WO2012114353A1 - Moteur primaire à aimants permanents - Google Patents

Moteur primaire à aimants permanents Download PDF

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Publication number
WO2012114353A1
WO2012114353A1 PCT/IN2012/000119 IN2012000119W WO2012114353A1 WO 2012114353 A1 WO2012114353 A1 WO 2012114353A1 IN 2012000119 W IN2012000119 W IN 2012000119W WO 2012114353 A1 WO2012114353 A1 WO 2012114353A1
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WO
WIPO (PCT)
Prior art keywords
rotor
stator
magnets
magnet
repulsion
Prior art date
Application number
PCT/IN2012/000119
Other languages
English (en)
Inventor
B. Gnaneshwar PETTUKOLA
Original Assignee
Pettukola B Gnaneshwar
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 Pettukola B Gnaneshwar filed Critical Pettukola B Gnaneshwar
Publication of WO2012114353A1 publication Critical patent/WO2012114353A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K53/00—Alleged dynamo-electric perpetua mobilia

Definitions

  • FIELD The Invention pertains to the field of permanent magnet motor devices; using the magnetic fields created solely by permanent magnets; to produce motive power.
  • the domain theory is, in a sense, a "unifying" theory, since it relates magnetism produced by permanent magnets to magnetism produced by electromagnets. According to this theory, all magnetism is produced by unbalanced spins or by electron flow. In a permanent magnet, the electron unbalance occurs at the domain level and is internal to the material. In an air-core electromagnet, the electron flow is in a conductor or wire. In the Earth magnetism is produced by the electron flow in the molten iron core.
  • An Electric Motor is a device which converts Electrical Energy to Mechanical Energy.
  • an electrical current carrying conductor When an electrical current carrying conductor is placed in a magnetic field a force is exerted upon it. Due to the rapid switching of direction of the widely available alternating electric current the forces of magnetic repulsion and attraction cause the rotation of the armature or its displacement along a linear path.
  • Permanent magnets are known to be used in many conventional electric motors either in the armature or stator components. Such motors require electromagnetic fields to act upon the fields produced by permanent magnets and rapid switching sequences to intermittently energise the electro magnets and manipulate the orientation of magnetic fields to produce motive power. Magnetic fields of permanent magnets have similar attractive and repulsive forces to those generated by electromagnets.
  • U.S.Patent nos.4,074, 153 obtained by Baker, deceased et al., and 4,215,330 by Hartmann disclose several theoretical concepts which help to understand/the effects of magnetic fields on other magnetic fields of permanent magnets but do not claim to have a running rotary or linear device.
  • U.S.Patent no.4,151,431 by Johnson discloses a stator and rotor configuration whereby it is claimed that net rotational energy can be generated.
  • U.S.Patents 4,877,983 and 5,402,021 also by Johnson and more recent U.S. Patents granted of numbers 7,385,325; 7,265,471 and 7,148,596 and applications filed with the U.S.
  • the practice of the invention provides proper geometry and choice of materials and concentration of magnetic fields to utilize the force of magnetic fields of permanent magnets to enable the device to act as an engine or a prime mover.
  • stator magnets In the practice of the invention several rectangular permanent plate magnets called stator magnets are in a spaced relationship with one or more rectangular permanent square rod magnets of greater thickness called rotor magnets.
  • the rotor magnets are mechanically connected rigidly around a centre shaft.
  • the gap between each of the stator magnets and each of the rotor magnets when in close proximity to each other is known as the working air gap.
  • stator magnets' fields engage the fields of the rotor magnets such that the rotor magnets are repelled strongly and gain enough momentum to enter subsequent stator magnet fields in repulsio mode to reach positions exactly identical with respect to the stator magnets from which they were repelled.
  • Each set of stator magnets is mounted on an arm that pivots around an axis that is parallel to the axis of the rotor shaft which is the main centre shaft.
  • the stator arms enable the stator magnets to enter and exit rotor magnets' orbit in a manner which is precisely coordinated with rotor rotation.
  • a repulsion dampening device that is invented by this inventor in the form of a highly permeable ferromagnetic metal plate placed on the pole face of the rotor magnet is installed on each rotor magnet assembly.
  • This and a unique trajectory of entry conceived by this inventor allows the stator magnets to enter the rotor magnets' fields in repulsion mode with reduced repulsion prior to and during their movement in the air gap and enjoy great repulsion as the rotor magnets exit the stator magnet fields.
  • the velocity and momentum the rotor magnets gain when they accelerate due to repulsion as they exit from the fields of one set of stator magnets is greater than the retardation they suffer during and prior to their entry into the fields of the next set of stator magnets.
  • This quantum of excess energy for each rotor magnet is multiplied by the number of rotor magnet assemblies mounted on the rotor shaft engaging the several stator magnets at any given moment and is harvested from the centre shaft for useful power output.
  • Repulsion Dampening Device The repulsion due to the flux emanating from the pole face of the rotor magnet is dampened by a highly permeable metal plate/pole piece covering the pole face and this plate which is in "L" shape is further extended by covering the surface between the two poles of the square rod rotor magnet to enable flux from one pole face to travel faster to the other pole face thereby reducing the flux that causes repulsion in a location that causes deceleration of the device.
  • the thickness of this plate is such that when the stator magnet's pole face is in close proximity with this plate the stator magnet is attracted to this plate despite the repelling flux emanating from the like pole face of the rotor magnet behind this plate.
