IN-FLIGHT FUELING UNIT TAPER GAGE Russian patent published in 2013 - IPC B64D39/00 

FIELD: transport.

SUBSTANCE: invention relates to aircraft engineering, particularly, to fueling unit taper gage. Proposed taper gage comprises case, ball hinge and stabilising aerodynamic taper. Jacket is fitted on taper case with three annular channels made at its front side and three slot-like openings are made at its lateral sides to support three shutters with their three drives. Two accelerometers are arranged on taper case in two mutually perpendicular mirror planes of the taper. Outputs of accelerometers are connected to inputs of two shutter drive control systems arranged on taper case. Every said system consists of acceleration integrator, speed integrator, divider, two-input adder and two-way logical commutator connected in both systems. Outputs of accelerometers are connected to inputs of speed integrators and one of inputs of adders. Outputs of speed integrators are connected to inputs of dividers. Outputs of dividers are connected to second inputs of adders while outputs of adders are connected to appropriate inputs of logical commutator.

EFFECT: better stabilisation of taper till contact with fuel receiver.

6 dwg