| MITSUBISIHI HEAVY INDUSTRIES, LTD Patent applications |
| Patent application number | Title | Published |
|---|
| 20110293417 | WIND TURBINE GENERATOR HAVING A DETECTION UNIT FOR DETECTING FOREIGN OBJECT INSIDE ROTOR AND OPERATING METHOD THEREOF - In order to provide a wind turbine generator and an operation method of the wind turbine generator which is not subjected to damages caused by foreign objects inside a rotor hub, the wind turbine generator comprises blades, a rotor hub to which the blades are fixed, a rotating shaft such as a main shaft and a coupling being connected to the rotor hub and rotating with the rotor hub, a FO detection sensor arranged inside the rotor hub for detecting a foreign object inside the rotor hub, a brake device such as a pitch control unit and a parking brake for stopping the rotation of the rotating shaft, and a controller for controlling the brake device to stop the rotation of the rotating shaft when the FO detection sensor detects the foreign object. | 12-01-2011 |
| 20110291422 | WIND TURBINE GENERATOR AND ROLLING BEARING FOR WIND TURBINE GENERATOR - In order to provide a rolling bearing for a wind turbine and a wind turbine which can prevent the deterioration of the lubrication condition even when the rolling bearing receives high load while the inner ring and the outer ring are kept still relative to each other, the wind turbine generator of the present invention for supporting a first member and a second member which rotates relative to the first member, comprises an inner ring to which the first member is fixed; an outer ring to which the second member is fixed; a center ring which is arranged between the inner ring and the outer ring and can rotate independently of the inner ring and the outer ring; rolling elements which are provided between the bearing rings in such a manner that the rolling elements can freely roll; and a center ring drive unit for rotating the center ring. | 12-01-2011 |
| 20100290922 | TURBINE DISK AND GAS TURBINE - In a turbine disk and a gas turbine, the turbine disk is firmly connected to a rotor ( | 11-18-2010 |
| 20100284796 | PUMP - In a pump, a main shaft ( | 11-11-2010 |
| 20100282031 | SOCKET FOR SOCKET WRENCH AND METHOD FOR FIXING MEMBER TO BE FASTENED | 11-11-2010 |
