CN103244577A - Overrunning clutch - Google Patents
Overrunning clutch Download PDFInfo
- Publication number
- CN103244577A CN103244577A CN2013101534514A CN201310153451A CN103244577A CN 103244577 A CN103244577 A CN 103244577A CN 2013101534514 A CN2013101534514 A CN 2013101534514A CN 201310153451 A CN201310153451 A CN 201310153451A CN 103244577 A CN103244577 A CN 103244577A
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- fixed block
- steel fixed
- transmission shaft
- magnetic
- magnetic steel
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Abstract
The invention discloses an overrunning clutch which comprises a base, a bearing, a transmission shaft, a limiting ring, fixed shafts, rotary shafts, magnetic-steel fixed blocks and non-magnetic-conducting metal discs. The non-magnetic-conducting metal discs are fixed at the upper end of the transmission shaft, the limiting ring is fixed at the outer edge of the upper end of the base, each fixed shaft is fixed at the upper end of the base along the inner side of the limiting ring, each rotary shaft is fixed on one fixed shaft in a pivoted manner, a pair of the magnetic-steel fixed blocks are fixed on each rotary shaft, a pair of permanent magnets opposite in polarity are fixed at second ends of each pair of the magnetic-steel fixed blocks, and the non-magnetic-conducting metal discs are disposed among the rotary shafts. By utilizing the Lenz's law, force is transmitted onto the base from the transmission shaft, and contactless overrun clutching is realized. The permanent magnets do not contact with the non-magnetic-conducting metal discs, so that friction is not caused, impact force is extremely small, abrasion cannot be caused, and the service life of the clutch is greatly prolonged.
Description
Technical field
The present invention relates to clutch, particularly a kind of free wheel device.
Background technique
Free wheel device is one of mechanically operated basic part, it is the vitals for transmission of power between prime mover and the working machine or between machine intimate driving shaft and the driven shaft and separation function, it is the conversion that utilizes velocity variations or the sense of rotation of principal and subordinate's parts, realizes the device of clutch function voluntarily.Common free wheel device has pawl type free wheel device, roller-type overrunning clutch and Wedge type over running clutch.
The pawl type free wheel device is to utilize the mutual chimeric of parts in the structure or separate to come the transmission of realizable force or surmount, in conjunction with the time have and impact and noise;
Roller-type overrunning clutch is made up of inner ring, roller, outer ring, spring and ejector pin etc., and general inner ring is driving link, and the outer ring is driven member.When inner ring rotated counterclockwise, roller was driven the outer ring and rotates by wedging, the clutch combination; When inner ring clockwise rotated, roller was retracted into the sipes position, and the outer ring is then motionless, clutch separation.If the outer ring is driven with inner ring by another system and rotates in the same way, when the outer ring rotating speed was lower than inner ring, clutch was automatic combination, if the outer ring rotating speed is higher than inner ring, clutch then separates automatically.
The voussoir free wheel device replaces roller as the wedging part with special-shaped voussoir, is a kind of clutch of forming friction pair with voussoir and inside and outside raceway.Do not have relative movement when between interior ring, outer shroud and voussoir, turn to identically, rotating speed equates, could transmitting torque, otherwise be relative slip, the sliding mode of this not transmitting torque is called and surmounts.The voussoir free wheel device mainly contains basic model, no inner ring type and band bearing type, and its Connecting format is divided into key connection, gear connection, belt wheel connection, sprocket wheel connection, bolt connection etc.
The free wheel device of above-mentioned these common structures is the mechanical bond transmitted powers that pass through between principal and subordinate's parts, and parts are not shock-resistant, and are easy to wear, and after may wear to a certain degree, clutch lost efficacy, and the life-span is shorter.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of free wheel device, and not easy to wear, shock-resistant, the life-span is long.
