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Class Information
Number: 60/682
Name: Power plants > Motive fluid energized by externally applied heat > Single state motive fluid energized by indirect heat transfer
Description: Apparatus, in which a heat energized motive fluid used in a device producing mechanical output does not change state during the operation of the system.


Sub-classes under this class:

Class Number Class Name Patents
60/684 Including interstage reheat means 15
60/683 Motor exhaust fed into combustion device 31


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
7603858 Harmonic engine Oct. 20, 2009
7596947 Gas turbine plant Oct. 6, 2009
7448213 Heat energy recovery apparatus Nov. 11, 2008
7444818 Batch fired heat reservoirs Nov. 4, 2008
7426832 Universal thermodynamic gas turbine in a closed Carnot cycle Sep. 23, 2008
7340893 Steam generator system Mar. 11, 2008
7293414 High performance method for throttling of closed gas turbine cycles Nov. 13, 2007
7013639 Heat differential power system Mar. 21, 2006
6938421 Indirectly heated gas turbine control system Sep. 6, 2005
6742337 Waste heat recovery system Jun. 1, 2004
6729136 Liquid metal/liquid nitrogen power plant for powering a turbine or any use device May. 4, 2004
6629413 Thermodynamic apparatus Oct. 7, 2003
6629412 Electricity-producing heating apparatus utilizing a turbine generator in a semi-closed brayton cycle Oct. 7, 2003
6585047 System for heat exchange with earth loops Jul. 1, 2003
6526754 Combined cycle power plant Mar. 4, 2003
6497090 Externally fired combined cycle gas turbine system Dec. 24, 2002
6422017 Reheat regenerative rankine cycle Jul. 23, 2002
6415607 High efficiency, air bottoming engine Jul. 9, 2002
6256994 Operation of an air separation process with a combustion engine for the production of atmospheric gas products and electric power Jul. 10, 2001
6196000 Power system with enhanced thermodynamic efficiency and pollution control Mar. 6, 2001
6178750 Method and apparatus for converting thermal energy into work Jan. 30, 2001
6167706 Externally fired combined cycle gas turbine Jan. 2, 2001
6155051 Method of heating natural gas in a city gate station Dec. 5, 2000
6035643 Ambient temperature sensitive heat engine cycle Mar. 14, 2000
6012280 Reciprocating engine Jan. 11, 2000
5873250 Non-polluting open Brayton cycle automotive power unit Feb. 23, 1999
5799490 Externally fired combined cycle gas turbine Sep. 1, 1998
5775414 High temperature high pressure air-to-air heat exchangers and assemblies useful therein Jul. 7, 1998
5775107 Solar powered electrical generating system Jul. 7, 1998
5768893 Turbine with internal heating passages Jun. 23, 1998
5704209 Externally fired combined cycle gas turbine system Jan. 6, 1998
5687570 Externally fired combined cycle gas turbine system Nov. 18, 1997
5685154 Pressure reducing system and method for using the same Nov. 11, 1997
5642620 Hot gas motor and compressor unit Jul. 1, 1997
5634340 Compressed gas energy storage system with cooling capability Jun. 3, 1997
5634339 Non-polluting, open brayton cycle automotive power unit Jun. 3, 1997
5628191 Natural gas expansion plant May. 13, 1997
5590528 Turbocharged reciprocation engine for power and refrigeration using the modified Ericsson cycle Jan. 7, 1997
5537823 High efficiency energy conversion system Jul. 23, 1996
5414997 Thermal lag machine May. 16, 1995
5410998 Continuous external heat engine May. 2, 1995
5325671 Rotary heat engine Jul. 5, 1994
5209065 Heat engine utilizing a cycle having an isenthalpic pressure-increasing process May. 11, 1993
5180278 Surge-tolerant compression system Jan. 19, 1993
5165238 Continuous external heat engine Nov. 24, 1992
5142870 Hydraulic compressor and fuel fired turbine apparatus Sep. 1, 1992
5107682 Maximum ambient cycle Apr. 28, 1992
5099648 Hydraulic air compressor and turbine apparatus Mar. 31, 1992
5095707 Extraterrestrial planetary power supply and method Mar. 17, 1992
5083425 Power installation using fuel cells Jan. 28, 1992

1 2 3 4


 
 
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