发明名称 |
Emergency collective actuator and method for a helicopter |
摘要 |
A helicopter includes a rotor system having a rotor with an adjustable pitch that is controlled at least in part by a pilot using a collective control and which helicopter generates a Low RPM signal that is indicative of a threshold low rotational speed of the rotor. An actuator arrangement can move the collective control by exerting a force on the collective control such that the pilot is able to overcome the actuator force but which otherwise can move the collective control from a current operational position toward a minimum pitch position. A clutch can co-rotate with a motor to serve in transferring the actuation force to reduce the adjustable pitch and can slip relative to the actuator shaft assembly responsive to an application of a counterforce applied by the pilot to the collective control such that the counterforce overcomes the actuation force. |
申请公布号 |
US8651425(B2) |
申请公布日期 |
2014.02.18 |
申请号 |
US201213479130 |
申请日期 |
2012.05.23 |
申请人 |
MERCER JOHN E.;MARVIN MARK H.;MERLIN TECHNOLOGY INC. |
发明人 |
MERCER JOHN E.;MARVIN MARK H. |
分类号 |
B64C27/54;B64C27/57 |
主分类号 |
B64C27/54 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|