| 摘要 |
<p>A bypass valve capable of being normally operated by smoothly rotating a grid plate irrespective of the driving state of a gas turbine, comprising a frame installed so as to close a plurality of annular arranged compressed air inlets and having a plurality of first openings communicating with each other formed in the tail tubes of a combustor, the grid plate formed annularly as in the plurality of the tail tubes of the combustor, having a plurality of second openings formed at the positions corresponding to the first openings, and rotatably supported in the circumferential direction thereof, inside and outside rail parts provided on the inner and outer peripheral sides of the grid plate integrally with the frame, and a plurality of guide rollers installed on the grid plate and, according to the circumstances, allowed to abut on either of the inner and outer rail parts to assist the rotation of the grid plate.</p> |
