A storage tank includes a tank wall, a pressure regulator, a low-pressure coupling, and a fill coupling. The tank wall of the storage tank is configured to contain a stored fluid at an internal pressure within the tank wall, the tank wall including an outer layer, an inner layer, and a regulator mount. The pressure regulator of the storage tank is connected to the regulator mount and is configured to receive a flow rate of the stored fluid and reduce the stored fluid from the internal pressure to an output pressure. The flow rate of the stored fluid is provided, via the low pressure coupling and at the output pressure to an external system. The fill coupling extends through the tank wall and receives the stored fluid from a fluid source to be stored within the storage tank.

A method of manufacturing a pressure vessel (10) comprising the steps of dividing a wall (104) of a section (100) of the pressure vessel (10) into a first segment (120) and a second segment (150), separating the first segment (120) from the second segment (150), fitting apparatus (400) onto the first segment (120), and then re-attaching the first segment (120) and the second segment (150).

A method and apparatus for applying a cladding layer to a surface of a component uses a cladding tool having a maximum reach less than the size of the surface. Geometry of the surface is segmented into a plurality of tessellated segments, each of which has a peripheral extent determined by a maximum reach of the cladding tool. A nominal tool subpath for each tessellated segment is generated, and then combined to generate a nominal tool path for depositing the cladding layer on the surface. The surface is clad using the nominal toolpath, including a process of adjusting the nominal tool path to an adjusted tool path that accounts for dimensions of the bead to be deposited by the tool to match an edge of the bead to be deposited with an edge of a previously deposited bead.

A system for powering a vehicle is provided. The system can include an engine or power generation system to be powered by a fuel and a housing. The housing can be configured to couple to one or more frame rails of the vehicle, receive and protect a cylinder configured to store the fuel to be used by the engine or power generation system. The housing can have one or more access panels allowing access to an interior of the housing. The cylinder can include a first end portion, a second end portion, a central body forming an enclosed cavity for storing pressurized gas, a reinforcement structure disposed over the central body, and a metal foil interposed between the reinforcement structure and central body. The metal foil can be configured to reduce permeation of contents of the cylinder.

A heat insulation structure for corner parts of a liquefied natural gas (LNG) storage tank includes a secondary insulation wall arranged on an inner wall of a hull, a secondary sealing wall disposed on the secondary insulation wall, a primary insulation wall arranged on the secondary sealing wall, and a primary sealing wall disposed on the primary insulation wall. The heat insulation structure includes a corner assembly finishing an edge of the primary sealing wall at a corner part of the storage tank to complete sealing of the storage tank. The corner assembly includes an endcap sheet finishing each of four corners of the primary sealing wall provided to each surface of the storage tank to seal the four corners. The endcap sheet includes an endcap corrugation and an elongated corrugation extending in a direction perpendicular to a direction in which the endcap corrugation extends.

A method for forming a reservoir made of a composite material includes a tubular element, two end fittings, each inserted into one end of the tubular element, and a circumferential layer that envelops the tubular element and the end fittings. The circumferential layer is made of resin-impregnated wound fibers. At least one segment of each end fitting has an outwardly tapering shape and the wall has a taper at each end, and thus at each end the wall is pressed against the segment surface having a tapering shape. The tubular element includes a plastic tube surrounded by a longitudinal layer essentially made of parallel fibers in a resin matrix, the parallel fibers being oriented along the longitudinal axis of the plastic tube. The circumferential layer is essentially made of fibers wound around the circumference of the tubular element and end fittings and parallel to each other.

A fluid tank includes polymeric liner comprising an upper wall and a lower wall. The upper wall and the lower wall define a cavity therebetween. A weld joint joins the upper and lower walls together. A method for assembling a fluid tank includes overlapping surfaces of an upper wall and a lower wall to form a liner defining a cavity. The method includes joining the surface of the upper wall and the surface of the lower wall together by welding to form a weld joint between the upper wall and the lower wall. The method can include cooling the weld joint to control warpage of the liner at the weld joint.

An insulating wall fixing device for liquefied natural gas storage tanks includes: a base socket; and a securing stud inserted into the base socket. The base socket is formed on an upper surface thereof with an insertion hole through which the securing stud is inserted into the base socket and has an interior space in which one end of the securing stud is settled. The securing stud includes an insertion portion inserted into the interior space of the base socket through the insertion hole and a fastening portion protruding from the insertion portion outwardly of the base socket. The insertion portion includes a spherical shape and multiple leg members divided by a groove formed from one end of the insertion portion to the other end of the insertion portion. The multiple leg members of the insertion portion are retracted toward the groove.

In one aspect the present disclosure relates to a method of manufacturing a cryogenic pressure vessel. The method may include providing a metal lined, composite wrapped vessel which has a boss. The method may further include securing an inlet to the boss, and then encapsulating the metal lined, composite wrapped vessel within a metallic layer in a vacuum controlled environment to form an encapsulated inner tank subassembly. The method may further include securing at least one support to an exterior of the encapsulated inner tank subassembly, and within the controlled vacuum environment, applying a metal coating over the encapsulated inner tank subassembly and the at least one support to form a metal coated, encapsulated inner tank subassembly. The method may further include, within the controlled vacuum environment, encapsulating the metal coated, encapsulated inner tank subassembly within a metallic vacuum jacket, which forms the cryogenic pressure vessel.

A large volume natural gas storage tank comprises rigid tubular walls having closed tubular cross-sections that are interconnected at opposing ends with two other rigid tubular walls such that interiors of the rigid tubular walls define an interior fluid storage chamber. The storage tank also includes bulkheads positioned in the interior fluid storage chamber across intermediate segments of the rigid tubular walls and closure plates connected between exterior surfaces of successive interconnected rigid tubular walls to define sides of the storage tank. Interior surfaces of the closure plates and exterior surfaces of the rigid tubular walls define an auxiliary fluid storage chamber. The storage tank also includes exterior support structures extending through the closure plates and between the exterior surfaces of the rigid tubular walls on some of the sides of the storage tank to reinforce the storage tank against dynamic loading from fluid in the interior fluid storage chamber.