070A1 (en) * 2011-05-19 2012-11-22 Suspa Gmbh Electrically actuatable length adjuster, has valve unit comprising throttle unit whose tube end is connected to front-side contact surface of cylindrical valve actuator, which is movably arranged in magnet housing
DE102014215110A1 (en) * 2014-07-31 2016-02-04 Siemens Aktiengesellschaft Linear actuator and method for operating such a linear actuator
CN104595557B (en) * 2015-03-01 2017-02-22 宁波市镇海华泰电器厂 Resistance-capacitance voltage reduction type power-saving and noise-reducing alternating current electromagnetic valve
DE102017000901A1 (en) 2017-02-01 2018-08-02 Rhefor Gbr (Vertretungsberechtigter Gesellschafter: Arno Mecklenburg, 10999 Berlin) Bistable solenoid
DE102017211257B4 (en) * 2017-07-03 2021-04-15 Festo Se & Co. Kg Electromagnetic actuator and valve equipped with it
US11466791B2 (en) 2020-04-10 2022-10-11 The Boeing Company Bistable hydraulic solenoid valve

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2423846A1 (en) * 1978-04-17 1979-11-16 Weidmueller Kg C SUPPORT FOR ELECTRIC MANIFOLD BARS
FR2452771A1 (en) * 1979-03-26 1980-10-24 Kuroda Takeshi MAGNETIC CYLINDER
EP0019706A1 (en) * 1979-05-29 1980-12-10 International Business Machines Corporation Print element actuator for a wire printer
FR2805386A1 (en) * 2000-02-17 2001-08-24 Luxalp Fluid control bistable electromagnet having extended inner moving axial magnet and outer armature with lower pole position and upper extending arm forming second magnet position.
EP1741855A2 (en) * 2005-07-09 2007-01-10 K.A. Schmersal Holding KG Blocking device for an element closing an opening
EP1741855A3 (en) * 2005-07-09 2010-07-07 K.A. Schmersal Holding KG Blocking device for an element closing an opening
FR2973093A1 (en) * 2011-03-22 2012-09-28 Asma Sa Electrically controlled actuator for hydraulic distributor of hydraulic actuating cylinder in hydraulic steering system for e.g. autopilot, in boat, has electrical control device generating two electrical pulses of reverse polarity
WO2013017512A1 (en) * 2011-08-03 2013-02-07 Maschinenfabrik Reinhausen Gmbh Linear drive for an on-load tap changer
FR3042639A1 (en) * 2015-10-20 2017-04-21 Moving Magnet Tech LINEAR ACTUATOR WITH IMPROVED MAGNETIC STABILITY AND ARROWING STRENGTH
WO2017068285A1 (en) * 2015-10-20 2017-04-27 Moving Magnet Technologies Linear actuator with improved magnetic stability and stripping force
CN108352240A (en) * 2015-10-20 2018-07-31 移动磁体技术公司 Linear actuators with improved magnetic stability and breakaway force
US10643773B2 (en) 2015-10-20 2020-05-05 Moving Magnet Technologies (Mmt) Linear actuator with improved magnetic stability and stripping force
CN108352240B (en) * 2015-10-20 2020-05-19 移动磁体技术公司 Linear actuator with improved magnetic stability and disengagement force

Also Published As

Publication number Publication date
JPS51127372A (en) 1976-11-06
NL7604084A (en) 1976-10-19
FR2308178B3 (en) 1979-01-05
DE2614004A1 (en) 1976-10-28

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Legal Events

Date Code Title Description
ST Notification of lapse