ClassID:

140696

F02M21/0278 - CPC Classification

Classification description:

Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels; Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers; Injectors Port fuel injectors for single or multipoint injection into the air intake system

Recent Application in this class:
#1
20260092584
2026-04-02

FUEL SYSTEM FOR ENGINE

#2
20250290473
2025-09-18

ENGINE DEVICE

#3
20250075647
2025-03-06

ENGINE SYSTEM

#4
20250012241
2025-01-09

SUPPLEMENTAL FUEL SYSTEM FOR COMPRESSION-IGNITION ENGINE

#5
20240360806
2024-10-31

INTAKE RUNNER FOR GASEOUS FUEL ENGINE, SYSTEM, AND METHOD

#6
20240352904
2024-10-24

INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE

#7
20240309801
2024-09-19

Explosion Safe Electrolysis Unit

#8
20240301815
2024-09-12

Ultra Low Enhancement Gas Injection

#9
20240247622
2024-07-25

Intake runner for gaseous fuel engine, system, and method

#10
20240209814
2024-06-27

CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE AND AN INTERNAL COMBUSTION ENGINE WITH SUCH A CYLINDER HEAD

#11
20240102406
2024-03-28

Engine system

#12
20240093637
2024-03-21

ROLLOVER-SAFE ELECTROLYSIS UNIT FOR VEHICLES

#13
20230340932
2023-10-26

Supplemental fuel system for compression-ignition engine

#14
20230147721
2023-05-11

Engine system

#15
20230101065
2023-03-30

Supplemental fuel system for compression-ignition engine

#16
20230070025
2023-03-09

Supplemental fuel system for compression-ignition engine

#17
20230068586
2023-03-02

Supplemental fuel system for compression-ignition engine

#18
20230068444
2023-03-02

Supplemental fuel system for compression-ignition engine

#19
20230064208
2023-03-02

Supplemental fuel system for compression-ignition engine

#20
20230064061
2023-03-02

Supplemental fuel system for compression-ignition engine

#21
20230062236
2023-03-02

HHO Precision Injection System

#22
20230052188
2023-02-16

Onboard HHO Gas Generation System for Heavy Duty Trucks

#23
20230008932
2023-01-12

Internal combustion engine with intake manifold injection, in particular hydrogen combustion engine with intake injection

#24
20220341361
2022-10-27

Explosion safe electrolysis unit

#25
20210404422
2021-12-30

Gaseous fuel mixer assembly for engine and engine system operating method

#26
20210404375
2021-12-30

Engine operating method and engine system for improved load step acceptance

#27
20210404372
2021-12-30

Systems and method for controlling auto-ignition

#28
20200132021
2020-04-30

GAS INJECTION VALVE FOR INJECTING A COMBUSTIBLE GAS INTO AN INTERNAL COMBUSTION ENGINE, INTERNAL COMBUSTION ENGINE HAVING SUCH A GAS INJECTION VALVE, AND METHOD FOR OPERATING SUCH AN INTERNAL COMBUSTION ENGINE

#29
20200072163
2020-03-05

Accumulator device

#30
20200049100
2020-02-13

Engine device

#31
20200032722
2020-01-30

Mixture formation device for a gas engine and gas engine

#32
20190309718
2019-10-10

Co-axial dual fluids metering system and methods

#33
20190234346
2019-08-01

HHO Gas Distribution System

#34
20190234339
2019-08-01

Distributed HHO Precision Injection System

#35
20190234298
2019-08-01

Temperature control for HHO injection gas

#36
20190234297
2019-08-01

Onboard HHO gas generation system for heavy duty trucks

#37
20190233956
2019-08-01

Rollover safe electrolysis unit for vehicles

#38
20190233951
2019-08-01

Explosion safe electrolysis unit

#39
20190178176
2019-06-13

Gas feed method for a gas engine or dual-fuel engine, and gas supply apparatus for same

