WATER-COOLED TURBINE BLADE

摘要

WATER-COOLED TURBINE BLADE A gas turbine blade is shown having channels subjacent the surface for a coolant to flow therethrough from a radially inner inlet to a discharge port adjacent the blade tip. The channels include intermediate enlarged chambers wherein a portion of the coolant is permitted to vaporize, so that the smaller diameter coolant distributing channels remain substantially liquid full. The vapor from the chambers is exhausted at a position radially inwardly of the blade tip and preferably below the blade platform.