For solving the problems of the technologies described above, provided by the invention kind of free wheel device comprises pedestal, bearing, transmission shaft, spacing annulus, stationary axle, rotating shaft, magnet steel fixed block, magnetic conductive metal dish not;
Described bearing is the pipe shape;
Described not magnetic conductive metal dish, center fixation is in the upper end of described transmission shaft;
The intermediate portion of described transmission shaft, pivot are fixed in the described bearing;
The upper end of described transmission shaft is for magnet case or the magnetic conduction annulus fixedly arranged;
Described pedestal, pivot are fixed in outside the described bearing;
Described spacing annulus, the outer rim of fixing described pedestal upper end is magnetic conductive material not;
Described pedestal, bearing, transmission shaft, spacing annulus, magnetic conductive metal dish coaxial line not;
Described stationary axle has N, and N stationary axle is separately fixed at the upper end of described pedestal along described spacing annulus inboard, and the axis of each stationary axle is parallel to the axis of transmission shaft and equal to the distance of the axis of transmission shaft, and N is positive integer;
Described rotating shaft has N, and each rotating shaft pivot respectively is fixed on the stationary axle, and each rotating shaft fixedly has a secondary magnet steel fixed block;
Every secondary magnet steel fixed block comprises a upper magnetic steel fixed block, a lower magnetic steel fixed block;
The upper magnetic steel fixed block of every secondary magnet steel fixed block, first end is fixed in the upper end of a rotating shaft, and fixedly there is a permanent magnet second end below;
The lower magnetic steel fixed block of every secondary magnet steel fixed block, first end is fixed in the lower end of this rotating shaft, and the second end upper fixed has a permanent magnet;
The polarity of the permanent magnet of fixing on fixing permanent magnet and the lower magnetic steel fixed block on the upper magnetic steel fixed block is opposite;
First end of upper magnetic steel fixed block and/or lower magnetic steel fixed block has a projection;
Described not magnetic conductive metal dish places between N the rotating shaft;
When the two ends of described magnet steel fixed block line with the upper end of its place rotating shaft to the angle of the line of the upper end of described transmission shaft during smaller or equal to first angle, the projection of first end of upper magnetic steel fixed block and/or lower magnetic steel fixed block abuts on the described spacing annulus, limits this angle and diminishes; When the two ends of described magnet steel fixed block line with the upper end of its place rotating shaft to the angle of the line of the upper end of described transmission shaft during more than or equal to second angle, abutting on the described spacing annulus of second end of upper magnetic steel fixed block and/or lower magnetic steel fixed block limited this angle and become big; When the two ends of described magnet steel fixed block line is spent smaller or equal to third angle to the angle of the line of the upper end of described transmission shaft with the upper end of its place rotating shaft, the outer peripheral portion of described not magnetic conductive metal dish places the upper magnetic steel fixed block of each secondary magnet steel fixed block with between the lower magnetic steel fixed block, and the third angle degree is greater than first angle and less than second angle.
Preferable, described pedestal, stationary axle are magnetic conductive material not.
Preferable, described pedestal, spacing annulus, stationary axle are aluminum alloy material.
Preferable, N be 4,5 or 6, N stationary axle be fixed on the upper end of described pedestal 3 along inboard evenly distribution of described spacing annulus;
Preferable, described not magnetic conductive metal dish is copper material or aluminium material;
Preferable, permanent magnet fixing on the upper magnetic steel fixed block is the N utmost point, permanent magnet fixing on the lower magnetic steel fixed block is the S utmost point.
Free wheel device of the present invention, utilize that stupefied thatch law---closing coil cutting magnetic line can produce the principle of reaction force (resistance), power is delivered on the pedestal by transmission shaft, realize contactless overdrive clutch, because permanent magnet does not contact with magnetic conductive metal dish not, not friction, so impact force is minimum, also can not cause wearing and tearing, the life-span of clutch prolongs greatly, and it is easy to wear thoroughly to have solved clutch, not shock-resistant, the problem that life-span is short, free wheel device of the present invention, the wind power generating set etc. that is particularly useful for bilobed wheel has the occasion of greater impact load.
Description of drawings
In order to be illustrated more clearly in technological scheme of the present invention, below the accompanying drawing that will use required for the present invention is done simple the introduction, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is free wheel device one embodiment's axial section schematic representation of the present invention;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is free wheel device one embodiment's of the present invention state of rest schematic representation;
Fig. 4 is free wheel device one embodiment's of the present invention overdrive clutch view.
