WO2014149167A2 - Appareil à réaction magnétique, assemblage et procédés associés d'optimisation d'entrée de commande cyclique - Google Patents

Appareil à réaction magnétique, assemblage et procédés associés d'optimisation d'entrée de commande cyclique Download PDF

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Publication number
WO2014149167A2
WO2014149167A2 PCT/US2014/011578 US2014011578W WO2014149167A2 WO 2014149167 A2 WO2014149167 A2 WO 2014149167A2 US 2014011578 W US2014011578 W US 2014011578W WO 2014149167 A2 WO2014149167 A2 WO 2014149167A2
Authority
WO
WIPO (PCT)
Prior art keywords
shuttle
permanent magnets
rotatable
permanent magnet
linear
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.)
Ceased
Application number
PCT/US2014/011578
Other languages
English (en)
Other versions
WO2014149167A3 (fr
Inventor
John W. Edwards
Robert M. Herrin
Jr. Johnny M. THARPE
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.)
Magnamotor LLC
Original Assignee
Magnamotor LLC
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 US13/838,412 external-priority patent/US8664816B1/en
Application filed by Magnamotor LLC filed Critical Magnamotor LLC
Publication of WO2014149167A2 publication Critical patent/WO2014149167A2/fr
Publication of WO2014149167A3 publication Critical patent/WO2014149167A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa

