Adapters, sockets or the like to mount injection valves onto engines; Fuel guiding passages between injectors and the air intake system or the combustion chamber

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F02M21/0281

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FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F02Combustion engines F02MSUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF F02M21/00Apparatus for supplying engines with non-liquid fuels

Current Industry

F02M21/0281Adapters, sockets or the like to mount injection valves onto engines; Fuel guiding passages between injectors and the air intake system or the combustion chamber

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Fuel supply device with injector and vapor management
- Patent number 12,123,374
- Issue date Oct 22, 2024
- WALBRO LLC
- William E. Galka
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Internal combustion engine
- Patent number 12,092,056
- Issue date Sep 17, 2024
- JCB Research
- Kevin Browne
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Intake runner for gaseous fuel engine, system, and method
- Patent number 12,065,992
- Issue date Aug 20, 2024
- Caterpillar Inc.
- Jaswinder Singh
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Fuel supply device with injector and vapor management
- Patent number 11,920,544
- Issue date Mar 5, 2024
- WALBRO LLC
- William E. Galka
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Fastener-driving tool with multiple combustion chambers and usable...
- Patent number 11,911,886
- Issue date Feb 27, 2024
- Illinois Tool Works Inc.
- Marc Largo
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Internal combustion engine
- Patent number 11,713,735
- Issue date Aug 1, 2023
- JCB Research
- Kevin Browne
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Mixture formation device for a gas engine and gas engine
- Patent number 11,181,051
- Issue date Nov 23, 2021
- Volkswagen Aktiengesellschaft
- Christian-B. Klüting
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Fastener-driving tool with multiple combustion chambers and usable...
- Patent number 11,179,837
- Issue date Nov 23, 2021
- Illinois Tool Works Inc.
- Marc Largo
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Precombustion chamber gas engine
- Patent number 11,174,778
- Issue date Nov 16, 2021
- MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
- Kazutoshi Nomura
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Direct injection gas injector with an elastomer seal
- Patent number 11,162,459
- Issue date Nov 2, 2021
- Robert Bosch GmbH
- Guenther Hohl
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Internal combustion engine with gas feeding system
- Patent number 10,619,556
- Issue date Apr 14, 2020
- C.R.F. Societa Consortile per Azioni
- Francesco Vattaneo
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Spark plug with supply passage for fuel, and a system with same
- Patent number 10,598,130
- Issue date Mar 24, 2020
- Federal-Mogul Ignition GmbH
- Werner Niessner
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Low pressure natural gas direct injection fuel injector assembly
- Patent number 10,428,767
- Issue date Oct 1, 2019
- CRAZY DIAMOND PERFORMANCE INC.
- Kevin Fern
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Fuel injector mounting system for mounting an injector to an engine...
- Patent number 10,428,780
- Issue date Oct 1, 2019
- Fairbanks Morse, LLC
- Joseph C. Eves
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Apparatus and method for filling LPG vehicle with LPG
- Patent number 10,428,766
- Issue date Oct 1, 2019
- Hyundai Motor Company
- Chang Han Kim
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Cylinder head
- Patent number 10,260,450
- Issue date Apr 16, 2019
- GE Jenbacher GmbH & Co. OG
- Raphael Jacob
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Gas injector including an outwardly opening valve closure element
- Patent number 10,208,711
- Issue date Feb 19, 2019
- Robert Bosch GmbH
- Friedrich Moser
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Apparatus and method for filling LPG vehicle with LPG
- Patent number 10,208,710
- Issue date Feb 19, 2019
- Hyundai Motor Company
- Chang Han Kim
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Pre-chamber gas valve
- Patent number 10,184,386
- Issue date Jan 22, 2019
- GE Jenbacher GmbH & Co. OG
- Raphael Jacob
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Directly-injecting gas injector providing improved cooling
- Patent number 10,184,428
- Issue date Jan 22, 2019
- Robert Bosch GmbH
- Guenther Hohl
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Cylinder head
- Patent number 10,100,714
- Issue date Oct 16, 2018
- GE Jenbacher GmbH & Co. OG
- Raphael Jacob
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Gas engine and assembling method for gas engine
- Patent number 10,077,708
- Issue date Sep 18, 2018
- MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
- Yuta Furukawa
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Multi-fuel engine system
- Patent number 9,995,255
- Issue date Jun 12, 2018
- General Electric Company
- Alexis Gruschow
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information Patent Grant
Dual fuel common rail engine with co-axial quill assembly
- Patent number 9,890,741
- Issue date Feb 13, 2018
- Caterpillar Inc.
- Dennis H. Gibson
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Gaseous fuel admixing device for a gas-powered internal combustion...
- Patent number 9,874,177
- Issue date Jan 23, 2018
- NONOX B.V.
- Peter-Josef Cremer
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Gaseous fuel mixer and shutoff valve
- Patent number 9,869,278
- Issue date Jan 16, 2018
- Robert Bosch GmbH
- Paul William Schwark
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Multi-fuel engine system
- Patent number 9,845,774
- Issue date Dec 19, 2017
- General Electric Company
- Alexis Gruschow
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Efficiency and emissions improvements for natural gas conversions o...
- Patent number 9,835,066
- Issue date Dec 5, 2017
- CLEAN TRAIN PROPULSION
- David Cook
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Pre-combustion-chamber type gas engine
- Patent number 9,816,430
- Issue date Nov 14, 2017
- Mitsubishi Heavy Industries, Ltd.
- Akihiro Yuuki
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Uniflow-scavenging-type two-cycle engine
- Patent number 9,810,142
- Issue date Nov 7, 2017
- IHI Corporation
- Yutaka Masuda
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents

Information Patent Application
INJECTOR FOR GASEOUS FUEL
- Publication number 20240392736
- Publication date Nov 28, 2024
- BORGWARNER LUXEMBOURG AUTOMOTIVE SYSTEMS S.A.
- Manfred KOLKMAN
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
INTAKE RUNNER FOR GASEOUS FUEL ENGINE, SYSTEM, AND METHOD
- Publication number 20240360806
- Publication date Oct 31, 2024
- Caterpillar Inc.
- Jaswinder Singh
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
INTAKE RUNNER FOR GASEOUS FUEL ENGINE, SYSTEM, AND METHOD
- Publication number 20240247622
- Publication date Jul 25, 2024
- Caterpillar Inc.
- Jaswinder Singh
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
FASTENER-DRIVING TOOL WITH MULTIPLE COMBUSTION CHAMBERS AND USABLE...
- Publication number 20240173834
- Publication date May 30, 2024
- Illinois Tool Works Inc.
- Marc Largo
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
FUEL SUPPLY DEVICE WITH INJECTOR AND VAPOR MANAGEMENT
- Publication number 20240175411
- Publication date May 30, 2024
- WALBRO LLC
- William E. Galka
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
INJECTOR WITH INTEGRATED FILTER
- Publication number 20240125292
- Publication date Apr 18, 2024
- ROBERT BOSCH GmbH
- Franz THOEMMES
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Injector Sleeve for an Injector, and Blowing Device and Internal Co...
- Publication number 20230374955
- Publication date Nov 23, 2023
- Daimler Truck AG
- Moritz SCHUMACHER
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Internal Combustion Engine
- Publication number 20230323842
- Publication date Oct 12, 2023
- JCB Research
- Kevin Browne
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
FUEL SUPPLY DEVICE WITH INJECTOR AND VAPOR MANAGEMENT
- Publication number 20230123915
- Publication date Apr 20, 2023
- WALBRO LLC
- William E. Galka
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Internal Combustion Engine
- Publication number 20230095893
- Publication date Mar 30, 2023
- JCB Research
- Kevin Browne
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
FASTENER-DRIVING TOOL WITH MULTIPLE COMBUSTION CHAMBERS AND USABLE...
- Publication number 20220072692
- Publication date Mar 10, 2022
- Illinois Tool Works Inc.
- Marc Largo
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
LIQUID INJECTED PROPANE FUEL SYSTEM
- Publication number 20200325855
- Publication date Oct 15, 2020
- Auto Gas Services, LLC
- JOHN PATRICK OMUNDSON
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
MIXTURE FORMATION DEVICE FOR A GAS ENGINE AND GAS ENGINE
- Publication number 20200032722
- Publication date Jan 30, 2020
- Volkswagen Aktiengesellschaft
- Christian-B. KLÜTING
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
FASTENER-DRIVING TOOL WITH MULTIPLE COMBUSTION CHAMBERS AND USABLE...
- Publication number 20190168367
- Publication date Jun 6, 2019
- Illinois Tool Works Inc.
- Marc Largo
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
SPARK PLUG WITH SUPPLY PASSAGE FOR FUEL, AND A SYSTEM WITH SAME
- Publication number 20190170090
- Publication date Jun 6, 2019
- Federal-Mogul Ignition GmbH
- Werner Niessner
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
APPARATUS AND METHOD FOR FILLING LPG VEHICLE WITH LPG
- Publication number 20190145353