  • the thickness of this plate is not too much so as to deter the repulsion the stator magnet exerts on the rotor magnet when required. Therefore the thickness of this repulsion dampening device ensures that the stator magnet enjoys substantially reduced repulsion while it moves in a plane parallel to rotor pole face at a distance of say not more tha one fourth of a millimeter from this plate and when the stator pole face moves beyond this distance of say one fourth of a millimeter the rotor is immediately repelled by the stator field in the direction perpendicular to stator pole face. This is because the attractive force between the stator pole face and the plate/pole piece is strong only when stator pole face is in close proximity with the plate. When the stator pole moves to a distance greater that one fourth millimeter from the plate the repulsion from the rotor pole behind this plate overcomes the attractive force between stator pole and the plate thereby causing rapid acceleration of the rotor.
  • Twin Magnet Rotor To further reduce flux in the location where it hampers rotation of rotor another square rod magnet of the same shape and size as the Rotor magnet is located adjacent to the existing one such that its unlike pole faces the pole face of the existing rotor magnet. Both these pole faces are at right angles to each other and their pole faces form an "L". This ensures the flux emanating from the primary Rotor magnet is substantially directed towards the secondary Rotor magnet thereby reducing to a great extant the deceleration of the stator magnet due to repulsion as it enter the primary Rotor magnet field from the side opposite to the second Rotor magnet.
  • stator magnet must enter the rotor field in a pathway parallel to rotor pole face and exit rotor field in a pathway perpendicular to rotor pole face. While the repelling pole of the stator magnet is in close proximity of not more than one fourth of a millimeter to the rotor pole face it is attracted to the rotor pole face because of the above mentioned repulsion dampening device/pole piece. When the stator pole face is further way that is greater than one fourth of a millimeter from rotor pole face it is repelled strongly.
  • stator magnet must enter rotor magnet field in a pathway parallel to rotor pole face and this pathway must ensure that the repelling pole face of the stator magnet is in very close proximity to the rotor pole face during its movement along air gap. While stator pole face is moving along the air gap rotor repulsion will substantially decrease due to the repulsion dampening fcrro-magnetic/steel plate.
  • stato magnet In view of the nature of magnetic flux always emanating from the surface of a magnet or a pole piece perpendicular to such a surface the comer edge of the pole face will have a minimum of flux in its proximity. Therefore to minimize repulsion that the stator magnet suffers prior to movement in the air gap the stato magnet must approach the rotor magnet with its pole face facing the corner edge of the rotor magnet. Further due to the secondary rotor magnet in close proximity drawing the flux towards itself due to its unlike pole in close proximity; such an entry of the stator magnet into rotor field from the side that is away from the secondary rotor magnet ensures reduced repulsion.
  • the rotor magnet To maximize repulsion while exiting the stator field the rotor magnet must move along the pathway which is perpendicular to the pole face of the stator magnet. Further the pole face of the secondary rotor magnet must be at an angle that faces away from the stator pole face as the rotor exits stator magnetic field. The direction the stator magnet faces must be as far away as possible from the secondary rotor magnet pole face. The unique trajectory is computed taking into consideration all these factors
  • Rotary Movement In practice the kinematic model of the rotor magnet entering parallel to pole face arid exiting in a trajectory perpendicular to pole face thereby taking a sudden right angle turn will result in energy losses due to inertia and friction. Therefore a circular movement is designed for the rotor magnet.
  • the stator magnets are mounted around a centre shaft.
  • the stator magnets are actuated to and from the orbital pathway of the rotor magnets such that each of the stator magnets enter and exit the rotor fields in accordance with the unique trajectory above described.
  • the stator magnets are actuated through a cam and followers that may or may not be spring driven.
  • Fig.l is a view of a rectangular permanent magnet which is to be located in the stator arm several of which collectively make up the stator. In view of the thickness of this magnet being low it can be considered a plate. As is shown in Fig.l this permanent plate magnet is magnetized across width. It is rare earth in material of construction.
  • Fig.2 is a view of a rectangular permanent magnet which is in the shape of a square rod the thickness and width of which is same. Its length is much greater than its width.
  • These square rod magnets are to be placed around a centre shaft and are collectively called the rotor. As is shown in Fig.2 this permanent square rod magnet is magnetized across width. It is rare earth in material of construction.
  • Fig.3 (a) & (b) are views of the rotor magnet which is attached to a ferro-magnetic/mild steel "L" shaped plate/pole piece.
  • This plate/pole piece is a repulsion dampening device which redirects the flux/ magnetic field of the magnet to the side it is attached resulting in substantially diminished flux in area "X"
  • Fig.4 is a view of the rotor magnet clad with the "L" shaped pole piece with its field engaging the field of the stator magnet with like poles facing each other.
  • the stator magnet is at a position of very close proximity not greater than one fourth of a millimeter with the rotor magnet and though like poles repel each other the "L" shaped pole piece that is clad on the rotor magnet being made of mild steel attracts the stator magnet and this attraction overcomes the repulsion between like poles.
  • Fig.5 is a view of the rotor magnet clad with the "L" shaped pole piece with its field engaging the field of the stator magnet with like poles facing each other but at a distance just greater than one fourth of a millimeter. From this distance and beyond the repulsion between like poles is greater than the attraction between the "L" shaped pole piece and stator magnet thereby causing strong repulsion.
