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US 7,828,245 B2Granted
Dual motor dual concentric valve
AssigneeBell Helicopter Textron Inc.
InventorsBrian Suisse, Carlos A. Fenny, Kim Coakley, George Alagozian
Life of this patent
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Abstract
An actuator control system has a dual concentric servo valve having a spool and at least one motor adapted to selectively displace the spool.
Claims20
An actuator control system comprising:
- a dual concentric servo valve comprising:
- a first servo valve;
- a second servo valve concentrically coupled to the first servo valve;
- and
- a spool extending through the first servo valve and the second servo valve;
- and
- at least one motor coupled to the spool for selectively displacing the spool.
4 more elements
A flight control system comprising:
- a flight control computer adapted to receive a pilot input;
- at least one motor conductively coupled to the flight control computer;
- a dual concentric servo valve comprising:
- a first servo valve;
- a second servo valve concentrically coupled to the first servo valve;
- and
- a spool extending through both the first servo valve and the second servo valve;
- and
- at least one motor coupled to the spool for displacing the spool such that the spool may be selectively actuated by the flight control computer.
6 more elements
A method of controlling an actuator, comprising the steps of:
- providing a dual concentric servo valve comprising:
- a first servo valve;
- a second servo valve concentrically coupled to the first servo valve;
- and
- a spool extending through both the first servo valve and the second servo valve;
- coupling at least one motor to the spool;
- coupling the dual concentric servo valve to the actuator;
- controlling the actuator by selectively driving the motor.
5 more elements
Dependencies are inferred from the claim text.