Aerial refueling hose reel drive controlled by a variable...

Aeronautics and astronautics – Aircraft structure – Fuel supply

Reexamination Certificate

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Details

C244S13500B

Reexamination Certificate

active

06866228

ABSTRACT:
The invention is a variable displacement hydraulic motor-controlled hose reel drive system for aerial refueling of a receiver aircraft from a tanker aircraft. The system includes a variable displacement hydraulic motor, a tachometer/position sensor, a reaction torque sensor and a microprocessor which, depending upon data received from the system's position and reaction torque sensors, sends appropriate signals to the motor. The invention is also a method for deploying a hose and drogue so as to reduce the likelihood that the hose would go into oscillation after initial engagement of a receiver aircraft's probe with the drogue. In an embodiment of the invention, the hose is retracted prior to hook up of the probe and drogue, and the force required to retract the hose is recorded. After initial engagement of the probe with the drogue, the hose is retracted until the force required to retract the hose rises to about the same force previously recorded.

REFERENCES:
patent: 6604711 (2003-08-01), Stevens et al.

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