ClassID:

138798

F02B41/06 - CPC Classification

Classification description:

Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power; Engines with prolonged expansion in compound cylinders

Sub-classes:
Recent Application in this class:
#1
20220154671
2022-05-19

Internal combustion engine and a vehicle

#2
20220120214
2022-04-21

Six-cylinder opposed free piston internal combustion engine generator

#3
20220018280
2022-01-20

Four-stroke relative motion cylinder with dedicated compression space

#4
20220010724
2022-01-13

Transfer mechanism for a split-cycle engine

#5
20210148271
2021-05-20

Internal combustion engine arrangement

#6
20210108559
2021-04-15

Internal combustion engine

#7
20210095591
2021-04-01

Spool shuttle crossover valve and combustion chamber in split-cycle engine

#8
20200386151
2020-12-10

Internal combustion engine system and a method for an internal combustion engine system

#9
20200232397
2020-07-23

Method for controlling an internal combustion engine system

#10
20200217244
2020-07-09

Internal combustion engine arrangement

#11
20200191044
2020-06-18

Method of a controlled engine, engine and variants

#12
20190309679
2019-10-10

Internal combustion engine with paired, parallel, offset pistons

#13
20190178152
2019-06-13

Internal combustion engine system and a method for an internal combustion system

#14
20190055881
2019-02-21

Spool shuttle crossover valve and combustion chamber in split-cycle engine

#15
20180363548
2018-12-20

Internal combustion engine with paired, parallel, offset pistons

#16
20180363535
2018-12-20

Internal combustion engine system

#17
20180363526
2018-12-20

Internal combustion engine system and an exhaust treatment unit for such a system

#18
20180266308
2018-09-20

Split cycle engine with crossover shuttle valve

#19
20180202292
2018-07-19

Pressure controlled hydraulic engine

#20
20180149079
2018-05-31

SPARK-IGNITION ENGINE WITH SUBSEQUENT CYLINDERS

#21
20170211509
2017-07-27

Inlet Valve Arrangement and Method for External-Heat Engine

#22
20170058759
2017-03-02

Spool shuttle crossover valve and combustion chamber in split-cycle engine

#23
20160376980
2016-12-29

Single shaft dual expansion internal combustion engine

#24
20160363045
2016-12-15

Single-shaft dual expansion internal combustion engine

#25
20160333778
2016-11-17

Internal combustion engine

#26
20160333776
2016-11-17

Internal combustion engine

#27
20160326945
2016-11-10

Internal combustion engine with an adjustable volume induction chamber

#28
20160222877
2016-08-04

Single shaft dual expansion internal combustion engine

#29
20160222872
2016-08-04

Single-shaft dual expansion internal combustion engine

#30
20160160745
2016-06-09

SPLIT-CYCLE ENGINES WITH DIRECT INJECTION

#31
20150315959
2015-11-05

Spool shuttle crossover valve in split-cycle engine

#32
20150275747
2015-10-01

Exhaust compound internal combustion engine with controlled expansion

#33
20150252718
2015-09-10

Four-cycle internal combustion engine with pre-stage cooled compression

#34
20150167548
2015-06-18

Internal combustion engines

#35
20150027116
2015-01-29

Volume-controlled four-stroke reciprocating internal combustion engine and method for operating the four-stroke reciprocating internal combustion engine

#36
20140311465
2014-10-23

Reclaim internal combustion engine

#37
20140308147
2014-10-16

Gerotor apparatus for a quasi-isothermal Brayton cycle engine

#38
20140261325
2014-09-18

Split-cycle engines with direct injection

#39
20140261297
2014-09-18

Internal combustion engines

#40
20140209052
2014-07-31

Piston arrangement and engine

#41
20140158102
2014-06-12

Split-cycle air-hybrid engine with air expander and firing mode

#42
20130318938
2013-12-05

Heat engine

#43
20130152889
2013-06-20

Lost-motion variable valve actuation system

#44
20130139769
2013-06-06

Mackay Tri-expansion cycle engine utilizing an eight-stroke master cylinder and an eight-stroke slave cylinder

#45
20120304967
2012-12-06

Ultra Efficient Engine

#46
20120279479
2012-11-08

Heat Recycling Internal Combustion Enines

#47
20120160223
2012-06-28

Internal combustion engine with separate combustion chamber and a method to achieve modified and controlled autoignition in said chamber

#48
20120152184
2012-06-21

ENGINE WITH COMBINED COMBUSTION AND STEAM OPERATION FOR CURRENT GENERATION

#49
20120103314
2012-05-03

Split cycle reciprocating piston engine

#50
20120085301
2012-04-12

Internal combustion engine with exhaust-phase power extraction serving cylinder pair(s)

