ClassID:

140742

F02M25/03 - CPC Classification

Classification description:

Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture; Adding fuel and water emulsion, water or steam; Adding water into the cylinder or the pre-combustion chamber

Recent Application in this class:
#1
20260049586
2026-02-19

METHOD FOR DIAGNOSING A WATER INJECTION SYSTEM OF AN INTERNAL COMBUSTION ENGINE OF A HYBRID ELECTRIC VEHICLE, AND HYBRID ELECTRIC VEHICLE

#2
20250389237
2025-12-25

AIR/STEAM ENGINE AND USE THEREOF

#3
20250257698
2025-08-14

SYSTEM AND METHOD FOR INJECTING CONDENSATE IN CYLINDER OF A RECIPROCATING ENGINE

#4
20250215842
2025-07-03

INJECTION DEVICE

#5
20250179967
2025-06-05

MULTIFUEL CLOSED-LOOP THERMAL CYCLE PISTON ENGINE, SYSTEM AND METHOD

#6
20240247618
2024-07-25

Catalyst mounting in internal combustion engines

#7
20230399964
2023-12-14

Internal combustion engine system

#8
20230313761
2023-10-05

Internal combustion engine

#9
20230279804
2023-09-07

Split cycle internal combustion engine provided with a water injection

#10
20230250778
2023-08-10

Methods and devices for reducing NOx emissions produced by diesel engines

#11
20230228224
2023-07-20

Homogeneous charge compression ignition (HCCI-type) combustion system for an engine and powertrain using wet-alcohol as a fuel and including hot assist ignition

#12
20230018213
2023-01-19

EMISSION-FREE DEVICES AND METHOD FOR PERFORMING MECHANICAL WORK AND FOR GENERATING ELECTRICAL AND THERMAL ENERGY

#13
20230010136
2023-01-12

SYSTEM FOR CONTROLLING HYDROGEN COMBUSTION IN A HYDROGEN INTERNAL COMBUSTION ENGINE

#14
20220251463
2022-08-11

REDUCTION OF POLLUTANT EMISSIONS OF INTERNAL COMBUSTION ENGINES

#15
20220213849
2022-07-07

Wet biofuel compression ignition

#16
20220213843
2022-07-07

Method for determining an air mass and direct water injection system

#17
20220154088
2022-05-19

Ammonia combustion and methods relating thereto

#18
20220065200
2022-03-03

ENGINE SYSTEM

#19
20220065199
2022-03-03

ENGINE SYSTEM

#20
20220003156
2022-01-06

Device for Injecting Water into a Combustion Chamber or into an Intake Tract of an Internal Combustion Engine

#21
20210324810
2021-10-21

Method and Device to Control the Injection of a Non-Combustible Fluid Into an Internal Combustion Engine

#22
20210324809
2021-10-21

Method and Device for Controlling the Injecting of a Non-Combustible Fluid

#23
20210277848
2021-09-09

WATER DELIVERY SYSTEM FOR DELIVERING DEMINERALIZED WATER TO A COMBUSTION ENGINE, AND DEMINERALIZATION APPARATUS

#24
20210254589
2021-08-19

Injector and method for injecting fuel and an additional fluid

#25
20210254541
2021-08-19

INTERNALLY COOLED INTERNAL COMBUSTION ENGINE AND METHOD THEREOF

#26
20210140393
2021-05-13

Internal combustion engine provided with a water-based operating liquid feeding system having a heating device

#27
20210095608
2021-04-01

Control device and control method

#28
20210025305
2021-01-28

Ashing a particulate filter in a motor vehicle

#29
20210010413
2021-01-14

Combustion chamber structure of engine

#30
20200386174
2020-12-10

Activation response of injectors of an internal combustion engine

#31
20200362798
2020-11-19

Spark-ignition internal combustion engine having urea introduction device and method for operating an internal combustion engine of this type