  • Fig.6 is a view of the rotor magnet shown in Fig.5 which is the primary rotor magnet (s) with the secondary rotor magnet (t) of exactly the same dimensions placed adjacent to each other such that the unlike pole faces are at right angles to each other thereby increasing the flux density in the area between the unlike poles of the two rotor magnets and decreasing the flux density in the area "X" which the stator magnet pathway covers just prior to its entry into the working air gap.
  • Fig.7 depicts the trajectory taken by the stator magnet as it approaches the rotor magnet; this segment being marked (p); and during its traverse along the air gap parallel to rotor magnet pole face; this segment being marked (q); and its exit from rotor magnet field being perpendicular to rotor magnet pole face; this segment being marked (r).
  • Fig.8 is an exploded perspective view of the entire assembly depicting the primary centre rotor shaft (a); around which are inserted the rotor top plate (b) and rotor bottom plate (c); in which are located fou rotor holder columns (d); to which are fastened the primary (s) and secondary rotor magnets. Also are seen the assembly frame bottom plate (e); the assembly frame top plate (f); and four pillars (g) comprising the main frame of the assembly all of which rests on four legs (h).
  • the four stator shafts are marked (i); their corresponding arms are marked (j) which are mounted on the stator shafts.
  • the four stator bushes that are each mounted on the four stator shafts are marked (k); the four followers that are each mounted on the four stator bushes are marked (1) and they run in a groove machined to extreme precision in the cam plate (m).
  • the centre rotor shaft and the four stator shafts are held in place by ten bearings (n) and five bearing lock bushes in the bottom plate (o) and five bearing lock bushes in the top plate (o)
  • Fig.9 is a top view, along axis of the centre rotor shaft , of the entire assembly wherei are seen the centre rotor shaft (a); the four pillars from top (g); the top plate of the frame(f); four rotor holder columns (d); to which are fastened the primary (s) and secondary (t) rotor magnets; four stator bushes that are each mounted on the four stator shafts are marked (k); the four followers that are each mounted on the four stator bushes are marked (1) and they run in a groove machined to extreme precision in the cam plate (m); the arms which are mounted on the stator shafts are marked (j). The stator magnets are marked (u) and the "L" shaped metal plate / pole piece is (v).
  • Fig.10 is a view wherein the primary rotor magnet has moved from position (rl) (as depicted in Fig.14) to position (r2) while the stator pole face continues to dwell at position (si )
  • Fig.11 is a view wherein the primary rotor magnet has further moved to position (r3) while the stator arm has carried the stator magnet to position (s2)
  • Fig.12 is a view wherein the subsequent primary rotor magnet has moved to position (r4) while the stator arm continues to dwell at point (s2)
  • Fig.13 is a view wherein the primary rotor magnet has further moved to position (r5) while the stator arm has carried the stator magnet to a position (s3)
  • Fig. 14 is a view wherein the primary rotor magnet has further moved to position (rl) and the stator has carried the stator magnet to the positio (si) thereby completing the cycle of 90 degrees of rotor rotation.
  • Fig.3(a) & (b) are views wherein the highly permeable "L" shaped pole piece covers the entire working pole face of the primary rotor magnet and substantially redirects the magnetic flux through its body to the opposite pole on the opposite side of the magnet because the permeability of the plate is a minimum of 10,000 times more permeable than air. This achieves a substantially diminished flux in area "X" all along the corner edge which is the entry area of the stator magnet into the rotor magnet field in repulsion mode. If not for this repulsion dampening the stator magnet will suffer massive repulsion thereby causing strong deceleration of the rotor.
  • Fig.4 is a view of the rotor magnet clad with the "L" shaped pole piece with its field engaging the field of the stator magnet with like poles facing each other.
  • the stator magnet has come to a position of close proximity with the rotor magnet and though like poles repel each other the pole piece that is clad on the rotor magnet being made of steel attracts the stator magnet and this attraction overcomes the repulsion between like poles.
  • Fig.5 is a view of the rotor magnet clad with the "L" shaped pole piece with its field engaging the field of the stator magnet with like poles facing each other and thereby causing repulsion.
  • positions as depicted in this view provide for maximum engagement/repulsion of the rotor as against the stator. Also these positions of the rotor and stator with respect to each other are at the commencement of the power phase wherein the rotor derives most of its acceleration. That is the distance between the rotor and stator magnets has increased to more than one fourth of a millimeter which is the threshold beyond which the net repulsion is greater than attraction.
  • Fig.6 is a view of the rotor magnet shown in Fig.4 & Fig.5 which is the primary rotor magnet (s) co-located with the secondary rotor magnet (t) of exactly the same dimensions placed adjacent to each other such that their unlike poles are at right angles to each other and in close proximity.
  • This results in the flux emanating from the primary rotor magnet substantially flowing towards the secondary rotor magnet resulting in further diminishing the flux in area "X" and in the process concentrating the flux in the area close to the centre of the primary magnet (s) pole face where it is needed most.
  • Fig.7 shows the movement of the stator magnet; in the working of the device the Rotor magnet is moving simultaneously.
  • the relative movement of the Stator magnet with respect to the Rotor magnet is only depicted in this figure in order to enable the viewer to understand the interaction between the stator and rotor magnets.
  • the stator magnet's movement in the initial portion of segment (p) it is attracted towards the unlike pole of the rotor magnet located on the far- side due to its pole face pointing in that direction.
