ClassID:

138599

F02B19/18 - CPC Classification

Classification description:

Engines characterised by precombustion chambers; Chamber shapes or constructions not specific to sub-groups  -  Transfer passages between chamber and cylinder

Recent Application in this class:
#1
20260126001
2026-05-07

SYSTEMS, APPARATUS, AND METHODS FOR INDUCING ENHANCED RADICAL IGNITION IN INTERNAL COMBUSTION ENGINES USING A RADICAL CHEMICALS GENERATOR

#2
20260092552
2026-04-02

PRECHAMBER ELEMENT, IGNITING DEVICE AND METHOD FOR ASSEMBLING AN IGNITING DEVICE

#3
20250389237
2025-12-25

AIR/STEAM ENGINE AND USE THEREOF

#4
20250382910
2025-12-18

METHOD OF PRODUCING ENGINE

#5
20250035030
2025-01-30

METHOD FOR PRODUCING AN INTERNAL COMBUSTION ENGINE COMPRISING A PRECOMBUSTION CHAMBER

#6
20240369011
2024-11-07

Prechamber spark plug for an internal combustion engine and internal combustion engine

#7
20240309800
2024-09-19

HOUSING COMPONENT FOR A PRECHAMBER COMPONENT OF A COMBUSTION ENGINE

#8
20240247608
2024-07-25

APPARATUSES AND METHODS FOR FUEL INJECTION AND/OR IGNITION IN AN INTERNAL COMBUSTION ENGINE

#9
20240209769
2024-06-27

PRE-CHAMBER ASSEMBLY

#10
20240110530
2024-04-04

Engine

#11
20240047950
2024-02-08

Pre-combustion chamber assembly with ignition electrodes for an internal combustion engine

#12
20240044283
2024-02-08

Electronic fuel injection type diesel engine

#13
20240044282
2024-02-08

SYSTEMS, APPARATUS, AND METHODS FOR INDUCING ENHANCED RADICAL IGNITION IN INTERNAL COMBUSTION ENGINES USING A RADICAL CHEMICALS GENERATOR

#14
20230417173
2023-12-28

Methods and systems for prechamber

#15
20230332533
2023-10-19

Spark-ignited reciprocating piston internal combustion engine comprising a pre-chamber ignition system

#16
20230304436
2023-09-28

Gaseous fuel reciprocating engine and operating methodology for reduced hydrogen flame speed

#17
20230279802
2023-09-07

Pre-Chamber Combustion Systems and Methods

#18
20230265780
2023-08-24

Internal combustion engine

#19
20230258119
2023-08-17

Ignition charge formation stabilization in gaseous fuel engine system

#20
20230243291
2023-08-03

PRECHAMBER JET DISTURBANCE INTENSIFIED COMBUSTION SYSTEM

#21
20230235695
2023-07-27

Prechamber spark plug having an optimized cap, and internal combustion engine

#22
20230184160
2023-06-15

IGNITION SYSTEM

#23
20230184159
2023-06-15

Engine and method of manufacturing the same

#24
20230175429
2023-06-08

ENGINE

#25
20230175428
2023-06-08

Engine

#26
20230167762
2023-06-01

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

#27
20230140543
2023-05-04

Pre-chamber spark plug for a combustion chamber of an internal combustion engine, internal combustion engine, and motor vehicle

#28
20230129282
2023-04-27

Intake device of internal combustion engine

#29
20230124163
2023-04-20

Spark ignited engine with a pre-chamber, a prechamber and an adapter insert for the engine

#30
20230103567
2023-04-06

Spark-ignited reciprocating-piston internal-combustion engine with a pre-chamber ignition system

#31
20230097104
2023-03-30

Pre-chamber spark plug for a combustion chamber of an internal combustion engine, internal combustion engine and motor vehicle

#32
20230070311
2023-03-09

Spark-ignited reciprocating piston internal combustion engine with a pre-chamber ignition system

#33
20230067522
2023-03-02

Internal combustion engine for a motor vehicle, in particular for a car

#34
20230042331
2023-02-09

SYSTEMS, APPARATUS, AND METHODS FOR INDUCING ENHANCED RADICAL IGNITION IN INTERNAL COMBUSTION ENGINES USING A RADICAL CHEMICALS GENERATOR

#35
20230016077
2023-01-19

Scavenged pre-chamber using oxygen generated by a molecular sieve process

#36
20230009522
2023-01-12

Pre-Chamber Spark Plug for a Combustion Chamber of a Combustion Engine, Combustion Engine and Motor Vehicle

