Patents by Inventor Duane Joseph Buening

Duane Joseph Buening has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6864667
    Abstract: An electrical generator having a stator, a rotor, two windings, and a rectifying circuit. The stator has a first winding arranged in a wye configuration and a second winding arranged in a delta configuration. The wye winding is wound in a full pitch pattern around three stator teeth while the delta winding is wound in a short pitch pattern around two stator teeth, or vice versa. The wye and delta windings are connected to a single bridge rectifying circuit.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: March 8, 2005
    Assignee: Delphi Technologies, Inc.
    Inventors: Duane Joseph Buening, Ronald John Krefta
  • Patent number: 6800972
    Abstract: An improved generator fan serves to draw air into the generator through an inlet in the generator housing, pass the air through the rotor and stator, and direct the air out openings in the generator housing. The fan of the present invention includes a disc and at least one multi-directional blade extending from the disc. The multi-direction blade includes a leading segment extending from the disc between a first radius measured from the axis of rotation and a second radius, the leading segment including a leading edge extending from the disc at an angle of about ninety degrees from the disc, the leading segment extending from the disc with an increasing angle along the length of the leading segment; and a trailing segment extending from the disc between the second radius and a third radius measured from the axis of rotation, the third radius being greater than the second radius and the trailing segment extending from the disc with an angle having a rate of change different than the leading segment.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: October 5, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Duane Joseph Buening, Michael L. Hull
  • Patent number: 6781262
    Abstract: An improved generator has an improved rotor assembly that includes a rotor shaft defining an axis of rotation, a first pole member and a second pole member mounted on the rotor shaft and a deflector supported about the axis of rotation and having non-magnetic axial extensions. Pole claws of the first pole member and second pole member comprise north and south poles that are intermeshed and spaced apart from one another. The deflector is supported about either of the first end or second end of the shaft and corresponds to the member mounted on the same end of the shaft. The deflector is adapted to rotate with the corresponding member and includes a plurality of non-magnetic axial extensions having a base extending between adjacent pole claws of the corresponding member. The non-magnetic axial extensions provide a substantially uniform circumference creating more desirable airflow as the improved rotor assembly rotates about its axis.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: August 24, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Duane Joseph Buening, Michael L. Hull
  • Publication number: 20040145254
    Abstract: An improved generator fan serves to draw air into the generator through an inlet in the generator housing, pass the air through the rotor and stator, and direct the air out openings in the generator housing. The fan of the present invention includes a disc and at least one multi-directional blade extending from the disc. The multi-direction blade includes a leading segment extending from the disc between a first radius measured from the axis of rotation and a second radius, the leading segment including a leading edge extending from the disc at an angle of about ninety degrees from the disc, the leading segment extending from the disc with an increasing angle along the length of the leading segment; and a trailing segment extending from the disc between the second radius and a third radius measured from the axis of rotation, the third radius being greater than the second radius and the trailing segment extending from the disc with an angle having a rate of change different than the leading segment.
    Type: Application
    Filed: January 29, 2003
    Publication date: July 29, 2004
    Inventors: Duane Joseph Buening, Michael L. Hull
  • Publication number: 20040145255
    Abstract: An improved generator has an improved rotor assembly that includes a rotor shaft defining an axis of rotation, a first pole member and a second pole member mounted on the rotor shaft and a deflector supported about the axis of rotation and having non-magnetic axial extensions. Pole claws of the first pole member and second pole member comprise north and south poles that are intermeshed and spaced apart from one another. The deflector is supported about either of the first end or second end of the shaft and corresponds to the member mounted on the same end of the shaft. The deflector is adapted to rotate with the corresponding member and includes a plurality of non-magnetic axial extensions having a base extending between adjacent pole claws of the corresponding member. The non-magnetic axial extensions provide a substantially uniform circumference creating more desirable airflow as the improved rotor assembly rotates about its axis.
