Integrally formed tubular turbine comprising frustoconically-faced annular flow pathway
First Claim
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1. A turbine configured to be formed integrally with a tubular, for extracting energy from fluid flowing along a fluid channel, the turbine comprising;
- a flow pathway in communication with the fluid channel, such that fluid from the fluid channel may flow to and from the flow pathway, the flow pathway extending in an annulus around the fluid channel, and separated from the fluid channel by an internal body portion, the internal body portion having a reduced diameter section having a frustoconical upstream face and a frustoconical downstream face, the frustoconical upstream face being provided with a plurality of angled inlets to the flow pathway and the frustoconical downstream face being provided with a plurality of angled outlets from the flow pathway; and
a moveable element disposed around the fluid channel, in the flow pathway;
the moveable element moveable under action of fluid flowing along the flow pathway so as to extract energy therefrom,wherein fluid from the fluid channel passes through the plurality of angled inlets into the flow pathway, along the flow pathway, and exits the flow pathway through the plurality of angled outlets, back into the fluid channel.
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Abstract
A turbine for use in extracting energy from fluid flowing along a fluid channel defines a portion of the fluid channel and includes a flow pathway in communication with the fluid channel. A moveable element, such as a rotor, is disposed around the fluid channel and is moveable under the action of fluid flowing along the flow pathway so as to extract energy therefrom. The turbine may be associated with other apparatus in the fluid system, and may be capable of storing extracted energy for later use.
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Citations
20 Claims
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1. A turbine configured to be formed integrally with a tubular, for extracting energy from fluid flowing along a fluid channel, the turbine comprising;
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a flow pathway in communication with the fluid channel, such that fluid from the fluid channel may flow to and from the flow pathway, the flow pathway extending in an annulus around the fluid channel, and separated from the fluid channel by an internal body portion, the internal body portion having a reduced diameter section having a frustoconical upstream face and a frustoconical downstream face, the frustoconical upstream face being provided with a plurality of angled inlets to the flow pathway and the frustoconical downstream face being provided with a plurality of angled outlets from the flow pathway; and a moveable element disposed around the fluid channel, in the flow pathway; the moveable element moveable under action of fluid flowing along the flow pathway so as to extract energy therefrom, wherein fluid from the fluid channel passes through the plurality of angled inlets into the flow pathway, along the flow pathway, and exits the flow pathway through the plurality of angled outlets, back into the fluid channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for extracting energy from fluid flowing along a fluid channel, comprising;
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providing a turbine, the turbine configured to be formed integrally with a tubular, and which comprises a flow pathway in communication with the fluid channel, such that fluid from the fluid channel may flow to and from the flow pathway, the flow pathway extending in an annulus around the fluid channel and being separated from the fluid channel by an internal body portion, the internal body portion having a reduced diameter section having a frustoconical upstream face and a frustoconical downstream face, the frustoconical upstream face being provided with a plurality of angled inlets to the flow pathway and the frustoconical downstream face being provided with a plurality of angled outlets from the flow pathway; passing fluid from the fluid channel along the flow pathway; and moving a moveable element which is disposed around the fluid channel, in the flow pathway, under an action of the fluid flowing along the flow pathway so as to extract energy therefrom, wherein fluid from the fluid channel passes through the plurality of angled inlets into the flow pathway, along the flow pathway, and exits the flow pathway through the plurality of angled outlets, back into the fluid channel. - View Dependent Claims (18, 19, 20)
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Specification