A microjet based control system helps control the feedback loop that is created by an impinging jet of a STOVL aircraft. A plurality of microjets circumferentially encompass the outer periphery of the impinging jet and each issues a jet flow toward the jet flow created by the impinging jet. A contro
A microjet based control system helps control the feedback loop that is created by an impinging jet of a STOVL aircraft. A plurality of microjets circumferentially encompass the outer periphery of the impinging jet and each issues a jet flow toward the jet flow created by the impinging jet. A control system is connected to the microjets for adaptively controlling the microjets based on various operating parameters collected by various input devices.
대표청구항▼
1. A microjet system comprising:a jet having an exhaust port that has an outer periphery, the jet issuing a first jet flow having a first jet flow mass; a plurality of microjets located circumferentially about the exhaust port, each microjet issuing a second jet flow; a plenum having an input port f
1. A microjet system comprising:a jet having an exhaust port that has an outer periphery, the jet issuing a first jet flow having a first jet flow mass; a plurality of microjets located circumferentially about the exhaust port, each microjet issuing a second jet flow; a plenum having an input port fluid flow connected to a high pressure gas source and a plurality of output ports, each output port fluid flow connected to a respective one of the plurality of microjets; a control valve for controlling the plenum; and wherein the plurality of microjets controls a feedback loop whenever the feedback loop is created by the jet. 2. The microjet system as in claim 1 wherein each of the second jet flows that is issued by the plurality of microjets flows toward the first jet flow.3. The microjet system as in claim 1 wherein each second jet flow has a second jet flow mass and wherein the combined second jet flow masses are substantially less then the first jet flow mass.4. The microjet system as in claim 3 wherein the combined second jet flow masses are less then 20 percent of the first jet flow mass.5. The microjet system as in claim 1 wherein each second jet flow is supersonic.6. The microjet system as in claim 1 further comprising a control system connected to the plurality of microjets for adaptively controlling the microjets.7. The microjet system as in claim 6 further comprising input means for providing input data to the control system for use by the control system in providing adaptive control of the plurality of microjets.8. The microjet system as in claim 7 wherein the input means is selected from the group consisting of a high frequency response pressure transducer, a pressure tap, and a sensor.9. The microjet system as in claim 1 wherein the plurality of microjets are fluid flow connected to a high pressure gas source.10. The microjet system as in claim 1 further comprising a control system connected to the control valve for adaptively controlling the microjets.11. The microjet system as in claim 10 further comprising input means for providing input data to the control system for use by the control system in controlling the control valve.12. The microjet system as in claim 11 wherein the input means is selected from the group consisting of a high frequency response pressure transducer, a pressure tap, and a sensor.13. A microjet system comprising:an airframe having a fuselage and a pair of wings having a leading edge, a trailing edge, an upper surface and a lower surface; a jet, attached to the airframe, the jet having an exhaust port that has an outer periphery, the jet issuing a first jet flow generally in the lower surface facing direction, the first jet flow having a first jet flow mass; a plurality of microjets secured to the airframe and located circumferentially about the exhaust port, each microjet issuing a second jet flow, each second jet flow flows toward the first jet flow; and wherein the plurality of microjets controls a feedback loop whenever the feedback loop is created by the jet. 14. The microjet system as in claim 13 wherein each second jet flow has a second jet flow mass and wherein the combined second jet flow masses are substantially less then the first jet flow mass.15. The microjet system as in claim 14 wherein the combined second jet flow masses are less then 20 percent of the first jet flow mass.16. The microjet system as in claim 13 wherein each second jet flow is supersonic.17. The microjet system as in claim 13 further comprising a control system held by the airframe and connected to the plurality of microjets for adaptively controlling the microjets.18. The microjet system as in claim 17 further comprising input means for providing input data to the control system for use by the control system in providing adaptive control of the plurality of microjets.19. The microjet system as in claim 18 wherein the input means is selected from the group consisting of a high frequency response pressure transducer, a pressure tap, and a sensor.20. The microjet system as in claim 13 wherein the plurality of microjets are fluid flow connected to a high pressure gas source held by the airframe.21. The microjet system as in claim 20 further comprising:a plenum held by the airframe and having an input port fluid flow connected to the high pressure gas source and a plurality of output ports, each output port fluid flow connected to a respective one of the plurality of microjets; and a control valve held by the airframe for controlling the plenum. 