  • Flux emanating from any surface does so perpendicular to such surface resulting in low flux density at the corner edge of the rotor magnet at the area marked (X). Hence this is chosen as the point of entry of the stator magnet into the rotor magnet field. It also encounters some resistance as it traverses in segment (q) during its movement parallel to pole face of rotor magnet.
  • This resistance/repulsion in segment (q) is not in the direction perpendicular to the rotor surface and away from the pole face of the rotor magnet because the attraction to the steel pole piece/ plate is, during this segment, overcoming its repulsion against the rotor magnet and because it moves parallel to pole face of rotor magnet thereby staying in the same level in the force gradient pertaining to the repelling field of the rotor magnet.
  • this resistance in segment (q) is due to the force gradient that exists from the edge of the primary rotor magnet pole face to the centre of its pole face.
  • stator pole never faces the tmlike pole of the secondary rotor magnet during the rotor's exit pathway from stator magnetic field. This is to preven deceleration during the power phase when rotor accelerates.
  • segment (r) The repulsion during the power phase that is during relative movement depicted by segment (r) is so great that the rotor is accelerated to gain enough momentum to exit stator field and reach the subsequent stator and enforce the stator to reach the same relative position that is when segment (q) ends and segment (r)commences.
  • This cycle is continuously repeated to enable rotor rotation with adequate motive force.
  • Fig.8 is an exploded perspective view wherein is depicted the various components of the assembly.
  • the stator magnets marked (u) enter and exit the orbit of the rotating rotor magnets marked (s) in extremely precise coordination with rotor rotation.
  • This is enabled by the cam plate marked (m) which contains a groove in which run the cam followers marked (1) that are mechanically connected to stator shafts marked (i) which hold the stator arms marked (j) and stator magnets marked (u).
  • the cam plate groove is machined to such great precision that the trajectory taken by the stator magnets relative to the primary rotor magnets is exactly as depicted in Fig.7.
  • Fig.9 is a top view clearly depicting the cam plate and the precisely machined groove in which run the cam followers (1) which are mechanically rigidly connected to the stator arm and magnets.
  • the function of the cam plate (m) and the groove machined therein is to enable the stator arms (j) carrying the stator magnets (u) to oscillate in precise coordination with rotor rotation.
  • the cam plate is rigidly inserted around the rotor centre shaft (a); as and when the centre shaft rotates the cam plate rotates and the groove in the cam plate in which run the cam followers (1) ensures stator oscillation in close coordination. This ensures the relative movement of the stator magnet to the rotor magnets as depicted in the Fig. 10 to 14.
  • Fig.14 depicts the point of commencement of the cycle during which the stator magnets exercise strong repulsion upon the rotor magnet and the rotor magnet accelerates rapidly to exit stator field and reenter the field of a subsequent stator to reach the same position as depicted in Fig.14.
  • the stator magnet in positio (si) has its like pole facing the like pole of the primary rotor magnet in position (rl) and is at a distance just greater than one fourth of a millimeter from the surface of the "L" shaped pole piece from whic point the attraction the stator magnet experiences with the "L" shaped pole piece is overcome by the repulsion it experiences from the primary rotor magnet. Therefore this position is one in which the repulsion is maximum.
  • Fig.10 is a view wherein the rotor magnets have moved from position (rl) to position (r2) that is through the segment (r) as depicted in Fig.7.
  • the stator continues to remain iii positio (si) as it exerts repulsion on the rotor. This repulsion is more than adequate to eject the rotor out of stator field and enforce its reentry into the subsequent stator field through the unique pathway as depicted in Fig.7.
  • Fig.ll is a view wherein the rotor magnets have moved from position (r2) to position (r3) and the stator has moved to position (s2). This position of the stator allows the subsequent set of rotor magnets to continue movement in its orbit without hindrance. This subsequent set of rotor magnets is not shown in this figure.
  • Fig.12 is a view wherein the subsequent set of rotor magnets have moved to position (r4) and the stator has continued to dwell in position (s2). From this position the stator can reenter rotor orbit without being hindered by the rotor magnets.
  • Fig.13 is a view wherein the rotor magnets have moved from positio (r4) to position (r5) and the stator has moved to position (s3).
  • the stator while it is traversing from (s2) to a few millimeters from (s3) is gently accelerated by the attraction between its pole face and the unlike pole of the primary rotor magnet.
  • the like pole field exerts repulsion though dampened by the "L" shaped pole piece.
  • FIG. 14 is a view wherein the rotor magnets have moved from position (r5) to position (rl) and the stator has moved from position (s3) to position (si) thus completing the cycle corresponding to every ninety degrees rotation of the rotor..
  • stator pole face from (s3) to (si) it adheres to a pathway parallel to the surface of the "L" shaped pole piece at a distance not greater than one fourth of a millimeter as depicted by segment (q) in Fig.7.
  • segment (q) in Fig.7.
  • the attraction between the "L" shaped pole piece and the stator pole is greater than the repulsion between the like poles of the rotor and stator. Therefore the rotor does not suffer net repulsion or at the least it suffers a minimum repulsio with respect to stator pole. This enables movement of stator from (s3) to (si) with relative ease.
  • stator reaches the point where segment (q) ends and segment (r) commences as depicted in Fig.7 with relative ease and ready to commence the next cycle of interaction between rotor and stator.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

