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Class Information
Number: 60/679
Name: Power plants > Motive fluid energized by externally applied heat > Power system involving change of state > Having motive fluid reheater between serially connected motors
Description: Apparatus, comprising a first motor exhausting fluid from a working chamber with means to heat the exhausted fluid indirectly the heated exhaust fluid being then supplied as motive fluid to actuate a second motor or motor stage.

Sub-classes under this class:

Class Number Class Name Patents
60/680 Motive fluid bypassing upstream motor heats reheater 17

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8701421 Dynamic combustion chamber Apr. 22, 2014
8661820 LNG regasification and power generation Mar. 4, 2014
8661821 Process for reducing coal consumption in coal fired power plant with fluidized-bed drying Mar. 4, 2014
8650878 Turbine system including valve for leak off line for controlling seal steam flow Feb. 18, 2014
8631658 Method and system for enhancing power output of renewable thermal cycle power plants Jan. 21, 2014
8596067 Cooling tower apparatus and method with waste heat utilization Dec. 3, 2013
8505299 Steam turbine flow adjustment system Aug. 13, 2013
8499561 Method and apparatus for controlling moisture separator reheaters Aug. 6, 2013
8479516 Closed loop scroll expander Jul. 9, 2013
8453451 Operation method of nuclear power plant Jun. 4, 2013
8443606 Enhanced steam cycle utilizing a dual pressure recovery boiler with reheat May. 21, 2013
8438849 Multi-level organic rankine cycle power system May. 14, 2013
8387388 Turbine blade Mar. 5, 2013
8347627 Carbon-dioxide-capture-type steam power generation system Jan. 8, 2013
8276382 Systems and methods for pre-warming a heat recovery steam generator and associated steam lines Oct. 2, 2012
8161724 Hybrid biomass process with reheat cycle Apr. 24, 2012
8104283 Steam temperature control in a boiler system using reheater variables Jan. 31, 2012
8082737 Module-based oxy-fuel boiler Dec. 27, 2011
8024930 Heat integration in coal gasification and methanation reaction process Sep. 27, 2011
7987676 Two-phase expansion system and method for energy recovery Aug. 2, 2011
7975483 Steam power plant and also method for retrofitting a steam power plant Jul. 12, 2011
7900431 Process and plant for power generation Mar. 8, 2011
7870735 Closed loop expandable gas circuit for power generation Jan. 18, 2011
7861527 Reheater temperature control Jan. 4, 2011
7793501 Apparatus for steam attemperation using fuel gas heater water discharge to reduce feedwater pump size Sep. 14, 2010
7690201 Method of efficiency and emissions performance improvement for the simple steam cycle Apr. 6, 2010
7681396 Steam turbine with heating steam extraction and power plant with steam turbine Mar. 23, 2010
7658073 Turbine systems and methods for using internal leakage flow for cooling Feb. 9, 2010
7640746 Method and system integrating solar heat into a regenerative rankine steam cycle Jan. 5, 2010
7640750 Apparatus and method for producing energy at a pulp mill Jan. 5, 2010
7607304 Steam turbine system Oct. 27, 2009
7578139 Refrigeration system including refrigeration cycle and rankine cycle Aug. 25, 2009
7578142 Method for recovering the energy of gas expansion and a recovery device for carrying out said method Aug. 25, 2009
7568342 Supply pump actuating turbine Aug. 4, 2009
7562531 Method and system for operative reconversion of pairs of pre-existing steam turbo-units Jul. 21, 2009
7546732 Dynamic combustion chamber Jun. 16, 2009
7516620 Module-based oxy-fuel boiler Apr. 14, 2009
7373904 Stratified vapor generator May. 20, 2008
7331181 Reheating steam temperature control Feb. 19, 2008
7318316 Reheat/regenerative type thermal power plant using Rankine cycle Jan. 15, 2008
7168233 System for controlling steam temperature Jan. 30, 2007
7124585 Scroll-type expander having heating structure and scroll-type heat exchange system employing the expander Oct. 24, 2006
7062913 Heat engine Jun. 20, 2006
7055326 Single flow cascade power system Jun. 6, 2006
7040095 Method and apparatus for controlling the final feedwater temperature of a regenerative rankine cycle May. 9, 2006
7007474 Energy recovery during expansion of compressed gas using power plant low-quality heat sources Mar. 7, 2006
6964167 Method for operating a steam power installation and corresponding steam power installation Nov. 15, 2005
6955051 Steam generation apparatus and methods Oct. 18, 2005
6951106 Integration construction between a boiler and a steam turbine and method in preheating of the supply water for a steam turbine and in its control Oct. 4, 2005
6948315 Method and apparatus for a waste heat recycling thermal power plant Sep. 27, 2005

1 2 3

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