Jon Michael Vishnauski

US Patent:

7431557, Oct 7, 2008

Filed:

May 25, 2006

Appl. No.:

11/441258

Inventors:

William Lee Herron - Cincinnati OH, US
Matthew William Wiseman - Fairfield OH, US
Jon Michael Vishnauski - Loveland OH, US
Brian Edward Krupp - Liberty Township OH, US
Ronald George Maruscik - Lebanon OH, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

G06F 19/00

US Classification:

415 1, 415127

Abstract:

A method to compensate for blade tip clearance deterioration between rotating blade tips and a surrounding shroud in an aircraft gas turbine engine includes determining one or more variables based on at least one or more moving averages of one or more engine operating parameters respectively averaged over a fixed number of operational engine flight cycles and adjusting a flow rate of thermal control air to counter the blade tip clearance deterioration based on the one or more variables. The engine operating parameters may include running number of engine cycles, takeoff and cruise exhaust gas temperature margins, a cruise turbine efficiency, takeoff and cruise maximum turbine speeds, a cruise fuel flow. Some or all of the variables may be differences between the moving averages and corresponding baselines of the engine operating parameters respectively or the variables may all be moving averages. The flow rate may be adjusted incrementally.

US Patent:

50822063, Jan 21, 1992

Filed:

Jul 25, 1988

Appl. No.:

7/223826

Inventors:

Paul H. Kutschenreuter - Loveland OH
Jon M. Vishnauski - Loveland OH

Assignee:

General Electric Company - Cincinnati OH

International Classification:

B64D 3302
F02C 704

US Classification:

244 53B

Abstract:

A hypersonic inlet and a hypersonic engine and flight vehicle having such an inlet. The three-dimensionally-swept inlet has an upper member with a caret-shaped lower surface portion producing a two-dimensional wedge flow below such lower surface portion. The inlet also has a lower member having two inverted and transposed semi-caret-shaped upper surface portions producing a two-dimensional wedge flow above such upper surface portions. An inlet aft portion connects together the upper and lower members and has an orifice defining the engine inlet throat which at least partially receives the two-dimensional flows.

Address:

6252 Holw Wood Cir, Loveland, OH 45140

VIN:

1FTFW1EV8AFC69865

Make:

FORD

Model:

F-150

Year:

2010