Ajay L Gupta

US Patent:

7389643, Jun 24, 2008

Filed:

Jan 31, 2005

Appl. No.:

11/045057

Inventors:

Derrick Walter Simons - Greer SC, US
Ajay Kumar Gupta - Alpharetta GA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F23R 3/42

US Classification:

60772, 60737, 60752

Abstract:

A double wall venturi chamber having a converging section, a diverging section and a cylindrical section wherein said chamber defines a venturi zone in which compressed air, fuel and combustion products flow downstream through converging section, diverging section and cylindrical section, and has a cooling gas passage between the walls of the venturi chamber, a least one cooling gas inlet in an outlet wall of the venturi chamber, and at least one cooling gas outlet in an inner wall of the venturi chamber, wherein said cooling gas outlet is in at least one of the diverging and the cylindrical section, and the outlet is downstream of the at least one cooling gas inlet and upstream of an axial end of the chamber.

US Patent:

20110247340, Oct 13, 2011

Filed:

Apr 13, 2010

Appl. No.:

12/759042

Inventors:

Predrag POPOVIC - Greenville SC, US
Krishna Kumar Venkataraman - Simpsonville SC, US
Derrick Walter Simons - Greer SC, US
Ajay Kumar Gupta - Alpharetta GA, US
William Kirk Hessler - Philadelphia PA, US
Jeffrey Lebegue - Simpsonville SC, US

International Classification:

F23R 3/42

US Classification:

60752

Abstract:

A combustion liner assembly for a gas turbine includes an outer liner, the outer liner having a flange at a forward end. An inner liner is disposed within the outer liner. The inner liner has a first inner wall. A venturi includes a second inner wall, a venturi throat, and the first inner wall of the inner liner. A slip joint is connected to the second inner wall. The slip joint receives the flange of the outer liner. Alternatively, or additionally, the combustion liner assembly includes a slip joint between the inner or outer liner and an aft section.