Thomas A Leen

US Patent:

6453671, Sep 24, 2002

Filed:

Jan 13, 2000

Appl. No.:

09/482668

Inventors:

Thomas A. Leen - Cincinnati OH
Robert B. Walmsley - Moscow OH

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02C 100

US Classification:

60748, 23953312, 239339, 239408, 60740

Abstract:

Service life is improved in a swirler assembly including a primary swirler and a secondary swirler having a venturi formed thereon and being disposed in engagement with the primary swirler. First and second rails are formed on the secondary swirler and are positioned to engage the primary swirler and thereby prevent relative rotation of the primary and secondary swirlers.

US Patent:

6655146, Dec 2, 2003

Filed:

Jul 31, 2001

Appl. No.:

09/919028

Inventors:

Ella Christine Kutter - Miamisburg OH
Thomas Anthony Leen - Cincinnati OH
Daniel Dale Brown - Fairfield OH
Craig Douglas Young - Maineville OH
Gilbert Farmer - Cincinnati OH
Mohammad Ehteshami - Mason OH

Assignee:

General Electric Company - Schenectady NY

International Classification:

F23R 306

US Classification:

60752, 60754, 60755, 60757

Abstract:

A combustor liner has an annular shell which includes a first portion and a second portion. The first portion is provided with slot film cooling and the second portion is provided with multi-hole film cooling. The multi-hole cooling portion can be located either forward or aft of the slot film cooling portion, depending on the nature of the combustor that the liner is to be used in. In one possible embodiment, the liner includes a first annular panel, a second annular panel section joined at its forward end to the aft end of the first panel section, and a third annular panel section being joined at its forward end to the aft end of the second panel section. At least one of the panel sections has multi-hole film cooling and at least one other of the panel sections has slot film cooling.

US Patent:

6986253, Jan 17, 2006

Filed:

Jul 16, 2003

Appl. No.:

10/620926

Inventors:

Thomas A. Leen - Cincinnati OH, US
Steve Steffens - Cincinnati OH, US
Craig Douglas Young - Maineville OH, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F23R 3/02

US Classification:

60772, 60752

Abstract:

A method facilitates the operation of a gas turbine engine that includes a combustor including a combustion chamber. The method comprises supplying fuel to the combustion chamber, and directing compressed airflow through a combustor dome assembly that includes a splashplate and a unitarily formed flare cone, such that at least a portion of the compressed airflow is channeled axially downstream through at least one cooling passage defined between the flare cone and the splashplate for cooling of the dome assembly.

US Patent:

7104066, Sep 12, 2006

Filed:

Aug 19, 2003

Appl. No.:

10/604809

Inventors:

Thomas Anthony Leen - Cincinnati OH, US
John Robert Staker - Cincinnati OH, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F01C 1/00

US Classification:

60740, 60748

Abstract:

A unitary swirler assembly that provides improved service life, having a ferrule body and a unitary swirler body. The unitary swirler body has oppositely-directed primary swirler passages and secondary swirler passages. A pair of rails formed on the unitary swirler body engage the ferrule body to limit relative movement, and prevent relative rotation, of the ferrule body and the unitary swirler body.

US Patent:

6427435, Aug 6, 2002

Filed:

May 20, 2000

Appl. No.:

09/575415

Inventors:

David Bruce Patterson - Mason OH
Thomas Anthony Leen - Cincinnati OH

Assignee:

General Electric Company - Schenectady NY

International Classification:

F23R 314

US Classification:

60 3932, 60748

Abstract:

A retainer segment is provided for a swirler assembly having first and second members, such as a primary and secondary swirler or a swirler body and floating ferrule, disposed in sliding engagement with each other. The two members are maintained in sliding engagement by two of the retainer segments which are joined to the second member and engage the first member. Each retainer segment is an arcuate member defining inner and outer curved edges and first and second ends. Each end has a concave cutout formed therein to reduce weld joint and bending stresses that occur from the forced vibration of the retainer segments.