The present invention relates generally to telemetry systems in a high-temperature environment, such as that of a combustion turbine engine, and, more particularly, to a wireless power-receiving assembly for electrically powering circuitry of the telemetry system, such as may be disposed on a movable component of the turbine engine.
Turbine engines, such as gas turbine engines, may be used in a variety of applications, such as driving an electric generator in a power generating plant or propelling a ship or an aircraft. Firing temperatures of modern gas turbine engines continue to increase in response to the demand for higher combustion efficiency.
It may be desirable to use a wireless power-receiving assembly, such as may be used for electrically powering circuitry of a telemetry system, which may be used to monitor operational parameters of the engine, such as monitoring operating temperatures of components of the turbine, e.g., a turbine blade, or monitoring thermo-mechanical stresses placed upon such components during operation of the engine. Aspects of the present invention offer improvements in connection with assemblies operating in the high-temperature, high-vibration environment of the turbine engine.
The invention is explained in the following description in view of the drawings that show:
In operation, air is drawn in through compressor 12, where it is compressed and driven towards combustor 14. Combustor 14 mixes the air with fuel and ignites it thereby forming a working gas. This working gas temperature will typically be above about 1300° C. This gas expands through turbine 16, being guided across blades 18 by vanes 22. As the gas passes through turbine 16, it rotates blades 18 and shaft 20, thereby transmitting usable mechanical work through shaft 20. Combustion turbine 10 may also include a cooling system (not shown), dimensioned and configured to supply a coolant, for example, steam or compressed air, to blades 18 and vanes 22.
The environment within which turbine blades 18 and vanes 22 operate is particularly harsh, subject to high operating temperatures and a corrosive atmosphere, which may result in serious deterioration of blades 18 and vanes 22. This is especially likely if TBC 26 should spall or otherwise deteriorate. A plurality of sensors 50 may be used for detecting a condition of the blades and/or vane. Disclosed embodiments of the invention are advantageous because telemetry circuitry may transmit real time or near real time data indicative of a component's condition during operation of combustion turbine 10.
As may be appreciated in the respective cross-sectional view shown in
In one non-limiting embodiment, lid 134 is positioned to provide support against a surface of the movable component (e.g., end face 120 (
Presuming housing 130 during assembly operations is oriented so that opening 132 is facing upwardly, first layer 136 of potting adhesive may be applied onto an interior bottom surface of housing 130 to provide a relatively thin affixing base layer to induction coil 133 embedded in ceramic substrate or board 135. In one non-limiting embodiment, first layer 136 of potting adhesive may be cured at a first temperature (e.g., room temperature) and then baked at a second temperature (e.g., approximately 500° C). A second layer 138 of potting adhesive may then be applied to encapsulate coil 133 over a relatively narrow thickness within the interior of housing 130. Upon appropriate curing and baking of second layer 138, layer 140 of potting adhesive may then be applied to, for example, practically fill-in the remaining thickness within the interior of housing 130. Upon appropriate curing and baking of layer 140 of potting adhesive, a fine bonding layer (not shown) may be applied to affix lid 134 and close opening 132 of housing 130. In one non-limiting embodiment, a coefficient of a thermal expansion of the potting adhesive may have a value between the respective values of a coefficient of thermal expansion of the ceramic material of housing 130 and a coefficient of thermal expansion of ceramic substrate or board 135, where induction coil 133 is embedded.
Lid 134 is arranged to provide vibrational buffering between the corresponding surface of the movable component (e.g., end face 120 of the root 122 of the turbine blade) and the layers (e.g., layers 136, 138, 140) encasing induction coil 133. In one non-limiting embodiment, housing 130 may be composed of a ceramic material, (e.g., to provide a relatively hard and temperature-resistant structure) and lid 134 may be composed of a ceramic matrix composite material (e.g., to provide a relatively compliant and temperature-resistant structure).
A rotatable antenna 142 (
In one non-limiting example, as may be appreciated in
Electrically conductive structures 152 (e.g., electrically conductive pads) may be constructed on ceramic substrate or board 135 so that, as illustrated in
While various embodiments of the present invention have been shown and described herein, it will be apparent that such embodiments are provided by way of example only. Numerous variations, changes and substitutions may be made without departing from the invention herein. Accordingly, it is intended that the invention be limited only by the spirit and scope of the appended claims.
Development for this invention was supported in part by Contract Number DE-FE0005666, awarded by the United States Department of Energy. Accordingly, the United States Government may have certain rights in this invention.
