| 摘要 |
<p>A generator comprises a rotor 102 having plural blades 112 extending radially from it and at least one of a pair of magnets and coils; and a stator comprising the other of the pair of magnets and coils. The coils are arranged such that when the rotor rotates with respect to the stator an electromotive force is generated. The rotor can be a tubular body outside and coaxial with the stator with the blades 112 pre-cast on its external face. The rotor can be tapered in cross section with its wider end at a fluid flow inlet end of the generator. Preferably the magnets are permanent magnets on the rotor and coils on the stator are connected to transmit power for recovery. The generator can have a housing outside the rotor and stator; be positioned axially in a pipeline; and used in a geothermal well directly driven by fluid flow. Plural generators can be arranged in series or in parallel.</p> |
