Curtis W Moeckel

US Patent:

20100290906, Nov 18, 2010

Filed:

Apr 23, 2010

Appl. No.:

12/766432

Inventors:

Curtis W. Moeckel - Cincinnati OH, US
Aspi Wadia - Cincinnati OH, US
David S. Clark - Cincinnati OH, US
Andrew Breeze-Stringfellow - Cincinnati OH, US

International Classification:

F01D 7/00

US Classification:

416 31

Abstract:

A system for detecting onset of a stall in a rotor is disclosed, the system comprising a plasma sensor spaced radially outwardly and apart from tips of a circumferential row of blades at a location on a static component that is between a first location and a second location wherein the first location is at a first distance of about 25% blade tip-chord length axially forward from the leading edge of a blade and the second location is at a second distance of about 25% blade tip-chord length axially aft from the trailing edge of a blade and wherein the plasma sensor is capable of generating an input signal corresponding to a flow parameter at a location near the tip of a blade and indicative of the onset of a stall and a correlation processor that generates a stability correlation signal.

US Patent:

20100205928, Aug 19, 2010

Filed:

Apr 23, 2010

Appl. No.:

12/766413

Inventors:

CURTIS W. MOECKEL - Cincinnati OH, US
Aspi Wadia - Cincinnati OH, US
David S. Clark - Cincinnati OH, US
Andrew Breeze-Stringfellow - Cincinnati OH, US

International Classification:

F04D 27/00

US Classification:

60 39091

Abstract:

A system for detecting onset of a stall in a rotor is disclosed, the system comprising a sensor spaced radially outwardly and apart from tips of a circumferential row of blades at a location on a static component that is between a first location and a second location wherein the first location is at a first distance of about 25% blade tip-chord length axially forward from the leading edge of a blade and the second location is at a second distance of about 25% blade tip-chord length axially aft from the trailing edge of a blade and wherein the sensor is capable of generating an input signal corresponding to a flow parameter at a location near the tip of a blade and indicative of the onset of a stall and a correlation processor that generates a stability correlation signal.

US Patent:

20170268537, Sep 21, 2017

Filed:

Mar 15, 2016

Appl. No.:

15/070418

Inventors:

- Schenectady NY, US
Peter John Wood - Loveland OH, US
Brian Richard Green - West Chester OH, US
Steven Mitchell Taylor - Cincinnati OH, US
Curtis Moeckel - Cincinnati OH, US
Mark Joseph Frisch - Mason OH, US
Joseph Michael Bruni - Loveland OH, US

International Classification:

F04D 29/66
F04D 29/54
F01D 9/04

Abstract:

A circular row of non-uniformally spaced vanes includes only one first group and only one second group of adjacent vanes, unequal first and second spacing between adjacent vanes in the first and second groups, and first spacing greater than second spacing. An embodiment with second group including only three adjacent vanes. Second spacing may be about 25%-35% smaller than a nominal uniform spacing used as a design parameter for designing spacing of the non-uniformly spaced stator vanes. Circular row may be sectored. A gas turbine engine section may include one or more rings or circular rows of fixed and/or variable non-uniformally spaced vanes. Method for designing non-uniform vane spacing for circular row includes determining nominal uniform spacing and forming first spacing and second spacing from nominal uniform spacing of vanes.

US Patent:

20170254274, Sep 7, 2017

Filed:

Mar 3, 2016

Appl. No.:

15/059716

Inventors:

- Schenectady NY, US
Curtis William Moeckel - Cincinnati OH, US
David William Fasig - Liberty Township OH, US
Carlos Ivan Flores - Liberty Township OH, US

International Classification:

F02C 9/18

Abstract:

Gas turbine engine compressor bleed assembly includes annular bleed plenum between annular outer and inner casings circumscribing compressor flowpath of compressor, upstream and downstream bleed ports disposed through inner casing and between compressor flowpath and plenum at upstream and downstream stages. Bleed path extends from downstream bleed port through bleed plenum and out bleed outlet disposed through outer casing. Autonomously actuated valve such as poppet valve disposed in bleed path or downstream bleed port. Autonomously actuated or poppet valve may be set to open at take-off and/or climb. Bleed outlet may be customer and domestic or engine bleed outlet disposed through outer casing and in fluid bleed air communication with bleed plenum. Another assembly may include annular forward and aft bleed outlets connected to plenums. Bleed path extends from downstream bleed port through plenums and out forward bleed outlet.