Patent ID: 9205928
Filing Date: 2015-12-08
Classification: B64C,B64D,F02C,F03D,F05D,Y02E,Y02T

Abstract:
1. A startup assistance apparatus for a ram air turbine (RAT), the apparatus comprising: a shaft having threading over a partial length thereof; a nut disposed on the shaft to travel back and forth between a beginning of the partial length, an end of the partial length and a remote position remote from the partial length; an elastic element to bias the nut towards the remote position; a lever operably coupled to the nut to selectively move the nut from the remote position to the end of the partial length against the elastic element bias; and a system by which the nut provides the RAT with first direction blade rotation assistance while traveling from the beginning to the end of the partial length and second direction blade rotation of the RAT selectively moves the nut from the end to the beginning of the partial length against the elastic element bias.