摘要:
The invention relates to a pressure vessel (2) for compressed gas having a wall (4) comprising a first and a second vessel half (6, 8) of fibre-reinforced plastic, each having a portion of substantially rectangular cross-section, which merges into an end face portion (14) closing the same and, at an open end of the first vessel half (6), is configured with a first connecting portion (16), which, by a first connecting element (10) which binds together the vessel halves, is joined together with a second connecting portion (18) configured at an open end of the second vessel half (8). The connecting element has third and fourth connecting portions (20, 22), configured and arranged complementarity to the first and the second connecting portion (16, 18) of the respective vessel half (6, 8). Hence the connecting portions (16, 18, 20, 22) are, on the one hand, positively joined together by interaction in dependence on the pressure action from the compressed gas and, on the other hand, non-positively joined together in dependence on a binding means.
摘要:
A flexible or rigid composite material is formed by spirally winding a composite material tape (510) around a composite material core (506) using a spiral winding apparatus (508). Using a flexible composite material core (506) allows the composite material to conform to any shape. Dual plane, dual axis composite material geometry is used in order to strengthen the composite material structure.
摘要:
A cellular reservoir flexible pressure vessel (10) is formed as a series of closely packed tubes (15) fitted into a pair of opposing end caps (45, 50). The end caps have individual receptacles sized and shaped to receive tube ends that are secured with adhesive or radio frequency welding. At least one end cap has a passageway (85) for connection of the vessel. The flexible pressure vessel has a pressure relief device comprising a reduction in thickness of one endcap at a predetermined location.
摘要:
A pressure container (1), wherein a fiber-reinforced resin layer (4) formed of fiber-reinforced resins (3), i.e., reinforced fibers impregnated with resin is formed on the surface of a container body (2), an internal pressure is applied to the container body after the fiber-reinforced resin layer (4) is hardened so that a distortion on the surface of the container in the circumferential direction is 0.7% to 0.9% to apply a pre-stress to the container body (2) and the fiber-reinforced resin layer (4) so as to elastically deform (self-restraining treatment) the container body (2), and high-pressure gas is stored in the container at such a filling pressure that a rupture pressure is 2.2 to 2.8 times the filling pressure, whereby since excellent fatigue characteristics and excellent bursting characteristics can be provided to the pressure container and the weight thereof can be reduced, the pressure container (1) can be suitably used for a storage container for high-pressure gas.
摘要:
A process of making a composite vessel with superior mechanical and aesthetic characteristics includes the steps of: A) preforming a composite thermoplastic shell (41a) (e.g., by winding a commingled roving of fiberglass and a thermoplastic material onto a thermoplastic liner) having an opening for access to the interior; B) placing the shell (which may optionally be preheated) into a mold (40) (which itself may optionally be preheated); C) introducing an inflatable bag (42) containing a heater (48) into the shell through the opening; D) heating the inflatable bag to a temperature which is sufficient to render the shell fluid while pressurizing the interior of the inflatable bag: E) continuing step D) until the shell forms against the interior walls of the mold; F) allowing the formed composite vessel to cool; G) removing the inflatable bag; and H) removing the formed composite vessel from the mold. Prior to step C), an insert (43) having an opening may be juxtaposed in alignment with the opening in the shell such that, during step C), the inflatable bag is inserted through the opening in the insert. If desired for the intended purpose of the composite vessel, a portion of the exterior surface of the insert may be threaded such that threads are formed in the opening of the shell whereby the insert can be unscrewed leaving a threaded port into the vessel.