The stupefied thatch law of Fig. 5 schematic representation.
Embodiment
Below in conjunction with accompanying drawing, the technological scheme among the present invention is carried out clear, complete description, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment among the present invention, all other embodiments that those of ordinary skills obtain under the prerequisite of not making creative work belong to the scope of protection of the invention.
Free wheel device one mode of execution to shown in Figure 4, comprises pedestal 3, bearing 10, transmission shaft 9, spacing annulus 31, stationary axle 4, rotating shaft 2, magnet steel fixed block 5, permanent magnet 6, magnetic conductive metal dish 1 not as Fig. 1;
Described bearing 10 is the pipe shape;
Described not magnetic conductive metal dish 1, center fixation is in the upper end of described transmission shaft 9; Preferable, magnetic conductive metal dish 1 is not copper material or aluminium material;
The intermediate portion of described transmission shaft 9, pivot are fixed in the described bearing 10;
The upper end of described transmission shaft 9 is for magnet case or magnetic conduction annulus 14 fixedly arranged;
Described pedestal 3, pivot are fixed in outside the described bearing 10;
Described spacing annulus 31, the outer rim of fixing described pedestal 3 upper ends is magnetic conductive material not, for example can be aluminum alloy material;
Described pedestal 3, bearing 10, transmission shaft 9, spacing annulus 31, magnetic conductive metal dish 1 coaxial line not;
Described stationary axle 4 has N, and N stationary axle 4 is separately fixed at the upper end of described pedestal 3 along described spacing annulus 31 inboards, and the axis of each stationary axle 4 is parallel to the axis of transmission shaft 9 and equal to the distance of the axis of transmission shaft 9, and N is positive integer; Preferable, N be 4,5 or 6, N stationary axle 4 be fixed on the upper end of described pedestal 3 along described spacing annulus 31 inboard evenly distributions;
Described rotating shaft 2 has N, and each rotating shaft 2 pivot respectively is fixed on the stationary axle 4, and each rotating shaft 2 fixedly has a secondary magnet steel fixed block 5;
Every secondary magnet steel fixed block comprises a upper magnetic steel fixed block, a lower magnetic steel fixed block;
The upper magnetic steel fixed block of every secondary magnet steel fixed block, first end is fixed in the upper end of a rotating shaft 2, and fixedly there is a permanent magnet 6 second end below;
The lower magnetic steel fixed block of every secondary magnet steel fixed block, first end is fixed in the lower end of this rotating shaft 2, and the second end upper fixed has a permanent magnet 6;
The polarity of the permanent magnet of fixing on fixing permanent magnet 6 and the lower magnetic steel fixed block on the upper magnetic steel fixed block 6 is opposite; For example, permanent magnet 6 fixing on the upper magnetic steel fixed block is the N utmost point, the S utmost point of fixing permanent magnet 6 on the lower magnetic steel fixed block;
First end of upper magnetic steel fixed block and/or lower magnetic steel fixed block has a projection 51;
Described not magnetic conductive metal dish 1 places between N the rotating shaft 2;
When the two ends of described magnet steel fixed block 5 line with the upper end of its place rotating shaft 2 to the angle of the line of the upper end of described transmission shaft 9 during smaller or equal to first angle, the projection 51 of first end of upper magnetic steel fixed block and/or lower magnetic steel fixed block abuts on the described spacing annulus 31, limits this angle and diminishes; When the two ends of described magnet steel fixed block 5 line with the upper end of its place rotating shaft 2 to the angle of the line of the upper end of described transmission shaft 9 during more than or equal to second angle, abutting on the described spacing annulus 31 of second end of upper magnetic steel fixed block and/or lower magnetic steel fixed block limited this angle and become big; When the two ends of described magnet steel fixed block 5 line is spent smaller or equal to third angle to the angle of the line of the upper end of described transmission shaft 9 with the upper end of its place rotating shaft 2, the outer peripheral portion of described not magnetic conductive metal dish 1 places the upper magnetic steel fixed block of each secondary magnet steel fixed block 5 with between the lower magnetic steel fixed block, and the third angle degree is greater than first angle and less than second angle.
