| 摘要 |
Turbine (21, 121) and method for extracting energy from fluid flowing along a fluid channel (4, 104) of a fluid system. The turbine has a flow pathway (30, 130) with an inlet (32, 132) in communication with the fluid channel. A rotor (23, 123) is disposed in the flow pathway and is rotatable around a rotation axis (R) under the action of fluid flowing along the flow pathway. The rotation axis of the rotor is oblique to an axis extending along the fluid channel. The outlet (34, 134) of flow pathway may return fluid to the fluid channel. The turbine may also be provided with a flow control arrangement (170) so as to vary the flow of fluid past the rotor and to prevent the rotor from damage. The invention provides for the generation or extraction of energy from fluid flowing along a fluid channel by the turbine. The rotor may be positioned apart from the fluid channel and so as not to obstruct the fluid channel. Moreover, by virtue of the oblique orientation of the rotor and channel axes, the turbine may be positioned in a compact arrangement around or adjacent to the fluid channel and so the turbine may be accommodated within the dimensions of existing apparatus, such as required for example in oil and gas applications. |