#32
20200355141
2020-11-12

Cylinder specific engine cooling

#33
20200347790
2020-11-05

NON-COMBUSTIBLE FLUID INJECTION METHOD FOR AN INTERNAL COMBUSTION ENGINE

#34
20200173357
2020-06-04

Internal combustion engine with two working spaces of a cylinder

#35
20200149498
2020-05-14

Prechamber fluid injection

#36
20200132022
2020-04-30

Internal combustion engine provided with a system supplying a water-based operator liquid

#37
20200088139
2020-03-19

WATER INJECTION SYSTEM

#38
20200080520
2020-03-12

System for storing an aqueous solution on-board a vehicle

#39
20200056566
2020-02-20

Method and Device for Increasing the Global Compression Ratio of an Internal Combustion Engine in the Case of Varying Fuel Quality

#40
20200056535
2020-02-20

Internal combustion steam engine

#41
20200040850
2020-02-06

Premixed compression ignition engine system

#42
20200032745
2020-01-30

Water tank device for an internal combustion engine with water injection

#43
20200003112
2020-01-02

INTERNALLY COOLED HIGH COMPRESSION LEAN-BURNING INTERNAL COMBUSTION ENGINE

#44
20190383238
2019-12-19

Internal combustion engine/generator with pressure boost

#45
20190345890
2019-11-14

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

#46
20190323455
2019-10-24

Continuously operating water recovery apparatus for a motor vehicle

#47
20190316547
2019-10-17

Water Distributor for an Internal Combustion Engine

#48
20190291666
2019-09-26

Method and system for water collection and usage on-board a vehicle

#49
20190257271
2019-08-22

Method and system for determining knock control fluid composition

#50
20190234299
2019-08-01

Method and device for water injection

#51
20190203664
2019-07-04

System and method for injecting an aqueous solution on-board a vehicle

#52
20190186421
2019-06-20

Method of controlling water injector for preventing damage to catalyst for exhaust gas purification and engine driven by method

#53
20190120177
2019-04-25

Method and device for operating a combustion engine

#54
20190113006
2019-04-18

Radiator-Less Liquid Cooling

#55
20190113005
2019-04-18

Method and system for engine water injection

#56
20190107080
2019-04-11

System for storing an auxiliary liquid and supplying same to an internal combustion engine

#57
20190056106
2019-02-21

Emission-free devices and method for performing mechanical work and for generating electrical and thermal energy

#58
20190040820
2019-02-07

Emulsifying system and emulsifying method

#59
20180274488
2018-09-27

Method and system for engine water injection

#60
20180258845
2018-09-13

Homogeneous charge compression ignition linear generator

#61
20180171937
2018-06-21

Method and system for engine water injection

#62
20180171935
2018-06-21

Method and system for engine water injection

#63
20180112631
2018-04-26

Method for knock control of an internal combustion engine

#64
20180100457
2018-04-12

Engine provided with CDA apparatus and water pump and method for controlling the same

#65
20180094593
2018-04-05

Method and system for controlling water injection

#66
20180080414
2018-03-22

System and methods for extracting water from a mechanical air conditioning system for water injection

#67
20180079281
2018-03-22

System and methods for extracting water from a HVAC system for water injection

#68
20180079280
2018-03-22

System and methods for extracting water from an electric air conditioning system for water injection

#69
20180073468
2018-03-15

PNEUMATIC HYBRID I.C. ENGINE HAVING WATER INJECTION

#70
20180066609
2018-03-08

Method and system for engine water injection

#71
20180058383
2018-03-01

Homogeneous charge compression ignition engine

#72
20180051658
2018-02-22

Water-injection anti-freezing system

#73
20180038319
2018-02-08

Methods and system for selecting a location for water injection in an engine

#74
20180038228
2018-02-08

Internal combustion engine

#75
20180022339
2018-01-25

Method and system for controlling water injection

#76
20180003132
2018-01-04

Method for controlling ignition in internal combustion engine and pre-chamber assembly thereof