L'invention porte sur un moteur primaire à aimants permanents comprenant des aimants permanents montés sur un jeu de bras, qu'on appelle collectivement le stator, qui attaquent un jeu d'aimants permanents montés sur un ensemble arbre central/induit appelé le rotor, avec pour résultat un mouvement rotatif ou linéaire continu unidirectionnel de l'ensemble rotor/induit qui est dû au fait que les aimants du stator entrent dans l'orbite ou la trajectoire magnétique du rotor et en sortent dans une coordination précise avec la rotation/le mouvement du rotor, de telle sorte que les champs magnétiques du stator repoussent les aimants du rotor en imprimant une accélération notable au rotor/induit qui est supérieure à celle nécessaire pour que les aimants du rotor sortent des champs magnétiques du stator et y rentrent dans un mode de répulsion en subissant une décélération pendant la rentrée qui est plus faible que l'accélération dont ils ont bénéficié pendant la sortie grâce au fait qu'ils respectent une trajectoire unique par rapport au stator ; un dispositif d'atténuation de la répulsion et une configuration d'aimants de rotor par paires ; de cette façon, leur sortie et leur rentrée permettent à l'ensemble rotor/armature mis en mouvement continu de produire une force motrice utile.
PCT/IN2012/000119 2011-02-23 2012-02-21 Moteur primaire à aimants permanents WO2012114353A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN526/CHE/2011 2011-02-23
IN526CH2011 2011-02-23

