ClassID:

139480

F02D19/066 - 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 Retrofit of secondary fuel supply systems; Conversion of engines to operate on multiple fuels

Recent Application in this class:
#1
20250116238
2025-04-10

HYDROGEN-DIESEL DIRECT INJECTION DUAL-FUEL SYSTEM FOR INTERNAL COMBUSTION ENGINES

#2
20240263592
2024-08-08

BI-FUEL ENGINE WITH INCREASED POWER

#3
20240183320
2024-06-06

Device for converting to bioethanol, arranged to produce a modified control signal

#4
20240110526
2024-04-04

High oxygen operation of internal combustion engines

#5
20230392560
2023-12-07

Mixed fuel system

#6
20230175430
2023-06-08

Dual fuel injection system for optimizing fuel usage and minimizing slip for diesel and gasoline engines

#7
20230071968
2023-03-09

Bi-fuel engine with increased power

#8
20220260005
2022-08-18

Dual fuel injection system for optimizing fuel usage and minimizing slip for diesel and gasoline engines

#9
20220170424
2022-06-02

Bi-fuel engine with increased power

#10
20210108556
2021-04-15

Dual fuel injection system for optimizing fuel usage and minimizing slip for diesel engines

#11
20200355127
2020-11-12

Bi-fuel engine with increased power

#12
20190277189
2019-09-12

Dual fuel injection system for optimizing fuel usage and minimizing slip for diesel engines

#13
20190085776
2019-03-21

DIESEL TO NATURAL GAS CONVERSION SYSTEM

#14
20190072062
2019-03-07

Method and apparatus for modifying an OEM fuel system for bi-fuel use

#15
20190024616
2019-01-24

ALTERNATIVE FUEL RETROFIT KIT FOR A COMBUSTION ENGINE

#16
20180171870
2018-06-21

ELECTROCATALYTIC SYSTEM FOR REDUCING PULLUTION AND FUEL CONSUMPTION

#17
20170356357
2017-12-14

After-market gaseous fuel and petrol engine conversion system

#18
20170298843
2017-10-19

Fuel valve for injecting gaseous fuel into a combustion chamber of a self-igniting internal combustion engine and method

#19
20170045003
2017-02-16

Fuel control systems for operating gasoline engines based on ethanol-water-hydrogen mixture fuels

#20
20160160766
2016-06-09

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

#21
20150240763
2015-08-27

Fuel interface modules and related systems and methods

#22
20150090223
2015-04-02

Bi-fuel engine with increased power

#23
20150051825
2015-02-19

Dual distance to empty function for bi-fuel vehicle

#24
20140325839
2014-11-06

Dimethyl ether (DME) enhanced gasoline engine

#25
20140309909
2014-10-16

Combustion engine

#26
20140156167
2014-06-05

Simplified method to inject ethanol or other solution additives into diesel engines equipped with a digital data bus

#27
20140116388
2014-05-01

FUEL SYSTEM RETROFIT KIT FOR AN ENGINE

#28
20130066536
2013-03-14

SENSOR OUTPUT MODIFIER

#29
20120272935
2012-11-01

Method of operating a dual fuel combustion engine of the diesel-type and a dual fuel combustion engine of the diesel-type operable according to such method

#30
20120109496
2012-05-03

FUEL INJECTION SYSTEM

#31
20120085326
2012-04-12

METHOD AND APPARATUS FOR CONVERTING DIESEL ENGINES TO BLENDED GASEOUS AND DIESEL FUEL ENGINES

#32
20120085322
2012-04-12

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

#33
20110301826
2011-12-08

Bi-fuel engine with variable air fuel ratio

#34
20110297115
2011-12-08

Bi-fuel engine with increased power

#35
20110276253
2011-11-10

Bi-fuel control systems for automotive vehicles and related methods

#36
20110272045
2011-11-10

Fuel interface modules and related systems and methods

#37
20110114068
2011-05-19

ENGINE START-UP WITH A SECONDARY FUEL

#38
20110100323
2011-05-05

DIMETHYL ETHER (DME) ENHANCED GASOLINE ENGINE

#39
20100332106
2010-12-30

Method and apparatus for controlling liquid fuel delivery during transition between modes in a multimode engine

#40
20100332104
2010-12-30

Bi-fuel conversion device for an internal combustion engine

#41
20100324801
2010-12-23

System for supply of LPG/ammonia for direct-injection petrol or diesel engines

#42
20100229838
2010-09-16

Dual fuel compression ignition engines and methods

#43
20100147262
2010-06-17

Engine fuel supply system

#44
20100122989
2010-05-20

System and method for fueling diesel engines with vegetable oil

#45
20090314262
2009-12-24

FUEL SUPPLY DEVICE FOR A DIESEL ENGINE AND METHOD FOR OPERATING A FUEL SUPPLY DEVICE FOR A DIESEL ENGINE

#46
20090188479
2009-07-30

ARRANGEMENT AND METHOD TO OPERATE A COMBUSTION ENGINE WITH TWO DIFFERENT TYPES OF FUEL

#47
20090126691
2009-05-21

Super cooled air and fuel induction system for internal combustion engines

#48
20090055080
2009-02-26

Method and apparatus for heating at least one injector of an engine

#49
20080115744
2008-05-22

HYDROGEN FUEL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

#50
20080110421
2008-05-15

Hydrogen Fuel System for an Internal Combustion Engine

#51
20080103676
2008-05-01

Direct injection gaseous-fuelled engine and method of controlling fuel injection pressure

#52
20080091334
2008-04-17

Methods of flexible fuel engine conversions

#53
20080060598
2008-03-13

Method and apparatus for modifying fuel injection scheme

#54
20080022986
2008-01-31

Method for operating a flex fuel conversion system

#55
20080022965
2008-01-31

Gas engine

#56
20070295316
2007-12-27

Methods and apparatus for operation of multiple fuel engines

#57
20070157912
2007-07-12

Process for use with dual-fuel systems

#58
20070125321
2007-06-07

Process for use with dual-fuel systems

#59
20070056569
2007-03-15

System and method for fueling diesel engines with vegetable oil

#60
20060236976
2006-10-26

Addition of flexible fuel engine control system

#61
20060081223
2006-04-20

Heat exchanger module

#62
20060065214
2006-03-30

Hydrogen fuel system for an internal combustion engine

#63
20050273246
2005-12-08

Bi-fuel converter device for automobiles and internal combustion engines

#64
20050252489
2005-11-17

Variable octane duel fuel delivery system

#65
20050229872
2005-10-20

System and method for operating an internal combustion engine with hydrogen blended with conventional fossil fuels

#66
20050011501
2005-01-20

Multi-phase fuel system