Scott M Hunter

US Patent:

20090313999, Dec 24, 2009

Filed:

May 13, 2008

Appl. No.:

12/120034

Inventors:

Scott Hunter - Fairfield OH, US
Andrew Dreikosen - Maineville OH, US
William Myers - West Chester OH, US

International Classification:

F02C 9/26
F02C 7/224
F02C 7/14

US Classification:

60772, 60730, 60 3908

Abstract:

A method and system for controlling fuel in a gas turbine engine including a fuel supply system channeling fuel to a combustor are provided. The system includes a first heat exchanger configured to transfer heat between a working fluid and a first cooling medium. The system also includes a second heat exchanger in series flow communication with the first heat exchanger wherein the second heat exchanger is configured to transfer heat between the working fluid and a second cooling medium. The system further includes a modulating valve configured to control the flow of at least one of the first and the second cooling media to maintain a temperature of the first or second cooling medium substantially equal to a predetermined limit.

US Patent:

20220349316, Nov 3, 2022

Filed:

Jul 14, 2022

Appl. No.:

17/864534

Inventors:

- Schenectady NY, US
John Joseph Rahaim - Cincinnati OH, US
Thomas Moniz - Loveland OH, US
Steven A. Ross - Wyoming OH, US
Joel Kirk - Middletown OH, US
Scott Hunter - Seattle WA, US
Daniel Fusinato - Cincinnati OH, US

International Classification:

F01D 11/18
F01D 11/02
F01D 25/00

Abstract:

A passive clearance control limits thermal expansion between stator components relative to rotor components. A control ring controls clearance in a passive manner and is located on or adjacent to stationary components which thermally expand during engine operation. The control ring is formed of material having low coefficient of thermal expansion such as CMCs (Ceramic Matrix Composites) and therefore limits, inhibits or restrains expansion of the adjacent stator components as temperatures increase. Limiting expansion of the stator component reduces rotor/stator clearances and limits parasitic leakage of fluid along the flow path through the engine core.

US Patent:

20160123172, May 5, 2016

Filed:

Jun 4, 2014

Appl. No.:

14/897823

Inventors:

- Schenectady NY, US
John Joseph RAHAIM - Cincinnati OH, US
Thomas MONIZ - Loveland OH, US
Steven A. ROSS - Wyoming OH, US
Joel KIRK - Middletown OH, US
Scott HUNTER - Seattle WA, US
Daniel FUSINATO - Cincinnati OH, US

International Classification:

F01D 11/18
F01D 25/00
F01D 11/02

Abstract:

A passive clearance control limits thermal expansion between stator components relative to rotor components. A control ring controls clearance in a passive manner and is located on or adjacent to stationary components which thermally expand during engine operation. The control ring is formed of material having low coefficient of thermal expansion such as CMCs (Ceramic Matrix Composites) and therefore limits, inhibits or restrains expansion of the adjacent stator components as temperatures increase. Limiting expansion of the stator component reduces rotor/stator clearances and limits parasitic leakage of fluid along the flowpath through the engine core.