- Publication date May 16, 2019
- Hyundai Motor Company
- Chang Han Kim
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
FUEL INJECTOR ASSEMBLY
- Publication number 20180023517
- Publication date Jan 25, 2018
- Crazy Diamond Performance Inc.
- Kevin Fern
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
APPARATUS AND METHOD FOR FILLING LPG VEHICLE WITH LPG
- Publication number 20170356389
- Publication date Dec 14, 2017
- Hyundai Motor Company
- Chang Han KIM
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
DIRECTLY-INJECTING GAS INJECTOR PROVIDING IMPROVED COOLING
- Publication number 20170328310
- Publication date Nov 16, 2017
- ROBERT BOSCH GmbH
- Guenther Hohl
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
DIRECT INJECTION GAS INJECTOR WITH AN ELASTOMER SEAL
- Publication number 20170306891
- Publication date Oct 26, 2017
- ROBERT BOSCH GmbH
- Guenther Hohl
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
MODULES AND SUB-MODULES FOR USE IN CONVERTING A MARINE VESSEL TO GA...
- Publication number 20170298847
- Publication date Oct 19, 2017
- Blue Gas Marine, Inc.
- Jose Miguel Patricio GUERREIRO
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
SYSTEMS FOR THERMAL MANAGEMENT OF ENGINE VALVES
- Publication number 20160032868
- Publication date Feb 4, 2016
- GENERAL ELECTRIC COMPANY
- Sudheer Kadappa Khanapure
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Dual Fuel Common Rail Engine with Co-Axial Quill Assembly
- Publication number 20150361925
- Publication date Dec 17, 2015
- Caterpillar Inc.
- Dennis H. Gibson
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
FUEL INJECTION ADAPTERS AND RELATED SYSTEMS AND METHODS
- Publication number 20150233330
- Publication date Aug 20, 2015
- GO NATURAL CNG, LLC
- Matthew M. MATSUKAWA
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
INJECTOR SYSTEM, IN PARTICULAR INJECTOR BLOCK FOR FUEL INJECTION SY...
- Publication number 20140366844
- Publication date Dec 18, 2014
- Wolf Stahr
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
INJECTOR FOR A SYSTEM FOR FEEDING GAS FUEL TO AN INTERNAL COMBUSTIO...
- Publication number 20140339342
- Publication date Nov 20, 2014
- Mario Gaiardo
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
FUEL INJECTOR ASSEMBLY AND FUEL INJECTION SYSTEM
- Publication number 20140338633
- Publication date Nov 20, 2014
- Crazy Diamond Performance Inc.
- Kevin Fern
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
DUAL FUEL SYSTEM AND ENGINE SYSTEM OPERATING METHOD
- Publication number 20140311451
- Publication date Oct 23, 2014
- Caterpillar Inc.
- Dianqi Fang
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
CYLINDER HEAD WITH FUEL GUIDING PORTION
- Publication number 20140305408
- Publication date Oct 16, 2014
- CATERPILLAR MOTOREN GMBH & CO. KG
- Benjamin Bleyer
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
PRECHAMBER SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
- Publication number 20140251259
- Publication date Sep 11, 2014
- GE JENBACHER GMBH & CO OG
- Frederic DUMSER
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Adapters, sockets or the like to mount injection valves onto engines; Fuel guiding passages between injectors and the air intake system or the combustion chamber