Preferable, described pedestal 3, stationary axle 4 are magnetic conductive material not, for example can be aluminum alloy material.
Free wheel device of the present invention, when pedestal 3 and transmission shaft 9 are static, as shown in Figure 3, the projection 51 of each magnet steel fixed block 5 first end is with the active force of spacing annulus 31, and the permanent magnet 6 that second end is fixed is with the gravitation between the magnetic conduction annulus of the upper end of transmission shaft 9, make top that the fixing permanent magnet 6 of upper magnetic steel fixed block 5 second ends of each rotating shaft 2 upper ends is positioned at magnetic conductive metal dish 1 not fixed position really, make below that the fixing permanent magnet 6 of lower magnetic steel fixed block 5 second ends of each rotating shaft 2 lower ends is positioned at magnetic conductive metal dish 1 not fixed position really, the magnetic line of force that the permanent magnet that every secondary magnet steel fixed block 5 is fixed is 6 passes the not outer peripheral portion of magnetic conductive metal dish 1; When transmission shaft 9 drove magnetic conductive metal dish 1 rotation, magnetic conductive metal dish 1 cutting magnetic line was not shown in Figure 5, and according to Lenz's law, magnetic conductive metal dish 1 hinders relative movement with producing electromagnetic resistance between magnet steel fixed block 5 and the permanent magnet 6.Because the projection 51 of magnet steel fixed block 5 first ends is resisted against on the described spacing annulus 31, electromagnetic resistance can drive pedestal 3 and magnetic conductive metal dish 1(transmission shaft 9 not) rotate in the same way; When pedestal 3 rotates, the magnet steel fixed block 5 and the permanent magnet 6 that are installed in the rotating shaft 2 can produce centrifugal force, when rotating, pedestal 3 reaches setting speed, the centrifugal force of magnet steel fixed block 5 and permanent magnet 6 is during greater than the influence power in gravity and magnetic field, magnet steel fixed block 5 and permanent magnet 6 are around stationary axle 4 rotations, make not that magnetic conductive metal dish 1 breaks away from from the magnetic field of permanent magnet 6, as shown in Figure 4, realize overdrive clutch.
Free wheel device of the present invention, utilize that stupefied thatch law---closing coil cutting magnetic line can produce the principle of reaction force (resistance), power is delivered on the pedestal by transmission shaft, realize contactless overdrive clutch, because permanent magnet does not contact with magnetic conductive metal dish not, not friction, so impact force is minimum, also can not cause wearing and tearing, the life-span of clutch prolongs greatly, and it is easy to wear thoroughly to have solved clutch, not shock-resistant, the problem that life-span is short, free wheel device of the present invention, the wind power generating set etc. that is particularly useful for bilobed wheel has the occasion of greater impact load.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (6)
1. a free wheel device comprises pedestal, bearing, transmission shaft, it is characterized in that, also comprises spacing annulus, stationary axle, rotating shaft, magnet steel fixed block, magnetic conductive metal dish not;
Described bearing is the pipe shape;
Described not magnetic conductive metal dish, center fixation is in the upper end of described transmission shaft;
The intermediate portion of described transmission shaft, pivot are fixed in the described bearing;
The upper end of described transmission shaft is for magnet case or the magnetic conduction annulus fixedly arranged;
Described pedestal, pivot are fixed in outside the described bearing;
Described spacing annulus, the outer rim of fixing described pedestal upper end is magnetic conductive material not;
Described pedestal, bearing, transmission shaft, spacing annulus, magnetic conductive metal dish coaxial line not;
Described stationary axle has N, and N stationary axle is separately fixed at the upper end of described pedestal along described spacing annulus inboard, and the axis of each stationary axle is parallel to the axis of transmission shaft and equal to the distance of the axis of transmission shaft, and N is positive integer;
