IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0273650
(2008-11-19)
|
등록번호 |
US-8251318
(2012-08-28)
|
발명자
/ 주소 |
- Khozikov, Vyacheslav
- Liu, Shengyi
|
출원인 / 주소 |
|
대리인 / 주소 |
Hope Baldauff Hartman, LLC
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
10 |
초록
▼
An array of electrodes for selectively generating plasma is described herein. The array includes a first electrode disposed along a first dielectric, and at least a second electrode. A second electrode is sandwiched between the first dielectric and the second dielectric. A power supply provides elec
An array of electrodes for selectively generating plasma is described herein. The array includes a first electrode disposed along a first dielectric, and at least a second electrode. A second electrode is sandwiched between the first dielectric and the second dielectric. A power supply provides electrical power to at least the first and second electrodes. In turn, a power supply controller controls the power supply, so as to regulate the electrical power supplied to at least the first and the second electrodes, and to cause the first and second electrodes to generate and move plasma to modify different airflow patterns.
대표청구항
▼
1. An array of electrodes for generating plasma, the array comprising: a first electrode having a leading and trailing edge disposed along a first dielectric;a second electrode having a leading and trailing edge sandwiched between the first dielectric and a second dielectric such that the leading ed
1. An array of electrodes for generating plasma, the array comprising: a first electrode having a leading and trailing edge disposed along a first dielectric;a second electrode having a leading and trailing edge sandwiched between the first dielectric and a second dielectric such that the leading edge of the first electrode is coincident with or extending beyond the trailing edge of the second electrode;at least a third electrode having a leading and trailing edge, wherein the second dielectric is sandwiched between the second and third electrodes such that the leading edge of the second electrode is coincident with or extending beyond the trailing edge of the third electrode;at least one power supply providing electrical power to the first, second, and at least third electrodes; anda power supply controller operative to control the power supply, so as to regulate the electrical power supplied to the first, second, and at least third electrodes, and so as to cause the first, second, and at least third electrodes to generate and move plasma, thereby inducing air bulk motion along an airfoil. 2. The array of claim 1, wherein the first electrode, first dielectric and the second electrode comprise a first plasma-generating unit that is independently controllable by the power supply controller, or controllable by a resistor-capacitor (RC) network coupled to the power supply controller, to generate a first plasma cluster proximate the first unit, and wherein the second electrode, second dielectric and third electrode comprise a second plasma-generating unit that is controllable by the power supply controller, or controllable by the RC network, to generate at least a second plasma cluster proximate the second unit. 3. The array of claim 2, wherein the power supply controller is operative to coordinate generation of the plasma clusters by the electrodes, to cause the first and second electrodes to move the first plasma cluster, and to cause the second and third electrodes to move the second plasma cluster independently of, or in cooperation with, moving the first plasma cluster. 4. The array of claim 1, wherein the first dielectric has a leading edge that extends beyond the trailing edge of first electrode, and wherein the leading edge of the dielectric is exposed to air when the array is installed onto a vehicle. 5. The array of claim 4, wherein the second electrode has a leading edge that extends beyond the first dielectric, and wherein the second dielectric has a leading edge that extends beyond a trailing edge of the second electrode. 6. The array of claim 1, wherein the power supply applies a waveform to the electrodes. 7. The array of claim 6, wherein the electrodes are operative to generate respective plasma clusters in response to a first phase of a cycle of the applied waveform. 8. The array of claim 7, wherein the electrodes are operative to move the plasma clusters in response to a further phase of a cycle of the applied waveform. 9. The array of claim 1, wherein the first and second electrodes are elongated along respective lengths, and are arranged in parallel with one another so that at least the first and second electrodes are disbanded along their lengths. 10. The array of claim 9, wherein the second electrode is disposed relative to the first electrode and to the first dielectric, so that only a portion of the second electrode is exposed beyond the first dielectric. 11. The array of claim 1, wherein the first, second, and third electrodes and the first, second, and third dielectrics have respective thicknesses, such that the second electrode is cascaded from the first electrode along the thickness of the first dielectric, and the third electrode is cascaded from the second electrode along the thickness of the second dielectric. 12. A method for constructing an array of electrodes for generating plasma, the method comprising: providing at least first, second, and third electrodes, and at least first and second dielectrics;sandwiching the first dielectric between the first and second electrodes;staggering the second electrode relative to the first electrode, such that a first portion comprising a leading edge of the second electrode extends beyond a leading edge of the first dielectric and a second portion of the second electrode comprising a trailing edge does not extend beyond a leading edge of the first electrode;sandwiching the second dielectric between the second and third electrodes;staggering the third electrode relative to the second electrode, such that a first portion comprising the leading edge of the third electrode extends beyond the second dielectric and a second portion comprising a trailing edge of the second electrode does not extend beyond leading edge of the first electrode;placing the first, second, and at least third electrodes in communication with a power supply configured for providing electrical power to the first, second, and at least third electrodes; andproviding a power supply controller operative to control individually the electrical power supplied to the first, second, and at least third electrodes, so as to generate and move respective first and second plasma clusters proximate the first and second dielectrics, inducing air bulk motion. 13. The method of claim 12, further comprising installing the array of electrodes onto an airfoil so as to control streamwise airflows. 14. The method of claim 12, further comprising installing the array of electrodes onto an airfoil so as to control spanwise airflows. 15. The method of claim 13, further comprising installing the array of electrodes onto the airfoil so as to control a separation point on the airfoil. 16. The method of claim 12, further comprising providing a resistor-capacity (RC) network, and coupling it to control the power supply.
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