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US 2019/0344885 A1Published application
Actuator system for a fly-by-wire aircraft
AssigneeSikorsky Aircraft Corporation
InventorDavid Anthony DeFusco
Life of this patent
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Abstract
An actuator system for an aircraft includes an actuator, and a control valve system operatively connected to the actuator. The control valve system includes a first direct drive valve (DDV) mechanically connected to a second DDV. A backup valve system is operatively connected to the actuator. The backup valve system includes one of an electro-hydraulic servovalve (EHSV) and a DDV.
Claims15
An actuator system for an aircraft comprising:
- an actuator;
- a control valve system operatively connected to the actuator, the control valve system including a first direct drive valve (DDV) mechanically connected to a second DDV;
- and
- a backup valve system operatively connected to the actuator, the backup valve system including one of an electro-hydraulic servovalve (EHSV) and a DDV.
1 more element
An aircraft comprising:
- a fuselage;
- at least one control member supported at the fuselage;
- and
- an actuator system operatively connected to the at least one control member, the actuator system comprising:
- an actuator;
- a control valve system operatively connected to the actuator, the control valve system including a first direct drive valve (DDV) mechanically connected to a second DDV;
- and
- a backup valve system operatively connected to the actuator, the backup valve system including one of an electro-hydraulic servovalve (EHSV) and a DDV.
5 more elements
Dependencies are inferred from the claim text.