| 摘要 |
<p>An electrical machine comprises an electric generator (6) having a mechanical power input shaft and an electric power output means and an electric motor (1) having an electric power input means and a mechanical power output shaft. The output shaft of the electric motor (1) is connected to drive the input shaft of the electric generator (6) through a gear assembly (5) comprising a first externally toothed gearwheel (5b) connected to the motor output shaft, a second internally toothed gearwheel (5c) coaxial with and surrounding the first gearwheel (5b) and connected to the generator input shaft and a number of third externally toothed gearwheels (5d) mounted for rotation between the first and second gearwheels (5b, 5c) so that rotation of the first gearwheel (5b) is transmitted to the third gearwheels and then transmitted to the second gearwheel (5c). The torque transmitted to the generator input shaft is greater than the torque on the motor output shaft and the electrical power output means of the electric generator (6) is arranged to supply electrical power to the electric power input means of the electric motor (1).</p> |
