Patents by Inventor Arnoldo Fenocchi
Arnoldo Fenocchi 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).
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Patent number: 6912773Abstract: The invention provides a stator coil construction in which the thickness of the stator windings is reduced without the need for interconnections within the stator. The reduction in thickness of the stator windings is accomplished by wire flattening.Type: GrantFiled: November 7, 2002Date of Patent: July 5, 2005Assignee: The Turbo Genset Company LimitedInventors: Keith Robert Pullen, Arnoldo Fenocchi, Mohammad Reza Etemad
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Patent number: 6774519Abstract: A rotary electrical machine (1) has at least one stator (23). The stator is provided with at least one radial channel (107) for ducting cooling air. The channel (107) extends between a first position (113) at or substantially near the rim (109) of a winding region of the stator (23) and a second position (119) at or substantially near the center (51) of the winding region. The machine (1) has cooling means (91-97) for causing cooling air to enter the radial channel (107) via the second position (119) and exit via the first position (113). The stator may have electrical windings arranged as coil sectors (183-197) disposed substantially equi-angularly in a generally circular pattern. At least some of the coil sectors are wound in a generally spiral fashion when viewed axially. A rotor (13), for the machine may have a plurality of equi-angularly spaced magnets (127), which are generally circular but with a cut-away portion, when viewed axially.Type: GrantFiled: June 3, 2002Date of Patent: August 10, 2004Assignee: The Turbo Genset CompanyInventors: Keith Robert Pullen, Mohammad Reza Etemad, Arnoldo Fenocchi
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Publication number: 20030173858Abstract: The invention provides a stator coil construction in which the thickness of the stator windings is reduced without the need for interconnections within the stator. The reduction in thickness of the stator windings is accomplished by wire flattening.Type: ApplicationFiled: November 7, 2002Publication date: September 18, 2003Inventors: Keith Robert Pullen, Arnoldo Fenocchi, Mohammad Reza Etemad
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Publication number: 20020149274Abstract: A rotary electrical machine (1) has at least one stator (23). The stator is provided with at least one radial channel (107) for ducting cooling air. The channel (107) extends between a first position (113) at or substantially near the rim (109) of a winding region of the stator (23) and a second position (119) at or substantially near the center (51) of the winding region. The machine (1) has cooling means (91-97) for causing cooling air to enter the radial channel (107) via the second position (119) and exit via the first position (113). The stator may have electrical windings arranged as coil sectors (183-197) disposed substantially equi-angularly in a generally circular pattern. At least some of the coil sectors are wound in a generally spiral fashion when viewed axially. A rotor (13), for the machine may have a plurality of equi-angularly spaced magnets (127), which are generally circular but with a cut-away portion, when viewed axially.Type: ApplicationFiled: June 3, 2002Publication date: October 17, 2002Inventors: Keith Robert Pullen, Mohammad Reza Etemad, Arnoldo Fenocchi
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Patent number: 6424069Abstract: A rotary electrical machine (1) has at least one stator (23). The stator is provided with at least one radial channel (107) for ducting cooling air. The channel (107) extends between a first position (113) at or substantially near the rim (109) of a winding region of the stator (23) and a second position (119) at or substantially near the center (51) of the winding region. The machine (1) has cooling means (91-97) for causing cooling air to enter the radial channel (107) via the second position (119) and exit via the first position (113). The stator may have electrical windings arranged as coil sectors (183-197) disposed substantially equi-angularly in a generally circular pattern. At least some of the coil sectors are wound in a generally spiral fashion when viewed axially. A rotor (13), for the machine may have a plurality of equi-angularly spaced magnets (127), which are generally circular but with a cut-away portion, when viewed axially.Type: GrantFiled: December 21, 1999Date of Patent: July 23, 2002Assignee: The Turbo Genset Company LimitedInventors: Keith Robert Pullen, Mohammad Reza Etemad, Arnoldo Fenocchi
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Patent number: 6104111Abstract: A rotary electrical machine (1) has a least one stator (23). The stator is provided with at least one radial channel (107) for ducting cooling air. The channel (107) extends between a first position (113) at or substantially near the rim (109) of a winding region of the stator (23) and a second position (119) at or substantially near the center (51) of the winding region. The machine (1) has cooling means (91-97) for causing cooling air to enter the radial channel (107) via the second position (119) and exit via the first position (113). The stator may have electrical windings arranged as coil sectors (183-197) disposed substantially equi-angularly in a generally circular pattern. At least some of the coil sectors are wound in a generally spiral fashion when viewed axially. A rotor (13), for the machine may have a plurality of equi-angularly spaced magnets (127), which are generally circular but with a cut-away portion, when viewed axially.Type: GrantFiled: November 26, 1997Date of Patent: August 15, 2000Assignee: Turbo Genset Co, Ltd.Inventors: Keith Robert Pullen, Mohammad Reza Etemad, Arnoldo Fenocchi
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Patent number: 5021698Abstract: Potentially very high power ratings can be achieved from rotary electrical generators in which permanent magnet rotor stages using modern high intensity magnetic materials, for example cobalt samarium or neodymium boron iron. The machine described comprises a plurality of axial field rotor stages each comprising a plurality of magnet segments arranged around a driven hub in a pre-stressed assembly in which encompassing hoop means exerts sufficient compressive stress on the magnets and hub assembly to counter centripetal forces generated by speeds of up to 100,000 rpm. Alternative methods of stressing the hoop means is described.Type: GrantFiled: September 12, 1990Date of Patent: June 4, 1991Assignee: Rolls Royce plcInventors: Keith R. Pullen, Kevin J. Horton, Mohammad R. Etemad, Arnoldo Fenocchi, Laurence W. Eggleston, Hugh R. Bolton
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Patent number: RE37844Abstract: A rotary electrical machine (1) has at least one stator (23). The stator is provided with at least one radial channel (107) for ducting cooling air. The channel (107) extends between a first position (113) at or substantially near the rim (109) of a winding region of the stator (23) and a second position (119) at or substantially near the center (51) of the winding region. The machine (1) has cooling means (91-97) for causing cooling air to enter the radial channel (107) via the second position (119) and exit via the first portion (113). The stator may have electrical windings arranged as coil sectors (183-197) disposed substantially equi-angularly in a generally circular pattern. At least some of the coil sectors are wound in a generally spiral fashion when viewed axially. A rotor (13), for the machine may have a plurality of equi-angularly spaced magnets (127), which are generally circular but with a cut-away portion, when viewed axially.Type: GrantFiled: October 20, 2000Date of Patent: September 17, 2002Assignee: The Turbo Genset Company, Ltd.Inventors: Keith Robert Pullen, Mohammad Reza Etemad, Arnoldo Fenocchi