Number | Name | Date | Kind |
---|---|---|---|
3876998 | Richter et al. | Apr 1975 | A |
3890456 | Dils | Jun 1975 | A |
4339719 | Rhines et al. | Jul 1982 | A |
4546652 | Virkar et al. | Oct 1985 | A |
4578992 | Galasko et al. | Apr 1986 | A |
4595298 | Frederick | Jun 1986 | A |
4703326 | Ding et al. | Oct 1987 | A |
4812050 | Epstein | Mar 1989 | A |
4851300 | Przybyszewski | Jul 1989 | A |
4860442 | Ainsworth et al. | Aug 1989 | A |
4916715 | Adiutori | Apr 1990 | A |
4969956 | Kreider et al. | Nov 1990 | A |
4970670 | Twerdochlib | Nov 1990 | A |
4983034 | Spillman, Jr. | Jan 1991 | A |
5005353 | Acton et al. | Apr 1991 | A |
5144299 | Smith | Sep 1992 | A |
5306368 | Yamada et al. | Apr 1994 | A |
5318725 | Sandhage | Jun 1994 | A |
5416430 | Twerdochlib et al. | May 1995 | A |
5440300 | Spillman, Jr. | Aug 1995 | A |
5578877 | Tiemann | Nov 1996 | A |
5583474 | Mizoguchi | Dec 1996 | A |
5952836 | Haake | Sep 1999 | A |
5969260 | Belk et al. | Oct 1999 | A |
5970393 | Khorrami et al. | Oct 1999 | A |
6000977 | Haake | Dec 1999 | A |
6034296 | Elvin et al. | Mar 2000 | A |
6072165 | Feldman | Jun 2000 | A |
6109783 | Dobler et al. | Aug 2000 | A |
6127040 | Grobbauer et al. | Oct 2000 | A |
6142665 | Haffner et al. | Nov 2000 | A |
6197424 | Morrison et al. | Mar 2001 | B1 |
6262550 | Kliman et al. | Jul 2001 | B1 |
6280083 | Kita et al. | Aug 2001 | B2 |
6331823 | El-Ibiary | Dec 2001 | B1 |
6343251 | Herron et al. | Jan 2002 | B1 |
6398503 | Takahashi et al. | Jun 2002 | B1 |
6437681 | Wang et al. | Aug 2002 | B1 |
6512379 | Harrold et al. | Jan 2003 | B2 |
6523383 | Joki et al. | Feb 2003 | B2 |
6532412 | Adibhatla et al. | Mar 2003 | B2 |
6556956 | Hunt | Apr 2003 | B1 |
6576861 | Sampath et al. | Jun 2003 | B2 |
6591182 | Cece et al. | Jul 2003 | B1 |
6667725 | Simons et al. | Dec 2003 | B1 |
6677683 | Klausing et al. | Jan 2004 | B2 |
6729187 | Gregory | May 2004 | B1 |
6735549 | Ridolfo | May 2004 | B2 |
6756131 | Oguma et al. | Jun 2004 | B2 |
6756908 | Gass et al. | Jun 2004 | B2 |
6760689 | Follin et al. | Jul 2004 | B2 |
6796187 | Srinivasan et al. | Sep 2004 | B2 |
6808813 | Kimura et al. | Oct 2004 | B2 |
6816817 | Retlich et al. | Nov 2004 | B1 |
6831555 | Miller et al. | Dec 2004 | B1 |
6838157 | Subramanian | Jan 2005 | B2 |
6943699 | Ziarno | Sep 2005 | B2 |
6979498 | Darolia et al. | Dec 2005 | B2 |
6979991 | Burns et al. | Dec 2005 | B2 |
7004622 | Hardwicke et al. | Feb 2006 | B2 |
7009310 | Cheung et al. | Mar 2006 | B2 |
7368827 | Kulkarni et al. | May 2008 | B2 |
7423518 | Yamada | Sep 2008 | B2 |
7443268 | Tsai et al. | Oct 2008 | B2 |
7572524 | Sabol et al. | Aug 2009 | B2 |
7712663 | Sukegawa et al. | May 2010 | B2 |
7868431 | Feng et al. | Jan 2011 | B2 |
7932800 | Lim et al. | Apr 2011 | B2 |
7969323 | Mitchell et al. | Jun 2011 | B2 |
8004423 | Mitchell et al. | Aug 2011 | B2 |
8023269 | Mitchell et al. | Sep 2011 | B2 |
8044757 | Bae et al. | Oct 2011 | B2 |
8076587 | Mitchell et al. | Dec 2011 | B2 |
8092080 | Mitchell et al. | Jan 2012 | B2 |
8150348 | Ho | Apr 2012 | B2 |
8220990 | Mitchell et al. | Jul 2012 | B2 |
8223036 | Mitchell et al. | Jul 2012 | B2 |
20020083712 | Tomlinson et al. | Jul 2002 | A1 |
20020143477 | Antoine et al. | Oct 2002 | A1 |
20030011458 | Nuytkens | Jan 2003 | A1 |
20030020480 | Maylotte et al. | Jan 2003 | A1 |
20030049119 | Johnson | Mar 2003 | A1 |
20040114666 | Hardwicke et al. | Jun 2004 | A1 |
20050061058 | Willsch et al. | Mar 2005 | A1 |
20060018361 | Hardwicke et al. | Jan 2006 | A1 |
20060020415 | Hardwicke et al. | Jan 2006 | A1 |
20090121896 | Mitchell | May 2009 | A1 |
20100226756 | Mitchell et al. | Sep 2010 | A1 |
20100226757 | Mitchell et al. | Sep 2010 | A1 |
20110133950 | Subramanian et al. | Jun 2011 | A1 |
20120194396 | Mitchell et al. | Aug 2012 | A1 |
20120197597 | Mitchell et al. | Aug 2012 | A1 |
Number | Date | Country |
---|---|---|
2424679 | Oct 2006 | GB |
Number | Date | Country | |
---|---|---|---|
20150061893 A1 | Mar 2015 | US |