#37
20220389858
2022-12-08

Flame triggered and controlled volumetric ignition

#38
20220364497
2022-11-17

Control device and control method for internal combustion engine

#39
20220349337
2022-11-03

Auxiliary chamber type internal combustion engine

#40
20220341371
2022-10-27

Method for operating an internal combustion engine

#41
20220275748
2022-09-01

IGNITION PROMOTER ASSEMBLY AND ENGINE HAVING THE SAME

#42
20220186658
2022-06-16

Pre-chamber arrangement for a gas engine and a gas engine

#43
20220178300
2022-06-09

Systems, apparatus, and methods for inducing enhanced radical ignition in internal combustion engines using a radical chemicals generator

#44
20220170410
2022-06-02

Method of providing passive pre-chamber ignition with varying nozzle sizes for internal combustion engine

#45
20220120209
2022-04-21

Combustion pre-chamber for an internal combustion engine

#46
20220120208
2022-04-21

Guide stud valve

#47
20220090552
2022-03-24

Device and method for controlling the start of an internal combustion engine

#48
20220074341
2022-03-10

Cylinder head for an internal combustion engine

#49
20220056836
2022-02-24

Cylinder head for an internal combustion engine

#50
20220056835
2022-02-24

Method and system for extending dilution limit of a prechamber spark ignition engine

#51
20220018279
2022-01-20

PRE-CHAMBER TYPE DIESEL ENGINE

#52
20220003176
2022-01-06

Methods and systems for a series gap igniter with a passive pre-chamber

#53
20220003147
2022-01-06

SUBCHAMBER DIESEL ENGINE

#54
20220003146
2022-01-06

Systems for a pre-chamber

#55
20210404373
2021-12-30

Precombustion chamber gas engine

#56
20210388755
2021-12-16

PRE-CHAMBER TYPE DIESEL ENGINE

#57
20210363914
2021-11-25

Precombustion chamber gas engine

#58
20210363913
2021-11-25

Internal combustion engine including multiple fuel injections external to a pre-chamber

#59
20210355860
2021-11-18

Pre-chamber arrangement for a gas engine and a gas engine

#60
20210355859
2021-11-18

Systems for a pre-chamber

#61
20210348544
2021-11-11

Pre-Chamber Spark Plug for a Combustion Chamber of an Internal Combustion Engine, in Particular of a Motor Vehicle

#62
20210340899
2021-11-04

Passive Pre-Chamber Ignition with Varying Nozzle Sizes for Internal Combustion Engine

#63
20210254543
2021-08-19

Valve ignition prechamber with a reversed directon of combustion

#64
20210239034
2021-08-05

Systems for a pre-chamber

#65
20210207523
2021-07-08

Pre-chamber body for an internal combustion engine

#66
20210131336
2021-05-06

SYSTEMS, APPARATUS, AND METHODS FOR INCREASING COMBUSTION TEMPERATURE OF FUEL-AIR MIXTURES IN INTERNAL COMBUSTION ENGINES

#67
20210079835
2021-03-18

Flame triggered and controlled volumetric ignition

#68
20210062710
2021-03-04

Methods and systems for an ignition arrangement of an internal combustion engine

#69
20210003066
2021-01-07

Methods and systems for a prechamber

#70
20200386147
2020-12-10

Pre-chamber spark plug for a combustion chamber of an internal combustion engine, in particular of a motor vehicle, and an internal combustion engine for a motor vehicle

#71
20200362750
2020-11-19

Ignition insert with an active pre-chamber

#72
20200362749
2020-11-19

Swirl chamber-type diesel engine

#73
20200362748
2020-11-19

Swirl chamber-type diesel engine

#74
20200276692
2020-09-03

FUEL-POWERED SETTING DEVICE AND METHOD FOR OPERATING SUCH A SETTING DEVICE

#75
20200240321
2020-07-30

Internal combustion engine for a motor vehicle

#76
20200200068
2020-06-25

Diesel engine with turbulent jet ignition

#77
20200182132
2020-06-11

Spark plug

#78
20200165961
2020-05-28

Pre-chamber type internal combustion engine

#79
20200165960
2020-05-28

Pre-chamber type internal combustion engine

#80
20200123963
2020-04-23

Pre-chamber assembly

#81
20200116074
2020-04-16

Pre-chamber ignition system having igniter with gas orifice structured for pre-expanding outgoing combustion gases

