Abstract:
A cryogenic storage tank having an insulated inner vessel disposed within an outer vessel. A common-access tube or conduit is used to route the various fluid flow lines into the interior of the inner vessel. The use of a common-access tube reduces the number of obstructions that the insulation must accommodate and facilitates the production of the storage tank.
Abstract:
A container for gas storage tanks in a vehicle is disclosed as part of a fuel storage system. The container is dimensioned to include one or more storage tanks along with a flow control device, such as a pressure regulator or automatic valve. The container does not form a fluid-tight containment around the storage tank and includes one or more ventilation openings to allow a gas within the container to be vented therefrom. There is also one or more drain openings in the container to allow liquid within the container to be drained therefrom.
Abstract:
Embodiments of vessels include personnel access provisions having welded or otherwise permanent connections that substantially reduce the potential for leakage into or out of the vessels by way of the personnel access provisions.
Abstract:
A storage tank, in particular a storage tank for cryogenic media, preferably for liquid hydrogen, including at least one condensation pipe, which is used for delivering a gaseous cryogenic medium, is disclosed. In addition, a method for filling a storage tank with a gaseous cryogenic medium is disclosed. The condensation pipe is equipped with at least one heat exchanger via which the delivered cryogenic medium is cooled by exchanging heat with the stored cryogenic medium.
Abstract:
A cryogenic fluid storage tank having an inlet conduit, an outlet conduit, and a thermal shield in thermal contact with the inner vessel is disclosed, wherein the thermal shield is adapted to militate against heat transfer from the atmosphere to a cryogenic fluid by the inlet conduit and the outlet conduit.
Abstract:
A method for supplying hydrogen gas, comprising: loading liquefied hydrogen produced at a plant on a liquefied hydrogen delivery vehicle, and transporting the liquefied hydrogen to a user's site by the liquefied hydrogen delivery vehicle; and pressuring and gasifying the transported liquefied hydrogen on the liquefied hydrogen delivery vehicle after arrival at the user's site to produce hydrogen gas, and then filling a storage vessel at the user's site with the hydrogen gas.
Abstract:
A storage tank defines a cryogen space for storing a cryogenic liquid. The storage tank comprises a combined fill and vent assembly, which comprises a conduit having a first end with an opening disposed within an upper part of the cryogen space, and a second end outside of the cryogen space that is connected to a receptacle, to which a re-filling nozzle can be attached. A check valve disposed in the conduit allows flow only in the direction of filling the cryogen space with cryogenic liquid from the receptacle. A by-pass line is provided around the check valve with a valve disposed in the by-pass line that is operable to open or close to control flow through the by-pass line. The method comprises attaching a re-filling nozzle to the receptacle and opening the by-pass valve to vent vapor from the cryogen space to reduce vapor pressure therein and to cool the conduit, receptacle, re-filling nozzle, and fill line. After venting the storage tank, the by-pass valve is closed, and the storage tank can be re-filled through the receptacle and conduit.
Abstract:
A gaseous fuel system for an automotive vehicle includes a gaseous fuel storage tank and an associated pressure sensor for monitoring pressurized gas contained within the storage tank. A parameter-driven routine monitors the integrity of the tank by tracking filing cycles marked by the increase of the tank pressure from a first threshold to a second threshold. Mitigation actions may be taken in the event that the filling cycles exceed a predetermined number, or in the event that other system integrity monitoring indicates that mitigation is in order.
Abstract:
A gas line (120) for supplying hydrogen gas and a harness (110) for supplying power to an electromagnetic valve are connected to an electromagnetic valve mechanism (200). The length of the harness (110) from a connecting member (111) to a fastener (160) is denoted by the letter “n” and the length of the gas line (120) from a connecting member (121) to a fastener (170) is denoted by the letter “m” (n
Abstract:
A fuel cylinder for use in fueling vapor-powered machines and devices is claimed. The fuel cylinder contains a fuel vapor withdrawal pipe that bends upward towards the top edge of the cylinder when the cylinder is in its position of use, for example, the horizontal position if the tank is used horizontally. A liquid splash guard surrounds the inlet of the fuel vapor withdrawal pipe to protect the inlet from splashing of liquid propane in the cylinder. A brace connects to the fuel vapor withdrawal pipe to stabilize the fuel pipe during high vibration use. In one embodiment, the splash guard and brace are welded to the internal surface of a joggle in the rim of the upper head portion of the cylinder before the upper head portion and lower head portion of the cylinder are mated and welded together.