#77
20170362997
2017-12-21

Internally cooled high compression lean-burning internal combustion engine

#78
20170342949
2017-11-30

Internal combustion engine

#79
20170241380
2017-08-24

LIQUID FUEL BASED ENGINE SYSTEM USING HIGH VELOCITY FUEL VAPOR INJECTORS

#80
20170198661
2017-07-13

Direct-injection supercharged internal combustion engine having water injection, and method for operating an internal combustion engine of this type

#81
20170198629
2017-07-13

Internally cooled internal combustion engine and method thereof

#82
20170138315
2017-05-18

Engine system

#83
20170138314
2017-05-18

Control system of engine

#84
20170138313
2017-05-18

Control system of engine

#85
20170114754
2017-04-27

Method and apparatus for diagnosing a water injection into a combustion chamber of an internal combustion engine

#86
20170107950
2017-04-20

Apparatus for furnishing water and method and apparatus for controlling an electric pump for furnishing water for injection into a combustion chamber of an engine

#87
20170107949
2017-04-20

Method and system for determining knock control fluid composition

#88
20170107918
2017-04-20

Method and system for determining knock control fluid composition

#89
20170096933
2017-04-06

Hybrid cycle combustion engine and methods

#90
20170022938
2017-01-26

Control apparatus of engine

#91
20170022924
2017-01-26

Control apparatus of premixed charge compression ignition engine

#92
20170022923
2017-01-26

CONTROL APPARATUS OF PREMIXED CHARGE COMPRESSION IGNITION ENGINE

#93
20160377030
2016-12-29

Internal combustion engine/generator with pressure boost

#94
20160369751
2016-12-22

INTERNAL COMBUSTION ENGINE USING WATER AS AUXILIARY POWER

#95
20160369750
2016-12-22

High Thermal Efficiency Six Stroke Internal Combustion Engine with Heat Recovery and Water Injection

#96
20160341117
2016-11-24

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

#97
20160258388
2016-09-08

Water supply control apparatus for in-cylinder injection type internal combustion engine

#98
20160245235
2016-08-25

High thermal efficiency six stroke internal combustion engine with heat recovery

#99
20160245164
2016-08-25

Condensed water supply control apparatus for in-cylinder injection type internal combustion engine

#100
20160177879
2016-06-23

METHOD AND SYSTEM FOR A GAS TURBINE ENGINE PURGE CIRCUIT WATER INJECTION

#101
20160123286
2016-05-05

METHOD, SYSTEM, AND FUEL INJECTOR FOR MULTI-FUEL INJECTION WITH PRESSURE INTENSIFICATION AND A VARIABLE ORIFICE

#102
20160097350
2016-04-07

HIGH-ENTHALPY FLUID INJECTION INTEGRATED WITH SPARK PLUG

#103
20160084202
2016-03-24

High-enthalpy fluid injection integrated with glow plug

#104
20160076440
2016-03-17

Internally cooled high compression lean-burning internal combustion engine

#105
20160032870
2016-02-04

Multi-cylinder internal combustion engine

#106
20150337723
2015-11-26

Momentum driven fuel injection of steam and fuel vapor for compression ignition engines

#107
20150285190
2015-10-08

Method for driving internal combustion engine, and air supply device

#108
20150136068
2015-05-21

Liquid injection for scavenging

#109
20150128897
2015-05-14

Internally cooled high compression lean-burning internal combustion engine

#110
20150007793
2015-01-08

Hybrid cycle combustion engine and methods

#111
20140331969
2014-11-13

Method for reducing valve recession in gaseous fuel engines

#112
20140200796
2014-07-17

Method and system for engine control

#113
20140130770
2014-05-15

Two-stroke reciprocating piston combustion engine

#114
20140116404
2014-05-01

Power system comprising a condensation injection system

#115
20140116374
2014-05-01

High-enthalpy fluid injection

#116
20140102403
2014-04-17

Gas engine, control system and control method for gas engine

#117
20140096741
2014-04-10

Internal combustion steam engine

#118
20130213347
2013-08-22

Method of operating a combustion engine provided with at least one flushed prechamber

