公开(公告)号：US11346225B2

公开(公告)日：2022-05-31

申请号：US16176259

申请日：2018-10-31

Applicant: General Electric Company

Inventor： Sylvain Pierre ,  Jinmei Zhang ,  Dustin James Hall ,  Marvin Luther Neeley

IPC: F01D5/14 ,  F01D9/04

Abstract: A turbine nozzle has an airfoil that includes a pressure side portion of a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z of a pressure side as set forth in Table I. The Cartesian coordinate values of X, Y, and Z are non-dimensional values from 0% to 100% convertible to dimensional distances by multiplying the Cartesian coordinate values of X, Y and Z by a height of the airfoil defined along the Z axis. The X and Y values of the pressure side are coordinate values that, when connected by smooth continuing arcs, define pressure side sections of the pressure side portion of the nominal airfoil profile at each Z coordinate value. The pressure side sections may be joined smoothly with one another to form the pressure side portion.

公开(公告)号：US11692447B1

公开(公告)日：2023-07-04

申请号：US17860504

申请日：2022-07-08

Applicant: General Electric Company

Inventor： Brian Stephen Gray ,  Richard Ryan Pilson ,  William Scott Zemitis ,  Dustin James Hall ,  Derek Kanoa Tan

IPC: F01D5/22 ,  F01D5/14

CPC classification number: F01D5/225 ,  F01D5/141 ,  F01D5/143 ,  F05D2220/30 ,  F05D2220/3212 ,  F05D2240/30 ,  F05D2250/74

Abstract: A tip shroud may include a platform to couple to an airfoil having a pressure side and a suction side. A front tip rail and a rear tip rail extend radially from the platform with each including a downstream side, an upstream side, and an origin(s). Each of the downstream side and the upstream side of the rear tip rail and the downstream side of the front tip rail has a shape having a nominal profile substantially in accordance with Cartesian coordinate values of X, Y, Z set forth in a respective table and originating at a selected origin. The Cartesian coordinate values are non-dimensional values of from 0% to 100% convertible to distances by multiplying the X, Y, Z values by a minimum rear tip rail X-wise extent expressed in units of distance. The X, Y, Z values are connected by lines to define each respective surface profile.