ClassID:

139449

F02D19/023 - CPC Classification

Classification description:

Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels; Control of components of the fuel supply system to adjust the fuel mass or volume flow

Sub-classes:
Recent Application in this class:
#1
20260117716
2026-04-30

SYSTEM AND METHOD FOR CONTROLLING FUEL SUBSTITUTION IN A DUAL FUEL ENGINE SYSTEM

#2
20260092584
2026-04-02

FUEL SYSTEM FOR ENGINE

#3
20260063098
2026-03-05

HYDROGEN COMBUSTION ENGINE TORQUE CONTROL

#4
20250305461
2025-10-02

Natural Gas Engines With Fuel Quality Determination

#5
20250270971
2025-08-28

HYDROGEN FUEL SYSTEM, A HYDROGEN INTERNAL COMBUSTION ENGINE SYSTEM, AND A METHOD FOR OPERATING A HYDROGEN FUEL SYSTEM

#6
20250154910
2025-05-15

ENGINE AND METHOD OF CONTROLLING ENGINE

#7
20250122844
2025-04-17

Natural Gas Engines with Fuel Quality Determination

#8
20250122824
2025-04-17

FUEL BYPASS SYSTEM FOR GASEOUS-FUELED ENGINE

#9
20250092836
2025-03-20

SYSTEM AND METHOD FOR CONTROLLING FUEL SUBSTITUTION IN A DUAL FUEL ENGINE SYSTEM

#10
20250035060
2025-01-30

ENGINE DEVICE AND METHOD OF CONTROLLING ENGINE DEVICE

#11
20250027457
2025-01-23

Hydrogen Fuel Pressure Energy Recovery for Hydrogen Engine Vehicles

#12
20250012241
2025-01-09

SUPPLEMENTAL FUEL SYSTEM FOR COMPRESSION-IGNITION ENGINE

#13
20240410322
2024-12-12

Natural Gas Engines With Fuel Quality Determination

#14
20240352903
2024-10-24

ENGINE CONTROL DEVICE, AND VEHICLE

#15
20240280061
2024-08-22

Natural gas engines with fuel quality determination

#16
20240254912
2024-08-01

Fuel bypass system for gaseous-fueled engine

#17
20240141853
2024-05-02

Device for the Controllable Metering of Hydrogen and Method for the Production Thereof

#18
20240110525
2024-04-04

Natural gas engines with fuel quality determination

#19
20240102425
2024-03-28

METHOD FOR CONTROLLING OPERATION OF AN INTERNAL COMBUSTION ENGINE WHICH RUNS ON A FUEL MIXTURE OF HYDROGEN AND NATURAL GAS

#20
20240018916
2024-01-18

Internal combustion engine

#21
20230340932
2023-10-26

Supplemental fuel system for compression-ignition engine

#22
20230304450
2023-09-28

Supplemental fuel system for compression-ignition engine

#23
20230235706
2023-07-27

INTEGRATED THROTTLE - FUEL MIXER

#24
20230203982
2023-06-29

Fuel bypass system for gaseous-fueled engine

#25
20230127998
2023-04-27

AMMONIA ENGINE

#26
20230116609
2023-04-13

Natural gas engines with fuel quality determination

#27
20230101065
2023-03-30

Supplemental fuel system for compression-ignition engine

#28
20230068586
2023-03-02

Supplemental fuel system for compression-ignition engine

#29
20230068444
2023-03-02

Supplemental fuel system for compression-ignition engine

#30
20230064208
2023-03-02

Supplemental fuel system for compression-ignition engine

#31
20230028228
2023-01-26

Gas fuel vehicle and method for controlling a gas fuel supply circuit

#32
20230003344
2023-01-05

A system having at least two cryogenic containers for providing a fluid

#33
20220243673
2022-08-04

Compressed gas tank arrangement for a combustion machine

#34
20220056857
2022-02-24

Gas engine heat pump and method of operating the same

#35
20210388778
2021-12-16

Air-fuel metering for internal combustion reciprocating engines

#36
20210222611
2021-07-22

Fuel bypass system for gaseous-fueled engine

#37
20210095605
2021-04-01

Air-fuel metering for internal combustion reciprocating engines

#38
20200248652
2020-08-06

Method for Operating a Gas Engine or a Dual-Fuel Engine Operated in a Gas Fuel Operating Mode and Corresponding Engine

#39
20200217277
2020-07-09

System for generating and supplying hydrogen gas to an internal combustion engine

#40
20200055375
2020-02-20

Methane safety systems for transport refrigeration units

#41
20200032722
2020-01-30

Mixture formation device for a gas engine and gas engine

#42
20190353110
2019-11-21

Method for estimating a top dead centre for a high-pressure pump of a fuel injection system in an automotive vehicle engine

