Patents Assigned to Clean Current Limited Partnership
  • Patent number: 9000604
    Abstract: An apparatus is disclosed for a turbine for generating electrical power from fluid flow comprising a duct with an oblong elevation, intake hoods and vents, aft diffuser cutouts and an oblique face to optimize flow and therefore power characteristics. A unidirectional turbine generator apparatus is also disclosed comprising turbine blades with one or more raked and/or tapered sections, and optionally also with multiple beaded surface features to improve efficiency and performance of the turbine generator. A hydro turbine generator with a single-sided axial-flux magnetic generator is disclosed comprising a hybrid magnetic/anti-friction axial bearing assembly. A multiple turbine generator arrangement is also disclosed comprising multiple unidirectional turbine generators connected to a shore-based electrical distribution system.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: April 7, 2015
    Assignee: Clean Current Limited Partnership
    Inventors: Eyup Mete Sireli, Mihai C. Platon, Milen Atanasov Raychev
  • Patent number: 8575817
    Abstract: Rotor and stator segments for a generator and motor apparatus are provided. The apparatus includes: a pair of parallel, spaced apart stator segments, each stator segment comprising a stator winding set; and a rotor segment slidably coupled to the pair of stator segments, the rotor segment comprising a magnet and being dimensioned to fit between the parallel, spaced apart stator segments. The apparatus may include a support structure, the rotor segment being slidably coupled to the support structure and the stator segment being attached to the support structure. The apparatus may be a rim generator, wind turbine generator or other electrical machine. The stator winding set includes a stator winding, and may include other electrical or electronic components, including possibly a power factor capacitor, direct current filtering capacitor, supercapacitor, and one or more diodes. The stator winding set may be encapsulated within the stator segment.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: November 5, 2013
    Assignee: Clean Current Limited Partnership
    Inventors: Mihai C. Platon, Virgil F. Young
  • Publication number: 20130043685
    Abstract: An apparatus is disclosed for a turbine for generating electrical power from fluid flow comprising a duct with an oblong elevation, intake hoods and vents, aft diffuser cutouts and an oblique face to optimize flow and therefore power characteristics. A unidirectional turbine generator apparatus is also disclosed comprising turbine blades with one or more raked and/or tapered sections, and optionally also with multiple beaded surface features to improve efficiency and performance of the turbine generator. A hydro turbine generator with a single-sided axial-flux magnetic generator is disclosed comprising a hybrid magnetic/anti-friction axial bearing assembly. A multiple turbine generator arrangement is also disclosed comprising multiple unidirectional turbine generators connected to a shore-based electrical distribution system.
    Type: Application
    Filed: April 29, 2011
    Publication date: February 21, 2013
    Applicant: CLEAN CURRENT LIMITED PARTNERSHIP
    Inventors: Eyup Mete Sireli, Mihai C. Platon, Milen Atanasov Raychev
  • Patent number: 8222792
    Abstract: A generator or motor apparatus having a stator formed of a plurality of pairs of parallel stator segments is provided The pairs of parallel segments are connected together to form a channel in which an annular rotor moves The annular rotor also comprises a plurality of detachable segments connected together to form an annular tram operable to move through said channel Each stator segment comprises a stator winding set and each rotor segment comprises a magnet dimensioned to fit between the parallel spaced apart stator segments The apparatus may include a support structure, the rotor segments being slidably coupled to the support structure and the stator segments being attached to the support structure The apparatus may be a rim generator, wind turbine generator or other electrical machine The stator winding set includes a stator winding, and may include other electrical or electronic components, including possibly a power factor capacitor, direct current filtering capacitor, supercapacitor, and one or more di
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: July 17, 2012
    Assignee: Clean Current Limited Partnership
    Inventors: Mihai C. Platon, Virgil F. Young
  • Patent number: 8022567
    Abstract: An apparatus is disclosed for a turbine for generating electrical power from water or air flow comprising at least one rotor disk having a plurality of hydrofoil blades, guide vanes, a cylindrical housing, and a generator means. A rim generator comprising a magnet race rotor rim and fixed stator coils in the housing is used. The apparatus is fitted with a screen to stop the ingress of debris and marine life, and a skirt augmenter device to reduce the Betz effect. The apparatus is preferably for sub-sea deployment and driven by tidal currents, but may be powered by river current or wave driven air or by wind. The apparatus may be deployed on at least one telescoping pole, tethered to the sea-bed and kept buoyant by buoyant concrete in the housing, or inserted in a dam, under a barge or in a tidal power array.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: September 20, 2011
    Assignee: Clean Current Limited Partnership
    Inventors: Barry V. Davis, Lena Marie Davis, legal representative, Emmanuel Grillos, Stephen Allison
  • Publication number: 20110115228
    Abstract: A flow enhancement improvement for an underwater turbine generator (10) is disclosed wherein a longitudinal hole (240) is disposed in the central area (26), typically a hub (20) of the generator (10), and a second, augmentor duct (41), preferably rigid, is disposed about the outer duct (40) or housing of the unit to create a slot (200) area. The slot (200) and hollow hub (20) create areas of smooth, laminar fluid flow. The leading edges of the hub (20) or central ring and the augmentor (41) and outer ducts (40) are elliptical to enhance the fluid dynamics of the structure.
    Type: Application
    Filed: December 22, 2010
    Publication date: May 19, 2011
    Applicant: CLEAN CURRENT LIMITED PARTNERSHIP
    Inventors: Russell STOTHERS, Emmanuel GRILLOS
  • Patent number: 7874788
    Abstract: A flow enhancement improvement for an underwater turbine generator (10) is disclosed wherein a longitudinal hole (240) is disposed in the central area (26), typically a hub (20) of the generator (10), and a second, augmentor duct (41), preferably rigid, is disposed about the outer duct (40) or housing of the unit to create a slot (200) area. The slot (200) and hollow hub (20) create areas of smooth, laminar fluid flow. The leading edges of the hub (20) or central ring and the augmentor (41) and outer ducts (40) are elliptical to enhance the fluid dynamics of the structure.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: January 25, 2011
    Assignee: Clean Current Limited Partnership
    Inventors: Russell Stothers, Emmanuel Grillos