Gang G Liu

US Patent:

20130336777, Dec 19, 2013

Filed:

Jun 19, 2012

Appl. No.:

13/526863

Inventors:

Matthew John McKeever - Greer SC, US
Gang Liu - Simpsonville SC, US
Umesh Garg - Bangalore, IN
Ryan Wesley Murphy - Charlotte NC, US
Edward Charles Schurr - Simpsonville SC, US
Michael James Dutka - Simpsonville SC, US
Govindarajan Rengarajan - Simpsonville SC, US
Paul Griffin Delvernois - Greer SC, US
Ya-Tien Chiu - Greer SC, US
Roger Claude Beharrysingh - Simpsonville SC, US
Marc Edward Blohm - Greenville SC, US
SenthilKumar Narendran - Chennai, IN

International Classification:

F03B 11/02

US Classification:

4152081, 416223 R

Abstract:

An article of manufacture having a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in a scalable table, the scalable table selected from the group of tables consisting of TABLES 1-11, wherein the Cartesian coordinate values of X, Y and Z are non-dimensional values convertible to dimensional distances by multiplying the Cartesian coordinate values of X, Y and Z by a number, and wherein X and Y are coordinates which, when connected by continuing arcs, define airfoil profile sections at each Z height, the airfoil profile sections at each Z height being joined with one another to form a complete airfoil shape.

US Patent:

20130336780, Dec 19, 2013

Filed:

Jun 19, 2012

Appl. No.:

13/526941

Inventors:

Matthew John McKeever - Greer SC, US
Gang Liu - Simpsonville SC, US

International Classification:

F03B 11/02

US Classification:

4152081, 416223 R

Abstract:

An article of manufacture having a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in scalable Table 1 wherein the Cartesian coordinate values of X, Y and Z are non-dimensional values convertible to dimensional distances by multiplying the Cartesian coordinate values of X, Y and Z by a number, and wherein X and Y are coordinates which, when connected by continuing arcs, define airfoil profile sections at each Z height, the airfoil profile sections at each Z height being joined smoothly with one another to form a complete airfoil shape.

US Patent:

20130343902, Dec 26, 2013

Filed:

Jun 22, 2012

Appl. No.:

13/530355

Inventors:

Raymond Joseph Lecuyer - Taylors SC, US
John Herbert Dimmick - Greenville SC, US
Ashok Kumar Haveri Murigeppa - Bangalore, IN
Gang Liu - Simpsonville SC, US

Assignee:

GENERAL ELECTRIC COMPANY - Schenectady NY

International Classification:

F01D 25/28

US Classification:

416244 A

Abstract:

A bolted flange assembly for securing rotating components in a gas turbine. The bolted flange assembly includes two rotating wheels, each wheel having at least one arm extending towards a spacer positioned partially between the two rotating wheels, wherein each arm has a flange surface facing the spacer. Either each flange surface or a surface of the spacer is conical, i.e., non-perpendicular to a centerline of the gas turbine, such that in an unconstrained state, a heel end of each flange surface is closer to the spacer than a toe end of each flange surface; and a bolt extending through the arm of each rotating wheel and the spacer.

US Patent:

20220220853, Jul 14, 2022

Filed:

Mar 31, 2022

Appl. No.:

17/657409

Inventors:

- Schenectady NY, US
Gang Liu - Simpsonville SC, US

International Classification:

F01D 5/02
B23C 3/18

Abstract:

A turbine rotor includes a rotor body and a balancing weight slot defined in an exterior circumference of the body. The balancing weight slot has a first axial width and a first radially outward facing surface at a first radial distance from a rotor axis. The rotor also includes a balancing weight entry port defined in a portion of the exterior circumference of the rotor body and aligned with the balancing weight slot. The balancing weight entry port has a second axial width greater than the first axial width and a second radially outward facing surface at a second radial distance from the axis of the rotor body that is smaller than the first radial distance. A method may include machining the entry port into the rotor with a tool. The method may be applied to a new rotor, or to remove cracks initiating from a previous entry port.