William R Liebke

US Patent:

46061908, Aug 19, 1986

Filed:

Oct 4, 1985

Appl. No.:

6/783808

Inventors:

Walter Greene - South Windsor CT
William R. Liebke - Vernon CT

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

F02C 900
F02G 300

US Classification:

60 3923

Abstract:

A self-actuating nozzle guide vane assembly for a turbine type power plant fuel nozzle increases airflow during the higher power regimes. The fuel nozzle inlet guides employ primary and secondary swirlers where the primary swirlers continuously deliver compressor air around the fuel nozzles and the secondary swirlers deliver compressor air solely when the inlet temperature goes above a predetermined threshold value in another embodiment.

US Patent:

57022887, Dec 30, 1997

Filed:

Aug 30, 1995

Appl. No.:

8/521199

Inventors:

William R. Liebke - Vernon CT
David R. Dawson - East Hartford CT
Mark A. Fredette - Windsor CT
Mark B. Goodstein - Windsor Locks CT

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B24B 100

US Classification:

451 36

Abstract:

A method of removing excess MCrAlY overlay coating from within a cooling hole of an aluminide coated gas turbine engine component is disclosed. The method includes providing a gas turbine engine component having an internal surface (4), an outer surface (6) and a root end (8). The component also includes at least one cooling hole (10) extending from the internal surface (4) to the outer surface (6), wherein the internal surface(4) of the component is coated with a corrosion resistant aluminide coating. An MCrAlY overlay coating (12) is also located on the outer surface (6) and inside a portion of the cooling hole (10). An abrasive slurry is forced into the gas turbine engine component from the outside of the component to the inside of the component, through the cooling hole (10), such that the slurry flows through the internal surface (4) of the component and removes at least a portion of the overlay coating (12) located inside the cooling hole (10) without adversely affecting the internal surface (4) of the component. The abrasive slurry subsequently exits the component through the root end (8).

US Patent:

45426228, Sep 24, 1985

Filed:

Jul 22, 1982

Appl. No.:

6/400787

Inventors:

Walter Greene - South Windsor CT
William R. Liebke - Vernon CT

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

F02C 300
B05B 710

US Classification:

60 3923

Abstract:

A self-actuating nozzle guide vane assembly for a turbine type power plant fuel nozzle increases airflow during the higher power regimes. The fuel nozzle inlet guides employ primary and secondary swirlers where the primary swirlers continuously deliver compressor air around the fuel nozzles and the secondary swirlers deliver compressor air solely when the pressure drop across the front end of the burner reaches a predetermined level in one embodiment or the inlet temperature goes above a predetermined threshold value in another embodiment.