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Water current generator

一种发电机、水流的技术，应用在水力发电、海洋能发电、发动机元件等方向，能够解决陆用商业发电不可行、发电潜力低等问题

Inactive Publication Date: 2007-01-10
GENCOR IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disclosed generator rotates at a relatively low speed relative to conventional turbines, resulting in a rather low power generation potential
The configuration of this patent is not particularly feasible for land-based commercial power generation

Method used

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  • Water current generator
  • Water current generator
  • Water current generator

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Embodiment Construction

[0009] Referring now to the accompanying drawings, especially figure 1 , in which is shown an underwater electrical generator (generally indicated by reference numeral 10) for generating electricity comprising a stator core housing 12 and a rotor comprising at least one pair mounted on counter-rotating turbine hubs 18 and 20 The counter-rotating impeller blades or turbine blades 14 and 16. As shown, the hub mounted impeller blades 14 and 16 are circumferentially spaced from each other and their radially outer ends are open, ie, the tips are not connected to each other. The generator 10 is configured to be tied to an underwater anchor 22 . Tethers 24 interconnect the anchors 22 with joints 26 on the protrusions of the stator housing 12 . Additionally, if figure 1 As shown, electricity generated by generator 10 is preferably delivered by wire carried by tether 24 to the anchor and then via wire 28 to a land utility for commercial power distribution.

[0010] Such as figure...

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Abstract

The underwater electrical generator includes a stator core and counter-rotating turbine blades with permanent magnets in the hubs and windings in the core housing. When tethered by the nose of the housing, the water current rotates the turbine blades generating electrical current which is supplied for commercial use via the tether to a land-based utility. Ballast tanks are provided to maintain the generator at a predetermined depth. Small stator windings and permanent magnets are provided in the rotating hubs and core housing respectively to charge batteries in the hubs for altering the pitch of the blades such that the blades can be feathered for maintenance outages.

Description

technical field [0001] The present invention designs a generator for generating electricity in response to water flow, and in particular relates to an underwater generator with turbine blades rotatable around a central body. Background technique [0002] As the demand for environmentally friendly power generation increases, many alternatives to carbon-produced electricity have been proposed. For example, in US Patent No. 3,209,156 an underwater generator for supplying limited electrical power to an underwater measurement and sensing unit is disclosed. The supplied electricity provides energy for underwater communication and management of the marine equipment. The generator in the aforementioned patent includes a central housing mounted with a plurality of circumferentially spaced blades that rotate a hub journaled on the housing so that the arrangement of permanent magnets and stator windings generates electricity to Power is provided to the device. However, the disclosed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/18H02K21/12H02K1/27H02J7/14F03B3/04F03B3/14F03B13/00
CPCY02E10/223F05B2240/52F05B2240/917F03B13/10F05B2250/292F05B2250/314F05B2260/76Y02E10/28F03B17/061F05B2220/7068F05B2260/79Y02E10/22F05B2260/74Y02E10/20Y02E10/30F03B3/12F03B3/14
Inventor 大卫·F·布拉希尔斯
Owner GENCOR IND INC