#40
20190063338
2019-02-28

Fuel injection device of engine

#41
20190055904
2019-02-21

Safe hydrogen fueled ic engine systems

#42
20190032808
2019-01-31

Valve apparatus

#43
20180355827
2018-12-13

Fuel injection device

#44
20180298848
2018-10-18

Method and systems for gaseous and liquid propane injection

#45
20180149125
2018-05-31

Nozzle combustion shield

#46
20180142647
2018-05-24

Gas valve

#47
20180100478
2018-04-12

VALVE DEVICE AND DEVICE FOR MANUFACTURING VALVE DEVICE

#48
20180066571
2018-03-08

Internal combustion engine and method for operating an internal combustion engine

#49
20170356357
2017-12-14

After-market gaseous fuel and petrol engine conversion system

#50
20170342917
2017-11-30

Hydrocarbon vapor start techniques using a purge pump and hydrocarbon sensor

#51
20160369720
2016-12-22

Gas engine

#52
20160319788
2016-11-03

Gas flow limiter for a fuel system and process for use thereof

#53
20160281552
2016-09-29

Valve arrangement

#54
20160273472
2016-09-22

Gaseous fuel supply device

#55
20160245192
2016-08-25

Systems and methods for improving torque response of an engine

#56
20160237955
2016-08-18

Fuel-injection system

#57
20160230730
2016-08-11

System and method for introducing gas into engine cylinder

#58
20160230706
2016-08-11

Gaseous fuel mixer with exhaust gas recirculation

#59
20160222920
2016-08-04

Gaseous fuel mixer and shutoff valve

#60
20160138510
2016-05-19

ENGINE CONTROL APPARATUS

#61
20160115922
2016-04-28

Port injection system for gaseous fuels

#62
20160061099
2016-03-03

UNIFLOW SCAVENGING 2-CYCLE ENGINE

#63
20160061098
2016-03-03

UNIFLOW SCAVENGING 2-CYCLE ENGINE

#64
20160061097
2016-03-03

Uniflow scavenging 2-cycle engine

#65
20150337770
2015-11-26

Gaseous fuel feed apparatus

#66
20150322894
2015-11-12

Gaseous fuel admixing device for a gas-powered internal combustion engine

#67
20150308362
2015-10-29

Mid-cycle fuel injection strategies

#68
20150307076
2015-10-29

Systems and methods for improving torque response of an engine

#69
20150292441
2015-10-15

Cryogenic fuel injection and combustion

#70
20150260120
2015-09-17

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

#71
20150204285
2015-07-23

Multi-fuel engine system

#72
20150204284
2015-07-23

Multi-fuel engine system

#73
20150047350
2015-02-19

System and method for operating an engine combusting liquefied petroleum gas

#74
20150000641
2015-01-01

Method and device for injecting a gaseous medium

#75
20150000640
2015-01-01

Fuel system having sealed injection port

#76
20140299671
2014-10-09

Co-axial dual fluids metering system and methods

#77
20140116393
2014-05-01

Fuel system having a cooled injector

#78
20140116392
2014-05-01

Fuel system for a dual-fuel engine

#79
20140116390
2014-05-01

Fuel system having a fuel-cooled injector

#80
20140116375
2014-05-01

Dual fuel engine and strategy to avoid atmospheric venting

#81
20140102403
2014-04-17

Gas engine, control system and control method for gas engine

#82
20140052363
2014-02-20

Method for operating an internal combustion engine

#83
20140021272
2014-01-23

Liquid phase injection tip icing prevention

#84
20140000559
2014-01-02

Injection device, an internal combustion engine, and a method for operating an injection device for gasoline and CNG

#85
20130340713
2013-12-26

Injector system

#86
20130233274
2013-09-12

Fuel injector icing

#87
20130146029
2013-06-13

Independent fuel injection system of CNG engine

#88
20120310510
2012-12-06

Control system and control method of gas engine

#89
20120160213
2012-06-28

Stratified charge port injection engine and method

#90
20120085322
2012-04-12

Internal Combustion Engine as well as Retrofitting/Conversion Kit for such an Internal Combustion Engine

