Abstract:
Improved process for evacuating the thermally insulating jacket of a dewar having an inner wall and an outer wall, with the inner space between said walls completely or partially filled with an insulating material, containing also a moisture sorbing material and a getter material, in which said moisture sorbing material is a chemical drying agent.
Abstract:
A high pressure vessel assembly includes a central pivot tank and coaxial or concentrically disposed tanks for liquid or gas storage with or without gaseous phase cooling. The pivot tank comprises a cylindrically shaped wall having torus-shaped ends and is surrounded by an annularly shaped internal tank having internal and external walls with the former being joined to the pivot tank by bands adjacent the tank ends to provide an intermediate chamber. A larger diameter external tank likewise of annular configuration, surrounds the internal tank and is also joined thereto in a manner providing an intermediate chamber. A fitting projecting from the ends of all three tanks at one end of the assembly permits filling or emptying of the respective tanks while a separate discharge pipe projecting from the internal and external tank ends communicates with the two chambers to carry away any fluid leaking from the juxtaposed peripheral walls of the tanks.
Abstract:
A cryogenic fuel tank of a cylindrical design having toroidal surface ends, is suspended in aircraft structure through a central front mount member; and the rear tank is supported by rod elements which extend from a mounting ring about the tank, to mount points rearwardly within the interior of the fuselage. The central front mount member has baffles attached thereto, so as to prevent undue sloshing of the liquid within the tank. The front end of the tank suspension absorbs radial and axial loads, but no bending moments; and the aft linkage suspension arrangement takes primarily radical and torsional loads. Also the aft suspension provides for unrestrained axial and radial contraction and expansion of the outer shell of the tank.
Abstract:
A hydrogen fuelled aircraft includes a fuselage, a wing, at least one hydrogen fuelled gas turbine engine, at least one hydrogen fuel tank configured to store liquid or supercritical hydrogen and a hydrogen fuel line configured to delivery hydrogen fuel from the fuel tank to the engine. The gas turbine engine and the hydrogen fuel tank are each installed externally on the wing, and the hydrogen fuel line does not pass through the fuselage.
Abstract:
The invention relates to a storage bag for temporarily accommodating the liquefied petroleum gas, to a liquefied petroleum gas storage, to a fuel supply system, and to an assembly for buffering a liquefied petroleum gas (LPG) in a liquefied petroleum gas storage. The storage bag is arranged for temporarily accommodating the liquefied petroleum gas, having a fuel collection volume and a supply unit for allowing liquefied petroleum gas from the storage to enter into the fuel collection volume. The assembly can comprise a fuel pump having a pump housing and an inlet connected to the fuel collection volume. According to the invention a fuel pump and storage bag connection is arranged to allow feeding of the assembly the one after the other through an opening of the liquefied petroleum gas storage. According to the invention the storage bag comprises a jet pump.
Abstract:
This invention is directed to pressure vessels in which the strength necessary to withstand the pressure exerted by a contained fluid under intended operating pressures is provided by a dry filamentous over-wrap.
Abstract:
The present invention relates to a fire resistant pressure vessel in which the inclusion of fire resistance does add appreciably to the overall weight of the vessel over a similar vessel that is not fire resistant.