22. The microjet system as in claim 21 further comprising a control system held by the airframe, the control system, connected to the control valve for adaptively controlling the microjets.23. The microjet system as in claim 22 further comprising input means for providing input data to the control system for use by the control system in controlling the control valve.24. The microjet system as in claim 23 wherein the input means is selected from the group consisting of a high frequency response pressure transducer, a pressure tap, and a sensor.25. A method of controlling a feedback loop created by impinging jet flow comprising the steps of:providing an airframe having a fuselage and a pair of wings having a leading edge, a trailing edge, an upper surface and a lower surface; providing a jet having an exhaust port that has an outer periphery, the jet issuing a first jet flow generally in the lower surface facing direction, the first jet flow having a first jet flow mass; attaching the jet to the airframe; providing a plurality of microjets circumferentially about the exhaust port, each microjet issuing a second jet flow, each second jet flow flows toward the first jet flow; and using the plurality of microjets to control the feedback loop whenever the feedback loop is created by the jet. 26. The method as in claim 25 wherein each second, jet flow has a second jet flow mass and wherein the combined second jet flow masses are substantially less then the first jet flow mass.27. The method as in claim 26 wherein the combined second jet flow masses are less then 20 percent of the first jet flow mass.28. The microjet based control system as in claim 25 wherein each second jet flow is supersonic.29. The method as in claim 25 further comprising the step of adaptively controlling the plurality of microjets.30. The method as in claim 29 further comprising the step of providing input data for use in adaptively controlling the plurality of microjets.31. The method as in claim 30 wherein the input data is provided by a high frequency response pressure transducer, a pressure tap, or a sensor.32. The method as in claim 25 wherein the plurality of microjets are fluid flow connected to a high pressure gas source held by the airframe.33. The method as in claim 32 further comprising the steps of:providing a plenum having an input port and a plurality of output ports; fluid flow connecting the input port to the high pressure gas source; fluid flow connecting each output port to a respective one of the plurality of microjets; and providing a control valve for controlling the plenum. 34. The method as in claim 33 further comprising the step of adaptively controlling the plurality of microjets via the control valve.35. The method as in claim 34 further comprising the step of providing input data for use in adaptively controlling the plurality of microjets.36. The method as in claim 35 wherein the input data is provided by a high frequency response pressure transducer, a pressure tap, or a sensor.37. A microjet system comprising:an airframe having a fuselage and a pair of wings having a leading edge, a trailing edge, an upper surface and a lower surface; a jet, attached to the airframe, the jet having an exhaust port that has an outer periphery, the jet issuing a first jet flow generally in the lower surface facing direction, the first jet flow having a first jet flow mass; a plurality of microjets secured to the airframe and located circumferentially about the exhaust port, each microjet issuing a second jet flow, which jet flow is supersonic; and wherein the plurality of microjets controls a feedback loop whenever the feedback loop is created by the jet. 38. The microjet system as in claim 37 wherein each second jet flow has a second jet flow mass and wherein the combined second jet flow masses are substantially less then the first jet flow mass.39. The microjet system as in claim 38 wherein the combined second jet flow masses are less then 20 percent of the first jet flow mass.40. The microjet system as in claim 37 further comprising a control system held by the airframe and connected to the plurality of microjets for adaptively controlling the microjets.41. The microjet system as in claim 40 further comprising input means for providing input data to the control system for use by the control system in providing adaptive control of the plurality of microjets.42. The microjet system as in claim 41 wherein the input means is selected from the group consisting of a high frequency response pressure transducer, a pressure tap, and a sensor.43. The microjet system as in claim 37 wherein the plurality of microjets are fluid flow connected to a high pressure gas source held by the airframe.44. The microjet system as in claim 43 further comprising:a plenum held by the airframe and having an input port fluid flow connected to the high pressure gas source and a plurality of output ports, each output port fluid flow connected to a respective one of the plurality of microjets; and a control valve held by the airframe for controlling the plenum. 45. The microjet system as in claim 44 further comprising a control system held by the airframe, the control system, connected to the control valve for adaptively controlling the microjets.46. The microjet system as in claim 45 further comprising input means for providing input data to the control system for use by the control system in controlling the control valve.47. The microjet system as in claim 46 wherein the input means is selected from the group consisting of a high frequency response pressure transducer, a pressure tap, and a sensor.48. A microjet system comprising:an airframe having a fuselage and a pair of wings having a leading edge, a trailing edge, an upper surface and a lower surface; a jet, attached to the airframe, the jet having an exhaust port that has an outer periphery, the jet issuing a first jet flow generally in the lower surface facing direction, the first jet flow having a first jet flow mass; a plurality of microjets secured to the airframe and located circumferentially about the exhaust port, each microjet connected to a high pressure gas source held by the airframe and each mircojet issuing a second jet flow; a plenum held by the airframe and having an input port fluid flow connected to the high pressure gas source and a plurality of output ports, each output port fluid flow connected to a respective one of the plurality of microjets; a control valve held by the airframe for controlling the plenum; and wherein the plurality of microjets controls a feedback loop