[특허]Electro-hydrodynamic system

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IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02N-003/00 H02N-001/00
출원번호	US-0948501 (2013-07-23)
등록번호	US-9698706 (2017-07-04)
발명자 / 주소	White, Dawn Stevenson, Randy
출원인 / 주소	Accio Energy, Inc.
대리인 / 주소	Schox, Jeffrey
인용정보	피인용 횟수 : 0 인용 특허 : 45

초록 ▼

An electro-hydrodynamic system including an energy harvester and an adjustable member, wherein the energy harvester includes a charge source including: an injector configured to emit particles into a wind stream and an electrode configured to charge the particles to a first polarity and to generate a first electric field. The adjustable member supports the energy harvester, and is configured to control a distance between electrical ground and at least one component of the energy harvester. A method for controlling the electric field magnitude of an electro-hydrodynamic system including placing an energy harvester comprising a charge source at a distance away from electrical ground, the distance being an equilibrium distance; receiving a first measurement of a parameter indicative of electric field magnitude near the charge source; and in response to the first measurement surpassing a threshold, increasing the distance between the energy harvester and electrical ground.

대표청구항 ▼

1. An electrohydrodynamic system comprising: an energy harvester configured to extract energy from a fluid stream, the energy harvester comprising: a charge source configured to introduce charged particles into the fluid stream;a field shaper having a characteristic dimension, the field shaper arranged downstream from the charge source along the fluid stream;a member supporting a component of the energy harvester a distance from electrical ground, the distance being at least eight times the characteristic dimension of the field shaper, wherein the member is adjustable and controls the distance between the component of the energy harvester and electrical ground; anda controller configured to control the member in response to an operational parameter measurement, wherein the operational parameter measurement comprises a parameter indicative of electric field magnitude proximal the charge source. 2. The system of claim 1, wherein the field shaper generates an electric field having a direction that promotes particle movement with the fluid stream. 3. The system of claim 2, wherein the charge source comprises an injector and an electrode coupled to the injector. 4. The system of claim 1, wherein the characteristic dimension comprises a largest physical dimension of the field shaper. 5. The system of claim 4, wherein the field shaper is ellipsoid and the characteristic dimension is a major axis of the field shaper. 6. The system of claim 1, wherein the component of the energy harvester supported by the member comprises the field shaper. 7. The system of claim 1, wherein the energy harvester further comprises a downstream collector and a load electrically connected between the charge source and the downstream collector. 8. The system of claim 1, further comprising a drive mechanism, connected to the member, that controls member adjustment. 9. The system of claim 1, wherein the controller sends a signal to increase the distance between the component and electrical ground in response to the operational parameter measurement surpassing a boundary of a predetermined range. 10. The system of claim 9, wherein the controller sends a signal to decrease the distance between the component and electrical ground in response to a second measurement of the operational parameter that falls within the boundaries of the predetermined range. 11. The system of claim 1, wherein the member comprises a telescoping pole. 12. The system of claim 1, wherein a portion of the member proximal the charge source is curved. 13. The system of claim 1, wherein the member is mounted to the electrical ground. 14. An energy harvesting system comprising: an energy harvester having a characteristic dimension, the energy harvester comprising: a charge source that introduces charged particles of a single polarity into a fluid stream, charged particle flow away from the charge source inducing a first electric field; anda field shaper configured to induce a second electric field opposing the first electric field;a distance element that controls a distance between a component of the energy harvester and electrical ground, the distance being at least eight times the characteristic dimension of the energy harvester, wherein the distance element is adjustable and adjusts the distance between the component of the energy harvester and electrical ground;a sensor configured to measure a system parameter; anda controller configured to control distance element adjustment based on the system parameter measurement, wherein the system parameter measurement comprises a parameter indicative of electric field magnitude proximal the charge source. 15. The system of claim 14, wherein the characteristic dimension of the energy harvester comprises a major axis of the field shaper. 16. The system of claim 14, wherein the charge source comprises an injector and a charging rail, and the field shaper comprises a structure circumscribing the injector.

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