ClassID:

140153

F02G1/02 - CPC Classification

Classification description:

Hot gas positive-displacement engine plants of open-cycle type

Recent Application in this class:
#1
20260049570
2026-02-19

INTERNAL COMBUSTION ENGINE CONFIGURED FOR USE WITH SOLID OR SLOW BURNING FUELS, AND METHODS OF OPERATING OR IMPLEMENTING SAME

#2
20240077045
2024-03-07

Biomass energy generator system

#3
20230366345
2023-11-16

Internal combustion engine configured for use with solid or slow burning fuels, and methods of operating or implementing same

#4
20220025813
2022-01-27

Internal combustion engine configured for use with solid or slow burning fuels, and methods of operating or implementing same

#5
20210131540
2021-05-06

EXTERNAL HEAT ENGINE WITH NON-SINUSOIDAL MOTION

#6
20200240297
2020-07-30

External heat source engine with slide valves

#7
20200232397
2020-07-23

Method for controlling an internal combustion engine system

#8
20190234341
2019-08-01

Power generation using enthalpy difference gradient for subatmospheric regenerative piston engine

#9
20190032488
2019-01-31

Heat engine, in particular ORC engine

#10
20180363535
2018-12-20

Internal combustion engine system

#11
20180030858
2018-02-01

Scissor type compression and expansion machine used in a thermal energy recuperation system

#12
20180023465
2018-01-25

Split cycle engine

#13
20170211509
2017-07-27

Inlet Valve Arrangement and Method for External-Heat Engine

#14
20170074295
2017-03-16

Double-acting pressure reducing cylinder with adaptive support

#15
20170009701
2017-01-12

Variable volume transfer shuttle capsule and valve mechanism

#16
20160252048
2016-09-01

Heat engine of transfer-expansion and regeneration type

#17
20160084198
2016-03-24

Heat/acoustic wave conversion unit

#18
20150285183
2015-10-08

Hot gas engine

#19
20150226465
2015-08-13

CRYOGENIC ENGINE WITH ROTARY VALVE

#20
20150198185
2015-07-16

Compressed gas energy storage system

#21
20150159586
2015-06-11

Brayton cycle engine with high displacement rate and low vibration

#22
20150113973
2015-04-30

Thermal torque engine

#23
20140352310
2014-12-04

Hot-air engine

#24
20140308147
2014-10-16

Gerotor apparatus for a quasi-isothermal Brayton cycle engine

#25
20140305099
2014-10-16

Systems, methods, and apparatuses related to the use of gas clathrates

#26
20140216031
2014-08-07

SYSTEM FOR CONVERTING WASTE ENERGY INTO ELECTRICITY

#27
20140007569
2014-01-09

Isothermal machines, systems and methods

#28
20130318938
2013-12-05

Heat engine

#29
20130269330
2013-10-17

SYSTEMS AND METHODS FOR ENERGY STORAGE AND RECOVERY USING GAS EXPANSION AND COMPRESSION

#30
20130239563
2013-09-19

MONO-ENERGY AND/OR DUAL-ENERGY ENGINE WITH COMPRESSED AIR AND/OR ADDITIONAL ENERGY, COMPRISING AN ACTIVE CHAMBER INCLUDED IN THE CYLINDER

#31
20130205779
2013-08-15

Molecular Transformation Energy Conversion System

#32
20130098027
2013-04-25

Compressed gas energy storage system

#33
20130074488
2013-03-28

SYSTEMS AND METHODS FOR FOAM-BASED HEAT EXCHANGE DURING ENERGY STORAGE AND RECOVERY USING COMPRESSED GAS

#34
20130067906
2013-03-21

HEAT EXCHANGING CYLINDER HEAD

#35
20120297772
2012-11-29

SYSTEMS AND METHODS FOR EFFICIENT TWO-PHASE HEAT TRANSFER IN COMPRESSED-AIR ENERGY STORAGE SYSTEMS

#36
20120222424
2012-09-06

Compressor and expander device with pressure vessel divider baffle and piston

#37
20120118250
2012-05-17

Axial-piston motor with continuously working combustion chamber having two combustion air inputs

#38
20120031383
2012-02-09

INTERNAL COMBUSTION ENGINE

#39
20120024264
2012-02-02

Heat engine

#40
20110296823
2011-12-08

Systems and methods for energy storage and recovery using gas expansion and compression

#41
20110277472
2011-11-17

Heat engine using solar energy

#42
20110266813
2011-11-03

Heat engine for converting low temperature energy to electricity

#43
20100266435
2010-10-21

Gerotor apparatus for a quasi-isothermal Brayton cycle engine

#44
20100218750
2010-09-02

Low-temperature motor compressor unit with continuous “cold” combustion at constant pressure and with active chamber

#45
20100192565
2010-08-05

Rotary energy conversion device with reciprocating pistons

#46
20100051003
2010-03-04

Compressed-air or gas and/or additional-energy engine having an active expansion chamber

#47
20080148731
2008-06-26

Heat engines

#48
20080110180
2008-05-15

Thermoacoustic Device

#49
20080072751
2008-03-27

Piston apparatus, stirling engine, external combustion engine, and fluid device

#50
20070199299
2007-08-30

Combustion Engine

#51
20070151538
2007-07-05

Rotary valve system and engine using the same

#52
20070151537
2007-07-05

Rotary valve system and engine using the same

#53
20070044478
2007-03-01

Combustion engine

#54
20070017477
2007-01-25

Rotary valve system and engine using the same

#55
20070017476
2007-01-25

Rotary valve system and engine using the same

#56
20070017204
2007-01-25

Internal combustion engine and method

#57
20070017203
2007-01-25

Internal combustion engine and method

#58
20070017202
2007-01-25

Internal combustion engine and method

#59
20070017201
2007-01-25

Internal combustion engine and method

#60
20070017200
2007-01-25

Internal combustion engine and method

#61
20070012291
2007-01-18

Internal combustion engine and method

#62
20070012024
2007-01-18

Internal combustion engine and method

#63
20070012023
2007-01-18

Internal combustion engine and method with improved combustion chamber

#64
20070012022
2007-01-18

Internal combustion engine and method with improved combustion chamber

#65
20070012021
2007-01-18

Internal combustion engine and method with improved combustion chamber

#66
20070012020
2007-01-18

Internal combustion engine and method with improved combustion chamber

#67
20060254554
2006-11-16

Rotary valve system and engine using the same

#68
20060254249
2006-11-16

Internal combustion engine and method with improved combustion chamber

#69
20060243229
2006-11-02

Internal combustion engine and method

#70
20060218919
2006-10-05

Heat energy recovery apparatus

#71
20060101800
2006-05-18

Gas turbine engine system

#72
20050198962
2005-09-15

External combustion engine

#73
19204018
2025-09-30

Process for generating clean power and hydrogen

#74
18792810
2025-08-19

Alternative heat source for an engine

#75
18241935
2024-04-02

Exhaust gas heat recovery from cryo-compression engines with cogeneration of cryo-working fluid

#76
15888432
2019-07-16

Laser powered, air breathing, open-cycle heat engines

#77
15009080
2018-03-20

Methods of laser powering unmanned aerial vehicles with heat engines

#78
15007428
2019-03-19

Method and apparatus utilizing thermally conductive pumps for conversion of thermal energy to mechanical energy

#79
13622554
2015-09-22

Heat engine

#80
11809961
2013-05-28

Pistonless, rotary internal combustion engine and associated support systems