Abstract:
A dynamoelectric machine comprises a first rotor shaft, a second rotor shaft and a central element. The first rotor shaft rotates about a central axis of the machine and has a first magnetic drive element disposed about an outer circumference of the first rotor shaft. The second rotor shaft rotates about the first rotor shaft and has a second magnetic drive element disposed about an inner circumference of the second rotor shaft. The central element is disposed between the first rotor shaft and the second rotor shaft and is configurable to remain stationary while the first rotor shaft and the second rotor shaft rotate about the central axis. The central element also includes a third magnetic drive element for interacting with the first magnetic drive element, and a fourth magnetic drive element for interacting with the second magnetic drive element.
Abstract:
PROBLEM TO BE SOLVED: To provide a variable wash flow filter assembly. SOLUTION: The variable wash flow filter assembly 54 includes an inlet 62, a housing 60 for demarcating a filtered flow port 64 and a combustion flow port 66, a wash filter 74, and a wash velocity control cone 68. The wash velocity control cone 68 is guided by a guide 76 along the axis A of the variable wash flow filter assembly 54, urged by an urging member 70 in the housing 60, and movable between a minimal position and a maximum position. The fuel flow F flows into the variable wash flow filter assembly 54 from the inlet 62, and flows between the wash velocity control cone 68 and the wash filter 74, and is divided into the combustion flow and the filtered flow. The combustion flow works as the wash flow to carry away foreign matters captured by the wash filter 74. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a gear pump for operating with reduced likelihood of cavitation occurrences in the fluid being pumped thereby. SOLUTION: The pump is provided with a pair of gears each supported on a corresponding one of a pair of gears. The gears are supported by one of a pair of respective gear shafts between both shaft end parts. Teeth provided in each gear mesh with at least one tooth of other when such teeth have been rotated into a meshing region in the gear plane. One of the gear shafts is rotatably connectable to a motor. A bearing structure rotatably supports corresponding one of each of the pair of gear shafts at both sides and has bearing surfaces at a side adjacent those gears. A pressurized fluid passageway is provided in at least one of the bearing structures toward the meshing region of the gears. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an electric motor cooling system which will not negatively influence the performance and the efficiency of a motor, and will not put excess load on a cooling source. SOLUTION: The electric motor cooling system comprises a housing and a first and a second cooling source, and the first and second cooling sources are different from each other and supply a first and a second cooling flow, respectively. A stator is mounted inside the housing and receives the first cooling flow, while a rotor is turnable with respect to the stator and receives the second cooling flow. In some embodiment, the housing supports a journal bearing for supporting the rotor, and the second cooling flow is caused to flow through the journal bearing. For example, the first cooling flow is supplied from a low-pressure source, such as ram air, and the second cooling flow is supplied from a high-pressure source, such as bleed air. A circumferential gap is installed in between the rotor and the stator. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
A heat exchanger assembly includes a plurality of fluid flow pathways including fins. Closure bars associated with each of the layers have a core reinforcing portion. Each core reinforcing portion includes first and second reinforcing members with a modified flow passage between them. The example embodiments include modified flow passages with generally C-shaped cross sections. The reinforcing portions preferably extend toward a center of the heat exchanger core varying distances along the body of the core so that reinforcing material is concentrated near the ends of the core where deformation caused by heat stress is most likely to occur.