The present invention relates to a method, system, vehicle, and computer program product for determining time data relating to a non-combustion outlet process of a fuel gas from a gas tank associated with a vehicle. The method comprises providing a model for the state of fuel gas in the gas tank. The method further comprises determining time data relating to the outlet process of the fuel gas based on the model.

A self-calibrating system, apparatus, and method for accurately measuring a volumetric capacity of a tank. The system, apparatus and method comprise: a mechanism that adjusts a level of a platform; a light-emitting device with beam-like optics (laser, diode, etc.) mounted to the platform; mechanism for adjusting alignment of the light-emitting device with respect to the platform; a mechanism for rotating the platform by variable angles, including by 180-degrees; one or more level sensors (such as, for example, spirit levels, tilt sensors, or other devices) that provide feedback on the alignment of the platform normal to the gravity vector.

The invention relates to a method and to a device for determining an amount of gaseous fuel, which during a refueling process at a gas station has been transferred into a storage tank via a gas pump (3) and a filling hose (4) connected thereto, wherein in the gas pump (3) of the gas station, a flow meter (F) is provided, which during the filling of the storage tank detects the amount of fuel dispensed. Once the filling is completed, the filling hose (4) is depressurized, and the amount of fuel, which has not been transferred into the storage tank due to the depressurization, is detected, and this amount is subtracted from the amount detected by the flow meter (F).

A method for ascertaining the re-starting capability of a vehicle, in particular when parking the vehicle, includes detecting the pressure and the temperature of fuel in a pressurized container, determining a final pressure value of the fuel in the pressurized container, where the final pressure value is an expected pressure of the fuel in the pressurized container after a period of parking of the vehicle, comparing the final pressure value with a minimum pressure value in order to ascertain whether the vehicle is capable of re-starting after the parking period, and generating a warning signal when the final pressure value is lower than the minimum pressure value.

A vehicle such as a terminal or yard tractor used for freight spotting is provided with one or more individual, portable LPG cylinders of the type used by forklifts facilitating tank swapping on an as-needed basis for reduced downtime. Each auxiliary cylinder is a portable, removable and replaceable cylinder having a fuel capacity less than that of the vehicle's primary tank. A controller interfaced to a sensor and a pump is operative to pump fuel from the auxiliary LPG cylinder and into the fuel line to refill the primary LPG tank when the fuel level of the primary tank falls below a predetermined level. The invention may be factory-installed onto the vehicle, or may be provided as a kit enabling an existing vehicle to be retrofitted with the auxiliary LPG cylinder(s).

The present invention relates to a liquid gas level measuring system for use in a liquid gas tank and designed to cooperate with a float level gauge head mounted on the gas tank and made of magnetically inert material. The system comprises a dial module 1 attachable to the float level gauge head and a sensor module 2 releasably connected to the dial module 1. The dial module 1 is provided with at least one directing dial magnet 103 magnetically coupled with a drive magnet of the float level gauge. The sensor module includes a Hall effect sensor, a battery 204 and a radio module with an antenna 205, allowing wireless measurement data transmission to a remote location.

A method of distributing liquefied petroleum gas is described. The method comprises receiving payment for a predetermined amount of liquefied petroleum gas, transmitting an instruction to a valve to distribute liquefied petroleum gas monitoring, by a metering device, an amount of liquefied petroleum gas distributed determining, by the metering device, that the amount of distributed liquefied petroleum gas has reached a threshold amount, wherein the threshold amount is based, at least in part, on the predetermined amount, and responsive to determining that the amount of distributed liquefied petroleum gas has reached the threshold amount, transmitting an instruction to the valve to cease distribution of the liquefied petroleum gas.

The design and structure of a regulated digital gas dispense apparatus is exhibited in this disclosure. The MEMS mass flow meter embedded with a Bluetooth communication device and powered by a battery pack is designed to replace the mechanical low pressure gauge in a conventional gas dispense regulator such that the dispensed gas flowrate as well as totalized dispensed gas volume in each session or in consequent sessions can be continuously and precisely registered. The measured data are further relayed to local users via the local display or physical data port as well as via a paired smart device running a customized APP that can further relay the data to a designated cloud for cloud data processing, and the data can be streamed reversely. This disclosure shall assist and realize the ultimate optimized management for the users, distributors and/or gas manufacturers in the gas dispensing industry.

A fluid transfer system, including a first stage, including an inlet, a surge tank, and a first cylinder operatively arranged to pump the fluid from the inlet to the surge tank, and a second stage, including an outlet, a knock out tank, and a second cylinder operatively arranged to pump the fluid from the surge tank into the knockout tank.

A tank device for a tank liquid comprises a pressure vessel with a first chamber for the tank liquid and second chamber arranged in an interior of the tank. The first and second chamber are closed off with respect to each other and are in operative connection via at least one membrane which separates the first and second chambers and is capable of vibration. The tank device further comprises a controllable element for effecting a pressure surge in the pressure vessel, a pressure sensor for detecting a pressure vibration resulting from the pressure surge and a temperature sensor for measuring a temperature prevailing in the pressure vessel. An evaluation device of the tank device is configured to determine a current gas volume in the pressure vessel from a respectively detected pressure vibration and a measured temperature to thereby calculate the mass of the tank liquid.