| 摘要 |
The present invention is a shroud tip clearance control ring for use in a gas turbine engine in which a rotary blade and a shroud ring form a gap that forms a blade outer air seal, and where the shroud ring is formed of two shroud segment halves, each shroud segment including a pin located near an end of the segment, the pins being slidably within slots formed on the casing, and a drive member moves along a direction in which the pins are moved along the slots to change a radius of the shroud ring in a way such that the radius remains substantially the same along a 360 degree angle of the shroud ring. The drive member includes two positions, one that places the shroud ring in a radially inward position, and another position that places the shroud ring in a radially outward position.
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