Patent ID: 6190130
Filing Date: 2001-02-20
Classification: F01D,F05B,F05D

Abstract:
A gas turbine moving blade platform comprising:a first cooling passage provided in said platform on a first side of the moving blade, said first cooling passage communicating at one end with a leading edge passage of the moving blade and opening at the other end in a first side end surface of said platform;a first cover closing the other end of said first cooling passage;a second cooling passage provided in said platform on a second side of the moving blade, said second cooling passage communicating at one end with the leading edge passage of the moving blade and opening at the other end in a second side end surface of said platform;a second cover closing the other end of said second cooling passage;a third cooling passage provided in said platform, said third cooling passage communicating at one end thereof with said first cooling passage and having another end thereof opening in a rear end surface of said platform;a fourth cooling passage provided in said platform, said fourth cooling passage communicating at one end thereof with said second cooling passage and having another end thereof opening in the rear end surface of said platform; anda plurality of cooling holes formed in the first side end surface of said platform, wherein each of said holes communicates with said third cooling passage which is provided on a dorsal side of the moving blade.