| 摘要 |
Provided herein are fueling nozzles for the re-fueling of various motorized vehicles, particularly aircraft. A re-fueling nozzle according to this invention includes a gauge from which the pressure of a liquid fuel passing through the nozzle may be read by a technician performing the re-fueling operation. Nozzles according to the invention further comprise a shrouding means which protect the pressure gauge from damage during a refueling operation, or while the nozzle is being transported or stored.According to a preferred form of the invention, a nozzle comprises an inner conduit portion and an outer sleeve portion, wherein the outer sleeve portion is rotatable about the inner conduit portion. A shrouding means according to the invention is disposed on the outer sleeve portion, and moves when the outer sleeve portion is rotated, such as, when the nozzle is being engaged to a nozzle-receiving portion of an aircraft fuel tank, to expose the viewing face of the gauge to enable a re-fueling technician to know at all times the exact pressure of the fuel as it enters the fuel tank. Through use of a fuel nozzle according to the invention, tank integrity is preserved, and ruptures due to overpressurization of liquid fuels may be eliminated.
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