ClassID:

138897

F02B2075/027 - CPC Classification

Classification description:

Other engines; Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four

Recent Application in this class:
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SSR1 AUTOCYCLE DUAL MOTOR HYBRID

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STRATIFIED NITROGEN ENRICHED AIR (NEA) STRATEGIES AND METHODS TO REDUCE NOX EMISSIONS FROM ENGINES

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20250122817
2025-04-17

4-STROKE 3-CYLINDER ENGINE

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20250083771
2025-03-13

Engine Configurations for Snowmobiles

#5
20250083770
2025-03-13

Engine Mounting Systems for Snowmobiles

#6
20240384691
2024-11-21

MISFIRE DETECTION APPARATUS AND MISFIRE DETECTION METHOD FOR MULTI-CYLINDER ENGINE

#7
20240328365
2024-10-03

Internal combustion engine system

#8
20240309801
2024-09-19

Explosion Safe Electrolysis Unit

#9
20240301815
2024-09-12

Ultra Low Enhancement Gas Injection

#10
20240200519
2024-06-20

DISTRIBUTION CYLINDER

#11
20230347895
2023-11-02

Method for controlling a powertrain

#12
20230323807
2023-10-12

QUADRUPLE ACTING SCOTCH YOKE ENGINE

#13
20230272739
2023-08-31

ORBITAL-EPICYCLE CRANKSHAFT WITH A REVERSIBLE AND ADJUSTABLE CONSTANT VOLUME COMBUSTION CYCLE AT TDC OR BDC

#14
20230265802
2023-08-24

Vibration reduction in internal combustion engine

#15
20230243317
2023-08-03

Method for managing start up of a four-stroke engine

#16
20230243297
2023-08-03

System and method for opposed piston barrel engine

#17
20230243284
2023-08-03

Apparatus for reducing greenhouse gas emission in vessel cooperated with exhaust gas recirculation and intelligent control by exhaust recycling and vessel including the same

#18
20230241943
2023-08-03

AUXILIARY ENGINE ELECTRIC CAR HEATING SYSTEM

#19
20230203981
2023-06-29

GAS EXCHANGE IN INTERNAL COMBUSTION ENGINES FOR INCREASED EFFICIENCY

#20
20230096904
2023-03-30

Two-cylinder reciprocating engine

#21
20220341361
2022-10-27

Explosion safe electrolysis unit

#22
20220243650
2022-08-04

ENGINE WITH SLIDER-CRANK MECHANISM

#23
20220195910
2022-06-23

General-purpose engine

#24
20220154671
2022-05-19

Internal combustion engine and a vehicle

#25
20220128019
2022-04-28

Engine exhaust gas recirculation system

#26
20220082048
2022-03-17

Camshaft for internal-combustion engine

#27
20220018280
2022-01-20

Four-stroke relative motion cylinder with dedicated compression space

#28
20220003162
2022-01-06

Multiple cylinder engine

#29
20220003161
2022-01-06

Multiple cylinder engine

#30
20220003160
2022-01-06

Multiple cylinder engine

#31
20220003158
2022-01-06

Quadruple acting scotch yoke engine

#32
20210404396
2021-12-30

Method for synchronizing an internal combustion engine

#33
20210362721
2021-11-25

Method for controlling a powertrain system during upshifting

#34
20210355892
2021-11-18

Internal combustion engine

#35
20210340930
2021-11-04

Combustion engine

#36
20210340902
2021-11-04

Rotary roller motor

#37
20210332772
2021-10-28

Parabolic combustion engine

#38
20210310886
2021-10-07

Method for measuring automobile horsepower and its application on chassis dynamometers

#39
20210301776
2021-09-30

Detection apparatus and control apparatus

#40
20210231048
2021-07-29

DOUBLE ACTING PISTON ENGINES

#41
20210215089
2021-07-15

General-purpose engine

#42
20210164387
2021-06-03

Rotary piston engine

#43
20210115845
2021-04-22

General purpose engine

#44
20210095604
2021-04-01

Control method of variable stroke engine for reforming high-octane fuel under the flexible cylinder engine (FCE) mode

