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US 5,387,083 AGranted
Helicopter servoflap actuator having mechanical stop and oil pump
AssigneeAlliedSignal Inc.
InventorsLowell V. L. Larson, Mark Trutanich
Life of this patent
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Abstract
In a servoflap system for helicopters, angular positions of the helicopter's servoflaps are controlled by actuators located near the tips of the helicopter blades. Each actuator contains a pump for circulating a lubricant onto the actuator's gears when blade pitch is being changed. The pump is built into the actuator's mechanical stops.
Claims17
A servoflap system for a helicopter blade, comprising:
- at least one servoflap;
- hinging means for hinging said at least one servoflap to said blade near said blade's tip;
- and
- at least one self-lubricating actuator, located near said blade tip, for controlling the angular position of said at least one servoflap.
1 more element
Dependencies are inferred from the claim text.