    Type: Application
    Filed: January 29, 2003
    Publication date: July 29, 2004
    Inventors: Duane Joseph Buening, Michael L. Hull
  • Patent number: 6750578
    Abstract: A rotating machine is provided, including a rotor having a longitudinal axis with a connected fan and a stator surrounding said rotor. Front and rear frames rotatably support the rotor. At least one of said frames has a hub with a core with an opening for receiving a bearing mounting the rotor with said hub. The hub has an opening and ribs generally radially connecting the core with an outer rim of said hub. The ribs have a cross-sectional area being generally tilted with respect to a line extending generally parallel with the axis of said rotor.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: June 15, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Duane Joseph Buening, Michael L. Hull, Steve J. Shields
  • Patent number: 6703758
    Abstract: An improved shape for a tooth of a rotor assembly in an AC generator is generally trapezoidal in shape and includes a base, a tip, and leading and trailing edges. The leading edge comprises a first portion, and a second portion. The first portion extends from the tip toward the base, and the second portion extends from the first portion toward the base. The second portion slopes at a first rate that would cover about one slot pitch were it allowed to continue all the way up to the tip. However, the first slope continues only to a transition point. The first portion is generally parallel to the trailing edge of an adjacent, magnetically opposing rotor tooth. The modified tooth presents a wider tooth cross-section.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: March 9, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Duane Joseph Buening, Michael L. Hull
  • Publication number: 20040012285
    Abstract: A rotating electrical machine is provided, including a rotor having a longitudinal axis with a connected fan and a stator surrounding said rotor. Front and rear frames rotatably support the rotor. At least one of said frames has a hub with a core with an opening for receiving a bearing mounting the rotor with said hub. The hub has an opening and ribs generally radially connecting the core with an outer rim of said hub. The ribs have a cross-sectional area being generally tilted with respect to a line extending generally parallel with the axis of said rotor.
    Type: Application
    Filed: July 22, 2002
    Publication date: January 22, 2004
    Inventors: Duane Joseph Buening, Michael L. Hull, Steve J. Shields
  • Publication number: 20030057789
    Abstract: An alternating current (AC) generator includes a casing or housing defining an accommodation space therein. A stator assembly is rigidly mounted in the accommodation space in the casing and includes stator slots and a 5-phase winding distributed through and among the stator slots. A rotor assembly is rotatably disposed inside the stator assembly and includes a plurality of pairs of opposed pole members. Pairs of pole members are configured for energization in opposite magnetic polarity. A plurality of rectifiers rectify output voltages generated by the 5-phase windings.
    Type: Application
    Filed: September 21, 2001
    Publication date: March 27, 2003
    Inventors: Duane Joseph Buening, Gregory R. Holbrook, Michael L. Hull, Ronald J. Krefta
  • Publication number: 20030006667
    Abstract: An improved shape for a tooth of a rotor assembly in an AC generator is generally trapezoidal in shape and includes a base, a tip, and leading and trailing edges. The leading edge comprises a first portion, and a second portion. The first portion extends from the tip toward the base, and the second portion extends from the first portion toward the base. The second portion slopes at a first rate that would cover about one slot pitch were it allowed to continue all the way up to the tip. However, the first slope continues only to a transition point. The first portion is generally parallel to the trailing edge of an adjacent, magnetically opposing rotor tooth. The modified tooth presents a wider tooth cross-section.
    Type: Application
    Filed: July 6, 2001
    Publication date: January 9, 2003
    Inventors: Duane Joseph Buening, Michael L. Hull
  • Publication number: 20020093266
    Abstract: An electrical generator having a stator, a rotor, two windings, and a rectifying circuit. The stator has a first winding arranged in a wye configuration and a second winding arranged in a delta configuration. The wye winding is wound in a full pitch pattern around three stator teeth while the delta winding is wound in a short pitch pattern around two stator teeth, or vice versa. The wye and delta windings are connected to a single bridge rectifying circuit.
    Type: Application
    Filed: January 18, 2001
    Publication date: July 18, 2002
    Inventors: Duane Joseph Buening, Ronald John Krefta