#51
20110308505
2011-12-22

Split-cycle engine with crossover passage combustion

#52
20110303202
2011-12-15

INTERNAL COMBUSTION ENGINE

#53
20110303191
2011-12-15

Low-cost type mackay four-stroke engine system

#54
20110303185
2011-12-15

Split cycle engine and method with increased power density

#55
20110297120
2011-12-08

RAKH Cycle, Boilerless, Airless, Hydrogen Fueled, Closed Cycle, Steam Engine

#56
20110226224
2011-09-22

Split-cycle internal combustion engine

#57
20110220082
2011-09-15

Split-cycle air-hybrid engine having a threshold minimum tank pressure

#58
20110220081
2011-09-15

SPLIT-CYCLE AIR-HYBRID ENGINE WITH MINIMIZED CROSSOVER PORT VOLUME

#59
20110220080
2011-09-15

SPLIT-CYCLE AIR-HYBRID ENGINE WITH AIR TANK VALVE

#60
20110220079
2011-09-15

Split-cycle air-hybrid engine with expander deactivation

#61
20110220078
2011-09-15

SPLIT-CYCLE AIR-HYBRID ENGINE WITH COMPRESSOR DEACTIVATION

#62
20110220077
2011-09-15

SPLIT-CYCLE AIR-HYBRID ENGINE WITH FIRING AND CHARGING MODE

#63
20110220076
2011-09-15

Split-cycle air-hybrid engine with air expander and firing mode

#64
20110220075
2011-09-15

SPLIT-CYCLE ENGINE WITH HIGH RESIDUAL EXPANSION RATIO

#65
20110120429
2011-05-26

Reclaim internal combustion engine

#66
20110094462
2011-04-28

Engine with internal exhaust gas recirculation and method thereof

#67
20110036324
2011-02-17

DEV cycle engine

#68
20110023817
2011-02-03

Variable-coordination-timing type self-cooling engine with variable-profile-camshaft

#69
20100300385
2010-12-02

Internal combustion engine utilizing dual compression and dual expansion processes

#70
20100269806
2010-10-28

Method for operating an internal combustion engine and an internal combustion engine

#71
20100269782
2010-10-28

Augmenter for compound compression engine

#72
20100266435
2010-10-21

Gerotor apparatus for a quasi-isothermal Brayton cycle engine

#73
20100018480
2010-01-28

Two-stage-coordination type eight-stroke engine

#74
20100018479
2010-01-28

Eight-stroke engine with coordination pressure management system

#75
20100012082
2010-01-21

Swirl-injection type eight-stroke engine

#76
20100012058
2010-01-21

Variable coordination volume type eight-stroke engine

#77
20090301086
2009-12-10

Selective compound engine

#78
20090283061
2009-11-19

Split-Cycle Four-Stroke Engine

#79
20090277404
2009-11-12

Active-threshold-control type self-cooling engine

#80
20090277403
2009-11-12

Variable-coordination-timing type self-cooling engine

#81
20090277402
2009-11-12

Self-supercharging engine with freewheeling mechanism

#82
20090272368
2009-11-05

Split-cycle four-stroke engine

#83
20090272343
2009-11-05

Drive unit with an internal combustion engine and a reciprocating piston engine which is self-starting without regulation

#84
20090266347
2009-10-29

Split-cycle air hybrid engine

#85
20090241927
2009-10-01

Split-Cycle Four-Stroke Engine

#86
20090241926
2009-10-01

SPLIT-CYCLE FOUR-STROKE ENGINE

#87
20090229587
2009-09-17

Split-cycle four-stroke engine

#88
20090223482
2009-09-10

METHOD FOR IMPROVING AN INTERNAL COMBUSTION ENGINE

#89
20090199829
2009-08-13

Split-cycle four-stroke engine

#90
20090150060
2009-06-11

Split-cycle four-stroke engine

#91
20090056670
2009-03-05

High efficiency integrated heat engine-2 (HEIHE-2)

#92
20090056667
2009-03-05

Ultra efficient engine

#93
20090056331
2009-03-05

High efficiency integrated heat engine (HEIHE)

#94
20080314355
2008-12-25

Engine arrangement

#95
20080105225
2008-05-08

Split-cycle air hybrid engine

#96
20080053093
2008-03-06

Uniform pressure unequal surface engine and engine for power generators using the same

#97
20080034755
2008-02-14

STEAM ENHANCED DOUBLE PISTON CYCLE ENGINE

#98
20080017141
2008-01-24

AIR/FUEL DOUBLE PRE-MIX SELF-SUPERCHARGING INTERNAL COMBUSTION ENGINE WITH OPTIONAL FREEWHEELING MECHANISM

#99
20070289562
2007-12-20

Constant temperature internal combustion engine and method

#100
20070272221
2007-11-29

Split-cycle four-stroke engine

#101
20070157894
2007-07-12

Split-cycle air hybrid engine

#102
20070151538
2007-07-05

Rotary valve system and engine using the same

#103
20070151537
2007-07-05

Rotary valve system and engine using the same

#104
20070039323
2007-02-22

Steam enhanced double piston cycle engine

#105
20070017477
2007-01-25

Rotary valve system and engine using the same

#106
20070017476
2007-01-25

Rotary valve system and engine using the same

#107
20070017204
2007-01-25

Internal combustion engine and method

#108
20070017203
2007-01-25

Internal combustion engine and method

#109
20070017202
2007-01-25

Internal combustion engine and method

#110
20070017201
2007-01-25

Internal combustion engine and method

#111
20070017200
2007-01-25

Internal combustion engine and method

#112
20070012291
2007-01-18

Internal combustion engine and method

#113
20070012024
2007-01-18

Internal combustion engine and method

#114
20070012023
2007-01-18

Internal combustion engine and method with improved combustion chamber

#115
20070012022
2007-01-18

Internal combustion engine and method with improved combustion chamber

#116
20070012021
2007-01-18

Internal combustion engine and method with improved combustion chamber

#117
20070012020
2007-01-18

Internal combustion engine and method with improved combustion chamber

#118
20060254554
2006-11-16

Rotary valve system and engine using the same

#119
20060254249
2006-11-16

Internal combustion engine and method with improved combustion chamber

#120
20060243229
2006-11-02

Internal combustion engine and method

#121
20050268609
2005-12-08

Split-cycle four-stroke engine

#122
20050126519
2005-06-16

Multi-chamber internal combustion engine