Patent application number | Description | Published |
20090160281 | PERMANENT MAGNET MOTOR WITH RADIALLY SUPPORTED SLEEVE - A rotor assembly includes several permanent magnets separated by spacers. The permanent magnets and the spacers are all fabricated from material having the same coefficient of thermal expansion. The spacers are in a non-magnetized state and provide support for a sleeve placed in a high interference fit with the permanent magnets. The sleeve is thereby fully supported about the inner circumference such that uneven bending stresses are significantly reduced to provide a desired operational life. | 06-25-2009 |
20090230804 | ROTOR ASSEMBLY FOR ELECTROMECHANICAL MACHINE - A rotor assembly for an electromechanical machine includes a rotor core, an outer sleeve and an inner sleeve. The rotor core includes an outer diameter, and the outer sleeve is positioned about the outer diameter. The inner sleeve is positioned between the rotor core and the outer sleeve. One of the outer sleeve and the inner sleeve dampens electromagnetic flux generated by the rotor assembly. | 09-17-2009 |
20100237733 | HYBRID AIRCRAFT ELECTRICAL ARCHITECTURE WITH BOTH VARIABLE AND CONSTANT FREQUENCY GENERATORS - An electrical generation system utilizes a variable frequency generator operating in combination with a constant frequency generator. Also disclosed and claimed are an aircraft electrical architecture, and a gas turbine engine incorporating the above electrical generation system. | 09-23-2010 |
20100283338 | OIL FILTER BYPASS VALVE ASSEMBLY FOR A GENERATOR - A bypass valve assembly for a generator includes a spring cover with a flange which extends in a radial direction from a spring cover body. The spring cover body defines an overall length dimension, the overall length dimension to an end of the spring cover body to the flange dimension defines a ratio between 1.6:1-1.2:1. The bypass valve assembly also includes a valve sleeve with a multiple of windows. Each of the multiple of windows includes a longitudinal edge which defines a longitudinal edge radius and corner radius. | 11-11-2010 |
20100289328 | HYBRID CONSTANT/VARIABLE FREQUENCY STARTER DRIVE - A power generation system and method uses a constant frequency generator to generate electrical power in a generate mode. When operating in a start mode, the constant frequency generator is controlled by a motor controller which at least partially controls another component while the system is in a generate mode. The power generation system and method can be implemented in, for example, an aircraft electrical architecture. | 11-18-2010 |
20110309190 | LAYSHAFT GENERATOR - An apparatus is provided and includes a rotatable shaft on which a first bevel gearbox is disposed, a layshaft on which a second bevel gearbox is disposed, the first and second bevel gearboxes being coupled to transmit shaft rotation to the layshaft, an accessory gearbox to which the layshaft and one or more accessories are coupled and a generator operably disposed on the layshaft between the second bevel gearbox and the accessory gearbox. | 12-22-2011 |
20130025828 | MOTOR WITH COOLED ROTOR - A fan includes an air movement implement including a blade and a motor that drives the air movement implement. The motor includes a rotor that includes an internal diameter heat exchanger and a heat pipe having a first end and a second end, the first end in thermal contact with the internal diameter heat exchanger and the second end in thermal contact with the blade. | 01-31-2013 |
20130025833 | STATIC DISSIPATING AGENT DISPERSION APPARATUS AND METHOD - A static dissipating agent (SDA) dispersion apparatus and method disperses an SDA into a coolant system from a filter having a filter material and an SDA suspended within the filter material. | 01-31-2013 |
20130177405 | WET TURBOMACHINE - A turbomachine includes a motor including a rotor assembly and a stator assembly. A sleeve fluidly separates the rotor assembly from the stator assembly. The sleeve has first and second ends axially spaced from one another. In one example, first and second seals are arranged at the first end and fluidly separate the rotor assembly from the stator assembly. The second seal is arranged downstream from the first seal relative to the rotor assembly. In another example, the sleeve includes wet and dry sides. A first seal is arranged at the first end on the wet side. A drain is provided in the housing and arranged in a region downstream from the first seal. The drain fluidly connects the region to an exterior of the housing. | 07-11-2013 |
20130221794 | ROTOR END BAND - An end band and method of forming an end band for a rotor. The end band includes a hollow cylindrical band, wherein at least a portion of the band has a grain flow in a direction parallel to the hoop stress of the band. The end band also includes at least a portion having a grain flow in a direction perpendicular to the hoop stress of the band. | 08-29-2013 |
20130270828 | HOUSING FOR AN ELECTRICAL STARTER MOTOR - A housing for an electrical device includes an interior surface and one or more stress reducing notches. The interior surface is configured to interface with one or more internal components of the motor. The one or more stress reducing notches are located along the interior surface of the housing. | 10-17-2013 |
20140070634 | CONTAINMENT BAND FOR PERMANENT MAGNET GENERATOR - A rotor has a rotor body for rotation about a shaft. A plurality of permanent magnets are spaced circumferentially about the rotor body. A containment band is positioned radially outwardly of the permanent magnets. The containment band has a containment band coefficient of thermal expansion. The permanent magnets have a permanent magnet coefficient of thermal expansion, taken parallel to a magnetic alignment. A ratio of the containment band coefficient of thermal expansion to the permanent magnet coefficient of thermal expansion is less than or equal to 1.15. | 03-13-2014 |
20140360242 | ROTOR END BAND - An end band and method of forming an end band for a rotor. The end band includes a hollow cylindrical band, wherein at least a portion of the band has a grain flow in a direction parallel to the hoop stress of the band. The end band also includes at least a portion having a grain flow in a direction perpendicular to the hoop stress of the band. | 12-11-2014 |