Power plants – Reaction motor – With thrust direction modifying means
Reexamination Certificate
2005-11-08
2005-11-08
Kim, Ted (Department: 3746)
Power plants
Reaction motor
With thrust direction modifying means
C060S231000, C060S771000, C239S265170, C239S265230
Reexamination Certificate
active
06962044
ABSTRACT:
The present invention reveals a method and apparatus for controlling the effective area and thrust vector angle of a fluid flow. In one embodiment, the fluid flow is controlled in an advanced, high aspect ratio, complex aperture geometry nozzle using asymmetric injection into the subsonic portion of the fluid flow. The present invention vectors the primary flow by partially blocking the flow with an opposed flow across the flow field. A fluidic flow field is defined in a flow container that directs a pressurized, primary fluidic flow from the container towards an exit of the container. A nozzle may cooperate with the exit of the flow container to control the fluidic flow as it exits the flow container. One or more injectors associated with the container are proximate to the effect throat of the primary flow while other are located downstream of to introduce an opposing fluidic flow that interacts with the primary fluidic flow. A controller associated with the injectors directs the injectors to provide the opposing flow as needed to achieve a desired partial blockage of the primary flow, thereby vectoring the primary flow.
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AIAA 95-2603; Conceptual Development of Fixed-Geometry Nozzles Using Fluidic Injection for Throat Area Control; D.N. Miller, et al; Jul. 10, 1995; pp. 1-10.
AIAA 95-2604; A Static Investigation of Fixed-Geometry Nozzles Using Fluidic Injection for Throat Area Control; J.A. Catt, et al; Jul. 10, 1995; pp. 1-9.
AIAA 95-2605; Fuidic Control of Nozzle Flow—Some Performance Measurments; J. Federspiel, et al; Jul. 10, 1995; pp. 1-7.
Ginn Kerry B.
Hamstra Jeffrey W.
Miller Daniel N.
Yagle Patrick J.
Kim Ted
Koesnter Bertani, LLP
Lockheed Martin Corporation
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