Matches 151 - 200 out of 508 < 1 2 3 4 5 6 7 8 9 10 11 >
Match Document Document Title
5934611 Low drag inlet design using injected duct flow  
An air intake system disposable in an air vehicle turbo engine housing disposed in an exterior airflow for selectively reducing external engine boundary layer separation drag and external engine...
5918834 Retractable sensor system for an aircraft  
A retractable sensor system (12) for an aircraft has a sensor (16) coupled to an actuation mechanism (18). The sensor (16) moves from a retracted position to an expanded position. A reinforced...
5913494 Blade seal for an aircraft  
A blade seal (20) for an aircraft has a mounting structure (22). A composite blade (26) is attached to the mounting structure (22). The composite blade (26) has a plurality of holes (28). An...
5909858 Spanwise transition section for blended wing-body aircraft  
A blended wing-body aircraft includes a central body, a wing, and a transition section which interconnects the body and the wing on each side of the aircraft. The two transition sections are...
5908176 In-flight adaptive performance optimization (APO) control using redundant control effectors of an aircraft  
Practical application of real-time (or near real-time) Adaptive Performance Optimization (APO) is provided for a transport aircraft in steady climb, cruise, turn descent or other flight conditions...
5901928 Active turbulence control technique for drag reduction  
A method of disrupting a turbulent region of a boundary layer within a fluid flow passing over a surface to decrease momentum transfer, and thus friction drag, between the turbulent flow and the...
5901929 Control and augmentation of passive porosity through transpiration control  
A device for controlling pressure loading of a member caused by a fluid moving past the member or the member moving through a fluid. The device consists of a porous skin mounted over the solid...
5899413 Non-waisted fuselage design for supersonic aircraft  
A method for designing a non-waisted fuselage for supersonic wing/fuselage configurations that increases the fuselage volume and improves the supersonic aerodynamic performance compared to a...
5891551 Apparatus for reducing drag across a flow surface  
An apparatus for reducing drag over a flow surface and methods for using same is disclosed in one presently preferred embodiment as including a drag reduction member comprising a means for reducing...
5884873 Suction generator system in an aircraft for maintaining a laminar boundary flow  
Boundary layer air on the skin structure of an aircraft is sucked off through suction holes in the aircraft skin structure by a least one ejector pump. The ejector pump is operated by at least one...
5884871 Use of absorbing walls for laminar flow control  
A method is provided for hypersonic laminar flow control which uses the effect of boundary layer stabilization by an ultrasonically transparent coating. A hypersonic body surface is covered by the...
5884872 Oscillating flap lift enhancement device  
A lift enhancing device for a solid wing is disclosed wherein a where a mr driven, flap dynamically oscillating flap mechanism produces an increase in the lifting capabilities of the wing.
5860626 Surface of a body exposed to circumfluent fluid  
The invention relates to a surface of a body exposed to circumfluent fluid with elevations protruding from the base surface. In order to design the surface of a body exposed to circumfluent fluid...
5848769 Drag reduction article  
An article for reducing the drag caused by a fluid flowing over a surface comprises an outer layer having an exposed patterned surface that reduces drag, an inner reinforcing layer, and an...
5845879 Inflatable conformable fuel tank  
The invention discloses a deployable, inflatable conformable fuel tank assembly constructed to be installed at a certain location on an aircraft and to be retained at that certain location...
5836549 Airfoil leading edge with cavity  
A jet airplane capable of supersonic flight has airfoils with leading edges. Each leading edge has a cavity which extends for substantially the entire length of the airfoil. The leading edge also...
5818947 Reducing flow-induced resonance in a cavity  
A method and system are provided for reducing flow-induced resonance in a structure's cavity. A time-varying disturbance is introduced into the flow along a leading edge of the cavity. The...
5806789 Optical apparatus for an aircraft  
A fairing for an aircraft is provided, having a roll axis with a turret coupled to the front end of the fairing for rotation about the roll axis. An opening is formed through the front end of the...
5806807 Airfoil vortex attenuation apparatus and method  
A vortex attenuating airfoil (24) includes an outboard area (28). The outboard area includes a deflector (40) which is disposed in the inboard direction from a tip (30). An air passage (46) extends...
5803405 Expandable aircraft section  
An expandable section (12) is provided for an aircraft (10) which includes a movable rigid aircraft section (18) which is attached to the fixed aircraft structure (16) by an elastomeric transition...
5803409 Method and apparatus for reducing the drag of flows over surfaces  
An apparatus, and its accompanying method, for reducing the drag of flows over a surface includes arrays of small disks and sensors. The arrays are embedded in the surface and may extend above, or...
5797563 System for increasing the aerodynamic and hydrodynamic efficiency of a vehicle in motion  
The system includes radiation generation and transmission components which radiate tuned microwave electromagnetic energy outwardly from a vehicle through an antenna into a fluid medium through...
5794887 Stagnation point vortex controller  
Means are described for controlling the asymmetry of the leeside vortices developing over a pointed object placed at an angle of attack in a flowing fluid. Unlike prior art, the stagnation point...
5785282 Half-plow vortex generators for rotorcraft blades for reducing blade-vortex interaction noise  
In one embodiment for a helicopter main rotor assembly, a half-plow vortex generator is mounted in combination with the upper aerodynamic surface of each main rotor blade and is operative to...
5779196 Ram air drive laminar flow control system  
An improvement to supersonic laminar flow control suction systems, including an inlet air duct (32) for providing subsonic ram engine inlet air, is provided. The inlet air duct (32) supplies air...
