A rigid structure propellant management device (PMD) liquid storage tank includes an outer shell and internal structures inside the outer shell that include a plurality of vertical columns each made up of a stack of individual storage cells. Each of the storage cells has solid vertical sidewalls and top and bottom capillary windows that allow vertical liquid transfer between adjacent cells in a vertical column. The top and bottom capillary windows in each of the storage cells have permeabilities that result in a selected direction of liquid flow in each column. A piping and valve system may be connected to the top capillary window of a top storage cell and to the bottom capillary window of a bottom storage cell of each vertical column, configured to allow controlled liquid transfer between adjacent vertical columns so that locations of empty cells in the tank as liquid is drawn from the tank achieves a selected column by column drainage sequence and controls a center of mass of the tank.

A fuel transfer station may provide for the refilling of fuel canisters providing fuel to combustion powered equipment. The fuel transfer station may include a base, a frame coupled to the base, a first connection port and a second connection port provided in the base, and fluid flow lines connecting the first connection port and the second connection port. A supply tank may be supported by the frame and detachably connected to the first connection port. A fuel canister to be refilled may be detachably connected to the second connection port. Fuel contained in the supply tank may be selectively supplied to the fuel canister through the fluid flow lines in response to a pressure gradient drawing the fuel into the fuel canister.

A superconducting current limiter with a bifilar coil winding made of a T.sub.c superconductor (HTS) conductor in a cryostat that includes a solid filler material, where the solid filling material is particularly formed from a granulate, hollow bodies or an open-pored structure and is surrounded by cryogen.

A tank has a generally prismatic shape, and is capable of containing a pressurized gas. The tank comprises a composite shell, which has fibrous reinforcements and a matrix extending continuously over the six faces of the prism and delimits a sealed internal cavity comprising a plurality of open cells. The tank comprises continuous fibrous reinforcements extending into and bonded to the composite shell and further extending through the internal cavity between two opposite faces of the tank. The tank is advantageously integrated into the floor of a vehicle, in particular to the structure of an aircraft.

A fuel gas storage tank is disclosed that can store fuel gas, such as natural gas or hydrogen, in a solid state. The fuel gas storage tank includes a shell having a tank interior, a fuel gas storage material housed within the tank interior, one or more fuel gas injecting tubes, and one or more fuel gas collecting tubes. Each of the fuel gas injecting tube(s) and the fuel gas collecting tube(s) is permeable to fuel gas and is disposed in the tank interior and surrounded by the fuel gas storage material. And, within the tank interior, the one or more fuel gas injecting tubes and the one or more fuel gas collecting tubes are not directly connected to one another.

A fuel transfer station may provide for the refilling of fuel canisters providing fuel to combustion powered equipment. The fuel transfer station may include a base, a frame coupled to the base, a first connection port and a second connection port provided in the base, and fluid flow lines connecting the first connection port and the second connection port. A supply tank may be supported by the frame and detachably connected to the first connection port. A fuel canister to be refilled may be detachably connected to the second connection port. Fuel contained in the supply tank may be selectively supplied to the fuel canister through the fluid flow lines in response to a pressure gradient drawing the fuel into the fuel canister.

A fuel transfer station may provide for the refilling of fuel canisters providing fuel to combustion powered equipment. The fuel transfer station may include a base, a frame coupled to the base, a first connection port and a second connection port provided in the base, and fluid flow lines connecting the first connection port and the second connection port. A supply tank may be supported by the frame and detachably connected to the first connection port. A fuel canister to be refilled may be detachably connected to the second connection port. Fuel contained in the supply tank may be selectively supplied to the fuel canister through the fluid flow lines in response to a pressure gradient drawing the fuel into the fuel canister.

A rigid structure propellant management device (PMD) liquid storage tank includes an outer shell and internal structures inside the outer shell that include a plurality of vertical columns each made up of a stack of individual storage cells. Each of the storage cells has solid vertical sidewalls and top and bottom capillary windows that allow vertical liquid transfer between adjacent cells in a vertical column. The top and bottom capillary windows in each of the storage cells have permeabilities that result in a selected direction of liquid flow in each column. A piping and valve system may be connected to the top capillary window of a top storage cell and to the bottom capillary window of a bottom storage cell of each vertical column, configured to allow controlled liquid transfer between adjacent vertical columns so that locations of empty cells in the tank as liquid is drawn from the tank achieves a selected column by column drainage sequence and controls a center of mass of the tank.

Disclosed is a non-metallic anti-explosion ball, comprising an equatorial ring (1), longitudinal sheets (2), a south-polar ring (41) and a north-polar ring (31). The equatorial ring (1) and the longitudinal sheets (2) are arranged perpendicularly. The south-polar ring (41) and the north-polar ring (31) are located on two sides of the equatorial ring (1) respectively. The south-polar ring (41) is located at one end of the longitudinal sheets (2), and the north-polar ring (31) is located at the other end of the longitudinal sheets (2). The equatorial ring (1), the south-polar ring (41) and the north-polar ring (31) are coaxial. A projection of the south-polar ring (41) is located inside a projection of the equatorial ring (1) in an axial direction of the equatorial ring (1), and a projection of the north-polar ring (31) is positioned inside the projection of the south-polar ring (41). Projections of the longitudinal sheets (2) extend from the projection of the north-polar ring (31) to the equatorial ring (1). A manufacturing process for the non-metallic anti-explosion ball is simple, and the production efficiency is high.

The present invention provides a lightweight high pressure vessels that are made from a liner or a liner housing that is overwrapped with a composite material. Unlike conventional high pressure vessels, the lightweight high pressure vessel of the invention includes a liner that comprises a plurality of liner sections without using welding or crimping. In particular, the lightweight high pressure vessels of the invention include a plurality of elements that are combined to form a liner housing and a composite overwrap that provides structural and mechanical strength to maintain integrity of the high pressure vessel. In one particular embodiment, the high pressure vessel of the invention is a diaphragm accumulator.