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 compressed fluid energy storage system includes a submersible fluid containment subsystem charged with a compressed working fluid and submerged and ballasted in a body of water, with the fluid containment subsystem having a substantially flat portion closing a domed portion. The system also includes a compressor and an expander disposed to compress and expand the working fluid. The fluid containment subsystem is at least in part flexible, and includes an upper portion for storing compressed energy fluid and a lower portion for ballast material. The lower portion may be tapered proximate the flat portion to prevent it from being collapsed by ballast materials. The region between the fluid and the ballast has exchange ports to communicate water between the inside and outside of the containment subsystem. In other embodiments, an open-bottomed fluid containment system is held in position underneath a ballast system by a tensegrity structure.

A transport container for helium, having an inner container for receiving helium, a thermal shield actively coolable with the aid of a cryogenic liquid and in which the inner container is accommodated, an outer container in which the thermal shield and inner container are accommodated, and a carrying ring provided on the thermal shield. The inner container is suspended from the carrying ring with the aid of first suspension rods, wherein the carrying ring is suspended from the outer container with the aid of second suspension rods, wherein at least one of the first suspension rods has a first spring device and at least one of the second suspension devices has a second spring device in order to ensure a spring pretension of the first suspension rods and the second suspension rods for different heat expansions of the inner container and the thermal shield.

A tank trailer has a container formed from a tubular body and one or more polar bosses coupled to distal ends of the tubular body. The trailer includes a pumping system that has one or more pipes fluidly coupled to the interior of the container via an interface at one of the polar bosses. The tank trailer may have a base support and one or more circumferential support members coupling the base support to the composite container, or the support functionality of the base may be instead accomplished by the container. The one or more polar bosses may include an inner circular surface and an outer circular surface, wherein the outer circular surface has one or more flat portions that complement and engage one or more concave features of the substantially tubular body.

An inner and outer tank connection device for a cryogenic storage tank includes a suspension belt; a first connection assembly for connecting the outer tank, wherein the first connection assembly includes a first connection seat and a first connection member, and the first connection seat is configured for connecting the outer tank and the first connection seat is provided with a first limiting seat, the first connection member is rotatably connected to one end of the suspension belt, and the first connection member is provided with a first limiting portion, and the first limiting portion fits with the first limiting seat to limit the first connection member from twisting on the first connection seat with the suspension belt as a rotation axis; and a second connection assembly for connecting the inner tank, wherein the second connection assembly is rotatably connected to another end of the suspension belt.

Disclosed herein is an energy efficient vertical cryogenic tank, which comprises a tank body with a vacuum insulation interlayer, wherein the tank body comprises a transmission means including an air return pipe and a liquid outlet pipe, and positioning means including supporting legs provided at the bottom of the tank body, and a built-in saturation adjustment mechanism formed by a heat exchanger connected to an let of the air return pipe and a return air dispersing device. By using a saturation adjustment mechanism at the inlet of the air return pipe, the cryogenic storage tank can not only fully leverage the gasification gas produced at the pump, but also achieve the saturation function of the LNG in the tank, with such benefits as reduced energy loss, simplified tank interface settings, improved efficiency of saturation adjustment, and avoided pump cavitation.

A tank system includes a vacuum tank having a vacuum tank skin, and a pressure tank mounted within the vacuum tank having one or more pressure tank skin segments having a total circumference that is less than that of a complete circle, resulting in one or more longitudinal gaps respectively between the one or more pressure tank skin segments. The tank system includes one or more gap control mechanisms configured to control a width of the one or more longitudinal gaps in a manner facilitating movement of the one or more pressure tank skin segments between at least the following positions: a retracted position in which there is a radial gap between each pressure tank skin segment and the vacuum tank skin, and a fully extended position in which at least a portion of each pressure tank skin segments is in contact with the vacuum tank skin.

A cryogenic liquid storage apparatus includes an inner container configured to store a cryogenic liquid, an inner holder disposed at the inner container, an outer container that surrounds the inner container, an outer holder disposed at the outer container, and a support wire that is a single body defining a closed-loop shape passing through the outer holder and the inner holder. The support wire is configured to support the inner container with respect to the outer container.

The invention relates to a double-walled storage tank for liquefied gas, in particular cryogenic fluid, having an inner wall and an outer wall which is arranged around the inner wall with a thermally insulated gap, wherein the inner wall is suspended in the outer wall at at least one of its ends via a tensioned-cable(s) suspension system between the inner wall and the outer wall, the suspension system having the one same cable passing back and forth more than once between the inner wall and the outer wall via respective guide passages, the cable forming a plurality of connections between the inner wall and the outer wall in different directions, one end of the cable being secured to one of the walls and configured to place the cable under tension.