F02D19/0694 - CPC Classification Index

#1

20260043382

2026-02-12

DUAL FUEL SYSTEM HAVING DUAL FUEL INJECTOR AND ENGINE OPERATING METHOD

#2

20260043381

2026-02-12

DUAL FUEL SYSTEM HAVING DUAL FUEL INJECTOR AND ENGINE OPERATING METHOD

#3

20250382925

2025-12-18

FUEL INJECTOR OF AN INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE

#4

20250369401

2025-12-04

DUAL FUEL SYSTEM AND METHOD FEEDING SAME FUEL AT TWO PRESSURES TO FUEL INJECTOR

#5

20250314211

2025-10-09

DUAL FUEL SYSTEM AND OPERATING STRATEGY METERING FUEL VIA VARIED FUEL PUMP OUTPUT

#6

20250116238

2025-04-10

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

#7

20240328367

2024-10-03

Engine control apparatus

#8

20240159194

2024-05-16

ENGINE

#9

20240141857

2024-05-02

Switching fuel rail for a diesel fuel engine

#10

20240044308

2024-02-08

DUAL FUEL SYSTEM HAVING DUAL FUEL INJECTOR AND ENGINE OPERATING METHOD

#11

20240018897

2024-01-18

Ammonia-hydrogen blended fuel control system based on reactivity regulation

#12

20230184181

2023-06-15

Methods and systems for compression ignition in a multi fuel engine

#13

20230175430

2023-06-08

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

#14

20230034824

2023-02-02

Methods and systems for engine cold-start

#15

20220290641

2022-09-15

Dual fuel system having dual fuel injector and engine operating method

#16

20220260005

2022-08-18

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

#17

20220243691

2022-08-04

Dual fuel system having dual fuel injector and engine operating method

#18

20210404394

2021-12-30

Fuel injector of a dual-fuel internal combustion engine and dual-fuel internal combustion engine

#19

20210381447

2021-12-09

DUAL-FUEL SUPPLY SYSTEM FOR DIRECT INJECTION

#20

20210148314

2021-05-20

Fuel injector for on-demand multi-fuel injection

#21

20210108556

2021-04-15

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

#22

20200400083

2020-12-24

Fuel exchange system and fuel supply system for fuel systems

#23

20200072136

2020-03-05

Fuel injector arrangement

#24

20200025114

2020-01-23

Fuel exchange system and fuel supply system for fuel systems

#25

20200018246

2020-01-16

Dual fuel nozzle arrangement

#26

20190390616

2019-12-26

Fuel blending system and method

#27

20190390615

2019-12-26

Multi-fuel internal combustion engines and methods for their operation

#28

20190376457

2019-12-12

Adsorbent circulation for onboard octane on-demand and cetane on-demand

#29

20190353124

2019-11-21

Internal combustion engine comprising a fuel injection nozzle with an additional supply of a combustion-promoting medium into the combustion chamber

#30

20190301372

2019-10-03

Adsorbent circulation for onboard octane on-demand and cetane on-demand

#31

20190277189

2019-09-12

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

#32

20190211790

2019-07-11

Injector arrangement for diesel engines using slurry or emulsion fuels

#33

20190178172

2019-06-13

Hydraulically actuated gaseous fuel injector

#34

20190145340

2019-05-16

Fuel injector

#35

20190145339

2019-05-16

Fuel injector

#36

20190145325

2019-05-16

Multi-fuel transport refrigeration unit

#37

20190101070

2019-04-04

Pressure regulating modules with controlled leak paths

#38

20190085773

2019-03-21

Engine device

#39

20190063338

2019-02-28

Fuel injection device of engine

#40

20190032618

2019-01-31

Deposit mitigation for gaseous fuel injectors

#41

20190017477

2019-01-17

Multi-Fuel Combustion Methods, Devices and Engines Using the Same

#42

20190010908

2019-01-10

Fuel injector

#43

20180363568

2018-12-20

Duel-fuel injector, internal combustion engine having such a dual-fuel injector, and method for operating such an internal combustion engine