Described rotating shaft has N, and each rotating shaft pivot respectively is fixed on the stationary axle, and each rotating shaft fixedly has a secondary magnet steel fixed block;
Every secondary magnet steel fixed block comprises a upper magnetic steel fixed block, a lower magnetic steel fixed block;
The upper magnetic steel fixed block of every secondary magnet steel fixed block, first end is fixed in the upper end of a rotating shaft, and fixedly there is a permanent magnet second end below;
The lower magnetic steel fixed block of every secondary magnet steel fixed block, first end is fixed in the lower end of this rotating shaft, and the second end upper fixed has a permanent magnet;
The polarity of the permanent magnet of fixing on fixing permanent magnet and the lower magnetic steel fixed block on the upper magnetic steel fixed block is opposite;
First end of upper magnetic steel fixed block and/or lower magnetic steel fixed block has a projection;
Described not magnetic conductive metal dish places between N the rotating shaft;
When the two ends of described magnet steel fixed block line with the upper end of its place rotating shaft to the angle of the line of the upper end of described transmission shaft during smaller or equal to first angle, the projection of first end of upper magnetic steel fixed block and/or lower magnetic steel fixed block abuts on the described spacing annulus, limits this angle and diminishes; When the two ends of described magnet steel fixed block line with the upper end of its place rotating shaft to the angle of the line of the upper end of described transmission shaft during more than or equal to second angle, abutting on the described spacing annulus of second end of upper magnetic steel fixed block and/or lower magnetic steel fixed block limited this angle and become big; When the two ends of described magnet steel fixed block line is spent smaller or equal to third angle to the angle of the line of the upper end of described transmission shaft with the upper end of its place rotating shaft, the outer peripheral portion of described not magnetic conductive metal dish places the upper magnetic steel fixed block of each secondary magnet steel fixed block with between the lower magnetic steel fixed block, and the third angle degree is greater than first angle and less than second angle.
2. free wheel device according to claim 1 is characterized in that,
Described pedestal, stationary axle are magnetic conductive material not.
3. free wheel device according to claim 2 is characterized in that,
Described pedestal, spacing annulus, stationary axle are aluminum alloy material.
4. free wheel device according to claim 1 is characterized in that,
N be 4,5 or 6, N stationary axle be fixed on the upper end of described pedestal 3 along inboard evenly distribution of described spacing annulus.
5. free wheel device according to claim 1 is characterized in that,
Described not magnetic conductive metal dish is copper material or aluminium material.
6. free wheel device according to claim 1 is characterized in that,
Permanent magnet fixing on the upper magnetic steel fixed block is the N utmost point, and permanent magnet fixing on the lower magnetic steel fixed block is the S utmost point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101534514A CN103244577A (en) | 2013-04-27 | 2013-04-27 | Overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101534514A CN103244577A (en) | 2013-04-27 | 2013-04-27 | Overrunning clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103244577A true CN103244577A (en) | 2013-08-14 |
Family
ID=48924328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101534514A Pending CN103244577A (en) | 2013-04-27 | 2013-04-27 | Overrunning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103244577A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106999737A (en) * | 2014-12-04 | 2017-08-01 | 涡流有限合伙公司 | Locking activation between element |
| CN107078623A (en) * | 2014-08-18 | 2017-08-18 | 涡流有限合伙公司 | The adjustment of movement relation between component |
| EP3183805A4 (en) * | 2014-08-18 | 2018-04-25 | Eddy Current Limited Partnership | Latching devices |
| US10065054B2 (en) | 2009-03-10 | 2018-09-04 | Eddy Current Limited Partnership | Braking mechanisms |
