| 主权项 |
1. A seal segment for a shroud ring of a rotor of a gas turbine engine having a principal axis of rotation, the seal segment being positioned, in use, radially adjacent the rotor, the seal segment comprising:
first and second circumferentially spaced passageways each of which extends in fore and aft directions in relation to the principal axis, a first support bar within the first passageway, and a second support bar within the second passageway, the first and second support bars each being mountable to complementary formations provided by a casing of the engine, wherein the first passageway is configured such that the seal segment is fixed relative to the first support bar in the radial and circumferential directions in relation to the principal axis, and the second passageway is configured such that the seal segment is fixed relative to the second support bar in the radial direction but allows relative movement of the seal segment and the second support bar in the circumferential direction, the first and second support bars each project from a front face and a rear face of the seal segment for mounting thereat to the complementary formations provided by the casing, and ends of the first and second support bars are received within recessed portions in at least one of the front face and the rear face of the seal segment. |