#44

20180347500

2018-12-06

Injector assembly and method of using same

#45

20180274506

2018-09-27

Fuel injector

#46

20180252173

2018-09-06

Alternate fueling systems and associated methods

#47

20180223780

2018-08-09

Multi-fuel rail apparatus

#48

20180209326

2018-07-26

Fully flexible, self-optimizing, digital hydraulic engines and methods with preheat

#49

20180100450

2018-04-12

Ignition apparatus and method for a premixed charge in a gaseous-fueled engine

#50

20180073447

2018-03-15

Hydraulically actuated gaseous fuel injector

#51

20170356391

2017-12-14

Apparatus for reducing pressure pulsations in a gaseous fuelled internal combustion engine

#52

20170298850

2017-10-19

System and methods for reducing particulate matter emissions

#53

20170298843

2017-10-19

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

#54

20170226973

2017-08-10

Method for reducing carbon/coke in fuel injectors in dual fuel applications

#55

20170218898

2017-08-03

Multi-fuel injector for an internal combustion engine, method for operating a multi-fuel injector and internal combustion engine

#56

20170218897

2017-08-03

Dual fuel injector

#57

20170175657

2017-06-22

Starting a gaseous and pilot fueled engine

#58

20170130685

2017-05-11

Dual fuel fuel-injector

#59

20170107958

2017-04-20

Dual fuel fuel-injector

#60

20170096954

2017-04-06

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

#61

20170074182

2017-03-16

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

#62

20170002780

2017-01-05

Dual-fuel injector

#63

20160377041

2016-12-29

Multiple element firing strategy for cryogenic pump

#64

20160348571

2016-12-01

Combustion system for gaseous fueled internal combustion engine

#65

20160326970

2016-11-10

Method and apparatus for fuel injection and dynamic combustion control

#66

20160319754

2016-11-03

Dual-fuel fuel injector

#67

20160319735

2016-11-03

CHEMICAL FUEL CONDITIONING AND ACTIVATION

#68

20160305382

2016-10-20

Dynamic seal for fuel injector needle check

#69

20160290257

2016-10-06

Control system for a flexible fuel internal combustion engine

#70

20160258400

2016-09-08

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

#71

20160258379

2016-09-08

Method and system for controlling an air-fuel ratio in an engine using a fuel source with an unknown composition

#72

20160252027

2016-09-01

Differential fueling between donor and non-donor cylinders in engines

#73

20160245194

2016-08-25

Two-fuel injection system and implementation method using same

#74

20160195028

2016-07-07

Dual-fuel constructions for opposed-piston engines with shaped combustion chambers

#75

20160169177

2016-06-16

Fuel injector

#76

20160169143

2016-06-16

Multi-fuel system for internal combustion engines

#77

20160131073

2016-05-12

Method and system for engine control

#78

20160115924

2016-04-28

Fuel injector

#79

20160108874

2016-04-21

Fuel injector

#80

20160102618

2016-04-14

Alternate fuel blending systems and associated methods

#81

20160032849

2016-02-04

Method and apparatus for fuel regulation

#82

20150377197

2015-12-31

Dual-channel piezoelectric injector

#83

20150369143

2015-12-24

Engine system having hydraulically actuated gas injector

#84

20150361925

2015-12-17

Dual fuel common rail engine with co-axial quill assembly

#85

20150330316

2015-11-19

In-cylinder dynamic gas blending fuel injector and dual fuel engine

#86

20150330290

2015-11-19

Method and system for ignition energy control

#87

20150136073

2015-05-21

Dual fuel injector and engine using same

#88

20150136072

2015-05-21

Dual fuel injector and engine using same

#89

20150128901

2015-05-14

Open-valve port fuel injection of alcohol in multiple injector engines

#90

20150107549

2015-04-23

Adaptive control system for fuel injectors and igniters

#91

20150075499

2015-03-19

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

#92

20150047614

2015-02-19

Dual fuel system for internal combustion engine and leakage limiting seal strategy for same

