| 摘要 |
The rotor comprises an elongated hollow cylinder and hollow stub shafts affixed to and extending outwardly of each end portion of the cylinder, such cylinder interior being in fluid communication with the interiors of the shafts so that cooling fluid passes therebetween to reduce the heat build up of the cylinder and the transfer of heat to the rotor support beraings, and to conserve energy by substantially reducing the mass of the rotor. Fan blades may be located in and attached inwardly of the shaft or the cylinder to force cooling air therethrough. |