#45
20210087996
2021-03-25

Internal combustion engine

#46
20210065476
2021-03-04

Diagnosis of a charge cycle behavior of an internal combustion engine

#47
20210054792
2021-02-25

Internal combustion engine system

#48
20210054780
2021-02-25

Internal-combustion engine and drive system

#49
20210048045
2021-02-18

Method of gas exchange for four-stroke engine

#50
20210033038
2021-02-04

Engine control method and engine control device

#51
20210010449
2021-01-14

ENGINE PHASE DETERMINATION AND CONTROL

#52
20200386152
2020-12-10

Adaptive linear linked piston electric power generator

#53
20200378300
2020-12-03

Rotary roller motor (RRM)

#54
20200340427
2020-10-29

Fuel control system

#55
20200300140
2020-09-24

SELECTIVE CATALYTIC REDUCTION SYSTEM AND A METHOD FOR NOx REDUCTION

#56
20200277909
2020-09-03

Internal combustion engine and method for controlling such an internal combustion engine

#57
20200271076
2020-08-27

Internal combustion engine

#58
20200263602
2020-08-20

Piston internal combustion engine with generator

#59
20200240325
2020-07-30

Expanded torque system of internal combustion engine

#60
20200240297
2020-07-30

External heat source engine with slide valves

#61
20200217267
2020-07-09

Parabolic combustion engine

#62
20200217244
2020-07-09

Internal combustion engine arrangement

#63
20200191044
2020-06-18

Method of a controlled engine, engine and variants

#64
20200182172
2020-06-11

Powertrain engine control method and vehicle operated thereby

#65
20200179763
2020-06-11

Multipurpose low emission submersible engine and aquatic craft using same

#66
20200173319
2020-06-04

Four stroke engine, handheld work apparatus having a four stroke engine, and method for operating a four stroke engine

#67
20200158013
2020-05-21

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

#68
20200141378
2020-05-07

Ignition source adapted for positioning within a combustion chamber

#69
20200132017
2020-04-30

Internal combustion engine

#70
20200080471
2020-03-12

METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE, DEVICE, AND INTERNAL COMBUSTION ENGINE

#71
20200063612
2020-02-27

Balancer device for internal combustion engine

#72
20200032682
2020-01-30

Crankcase ventilation systems

#73
20200011235
2020-01-09

Internal combustion engine

#74
20190353094
2019-11-21

V-type 4-stroke internal combustion engine with 20 cylinders

#75
20190345890
2019-11-14

Premixed compression ignition engine and method for controlling premixed compression ignition engine

#76
20190345879
2019-11-14

Control system for internal combustion engines

#77
20190338722
2019-11-07

Parabolic combustion engine

#78
20190331055
2019-10-31

Control device for fuel injection device

#79
20190309680
2019-10-10

Opposed-piston internal combustion engine

#80
20190309679
2019-10-10

Internal combustion engine with paired, parallel, offset pistons

#81
20190285016
2019-09-19

Systems and methods for compression heated air

#82
20190284987
2019-09-19

Liquid and gaseous multi-fuel compression ignition engines

#83
20190234322
2019-08-01

HHO Precision Injection System

#84
20190234298
2019-08-01

Temperature control for HHO injection gas

#85
20190234297
2019-08-01

Onboard HHO gas generation system for heavy duty trucks

#86
20190233956
2019-08-01

Rollover safe electrolysis unit for vehicles

#87
20190233951
2019-08-01

Explosion safe electrolysis unit

#88
20190048817
2019-02-14

Engine self-adjustment system

#89
20190032609
2019-01-31

Air cleaner

#90
20190032553
2019-01-31

Infinitely variable compression ratio mechanism of a reciprocating double-acting piston-type gas compressor

#91
20180363597
2018-12-20

Internal combustion engine having air cleaner

#92
20180363548
2018-12-20

Internal combustion engine with paired, parallel, offset pistons

#93
20180320579
2018-11-08

Four stroke internal combustion engine

#94
20180318650
2018-11-08

Multipurpose low emission submersible engine and aquatic craft using same

#95
20180291834
2018-10-11

Parabolic combustion engine

#96
20180274456
2018-09-27

Four-stroke internal combustion engine thereto related vehicle and method

#97
20180223787
2018-08-09

Process for managing the re-start of an internal combustion engine in a start and stop system

