This invention relates to a method and a system for calculating in real-time the duration of autonomy of a non-refrigerated tank containing natural gas comprising a liquefied natural gas (LNG) layer and a gaseous natural gas (GNG) layer. This invention also relates to a system for calculating, in real time, according to the method of the invention, the duration of autonomy of a non-refrigerated tank, as well as a vehicle comprising an NG tank and a system according to the invention.

A sensor mounting assembly is configured for use with a vessel arrangement including at least four vessels. The assembly includes first and second elongated frame members, first and second rollers, and first and second sensors. The first sensor is attached to the first elongated frame member and is configured to contact the surface of the first vessel upon actuation in a first direction. The second sensor is attached to the second elongated frame member and is configured to contact the surface of the second vessel upon actuation in a second direction that is substantially orthogonal to the first direction. This disclosure also describes a method of mounting at least six sensors for use with a vessel arrangement including at least four vessels, the vessel arrangement disposed in a container in a two-by-two stacked configuration having a central space.

The invention relates to a gas container equipped with a gas distribution valve having an electronic device for measuring gas autonomy. Flow selection means allow a desired gas flow to be selected. The electronic device includes a pressure sensor. Signal processing means allow gas autonomies to be determined on the basis of the pressure signal and of the selectable gas flows. A selection component cooperates with the signal processing means in order to successively display, on data display means and in response to successive digital activations by the user of the selection component, the various selectable flow values and the various corresponding autonomies, with each flow value being simultaneously displayed with a corresponding autonomy.

The invention relates to a filling level measuring device (10) for measuring the filling level in a container (2) through the wall (9) thereof by means of ultrasound, having an ultrasonic measuring head (12), a controller (20), and a fastening device (24) by means of which the filling level measuring device (10) can be fastened to the container (2) such that the ultrasonic measuring head (12) is pressed against the wall (9) of the container (2). The invention further relates to a method of operating such a filling level measuring device (10), wherein a sampling rate is used which is situation-dependent. The invention finally relates to an assembly made up of such a filling level measuring device and at least one spacer (50) which can be attached to the lower edge of a container (2) to be provided with the filling level measuring device (10).

An electronic liquid level gauge assembly includes an electronic display located in a housing connected to a tank. The display has first and second display portions for indicating liquid level condition. A first electronic sensor senses a change in magnetic field of a magnet associated with a liquid level transducer, with magnet rotation being proportional liquid level change. A processor determines a temperature-compensated liquid level condition by correlating the liquid level signal with temperature measurement of the liquid. A temperature-compensated vapor space can also be calculated based on tank information and properties of the liquid. Signals related to the temperature-compensated liquid level and vapor space are sent to the display and wirelessly transmitted to a smart phone or the like for remotely viewing the tank information. The smart phone also includes a special app for sending information, firmware updates, and display configuration data to the electronic gauge assembly.

Method and apparatus for real-time detection of the level of the cryogenic liquid in a container. The cryogenic liquid level detection apparatus includes a liquid level indicator, a floating scale, and a buoy attached at a bottom end of the floating scale. A top end of the floating scale moves against calibrated markings of the liquid level indicator, thereby indicating the level of the cryogenic liquid in real-time.

A system for measuring pressure of an in-tank regulator includes a direct-pipe flow path which directly communicates with an inside of a high-pressure container, a high-pressure sensor, of which a portion is movable into the direct-pipe flow path, fastened to and separated from the direct-pipe flow path, and a shut-off valve disposed on the direct-pipe flow path between the high-pressure container and the high-pressure sensor, wherein when the high-pressure sensor is separated from the direct-pipe flow path, the direct-pie flow path is sealed by the shut-off valve.

The design and structure of a smart gas cylinder valve cap coupled with a smart MEMS mass flow meter, an embedded iBeacon or RFID reader and a remote data transmission module, which is capable of formulating an Internet of Things (IoT) system, is demonstrated in the disclosure. The smart gas cylinder cap(s) can be directly used to replace the mechanical valve handwheel or directly attached to the top of the existing mechanical handwheel as a smart data relay, and the cap(s) can either be applied to a single or plural numbers of gas cylinders while the smart gas flow meter shall communicate with the smart gas cap as well as to relay gas consumption data to a designated data center or a cloud which can further interface with the users and suppliers of the gas cylinders. The system is beneficial for many of the existing gas cylinder applications such as construction gas process, medical gas racks, gas cylinders for food and beverage, and gas racks for electronics fabrication, where the gas cylinder status, gas consumption as well as cylinder logistics are critical for the applications.

The invention relates to a filling level measuring device (10) for measuring the filling level in a container (2) through the wall (9) thereof by means of ultrasound, having an ultrasonic measuring head (12), a controller (20), and a fastening device (24) by means of which the filling level measuring device (10) can be fastened to the container (2) such that the ultrasonic measuring head (12) is pressed against the wall (9) of the container (2). The invention further relates to a method of operating such a filling level measuring device (10), wherein a sampling rate is used which is situation-dependent. The invention finally relates to an assembly made up of such a filling level measuring device and at least one spacer (50) which can be attached to the lower edge of a container (2) to be provided with the filling level measuring device (10).

The invention relates to a head (5) for a storage container for fluids, comprising a head body, characterised in that a through sleeve (10) is located inside the head body, wherein a protection tube (2) is coupled to the through sleeve (10) in the lower part of the head body, and a liquid level capacitive sensor (3) is mounted in the lower part of the body, a gland coupled with a flange to an electronic junction box (4) powered by a battery or an accumulator, the gland is located in the upper part of the body, the junction box comprising a circuit board equipped with a microcontroller and a diode gauge (6), and conduits ended with a plug extend from the electronic junction box (4).