Definitions

  • the present invention generally relates to apparatus, assembly, and methods employing magnetic fields to provide a driving force, and more particularly to a method of using permanent magnets for enhancing power from a cyclic drive input.
  • Conversion Means discloses a magnetic motor using stationary magnets arranged with inverse polarity and another permanent magnet alternately movable within the field of the stationary magnets by a diverter, such as a solenoid, to convert a rotational movement to a linear movement.
  • rotary generators are well known and used to generate electric energy by movement of magnets within inductive coils.
  • the rotary generator has a plurality of inductive coils, a plurality of magnets inserted into the respective inductive coils and rotatable within the inductive coils, a mechanical assembly of magnets, and a motor generating and applying a movable force to the magnets through the mechanical assembly.
  • the invention employs a rotatable permanent magnet having a north pole and an opposing south pole favorably rotatable about an axis and between the opposing poles.
  • a shuttle confined to a linear movement generally parallel to the axis may include first and second fixed permanent magnets affixed to the shuttle, wherein the rotatable permanent magnet is carried there between.
  • Each of the first and second fixed permanent magnets has a north pole and an opposing south pole with the axis extending there between.
  • the permanent magnets are positioned such that rotation of the rotatable permanent magnet results in repelling and attracting of the first and second fixed permanent magnets, alternately, and thus a linear reciprocating movement of the shuttle is induced.
  • This invention includes: a favorable rotation method achieving a reduced rotation torque; a progressively variable with angular position linear-to- rotational force converter; an energy storage device for capturing the cyclic energy impulse generated by the magnetic reaction; a novel method for increasing the output force of the linear magnetic reaction by focusing the magnetic flux field of the
  • FIG. 1 is a perspective view of one embodiment of the invention
  • FIG. 2 is a perspective view of a multi axis embodiment of the invention.
  • Fig. 2A is a partial perspective view of the ordered pairs of rotational and fixed permanent magnets of the apparatus of Fig. 2, with the bracket removed to show internal details;
  • Fig. 2B is a top view of an exemplary set of the ordered pairs of rotational and fixed permanent magnets of Fig. 2;
  • FIG. 3 is a partial enlarged perspective view illustrating the linear to rotary output apparatus of FIG. 2;
  • FIG.4 is a partial enlarged perspective view illustrating the drive apparatus of FIG. 2;
  • FIG. 5 is a perspective view of a permanent magnet with shaped focusing plates
  • FIG. 6 is a perspective view of a set of permanent magnets in a Halbach array
  • FIG. 7 is a graph of the torque of rotation versus aspect ratio of an ordered pair of rotational and fixed permanent magnets of the apparatus of Fig. 2;
  • FIG. 8 is a graph of the torque of rotation versus the position of the shuttle of the apparatus of Fig. 2.
  • the steps can be carried in any order or simultaneously (except where the context excludes that possibility), and the process can include one or more steps which are carried out before any of the defined steps, between two of the defined steps, or after all of the defined steps (except where the context excludes that possibility).
  • FIG. 1 one embodiment in keeping with the teachings of the present invention directed to motion conversion is herein described, by way of example, as an apparatus 10 comprising rotatable permanent magnets 12, 14 each having a north pole 15 and an opposing south pole 16 aligned within a plane 18.
  • the rotatable permanent magnets 12, 14 are rotatable about an axis 20 within the plane 18 and lying between the opposing poles 15, 16.
  • a shuttle 22 is confined to a linear reciprocating movement 24 generally parallel to the axis 20.
  • the rotatable permanent magnets 12, 14 are positioned between first and second fixed permanent magnets 26, 28 affixed to opposing first and second sides 30, 32 of the shuttle 22 forming a permanent magnet axis group 50.
  • Each of the first and second fixed permanent magnets 26, 28 has a north pole 34 and an opposing south pole 36, wherein the axis 20 extends
  • the magnets are positioned such that rotation of the rotatable
  • desirable improvements include at least two opposing rotatable permanent magnets 12, 14.
  • the rotating permanent magnets 12, 14 are located on the first and second sides 30, 32 of shuttle 22 operable with drive 38 for rotation thereof with a single fixed permanent magnet 26 located between rotatable permanent magnets 12, 14 or a pair of fixed permanent magnets 26, 28 located between rotatable permanent magnets 12, 14.
  • improved efficiency results when the poles 34, 36 of the first fixed permanent magnet 26 are 180 degrees out of phase with the poles 34, 36 of the second permanent magnet 28.
  • converting a direction of motion may include converting a linear motion to a rotary motion and converting a rotary motion to a linear motion
  • embodiments of the invention as herein described are directed to improving efficiencies when converting a rotary motion to a linear motion.
  • the rotatable permanent magnet illustrated and described with reference again to FIG. 1 is operable with a drive 38 for rotation thereof in affecting a linear movement 24 of the shuttle 22 as a result of the magnetic
  • the drive 38 input is magnetically coupled to the shuttle 22.
  • the linear movement 24 of the shuttle 22 is a function of the shuttle load and the input rate of the drive 38.
  • the rotating motion of the drive 38 may be continuous or cyclic.
  • the drive 38 includes an electric motor not shown, but will be understood that other well known drives may be employed without departing from the teachings of the invention.
  • Efficiencies have been shown to increase when employing multiple permanent magnet axis groups 50.
  • One embodiment of a multiple permanent magnet axis groups 50 is illustrated with reference to FIG. 2 for an apparatus 100 for converting cyclic rotary motion provided by the drive 38 to the reciprocating linear motion 24 of the shuttle 22.
  • the apparatus 100 is herein described as including a base 64 and the drive 38 affixed to the base.
  • the drive 38 rotates a drive shaft 66 (see Fig. 2A) about its axis coincident with the axis 20.
  • a plurality of rotatable auxiliary shafts 68 are carried by a bracket 70 affixed to the base 64. As herein described by way of example, twelve auxiliary shafts 68 are employed. Each of the auxiliary shafts has its ends 72, 74 extending through first and second sides 76, 78 of the bracket 70.
  • a gear assembly 80 (see Fig. 2A) is operable between the drive shaft 66 and the auxiliary shafts 68 for rotation.
  • a plurality of rotatable permanent magnets 12, 14 is attached to the plurality of auxiliary shafts 68.
