A valve for a fluid reservoir includes an inner portion configured to be arranged inside the reservoir, the inner portion including at least one portion of a sensor for measuring at least one parameter characterizing the fluid, the valve being capable of receiving information from a computer, external to the valve, the valve also includes an outer portion configured to be arranged outside the reservoir, the outer portion having an internal computer that acquires data from the at least one sensor, communicates bidirectionally with the external computer, takes into account information received from the external computer and data from the at least one sensor for controlling at least one actuator of the valve, and measures at least one current parameter in the electrical connection.

An automatic obstruction device for closing a filling circuit for filling a tank with fluid includes: a movable element movable between a non-obstruction position of the filling circuit, in which the movable element offers resistance to the fluid compatible with the filling of the tank, and an obstruction position of the filling circuit, in which the movable offers a resistance to the fluid that is incompatible with the filling of the tank; a holding element of the movable element holding the movable element in the non-obstruction position, and allowing movement of the movable element toward the obstruction position; and a first device of non-reversible movement or of non-reversible modification of the holding element allowing movement of the movable element toward the obstruction position, and being controllable by a control device.

The invention relates to a method for filling a hydrogen tank (2) of a motor vehicle (1) comprising a fuel cell drive, wherein the method comprises the steps: (a) determining a first operating time at which the motor vehicle (1) is to be started up and an expected first operating location at which the motor vehicle (1) is to be started up, (b) ascertaining a predicted maximum ambient temperature (T.sub.U,max) at the first operating location at the first operating time, and (c) filling the hydrogen tank with hydrogen (3) until a tank pressure (p) in the hydrogen tank (2) reaches a maximum permissible tank pressure (p.sub.max) at a tank temperature (T), wherein the following applies for the tank temperature (T): tank temperature (T)=[maximum ambient temperature (T.sub.U,max); maximum ambient temperature (T.sub.U,max)+10 K]. The invention relates further to a motor vehicle (1) comprising a hydrogen tank (2), a fuel cell drive and a control system (5) for controlling filling of the hydrogen tank (2), wherein the control system (5) to carry out the method.

The invention relates to a system for providing a fluid, comprising at least a first and a second cryogenic container for storing the fluid, wherein the system comprises a first retrieval line connecting to the first cryogenic container for retrieving a first mass flow (M1) of fluid and a second retrieval line connecting to the second cryogenic container for retrieving a second mass flow (M2) of fluid, wherein the system comprises means, which are configured to establish two mass flows (M1, M2) of different dimensions such that in a first operational mode a hold time of the two cryogenic containers converges upon retrieval and/or in a second operational mode the hold time of the two cryogenic containers essentially decreases at the same rate if the hold times of the two cryogenic containers are essentially equal.

A device for controlling a charging of a hydrogen tank for a vehicle, may efficiently perform a charging of a hydrogen tank regardless of a hydrogen charging protocol for each charging station configured to supply hydrogen to the hydrogen tank by directly controlling a hydrogen charging speed of the hydrogen tank in a vehicle upon charging the hydrogen tank mounted in the vehicle.

The present disclosure provides systems and methods for refilling fluid containers. A fluid container may include a bottle and a valve assembly. The valve assembly may include two valves and be configured to engage with the bottle and a filling head or dispensing head. A system is configured to provide pressurized fluid to the refillable container, monitor filling, determine when to stop filling, and determine how much fluid was provided. The valve assembly may include a float mechanism coupled to one of the valves of the valve assembly to ensure fluid flow is stopped when the fluid container is full. The fluid, which can include carbon dioxide, is stored in a storage tank. A flow system provides the fluid to a filling head, which engages with the fluid container. The flow system includes a transfer pump, valves, and sensors configured to provide the fluid to the filling head.

To enable a hydrogen tank to be efficiently filled with hydrogen even when the hydrogen tank has a large capacity, hydrogen filling at the nozzle flow is prohibited when the nozzle flow of a nozzle is larger than the receptacle flow of a receptacle or when the receptacle flow is unknown under the condition that the nozzle and the receptacle can be connected to each other.

Method for filling a storage vessel with liquefied gas by means of a tank of liquefied gas, the method comprising a step of transferring liquefied gas from the tank into the storage vessel by means of a pressure differential, wherein the storage vessel prior to the transfer step has an internal pressure higher than the internal pressure of the tank, the method comprising, prior to the transfer step, a step of placing the tank and the storage vessel in fluidic communication in order to ensure a drop in the pressure in the storage vessel to the benefit of the tank and a step of increasing the pressure in the tank using a pressurizing device.

The invention relates to a pressurized gas tank receiving assembly (1) for a motor vehicle (100) for cooling pressurized gas tanks (10), wherein the pressurized gas tank receiving assembly (1) comprises: a) a main body (20) with a plurality of supporting surfaces (22) in the form of channels for receiving the pressurized gas tank (10), wherein the main body (20) is thermally conductive and has a mounting interface (26) for arrangement on a counter mounting interface (126) of a body (120) of the motor vehicle (100), wherein the main body (20) has thermally conducting surfaces (24) for thermally communicating connection to the body (120), b) pressurized gas tanks (10) for storing gas under high pressure, wherein the pressurized gas tanks (10) are thermally conductive and are interlockingly received on the supporting surfaces (22) of the main body (20), which supporting surfaces are in the form of channels, for thermal communication with the main body (20).

An apparatus for controlling a fuel tank according to an embodiment of the present disclosure may include a fuel tank having a plurality of volumes, and a controller that controls a charging state of a fuel charged in the fuel tank and selectively controls use of the fuel charged in the plurality of volumes based on an amount of the fuel used and a state of the fuel tank.