Abstract: A hoist system includes a drum, a motor, and a transmission. The drum includes a hollow shell, a first end, a second end, and an internal web, and defines a longitudinal axis extending between the first end and the second end. The internal web extends across an interior portion of the shell in a direction perpendicular to the longitudinal axis, thereby defining a first portion and a second portion of the shell. The motor is coupled to the first end and includes an output shaft. The transmission is driven by the motor and includes a planetary gear train positioned within the interior portion of the shell. The planetary gear train includes an input gear coupled to the motor output shaft and an output gear coupled to the internal web to rotate the drum about the longitudinal axis. The planetary gear train is positioned in a first portion of the shell.

Abstract: A hoist system includes a drum, a motor, and a transmission. The drum includes a hollow shell, a first end, a second end, and an internal web, and defines a longitudinal axis extending between the first end and the second end. The internal web extends across an interior portion of the shell in a direction perpendicular to the longitudinal axis, thereby defining a first portion and a second portion of the shell. The motor is coupled to the first end and includes an output shaft. The transmission is driven by the motor and includes a planetary gear train positioned within the interior portion of the shell. The planetary gear train includes an input gear coupled to the motor output shaft and an output gear coupled to the internal web to rotate the drum about the longitudinal axis. The planetary gear train is positioned in a first portion of the shell.

Abstract: A gear assembly includes a flexible pin mounted to and supported by a planet carrier at one end. A tubular sleeve extends coaxially about the flexible pin and provides a deflection space between said tubular sleeve and said flexible pin. Said flexible pin moves, flexes or deflects under operational loads. A damping element is contained at least partially within the deflection space and surrounds at least partially said flexible pin.

Abstract: A flexible pin for a helical gear system. A countering realignment equal and opposite to the misalignment caused by the overturning moment and other gear forces is created without adding components or wearing surfaces. On the pin elements, one or more different or varying cross sections with the principal axes of their sections non-vertically orientated utilize the tangential and radial forces to cause deflections in two planes to perfectly compensate for misalignment caused by helical gear forces, thus keeping the mesh aligned the same as when using spur gears and traditional flexpins.

Abstract: A generator housed in a wind turbine nacelle includes a generator rotor that is mounted to gearbox output pinions, thereby eliminating the need for couplings. The generator frame is located directly on the gearbox and is located to control the air gap. To facilitate removal of the generator, tapers are used that have steep angles that exceed the friction coefficient of the materials used. To provide adequate support over its length, the shaft employs dual tapers, each short and precisely located conical surface of which provides exact location on the near and far sides of the shaft. The length of straight shaft between the dual locating tapers serves to support the generator during mounting and de-mounting. During installation, the tapers center the rotor and bullet pins center the frame (stator). When the system aligns the rotor and stator, retainer elements act as labyrinth seals designed to protect the generator interior from contamination.

Abstract: A flexible pin for a helical gear system. A countering realignment equal and opposite to the misalignment caused by the overturning moment and other gear forces is created without adding components or wearing surfaces. On the pin elements, one or more different or varying cross sections with the principal axes of their sections non-vertically orientated utilize the tangential and radial forces to cause deflections in two planes to perfectly compensate for misalignment caused by helical gear forces, thus keeping the mesh aligned the same as when using spur gears and traditional flexpins.

Abstract: A generator housed in a wind turbine nacelle includes a generator rotor that is mounted to gearbox output pinions, thereby eliminating the need for couplings. The generator frame is located directly on the gearbox and is located to control the air gap. To facilitate removal of the generator, tapers are used that have steep angles that exceed the friction coefficient of the materials used. To provide adequate support over its length, the shaft employs dual tapers, each short and precisely located conical surface of which provides exact location on the near and far sides of the shaft. The length of straight shaft between the dual locating tapers serves to support the generator during mounting and de-mounting. During installation, the tapers center the rotor and bullet pins center the frame (stator). When the system aligns the rotor and stator, retainer elements act as labyrinth seals designed to protect the generator interior from contamination.

Abstract: An electric power-generating device with a rotor turned by an external source of energy, such as wind or water currents. The rotor is coupled to a main shaft. A pair of bull gears is located on the main shaft. A number of intermediate gears are located around a perimeter of the bull gears. An intermediate gear is connected to an input shaft having a double helix pinion that engages the pair of bull gears. The other intermediate gears are similarly connected to respective input shafts having double helix pimons that engage the pair of bull gears. A plurality of output shafts is provided. An output shaft has a single-helix output pinion that engages two adjacent intermediate gears. The other output shafts are similarly connected to respective adjacent intermediate gears. A number of rotational devices are connected to the output shafts.

Abstract: An electric power-generating device with a rotor turned by an external source of energy, such as wind or water currents. The rotor is coupled to a main shaft. A pair of bull gears is located on the main shaft. A number of intermediate gears are located around a perimeter of the bull gears. An intermediate gear is connected to an input shaft having a double helix pinion that engages the pair of bull gears. The other intermediate gears are similarly connected to respective input shafts having double helix pinions that engage the pair of bull gears. A plurality of output shafts is provided. An output shaft has an output pinion that engages two adjacent intermediate gears. The other output shafts are similarly connected to respective adjacent intermediate gears. A number of rotational devices are connected to the output shafts.

Abstract: A power source drives a main input shaft. A plurality of output shafts are located around a bull gear which is coupled to the main input shaft. A number of generators are each coupled to a respective one of the output shafts, such that each one of the output shafts drives a generator. A number of intermediate gears are located around a perimeter of the bull gear, alternating half of the intermediate gears on one side of the bull gear and half on an opposite side of the bull gear. Each one of the intermediate gears is pressure fitted to an intermediate pinion with teeth that engage the bull gear teeth. Each one of the output shafts has two pinions that engage two intermediate gears, one on one side of the bull gear and one on an opposite side of the bull gear.

Abstract: A power source drives a main input shaft. A plurality of output shafts are located around a bull gear which is coupled to the main input shaft. A number of generators are each coupled to a respective one of the output shafts, such that each one of the output shafts drives a generator. A number of intermediate gears are located around a perimeter of the bull gear, alternating half of the intermediate gears on one side of the bull gear and half on an opposite side of the bull gear. Each one of the intermediate gears is pressure fitted to an intermediate pinion with teeth that engage the bull gear teeth. Each one of the output shafts has two pinions that engage two intermediate gears, one on one side of the bull gear and one on an opposite side of the bull gear.