Matches 1 - 36 out of 36

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8490917 Cold fuel cooling of intercooler and aftercooler  
A high-altitude aircraft powerplant including an engine, a two-stage turbocharger having an intercooler and an aftercooler, a cryogenic hydrogen fuel source, and a cooling system including a...
8448898 Autonomous solar aircraft  
Methods and apparatus for unmanned long endurance flights are provided herein. In some embodiments, a lightweight solar wing for unmanned aircraft may include at least one airfoil profile, a top...
8308106 Hydrogen powered aircraft  
Disclosed is an aircraft, configured to have a wide range of flight speeds, consuming low levels of power for an extended period of time, while supporting a communications platform with an...
8205827 Hydrazine monopropellant decomposition air turboprop engine  
An engine for use in operating an aircraft is disclosed, the engine comprising a decomposition chamber configured to decompose into at least one combustible constituent element a first chemically...
8196862 Cold fuel cooling of intercooler and aftercooler  
A high-altitude aircraft powerplant including an engine, a two-stage turbocharger having an intercooler and an aftercooler, a cryogenic hydrogen fuel source, and a cooling system including a...
8028951 Hydrogen powered aircraft  
Disclosed is an aircraft, configured to have a wide range of flight speeds, consuming low levels of power for an extended period of time, while supporting a communications platform with an...
8011616 Hydrogen powered aircraft  
Disclosed is an aircraft, configured to have a wide range of flight speeds, consuming low levels of power for an extended period of time, while supporting a communications platform with an...
7856295 Device for issuing authorization to act on the operating conditions of an aircraft engine and engine control system comprising same  
A device for issuing authorization to act on the operating conditions of an aircraft engine and engine control system includes a first unit for determining particular parameters concerning the...
7806365 Long endurance hydrogen powered vehicle  
Hydrogen powered air vehicles that in some embodiments can fly with very long endurance (10 or more days) at altitudes over 60,000 ft carrying payloads of up to 2,000 pounds. Embodiments may...
7686680 Closed-loop cabin pressure control system test method with actual pressure feedback  
Testing of an aircraft pressure control system may be performed without use of an altitude chamber. Aircraft cabin configuration date may be modeled and used, along with high resolution positional...
7637457 Rankine-Brayton engine powered solar thermal aircraft  
A solar thermal powered aircraft powered by heat energy from the sun. A Rankine-Brayton hybrid cycle heat engine is carried by the aircraft body for producing power for a propulsion mechanism,...
7281681 Hydrogen powered aircraft  
Disclosed is an aircraft, configured to have a wide range of flight speeds, consuming low levels of power for an extended period of time, while supporting a communications platform with an...
7270295 Solar thermal aircraft  
A solar thermal powered aircraft powered by heat energy from the sun. A heat engine, such as a Stirling engine, is carried by the aircraft body for producing power for a propulsion mechanism, such...
6808145 Dual-mode airbreathing propulsion system  
The present invention includes a method for a dual-mode propulsion system. During the first mode of operation, intake air is liquefied through a cooling heat exchanger and condenser using a...
6568633 Fuel cell powered electric aircraft  
Electrically powered aircraft having fuel cells as at least a partial source of electrical energy. In many instances the electrical energy powers an electric motor used to propel the aircraft. In...
6357700 Electrically powered spacecraft/airship  
An spacecraft/airship, which uses buoyancy and thrusters to ascend into space with lifting gas as propellant or fuel for thrusters, which may be conventional thrusters or electric turbojets or ion...
6283410 Secondary power integrated cabin energy system for a pressurized aircraft  
Increased efficiency of operation in pressurized aircraft may be obtained by employing pressurized air to be discharged from an aircraft cabin 10 as combustion air by applying it to the inlet 42...
6224016 Integrated flexible solar cell material and method of production  
A novel energy producing flexible material is provided particularly suited for high altitude and stratospheric applications. The flexible energy producing covering includes a flexible solar cell...
5743489 Aircraft with two alternatingly operated propellers of different radius  
An aircraft has at least one drive motor coupled to first and second propellers for forward thrust of the aircraft. The first propeller is dimensioned for takeoff and landing conditions and for...
5167117 Method and apparatus for cooling an airplane engine  
An apparatus for cooling components of an airplane engine at least partially operated by a cryogenically stored propellant via cooling air includes an air supply line for supplying the cooling air...
5106035 Aircraft propulsion system using air liquefaction and storage  
An aircraft propulsion system includes a propeller for propelling the aircraft, an electric motor for driving the propeller, and an electrochemical fuel cell for receiving an oxidizer and...
5074489 Method and system for supporting an airborne vehicle in space  
A method and system for supporting an airborne vehicle in space over a predetermined location and for an extensive period, comprises coupling the airborne vehicle by cables to a plurality of...
4907764 Infrared radiation powered lightweight aircraft  
A high altitude reconnaissance platform is implemented by an ultralight aircraft powered solely by long wave infrared cells mounted on the lower surfaces of the wings and the fuselage. The...
4524552 Mechanism for deploying a deployable truss beam  
A deployment system for a deployable truss structure particularly adapted to space applications which has high structural efficiency and can be remotely operated in a controlled, sequential...
4164896 Control alternating system  
A cabin pressure control system has two independent controllers, one of which is used as primary controller while the other serves as standby. On alternate flights the identity of primary and...
4007892 Aircraft flight method and apparatus for boosting an aircraft to a very high altitude and thereafter boosting the aircraft to a high rate of forward speed  
This invention relates to a method and apparatus whereby functioning airborne conventional aircraft and engine combinations may be assisted during flight in attaining above normal airspeeds and/or...
3981466 Integrated thermal anti-icing and environmental control system  
An integrated thermal anti-icing and environmental control system for a gas turbine powered aircraft uses hot high pressure bleed air from the turbine compressor to de-ice the wings and the engine...
3583658 SINGLE-ENGINE AIRCRAFT AIR-CONDITIONING SYSTEM  
An air-conditioning system for single-engine aircraft having a condenser and compressor mounted in the fuselage forward of the center of gravity of the aircraft and an evaporator positioned behind...
3487993 COMPRESSOR BLEED AIR FLOW CONTROL  
3389553 Combined system for aircraft engine and cabin supercharging  
3369777 Aircraft cooling system  
3324675 Aircraft air conditioning systems  
2972940 Cooling system for communication chassis  
2877966 Common oxygen supply for engine and cabin of high altitude aircraft  
2852213 Automatic control of aircraft having pressurized cabins or the like  
2851254 High altitude cabin pressurization and air conditioning system  
Matches 1 - 36 out of 36