#43
20190345897
2019-11-14

Nonwoven abrasive articles and methods of making the same

#44
20190285006
2019-09-19

Pressure regulating mass flow system for multipoint gaseous fuel injection

#45
20190202267
2019-07-04

Fuel system control for refrigeration unit engine

#46
20190145327
2019-05-16

Device for operating an engine

#47
20190128205
2019-05-02

METHOD FOR DETERMINING THE PROPER OPERATION OF A VALVE IN A GAS TANK SYSTEM

#48
20190032543
2019-01-31

Precombustion-chamber type gas engine and operation control method of same

#49
20180223748
2018-08-09

SYSTEM AND METHOD FOR ENGINE CONTROL

#50
20180163669
2018-06-14

Fuel supply system and valve assembly therefor

#51
20180135538
2018-05-17

Integrated natural gas flow regulation system including fuel temperature homogenization for improved engine performance and reduced emissions

#52
20180073467
2018-03-15

Natural gas supply system for providing conditioned natural gas to dual fuel engines

#53
20180030907
2018-02-01

Natural gas fuel reformer control for lean burn gas engines

#54
20170268438
2017-09-21

Method for operating an internal combustion engine based on a characteristic value determined from a lamda value, and internal combustion engine

#55
20170246951
2017-08-31

CNG fuel system for a vehicle

#56
20170184056
2017-06-29

Method And Apparatus For Supplying A Gaseous Fuel To An Internal Combustion Engine

#57
20170159612
2017-06-08

Method for operating an engine

#58
20160341134
2016-11-24

FUEL DELIVERY SYSTEM

#59
20160325769
2016-11-10

Managing a supply of gaseous fuel on a tender car

#60
20160290297
2016-10-06

Method and system for delivering a gaseous fuel into the air intake system of an internal combustion engine

#61
20160281643
2016-09-29

Mixing block

#62
20160245244
2016-08-25

Fuel tank system

#63
20160222902
2016-08-04

Gas engine

#64
20160215720
2016-07-28

Arrangement with rotating drive machine and operating method

#65
20160126874
2016-05-05

Regulating methods for operating an internal combustion engine upon network fault detection

#66
20160061176
2016-03-03

Exhaust purge device for gas internal combustion engine

#67
20160053724
2016-02-25

Method and device for operating a gas internal combustion engine

#68
20160025024
2016-01-28

Internal combustion engine having a regulating device

#69
20150192082
2015-07-09

Gaseous fuel conversion system for marine vessels, and related accessories

#70
20150000635
2015-01-01

Controller and control method for gas engine

#71
20140331971
2014-11-13

Combustion control device and control method for internal combustion engine

#72
20140114552
2014-04-24

Combined fueling strategy for gaseous fuel

#73
20140102422
2014-04-17

Gas mixer, gas mixing system, gas engine

#74
20140102416
2014-04-17

FUEL MANAGEMENT SYSTEM

#75
20140026828
2014-01-30

Portable engine generator

#76
20130327295
2013-12-12

Gas engine system with detection function of abnormality occurrence of gas pressure detection mechanism

#77
20130291834
2013-11-07

Method and control device for operating a gasoline engine

#78
20130220278
2013-08-29

Fuel gas supply method and supply unit for gas engine

#79
20130118452
2013-05-16

DME common-rail fuel supply apparatus and method

#80
20130074817
2013-03-28

Automatic set point adjustment system and method for engine air-fuel ratio control system

#81
20130055712
2013-03-07

Gas engine

#82
20120292921
2012-11-22

Stationary power plant

#83
20120247407
2012-10-04

Mixing block

#84
20120204570
2012-08-16

Load Control Device and Method for Controlling the Load of an Engine

#85
20120197514
2012-08-02

Engine control device and cogeneration apparatus employing the engine control device

#86
20120160191
2012-06-28

Integrated control system and method

#87
20120109499
2012-05-03

Method for regulating a gas engine

#88
20120073550
2012-03-29

Fuel Metering Device for a Gaseous Fuel Engine

#89
20120060935
2012-03-15

Fuel tank temperature and pressure management via selective extraction of liquid fuel and fuel vapor