#93

20150000640

2015-01-01

Fuel system having sealed injection port

#94

20150000638

2015-01-01

Multi-fuel system for internal combustion engines

#95

20140361103

2014-12-11

Three-way needle control valve and dual fuel injection system using same

#96

20140338639

2014-11-20

METHOD OF CONTROLLING INJECTION RATE SHAPE OF GASEOUS FUEL IN DUAL FUEL INJECTOR

#97

20140331963

2014-11-13

Dual fuel common rail transient pressure control and engine using same

#98

20140316677

2014-10-23

Dual fuel common rail depressurization during engine shutdown and machine using same

#99

20140311455

2014-10-23

Dual fuel injector with F, A and Z orifice control

#100

20140311451

2014-10-23

Dual fuel system and engine system operating method

#101

20140311445

2014-10-23

Method of switching from a liquefied gas fuel to a liquid fuel being provided to a direct injection combustion engine, and direct injection bi-fuel system for such an engine

#102

20140311444

2014-10-23

Dual fuel common rail transient pressure control and engine using same

#103

20140297159

2014-10-02

Method and system for engine control

#104

20140251292

2014-09-11

Fuel control system and associated method

#105

20140246508

2014-09-04

Gaseous metering control for dual fluid injector

#106

20140245995

2014-09-04

Dual fuel system for an internal combustion engine

#107

20140238351

2014-08-28

Method and apparatus for pumping fuel to a fuel injection system

#108

20140202420

2014-07-24

Arrangement and method for an internal combustion engine with direct dual fuel injection

#109

20140196687

2014-07-17

In-cylinder dynamic gas blending fuel injector and dual fuel engine

#110

20140182551

2014-07-03

Gaseous fuel system, direct injection gas engine system, and method

#111

20140180561

2014-06-26

Method for controlling fuel injection for a dual fuel engine

#112

20140130776

2014-05-15

Multi-fuel delivery system

#113

20140123936

2014-05-08

Debris robust fuel injector with co-axial control valve members and fuel system using same

#114

20140116375

2014-05-01

Dual fuel engine and strategy to avoid atmospheric venting

#115

20140069386

2014-03-13

Limp home capable dual fuel engine and machine using same

#116

20140069385

2014-03-13

Fuel system for a multi-fuel engine

#117

20140034023

2014-02-06

Dual check fuel injector and fuel system using same

#118

20140034020

2014-02-06

Co-axial quill assembly retainer and dual fuel common rail engine using same

#119

20140026847

2014-01-30

System and method for adjusting fuel reactivity

#120

20140020773

2014-01-23

Diesel fuel leakage control system for a dual fuel injector

#121

20140020658

2014-01-23

Diesel engine for a LPG-diesel mixture

#122

20130327296

2013-12-12

Dual fuel common rail engine with co-axial quill assembly

#123

20130311067

2013-11-21

Direct injection gas engine and method

#124

20130233284

2013-09-12

High-pressure fuel pump for an internal combustion engine with direct injection

#125

20130214065

2013-08-22

Fuel-injection valve for an internal combustion engine

#126

20130160741

2013-06-27

Dual fuel injector having fuel leak seals

#127

20130139790

2013-06-06

Two-phase fuel injection valve for diesel engine and gas engine including nozzle having pumping function

#128

20130125867

2013-05-23

Dual fuel supply system for a direct-injection system of a diesel engine with on-board mixing

#129

20130118448

2013-05-16

Dual fuel common rail system and fuel injector

#130

20130098333

2013-04-25

Dual fuel injector with hydraulic lock seal and liquid leak purge strategy

#131

20130081593

2013-04-04

Single actuator fuel injector for dual fuels

#132

20130073183

2013-03-21

Open-valve Port Fuel Injection Of Alcohol In Multiple Injector Engines

#133

20130068193

2013-03-21

Dual fuel injection valve apparatus including a hybrid nozzle for diesel and gas engines

