| 摘要 |
PROBLEM TO BE SOLVED: To avoid a failure caused by excessive pressing to a surface 2a of a shroud of a bleed valve body or a mechanical locked state of a driving mechanism of a valve body, in control for opening/closing a bleed hole 10 provided in the shrouds 1, 2 by displacing the annular bleed valve body 5 in a longitudinal direction on the shroud 1, for a variable bleed valve structure in a multi-stage compressor for a gas turbine engine.SOLUTION: In a multi-stage compressor, a current value of an actuator to rock and drive a link 3 for moving a valve body is controlled so that a surface pressure reaches a specific value when a bleed valve body 5 is brought into contact with a surface 2a of a shroud. |
