ClassID:

139455

F02D19/029 - 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 gaseous fuels; Measuring or estimating parameters related to the fuel supply system Determining density, viscosity, concentration or composition

Recent Application in this class:
#1
20260022672
2026-01-22

ENGINE SYSTEM AND METHOD FOR DETERMINING FUEL CHARACTERISTICS

#2
20250305461
2025-10-02

Natural Gas Engines With Fuel Quality Determination

#3
20250067225
2025-02-27

ENGINE SYSTEM

#4
20240410322
2024-12-12

Natural Gas Engines With Fuel Quality Determination

#5
20240183318
2024-06-06

METHOD OF SUPPLYING AN INTERNAL COMBUSTION PISTON ENGINE WITH GASEOUS FUEL CONTAINING HYDROGEN AND HYDROCARBONS

#6
20240110525
2024-04-04

Natural gas engines with fuel quality determination

#7
20240011445
2024-01-11

Vehicle controller, vehicle control method, and storage medium

#8
20230129719
2023-04-27

Variable energy ignition systems, methods, and apparatuses

#9
20220074379
2022-03-10

Variable energy ignition systems, methods, and apparatuses

#10
20220010740
2022-01-13

Method, apparatus, and system for controlling natural gas engine operation based on fuel properties

#11
20210388778
2021-12-16

Air-fuel metering for internal combustion reciprocating engines

#12
20210095605
2021-04-01

Air-fuel metering for internal combustion reciprocating engines

#13
20200318562
2020-10-08

Fuel type prediction from mass flow measurements and thermal conductivity sensor

#14
20200200104
2020-06-25

Engine control system

#15
20200141340
2020-05-07

Intake air assessment for industrial engines

#16
20200018249
2020-01-16

Monitoring the function of solenoid valves for fuel injection systems

#17
20190323443
2019-10-24

A METHOD AND A SYSTEM FOR CONTROLLING A GAS ENGINE

#18
20190178175
2019-06-13

Method for measuring the pressure of a compressed gaseous fuel in a supply line of an engine equipping a motor vehicle and associated measuring device

#19
20190120151
2019-04-25

Fuel type prediction from mass flow measurements and thermal conductivity sensor

#20
20190101068
2019-04-04

A METHOD AND A SYSTEM FOR ADAPTING ENGINE CONTROL OF A GAS ENGINE IN A VEHICLE

#21
20180328293
2018-11-15

Combustion system control device

#22
20180320602
2018-11-08

Lubricity estimation device and fuel supply control device

#23
20180266355
2018-09-20

Engine and control strategy for injecting augmenting fuel to stream of gaseous fuel and air

#24
20180266311
2018-09-20

Determining dimethyl ether (DME) fuel quality

#25
20180216542
2018-08-02

Powertrain arrangement, method, and dedicated measuring apparatus for use with additized dimethyl ether (DME) fuel

#26
20180073467
2018-03-15

Natural gas supply system for providing conditioned natural gas to dual fuel engines

#27
20180023488
2018-01-25

System and method for managing a volatile organic compound emission stream

#28
20170268438
2017-09-21

Method for operating an internal combustion engine based on a characteristic value determined from a lamda value, and internal combustion engine

#29
20170218837
2017-08-03

Gas quality virtual sensor for an internal combustion engine

#30
20170204778
2017-07-20

Uniflow-scavenged two-cycle engine

#31
20170175663
2017-06-22

Air fuel ratio control for an internal combustion engine that can be operated with fuels at different properties

#32
20170058790
2017-03-02

System and method for managing a volatile organic compound emission stream

#33
20170030300
2017-02-02

Compressed gas capture and recovery system

#34
20170022919
2017-01-26

System for sensing and controlling fuel gas constituent levels

#35
20160327464
2016-11-10

Method and system for estimating the specific gravity of an unknown fuel source in a multi-fuel engine

#36
20160313163
2016-10-27

Method and control device for determining a gas consumption of a gas-powered engine

#37
20160305359
2016-10-20

FUEL INJECTION CONTROL DEVICE

#38
20150354520
2015-12-10

Valve for fuel supply system

#39
20150300273
2015-10-22

Natural gas quality sensor and method for using the same

#40
20150090222
2015-04-02

Engine system having fuel quality sensor

#41
20140360471
2014-12-11

Control system for internal combustion engine and inert gas concentration detecting device for compressed natural gas

#42
20140130777
2014-05-15

Detection method of airtight failure in working-gas circulating type gas engine, and working-gas circulating type gas engine using the method

#43
20140020668
2014-01-23

Gas engine control device

#44
20120273049
2012-11-01

Detecting and automatically responding to airborne hydrocarbon gas

#45
20120098666
2012-04-26

Hydrocarbon gas delivery system

#46
20120060796
2012-03-15

Liquefied petroleum gas (LPG) pump control systems and methods

#47
20110265464
2011-11-03

AMMONIA BURNING INTERNAL COMBUSTION ENGINE

#48
20110209691
2011-09-01

Working gas circulation engine

#49
20110174281
2011-07-21

Carbureted natural gas turbo charged engine

#50
20110144889
2011-06-16

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

#51
20110056466
2011-03-10

Working gas circulation engine

#52
20100307614
2010-12-09

APPARATUS FOR FEEDING A FUEL, IN PARTICULAR LPG, TO AN INTERNAL COMBUSTION ENGINE

#53
20100217500
2010-08-26

Diesel fuel engine injection system and method therefor

#54
20100122688
2010-05-20

System for closed-loop control of combustion in engines

#55
20090088983
2009-04-02

Method and device for determining the composition of a gas mixture of a fuel tank of a motor vehicle filled with CNG

#56
20090042151
2009-02-12

System and method for flame stabilization and control

#57
20080162335
2008-07-03

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

#58
20080147303
2008-06-19

Method and apparatus for controlling combustion in generator gas engine

#59
20080041034
2008-02-21

EXHAUST GAS PURIFICATION FOR A HYDROGEN ENGINE

#60
20080016883
2008-01-24

Motor vehicle operable by means of cryogenically stored fuel and having a compressed-air system

#61
20080011248
2008-01-17

System and method for control of a gas

#62
20070277526
2007-12-06

Carbureted natural gas turbo charged engine

#63
20070256737
2007-11-08

Gaseous fuel management system for automotive vehicle

#64
20070022733
2007-02-01

Electric power supply equipment

#65
20060124195
2006-06-15

Fueling nozzle with integral molecular leak sensor

#66
20060054145
2006-03-16

Heating apparatus for liquefied gas fuel supply system

#67
20060046218
2006-03-02

System and method for flame stabilization and control

#68
20050205022
2005-09-22

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

#69
20050177300
2005-08-11

Method of regulating an internal combustion engine

#70
20050172942
2005-08-11

Method of regulating an internal combustion engine

#71
20050166972
2005-08-04

System for supplying liquefied gas to a combustion engine with a minimum liquefied-gas level detector

#72
20050087177
2005-04-28

Fuel injection control method for liquefied petroleum gas injection engine and apparatus thereof

#73
18895622
2026-02-10

Methodology to enable efficient flex fuel operation with natural gas, hydrogen, and their blends

#74
17204264
2022-04-12

Methods and systems for operating a vehicle with two fuel tanks

#75
14667938
2016-11-22

System and method for managing a volatile organic compound emission stream