#134

20130068186

2013-03-21

Method for operating a pressure ignition engine

#135

20130055987

2013-03-07

INTERNAL COMBUSTION RECIPROCATING PISTON ENGINE AND METHOD OF OPERATING THE SAME

#136

20130048750

2013-02-28

Dual fuel injector with hydraulic lock seal

#137

20130047964

2013-02-28

Fuel injector for dual fuel common rail system

#138

20130042836

2013-02-21

FUEL INJECTOR ADAPTER DEVICE AND METHOD

#139

20130037622

2013-02-14

Three-way needle control valve and dual fuel injection system using same

#140

20130036990

2013-02-14

Fuel supply system

#141

20120325350

2012-12-27

Dual fuel injector for a common rail system

#142

20120325180

2012-12-27

Dual fuel injection compression ignition engine and method of operating same

#143

20120312280

2012-12-13

Fuel supply system and high-pressure pump for combustion engine

#144

20120291752

2012-11-22

Quill assembly for a dual fuel common rail fuel system

#145

20120285419

2012-11-15

Dual fuel injector feed using differential length quills

#146

20120285417

2012-11-15

Dual fuel injector and engine using same

#147

20120255523

2012-10-11

DUAL FUEL INJECTOR AND ENGINE USING SAME

#148

20120216773

2012-08-30

INJECTION OF GASEOUS FUELS

#149

20120210981

2012-08-23

Engine with gaseous and/or liquid fuel injector

#150

20120187218

2012-07-26

Dual fuel injector for a common rail system

#151

20120143480

2012-06-07

Method and system for engine control

#152

20120048242

2012-03-01

Fuel system for a multi-fuel engine

#153

20120041665

2012-02-16

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

#154

20110290203

2011-12-01

Approach for controlling fuel flow with alternative fuels

#155

20110288751

2011-11-24

Method for controlling fuel injection for a dual fuel engine

#156

20110232601

2011-09-29

COMPRESSION IGNITION ENGINE WITH BLENDED FUEL INJECTION

#157

20110224884

2011-09-15

Fuel control system and associated method

#158

20110220063

2011-09-15

Fuel system for multi-fuel engine

#159

20110168133

2011-07-14

Approach for controlling fuel flow with alternative fuels

#160

20110155102

2011-06-30

DIRECT INJECTION BI-FUEL SYSTEM FOR COMBUSTION ENGINES

#161

20110146619

2011-06-23

Adaptive control system for fuel injectors and igniters

#162

20110108631

2011-05-12

Fuel injection valve and method for co-injecting a liquid and a gaseous fuel into the combustion chamber of an internal combustion engine

#163

20110108004

2011-05-12

Dual fuel connector

#164

20110106403

2011-05-05

Approach for reducing overheating of direct injection fuel injectors

#165

20110088657

2011-04-21

Multi-fuel internal combustion engine

#166

20110088655

2011-04-21

Fuel injection control method for a direct injection gaseous-fuelled internal combustion engine

#167

20110073057

2011-03-31

Fuel system for multi-fuel engine

#168

20110067674

2011-03-24

Spark ignition engine that uses intake port injection of alcohol to extend knock limits

#169

20110023853

2011-02-03

Homogenizing fuel enhancement system

#170

20110017174

2011-01-27

Engine with gaseous and/or liquid fuel injector

#171

20110011369

2011-01-20

Arrangement and Method for an Internal Combustion Engine with Direct Dual Fuel Injection

#172

20100324801

2010-12-23

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

#173

20100288211

2010-11-18

Fuel system and method for burning liquid ammonia in engines and boilers

#174

20100224167

2010-09-09

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

#175

20100217503

2010-08-26

Approach for enhancing emissions control device warmup in a direct injection engine system

#176

20100199948

2010-08-12

Concurrent injection of liquid and gaseous fuels in an engine

#177

20100198481

2010-08-05

Fuel Tank System for Direct Ethanol Injection Octane Boosted Gasoline Engine

#178

20100147262

2010-06-17

Engine fuel supply system

#179

20100131178

2010-05-27

Method of operating an internal combustion engine

#180

20100131177

2010-05-27

Method of operating an internal combustion engine

#181

20100126468

2010-05-27

Method of manufacturing and installation of high pressure liquid LPG fuel supply and dual or mixed fuel supply systems

