公开(公告)号：US20180209278A1

公开(公告)日：2018-07-26

申请号：US15745165

申请日：2015-07-31

Applicant: General Electric Company

Inventor： Zachary James TAYLOR ,  Lucas Seth WEDMORE ,  Hiteshkumar Rameshchandra MISTRY

IPC: F01D5/18 ,  F01D5/22 ,  F01D11/08

CPC classification number: F01D5/187 ,  F01D5/225 ,  F01D11/08 ,  F05D2220/32 ,  F05D2240/307 ,  F05D2260/202 ,  Y02T50/671 ,  Y02T50/673 ,  Y02T50/676

Abstract: A rotor blade (16) for a turbine of a gas turbine that includes an airfoil (25). The airfoil may have a leading edge, a trailing edge, an outboard tip, and an inboard end where the airfoil attaches to a root configured to couple the turbine blade to a rotor disc. The airfoil (25) may include a tip shroud (55) at an outboard tip. The rotor blade may have a cooling configuration that includes: elongated cooling channels (33) for receiving and directing a coolant through the airfoil (25); and branching passages (75) formed through the tip shroud (55), each of which elongates between a connection with one of the cooling channels (33) and an outlet port (37) formed on a surface of the tip shroud (55). The branching passages (75) may have a canted orientation relative the outboard surface of the tip shroud (55).