A high-pressure tank includes a liner that includes a body that is cylindrical in shape and a pair of dome portions each of which is provided at a respective end of the body in an axial direction, and a reinforcing layer provided on an outer circumferential face of the liner. The reinforcing layer includes a pair of resin rings each of which is provided encircling a respective end portion of an outer circumferential face of the body, a hoop layer that covers part of the outer circumferential face of the body, between the resin rings, and a helical layer that covers the resin rings, the hoop layer, and the dome portions. The resin rings are configured to cover part of the body from boundary portions between the body and the dome portions, and increase in thickness from the boundary portions toward a middle of the body.

A liquid cryogen stored in a liquid cryogen space of a closed insulated cryogenic storage vessel is subcooled by allowing it to enter into a conduit disposed in the liquid cryogen space where it is expanded by a pressure reducer in the conduit, thereby producing a cooled biphasic mixture of the cryogen in liquid and vaporized forms. The cooled biphasic mixture has a temperature lower than that of the liquid cryogen in the liquid cryogen space. Heat is transferred across the conduit from the liquid cryogen in the liquid cryogen space to the cooled biphasic mixture.

Disclosed is a liquefied hydrogen filling apparatus configured such that connection between liquefied hydrogen injection lines is performed stepwise, whereby there is no concern of leakage of liquefied hydrogen the moment the liquefied hydrogen injection lines are connected to each other, and therefore it is possible to guarantee safety and to prevent loss of fuel. In addition, the state of connection between the liquefied hydrogen injection lines is securely maintained, whereby there is no concern of separation due to internal pressure at the time of filling or other external force, and therefore it is possible to perform safe filling.

A pressure vessel includes a liner including a cylinder part and side parts provided at both ends of the cylinder part, each side part having a dome shape, and a carbon fiber layer including a first hoop layer surrounding a part of an outer circumferential surface of the cylinder part and second hoop layers surrounding other parts of the outer circumferential surface of the cylinder part, each of the second hoop layers having a thickness different from a thickness of the first hoop layer.

A pressure vessel system for a vehicle includes a pressure vessel and a fuel line. The system also includes a blocking unit which, in an inoperative state, prevents fuel from passing out of the pressure vessel into the fuel line. A control unit for the blocking unit is designed, under the action of electrical energy, to transfer the blocking unit from the inoperative state into an active state in which fuel can pass out of the pressure vessel into the fuel line. Furthermore, the system includes an electrically conducting connection to an electrical system of the vehicle via which electrical energy can be provided for controlling the blocking unit. In addition, the system includes an access interface unit via which electrical energy for controlling the blocking unit can be provided from an external energy supply if no electrical energy is available from the electrical system of the vehicle.

Device for filling pressurized gas tanks, in particular hydrogen tanks of vehicles, comprising a fluid transfer circuit having an upstream end connected to a plurality of sources (2 to 10) of pressurized fluid and a downstream end comprising at least one dispenser intended to be connected to a tank to be filled, the sources (2 to 10) being connected in parallel to the at least one dispenser, each source (2 to 10) comprising a fluid outlet connected to a respective outlet valve (22 to 30), the sources (2 to 10) being connected in parallel in different subgroups to respective transfer lines (35 to 37), i.e. all the sources of a same subgroup are connected in parallel to a dedicated transfer line (35 to 37), each of several subgroups and preferably all subgroups of sources comprising multiple sources, the transfer lines (35 to 37) being connected in parallel to the at least one dispenser and each comprising a respective transfer valve (32 to 34), the at least one dispenser comprising a set of control valve(s), the at least one dispenser and its set of control valve(s) being dimensioned so as to transfer a predetermined maximum filling gas flow, the outlet valves (22-30), the transfer lines (35-37) and the transfer valves (32-34) being dimensioned so as to transfer a maximum transfer gas flow which is smaller than the maximum filling gas flow, the sum of a plurality of maximum transfer gas flows provided by a plurality of outlet valves (22-30) and a plurality of transfer lines (35-37) being greater than or equal to the maximum filling gas flow.

The invention relates to a safety valve system (10a; 10b; 10c) for a combustion gas vehicle (11), having: an excess pressure valve unit (13) with a first gas outlet (14) for discharging excess pressure gas (29) out of a combustion gas tank (12) of the combustion gas vehicle (11) in a first outlet direction (RI) and at least one additional gas outlet (15, 16, 17) for discharging excess pressure gas (29) out of the combustion gas tank (12) in at least one additional outlet direction (R2) which differs from the first outlet direction (RI); a state detection unit (18) for detecting a vehicle position and/or a vehicle orientation of the combustion gas vehicle (11) and/or a surroundings state of the combustion gas vehicle (11); and an adjustment unit (19) for adjusting the discharge of excess pressure gas (29) through the first gas outlet (14) and/or through the at least one additional gas outlet (15, 16, 17) on the basis of the detected current vehicle position, the detected current vehicle orientation, and/or the detected surroundings state. The invention additionally relates to a combustion gas vehicle (11), to a computer program product (26), and to a storage means (26) with a computer program product (26) stored thereon.

The disclosure generally describes an apparatus for simulating a refueling operation for a fuel cell electric vehicle (FCEV). The fuel is compressed hydrogen gas dispensed by hydrogen refueling station (HRS).

A mobile hydrogen fueling system for use in fueling mobile hydrogen vehicles includes: a towing vehicle with a hydrogen powered fuel cell that powers the towing vehicle, and a trailer. The trailer includes a hydrogen storage tank, a hydrogen fuel transport device such as a gas compressor or a liquid pump, and a dispenser attached to the hydrogen tank that dispenses hydrogen to a receiving hydrogen tank. A controller regulates the hydrogen fuel transport device and thus the flow of hydrogen that the dispenser dispenses.

A service providing mobile unit 1 comprised of a frame 2 forming a ring shape about a horizontal axis, movement-use wheels 4, 5 attached to the bottom part of the frame 2, a hydrogen storage tank insert pan 10 formed inside the frame 2, and a fuel cell 40 arranged inside the frame 2. Hydrogen is supplied to the fuel cell 40 from a replaceable hydrogen storage tank 20 inserted into the hydrogen storage tank insert part 10. A service providing space 3 having a ring-shaped inner circumference surface of the frame 2 as its outer edges is formed by the frame 2, and power can be supplied from the fuel cell 40 to a service providing unit installed inside the service providing space 3.