A cryogenic dewar may include an inner tank and an outer tank. The cryogenic dewar may further include a plurality of trunnion mounts. A first four of the trunnion mounts may be coupled between a front half of the inner tank and a front half of the outer tank. A second four of the trunnion mounts may be coupled between a rear half of the inner tank and a rear half of the outer tank. The trunnion mount may be further strengthen with a plurality of pie-shaped reinforcing pads welded to each other and to an outer surface of the inner tank.

A detachable cryostat includes many novel structures. Two radiation shields are installed in the detachable cryostat. One of the radiation shields is cooled by the second-stage cold chamber utilized to contain a cryogen, and the other one is cooled by the first-stage cold head of the cryocooler. These structures are both used for reducing heat loads from an outside. The resilient supporting device, the resilient circular sleeve, the bellows and the conductive blocks are utilized to achieve excellent thermal contact and complete thermal isolation between the cryocooler and the cryogen. A detachable binary current lead device can be introduced in the detachable cryostat, wherein, the detachable binary current lead includes a superconducting current lead and a copper current lead. When the installation adjustment mechanism is tightly pressed and loosened, it can enable the superconducting current lead to contact and separate from the copper current lead.

A strong unsolved need exists to provide people with breathable gases for inhaling instead of ambient air, when people live in areas, where the ambient air is polluted with toxic gases and particulate matters. The present invention solves this need by disclosing a breathing apparatus, a dispenser of breathable gases, and a distributor of breathable gases, for supplying breathable gases to people, exposed to polluted and contaminated outdoor and indoor ambient air.

Provided is a pressure vessel having an outer layer with an improved gas barrier property, a lightweight liner with an excellent gas barrier property, and a novel method for manufacturing a pressure vessel. The pressure vessel contains a liner and an outer layer of the liner, wherein the outer layer is configured by a composite material that contains a continuous fiber and a polyamide resin impregnated into the continuous fiber; the polyamide resin contains a structural unit derived from diamine and a structural unit derived from dicarboxylic acid; and 50 mol % or more of the structural unit derived from diamine is derived from xylylenediamine.

A hydrostatically compensated compressed air energy storage system may include an accumulator disposed underground, a gas compressor/expander subsystem in fluid communication with the accumulator interior via an air flow path; a compensation liquid reservoir spaced apart from the accumulator and in fluid communication with the layer of compensation liquid within the accumulator via a compensation liquid flow path; and a first construction shaft extending from the surface of the ground to the accumulator and being sized and configured to i) accommodate the passage of a construction apparatus therethrough when the hydrostatically compensated compressed air energy storage system is being constructed, and ii) to provide at least a portion of one of the air flow path and the compensation liquid flow path when the hydrostatically compensated compressed air energy storage system is in use.

A compressed gas energy storage system may include an accumulator for containing a layer of compressed gas atop a layer of liquid. A gas conduit may have an upper end in communication with a gas compressor/expander subsystem and a lower end in communication with accumulator interior for conveying compressed gas into the compressed gas layer of the accumulator when in use. A shaft may have an interior for containing a quantity of a liquid and may be fluidly connectable to a liquid source/sink via a liquid supply conduit. A partition may cover may separate the accumulator interior from the shaft interior. An internal accumulator force may act on the inner surface of the partition and the liquid within the shaft may exert an external counter force on the outer surface of the partition, whereby a net force acting on the partition is less than the accumulator force.

Disclosed is a pneumatic inflation valve assembly, having: a valve housing defining a valve cavity and including an axial proximate end and an axial distal end, the proximate end including an outlet from the valve cavity and the distal end including an inlet into the valve cavity, the proximate end includes a motion hole, the distal end includes a receiving volume; and a poppet is disposed in the valve cavity that includes an axial proximate stem extending through the motion hole, an axial distal stem is disposed in the receiving volume and is moveable within the valve cavity between an opened position and a closed position, when the poppet is at the opened position the distal stem extends further into the receiving volume than at the closed position, and the center body is axially spaced from the proximate end and the distal end of the valve housing.

A compressed gas energy storage system may include an accumulator for containing a layer of compressed gas atop a layer of liquid. A gas conduit may have an upper end in communication with a gas compressor/expander subsystem and a lower end in communication with accumulator interior for conveying compressed gas into the compressed gas layer of the accumulator when in use. A shaft may have an interior for containing a quantity of a liquid and may be fluidly connectable to a liquid source/sink via a liquid supply conduit. A partition may cover may separate the accumulator interior from the shaft interior. An internal accumulator force may act on the inner surface of the partition and the liquid within the shaft may exert an external counter force on the outer surface of the partition, whereby a net force acting on the partition is less than the accumulator force.

A system is described wherein a cryogenic liquid transport fluid is used as in thermal communication with a volatile gas as a second cryogenic liquid. The volatile gas in the liquid state enables transport of additional volatile substances that cannot be transported in the liquid state employing only the cryogenic liquid. The thermal communication between cryogenic liquids is a thermal cascade.

An insulation arrangement configured to cover a vessel containing a liquified gas is provided. Embodiments include an insulation arrangement including an aerogel composition and a vapor barrier, where the insulation arrangement reduces heat transfer between the ambient environment and the liquified gas. Other embodiments include an insulated clamping device configured to connect a vessel to a framework and a connection system including the insulated clamping device, where the vessel includes the aforementioned insulation arrangement.