Plural Unified Cores Having A Pole Winding Patents (Class 310/216.029)
  • Patent number: 8643246
    Abstract: The present invention comprises a stator core module, stator core assembly and process for assembling a stator core assembly to replace existing stator cores in electric power generators. First and second stator core modules are aligned such that one end of a fastener assembly in the second stator core module is nested in a counter-bore of the first stator core module and one end of a fastener assembly in the first stator core is nested in a counter-bore of the second stator core module.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: February 4, 2014
    Assignee: Siemens Energy, Inc.
    Inventors: David T. Allen, Victor A. Siegel, Jr.
  • Patent number: 7989991
    Abstract: A linear actuator is provided with an armature and a stator. The armature has at least two stacks of permanently magnetic rods one over another, the stacks being arranged at a predetermined distance from each other. The stator is at least partly produced from a soft magnetic material, and comprises at least two pairs of teeth with teeth opposite each other, each pair of teeth receiving one of the two stacks between them while forming an air gap. The stator has at least two magnetically conducting inner areas which are located between the two stacks and arranged at a predetermined distance from each other in the direction of motion of the armature. The inner areas are each at least partially surrounded by a substantially hollow cylindrical coil arrangement, the central longitudinal axis of which is oriented substantially transversely to the direction of motion of the armature.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: August 2, 2011
    Assignee: Compact Dynamics, GmbH
    Inventors: Andreas Gruendl, Bernhard Hoffmann
  • Patent number: 7772741
    Abstract: A wind turbine generator produces alternating current. The generator contains an inner cylindrical stator and an outer cylindrical rotating housing. The stator has a transverse row of molded magnetic flux members mounted on its exterior wall and a metal conductor running through a continuous transverse channel defined by the flux members. The rotating housing has a transverse row of permanent magnets mounted on the interior wall of the outer cylinder. Rotation of the housing causes the permanent magnets to induce magnetic fields in the flux members that induce an alternating current in the metal conductor.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: August 10, 2010
    Inventor: Norman P. Rittenhouse
  • Patent number: 7723891
    Abstract: A motor including a mounting shaft having a hollow channel and a bearing attached to each end, a cylindrical hub having a hollow core for the mounting shaft, and plural rows of plural Molded Magnetic Flux Channels with a hollow core and a channel forming a U-shaped recess and mounted the surface of the hub, each row corresponding to a motor phase. Each magnetic flux channel forms two pole pieces divided by the channel. The motor also includes plural phase windings, one passing through each row of plural Molded Magnetic Flux Channels, a rotating drum having plural rows of permanent magnets on an inner surface, each row pair corresponding to and aligned with one of the plural rows of Molded Magnetic Flux Channels. The rotating drum connected with the bearing, and drive electronics for driving the plural phase windings, wherein the plural Molded Magnetic Flux Channels increases torque and motor efficiency.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: May 25, 2010
    Inventor: Norman Rittenhouse