#98
20180216551
2018-08-02

Internal combustion engine control for improved fuel efficiency

#99
20180202329
2018-07-19

Internal combustion engine control system

#100
20180187580
2018-07-05

Compression-release engine brake system for lost motion rocker arm assembly and method of operation thereof

#101
20180179963
2018-06-28

Four-stroke internal combustion engine including variable compression ratio and a vehicle

#102
20180179893
2018-06-28

MOMENT-CANCELLING 4-STROKE ENGINE

#103
20180163623
2018-06-14

Infinitely variable compression ratio and single stroke length mechanism or dual stroke length mechanism of reciprocating 2-cycle or 4-cycle internal combustion engine

#104
20180149047
2018-05-31

Method and device for operating a drive unit, drive unit, motor vehicle

#105
20180128221
2018-05-10

Suction head for connection to a fuel hose

#106
20180094577
2018-04-05

Internal combustion engine with paired, parallel, offset pistons

#107
20180087462
2018-03-29

Control device

#108
20180058347
2018-03-01

System and method for operating deactivated cylinders

#109
20180058346
2018-03-01

Variable displacement engine control

#110
20180058313
2018-03-01

Portable four-stroke engine

#111
20180051220
2018-02-22

SMALL INTERNAL COMBUSTION ENGINE FUELS

#112
20180045158
2018-02-15

Starter device for an internal combustion engine and backpack power tool with an internal combustion engine and with a starter device for the internal combustion engine

#113
20180045112
2018-02-15

Helical follower internal combustion engine

#114
20180016952
2018-01-18

SEALING UNIT AND FLUID ENGINE

#115
20170362971
2017-12-21

Compression-release engine brake system for lost motion rocker arm assembly and method of operation thereof

#116
20170343091
2017-11-30

Orbitual crankshaft with extended constant volume combustion cycle

#117
20170341723
2017-11-30

Outboard motor

#118
20170298910
2017-10-19

Energy-saving equilibrium mechanism, rotating machine and method of implementation

#119
20170298842
2017-10-19

Air-intake shutoff valves for engines

#120
20170211515
2017-07-27

Recirculating noble gas internal combustion power cycle

#121
20170211469
2017-07-27

INTERNAL COMBUSTION ENGINE

#122
20170204797
2017-07-20

Techniques for controlling a dedicated EGR engine

#123
20170204347
2017-07-20

Motorcycle engine lubricant

#124
20170191411
2017-07-06

Four-stroke reciprocating piston engine in a V configuration having 16 cylinders

#125
20170191410
2017-07-06

Four-stroke reciprocating piston engine in a V configuration having 20 cylinders

#126
20170191388
2017-07-06

Lubricating structure for four-stroke engine

#127
20170183991
2017-06-29

System for variable actuation of a valve of an internal-combustion engine

#128
20170173663
2017-06-22

Apparatus for forming a blank for finish forging for a forged crankshaft for a 4-cylinder engine, and method for manufacturing a forged crankshaft for a 4-cylinder engine using the same

#129
20170167436
2017-06-15

Efficient thermal energy power device and work-doing method therefor

#130
20170167366
2017-06-15

Internal combustion engine

#131
20170159560
2017-06-08

Hypocycloidal methods and designs for increasing efficiency in engines

#132
20170159557
2017-06-08

Gas flow and energy conversion apparatus

#133
20170159518
2017-06-08

Method for mounting an oil sump and arrangement of an oil sump on an assembly formed by a crankcase and a flywheel housing