#182

20100063712

2010-03-11

SINGLE NOZZLE DIRECT INJECTION SYSTEM FOR RAPIDLY VARIABLE GASOLINE/ANTI-KNOCK AGENT MIXTURES

#183

20100024789

2010-02-04

Fuel system for multi-fuel engine

#184

20100010725

2010-01-14

Multifuel internal combustion engine and combustion controlling method thereof

#185

20090312935

2009-12-17

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

#186

20090292443

2009-11-26

Approach for reducing overheating of direct injection fuel injectors

#187

20090292442

2009-11-26

Approach for enhancing emissions control device warmup in a direct injection engine system

#188

20090229572

2009-09-17

High pressure common rail fuel system with gas injection

#189

20090194081

2009-08-06

MULTIFUEL INTERNAL COMBUSTION ENGINE

#190

20090188479

2009-07-30

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

#191

20090150050

2009-06-11

FUEL INJECTOR AND FUEL INJECTION DEVICE HAVING SAME

#192

20090134246

2009-05-28

Fuel injector

#193

20090112442

2009-04-30

Control apparatus and method for internal combustion engine and fuel property determining apparatus and method

#194

20090070021

2009-03-12

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

#195

20090070008

2009-03-12

Method and apparatus for operating a dual fuel internal combustion engine

#196

20090020631

2009-01-22

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

#197

20080289600

2008-11-27

Controller for homogenous charge compression ignition internal combustion engine

#198

20080289599

2008-11-27

Controller for homogeneous charge compression ignition internal combustion engine

#199

20080245318

2008-10-09

Hydrogen-fueled internal combustion engine

#200

20080223344

2008-09-18

Internal combustion engine using hydrogen

#201

20080120008

2008-05-22

Flex-fuel variable displacement engine control system and method

#202

20080115759

2008-05-22

Flex-fuel variable displacement engine control system and method

#203

20080103678

2008-05-01

Cylinder direct injection type internal combustion engine

#204

20080053399

2008-03-06

Fuel tank system for direct ethanol injection octane boosted gasoline engine

#205

20080022965

2008-01-31

Gas engine

#206

20070289573

2007-12-20

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

#207

20070215112

2007-09-20

Engine having multiple injector locations

#208

20070199539

2007-08-30

Method and apparatus for delivering two fuels to a direct injection internal combustion engine

#209

20070175459

2007-08-02

Fuel control system and associated method

#210

20070125338

2007-06-07

Fuel injection system

#211

20070119414

2007-05-31

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

#212

20070040053

2007-02-22

Fuel injection apparatus for internal combustion engine

#213

20060236974

2006-10-26

Fuel injection system and method of operation for a gaseous fuelled engine with liquid pilot fuel ignition

#214

20060102136

2006-05-18

Optimized fuel management system for direct injection ethanol enhancement of gasoline engines

#215

20060086825

2006-04-27

Gaseous fuel injector

#216

20060081722

2006-04-20

Gaseous fuel injector for internal combustion engine

#217

20050224601

2005-10-13

Liquid cooled fuel injection valve and method of operating a liquid cooled fuel injection valve

#218

20050056264

2005-03-17

Fuel composition supply means for spark ignition engines

#219

20050028787

2005-02-10

Variable fuel and fluid delivery system

#220

18788520

2025-07-15

Dual fuel system having overflow buffer for hastening fuel switchover

#221

18733122

2025-12-02

Dual fuel system and method feeding same fuel at two pressures to fuel injector

#222

18732686

2025-05-13

Multi-function fuel injector valve in dual fuel system and fuel system operating method

#223

18522998

2024-12-24

Valve cover assembly for internal combustion engine

#224

18373388

2025-02-25

Dual fuel engine system having fuel-actuated unit pumps and method

#225

18361117

2024-06-11

System and method for measuring fluid delivery from a multi-fluid injector

#226

18323897

2024-02-13

Two stage mixed fuel sensing system

#227

18073430

2023-10-03

Multi-fuel injection system and injector

#228

17355680

2022-07-12

Engine system operating strategy apportioning fuel injection between upstream and downstream injection locations