whenever the feedback loop is created by the jet. 49. The microjet system as in claim 48 wherein each second jet flow has a second jet flow mass and wherein the combined second jet flow masses are substantially less then the first jet flow mass.50. The microjet system as in claim 49 wherein the combined second jet flow masses are less then 20 percent of the first jet flow mass.51. The microjet system as in claim 48 further comprising a control system held by the airframe and connected to the plurality of microjets for adaptively controlling the microjets.52. The microjet system as in claim 51 further comprising input means for providing input data to the control system for use by the control system in providing adaptive control of the plurality of microjets.53. The microjet system as in claim 52 wherein the input means is selected from the group consisting of a high frequency response pressure transducer, a pressure tap, and a sensor.54. The microjet system as in claim 48 further comprising a control system held by the airframe, the control system, connected to the control valve for adaptively controlling the microjets.55. The microjet system as in claim 54 further comprising input means for providing input data to the control system for use by the control system in controlling the control valve.56. The microjet system as in claim 55 wherein the input means is selected from the group consisting of a high frequency response pressure transducer, a pressure tap, and a sensor.57. A method of controlling a feedback loop created by impinging jet flow comprising the steps of:providing an airframe having a fuselage and a pair of wings having a leading edge, a trailing edge, an upper surface and a lower surface; providing a jet having an exhaust port that has an outer periphery, the jet issuing a first jet flow generally in the lower surface facing direction, the first jet flow having a first jet flow mass; attaching the jet to the airframe; providing a plurality of microjets circumferentially about the exhaust port, each microjet issuing a second jet flow, which second jet flow is supersonic; and using the plurality of microjets to control the feedback loop whenever the feedback loop is created by the jet. 58. The method as in claim 57 wherein each second jet flow has a second jet flow mass and wherein the combined second jet flow masses are substantially less then the first jet flow mass.59. The method as in claim 58 wherein the combined second jet flow masses are less then 20 percent of the first jet flow mass.60. The method as in claim 57 further comprising the step of adaptively controlling the plurality of microjets.61. The method as in claim 60 further comprising the step of providing input data for use in adaptively controlling the plurality of microjets.62. The method as in claim 61 wherein the input data is provided by a high frequency response pressure transducer, a pressure tap, or a sensor.63. The method as in claim 57 wherein the plurality of microjets are fluid flow connected to a high pressure gas source held by the airframe.64. The method as in claim 63 further comprising the steps of:providing a plenum having an input port and a plurality of output ports; fluid flow connecting the input port to the high pressure gas source; fluid flow connecting each output port to a respective one of the plurality of microjets; and providing a control valve for controlling the plenum. 65. The method as in claim 64 further comprising the step of adaptively controlling the plurality of microjets via the control valve.66. The method as in claim 65 further comprising the step of providing input data for use in adaptively controlling the plurality of microjets.67. The method as in claim 66 wherein the input data is provided by a high frequency response pressure transducer, a pressure tap, or a sensor.68. A method of controlling a feedback loop created by impinging jet flow comprising the steps of:providing an airframe having a fuselage and a pair of wings having a leading edge, a trailing edge, an upper surface and a lower surface; providing a jet having an exhaust port that has an outer periphery, the jet issuing a first jet flow generally in the lower surface facing direction, the first jet flow having a first jet flow mass; attaching the jet to the airframe; providing a plurality of microjets circumferentially about the exhaust port, each microjet connected to a high pressure gas source held by the airframe and each mircojet issuing a second jet flow; providing a plenum having an input port and a plurality of output ports; fluid flow connecting the input port to the high pressure gas source; fluid flow connecting each output port to a respective one of the plurality of microjets; and providing a control valve for controlling the plenum; and using the plurality of microjets to control the feedback loop whenever the feedback loop is created by the jet. 69. The method as in claim 68 wherein each second jet flow has a second jet flow mass and wherein the combined second jet flow masses are substantially less then the first jet flow mass.70. The method as in claim 69 wherein the combined second jet flow masses are less then 20 percent of the first jet flow mass.71. The method as in claim 68 further comprising the step of adaptively controlling the plurality of microjets.72. The method as in claim 71 further comprising the step of providing input data for use in adaptively controlling the plurality of microjets.73. The method as in claim 72 wherein the input data is provided by a high frequency response pressure transducer, a pressure tap, or a sensor.74. The method as in claim 68 further comprising the step of adaptively controlling the plurality of microjets via the control valve.75. The method as in claim 74 further comprising the step of providing input data for use in adaptively controlling the plurality of microjets.76. The method as in claim 75 wherein the input data is provided by a high frequency response pressure transducer, a pressure tap, or a sensor.
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