FLOW TRANSFER DEVICE FROM STATOR TO ROTOR AND COOLING AIR TRANSFER DEVICE FOR GAS TURBINE

摘要

PURPOSE: To provide an aerodynamically efficient flow transfer device from a static element to a rotor element. ;CONSTITUTION: A flow transfer device includes a means for transferring a flow from a static element to a rotor element. The flow transfer means so transfers the flow that the end of the exit flow is parallel to an exit plane that is vertical to rotation axis of the rotor, and substantially tangential to the rotational direction of the rotor. A cooling air flow transfer apparatus 12 is arranged between a stationary compressor and a turbine rotor, and includes an inducer 44 that has a hole 80 or a flow passage 77 for passing of the cooling airflow 36. The flow passage presents an acute angle to the exit plane and faces the tangential line direction of the rotational direction of the rotor. The flow passage has a cylindrical portion 98 leading to downstream flared outlet 84. The flared outlet is in from of an opening channel 100 having a back wall 120, and end portion of the back wall curves to be parallel to the exit plane of the inducer at the channel end.;COPYRIGHT: (C)1993,JPO