Publications (1)

Publication Number Publication Date
WO2012114353A1 true WO2012114353A1 (fr) 2012-08-30

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PCT/IN2012/000119 WO2012114353A1 (fr) 2011-02-23 2012-02-21 Moteur primaire à aimants permanents

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018087772A1 (fr) * 2016-11-09 2018-05-17 Mohandas Achal Machine de génération de moment unidirectionnel
IT201900005404A1 (it) * 2019-04-09 2020-10-09 Manieri Massimo Motore a propulsione magnetica

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002101908A1 (fr) * 2001-06-12 2002-12-19 Hugo Starri Moteur magnetique
US20030234590A1 (en) * 2002-06-19 2003-12-25 Gitzen Christopher Mark Magnetic motor apparatus and method
CN101594099A (zh) * 2008-05-31 2009-12-02 金银龙 直斥式永磁铁转子发动机

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002101908A1 (fr) * 2001-06-12 2002-12-19 Hugo Starri Moteur magnetique
US20030234590A1 (en) * 2002-06-19 2003-12-25 Gitzen Christopher Mark Magnetic motor apparatus and method
CN101594099A (zh) * 2008-05-31 2009-12-02 金银龙 直斥式永磁铁转子发动机

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018087772A1 (fr) * 2016-11-09 2018-05-17 Mohandas Achal Machine de génération de moment unidirectionnel
IT201900005404A1 (it) * 2019-04-09 2020-10-09 Manieri Massimo Motore a propulsione magnetica

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