Self-lubricated actuator for on-blade rotor control

US7677868B2 · kind B2 · utility

Assignee

• SIKORSKY AIRCRAFT CORPORATION · US

Inventors

• Zaffir A. Chaudhry · South Glastonbury, US
• Andrew Collins · Bedford, US
• Ulf J. Jonsson · South Windsor, US
• Fanping Sun · Glastonbury, US
• Brian E. Wake · South Glastonbury, US
• Michael G. O'Callaghan · Manchester, US
• Jimmy Lin-Min Yeh · Town of West Hartford, US

Key dates

• Filing date: Dec 7, 2006
• Grant date: Mar 16, 2010
• Expiry date: May 30, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/30
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A self-lubricated actuator for a rotor blade flap of a helicopter having a housing; a motor having a shaft disposed in a bearing is provided. The actuator further has an output rod and a mechanism operatively associated with the motor and the output rod to transmit movement from the motor to the output rod. The housing includes a lubrication medium capable of substantially immersing the bearing, the motor shaft and the mechanism during operation.