ClassID:

139487

F02D19/0678 - 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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed; Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers; Valves; Pressure or flow regulators; Mixers Pressure or flow regulators therefor; Fuel metering valves therefor

Recent Application in this class:
#1
20260139636
2026-05-21

INTERNAL COMBUSTION ENGINE

#2
20260110270
2026-04-23

MULTI-WALLED FUEL SYSTEM, METHOD OF OPERATING MULTI-WALLED FUEL SYSTEM, AND ENGINE CONTAINING MULTI-WALLED FUEL SYSTEM

#3
20260092584
2026-04-02

FUEL SYSTEM FOR ENGINE

#4
20260036095
2026-02-05

APPARATUS AND METHOD FOR REGULATING AND INJECTING GASEOUS FUEL INTO AN INTERNAL COMBUSTION ENGINE

#5
20260022672
2026-01-22

ENGINE SYSTEM AND METHOD FOR DETERMINING FUEL CHARACTERISTICS

#6
20250154913
2025-05-15

APPARATUS AND METHOD FOR REGULATING AND INJECTING GASEOUS FUEL INTO AN INTERNAL COMBUSTION ENGINE

#7
20250137411
2025-05-01

SYSTEM AND METHOD FOR CONTROLLING A FUEL SUPPLY SYSTEM

#8
20250130603
2025-04-24

DIFFERENTIAL PRESSURE REGULATOR

#9
20250012241
2025-01-09

SUPPLEMENTAL FUEL SYSTEM FOR COMPRESSION-IGNITION ENGINE

#10
20250012224
2025-01-09

System for remotely monitoring and controlling operation of a hydro-diesel engine

#11
20240309821
2024-09-19

System for remotely monitoring and controlling operation of a hydro-diesel engine

#12
20240200517
2024-06-20

Internal combustion engine

#13
20230340932
2023-10-26

Supplemental fuel system for compression-ignition engine

#14
20230304450
2023-09-28

Supplemental fuel system for compression-ignition engine

#15
20230101065
2023-03-30

Supplemental fuel system for compression-ignition engine

#16
20230068586
2023-03-02

Supplemental fuel system for compression-ignition engine

#17
20230068444
2023-03-02

Supplemental fuel system for compression-ignition engine

#18
20230064208
2023-03-02

Supplemental fuel system for compression-ignition engine

#19
20210381447
2021-12-09

DUAL-FUEL SUPPLY SYSTEM FOR DIRECT INJECTION

#20
20210340922
2021-11-04

Internal combustion engine system with temperature based output control

#21
20200400083
2020-12-24

Fuel exchange system and fuel supply system for fuel systems

#22
20200318557
2020-10-08

Fuel system for a multi-fuel internal combustion engine

#23
20200025114
2020-01-23

Fuel exchange system and fuel supply system for fuel systems

#24
20190345881
2019-11-14

DUAL FUEL INJECTOR

#25
20190218980
2019-07-18

Tri fuel gen

#26
20190186387
2019-06-20

Controller with combination function for a portable internal combustion engine

#27
20190101070
2019-04-04

Pressure regulating modules with controlled leak paths

#28
20190048808
2019-02-14

Fuel system for an internal combustion engine

#29
20180320605
2018-11-08

High pressure fluid control system and method of controlling pressure bias in an end use device

#30
20180252150
2018-09-06

Method for regulating an internal combustion engine

#31
20180066613
2018-03-08

Adjusting a fuel on-board a vehicle

#32
20170356357
2017-12-14

After-market gaseous fuel and petrol engine conversion system

#33
20170298850
2017-10-19

System and methods for reducing particulate matter emissions

#34
20170234276
2017-08-17

Adjusting a fuel on-board a vehicle

#35
20170218897
2017-08-03

Dual fuel injector

#36
20170096954
2017-04-06

Method and apparatus for controlling fuel pressure in a gaseous fuelled internal combustion engine

