F01K21/04 - CPC Classification Index

ClassID:

137097 ⎘

F01K21/04 - CPC Classification

Classification description:

Steam engine plants not otherwise provided for using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas

Sub-classes:

F01K21/042 » {pure steam being expanded in a motor somewhere in the plant } 6
F01K21/045 » {Introducing gas and steam separately into the motor, e.g. admission to a single rotor through separate nozzles} 13
F01K21/047 » {having at least one combustion gas turbine} 87

Recent Application in this class:

20250369372

2025-12-04

COMBINED CYCLE POWER PLANT WITH EXHAUST GAS RECIRCULATION EJECTOR

20250215813

2025-07-03

HEAT ENGINE

20250003355

2025-01-02

POWER GENERATING SYSTEM AND POWER GENERATING METHOD

20240200474

2024-06-20

Heat engine

20230279787

2023-09-07

Heat engine

20220325637

2022-10-13

Combined thermodynamic cycle with high energy recovery

20220275752

2022-09-01

Supercritical fluid systems

20200277880

2020-09-03

System and Method for Geothermal Power Generation Using a Closed-Loop of Liquid having Low Boiling Temperature

20200052555

2020-02-13

Working medium property difference power generation system and working medium property difference power generation method that uses the power generation system

#10

20190242274

2019-08-08

Method for detecting an unsealed location in a heat recovery system

#11

20190218943

2019-07-18

SYSTEM AND METHOD FOR GENERATING ELECTRIC ENERGY

#12

20190128148

2019-05-02

Method and system for transforming heat into kinetic energy

#13

20190003345

2019-01-03

Thermodynamic engine

#14

20180299119

2018-10-18

Direct steam generation, electrical power generator, apparatus and method

#15

20180163626

2018-06-14

Air logic control for auxiliary air injection system

#16

20180128480

2018-05-10

THERMO-KINETIC REACTOR WITH MICRO-NUCLEAR IMPLOSIONS

#17

20180062186

2018-03-01

Heat recovery for saturator water recovery of a direct fuel cell system

#18

20180045079

2018-02-15

SYSTEM AND METHOD FOR GENERATING ELECTRIC ENERGY

#19

20170284227

2017-10-05

Method for generating energy, in which an electropositive metal is atomized and/or sprayed and combusted with a reaction gas, and a device for carrying out said method

#20

20170152764

2017-06-01

Power systems and methods configuring and using same

#21

20170058710

2017-03-02

GENERATING STEAM FROM CARBONACEOUS MATERIAL

#22

20160326913

2016-11-10

System and method for generating electric energy

#23

20160069329

2016-03-10

Thermally driven solar power generating system

#24

20160017762

2016-01-21

Gas turbine unit operating mode and design

#25

20160010509

2016-01-14

Variable fuel gas moisture control for gas turbine combustor

#26

20150298093

2015-10-22

INTEGRATED SYSTEM AND METHOD FOR THE FLEXIBLE USE OF ELECTRICITY

#27

20150292736

2015-10-15

System and method for reutilizing COfrom combusted carbonaceous material

#28

20150260053

2015-09-17

System and method for generating electric energy

#29

20150176436

2015-06-25

Mixing assembly and method for combining at least two working fluids

#30

20150040546

2015-02-12

Internal combustion engines

#31

20140311144

2014-10-23

Atmospheric water vapor engine

#32

20140261253

2014-09-18

Power generation system

#33

20140250888

2014-09-11

Heat exchangers, boilers, and systems incorporating the same

#34

20140174082

2014-06-26

Method of generating a high-speed airflow

#35

20140142327

2014-05-22

Process for producing dry purified furan-2,5-dicarboxylic acid with oxidation off-gas treatment

#36

20130276447

2013-10-24

Device for converting heat energy into mechanical energy

#37

20130200624

2013-08-08

Generating steam from carbonaceous material

#38

20130192192

2013-08-01

Open brayton bottoming cycle and method of using the same

#39

20130022537

2013-01-24

HYDROGEN PRODUCTION FROM AN OXYFUEL COMBUSTOR

#40

20120279205

2012-11-08

INTERNAL COMBUSTION ENGINES

#41

20120255312

2012-10-11

Method and System to Produce Electric Power

#42

20120227404

2012-09-13

Thermodynamic machine and method for the operation thereof

#43

20120111001

2012-05-10

Engine arrangement with an improved exhaust heat recovery arrangement

#44

20110268241

2011-11-03

Hybrid integrated energy production process

#45

20110265698

2011-11-03

SYSTEM AND METHOD FOR REUTILIZING CO2 FROM COMBUSTED CARBONACEOUS MATERIAL

#46

20110252800

2011-10-20

Aluminium combustion power system

#47

20110104620

2011-05-05

Combustion system and method

#48

20100326374

2010-12-30

Internal combustion engines

#49

20100319636

2010-12-23

Internal combustion engines

#50

20100307431

2010-12-09

Internal combustion engines

#51

20100287934

2010-11-18

Heat Engine System

#52

20100146970

2010-06-17

Method and system for enhancing power output of renewable thermal cycle power plants

#53

20100126171

2010-05-27

Method and apparatus for generating electricity

#54

20100064688

2010-03-18

Hybrid Brayton cycle with solid fuel firing

#55

20100018206

2010-01-28

Method and apparatus for incorporating a low pressure fluid into a high pressure fluid, and increasing the efficiency of the rankine cycle in a power plant

#56