Abstract:
A pressure vessel (100) includes a liner (104), a composite shell (106) covering the liner (104), and at least one boss assembly (110) having a metal boss (200). The metal boss (200) is positioned at respective openings (202, 204) though the liner (104) and the composite shell (106). A plastic layer (210) is formed between the liner (104) and the metal boss (200). The plastic layer (210) adheres to both the metal boss (200) and the liner (104) to form a seal at the interface between the metal boss (200) and liner (104). The plastic layer (210) further increases a torque strength of the metal boss (200).
Abstract:
The present disclosure provides pressurized-gas storage assemblies and methods of fabricating such assemblies. A pressurized gas storage assembly of the disclosure may have a liner with an end portion with a planar surface with an access opening on the planar surface, which has a raised circular ring extending from the planar surface and surrounding the access opening. The assembly may also include a polar boss having a bottom flat surface with a circular groove therein, which is adapted to receive the raised circular ring of the liner when the polar boss and liner are screwed together. An outer shell may be provided around the entirety of the liner and with an aperture-defining edge that receives the polar boss.
Abstract:
A pressurised fluid container having a shut off valve (6) within a valve body. The valve body contains at least one high pressure seal (9, 10) to seal the region around the valve. The valve body is configured such that any leakage past the or each high pressure seal enters an internal gas path which routes any fluid leakage past the or each high pressure seal to one or more discrete ports (26) in the valve body.
Abstract:
The invention relates to a fuel tank arrangement (10) comprising a tank container (12) for liquefied gas in a marine vessel (16), which is arranged to endure internal pressure above the atmospheric pressure and which is provided with heat insulation on outer surface of the container, and the tank when containing liquefied gas in use includes a liquefied gas space and an ullage space, and in which arrangement a communication junction for liquefied gas is arranged to communicate with the inner space of the container. The communication junction (40,41) is arranged to serve as a coupling means for gas lines (27,28) of the arrangement, and that the communication junction is connected to the tank container.
Abstract:
The present invention relates to a device for the storage and delivery of liquid and/or gaseous media under pressure, having a media container (1) of a plastics material, preferably of polyamide, receiving the medium, at least one valve connection element (2), connected to the media container (1), and at least one valve element (3, 3a, 3b), connectable to the valve connection element (2), wherein the media container (1) has a collar (4), which is moulded on in one piece and protrudes from the media container (1) and has a collar outer wall (5) and a collar inner wall (6). A restoring element (11, 11a, 11b) is arranged in such a way that, during the fitting of the valve element (3, 3a), the collar (4) and the restoring element (11, 11a, 11b) are jointly pressed between a partial region (9a) of the wall (9) and the pressing portion (10), wherein the restoring element (11, 11a, 11b) is formed from a crosslinked plastics material, preferably from crosslinked polyethylene, and wherein the pressing portion (10), the collar (4) and the restoring element (11, 11a, 11b) are made to match one another and formed in such a way that the joint pressing of the collar (4) and the restoring element (11, 11a, 11b) has the effect that an elastic deformation (X) of the restoring element (11, 11a, 11b) that is greater than the maximum creep deformation (Y) of the collar (4) over the service life of the device can be set, and so the creep deformation (Y) of the collar (4) can be compensated by way of the restoring element (11, 11a, 11b). The invention also relates to a fuel-energy conversion device, a motor vehicle and a method for fitting a device for the storage and delivery of liquid and/or gaseous media under pressure.
Abstract:
The invention relates to a liquefied gas outlet system (100) for liquefied gas tank to discharge liquefied gas from below its surface level in the tank (10), the outlet system comprising a first conduit section (102) attached by its outer periphery at a location of a opening (104) arranged to a wall section (24) of the tank serving as an liquefied gas outlet, at least one second conduit section arranged in flow connection with the first conduit section (102), via which at least one second conduit section (106,106') the first conduit section may be arranged in flow communication with the tank inner volume (30). The system further comprises a safety vessel (110) arranged to circumscribe the opening (104) in a secured manner inside the tank, and that the safety vessel is also secured to the at least one second conduit (106, 106'), and that the second conduit section is provided with a closing unit (108,108'). Invention relates also to a tank for storing liquefied gas having a liquefied gas outlet system, as well as to a method of building or rebuilding a liquefied gas tank.
Abstract:
Die vorliegende Erfindung betrifft einen Druckbehälter (10) für Gase, insbesondere Helium, der dadurch gekennzeichnet ist, dass dieser eine Außenhülle aufweist, die eine Druckbeständigkeit bis zu einem Gasinnendruck von wenigstens 10 bar aufweist, dass die Außenhülle des Druckbehälters wenigstens eine hochdiffusionsbeständige Barriereschicht aufweist mit einer Leckrate für Helium bei einem Gasinnendruck von 10 bar und Raumtemperatur von vorzugsweise weniger als 10 -2 mbar.l/s und dass der Behälter ein Aufnahmevolumen für unter Atmosphärendruck stehendes Gas von wenigstens 25 Liter hat. Die Außenhülle des Druckbehälters kann wenigstens eine Barriereschicht aus einer flexiblen Polymerfolie mit Hochbarrierefunktion oder Ultrabarrierefunktion umfassen oder wenigstens eine hochgasdichte flexible Barriereschicht aus EVOH. Der Behälter kann beutelartig sein oder insbesondere bei höheren Drücken in sich steif. Für die Herstellung der Schicht, die die hohe Druckfestigkeit gewährleistet, kann man beispielsweise hochfeste Kunststoffe aus Fasergranulaten verwenden. Zur Aussteifung und Stabilisierung des Druckbehälters können Nähte (12) beispielsweise in den seitlichen Randbereichen vorgesehen sein. Für die Entnahme des Gases kann der erfindungsgemäße Druckbehälter 10 einen Kugelhahn 11 als Verschlussorgan aufweisen.
Abstract:
The present invention relates to a device for connecting various devices, in particular a pressure reducer, suitable for mounting on cylinders provided with connection and closing means of various shapes and sizes, wherein: said connection means comprise an external thread (5b, 15b, 25b) and an annular flat surface (5a, 15a, 25a) coaxial with said external thread (5b, 15b, 25b); said closing means comprise a needle valve (5c, 15c, 25c), also coaxial with said external thread (5b, 15b, 25b); said pressure reducer being contained in a housing (2) provided with an internal thread (6) and an annular flat surface (6a), coaxial with said internal thread (6), the connection with said cylinder (5, 15, 25 ) taking place by screwing and said needle valve (5c, 15c, 25c) being opened by the pressure exerted by a pin (11), present on said housing (2), characterized in that after clamping has taken place, said annular flat surface (6a) of said housing (2) is in contact with said annular flat surface (5a, 15a, 25a) of said cylinder (5, 15, 25), the seal being obtained by a gasket (12) that fits into a seat (13) of said housing (2), said gasket (12) being deformed due to said clamping and exerting through spring reaction on the bottom of said seat (13) and on said annular flat surface (5a, 15a, 25a) of said cylinder (5, 15, 25), the force required to obtain, between said cylinder (5, 15, 25) and the housing (2) of the device (1) pressure seal of the gas drawn up.
Abstract:
This invention relates to a liner for a gas storage tank containing a polymer composition comprising: i. a polyamide A, and ii. a nucleating agent in an amount of at least 0.001 weight percent with respect to the total amount of the polymer composition, and iii. an impact modifier in an amount of at least 1 weight percent with respect to the total amount of the polymer composition. The invention also relates to a gas storage tank comprising a structural fiber composite comprising continuous carbon or glass fibers, as well as a method for preparing a liner by blow molding.