Abstract:
A system in one embodiment includes a detection unit (116), a boil- off auxiliary power unit (140), and a controller (190). The detection unit is configured to detect a characteristic of a boil-off gas stream (123) from a cryotank (110) configured to hold a cryogenic fluid. The boil-off auxiliary power unit (140) is configured to receive the boil-off gas stream (123) and use the boil-off gas stream to provide auxiliary power to a vehicle system. The controller (190) is configured to acquire information from the detection unit (116) corresponding to the characteristic; determine, using the information acquired from the detection unit, an available boil-off auxiliary energy that is available from the boil-off auxiliary power unit; determine a mode of operation of the vehicle system; determine a required auxiliary energy for the vehicle system; and to operate the auxiliary power unit based on the available boil-off auxiliary energy, the mode of operation, and the required auxiliary energy.
Abstract:
L'objet de l'invention est un dispositif de support et de maintien d'un réservoir (100) de forme générale cylindrique ou conique et d'axe principal X, qui comprend une paire de premiers moyens (2a, 2b, 2c, 2d) de retenue du réservoir selon un axe vertical Z à chacune d'une première (101) et d'une seconde (102) extrémité du réservoir, un deuxième moyen (3) de retenue du réservoir selon un axe horizontal Y perpendiculaire à l'axe principal à la première (101) extrémité du réservoir et un troisième moyen de retenue à rotule (4) autour de l'axe vertical relié à la seconde extrémité (102) du réservoir.
Abstract:
An aircraft having a turbine engine (500) having a bleed air output line (501), a cryogenic fuel system (502) having a cryogenic fuel tank (504) for storing cryogenic fuel and a supply line (506) operably coupling the tank to the turbine engine (500), and an on board inert gas generating system (OBIGGS) (510) fluidly coupled to the bleed air output (501) and having a nitrogen rich stream output line (512) and an oxygen rich stream output line (514).
Abstract:
A rubstrip for protecting an exposed surface, such as a surface in the interior of an aircraft. The rubstrip is configured to house a light source within its interior. In some embodiments, an exterior of the rubstrip is formed with at least one passageway configured to emit light from the light source. The rubstrip is configured both to protect the surface from damage and to protect the housed light source from damage.
Abstract:
Hydrogen powered air vehicles (100) that in some embodiments can fly with very long endurance (10 or more days) at altitudes over 18288m (60,000 ft) carrying pay loads of up to 907,2kg (2,000 pounds). Embodiments may include features such as large wingspan relative to fuselage (110) and an all composite or partial composite structure for light weight and strength. The aircraft of the invention use one or more internal combustion engines (122) adapted for hydrogen combustion, each engine driving propellers (123). The hydrogen fuel is stored on board in containers (300), located within the fuselage, as a cryogenic liquid, and is vaporized in a heat exchanger (320) before delivery to the internal combustion engine.
Abstract:
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 unobstructed downward-looking view. The aircraft includes an extendable slat at the leading edge of the wing, and a reflexed trailing edge. The aircraft comprises a flying wing extending laterally between two ends and a center point. The wing is swept and has a relatively constant chord. The aircraft also includes a power module configured to provide power via a fuel cell. The fuel cell stores liquid hydrogen as fuel, but uses gaseous hydrogen in the fuel cell. A fuel tank heater is used to control the boil-rate of the fuel in the fuel tank. The fuel cell compresses ambient air for an oxidizer, and operates with the fuel and oxidizer at pressures below one atmosphere. The aircraft of the invention includes a support structure including a plurality of supports, where the supports form a tetrahedron that affixes to the wing.
Abstract:
An aviation fuel is formulated with manganese-containing compounds. The composition may include relatively high amounts of manganese up to about 500 mg Mn/1. A manganese-containing additive may reduce the smoke created during the combustion of the aviation fuel. Additionally, the aviation fuel composition may include manganese to improve octane and include a phosphorus-containing scavenger to reduce manganese oxide engine deposits.
Abstract:
A method of managing evaporated cryogenic fuel in a storage tank of a cryogenic fuel system of an aircraft and an aircraft having at least one turbine engine providing propulsive force for the aircraft and a cryogenic fuel system including a passively cooled cryogenic fuel storage tank located within the aircraft, a pressure vent (501) fluidly coupled to the cryogenic fuel storage tank and exhausting evaporated gas from the cryogenic fuel to define a natural gas vent stream, and a catalytic converter (508) fluidly coupled to the pressure vent.
Abstract:
Embodiments of the present invention provide double deep, single width ovens for use in aircraft galleys. The ovens are particularly beneficial as they do not change current catering process or equipment, leading to their ease of acceptability and use in the airline galley design and development industry. The ovens may be used with two standard 32-meal carriers, such that the carriers are positioned front to back in the oven. Alternatively, 64-meal carriers may be developed that fit into the double deep oven as well.