#82
20200080467
2020-03-12

Precombustion chamber gas engine

#83
20200080466
2020-03-12

Combustion pre-chamber assemblies for an internal combustion engine

#84
20190368410
2019-12-05

Precombustion chamber gas engine

#85
20190353089
2019-11-21

INTERNAL COMBUSTION ENGINE

#86
20190323416
2019-10-24

Precombustion chamber gas engine

#87
20190284985
2019-09-19

Combustion pre-chamber device for an internal combustion engine

#88
20190271262
2019-09-05

PRECHAMBER DEVICE FOR COMBUSTION ENGINE

#89
20190226387
2019-07-25

Ignition device and internal combustion engine

#90
20190203651
2019-07-04

Control system of internal combustion engine

#91
20190195120
2019-06-27

Internal combustion engine

#92
20190072025
2019-03-07

Valve ignition prechamber

#93
20190048784
2019-02-14

INTERNAL COMBUSION ENGINE

#94
20190003371
2019-01-03

Controlled air entrainment passage for diesel engines

#95
20180355800
2018-12-13

Fuel nozzle, fuel supply assembly thereof, and method of assembling a fuel nozzle

#96
20180334950
2018-11-22

GAS ENGINE

#97
20180258834
2018-09-13

Precombustion-chamber engine

#98
20180230895
2018-08-16

Internal combustion engine

#99
20180230894
2018-08-16

Vented pre-chamber assembly for an engine

#100
20180216518
2018-08-02

Remanufactured prechamber device and method

#101
20180187590
2018-07-05

Internal combustion engine with shrouded injection valve and precombustion chamber system

#102
20180149125
2018-05-31

Nozzle combustion shield

#103
20180038269
2018-02-08

Sparkplug assembly with prechamber volume

#104
20170350308
2017-12-07

Controlled air entrainment passage for diesel engines

#105
20170314456
2017-11-02

Internal combustion engine

#106
20170241380
2017-08-24

LIQUID FUEL BASED ENGINE SYSTEM USING HIGH VELOCITY FUEL VAPOR INJECTORS

#107
20170226922
2017-08-10

Lean-burn pre-combustion chamber

#108
20170167359
2017-06-15

Pre-chamber of an internal combustion engine

#109
20170167358
2017-06-15

Pre-chamber of internal combustion engine

#110
20170145900
2017-05-25

Multiple Pre-Chamber Ignition Systems and Methods

#111
20170145899
2017-05-25

Multipoint ignition systems and methods

#112
20170138251
2017-05-18

PRE-CHAMBER NOZZLE

#113
20170101967
2017-04-13

PRECHAMBER INTERNAL REFORMER CATALYST

#114
20170101923
2017-04-13

MULTIPLE PRECHAMBERS WITH INTERACTING JETS

#115
20170096932
2017-04-06

Passive prechamber direct injection combustion

#116
20160363041
2016-12-15

Combustion Pre-Chamber Assembly Including Fluidic Oscillator

#117
20160348570
2016-12-01

Fuel Combustion System, Nozzle for Prechamber Assembly Having Coolant Passage in Communication with Orifice Passage, and Method of Making Same

#118
20160326946
2016-11-10

Fuel combustion system, nozzle for prechamber assembly with curved orifices, and method of making same

#119
20160305311
2016-10-20

Crossover valve in double piston cycle engine

#120
20160273443
2016-09-22

Parallel prechamber ignition system

#121
20160245151
2016-08-25

Pre-combustion-chamber type gas engine

#122
20160230647
2016-08-11

Piston for prechamber-type gas engine and prechamber-type gas engine

#123
20160230646
2016-08-11

Combustion system, nozzle for prechamber assembly, and method of making same

#124
20160215683
2016-07-28

Internal combustion engine

#125
20160069251
2016-03-10

PRESSURE-LIMITING DEVICE FOR PRE-COMBUSTION CHAMBER

#126
20160061096
2016-03-03

PRE-COMBUSTION CHAMBER WITH NOx REDUCING CATALYST

#127
20160053673
2016-02-25

Active scavenge prechamber

#128
20160053671
2016-02-25

Prechamber ignition system

#129
20160053670
2016-02-25

Method and apparatus for achieving high power flame jets while reducing quenching and autoignition in prechamber spark plugs for gas engines

#130
20160053668
2016-02-25

PRECHAMBER ASSEMBLY FOR ENGINE

#131
20160047295
2016-02-18

Prechamber ignition system

#132
20160047294
2016-02-18

Active scavenge prechamber

#133
20160003117
2016-01-07

Efficiency and emissions improvements for natural gas conversions of EMD 2-cycle medium speed engines

