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Thomas Elwood Dowdy: Coal gasification and hydrogen production system and method. Siemens Westinghouse Power Corporation, September 21, 1999: US05955039 (210 worldwide citation)

A system and method generates electricity and co-produces a hydrogen flow from coal. The electricity is generated by a turbine with a topping combustor and a solid oxide fuel cell ("SOFC") reacting syngas. The syngas is produced in a coal gasifier with a portion of the compressed air from the turbin ...


2
Jay Alan Morrison, Gary Brian Merrill, Evan McNeil Ludeman, Jay Edgar Lane: Use of high temperature insulation for ceramic matrix composites in gas turbines. Siemens Westinghouse Power Corporation, Eckert Seamans Cherin & Mellott, March 6, 2001: US06197424 (98 worldwide citation)

A ceramic composition for insulating components, made of ceramic matrix composites, of gas turbines is provided. The composition comprises a plurality of hollow oxide-based spheres of various dimensions, a phosphate binder, and at least one oxide filler powder, whereby the phosphate binder partially ...


3
Bruce Rising: Method and combustor apparatus for sensing the level of a contaminant within a combustion flame. Siemens Westinghouse Power Corporation, Eckert Seamans Cherin & Mellott, July 31, 2001: US06268913 (79 worldwide citation)

A gas turbine combustor burns fuel from a fuel supply. The combustor includes a combustion chamber and a fuel delivery system for delivering the fuel to the combustion chamber. A pilot or fuel nozzle establishes a combustion flame in the combustion chamber by burning the fuel. One or more fuel lines ...


4
David Marchant Parker, Graydon Lane Whidden, Wendel Zolyomi: Combustor with two stage primary fuel tube with concentric members and flow regulating. Siemens Westinghouse Power Corporation, November 16, 1999: US05983642 (78 worldwide citation)

A combustor for a gas turbine having a centrally located fuel nozzle and inner, middle and outer concentric cylindrical liners, the inner liner enclosing a primary combustion zone. The combustor has an air inlet that forms two passages for pre-mixing primary fuel and air to be supplied to the primar ...


5
Kent Goran Hultgren, Thomas Walter Zagar, William E North, Stephen Humphrey Robbins, Graham Mark Upton: Gas turbine blade platform cooling concept. Siemens Westinghouse Power Corporation, Eckert Seamans Cherin & Mellott, September 19, 2000: US06120249 (72 worldwide citation)

A turbine blade with a cooling air flow path specifically directed toward cooling the platform portion of the blade root. Cooling air passages are formed in the blade root platform just below its radially outward facing surface on an overhanging portion of the platform opposite the convex surface of ...


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Allen G Chen, Dennis A Horazak: Method and apparatus for cooling high temperature components in a gas turbine. Siemens Westinghouse Power Corporation, December 3, 2002: US06487863 (69 worldwide citation)

A combustion turbine having a compressed air cooling circuit that is connected to a nitrogen source. Compressed air is provided to the cooling circuit upon start-up and gradually switched to nitrogen cooling, as the nitrogen becomes available. Transition from compressed air to nitrogen cooling is su ...


8
Mitchell O Stokes: Annular premix section for dry low-NO.sub.x combustors. Siemens Westinghouse Power Corporation, Egkert Seamans Cherin & Mellott, July 4, 2000: US06082111 (64 worldwide citation)

An annular premix section that reduces NO.sub.x and CO emissions of a gas turbine combustor by providing a more homogeneous fuel/air mixture for main stage combustion is provided. A gas turbine combustor according to the present invention includes a nozzle housing, a main fuel nozzle, and a main fue ...


9
Michael A Burke, Paula D Freyer, Mohan A Hebbar, Brij B Seth, Gary W Swartzbeck, Thomas Walter Zagar: Turbine blades made from multiple single crystal cast superalloy segments. Siemens Westinghouse Power Corporation, Eckert Seamans Cherin & Mellott, December 18, 2001: US06331217 (62 worldwide citation)

Large gas turbine blades made from separate cast segments of superalloys are disclosed. The turbine blade is designed such that bond lines between adjacent segments are placed in low stress regions of the blade. The cast superalloy segments of the blades are aligned and fitted together with specifie ...


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