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Fuel supply device with injector and vapor management

Internal combustion engine

Intake runner for gaseous fuel engine, system, and method

Fuel supply device with injector and vapor management

Fastener-driving tool with multiple combustion chambers and usable...

Internal combustion engine

Mixture formation device for a gas engine and gas engine

Fastener-driving tool with multiple combustion chambers and usable...

Precombustion chamber gas engine

Direct injection gas injector with an elastomer seal

Internal combustion engine with gas feeding system

Spark plug with supply passage for fuel, and a system with same

Low pressure natural gas direct injection fuel injector assembly

Fuel injector mounting system for mounting an injector to an engine...

Apparatus and method for filling LPG vehicle with LPG

Cylinder head

Gas injector including an outwardly opening valve closure element

Apparatus and method for filling LPG vehicle with LPG

Pre-chamber gas valve

Directly-injecting gas injector providing improved cooling

Cylinder head

Gas engine and assembling method for gas engine

Multi-fuel engine system

Dual fuel common rail engine with co-axial quill assembly

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

Gaseous fuel mixer and shutoff valve

Multi-fuel engine system

Efficiency and emissions improvements for natural gas conversions o...

Pre-combustion-chamber type gas engine

Uniflow-scavenging-type two-cycle engine

Patents Applicationslast 30 patents

INJECTOR FOR GASEOUS FUEL

INTAKE RUNNER FOR GASEOUS FUEL ENGINE, SYSTEM, AND METHOD

INTAKE RUNNER FOR GASEOUS FUEL ENGINE, SYSTEM, AND METHOD

FASTENER-DRIVING TOOL WITH MULTIPLE COMBUSTION CHAMBERS AND USABLE...

FUEL SUPPLY DEVICE WITH INJECTOR AND VAPOR MANAGEMENT

INJECTOR WITH INTEGRATED FILTER

Injector Sleeve for an Injector, and Blowing Device and Internal Co...

Internal Combustion Engine

FUEL SUPPLY DEVICE WITH INJECTOR AND VAPOR MANAGEMENT

Internal Combustion Engine

FASTENER-DRIVING TOOL WITH MULTIPLE COMBUSTION CHAMBERS AND USABLE...

LIQUID INJECTED PROPANE FUEL SYSTEM

MIXTURE FORMATION DEVICE FOR A GAS ENGINE AND GAS ENGINE

FASTENER-DRIVING TOOL WITH MULTIPLE COMBUSTION CHAMBERS AND USABLE...

SPARK PLUG WITH SUPPLY PASSAGE FOR FUEL, AND A SYSTEM WITH SAME

APPARATUS AND METHOD FOR FILLING LPG VEHICLE WITH LPG

FUEL INJECTOR ASSEMBLY

APPARATUS AND METHOD FOR FILLING LPG VEHICLE WITH LPG

DIRECTLY-INJECTING GAS INJECTOR PROVIDING IMPROVED COOLING

DIRECT INJECTION GAS INJECTOR WITH AN ELASTOMER SEAL

MODULES AND SUB-MODULES FOR USE IN CONVERTING A MARINE VESSEL TO GA...

SYSTEMS FOR THERMAL MANAGEMENT OF ENGINE VALVES

Dual Fuel Common Rail Engine with Co-Axial Quill Assembly

FUEL INJECTION ADAPTERS AND RELATED SYSTEMS AND METHODS

INJECTOR SYSTEM, IN PARTICULAR INJECTOR BLOCK FOR FUEL INJECTION SY...

INJECTOR FOR A SYSTEM FOR FEEDING GAS FUEL TO AN INTERNAL COMBUSTIO...

FUEL INJECTOR ASSEMBLY AND FUEL INJECTION SYSTEM

DUAL FUEL SYSTEM AND ENGINE SYSTEM OPERATING METHOD

CYLINDER HEAD WITH FUEL GUIDING PORTION

PRECHAMBER SYSTEM FOR AN INTERNAL COMBUSTION ENGINE