摘要:
A process for fabricating a composite vessel includes: A) preforming a composite shell (63) for the vessel (by, for example, winding fiberglass and a thermoplastic material onto a thermoplastic mandrel), the shell having at least one opening for access to the interior; B) introducing an inflatable liner (66) fabricated from a thermoplastic film (67) into the composite shell through the opening; C) surrounding the composite shell with an outer thermoplastic film; D) in a mold (60) (which may optionally itself be heated), heating the thermoplastic film liner, the composite shell and the outer thermoplastic film while applying at least one force (e.g., by evacuating the mold, pressurizing the interior of the thermoplastic film liner or both) which tends to urge the thermoplastic film liner, the composite shell and the outer thermoplastic film outwardly; E) continuing step D) until the thermoplastic film liner, the composite shell and the outer thermoplastic film consolidate and the resulting composite structure becomes fluid and flows to conform to the interior surface of the mold, thereby forming the composite vessel; F) allowing the formed composite vessel to cool; and G) removing the formed composite vessel from the mold. The resulting composite vessel exhibits superior mechanical and aesthetic properties.
摘要:
A process for fabricating a composite vessel includes the steps of: A) preforming (e.g., by winding fiber and at least one thermoplastic substance onto a thermoplastic liner) a thermoplastic shell which has at least one opening for access to the interior; B) extruding a circular cross section of a fluid parison of thermoplastic material (which preferably is chosen to have a melting point lower than that of the thermoplatic shell) into the interior of the thermoplastic shell through the opening; C) in a mold, applying at least one force (such as gas under pressure) which tends to urge the fluid parison toward the interior walls of the thermoplastic shell (which may be preheated prior to introduction into the mold) such that the fluid parison imparts heat to the thermoplastic shell; D) continuing step C) until the thermoplastic shell and the fluid parison consolidate to form a composite vessel; E) cooling the vessel until it is solidified; and F) removing the vessel from the mold. For some composite vessels, prior to step C), an insert may be introduced into the interior of the parison and positioned in alignment with the opening in the thermoplastic shell such that the insert is rendered integral with the composite vessel during step D). Suitable thermoplastic materials include polyethylene, polypropylene, polybutylene terephthalate and polyethylene terephthalate. The resulting composite vessel exhibits superior mechanical and aesthetic properties.
摘要:
A tank for storing a pressurized gas including walls of a layered material (15) and continuous unidirectional fibrous bundles of fibers (16) woven through the walls of layered material (15). The continuous unidirectional fibrous bundles (16) have first ends (17) that extend over a first wall of material (15), pass through the first wall of material (15), extend through the interior of the tank (11), pass through another wall of the material (15) and have second ends (17) that extend over the other wall of the material (15). Other bundles of fibers (18, 20) can be woven between different walls of the tank (11) in a similar pattern to produce complex three dimensional shapes.
摘要:
An invention for securing a boss (40) to a thermoplastic liner (12) of a pressure vessel (10) is disclosed. A preferred method of forming the vessel (10) includes inserting a thermoplastic projection (32) of the liner (12) into a mounting aperture (52) located in the boss (40). The projection (32), which is rigidly attached to the liner (12), mechanically prevents rotation of the boss (40) about a pressure chamber orifice (18) relative to the liner (12). The method further includes melting and compressing the thermoplastic projection (32) to conform it to a locking chamber (54) in the mounting aperture (52). A composite case is then constructed over the thermoplastic projection (32), the liner (12), and the boss (40), using the liner (12) as a mandrel. The thermoplastic liner (12) and projection (32) are integrally formed by blow-molding thermoplastic material into a die (64) without any substantial use of injection-molding. A vessel constructed according to the method is also disclosed.
摘要:
A disk drive (10) having dimensions of 5.15 inches long, 4.00 inches wide, and 0.805 inch high is provided. The disk drive (10) includes a cover (14) engaging a base (12) to form therebetween a controlled environment isolated from ambient atmosphere conditions. A storage medium, comprising a single magnetic plated disk (22) having a central point (21) to a plurality of concentric tracks, is rotatably mounted on said base (12) within the controlled environment. A means (20) for rotating the storage means about an axis passing through its center point, preferably comprising a spindle motor (20), is also mounted on said base (12). Transducers (60), one per disk surface, for reading and writing information to the disk (22), are mounted on an actuator (50) which positions the transducers (60) over selected, individual, concentric tracks on the disk (22). A printed circuit board (PCB) (15) provides control signals to the spindle motor (20), transducers (60), and the actuator (50) to selectively access the stored data.