#91
20110265464
2011-11-03

AMMONIA BURNING INTERNAL COMBUSTION ENGINE

#92
20110265463
2011-11-03

AMMONIA BURNING INTERNAL COMBUSTION ENGINE

#93
20110259298
2011-10-27

Knocking control system for gas engine

#94
20110259285
2011-10-27

AMMONIA BURNING INTERNAL COMBUSTION ENGINE

#95
20110224889
2011-09-15

Knocking control system for gas engine

#96
20110214649
2011-09-08

Control System for Gas Engine

#97
20110191008
2011-08-04

SUPPLEMENTARY FUEL SYSTEM FOR DELIVERY OF HYDROGEN GAS TO AN ENGINE

#98
20110174242
2011-07-21

CYLINDRICAL HYDROGEN FUEL GENERATOR HAVING TUBULAR CELLS WITH MICROSCOPIC INDENTATIONS

#99
20110174241
2011-07-21

Cylindrical hydrogen fuel generator having passive tubular cells

#100
20100251993
2010-10-07

BI-FUEL INTERNAL COMBUSTION ENGINE

#101
20100131173
2010-05-27

Engine control system having fuel-based adjustment

#102
20100012101
2010-01-21

Fuel supply system for gas engine

#103
20100012090
2010-01-21

HYDROGEN DELIVERY SYSTEM AND METHOD FOR AN INTERNAL COMBUSTION ENGINE

#104
20090312935
2009-12-17

Method and apparatus for supplying fuel of LPG car having LPI system

#105
20090282986
2009-11-19

Filtering device for filtering gaseous fuels in systems for supplying gas to internal combustion engines

#106
20090151698
2009-06-18

System and Method for Providing an Air/Fuel Mixture for an Internal-Combustion Engine

#107
20090093949
2009-04-09

Staggered intake valve opening with bifurcated port to eliminate hydrogen intake backfire

#108
20090076713
2009-03-19

Gaseous fuel engine charge density control system

#109
20080308051
2008-12-18

Solenoid valve assembly for a combustible gas supply device to an endothermic engine

#110
20080184964
2008-08-07

Fuel injection system with cross-flow nozzle for enhanced compressed natural gas jet spray

#111
20080162335
2008-07-03

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

#112
20080147303
2008-06-19

Method and apparatus for controlling combustion in generator gas engine

#113
20080135027
2008-06-12

Internal-combustion and burnt gas scavenging supercharged engine with at least two intake means

#114
20080135020
2008-06-12

Automotive modular LPG injector

#115
20080041343
2008-02-21

FUEL INJECTION SYSTEM WITH CROSS-FLOW NOZZLE FOR ENHANCED COMPRESSED NATURAL GAS JET SPRAY

#116
20080016864
2008-01-24

Natural gas fueled turbocharged internal combustion engine

#117
20070137601
2007-06-21

Improved driveability and reduced emissions during engine start-up

#118
20070107703
2007-05-17

Boost control for internal combustion engine using substantially carbon-free fuel

#119
20070079815
2007-04-12

Fuel delivery system

#120
20070079598
2007-04-12

Gaseous fuel engine charge density control system

#121
20070056536
2007-03-15

Method for controlling operation of the cylinder of an internal combustion engine, an engine comprising a cylinder operating according said method and a motor vehicle provided with said engine

#122
20070039598
2007-02-22

CONTROL OF LEAN BURN ENGINE USING EXHAUST GAS RECIRCULATION

#123
20060169255
2006-08-03

Method of operating an internal combustion engine with a dual fuel injection system

#124
20060124112
2006-06-15

Fuel delivery system

#125
20050205022
2005-09-22

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

#126
20050193985
2005-09-08

Acoustic noise reduction of a gaseous fuel injector

#127
20050000490
2005-01-06

Fuel feed device of gas engine

#128
17690656
2023-07-11

Fuel injector for fuel system having damping adjustment valve

#129
17494099
2022-10-25

Operating strategy mitigating undesired combustion in dual fuel engine