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US 12,152,732 B2Granted
Tank device for temperature pressure relief in a fuel cell tank
AssigneeRobert Bosch GmbH
InventorsHans-Arndt Freudigmann, Bernd Stuke, Olaf Ohlhafer
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AssigneeRobert Bosch GmbH
InventorsHans-Arndt Freudigmann, Bernd Stuke, Olaf Ohlhafer
Estimating the term…
A tank device for temperature pressure relief in a fuel cell tank, the tank device comprising at least two tank containers and a supply line which can be connected to the tank containers, each of the at least two tank containers having at least one shutoff valve at one end, the shutoff valve being arranged between the respective tank container and the supply line. At least one safety valve is arranged at another end of the tank container, wherein at least the at least two tank containers and the respective safety valve are at least almost completely enclosed by a housing element and/or are encapsulated from an environment. A positive pressure prevails in the housing element, wherein the housing element contains a temperature-sensitive material, wherein the meltable medium of the safety valve melts when the pressure prevailing in the inner space falls, and thus opens the safety valve.
A tank device (1) for temperature pressure relief in a fuel cell tank, the tank device (1) comprising at least two tank containers (2) and a supply line (4) configured to be connected to the tank containers (2), each of the at least two tank containers (2) having at least one shutoff valve (8) at one end (20), said shutoff valve (8) being arranged between the respective tank container (2) and supply line (4), at least one respective safety valve (10) being arranged at another end (21) of the tank container (2), characterized in that the at least two tank containers (2) and the respective safety valves (10) are at least almost completely enclosed by a housing element (24) and/or are encapsulated from an environment (190), a positive pressure (181) prevailing in the housing element (24), the housing element (24) containing a temperature-sensitive material (25), the safety valves (10) opening when the pressure prevailing in the inner space (180) falls.
A tank device (1) for temperature pressure relief in a fuel cell tank, the tank device (1) comprising at least two tank containers (2) and a supply line (4) configured to be connected to the tank containers (2), each of the at least two tank containers (2) having at least one shutoff valve (8) at one end (20), said shutoff valve (8) being arranged between the respective tank container (2) and supply line (4), at least one respective safety valve (10) being arranged at another end (21) of the tank container (2), characterized in that the at least two tank containers (2) and the respective safety valves (10) are at least almost completely enclosed by a housing element (24) and/or are encapsulated in a pressure-tight manner, from an environment (190), a positive pressure (181) in relation to the environment (190) and/or to an ambient pressure (191) prevailing in the an inner space (180) of the housing element (24), the housing element (24) containing a temperature- sensitive material (25), which is plastic, the safety valves (10) opening when the positive pressure (181) prevailing in the inner space (180) falls.
Dependencies are inferred from the claim text.