| 摘要 |
A power unit driving a driven part at increased driving efficiency. A power unit (1) for driving driven parts (DW, DW) has an engine (3) and first and second generator-motors (20, 30). The first generator-motor (20) has a first stator (22), a first rotor (21) constructed from magnets, and a second rotor (23) constructed from soft magnetic substances and installed between the first stator (22) and the first rotor (21). The second generator-motor (30) has a second stator (32), a third rotor (31) constructed from magnets, and a fourth rotor (33) constructed from soft magnetic substances and installed between the third stator (32) and the second rotor (31). The first and fourth rotors (21, 33) are mechanically connected to the driven parts (DW, DW), and the second and third rotors (23, 31) are connected to the output shaft (3a) of the engine (3). The first and second stators (22, 32) are electrically connected to each other through first and second controllers (2, 41, 42). |
