Richard J Tiernan

age ~78

from Hobe Sound, FL

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Richard Tiernan Phones & Addresses

Case Tying Means For Gas Turbine Engine
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US Patent:

51802813, Jan 19, 1993
Filed:

Feb 3, 1992
Appl. No.:

7/830518
Inventors:

Joseph C. Burge - Palm Beach Gardens FL
Richard J. Tiernan - Hobe Sound FL
Assignee:

United Technologies Corporation - Hartford CT
International Classification:

F01D 904
US Classification:

4152092
Abstract:

The segmented inner case supporting the stator vanes of the compressor is tied to an axially split outer case of a gas turbine engine by utilizing a segmented ring-like element forming a rail with bosses at either end and intermediate the ends and having a relatively thin resilient body between bosses capable of flexing in response to thermal loads. Bolts extending through the outer case are threaded into the bosses. This arrangement facilitates the assembly and disassembly of the compressor section.

Coupling Attachment
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US Patent:

48042889, Feb 14, 1989
Filed:

Dec 15, 1987
Appl. No.:

7/133474
Inventors:

Richard J. Tiernan - Hobe Sound FL
Assignee:

United Technologies Corporation - Hartford CT
International Classification:

F16D 100
US Classification:

403 24
Abstract:

Two shafts 12, 14 are secured axially with bolts 58 through flanges 22 and 32. Coupling 42 is splined to the shafts and resists bending by interaction of bearing surfaces 46, 44, 48 and 50. Threads 66 on one end of the shaft and an inwardly extending flange 68 on the coupling provide a means for removing a shaft without placing axial loading on bearing 18. Either shaft may be removed while leaving the coupling 42 in place to protect the bearing compartment. Axial loading is taken by bolts 58, torque loading by splines 30, 40 and bending moment taken by the interacting surfaces.

Segmented Stator Vane Seal
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US Patent:

51584301, Oct 27, 1992
Filed:

Nov 1, 1991
Appl. No.:

7/785901
Inventors:

William E. Dixon - Jensen Beach FL
Joseph C. Burge - Palm Beach Gardens FL
Richard J. Tiernan - Hobe Sound FL
Lee E. Hensen - Lake Park FL
Assignee:

United Technologies Corporation - Hartford CT
International Classification:

F01D 2524
US Classification:

415134
Abstract:

A "dog bone" in cross section shaped seal mounted in adjacent grooves of segmented stator vanes span the axial extent covering a single casted three rows of vanes. The outer diameter shroud of the stator vane defines a portion of an enclosed cavity subjected to leakage flow in and out of the gas path where the flow reverses at some axial extent of the seal such that the forces acting at different locations on the seal reverses. In a preferred embodiment, the bulbous ends of the "dog bone" are solid coated metallic material.

Rotor Trim Balancing
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US Patent:

51671670, Dec 1, 1992
Filed:

Nov 18, 1991
Appl. No.:

7/793892
Inventors:

Richard J. Tiernan - Hobe Sound FL
Bruce V. Lyon - Palm Beach Gardens FL
Assignee:

United Technologies Corporation - Hartford CT
International Classification:

F16F 1522
US Classification:

74573R
Abstract:

Rotating machinery construction employing one or more split balance rings within a rotating element the circumferential position of a ring being adjustable through associated casing structure without disassembly of the machinery to permit rebalancing or trim balancing of the rotor element.

Compressor Case With Controlled Thermal Environment
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US Patent:

51277948, Jul 7, 1992
Filed:

Sep 12, 1990
Appl. No.:

7/581220
Inventors:

Joseph C. Burge - Palm Beach Gardens FL
Richard J. Tiernan - Hobe Sound FL
Assignee:

United Technologies Corporation - Hartford CT
International Classification:

F01D 1100
US Classification:

4151733
Abstract:

The thermal environment to which the engine's compressor case is subjected is controlled and the coefficient of expansion selected for the stator and rotor components are suitably matched to improve engine performance by reducing radial clearances during part power engine operations. A thermal barrier around the engine case by virtue of a heat shield attached to the customary case flanges and the coaxially mounted spaced stator vanes forming an inner case defining cavities sandwiching the engine case and holds the metal temperature at a value higher than would otherwise be provided. The thermal barrier serves to isolate the outer case from the engine's fan discharge air and the engine's core gas path.