#37
20170074212
2017-03-16

HYDRAULIC SERVO GAS REGULATOR FOR MULTI-FUEL ENGINE

#38
20170074182
2017-03-16

Method and system for controlling fuel pressure in a gaseous fuelled internal combustion engine

#39
20170022910
2017-01-26

Fuel system for a multi-fuel internal combustion engine

#40
20170009670
2017-01-12

Dual fuel system for a combustion engine

#41
20160201580
2016-07-14

Propane fuel supplement system and method

#42
20160160766
2016-06-09

Kit for the realization of a dual LPG/petrol fuel system for outboard engines for motorboats

#43
20160153371
2016-06-02

GAS REGULATOR FOR A MULTI-FUEL ENGINE AND METHOD OF OPERATING SAME

#44
20160084172
2016-03-24

Bi-fuel system and a method for operating such a system

#45
20160032849
2016-02-04

Method and apparatus for fuel regulation

#46
20150345455
2015-12-03

Vehicular liquid containment system and method for verifying integrity of same

#47
20150075499
2015-03-19

Method and apparatus for controlling fuel pressure in a gaseous fuelled internal combustion engine

#48
20140238351
2014-08-28

Method and apparatus for pumping fuel to a fuel injection system

#49
20140116520
2014-05-01

FUEL SYSTEM HAVING DUAL FUEL PRESSURE REGULATOR

#50
20140081565
2014-03-20

Gaseous fuel rail depressurization during inactive injector conditions

#51
20130104997
2013-05-02

Method and system for controlling fluid flow from a storage tank through a supply line to an end user

#52
20130014729
2013-01-17

Fuel supply control device and fuel supply system

#53
20130013256
2013-01-10

SHUT-OFF VALVE FAULT DIAGNOSIS DEVICE

#54
20130013173
2013-01-10

Fuel supply system for internal combustion engine

#55
20110203263
2011-08-25

GASEOUS FUELED TWO-STROKE ENGINE

#56
20110186370
2011-08-04

Fuel supply apparatus and motorcycle including same

#57
20110155102
2011-06-30

DIRECT INJECTION BI-FUEL SYSTEM FOR COMBUSTION ENGINES

#58
20110120569
2011-05-26

Fuel Tank System For Gasoline And Flexible Ethanol Powered Vehicles Using On-Demand Direct Ethanol Injection Octane Boost

#59
20110056465
2011-03-10

Fuel supply device

#60
20100155322
2010-06-24

Vehicle mounted fuel separation apparatus

#61
20100049425
2010-02-25

Fuel supply device for flexible-fuel internal combustion engine

#62
20100010726
2010-01-14

Controller for internal combustion engine

#63
20090320789
2009-12-31

Multi fuel co-injection system for internal combustion and turbine engines

#64
20090020631
2009-01-22

Gaseous fuel injector using liquid fuel as lubricant and pressure-transmitting medium

#65
20080098985
2008-05-01

Internal combustion engine system

#66
20080022986
2008-01-31

Method for operating a flex fuel conversion system

#67
20080022983
2008-01-31

Secondary fuel system for diesel engines

#68
20070119390
2007-05-31

SYSTEM AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE

#69
20060137332
2006-06-29

Vehicle with a supply unit

#70
20060081230
2006-04-20

Method for verification of at least one given fuel mixture ratio

#71
20050205021
2005-09-22

Dual fuel engine

#72
20050028787
2005-02-10

Variable fuel and fluid delivery system

#73
20050011501
2005-01-20

Multi-phase fuel system

#74
18653783
2025-09-23

Systems and methods for actively managing pilot fuel storage tanks

#75
18516962
2025-01-21

Fuel gas valve applicable to natural gas and liquefied petroleum gas

#76
17645014
2023-03-07

Methods and systems for a multi-pressure fuel injection system

#77
15584586
2019-11-12

Cold start of internal combustion engine