F02G 1/044

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Description

Class  F02G : HOT-GAS OR COMBUSTION- PRODUCT POSITIVE-DISPLaCEMENT ENGINE PLANTS


Subclass 1/044: Hot gas positive-displacement engine plants (positive-displacement engine plants characterised by the working gas being generated by combustion in the plant F02G 3/00) of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines having at least two working members, e.g. pistons, delivering power output

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12228094 System and apparatus for energy conversionJul 06, 20Feb 18, 25Hyliion Holdings Corp.
12209553 Compact tandem cylinder reciprocating engine for CO2 power generationDec 28, 21Jan 28, 25Indian Institute of Science
12203427 Multi-temperature double-acting pistonFeb 09, 23Jan 21, 25Not available
12173628 Heat engineMar 15, 22Dec 24, 24CIXTEN
12129812 Engine apparatus and method for operationMay 20, 20Oct 29, 24Hyliion Holdings Corp.
12104552 Stirling cycle machineAug 03, 21Oct 01, 24DEKA Products Limited Partnership
12085041 Near isothermal machineJan 11, 22Sep 10, 24ISOTHERMAL LIMITED
12078123 Stirling cycle machineSep 07, 22Sep 03, 24DEKA Products Limited Partnership
12071910 Alpha Stirling engineOct 20, 21Aug 27, 24EnergyIntel Services Ltd.
12000356 Engine apparatus and method for operationJan 30, 23Jun 04, 24Hyliion Holdings Corp.
11988166 Rotary heat pumpJan 12, 21May 21, 24MARUKO KEIHOKI CO., LTD.
11976610 Constant density heat exchanger and system for energy conversionMar 20, 23May 07, 24Hyliion Holdings Corp.
11795890 Multi-stage stirling cycle machine and a steady-state operating parameter control method thereforApr 26, 21Oct 24, 23Not available
11739711 Energy conversion apparatusOct 18, 21Aug 29, 23Hyliion Holdings Corp.
11725607 Hot air engine having a step pistonDec 16, 21Aug 15, 23FRAUSCHER HOLDING GMBH
11629663 Energy conversion apparatusJan 28, 22Apr 18, 23General Electric Company
11566582 Engine apparatus and method for operationNov 17, 21Jan 31, 23General Electric Company
11530668 Closed cycle regenerative heat enginesMay 25, 21Dec 20, 22Stirling Works Global Ltd
11499501 Stirling engine design and assemblyJan 29, 20Nov 15, 22AZELIO AB
11473815 Stirling-cycle cooling device with monobloc supportDec 27, 19Oct 18, 22Thales

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2025/0067,230 STIRLING CYCLE MACHINEAug 30, 24Feb 27, 25Not available
2025/0027,461 STIRLING CYCLE MACHINESep 30, 24Jan 23, 25Not available
2024/0418,136 ENERGY HARVESTING HEAT ENGINEJun 17, 24Dec 19, 24Not available
2024/0159,201 MONOLITHIC HEAT-EXCHANGER BODIESJan 26, 24May 16, 24Not available
2024/0102,430 NEAR ISOTHERMAL MACHINEJan 11, 22Mar 28, 24Not available
2023/0407,811 ALPHA STIRLING ENGINEOct 20, 21Dec 21, 23Not available
2023/0193,759 EXPANDER SYSTEMS FOR HARNESSING ENERGY FROM PRESSURIZED FLUID FLOWDec 22, 21Jun 22, 23Not available
2022/0065,193 BETA-TYPE STIRLING MACHINEDec 17, 19Mar 03, 22Not available
2021/0381,467 CONSTANT DENSITY HEAT EXCHANGER AND SYSTEM FOR ENERGY CONVERSIONAug 20, 21Dec 09, 21Not available
2021/0033,313 CRYOGENIC STIRLING REFRIGERATOR WITH A PNEUMATIC EXPANDERJul 29, 19Feb 04, 21CRYO TECH LTD.
2020/0378,338 Supercritical Stirling Cycle Heat Engine with AccumulatorsJun 01, 19Dec 03, 20Not available
2020/0256,281 High Dynamic Density Range Thermal Cycle EngineNov 08, 17Aug 13, 20Not available
2020/0149,494 DOUBLE-ACTING STIRLING ENGINES WITH OPTIMAL PARAMETERS AND WAVEFORMSJul 13, 18May 14, 20Not available
2019/0145,347 STIRLING CYCLE AND LINEAR-TO-ROTARY MECHANISM SYSTEMS, DEVICES, AND METHODSSep 12, 18May 16, 19Not available
2018/0291,836 Stirling cycle machineOct 23, 17Oct 11, 18Not available
2018/0023,508 Two Cylinder Double Acting Stirling EngineJul 22, 16Jan 25, 18Not available
2017/0321,630 EXTERNAL COMBUSTION ENGINE WITH SEQUENTIAL PISTON DRIVEDec 03, 14Nov 09, 17Not available
2017/0122,253 Hot air engine/heat pumpNov 01, 16May 04, 17Not available

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Patents Issued To Date - By Filing Year

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