Abstract:
A bearing assembly, such as for a wind turbine or a tidal turbine including a tower and a nacelle, includes a lower part that is attachable to the tower, an upper part that is attachable to the nacelle, a bearing that rotatably couples the lower part to the upper part to allow rotation of the nacelle with respect to the tower, and a brake mechanism configured to selectively prevent relative rotation of the upper part and the lower part. The brake mechanism includes a brake disc and a brake caliper.
Abstract:
A heterogeneous composite consisting of near-nano ceramic clusters dispersed within a ductile matrix. The composite is formed through the high temperature compaction of a starting powder consisting of a core of ceramic nanoparticles held together with metallic binder. This core is clad with a ductile metal such that when the final powder is consolidated, the ductile metal forms a tough, near-zero contiguity matrix. The material is consolidated using any means that will maintain its heterogeneous structure.
Abstract:
An aerator for aerating water comprises a distribution system for distributing air below the water surface and a compressor with an air inlet and at least one air outlet. The compressor is configured to be placed below the water surface. The infiltration of water at the air inlet is prevented by an intake pipe with one open end above the water surface and the other open end has a watertight connection to the compressor. The distribution system has a watertight connection to the air outlet and, due to its nature or by at least one valve, can hold back water. The housing is in thermal contact with the water to cool the compressor. The compressor is a centrifugal compressor that comprises an impeller that is driven by a shaft that it is mounted on air bearings, magnetic bearings or both.
Abstract:
An automatic transmission includes: a torque converter; a stator in the torque converter; and a thrust washer adjacent the stator. The thrust washer includes a circulation circuit formed in the washer to facilitate fluid movement from one side of the washer to another side of the washer.
Abstract:
A staple yarn comprising a blend of 35 to 90 weight percent fluoropolymer fiber and 65 to 10 weight percent of one or more types of blend fiber.
Abstract:
A bearing assembly for a sliding mechanism in which the potential for erosion of bearing surfaces is significantly reduced. The bearing assembly includes a cylindrical bearing that engages the bearing surface of a slide as it slidably moves with respect to the bearing assembly. The bearing assembly is configured such that rotation of the cylindrical bearing is in no way restricted and at no time is an edge or end of the cylindrical bearing engaged with the bearing surface of the slide.
Abstract:
A centrifugal classifier comprising a housing, which is provided with inlets for material to be classified and classifying air or with an inlet for material to be classified and classifying air and with outlets for fines and for coarses, and at least one rotor, which essentially consists of an annular series of blades and is movably mounted in the housing. The rotor is movably mounted in the housing by at least one bearing, which is adapted to be purged by a fluid and which serves also as a seal between the rotor or rotor shaft and the housing.
Abstract:
A plastic member having a pivot pin bearing constituted by a hole of polygonal cross-section is disclosed. Parallel to each side of said polygonal hole and spaced slightly outwardly therefrom, there is a cavity or relief in said member to provide a capability for sufficient deflection of said sides to compensate for small dimensional variations. Since the two ends of each side are fixed, the stiffness of the bearing is maintained so as to minimize the tendency of a part pivoted in said bearing to vibrate when off-center forces are applied.
Abstract:
667,475. Bearings. MORF, E. Feb. 28, 1950 [April 14, 1949], No. 5100/50. Class 12 (i). In a bearing for gear-wheels in watches and other precision apparatus, the walls of the space receiving the pivot 8 of the gearwheel are only in part made of non-metallic jewels. The bearing may comprise a jewel disc 9, Fig. 3, having a cut-out 12 on its circumference, forced into a metallic setting 10. The pivot 8 normally engages the jewel under the action of a force F which acts on the gear-wheel. The cut-out may be V-shaped. In a modification, the bearing comprises jewel members 14, 15 contacting each other and forming together with the metallic setting 13, a space for receiving the pivot. In a further modification, for a pivot of larger diameter, the jewels may be arranged in separate holes in the metallic setting, each contacting the pivot.