#119
20130125858
2013-05-23

Fluid injection pressurization system

#120
20130118165
2013-05-16

Method and system for controlling fuel usage

#121
20130055983
2013-03-07

Internal Combustion Energy Recovery, ICER

#122
20130054119
2013-02-28

CONTROL SYSTEM FOR COMBUSTION SYSTEM

#123
20130014728
2013-01-17

HEAT ENGINE AND POWER GENERATION SYSTEM USING THE HEAT ENGINE

#124
20130000596
2013-01-03

INTERNAL-COMBUSTION ENGINE WORKING WITH ALTERNATIVE FUELS

#125
20120312004
2012-12-13

Emission-free devices and method for performing mechanical work and for generating electrical and thermal energy

#126
20120298071
2012-11-29

COMBUSTION SYSTEM FOR INTERNAL COMBUSTION ENGINE

#127
20120293071
2012-11-22

Ignition apparatus, internal-combustion engine, ignition plug, plasma equipment, exhaust gas degradation apparatus, ozone generating/sterilizing/disinfecting apparatus and odor eliminating apparatus

#128
20120260886
2012-10-18

Internally cooled high compression lean-burning internal combustion engine

#129
20120118250
2012-05-17

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

#130
20120103314
2012-05-03

Split cycle reciprocating piston engine

#131
20120090298
2012-04-19

ENGINE COMBUSTION CONDITION AND EMISSION CONTROLS

#132
20120067325
2012-03-22

METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE IN ACCORDANCE WITH SAID METHOD

#133
20120060493
2012-03-15

Hybrid combustion energy conversion engines

#134
20120013254
2012-01-19

Ignition apparatus, internal-combustion engine, ignition plug, plasma equipment, exhaust gas degradation apparatus, ozone generating/sterilizing/disinfecting apparatus, and odor eliminating apparatus

#135
20120012077
2012-01-19

Ignition apparatus, internal-combustion engine, ignition plug, plasma equipment, exhaust gas degradation apparatus, ozone generating/sterilizing/disinfecting apparatus, and odor eliminating apparatus

#136
20110220040
2011-09-15

Coupled thermochemical reactors and engines, and associated systems and methods

#137
20110174263
2011-07-21

Method and system for controlling fuel usage

#138
20110132320
2011-06-09

Fluid injection pressurization system

#139
20110108000
2011-05-12

APPARATUS AND METHOD FOR OPERATING AN ENGINE WITH NON-FUEL FLUID INJECTION

#140
20110094492
2011-04-28

DEVICE FOR FEEDING WATER STEAM VIA A HEAT EXCHANGER IN A COMBUSTION CHAMBER AND A METHOD

#141
20110061612
2011-03-17

SPACE ENGINE INCLUDING THE HAASE CYCLE WITH ENERGY RECOVERY COOLING

#142
20110023816
2011-02-03

Internal combustion water injection engine

#143
20110017170
2011-01-27

8-stroke internal combustion engine

#144
20100313831
2010-12-16

Highly efficient 6-stroke engine cycle with water injection

#145
20100282221
2010-11-11

INTERNAL COMBUSTION ENGINE AND VEHICLE EQUIPPED WITH SUCH ENGINE

#146
20100269775
2010-10-28

SIX-STROKE INTERNAL COMBUSTION ENGINE, METHOD OF OPERATION OF SUCH AN ENGINE AND VEHICLE EQUIPPED WITH SUCH AN ENGINE

#147
20100263623
2010-10-21

Diesel engine exhaust purifier

#148
20100229806
2010-09-16

INTERNAL COMBUSTION ENGINES WITH SURCHARGING AND SUPRAIGNITION SYSTEMS

#149
20100224167
2010-09-09

Warm up strategy for ethanol direct injection plus gasoline port fuel injection

#150
20100175638
2010-07-15

Water Combustion Technology - The Haase Cycle

#151
20100107607
2010-05-06

Method and device for producing ammonia for the exhaust gas treatment in internal combustion engines in a motor vehicle

