Anthony Libera Phones & Addresses
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41 Kelly Ln, Tempe, AZ 85284 (480) 785-1704
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Newark, DE
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Tucson, AZ
Work
Position:
Professional/Technical
Education
Degree:
Graduate or professional degree
Emails
c***7@aol.com
Publications
Us Patents
Method To Control Starter/Generator Cooling Fuel Flow During Engine Starting
View pageUS Patent:
7484522, Feb 3, 2009
Filed:
Jan 21, 2005
Appl. No.:
11/040745
Inventors:
Chris D. Eick - Phoenix AZ, US
Mitchell J. Laidlaw - Tempe AZ, US
Anthony C. Libera - Tempe AZ, US
Donald M. Purcell - Phoenix AZ, US
Mitchell J. Laidlaw - Tempe AZ, US
Anthony C. Libera - Tempe AZ, US
Donald M. Purcell - Phoenix AZ, US
Assignee:
Honeywell International Inc. - Morristown NJ
International Classification:
F02M 37/00
US Classification:
137 14, 137488, 13761421, 123514
Abstract:
The present invention provides a relatively simple way to automatically turn on and off the fuel to a starter/generator cooling system during engine start. The present invention takes advantage of a fuel pressure rise provided by an engine fuel boost pump during the period from engine start to engine idle conditions. This pressure rise is used to stroke a shutoff valve in a fuel return to tank valve (FRTTV), which shuts off the starter generator cooling fuel flow. This shutoff occurs automatically with no other external input from, for example, an engine controller. A check valve is also included that prevents back flow through the FRTTV in the event of an engine start with no aircraft pumps running.
Gas Turbine Engine Bleed Air Power Assist System And Method
View pageUS Patent:
20060010875, Jan 19, 2006
Filed:
Jul 16, 2004
Appl. No.:
10/893035
Inventors:
Timothy Mahoney - Chandler AZ, US
Mitchell Laidlaw - Tempe AZ, US
Anthony Libera - Tempe AZ, US
Mitchell Laidlaw - Tempe AZ, US
Anthony Libera - Tempe AZ, US
International Classification:
F02C 6/00
US Classification:
060772000, 060802000
Abstract:
A bleed air power assist system is coupled to a gas turbine engine that includes a high pressure turbine, a low pressure turbine, and an electrical generator driven by the high pressure turbine. The bleed air power assist system selectively bleeds air discharged from the high pressure turbine and supplies it to an air turbine that is also coupled to the generator. Thus, the system selectively reduces the power extracted from the high pressure turbine. This, coupled with the bleed air that is diverted from the low pressure turbine, allows the low pressure spool to run at lower speeds when high engine thrust is not needed or desired, but when the generator is still needed to supply high electrical loads.