公开(公告)号：US20180010467A1

公开(公告)日：2018-01-11

申请号：US15203027

申请日：2016-07-06

Applicant: General Electric Company

Inventor： Xiuzhang James Zhang ,  Kevin Richard Kirtley ,  Lisa DeBellis

IPC: F01D5/22 ,  F01D5/20 ,  F01D11/08

CPC classification number: F01D5/225 ,  F01D5/20 ,  F01D11/08 ,  F05D2220/32 ,  F05D2240/24 ,  F05D2240/307 ,  F05D2240/55 ,  Y02T50/671 ,  Y02T50/673

Abstract: A turbine rotor blade that includes a tip shroud attached to the outboard tip of the airfoil. The tip shroud may include an axially and circumferentially extending planar component in which an inboard surface opposes an outboard surface, and a shroud edge that connects the inboard surface to the outboard surface and defines an outboard profile of the tip shroud. The tip shroud may include a seal rail protruding from the outboard surface of the tip shroud and a cutter tooth disposed on the seal rail. The cutter tooth may be formed as a circumferential section of the seal rail that is axially thickened. The seal rail may further include a leakage gap formed therethrough that is configured to increase a leakage level during operation.

公开(公告)号：US09708916B2

公开(公告)日：2017-07-18

申请号：US14335047

申请日：2014-07-18

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Xiuzhang James Zhang ,  Lisa DeBellis ,  Haiping Wang

IPC: F01D5/18

CPC classification number: F01D5/187 ,  F05D2230/11 ,  F05D2230/12 ,  F05D2230/21 ,  F05D2240/81 ,  Y02T50/673 ,  Y02T50/676

Abstract: A casted turbine bucket having at least one machined plenum including a plenum chamber and at least one plenum passage connected to a plenum inlet at a root portion of turbine bucket, and a method to feed cooling flow to the turbine bucket using the machined plenum that receives cooling flow from the root portion of the turbine bucket.

公开(公告)号：US10648346B2

公开(公告)日：2020-05-12

申请号：US15203027

申请日：2016-07-06

Applicant: General Electric Company

Inventor： Xiuzhang James Zhang ,  Kevin Richard Kirtley ,  Lisa DeBellis

IPC: F01D5/20 ,  F01D5/22 ,  F01D11/08

Abstract: A turbine rotor blade that includes a tip shroud attached to the outboard tip of the airfoil. The tip shroud may include an axially and circumferentially extending planar component in which an inboard surface opposes an outboard surface, and a shroud edge that connects the inboard surface to the outboard surface and defines an outboard profile of the tip shroud. The tip shroud may include a seal rail protruding from the outboard surface of the tip shroud and a cutter tooth disposed on the seal rail. The cutter tooth may be formed as a circumferential section of the seal rail that is axially thickened. The seal rail may further include a leakage gap formed therethrough that is configured to increase a leakage level during operation.