#152
20100037851
2010-02-18

Internal combustion water injection engine

#153
20090308348
2009-12-17

CONTINUOUS IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINE THROUGH PLASMA

#154
20090241895
2009-10-01

TWO STROKE COMBUSTION ENGINE WITH LIQUID INJECTION

#155
20090229581
2009-09-17

Ignition apparatus, internal-combustion engine, ignition plug, plasma equipment, exhaust gas degradation apparatus, ozone generating/sterilizing/disinfecting apparatus, and odor eliminating apparatus

#156
20090188467
2009-07-30

Method for using ordinary fuel and water for car engine

#157
20090178642
2009-07-16

Heat energy recycling device for an engine and two-stroke engine using the same

#158
20090145398
2009-06-11

INTERNAL COMBUSTION ENGINES WITH SURCHARGING AND SUPRAIGNITION SYSTEMS

#159
20090070021
2009-03-12

Warm up strategy for ethanol direct injection plus gasoline port fuel injection

#160
20090056670
2009-03-05

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

#161
20080311009
2008-12-18

Device and Method for Supplying Fuel or Reducing Agent, and Plasma Torch

#162
20080271706
2008-11-06

Hydrogen gas injector plug for diesel engines

#163
20080223332
2008-09-18

Advanced internal combustion engine

#164
20080216793
2008-09-11

Engine

#165
20080202486
2008-08-28

Hybrid cycle combustion engine and methods

#166
20080202454
2008-08-28

Split-cycle engine with water injection

#167
20080127931
2008-06-05

Method and apparatus for extending high load operation in a homogeneous charge compression ignition engine

#168
20080097679
2008-04-24

Internal combustion water injection engine

#169
20080000445
2008-01-03

Control apparatus for an internal combustion engine capable of pre-mixed charge compression ignition

#170
20070289573
2007-12-20

Warm up strategy for ethanol direct injection plus gasoline port fuel injection

#171
20070277775
2007-12-06

Combustion-steam engine

#172
20070151528
2007-07-05

Method and a system for control of a device for compression

#173
20070119414
2007-05-31

Warm up strategy for ethanol direct injection plus gasoline port fuel injection

#174
20070119392
2007-05-31

Engine with water and/or ethanol direct injection plus gas port fuel injectors

#175
20070056534
2007-03-15

Apparatus for producing a diesel-oil/water microemulsion and for injecting the emulsion into a diesel engine

#176
20070022977
2007-02-01

Method and apparatus for operating an internal combustion engine

#177
20060249102
2006-11-09

Devices, systems and methods for controlling introduction of additives into an internal combustion engine

#178
20060185643
2006-08-24

Premixed charge compression ignition engine and reciprocating generator having the same

#179
20060137631
2006-06-29

Internal combustion engine with regenerator, hot air ignition, and naturally aspirated engine control

#180
20060124079
2006-06-15

System and method for recovering wasted energy from an internal combustion engine

#181
20060054111
2006-03-16

Method and a device for production of mechanical work and cooling/heating in conjunction with a combustion machine

#182
20060037563
2006-02-23

Internal combustion engine with auto ignition

#183
20050274350
2005-12-15

Gorski rotary engine

#184
20050126155
2005-06-16

Hydrogen motor

#185
20050066575
2005-03-31

Heading gas injection system (HGIS) direct injection system

#186
20050034456
2005-02-17

Internal combustion engine with steam expansion stroke

#187
17693094
2023-02-07

Engine and ignition assembly with two pistons

#188
17520660
2023-05-23

Methods and devices for reducing NOx emissions produced by diesel engines

#189
17374735
2021-10-12

Power system with internal combustion engine

#190
16254285
2021-12-07

Methods and devices for reducing NOx emissions produced by diesel engines

#191
14321976
2015-10-06

Ignition apparatus, internal-combustion engine, ignition plug, plasma equipment, exhaust gas degradation apparatus, ozone generating/sterilizing/disinfecting apparatus, and odor eliminating apparatus