F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
F01D 11/02 (2006.01) F16J 15/32 (2006.01)
Patent
CA 2266831
The invention relates to a structure of a seal ring separating surface for a gas turbine, which sets a shape of an end portion in the separation surface to a perpendicular cutting surface and reduces a leaking amount of a sealing air. A seal ring holding ring (1) within a stationary blade fixes brush seals (3, 4) to an upstream side by bolts (5, 6) respectively, so as to form a seal with respect to a rotor disc (69). Further, it fixes and supports a seal ring (2) to a downstream side by a bolt (7) so as to constitute a seal with respect to a seal portion (8) in a disc (69) side. The brush seals (3, 4) and the seal ring (2) are structured such as to have a circular ring shape and a separation construction, and each of the separation pieces has a gap, so that a sealing air leaks to a downward side from an upward side through the gap, however, since the separation piece end portion is formed in a perpendicular cutting surface and a shape of the gap is formed in a bypass passage, a resistance of an air flow passage is increased and a leaking air amount is reduced.
Ai Toshishige
Yuri Masanori
Mitsubishi Heavy Industries Ltd.
Riches Mckenzie & Herbert Llp
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