| 摘要 |
<p>A gas turbine engine includes a compressor driven by a compression turbine, a combustor (116) receiving a part (A) of the compressed air, a compression turbine rotor disc (118), and a power turbine rotor disc (114). A minor part of the compressor air is fed to the combuster (116) through ports (123). The fuel is provided through port (117) and the exhaust gases (D) flow through the power turbine and then through the compression turbine. A major part (B) of the compressor air is bled from the compressor and directly bypassed successively through a zone (122 and 124), to a zone (128) of the power turbine rotor disc (114). The air (B) is fed for driving the power turbine rotor disc (114) into passages (126) of the power turbine blades (115), thereby cooling them, and is consequently ejected and mixed into the main exhaust gas stream (D).</p> |
