| 摘要 |
A servo mechanical control for efficiently bringing a rotating turbine wheel of a turbine engine having a multi-stage stator assembly to a non-rotating condition and for maintaining the turbine wheel in a non-rotating condition. The servo mechanical control includes a detector for detecting the direction of rotation of the turbine wheel and a control device interconnected with the multi-stage stator assembly and operable, in response to the detection of the turbine wheel in either predetermined direction, to displace the multi-stage stator assembly to a position causing a reverse torque on the turbine wheel. The detector preferably consists of at least one brake body pivotally interconnected with the vehicle and selectively operable to engage the output shaft of the turbine wheel. When engaged with the output shaft, the brake body is pivoted in response to angular motion of the turbine wheel. The control device preferably includes a piston and cylinder assembly interconnected with the multi-stage stator assembly and a valve responsive to the angular position of the brake body to selectively interconnect the sides of the piston and cylinder assembly with a pump and a sump.
|
