Patent application number | Description | Published |
20090098003 | MULTIPHASE SCREW PUMP - A twin screw pump includes a pair of rotors disposed inside a casing having an inlet and an outlet. Each rotor includes a set of threads disposed on a portion of an outer surface of a shaft. A first bearing is coupled at a first end of the shaft and a second bearing is coupled at a second end of the shaft. The first and second bearings are not separated by one or more seals. The first and second bearings are configured for being lubricated by the liquid medium of the process fluid when the twin screw pump is in an operational mode. | 04-16-2009 |
20100113210 | Split torque compound planetary drivetrain for wind turbine applications - A compound planetary gear transmission unit includes a second stage with axially staggered planets. | 05-06-2010 |
20120025526 | SYSTEM AND METHOD FOR MONITORING WIND TURBINE GEARBOX HEALTH AND PERFORMANCE - A system and method are provided to monitor the health and performance of a wind turbine gearbox. A plurality of sensors coupled to the wind turbine gearbox provide input to a controller. The controller generates output information that includes performance and health information of the wind turbine gearbox based on the input received from each of the sensors. | 02-02-2012 |
20120027596 | PLANETARY GEAR SYSTEM - A planetary gear system is disclosed. The planetary gear system includes a carrier, a planet gear defining a central planet axis, and a pin coupling the planet gear to the carrier. The planetary gear system additionally includes a bearing disposed between the planet gear and the pin. The bearing includes a plurality of rolling elements. Each of the rolling elements is in contact with an inner race and an outer race. The planetary gear system further includes a resilient member. The resilient member is disposed between one of the inner race and the pin or the outer race and the planet gear. | 02-02-2012 |
20120028755 | PIN FOR PLANETARY GEAR SYSTEM - A pin for coupling a planet gear to a carrier in a planetary gear system is disclosed. The pin includes a first end, a second end, and an outer surface extending between the first end and the second end. In some embodiments, the pin further includes means for modifying the compliance of the pin at an interface between the pin and the carrier. In other embodiments, the pin further include a compliance feature defined in the outer surface, the compliance feature allowing greater compliance of the pin in the tangential direction than in the radial direction. | 02-02-2012 |
20120028756 | COMPLIANT CARRIER WALL FOR IMPROVED GEARBOX LOAD SHARING - A planetary gear system and a method of fabricating same. The planetary gear system includes at least one planet gear, at least one planet pin receiving the at least one planet gear, and a carrier. The carrier itself includes at least one carrier opening for accommodating the at least planet gear, at least one planet pin opening for receiving the at least one planet pin, and at least one flex portion within a wall of the carrier for providing enhanced compliance to the carrier in response to force directed on the at least one planet gear. | 02-02-2012 |
20120029838 | SYSTEM AND METHOD FOR MONITORING A WIND TURBINE GEARBOX - A system and method are provided to monitor the health of a wind turbine gearbox. The system includes a plurality of sensors coupled to the wind turbine gearbox and a controller coupled to the plurality of sensors. The controller is configured to acquire vibration information from a vibration sensor, acquire a tachometer signal, convert the tachometer signal and the vibration information into a cycle domain signal, and perform an order analysis on the cycle domain signal, the order analysis providing information that identifies potential and actual damage within the wind turbine gearbox. | 02-02-2012 |
20120316027 | GEAR SYSTEM AND METHOD FOR USING SAME - A planetary gear system and a method. The planetary gear system includes a carrier body configured to receive planet gears, at least one pin received by the carrier body, and flex means positioned between the carrier body and the at least one pin. The method includes preparing the carrier, upon which a plurality of planet gears is mounted through planet pins, and providing flex means between the planet pins and the carrier, the flex means configured to enable movement of the planet pins in response to a force directed thereon. | 12-13-2012 |