#134
20170138299
2017-05-18

Piston arrangement and internal combustion engine

#135
20170138286
2017-05-18

Control apparatus and control method for internal combustion engine

#136
20170127663
2017-05-11

SYSTEM AND METHOD FOR ERADICATING BURROWING RODENTS USING ENGINE EXHAUST GAS

#137
20170122237
2017-05-04

Internal combustion engine control for improved fuel efficiency

#138
20170122196
2017-05-04

OUTBOARD MOTOR WITH BUILT IN FUEL TANK

#139
20170107874
2017-04-20

Four-cycle OHV engine

#140
20170101928
2017-04-13

Four-cycle multi-cylinder engine

#141
20170096933
2017-04-06

Hybrid cycle combustion engine and methods

#142
20170093246
2017-03-30

Electromagnetic rotor drive assembly

#143
20170082523
2017-03-23

Engine torque estimator for internal combustion engine and method of estimating engine torque for internal combustion engine

#144
20170074162
2017-03-16

Combined-cycle combustion control type three-cylinder engine and method for controlling the same

#145
20170067378
2017-03-09

Four-cycle OHV engine

#146
20170037794
2017-02-09

Small engine control system and method for enabling the use of traditional crankshaft

#147
20170022882
2017-01-26

Liquid and gaseous multi-fuel compression ignition engines

#148
20170016387
2017-01-19

Internal Combustion Engine with Integrated Air Compressor

#149
20170009649
2017-01-12

MOMENT-CANCELLING 4-STROKE ENGINE SYSTEMS

#150
20170009648
2017-01-12

Four-stroke internal combustion engine with variable compression ratio

#151
20170002725
2017-01-05

Method and apparatus for internal combustion engine system with improved turbocharging

#152
20170002702
2017-01-05

Combustion engine, vehicle comprising the combustion engine and method for controlling the combustion engine

#153
20160356187
2016-12-08

Compression-release engine brake system for lost motion rocker arm assembly and method of operation thereof

#154
20160333778
2016-11-17

Internal combustion engine

#155
20160333776
2016-11-17

Internal combustion engine

#156
20160298561
2016-10-13

Intake air mass estimation apparatus for motorcycle

#157
20160281554
2016-09-29

Lubricating device of internal combustion engine

#158
20160222880
2016-08-04

System for a mechanical conversion of an internal combustion engine of 4 strokes into 8 strokes

#159
20160146139
2016-05-26

Method and system for air charge estimation

#160
20160146008
2016-05-26

Moment-cancelling 4-stroke engine

#161
20160130994
2016-05-12

Four-stroke engine

#162
20160123220
2016-05-05

Four-cycle internal combustion engine with curtailed intake process

#163
20160108329
2016-04-21

SMALL INTERNAL COMBUSTION ENGINE FUELS

#164
20160047300
2016-02-18

Internal combustion engine

#165
20150369180
2015-12-24

Systems and methods for stopping and starting an engine with dedicated EGR

#166
20150330296
2015-11-19

System for a mechanical conversion of an internal combustion engine of 4 strokes into 8 strokes

#167
20150136067
2015-05-21

HIGH EFFICIENCY INTERNAL EXPLOSION ENGINE

#168
20150136065
2015-05-21

Lubrication system for four-stroke engine

#169
20150128886
2015-05-14

Oil passage structure of dry sump engine and oil passage structure of V-shaped dry sump engine