5779189 System and method for diverting boundary layer air  
A diverterless engine inlet system that integrates a "bump" surface with a forward swept, aft-closing cowl to divert substantially all of the boundary layer air from the inlet. The bump includes an...
5775643 Passive flow control aero-optical turret assembly  
The invention provides an aero-optical turret assembly that provides high Strehl ratios throughout a wide range of azimuthal look angles. The turret assembly includes a duct extending from aft of...
5772156 Aircraft boundary layer control system with discharge transpiration panel  
An improvement to boundary layer control system, including a transpiration panel (58) for transpiring suction air in a distributed manner, is provided. The transpiration panel (58) replaces the...
5755408 Fluid flow control devices  
A fluid flow control device, comprising a flow surface over which a fluid flows, a flow effect means located on the flow surface and operated by pressure such that the flow effect means improves...
5743493 Boundary layer control in aerodynamic low drag structures  
An aerodynamic low drag structure (12) has a skin (18, 19, 20) which in movement of the structure (12) relative to a surrounding gaseous fluid medium produces at a flow control region of the skin...
5730391 Universal fluid-dynamic body for aircraft and watercraft  
A body configuration for improving the fluid-dynamic performance efficiency of aircraft and watercraft comprises a generally conical upper segment (54) and a generally conical lower segment (56)...
5721402 Noise suppression system for a jet engine  
A noise suppression system for a jet engine, the system having a substrate formed of open cell material, a layer of microporous material covering at least a portion of one surface of the substrate,...
5699981 Aircraft cavity acoustic resonance suppression system  
An aircraft cavity acoustic resonance suppression system is described which comprises a small diameter, substantially cylindrically shaped member disposed substantially parallel to and spaced up to...
5694858 Railway vehicle with micro pressure wave reducing contour for tunnel travel  
To provide a high speed vehicle having a nose shape which reduces a pressure gradient of a micro pressure wave and secures the capacity necessary for each of the driver's cab and the passenger's...
5695154 Gap filler device  
A gap filler device applicable to a gap formed between side walls of adjacent panels comprises an elongated horizontal portion extending across the gap and a vertical portion extending into the...
5692704 Body tail unit for a commercial aircraft  
In a tail unit for a commercial aircraft having a pressurized cabin, the trimmable elevator assembly and the rudder assembly are connected to a shortened fuselage tail section. The fuselage tail...
5683061 Fighter aircraft  
A fighter aircraft achieves low aerodynamic drag and radar signature without sacrificing flight performance through a unique arrangement of the air inlets, the weapons bays, and the main landing...
5683062 Aircraft anti-insect system  
Insect debris is removed from or prevented from adhering to insect impingement areas of an aircraft, particularly on an inlet cowl of an engine, by heating the area to 180°-500° C. An apparatus...
5676333 Supersonic aircraft shock wave energy recovery system  
This invention outlines excitation means to transform the linear momentum of an underwing energized jet into rotational form in a selective manner to provide an asymmetric shear layer to increase...
5677508 Missile having non-cylindrical propulsion section  
A missile has a non-cylindrical fuselage over at least a portion of its length, with a non-cylindrical propulsion system contained within the non-cylindrical portion of the fuselage. The fuselage...
5669583 Method and apparatus for covering bodies with a uniform glow discharge plasma and applications thereof  
Method and apparatus for covering a free-standing body with a uniform glow discharge plasma, particularly at atmospheric pressure. The method may be used to provide a body coated with such a...
5653406 Nacelle apparatus for an airplane  
A nacelle apparatus for an airplane of the type having nacelles for jet engines suspended under a wing via pylons includes lip-shaped small wings corresponding to the nacelles for the jet engines....
5634613 Tip vortex generation technology for creating a lift enhancing and drag reducing upwash effect  
Methods for using tip generated vortices to improve performance of foils. These methods include generating a substantially streamwise beneficial vortex (74) near the outboard end (60) of a foil...
5618363 Method of manufacturing a porous material  
A porous material is manufactured by weaving polycarbonate fibres through a tow of carbon fibres which has been pre-impregnated with an epoxy resin. A second layer of pre-impregnated carbon fibres...
5601254 Single sided backbone strut for air data sensor  
An air data sensor strut made of a single block of material has one side finished in a smooth contour, and has grooves in an opposite side of the strut for receiving pressure carrying conduits or...
5590854 Movable sheet for laminar flow and deicing  
A movable sheet overlying a wing is disclosed that creates laminar flow over its exposed surface. The movable sheet serves as an integral, retractable shield for protecting a suction support...
5582365 Foreign object deflector for protecting equipment on the lower fuselage of an aircraft  
A foreign object deflector for installation on the lower fuselage of an aircraft forward of equipment, such as antennas and radomes, which are to be protected by the deflector. During takeoff and...
5578761 Adaptive piezoelectric sensoriactuator  
An adaptive algorithm implemented in digital or analog form is used in conjunction with a voltage controlled amplifier to compensate for the feedthrough capacitance of piezoelectric...
5538285 Ski pole shaft with rotating wing foil  
A device for reducing wind resistance or drag on a ski pole shaft comprising a wing foil device rotatably mounted over a significant portion of a cylindrical ski pole shaft for self-aligning...
5527152 Advanced wind turbine with lift cancelling aileron for shutdown  
An advanced aileron configuration for wind turbine rotors featuring an independent, lift generating aileron connected to the rotor blade. The aileron has an airfoil profile which is inverted...
Matches 151 - 200 out of 508 < 1 2 3 4 5 6 7 8 9 10 11 >