  • Each of the rotatable permanent magnets 12, 14 are carried at each of the ends 72, 74 of the auxiliary shafts 68 for rotation by their respective auxiliary shafts 68.
  • the plurality of rotatable magnets 12, 14 located on the auxiliary shafts 68, coincident with the plurality of fixed permanent magnets 26, 28 are concentrically arranged with axis 20.
  • the magnetic field of the fixed magnet 26A interacts with the magnetic field of rotatable magnet 12A
  • the magnetic field of the fixed magnet 28A interacts with the magnetic field of rotatable magnet 14A; forming permanent magnet axis group 50A.
  • the magnetic field of the fixed magnet 26B interacts with the magnetic field of rotatable magnet 12B; the magnetic field of the fixed magnet 28B interacts with the magnetic field of rotatable magnet 14B, forming permanent magnet axis group 50B and the like for the balance of the magnets used in the apparatus 100.
  • group 50A is shown in Figure 2B.
  • the bearings 56 are attached to the base 64 and the shuttle 22 is slidably guided by the bearings for the linear movement 24 generally parallel to the axis 20.
  • a plurality of fixed permanent magnets 26, 28 is affixed to the shuttle 22, wherein a fixed permanent magnet 26, 28 is positioned on the shuttle for interacting with a cooperating rotatable permanent magnet 12, 14 carried at the end of the auxiliary shafts 68.
  • the apparatus 100 further comprises first and second shock absorbers 44A, 44B, and 46A, 46B affixed to the base 64 on opposing sides of the bracket 70 with each of the shock absorbers operable for receiving an impact of the shuttle during the reciprocating movement 24 and each shock absorber absorbs an impact by overcoming an inertia provided by the shuttle and delivers a recoiling force to the shuttle 20.
  • a pair of opposite facing directional clutches 11 OA, 110B receive the force from the shuttle linear motion 24 thereby receiving power from the shuttle as it moves in each direction.
  • the directional clutches 11 OA, 110B deliver the linear power received as input torque to the rotary shaft 112 that is connected through a gear system 130 to shaft 212 that supplies rotating torque to a rotary generator 250 and an energy storage fly wheel 200.
  • the attachment of the shuttle 22 to the directional clutch 110A is by a bar link 102A
  • the attachment of the shuttle 22 to the directional clutch 110B is by a bar link 102B (not shown).
  • Each of the directional clutches 11 OA, 110B act over an arc to allow the shuttle to deliver its energy in an optimized method.
  • mechanical devices such as rack and pinion gears may be used to deliver the linear power of the shuttle 22 to the pair of directional clutches 11 OA, 110B.
  • the energy storage fly wheel 200 receives the cyclic impulse torque from shaft 212, storing the energy and providing a continuously available flow of energy for conversion through the rotary generator 250 and the drive system 238 as shown in Fig. 4.
  • the rotary generator 250 provides a variable energy load to system 100 allowing energy to be directed for desired usage as well as to prevent undesirable acceleration of the shuttle 22.
  • cyclic drive input is not directly coupled to the linear motion 24 of the shuttle 22. They are related by a function of the shuttle position, the load of the shuttle, and the point of engagement of the cyclic drive input to the plurality of rotating magnets 12,14.
  • the magnetic fields of the permanent magnets 12, 14, 26, 28 are focused in a desired direction by a magnetic focusing shoe 86 placed onto each of the poles of the permanent magnets 12, 14, 26, 28.
  • the magnetic focusing shoes 86 are oriented to increase the magnetic flux between permanent magnet pairs 12, 26 and 14, 28.
  • the magnetic focusing shoes 86 are made of a magnetic material such as steel and contoured to increase the magnetic flux direction 87 (shown as an arrow).
  • the installation of magnetic focusing shoes 86 has increased the force between the permanent magnets 12, 14, 26, 28 by more than 300%.
  • the use of rotating magnets as herein described has resulted in a prolonged magnetic strength for all the permanent magnets.
  • the torque 300 required to rotate the rotatable permanent magnets 12, 14 when in the magnetic field of fixed permanent magnets 26, 28 varies with the aspect ratio 92 of the permanent magnets and the distance 93 between the magnets.
  • Aspect ratio 92 is defined as the height of the permanent magnet 280 divided by the distance between the outermost sides 285 of the focused permanent magnet 90.
  • the curves of the graph show that for a set distance between magnets of equal strength, a high aspect ratio magnet 92A requires a higher peak torque for rotation, but provides a reduced torque passing through ninety degrees of rotation 265.
  • the torque reduction is a result of the increase in the angular air gap 290 (not shown) between the fixed and the rotating magnets reducing their magnetic coupling.
  • a permanent magnet set with square aspect ratio 92C has a lower torque that peaks as the magnet rotates through ninety degrees 265.
  • the peak torque required for rotation of a given aspect ratio 92 is at its lowest value as the distance between the magnets 12, 26 and 14, 28 are approximately equal. This should be near the center of the shuttle 22 motion 24.
  • the curve of torque 300 shows that this minimum torque 300B is offset from the center point 275 due to the difference in the attract versus the repel forces of the magnets 12, 26 and 14, 28. This offset will cycle to opposing sides of the center point 275 as the rotatable magnets rotate and change the direction of attract and repel of the permanent magnet axis groups 50.
  • the input torque required to rotate the rotatable permanent magnets is minimized by the use of high aspect ratio magnets and initiating the cyclic drive to begin rotation as the shuttle passes near the center point of the shuttle 22 motion 24.
  • the cyclic drive input control is a position based function where a variable start command is needed for optimization. In the current embodiment, this control function is supplied by a
  • programmable controller receiving a signal of the position of the shuttle.
  • programmable controller commands the clutch of drive 238 to initiate a rotation cycle and deliver torque 300 from flywheel 200 to the shaft 66.
  • a mechanical control system using cams and rate sensors may be used to provide the desired control.
  • a servo drive system provides the cyclic drive input to rotate the rotatable permanent magnets.
  • a motor 240 is affixed to the base 64 and provides torque through overrunning clutch 202 for establishing rotation of the energy storage device 200 during start up of the system 100 and may provide additional energy to the system 100 for continuous operation.
  • Rotary generator 250 is operable with the shuttle 22 for generating electrical power resulting from the linear movement 24 of the shuttle when the cyclic drive 238 is being cycled and the motor 240 when it is delivering torque 300 to shaft 212 through overrunning clutch 202.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

