Abstract:
A cryogenic tank includes a shell having an interior side, an exterior side, and an internal volume that is bounded by the interior side. The shell has a shape that includes at least two elongated lobes that are defined by partial cylinders that intersect each other. The partial cylinders extend lengths along central longitudinal axes that are offset from each other. The lobes include opposite domes that extend at opposite ends of the length of the corresponding partial cylinder. The cryogenic tank includes an internal reinforcement frame having a web of elongate frame members extending within the internal volume. The frame members extend along the interior side of the shell such that lengths of the frame members extend along paths that follow the profile of the interior side of the shell. The internal reinforcement frame is configured to distribute loads exerted on the shell along at least three different directions.
Abstract:
A frac tank adapted for vehicular transport and field storage of a liquid, comprising two parallel, elongated, hollow, intersecting cylinder sections that are capped at the longitudinal ends. Each section has an arcuate wall defining a cross-section of greater than 180°, a major diameter, and a minor diameter at the ends of the arcuate wall, wherein the ends of the arcuate wall of each section are sealingly joined to form the tank wall. The joined ends of the arcuate walls form inwardly directed cusps along the length of the tank with the major diameters spaced apart on either side of the cusps.
Abstract:
A tank for cryogenic liquids, which is intended for installation in motor vehicles and which consists of an outer container and of an inner container suspended in the latter in tension or compression struts. In order to take the contrasting requirements in motor vehicles into account in an optimum way, between the outer container and inner container abutments and supporting faces are additionally provided, which can be spaced apart from one another when the vehicle is at a standstill and can be brought to bear when the vehicle is driving. The abutments inside the outer container Co.-operate with supporting faces on the inner container and can be displaced by means of an actuator.
Abstract:
The present invention provides a method for producing a pressure tank for holding a pressurized fluid, comprising the steps of providing a shaped body; arranging one or more elements of a textile sheet material of reinforcing fibers on the shaped body; impregnating the reinforcing fibers, before or after the arrangement of the element or elements on the shaped body, with a thermosetting or thermoplastic resin; and curing the resin to form a composite fiber material surrounding the shaped body. The invention also provides a pressure tank for holding a pressurized fluid, comprising a hollow body which defines a storage space for the fluid, and a composite fiber material surrounding the hollow body which comprises one or more elements of a textile sheet material. The invention further provides a pressure tank group comprising a plurality of such pressure tanks.
Abstract:
The present invention concerns a pressure container (1) with a jacket comprising partial cylindrical jacket shells (2, 4) that are located parallel next to each other and define a bead (8, 10) in the longitudinal direction. The end faces thereof are closed off by a curved bottom (16, 18), wherein between the partial cylindrical shells (2, 4) a tractive element designed in particular as a flat wall (6; 6a, 6b) is arranged, the upper or lower edge (12, 14) of which extends into or penetrates the upper or lower bead region (8, 10). There is furthermore provided a shell element (42) running in the longitudinal direction and connecting the jacket shells (2, 4) and the tractive element (6), being firmly connected at least in sections to the jacket shells (2, 4) and to the particularly beveled edge (12, 12a; 14, 14a) of the tractive element (6), so that a girder structure is formed in the bead region (8, 10). The invention further relates to a transport container arrangement, particularly a tank container unit (100) having a pressure container (1) according to the invention.
Abstract:
A pressure vessel for holding a pressurized fluid such as compressed natural gas (“CNG”) includes two end cells and zero or more interior cells. The cell geometry ensures that the cells meet one another at tangential circular surfaces, thereby reducing the tendency of adjacent cells to peel apart. A web secured about the cells includes two sheets that are tangent to the cells. Unused volumes between the cells and the web contain wedges of foam or rubber. A valve provides fluid communication between the interior of the pressure vessel and a pressurized fluid line. The filled weight of one pressure vessel does not exceed the filled weight of a conventional gasoline tank that occupies substantially the same space as the pressure vessel. The pressure vessel may be configured with exterior recesses for engaging conventional gasoline tank straps.
Abstract:
A tank for cryogenic liquids, which is intended for installation in motor vehicles and which consists of an outer container and of an inner container suspended in the latter in tension or compression struts. In order to take the contrasting requirements in motor vehicles into account in an optimum way, between the outer container and inner container abutments and supporting faces are additionally provided, which can be spaced apart from one another when the vehicle is at a standstill and can be brought to bear when the vehicle is driving. The abutments inside the outer container Co.-operate with supporting faces on the inner container and can be displaced by means of an actuator.
Abstract:
A pressure vessel for holding a pressurized fluid such as compressed natural gas ("CNG") includes two end cells and zero or more interior cells. The cell geometry ensures that the cells meet one another at tangential circular surfaces, thereby reducing the tendency of adjacent cells to peel apart. A web secured about the cells includes two sheets that are tangent to the cells. Unused volumes between the cells and the web contain wedges of foam or rubber. A valve provides fluid communication between the interior of the pressure vessel and a pressurized fluid line. The filled weight of one pressure vessel does not exceed the filled weight of a conventional gasoline tank that occupies substantially the same space as the pressure vessel. The pressure vessel may be configured with exterior recesses for engaging conventional gasoline tank straps.
Abstract:
A reinforced composite structure (29) is disclosed. The structure is formed by opposed layers of material extending over a core and continuous bundles stitched in a repeating pattern through the opposed layers (30, 32) and the intermediate core (28) to form the reinforced composite structural member (29).
Abstract:
A tank for compressed natural gas utilizes internal tension members. The tank has an upper half and a lower half, each half being formed with at least two cylindrical portions separated by a Y-shaped junction. The sections of each half have engagement members in the interiors. The engagement members include a head and a socket which slide longitudinally together to secure the upper and lower halves against tension due to the gas pressure.