| US10110089B2 (en) | 2014-08-18 | 2018-10-23 | Eddy Current Limited Partnership | Tuning of a kinematic relationship between members |
| US10300397B2 (en) | 2013-12-16 | 2019-05-28 | Eddy Current Limited Partnership | Assembly to control or govern relative speed of movement between parts |
| US10532662B2 (en) | 2014-08-20 | 2020-01-14 | TruBlue LLC | Eddy current braking device for rotary systems |
| US10693360B2 (en) | 2014-12-04 | 2020-06-23 | Eddy Current Limited Partnership | Transmissions incorporating eddy current braking |
| US10940339B2 (en) | 2014-12-04 | 2021-03-09 | Eddy Current Limited Partnership | Energy absorbing apparatus |
| US10953848B2 (en) | 2015-12-18 | 2021-03-23 | Eddy Current Limited Partnership | Variable behavior control mechanism for a motive system |
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| US11628373B2 (en) | 2013-12-16 | 2023-04-18 | Eddy Current Limited Partnership | Assembly to control or govern relative speed of movement between parts |
| US11266917B2 (en) | 2013-12-16 | 2022-03-08 | Eddy Current Limited Partnership | Assembly to control or govern relative speed of movement between parts |
| US10603596B2 (en) | 2013-12-16 | 2020-03-31 | Eddy Current Limited Partnership | Assembly to control or govern relative speed of movement between parts |
| US10300397B2 (en) | 2013-12-16 | 2019-05-28 | Eddy Current Limited Partnership | Assembly to control or govern relative speed of movement between parts |
| US11437903B2 (en) | 2014-08-18 | 2022-09-06 | Eddy Current Limited Partnership | Latching devices |
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| US11632016B2 (en) | 2014-08-18 | 2023-04-18 | Eddy Current Limited Partnership | Tuning of a kinematic relationship between members |
| US10110089B2 (en) | 2014-08-18 | 2018-10-23 | Eddy Current Limited Partnership | Tuning of a kinematic relationship between members |
| US10873242B2 (en) | 2014-08-18 | 2020-12-22 | Eddy Current Limited Partnership | Tuning of a kinematic relationship between members |
| KR20210010643A (en) * | 2014-08-18 | 2021-01-27 | 에디 커런트 리미티드 파트너쉽 | Tuning of a kinematic relationship between members |
| CN107078623A (en) * | 2014-08-18 | 2017-08-18 | 涡流有限合伙公司 | The adjustment of movement relation between component |
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| EP3835610A1 (en) * | 2014-08-18 | 2021-06-16 | Eddy Current Limited Partnership | Tuning of a kinematic relationship between members |
| JP2017533685A (en) * | 2014-08-18 | 2017-11-09 | エディ・カーレント・リミテッド・パートナーシップ | Adjustment of kinematic relationship between members |
| US10532662B2 (en) | 2014-08-20 | 2020-01-14 | TruBlue LLC | Eddy current braking device for rotary systems |
| US10774887B2 (en) | 2014-12-04 | 2020-09-15 | Eddy Current Limited Partnership | Latch activation between members |
| US10940339B2 (en) | 2014-12-04 | 2021-03-09 | Eddy Current Limited Partnership | Energy absorbing apparatus |
| US11050336B2 (en) | 2014-12-04 | 2021-06-29 | Eddy Current Limited Partnership | Methods of altering eddy current interactions |
| US11009089B2 (en) | 2014-12-04 | 2021-05-18 | Eddy Current Limited Partnership | Latch activation between members |
| CN106999737A (en) * | 2014-12-04 | 2017-08-01 | 涡流有限合伙公司 | Locking activation between element |
| US11499596B2 (en) | 2014-12-04 | 2022-11-15 | Eddy Current Limited Partnership | Latch activation between members |
| US12009721B2 (en) | 2014-12-04 | 2024-06-11 | Eddy Current Limited Partnership | Eddy current brake configurations |
| US11114930B2 (en) | 2014-12-04 | 2021-09-07 | Eddy Current Limited Partnership | Eddy current brake configurations |
| US10693360B2 (en) | 2014-12-04 | 2020-06-23 | Eddy Current Limited Partnership | Transmissions incorporating eddy current braking |
| EP3226978A4 (en) * | 2014-12-04 | 2018-05-02 | Eddy Current Limited Partnership | Latch activation between elements |
| US11777391B2 (en) | 2014-12-04 | 2023-10-03 | Eddy Current Limited Partnership | Methods of altering eddy current interactions |
| US11992713B2 (en) | 2014-12-04 | 2024-05-28 | Eddy Current Limited Partnership | Energy absorbing apparatus |
| US11878651B2 (en) | 2015-12-18 | 2024-01-23 | Eddy Current Limited Partnership | Variable behavior control mechanism for a motive system |
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Effective date of abandoning: 20170111 |