#90
20120004824
2012-01-05

NATURAL GAS AND DIESEL FUEL BLENDING SYSTEM

#91
20110247589
2011-10-13

Method to control a gas engine and a gas engine system thereof

#92
20110174281
2011-07-21

Carbureted natural gas turbo charged engine

#93
20110144889
2011-06-16

Method for operating an internal combustion engine operated with a gas as fuel

#94
20110100483
2011-05-05

Gas supply apparatus equipped with vaporizer

#95
20110094593
2011-04-28

Method and apparatus for processing diluted fugitive gases

#96
20110077847
2011-03-31

System, method, and apparatus for gas engine enhanced starting

#97
20110036075
2011-02-17

Gas Engine

#98
20100275891
2010-11-04

INTERNAL COMBUSTION ENGINE

#99
20100269789
2010-10-28

METERING FUEL PUMP

#100
20100256890
2010-10-07

Method for controlling a stationary gas motor

#101
20100242937
2010-09-30

Method for regulating a stationary gas engine

#102
20100175661
2010-07-15

INTERNAL COMBUSTION ENGINE

#103
20100168987
2010-07-01

Internal-combustion engine with variable actuation of the intake valves and self-adaptive control of the air-fuel ratio with supervision of the control functions

#104
20100131172
2010-05-27

Engine control system having fuel-based timing

#105
20100126170
2010-05-27

Method to control a gas engine system thereof

#106
20100024766
2010-02-04

Homogeneous charge compression ignition engine

#107
20100012101
2010-01-21

Fuel supply system for gas engine

#108
20090320781
2009-12-31

LNG FUEL SUPPLY SYSTEM

#109
20090287392
2009-11-19

Method and system for closed loop lambda control of a gaseous fueled internal combustion engine

#110
20090199813
2009-08-13

Premixed Compression Ignition Type Engine And Method Of Controlling Intake Air Thereof

#111
20090192698
2009-07-30

Method for automatically controlling a stationary gas engine

#112
20090165738
2009-07-02

Spark-ignited gas engine

#113
20090159050
2009-06-25

Fuel supply and combustion chamber systems for fastener-driving tools

#114
20090088950
2009-04-02

Fuel control system and method for gas engines

#115
20090076713
2009-03-19

Gaseous fuel engine charge density control system

#116
20090076709
2009-03-19

Method and device for integrative control of gas engine

#117
20080314042
2008-12-25

Stationary combustion engine

#118
20080162335
2008-07-03

Gas engine electric power generating system effectively utilizing greenhouse gas emission credit

#119
20080147303
2008-06-19

Method and apparatus for controlling combustion in generator gas engine

#120
20080022983
2008-01-31

Secondary fuel system for diesel engines

#121
20070277526
2007-12-06

Carbureted natural gas turbo charged engine

#122
20070256737
2007-11-08

Gaseous fuel management system for automotive vehicle

#123
20070246018
2007-10-25

Pulsation-dampening fuel trim strategy for air/fuel ratio control of propane-fueled, spark-ignited engines

#124
20070125321
2007-06-07

Process for use with dual-fuel systems

#125
20070089719
2007-04-26

Method and apparatus for controlling stationary gaseous-fueled internal combustion engines

#126
20070082304
2007-04-12

Method of and system for controlling the ratio of a variable lead parameter and an adjustable lag parameter for a lag-lead process

#127
20070079598
2007-04-12

Gaseous fuel engine charge density control system

#128
20070028612
2007-02-08

Metering fuel pump

#129
20070022733
2007-02-01

Electric power supply equipment

#130
20060225715
2006-10-12

Mixer for engine, air conditioning apparatus driven by engine, and power generation apparatus driven by engine

#131
20060204909
2006-09-14

Method and apparatus for utilising fugitive gases as a supplementary fuel source

#132
20060180128
2006-08-17

Stuck-open failure detection system for gas-fuel injection valve

#133
20060174855
2006-08-10

Internal combustion engine speed control

#134
20060130796
2006-06-22

Method and apparatus for fuel injection systems

#135
20060076780
2006-04-13

Power system for a telecommunications facility

#136
20060071476
2006-04-06

Power system for a telecommunications facility

#137
20060064227
2006-03-23

Electronically managed LPG fumigation method and system

#138
20060042606
2006-03-02

LPG vehicular liquid transfer system

#139
20060021604
2006-02-02

Fuel control system for a dual fuel internal combustion engine

#140
20060000456
2006-01-05

Method for operation of an internal combustion engine running on hydrogen

#141
20050224057
2005-10-13

Fuel return device for internal combustion engine

#142
20050205022
2005-09-22

Gas engine electric power generating system effectively utilizing greenhouse gas emission credit

#143
20050193990
2005-09-08

Systems for delivering liquified gas to an engine

#144
20050172942
2005-08-11

Method of regulating an internal combustion engine

#145
18653783
2025-09-23

Systems and methods for actively managing pilot fuel storage tanks