A system and a method for filling a tank are provided. The tank filling system includes tanks that are filled with predetermined fluid and a manifold that is coupled to each of the plurality of tanks in a communication manner. A first flow passage is connected to a first inlet of the manifold to supply the fluid to be filled into the plurality of tanks to the manifold and a second flow passage is connected to a second inlet of the manifold spaced apart from the first inlet of the manifold by a predetermined distance to supply the fluid to be filled into the plurality of tanks to the manifold. A controller opens and closes the first flow passage and the second flow passage.

Measures for monitoring and manufacturing tanks for cryogenic liquids. The tank is manufactured in a way that signal and power lines from a control unit to sensors of the cryogenic tank are integrated with the tank walls. The conductive track structure so formed has a layer structure that uses the naturally occurring or artificially generated insulating layer on the tank wall material as a substrate on top of which conductive paths are formed that connect the sensors to the control unit.

A fluid transfer apparatus transfers fluid from a first bulk storage vessel at a gas pressure equal to or greater than a first gas pressure. The fluid transfers to a first or second supply vessel; each having a gas pressure equal to or less than a second pressure. The second pressure less than the first pressure. The fluid transfer continues until the fluid in the first or second supply vessel reaches a predetermined weight inside the first or second supply vessel. The fluid in the filled first or second supply vessel, at the predetermined weight, under a pressure equal to or less than the second pressure; and the fluid in a liquefied and gas state. The apparatus heats the fluid in the first or second supply vessel, filled to the predetermined weight, to bring the fluid in the first or second supply vessel to a third gas pressure. The third gas pressure higher than the first gas pressure and the second gas pressure. The fluid in the first or second supply vessel having the third gas pressure can include fluid in the liquefied gas state and gas state or super critical state.

Tank for storing liquefied gas comprising a sealed housing defining a storage space for the liquefied gas, the housing comprising a lower end and an upper end, the tank comprising a device for measuring the level of liquid in the housing, the device for measuring the level of liquid comprising, arranged in the housing, a float and a guide for moving the float, characterized in that the guide comprises an end connected to an upper portion of the housing and a lower end connected to a lower portion of the housing, the float being mounted moveably in translation on the guide such that the float is free to slide along the guide, the device for measuring the level of liquid further comprising at least one float position sensor.

Protective devices for pressurized gas cylinders have a housing which is arranged around an inner cavity intended for receiving an extraction valve and which has access openings for the extraction connection and for further fittings. In order to counteract soiling or contamination of the extraction connection, the invention provides for an elastically deformable safety element to be fastened to the housing in the region of the access opening of the extraction connection, said element being able to be swung out from a closed position, in which the extraction connection is completely covered and/or enclosed by the safety element, into a position in which it frees the extraction connection.

A sensor assembly is positioned on an exterior of a tank to measure a fluid level within the tank. The tank is modified to include a surface feature and the sensor assembly is slotted within that surface feature. The sensor assembly includes a sensor device and a control circuit configured to drive the sensor device and evaluate readings to determine the fluid level. The sensor assembly further includes a communications interface to enable communication with a management system via a communications network. The management system can store information (e.g. fill status) related to the tank and additionally communicate with vendors or end users to coordinate resupply.

An apparatus, namely an infrared (IR) interference shield, is described that can be utilized with a vehicle that employs hydrogen fueling, such as a fuel cell electric vehicle (FCEV). For example, the IR interference shield is mounted onto the vehicle's hydrogen fueling receptacle. The IR interference shield is distinctly structured to reduce or prevent interference of IR wireless communication between a vehicle-side IR transmitter on the receptacle, and an IR receiver of the hydrogen fueling station. The IR interference shield can block interference to IR signals that may negatively affect IR wireless communication between the hydrogen fueling station and the vehicle. Thus, the IR interference shield improves reliability of the communication between the vehicle and the hydrogen fueling station, thereby improving the overall effectiveness and efficiency of the hydrogen refueling process.

An oxyacetylene type work apparatus including a first container containing acetylene; a first pressure gauge configured to measure the pressure in the first container, a first two-dimensional marking disposed on the first dial, a second container containing oxygen; a second pressure gauge configured to measure the pressure in the second container, a second two-dimensional marking disposed on the second dial, an image capturing device configured to produce images of the first pressure gauge and of the second pressure gauge; an electronic logic circuit configured to process said images of the first and second pressure gauges thereby determining the respective angular positions, and a sensor configured to measure the temperature of the first acetylene container.

A vehicle has a fuel system that includes a controller that determines when the vehicle is in a refuel mode or a run mode based on a connection of a refuel nozzle to a vehicle connection of the vehicle. The controller controls a fuel pump input selector, a vehicle fuel pump, and a fill/run fuel selector such that fuel is pumped from a storage tank external to the vehicle into a vehicle fuel tank by way of the vehicle fuel pump in the refuel mode, and fuel is pumped to an engine of the vehicle from the vehicle fuel tank by way of the vehicle fuel pump in the run mode.

A System to convert and dispense pressurized gas(es) of cryogenic liquids of gas(es), and systems and methods using a sphere pressure vessel to efficiently convert liquid natural gas (LNG) to compressed natural gas (CNG) and low pressure natural gas (NG) and other cryogenic liquids of gas. The system requires one dedicated sphere pressure vessel at the dispensing location and the location of elements according to horizontal and vertical orientation to convert, retain, store, and dispense multiple pressures of gas from a cryogenic liquid supply such as a non-dedicated high pressure cryogenic personal supply tank. The system efficiently modifies and controls parameters of volume, pressure, and temperature in conversion scale to retain all converted product under human control to dispense, without process required waste, for use in commercial, utility and industrial uses, and scaleable for single family residential applications where service can be accomplished by pickup truck and trailer, where semi trucks access is not available.