An aircraft ground refueling management system of the present disclosure utilizes various components already existing in an aircraft ground refueling vehicle to characterize and track, in real time, events of an aircraft refueling operation. The components include a fuel meter, a fuel delivery deadman sensor, a fuel nozzle sensor and a ground refueling vehicle brake sensor. Data from these components in combination with data provided by a mobile computing device that is integral to the refueling operation provide the data points to determine the amount of time elapsed for each event of the refueling operation. Knowledge of each event of the refueling operation provides the opportunity for identifying where time spent can be reduced.

An aircraft ground refueling management system of the present disclosure utilizes various components already existing in an aircraft ground refueling vehicle to characterize and track, in real time, events of an aircraft refueling operation. The components include a fuel meter, a fuel delivery deadman sensor, a fuel nozzle sensor and a ground refueling vehicle brake sensor. Data from these components in combination with data provided by a mobile computing device that is integral to the refueling operation provide the data points to determine the amount of time elapsed for each event of the refueling operation. Knowledge of each event of the refueling operation provides the opportunity for identifying where time spent can be reduced.

A sub-cooler for a sub-cooling cryogenic refueling system is disclosed herein. The sub-cooler includes a first valve to separate flowing cryogenic fuel into a primary flowline and an auxiliary flowline, a second valve to reduce the saturated pressure and temperature of the cryogenic fuel in the auxiliary flowline, a cryogenic heat exchanger to transfer heat from the primary flowline to the auxiliary flowline, a temperature sensor to measure the temperature of the sub-cooled cryogenic fuel in the primary flowline, and a sub-cooler controller to control the effective areas of the primary flowline inlet and the auxiliary flowline inlet at the first valve.

A sub-cooler for a sub-cooling cryogenic refueling system is disclosed herein. The sub-cooler includes a first valve to separate flowing cryogenic fuel into a primary flowline and an auxiliary flowline, a second valve to reduce the saturated pressure and temperature of the cryogenic fuel in the auxiliary flowline, a cryogenic heat exchanger to transfer heat from the primary flowline to the auxiliary flowline, a temperature sensor to measure the temperature of the sub-cooled cryogenic fuel in the primary flowline, and a sub-cooler controller to control the effective areas of the primary flowline inlet and the auxiliary flowline inlet at the first valve.

The invention relates to a retaining apparatus (1) having a filter element (3) in a fluid line (2) which can be flowed through in a flow direction (V) by a fluid (F) comprising a foreign fluid (X), having a volume flow control apparatus (5) by way of which the volume flow (S) through the fluid line (2) can be controlled, having a sensor device (6) by way of which the fraction of foreign fluid (X) in the fluid (F) can be determined, and having a control device (7) by way of which the volume flow (S) can be controlled by way of the volume flow control apparatus (5) in a manner dependent on the fraction of foreign fluid (X) in the fluid (F) as determined by way of the sensor device (6). The invention furthermore relates to a fuel tank filling installation having said retaining apparatus, and to a method for retaining foreign fluid from a fluid.

Methods, apparatus, systems and articles of manufacture are disclosed for a first link to rotate about a pin joint, a second link rotatably coupled to the first link, the second link having a nozzle at a first end and a weight at a second end opposite the first end, and a fluid inlet including a funnel portion and an opening, the funnel portion having a conical taper converging towards the opening.

Methods, apparatus, systems and articles of manufacture are disclosed for a first link to rotate about a pin joint, a second link rotatably coupled to the first link, the second link having a nozzle at a first end and a weight at a second end opposite the first end, and a fluid inlet including a funnel portion and an opening, the funnel portion having a conical taper converging towards the opening.

A connector system for an aircraft, for connecting a hose line, includes a skin panel which has a clearance which extends between an external face and an internal face, a primary part which on the clearance is disposed on an internal side of the skin panel that is defined by the internal face, a cover mounted on the primary part and movable between a closing position in which the cover covers the clearance of the skin panel, and an opening position in which the cover releases the clearance of the skin panel, and a tubular connector port mounted on the primary part and movable between a storage position in which the connector port is disposed on the internal side of the skin panel, and a use position in which the connector port projects beyond the external face of the skin panel.

A connector system for an aircraft, for connecting a hose line, includes a skin panel which has a clearance which extends between an external face and an internal face, a primary part which on the clearance is disposed on an internal side of the skin panel that is defined by the internal face, a cover mounted on the primary part and movable between a closing position in which the cover covers the clearance of the skin panel, and an opening position in which the cover releases the clearance of the skin panel, and a tubular connector port mounted on the primary part and movable between a storage position in which the connector port is disposed on the internal side of the skin panel, and a use position in which the connector port projects beyond the external face of the skin panel.

The present disclosure relates to a valve assembly for controlling flow. The valve body has an inlet end and an outlet end. A piston is positioned within the valve body and is movable between an open position to open the valve body and a closed position to close the valve body. A spring is mounted between the piston and a spring adjustment member. A portion of the spring adjustment member is accessible through the inlet end of the valve body so as to be engageable by a tool to facilitate rotation of the spring adjustment member to vary compression of the spring to set a spring pressure rating.