ClassID:

139451

F02D19/025 - 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 Failure diagnosis or prevention; Safety measures; Testing

Recent Application in this class:
#1
20260078706
2026-03-19

CONTROLLER

#2
20250264065
2025-08-21

CONTROLLER FOR INTERNAL COMBUSTION ENGINE

#3
20250154923
2025-05-15

HYDROGEN CAPTURE CANISTER

#4
20250067225
2025-02-27

ENGINE SYSTEM

#5
20240344484
2024-10-17

ANOMALY DETERMINATION DEVICE FOR INTERNAL COMBUSTION ENGINE

#6
20240018914
2024-01-18

Hydrogen pressure maintaining system of hydrogen fuel engine and control method for the same

#7
20230296063
2023-09-21

Misfire classification method and control unit for an internal combustion engine

#8
20210047971
2021-02-18

Leak detection in a hydrogen fuelled vehicle

#9
20200217277
2020-07-09

System for generating and supplying hydrogen gas to an internal combustion engine

#10
20200055375
2020-02-20

Methane safety systems for transport refrigeration units

#11
20200018249
2020-01-16

Monitoring the function of solenoid valves for fuel injection systems

#12
20190390614
2019-12-26

Fuel supply system

#13
20190359904
2019-11-28

Chemical warfare agents and related compounds as fuel for internal combustion engines

#14
20190211756
2019-07-11

Fuel pressure monitoring system of vaporizer

#15
20190202267
2019-07-04

Fuel system control for refrigeration unit engine

#16
20190162127
2019-05-30

Method for detecting a gas amount

#17
20190101069
2019-04-04

Gas valve unit and a method of performing a pressure test to a gas valve unit

#18
20180298840
2018-10-18

Engine device

#19
20180135575
2018-05-17

Filter pre-fill detection system and method

#20
20180135539
2018-05-17

Control system for internal combustion engine

#21
20180038336
2018-02-08

Device for preventing back fire of engine and method using the same

#22
20170204778
2017-07-20

Uniflow-scavenged two-cycle engine

#23
20170122831
2017-05-04

Project planning tool for a gas engine or a dual-fuel engine and method for parameterisation of the same

#24
20160369711
2016-12-22

Natural gas leak detection through pressure loss in pneumatic starter and prelube

#25
20160348613
2016-12-01

MINI GAS VALVE UNIT

#26
20160325769
2016-11-10

Managing a supply of gaseous fuel on a tender car

#27
20160230687
2016-08-11

Abnormality diagnosis apparatus and abnormality diagnosis method

#28
20160177857
2016-06-23

Method and diagnostic facility for checking high-pressure tank valves, high-pressure tank system and motor vehicle with a high-pressure tank system

#29
20160061685
2016-03-03

Gas internal combustion engine gas leak checking device and method for same

#30
20160053735
2016-02-25

Starting device for gas internal combustion engine

#31
20160032847
2016-02-04

Combustion control device for gas engine

#32
20160003178
2016-01-07

Method and system for estimating fuel system integrity

#33
20150354520
2015-12-10

Valve for fuel supply system

#34
20150316445
2015-11-05

Standard engine cold test system and method

#35
20150267647
2015-09-24

Gas engine assembly

#36
20150252737
2015-09-10

Electrical monitoring of gaseous fuel admission valves

#37
20150206359
2015-07-23

Liquefied petroleum gas tank leak detection systems and methods

#38
20150122224
2015-05-07

Method and system for engine control

#39
20150090221
2015-04-02

Control system for dual-fuel engine

#40
20150000635
2015-01-01

Controller and control method for gas engine

#41
20140352658
2014-12-04

System and method to diagnose fuel system pressure sensor

#42
20140331642
2014-11-13

Direct injection of diluents or secondary fuels in gaseous fuel engines

#43
20140283788
2014-09-25

Fuel supply system with leakage detection means

#44
20140239645
2014-08-28

Generator including a fuel shutoff valve

#45
20140214307
2014-07-31

Apparatus and method for in situ fuel injector calibration in an internal combustion engine

#46
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

#47
20140116537
2014-05-01

Fuel cutoff valve

#48
20140095052
2014-04-03

End-position-monitoring of a gas injector

#49
20140053800
2014-02-27

Dual fuel system diagnostics for dual fuel engine and machine using same

#50
20140014809
2014-01-16

Installation device for instrumentation device of stationary engine

#51
20130327295
2013-12-12

Gas engine system with detection function of abnormality occurrence of gas pressure detection mechanism

#52
20130244124
2013-09-19

Moving body

#53
20130238226
2013-09-12

Method and system for estimating fuel system integrity

#54
20130199499
2013-08-08

Method and system for engine control

#55
20130055712
2013-03-07

Gas engine

#56
20130054124
2013-02-28

Method of monitoring check valves arranged in gas feed lines of a gas engine

#57
20130013256
2013-01-10

SHUT-OFF VALVE FAULT DIAGNOSIS DEVICE

#58
20130000752
2013-01-03

Shut-off valve fault diagnosis device and fuel supply system

#59
20130000380
2013-01-03

Method for detecting high-pressure sealing performance of gas system after impact test of compressed natural gas vehicle

#60
20120296551
2012-11-22

Fuel injector control system and method to compensate for injector opening delay

#61
20120273049
2012-11-01

Detecting and automatically responding to airborne hydrocarbon gas

#62
20120098666
2012-04-26

Hydrocarbon gas delivery system

#63
20110265464
2011-11-03

AMMONIA BURNING INTERNAL COMBUSTION ENGINE

#64
20110226362
2011-09-22

Auxiliary fuel tank

#65
20110186012
2011-08-04

Liquid fuel injection engine

#66
20110094459
2011-04-28

REGULATING A HYDROCARBON COMBUSTION PROCESS USING A SET OF DATA INDICATIVE OF HYDROCARBON FUEL CONSUMED CORRESPONDING TO A MONITORED ENGINE OPERATING CHARACTERISTIC

#67
20100126261
2010-05-27

Method for measuring the instantaneous flow of an injector for gaseous fuels

#68
20090301443
2009-12-10

Fuel feeding device for gas engine

#69
20090192698
2009-07-30

Method for automatically controlling a stationary gas engine

#70
20090055077
2009-02-26

Operating method and device for a gas-operated internal combustion engine

#71
20090050189
2009-02-26

Motor vehicle having a unit operated by a cryogenically stored fuel

#72
20090037076
2009-02-05

METHOD OF INJECTING FLUID, A METHOD OF AND APPARATUS FOR CONTROLLING INJECTION OF FLUID, AND AN INTERNAL COMBUSTION ENGINE

#73
20090007695
2009-01-08

Instantaneous flow rate measurement instrument of gaseous fuel injector

#74
20080302111
2008-12-11

Apparatus and method for pumping a cryogenic fluid from a storage vessel and diagnosing cryogenic pump performance

#75
20070256737
2007-11-08

Gaseous fuel management system for automotive vehicle

#76
20070044774
2007-03-01

LPI engine system

#77
20070044769
2007-03-01

Control circuit for injectors having cut solenoids for LPI engines and cut solenoid control method and diagnostic method thereof

#78
20070044760
2007-03-01

Nitrogen enriched combustion of a natural gas internal combustion engine to reduce NOemissions

#79
20060249121
2006-11-09

Valve control method for circuitry for power generation systems

#80
20060180128
2006-08-17

Stuck-open failure detection system for gas-fuel injection valve

#81
20050193991
2005-09-08

Fuel pump noise-reduction apparatus in liquefied petroleum injection vehicle

#82
20050087177
2005-04-28

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