#134
20150219004
2015-08-06

Combustion control via homogeneous combustion radical ignition (HCRI) or partial HCRI in cyclic IC engines

#135
20150184578
2015-07-02

Precombustion chamber gas engine

#136
20150176474
2015-06-25

Method and apparatus for achieving high power flame jets while reducing quenching and autoignition in prechamber spark plugs for gas engines

#137
20150040845
2015-02-12

Multi-chamber igniter

#138
20150034043
2015-02-05

Subchamber type combustion chamber for diesel engine

#139
20140338646
2014-11-20

Crossover valve in double piston cycle engine

#140
20140261298
2014-09-18

Pre-chamber for internal combustion engine

#141
20140261296
2014-09-18

Active scavenge prechamber

#142
20140251259
2014-09-11

Prechamber system for an internal combustion engine

#143
20140102404
2014-04-17

Prechamber ignition system

#144
20140060480
2014-03-06

Internal combustion engine with shrouded injection valve and precombustion chamber system

#145
20140060478
2014-03-06

Internal combustion engine with shrouded injection valve and precombustion chamber system

#146
20130306045
2013-11-21

Combustion Control via Homogeneous Combustion Radical Ignition (HCRI) or Partial HCRI in Cyclic IC Engines

#147
20130276745
2013-10-24

Internal combustion engine

#148
20130055986
2013-03-07

Method and apparatus for achieving high power flame jets while reducing quenching and autoignition in prechamber spark plugs for gas engines

#149
20130019837
2013-01-24

Combustion chamber for large gas engine

#150
20130000598
2013-01-03

DIVIDED-CHAMBER GAS ENGINE

#151
20120325179
2012-12-27

Pre-combustion chamber tip

#152
20120060791
2012-03-15

LASER SPARK PLUG AND PRECHAMBER MODULE FOR SAME

#153
20110308505
2011-12-22

Split-cycle engine with crossover passage combustion

#154
20110308489
2011-12-22

Laser spark plug and prechamber module for same

#155
20110271930
2011-11-10

Gas engine with spark plug and bore-cooling holes

#156
20110232589
2011-09-29

Combustion control via homogeneous combustion radical ignition (HCRI) or partial HCRI in cyclic IC engines

#157
20110146618
2011-06-23

Pre-combustion device for an internal combustion engine

#158
20110120404
2011-05-26

Laser spark plug

#159
20110108012
2011-05-12

INTERNAL COMBUSTION ENGINE AND WORKING CYCLE

#160
20100326400
2010-12-30

High Efficiency Pre-Chamber Internal Combustion Engines and Methods Thereof

#161
20100319655
2010-12-23

Internal combustion engine with shrouded injection valve and pre-combustion chamber system

#162
20090228191
2009-09-10

Combustion control via homogeneous combustion radical ignition (HCRI) or partial HCRI in cyclic IC engines

#163
20090205468
2009-08-20

Ignition system for internal combustion engine and method for installation of same

#164
20090133666
2009-05-28

HOMOGENEOUS CHARGE COMPRESSION IGNITION ENGINE WITH COMBUSTION PHASING

#165
20090025673
2009-01-29

Dual-level combustion chamber system, for fastener driving tool, having dual-level rotary valve mechanism incorporated therein

#166
20080168963
2008-07-17

Method and apparatus for enhancing the efficiency of operation of an internal combustion engine

#167
20070272200
2007-11-29

Independent combustion chamber-type internal combustion engine

#168
20070235002
2007-10-11

Combustion control via homogeneous combustion radical ignition (HCRI) or partial HCRI in cyclic IC engines

#169
20060037567
2006-02-23

Homogeneous charge compression ignition engine with combustion phasing

#170
18679767
2025-07-15

Extended-life prechamber sparkplug for engine system and engine system operating method

#171
18358766
2024-05-28

Pre-chamber ignition device with variable volume capability for internal combustion engines

#172
18147565
2023-10-03

Purge device for passive or active prechambers

#173
17660958
2023-08-15

Spark ignition direct injection engine with active pre-chamber

#174
17303563
2022-05-03

Systems and methods for active pre-chamber ignition

#175
17233191
2022-04-05

Systems and methods for adjustable pre-chamber

#176
16841991
2020-09-08

Spark plug that suppresses pre-ignition and misfires