Gregory Eugene Chetta

US Patent:

6393331, May 21, 2002

Filed:

Dec 16, 1998

Appl. No.:

09/212922

Inventors:

Gregory E. Chetta - Palm Beach Gardens FL
Charles A. Ellis - Stuart FL
Joey C. Hayes - Palm Beach Gardens FL
Daniel E. Kane - Tolland CT
William D. Neff - Lebanon CT
Joseph A. Oblak - West Palm Beach FL
Susan A. Rose - Palm Beach Gardens FL
Kevin L. Worley - Palm Beach Gardens FL

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

G06F 1900

US Classification:

700 97, 700104, 700117, 703 1

Abstract:

A method of designing an outer air seal for the turbine blades of a gas turbine engine utilizes a knowledge-based product model software program for generating a parametric, three-dimensional, geometric model of the air seal. The product model software program is embodied in a knowledge-based engineering system. The model is created by the program through user selection of various structural feature options available for the air seal. The product model software program uses its internal knowledge base of configuration dependent parameter relationships and rules to design the model. Various types of analyses may then be run to validate the model. The model may be changed, if necessary, as a result of the analyses. The air seal model output from the product model software program is in a file format that defines the topology and dimensions of the geometry of the air seal. Other software programs may then use this product model output file in various ways, such as to re-generate the model for use in a CAD system.

US Patent:

6587741, Jul 1, 2003

Filed:

Mar 7, 2000

Appl. No.:

09/520085

Inventors:

Gregory E. Chetta - Palm Beach Gardens FL
John J. Marra - Glastonbury CT
Donna R. Dickerson - Jupiter FL

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

G06F 1900

US Classification:

700 97, 700104, 700117, 703 1, 706919

Abstract:

A method and a system for designing a spline coupling, comprising the steps of creating signals representing a spline coupling knowledge base of information having a plurality of rule signals with respect to a corresponding plurality of parameter signals of associated elements of the spline coupling, wherein the spline coupling knowledge base comprises at least one data value signal for each one of the plurality of rule signals. Included are the steps of entering a desired data value signal for a selected one of the plurality of parameter signals of an associated element of the spline coupling, and comparing the entered desired data value signal for the selected one of the plurality of parameter signals with the corresponding at least one data value signal in the spline coupling knowledge base for the corresponding one of the plurality of rule signals. The steps also include creating signals representative of a geometric representation of the selected one of the plurality of parameter signals of the associated element of the spline coupling if the result of the step of comparing is such that the entered desired data value signal for the selected one of the plurality of parameter signals is determined to have a first predetermined relationship with respect to the corresponding at least one data value signal in the spline coupling knowledge base for the selected one of the plurality of rule signals.

US Patent:

6625507, Sep 23, 2003

Filed:

Feb 23, 2000

Appl. No.:

09/511549

Inventors:

Donna R. Dickerson - Jupiter FL
Gregory E. Chetta - Palm Beach Gardens FL
John J. Marra - Glastonbury CT

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

G06F 1900

US Classification:

700 97, 700182, 703 1

Abstract:

A method and system for designing a low pressure turbine shaft comprising the steps of creating a low pressure turbine shaft knowledge base of information. The knowledge base has a plurality of design rule signals with respect to a corresponding plurality of parameter signals of associated elements of a low pressure turbine shaft, wherein the knowledge base comprises at least one data value signal for each one of the plurality of design rule signals. The steps also include entering a desired data value signal for a selected one of the plurality of parameter signals of an associated element of the low pressure turbine shaft and comparing the entered desired data value signal for the selected one of the plurality of parameters with the corresponding at least one data value signal in the knowledge base for the corresponding one of the plurality of design rule signals. If the result of the step of comparing is such that the entered desired data value signal for the selected one of the plurality of parameter signals is determined to have a first predetermined relationship with respect to the corresponding at least one data value signal in the knowledge base for the selected one of the plurality of design rule signals, create signals representative of a geometric representation of the selected one of the plurality of parameter signals of the associated element of the low pressure turbine shaft.

