EP0955645A3 - Electromagnetic ultraswift actuator without springs - Google Patents

Electromagnetic ultraswift actuator without springs Download PDF

Info

Publication number
EP0955645A3
EP0955645A3 EP99108019A EP99108019A EP0955645A3 EP 0955645 A3 EP0955645 A3 EP 0955645A3 EP 99108019 A EP99108019 A EP 99108019A EP 99108019 A EP99108019 A EP 99108019A EP 0955645 A3 EP0955645 A3 EP 0955645A3
Authority
EP
European Patent Office
Prior art keywords
movable part
permanent magnet
statoric
electromagnetic
magnetic field
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
EP99108019A
Other languages
German (de)
French (fr)
Other versions
EP0955645A2 (en
EP0955645B1 (en
Inventor
Renato Biglino
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.)
Omt Officine Meccaniche Torino SpA
Original Assignee
Omt Officine Meccaniche Torino SpA
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 Omt Officine Meccaniche Torino SpA filed Critical Omt Officine Meccaniche Torino SpA
Publication of EP0955645A2 publication Critical patent/EP0955645A2/en
Publication of EP0955645A3 publication Critical patent/EP0955645A3/en
Application granted granted Critical
Publication of EP0955645B1 publication Critical patent/EP0955645B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01F7/121—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

Abstract

Electromagnetic ultraswift actuator without springs including a movable part (1) and a statoric element (7) coaxial to the movable part (1), being the movable part (1) free to axially move inside the statoric element (7) , a permanent magnet (5) having its magnetic poles (6) following each other along the longitudinal axis of the movable part (1), being the movable part (1) kept in a provided position through the magnetic field generated by the permanent magnet (5) and suitable stroke limiters (2, 3, 12, 13, 14, 16), and a statoric winding (9) coaxial to the permanent magnet (5) and excitable so that it interacts with the permanent magnet (5) magnetic field, characterized in that the magnetic field generated in the winding (9) excites the statoric part (7) polarizing it so that the permanent magnet (5) reacts together with the movable part (1) connected to it moving towards another provided position, so that the axial translation of the permanent magnet (5) and consequently of the movable part (1) is respectively caused:
  • in one direction, just by spontaneous attraction (active magnet/passive ferromagnetic circuit) eventually reinforced through an auxiliary electromagnetic excitation.
  • in the opposite direction, substantially by repulsion between polarities (active magnet/ active electromagnetic circuit) having the same sign.
EP99108019A 1998-05-06 1999-04-23 Electromagnetic ultraswift actuator without springs Expired - Lifetime EP0955645B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1998GE000035A IT1304369B1 (en) 1998-05-06 1998-05-06 ELECTROMAGNETIC ULTRA-RAPID ACTUATOR WITHOUT SPRINGS.
ITGE980035 1998-05-06

Publications (3)

Publication Number Publication Date
EP0955645A2 EP0955645A2 (en) 1999-11-10
EP0955645A3 true EP0955645A3 (en) 2000-08-16
EP0955645B1 EP0955645B1 (en) 2002-11-20

Family

ID=11355155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99108019A Expired - Lifetime EP0955645B1 (en) 1998-05-06 1999-04-23 Electromagnetic ultraswift actuator without springs

Country Status (4)

Country Link
EP (1) EP0955645B1 (en)
AT (1) ATE228265T1 (en)
DE (1) DE69903991T2 (en)
IT (1) IT1304369B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100140519A1 (en) * 2008-12-04 2010-06-10 General Electric Company Electromagnetic actuators
DE102011006071A1 (en) * 2011-03-24 2012-09-27 Ina - Drives & Mechatronics Gmbh & Co. Ohg Drive device for a valve, valve for controlling a gas and / or liquid flow

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56157008A (en) * 1980-05-06 1981-12-04 Mitsubishi Electric Corp Electromagnetic device
DE3501193A1 (en) * 1985-01-16 1986-07-17 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection valve
US4785816A (en) * 1985-01-14 1988-11-22 Johnson & Johnson Ultrasound Inc. Ultrasonic transducer probe assembly
EP0390519A1 (en) * 1989-03-30 1990-10-03 Isuzu Ceramics Research Institute Co., Ltd. Electromagnetic force valve driving apparatus
EP0419352A1 (en) * 1989-09-22 1991-03-27 Solex Electromagnetic valve with permanent magnet
EP0580117A2 (en) * 1992-07-20 1994-01-26 TDK Corporation Moving magnet-type actuator
EP0605903A1 (en) * 1993-01-07 1994-07-13 TDK Corporation Movable magnet type pump

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56157008A (en) * 1980-05-06 1981-12-04 Mitsubishi Electric Corp Electromagnetic device
US4785816A (en) * 1985-01-14 1988-11-22 Johnson & Johnson Ultrasound Inc. Ultrasonic transducer probe assembly
DE3501193A1 (en) * 1985-01-16 1986-07-17 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection valve
EP0390519A1 (en) * 1989-03-30 1990-10-03 Isuzu Ceramics Research Institute Co., Ltd. Electromagnetic force valve driving apparatus
EP0419352A1 (en) * 1989-09-22 1991-03-27 Solex Electromagnetic valve with permanent magnet
EP0580117A2 (en) * 1992-07-20 1994-01-26 TDK Corporation Moving magnet-type actuator
EP0605903A1 (en) * 1993-01-07 1994-07-13 TDK Corporation Movable magnet type pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 006, no. 037 (E - 097) 6 March 1982 (1982-03-06) *

Also Published As

Publication number Publication date
IT1304369B1 (en) 2001-03-15
ITGE980035A0 (en) 1998-05-06
EP0955645A2 (en) 1999-11-10
DE69903991D1 (en) 2003-01-02
EP0955645B1 (en) 2002-11-20
ATE228265T1 (en) 2002-12-15
ITGE980035A1 (en) 1999-11-06
DE69903991T2 (en) 2003-04-10

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