L'invention concerne un aimant permanent tournant autour d'un axe s'étendant entre les pôles opposés nord et sud. Le champ magnétique de l'aimant permanent tournant entre en interaction avec les champs magnétiques transportés par une navette pour repousser et attirer les aimants permanents fixes, et fournissant un mouvement alternatif linéaire de la navette en réponse à un mouvement de rotation favorable de l'aimant permanent tournant au niveau auquel la force du mouvement linéaire est capturée par un dispositif de stockage d'énergie.
PCT/US2014/011578 2013-03-15 2014-01-15 Appareil à réaction magnétique, assemblage et procédés associés d'optimisation d'entrée de commande cyclique Ceased WO2014149167A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/838,412 2013-03-15
US13/838,412 US8664816B1 (en) 2010-09-01 2013-03-15 Magnetic reaction apparatus, assembly and associated methods for optimization of a cyclic drive input

Publications (2)

Publication Number Publication Date
WO2014149167A2 true WO2014149167A2 (fr) 2014-09-25
WO2014149167A3 WO2014149167A3 (fr) 2015-03-12

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PCT/US2014/011578 Ceased WO2014149167A2 (fr) 2013-03-15 2014-01-15 Appareil à réaction magnétique, assemblage et procédés associés d'optimisation d'entrée de commande cyclique

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Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1592065A (fr) * 1967-01-25 1970-05-11
US3773439A (en) * 1972-09-01 1973-11-20 F Sheridan Reciprocating in-line magnetic actuator
US4207773A (en) * 1976-11-04 1980-06-17 Stahovic Robert F Magnetic piston machine
US6203288B1 (en) * 1999-01-05 2001-03-20 Air Products And Chemicals, Inc. Reciprocating pumps with linear motor driver
US20080277939A1 (en) * 2004-03-15 2008-11-13 Georgia Tech Research Corporation Linear Generator and System to Capture Energy from Irregular Linear Movement
US7151332B2 (en) * 2005-04-27 2006-12-19 Stephen Kundel Motor having reciprocating and rotating permanent magnets
GB0521191D0 (en) * 2005-10-19 2005-11-23 Carey Joseph Permanent magnet energy conversion system
US20070120432A1 (en) * 2005-11-25 2007-05-31 Vaden David R Axial magnetic cam
US8508089B2 (en) * 2010-09-01 2013-08-13 Magnamotor, Llc Magnetic drive motor assembly and associated methods

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WO2014149167A3 (fr) 2015-03-12

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