US Patent:

6944580, Sep 13, 2005

Filed:

Jun 30, 2000

Appl. No.:

09/608620

Inventors:

Karl Blume - Hebron CT, US
Dennis L. Mackey - Stuart FL, US
Amy U. Serwinowski - Jupiter FL, US
David W. Leung - Hollywood FL, US
Charlie Quackenbush - Tyler TX, US
Jeffrey Simpson - Palm Beach Gardens FL, US
Duncan C. Meyers - Bolton CT, US
Frank Shurick - Vernon CT, US
Henry Huizinga - Palm Beach Gardens FL, US
Robert Rozelle - Farmington Hills MI, US
Gregory E. Chetta - Palm Beach Gardens FL, US
Jonathan Schmid - Palm Beach Gardens FL, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

G06F017/50

US Classification:

703 1, 700 96, 700 97, 700 98, 700103, 700104, 700117, 703 6, 703 8, 706 45

Abstract:

A method for designing an engine case static structure of a gas turbine engine includes creating signals representing an engine case static structure knowledge base of information. The knowledge base has a plurality of design rule signals with respect to a corresponding plurality of parameter signals of associated elements of an engine case static structure, wherein the knowledge base comprises at least one data value signal for each of the plurality of design rule signals. A desired data value signal is entered for a selected one of the plurality of parameter signals of an associated element of the engine case static structure and compared to the corresponding data value signal in the knowledge base for the corresponding one of the plurality of design rule signals. Signals representative of a geometric representation of the selected parameter signal may be created.

US Patent:

6973419, Dec 6, 2005

Filed:

Mar 2, 2000

Appl. No.:

09/517567

Inventors:

Thomas B. Fortin - Lauderhill FL, US
Gregory E. Chetta - Palm Beach Gardens FL, US
David W. Leung - Hollywood FL, US
Duncan C. Meyers - Bolton CT, US
Keith C. Belson - Lawrence SC, US
John V. Diaz - Southington CT, US
Thomas E. Holladay - Lake Park FL, US
Scott A. Ladd - Coventry CT, US
Randall G. McKinney - Ellington CT, US
Sergio Rinella - West Palm Beach FL, US
Andreas Sadil - Newington CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

G06G007/48

US Classification:

703 8, 60757, 60752, 60755, 60756, 60760, 701477, 477 30

Abstract:

A method and system for designing an impingement film floatwall panel system for a combustion chamber for a gas turbine engine comprising the steps of creating an impingement film floatwall panel knowledge base of information. The knowledge base has a plurality of design rule signals with respect to a corresponding plurality of parameter signals of associated elements of impingement film floatwall panels for a combustion chamber, wherein the knowledge base comprises at least one data value signal for each one of the plurality of design rule signals. The steps also include entering a desired data value signal for a selected one of the plurality of parameter signals of an associated element of the impingement film floatwall panels and comparing the entered desired data value signal for the selected one of the plurality of parameters with the corresponding at least one data value signal in the knowledge base for the corresponding one of the plurality of design rule signals. If the result of the step of comparing is such that the entered desired data value signal for the selected one of the plurality of parameter signals is determined to have a first predetermined relationship with respect to the corresponding at least one data value signal in the knowledge base for the selected one of the plurality of design rule signals, create signals representative of a geometric representation of the selected one of the plurality of parameter signals of the associated element of the impingement film floatwall panels.

US Patent:

55870686, Dec 24, 1996

Filed:

Nov 15, 1994

Appl. No.:

8/340498

Inventors:

Wilho V. Aho - West Palm Beach FL
Stephen R. Jones - Tequesta FL
Gregory E. Chetta - Palm Beach Gardens FL
Terry H. Strout - Palm City FL

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B01D 1900
B01D 2126

US Classification:

210188

Abstract:

The deaerator includes a chamber that includes vortex generators that centrifuge the oil/air to separate the components and the chamber may operate in all attitudes. In addition wake separators mounted in the inlet of the chamber remove a large percentage of the air from the oil prior to entering the chamber and reintroduce the separated air component in the air removal tube. A dam in the air removal tube is located downstream of the inlet of the wake separated air to assure no oil is extracted from the air tube leaving the chamber. The wake separator consists of one or more tubes extending transversely to the flow of the oil/air stream and the air is removed through rearwardly facing apertures formed in the tube(s).

US Patent:

51144468, May 19, 1992

Filed:

Feb 15, 1991

Appl. No.:

7/656381

Inventors:

Rodney L. Giersdorf - Port St. Lucie FL
Alfred Peduzzi - Juno Isles FL
Allan D. Krul - Jupiter FL
Stephen R. Jones - Jupiter FL
Gregory E. Chetta - Palm Beach Gardens FL

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B01D 4514

US Classification:

55345

Abstract:

A deoiler for a jet engine which separates oil droplets from an air/oil mixture in three stages, the first stage employing external radial extending vanes having a curved inducer, the second stage employing vanes which are laid over in the direction of rotation of the deoiler, the windows through which the air/oil mixture flows from the second stage to the third stage being contoured to provide a maximum path for oil droplets to the second stage bleed holes.