#170
20150090216
2015-04-02

Internal combustion engine

#171
20150075476
2015-03-19

FOUR-CYCLE ENGINE AND ENGINE GENERATOR

#172
20150047598
2015-02-19

CRANKCASE COVER FOR A FOUR-STROKE ENGINE

#173
20150027116
2015-01-29

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

#174
20140360454
2014-12-11

Engine system having a backflow valve and method for operation thereof

#175
20140216427
2014-08-07

Accommodating piston seat for differential-stroke cycle engines

#176
20140209053
2014-07-31

Apparatuses, systems, and methods for crankcase oil sump overfill protection

#177
20140069358
2014-03-13

Cylinder liner having intake ports for improved scavenging

#178
20130276762
2013-10-24

Symmetric opposed-piston, opposed-cylinder engine

#179
20130206113
2013-08-15

Method and means for controlling combustion

#180
20130183183
2013-07-18

Rotary engine

#181
20130139796
2013-06-06

Four-stroke engine

#182
20130112175
2013-05-09

Constructions for piston thermal management

#183
20130104542
2013-05-02

EXHAUST GAS RECIRCULATION IN A RECIPROCATING ENGINE HAVING A MULTIPLE-STROKE CONFIGURATION

#184
20130028774
2013-01-31

Rotary internal combustion engine with phasing gear

#185
20130008408
2013-01-10

High efficiency internal explosion engine

#186
20120306207
2012-12-06

Reciprocating internal combustion engine with two-stage exhaust system

#187
20120266848
2012-10-25

Lean combustion method for a reciprocating internal combustion engine

#188
20120240887
2012-09-27

Device and method configured to control valve operation in a piston engine

#189
20120192830
2012-08-02

INTERNAL COMBUSTION ROTARY PISTON ENGINE

#190
20120167841
2012-07-05

Control strategy for multi-stroke engine system

#191
20120167811
2012-07-05

Supercharged engine

#192
20120160209
2012-06-28

TURBINE HAVING COOPERATING AND COUNTER-ROTATING ROTORS IN A SAME PLANE

#193
20120060806
2012-03-15

Two-stroke engine

#194
20120006622
2012-01-12

Method and apparatus for oiling rotating or oscillating components

#195
20110283968
2011-11-24

Oil supply system for an engine

#196
20110253073
2011-10-20

Multi-stroke internal combustion engine

#197
20110214297
2011-09-08

Engine-driven cutter

#198
20110213540
2011-09-01

Internal combustion engine control for improved fuel efficiency

#199
20110212030
2011-09-01

Nucleic acid ligand complexes

#200
20110192362
2011-08-11

Water-cooled four-cycle engine

#201
20110132225
2011-06-09

ALTITUDE COMPENSATION SYSTEM FOR CONTROLLING SMOKE EMISSIONS FROM A NATURALLY ASPIRATED RAILROAD LOCOMOTIVE

#202
20110126801
2011-06-02

METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE

#203
20110073064
2011-03-31

Integrally cast block and gaseous fuel injected generator engine

#204
20110056462
2011-03-10

FOUR CYCLE ENGINE CARBURETORS

#205
20100263628
2010-10-21

Ignition control apparatus for general-purpose engine

#206
20100236517
2010-09-23

Four-cycle engine

#207
20100236514
2010-09-23

SEAL FOR A ROTARY VALVE FOR AN INTERNAL COMBUSTION ENGINE

#208
20100162968
2010-07-01

ANAEROBIC DEFLAGRATION INTERNAL PISTON ENGINES, ANAEROBIC FUELS AND VEHICLES COMPRISING THE SAME

#209
20100095914
2010-04-22

EXTERNAL COMPRESSION TWO-STROKE INTERNAL COMBUSTION ENGINE

#210
20100083934
2010-04-08

Combustion method for a reciprocating piston internal combustion engine

#211
20100063706
2010-03-11

Multi-stroke internal combustion engine

#212
20100059015
2010-03-11

Multi-stroke internal combustion engine

#213
20100050983
2010-03-04

FOUR-STROKE INTERNAL COMBUSTION ENGINE WITH NOVEL INTAKE AND EXHAUST STROKES

#214
20100050978
2010-03-04

Lubrication system for the piston ring and cylinder liner of an internal combustion engine

#215
20090320791
2009-12-31

Four-Stroke Engine

#216
20090308366
2009-12-17

GASOLINE CONVERSION SYSTEM FOR INTERNAL COMBUSTION ENGINES THAT OPERATE WITH FUELS BASED ON METHANOL AND OIL

#217
20090293850
2009-12-03

Supercharged engine

#218
20090277434
2009-11-12

Control strategy for multi-stroke engine system

#219
20090266330
2009-10-29

Monolithic block and valve train for a four-stroke engine

#220
20090250046
2009-10-08

SPLIT FOUR STROKE ENGINE

#221
20090241880
2009-10-01

Rocker shaft support structure in four-cycle engine

#222
20090223483
2009-09-10

Power linkage assembly for a high efficiency internal explosion engine

#223
20090118481
2009-05-07

High Affinity Nucleic Acid Ligands To Lectins

#224
20090114172
2009-05-07

Internal combustion engine

#225
20090038584
2009-02-12

Internal combustion engine

#226
20080271711
2008-11-06

Four-Stroke Free Piston Engine

#227
20080264392
2008-10-30

Apparatus for an internal combustion engine

#228
20080223333
2008-09-18

Control method for the intake and exhaust valves of an engine and internal combustion engine comprising such valves

#229
20080202486
2008-08-28

Hybrid cycle combustion engine and methods

#230
20080202377
2008-08-28

Altitude compensation system for controlling smoke emissions from a naturally aspirated railroad locomotive

#231
20080202376
2008-08-28

Altitude compensation system for naturally aspirated railroad locomotive

#232
20080149078
2008-06-26

EXHAUST GAS RECIRCULATION METHODS AND APPARATUS FOR REDUCING NOx EMISSIONS FROM INTERNAL COMBUSTION ENGINES

#233
20080127915
2008-06-05

Motor engine family

#234
20080096718
2008-04-24

Engine

#235
20080087257
2008-04-17

Internal combustion engine with shared holding tank in cylinder head for elevated expansion ratio

#236
20080072869
2008-03-27

Multicylinder internal combustion engine

#237
20080066723
2008-03-20

Internal combustion engine with a supercharger

#238
20080032841
2008-02-07

Engine

#239
20080027620
2008-01-31

Piston Type Aircraft Engine

#240
20080022666
2008-01-31

Balanced partial two-stroke engine

#241
20070283694
2007-12-13

Method for controlling a supercharged engine, particularly an indirect injection engine, and engine using such a method

#242
20070240692
2007-10-18

Four-stroke engine for an outboard motor

#243
20070227496
2007-10-04

Method for operating an internal combustion engine

#244
20070215119
2007-09-20

Method of controlling the intake and/or the exhaust of at least one deactivated cylinder of an internal-combustion engine

#245
20070181098
2007-08-09

INTERNAL COMBUSTION ENGINE WITH THREE VALVES PER CYLINDER

#246
20070163531
2007-07-19

Method for stopping and starting an internal combustion engine having a variable event valvetrain

#247
20070131184
2007-06-14

Single-ended barrel engine with double-ended, double roller pistons

#248
20070113803
2007-05-24

Air-hybrid and utility engine

#249
20070105465
2007-05-10

Watercraft Having a Four Stroke Engine with a Supercharger

#250
20070102215
2007-05-10

Induction System for a Four Cycle Engine

#251
20070095335
2007-05-03

Four-cycle engine and motorcycle comprising four-cycle engine

#252
20070068465
2007-03-29

Watercraft having a four stroke engine with a supercharger

#253
20070065046
2007-03-22

Data capture apparatus with handwritten data receiving component

#254
20070044739
2007-03-01

Machine with a reciprocating piston

#255
20070021327
2007-01-25

Methods and compositions for treatment of tumors using nucleic acid ligands to platelet-derived growth factor

#256
20060291752
2006-12-28

Apparatus and method for collection of handwritten data

#257
20060272598
2006-12-07

Modulated combined lubrication and control pressure system for two-stroke/four-stroke switching

#258
20060254556
2006-11-16

Small four-stroke gasoline engine with oil mist lubrication

#259
20060249119
2006-11-09

Four-stroke engine

#260
20060219215
2006-10-05

Method of operating an internal combustion engine

#261
20060214054
2006-09-28

Piston type aircraft engine

#262
20060201489
2006-09-14

Method for operating an internal combustion engine

#263
20060201476
2006-09-14

Method for operating an internal combustion engine

#264
20060196465
2006-09-07

Rotary engine for motor vehicles with very low consumption and pollution rate

#265
20060169226
2006-08-03

Four stroke internal combustion engine with inlet air compression chamber

#266
20060168957
2006-08-03

Split four stroke engine

#267
20060150930
2006-07-13

Four cycle, piston-driven, rotary ported intake and exhaust super atmospherically charged on demand internal combustion engine

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