ClassID:

139774

F02D2041/225 - CPC Classification

Classification description:

Electrical control of supply of combustible mixture or its constituents; Safety or indicating devices for abnormal conditions; Diagnosis of the fuel system Leakage detection

Recent Application in this class:
#1
20260063085
2026-03-05

DIAGNOSTIC APPARATUS FOR ENGINE SYSTEM

#2
20250320841
2025-10-16

DEVICE FOR DETECTING A LEAKAGE IN A FUEL PATH OF AN ENGINE

#3
20250215843
2025-07-03

EVAPORATIVE EMISSIONS LEAK CHECK MODULE WITH PROPORTIONAL SOLENOID VALVE

#4
20250163866
2025-05-22

SYSTEMS AND METHODS OF DETECTING FLUID RELEASE

#5
20250163862
2025-05-22

FUGITIVE GAS DETECTION SYSTEM

#6
20250154914
2025-05-15

ENGINE OVERSPEED DEVICE AND METHOD

#7
20250101923
2025-03-27

Hydrogen leak detection system for an aircraft propulsion system

#8
20240200522
2024-06-20

ANOMALY DETECTION DEVICE FOR INTERNAL COMBUSTION ENGINE, ANOMALY DETECTION METHOD FOR INTERNAL COMBUSTION ENGINE, AND STORAGE MEDIUM

#9
20240200503
2024-06-20

System and a method for determining fuel injector leak

#10
20230324251
2023-10-12

Methods and systems for fuel system

#11
20230296064
2023-09-21

Fugitive gas detection system

#12
20230279819
2023-09-07

Engine overspeed device and method

#13
20230279818
2023-09-07

Leak testing apparatus

#14
20230139015
2023-05-04

Module for detecting a leakage of an arrangement

#15
20230015452
2023-01-19

System and method for measuring fuel injection during pump operation

#16
20220372924
2022-11-24

Fugitive gas detection system

#17
20220341370
2022-10-27

Method for diagnosing fuel leakage of a vehicle

#18
20220307439
2022-09-29

Determining the size of a leak in a fuel tank system

#19
20220299395
2022-09-22

Leak detection system and method

#20
20220268233
2022-08-25

Fuel leak detection system

#21
20220252018
2022-08-11

Method for controlling pressure with a direct metered pump based on engine subcycle mass balance

#22
20220228539
2022-07-21

Method and system for fuel system diagnostics

#23
20220220918
2022-07-14

Fuel system test apparatus and method

#24
20220220917
2022-07-14

Method and device for detecting leakage of high pressure fuel pump of vehicle

#25
20220146357
2022-05-12

Leak check strategies avoiding high vapor generation conditions

#26
20220112855
2022-04-14

Leakage Detector for Fuel Vapor Treatment Device

#27
20220099051
2022-03-31

Malfunction diagnostic device for leakage diagnostic device

#28
20220074364
2022-03-10

Evaporative fuel processing device

#29
20220042477
2022-02-10

System and method for measuring fuel injection during pump operation

#30
20220010743
2022-01-13

Fuel control system

#31
20210396192
2021-12-23

Adaptive high pressure fuel pump system and method for predicting pumped mass

#32
20210372343
2021-12-02

Method for operating an injection system of an internal combustion engine, an injection system for an internal combustion engine, and an internal combustion engine including an injection system

#33
20210310428
2021-10-07

Engine overspeed device and method

#34
20210293190
2021-09-23

Method for analyzing a fluid, a device for this purpose that includes means for carrying out the method, and a computer program that effectuates carrying out the method by the device

#35
20210239057
2021-08-05

Evaporative fuel processing device

#36
20210156332
2021-05-27

System and method for measuring fuel injection during pump operation

#37
20210156328
2021-05-27

Adaptive high pressure fuel pump system and method for predicting pumped mass

#38
20210123405
2021-04-29

Maintenance system

#39
20210062749
2021-03-04

Method for fuel injector characterization

#40
20210047971
2021-02-18

Leak detection in a hydrogen fuelled vehicle

#41
20210017926
2021-01-21

Gas emission monitoring and detection

#42
20210017925
2021-01-21

Fuel system test apparatus and method

#43
20200355135
2020-11-12

Exhaust purification system

#44
20200309069
2020-10-01

Device for operating a tank ventilation system of an internal combustion engine

#45
20200249115
2020-08-06

FUEL LINE LEAK DETECTION SYSTEM AND METHOD

#46
20200240367
2020-07-30

Vehicle control device

#47
20200232685
2020-07-23

Fuel leak detection in a gaseous fueled transportation refrigeration unit

#48
20200224610
2020-07-16

Leakage diagnosis supplement method for failure of vacuum pump using active purge pump and leakage diagnosis supplement system for failure of vacuum pump using active purge pump

#49
20200191097
2020-06-18

Fuel evaporative gas emission suppressing device

#50
20200182185
2020-06-11

Pressurized fuel system for an engine, and method for operating a pressurized fuel system for an engine

#51
20200172088
2020-06-04

Systems and methods for reducing vehicle evaporative emissions

#52
20200141321
2020-05-07

Method and system for safe gas turbine startup

#53
20200132023
2020-04-30

Evaporative fuel processing system

#54
20200063697
2020-02-27

Fuel vapor pressure detection by bi-directional pump

#55
20200055375
2020-02-20

Methane safety systems for transport refrigeration units

#56
20200018277
2020-01-16

Fuel Supply System And Fuel Distributor Block

#57
20200018249
2020-01-16

Monitoring the function of solenoid valves for fuel injection systems

#58
20200003143
2020-01-02

Evaporative emissions diagnostic during extended idle state

#59
20190390622
2019-12-26

Fault detection and isolation fuel system lean monitor rationalized with manifold absolute pressure sensor

#60
20190368447
2019-12-05

Evaporative emissions control system leak check module including first and second solenoid valves

#61
20190360888
2019-11-28

System and method for identifying a source of high pressure leakage

#62
20190338721
2019-11-07

Systems and methods for monitoring a fuel system

#63
20190338719
2019-11-07

Method and device for detecting and characterizing fuel leakage, and vehicle

#64
20190271273
2019-09-05

Systems and methods for inferring fuel vapor canister loading rate

#65
20190257262
2019-08-22

Fuel mixing occurrence detection device and fuel mixing occurrence detection method using fuel property

#66
20190242324
2019-08-08

Systems and methods for EVAP leak testing

#67
20190203653
2019-07-04

Fugitive gas detection system

#68
20190202267
2019-07-04

Fuel system control for refrigeration unit engine

#69
20190186422
2019-06-20

Systems and methods for vehicle fuel system and evaporative emissions system diagnostics

#70
20190136782
2019-05-09

Systems and methods for detecting gasoline direct injection fuel injector combustion seal leaks

#71
20190048820
2019-02-14

SYSTEMS FOR FUEL DELIVERY

#72
20190040812
2019-02-07

METHOD OF DIAGNOSING A HIGH PRESSURE FUEL DELIVERY SYSTEM

#73
20190040811
2019-02-07

Failure detection apparatus for fuel systems of engine

#74
20190017453
2019-01-17

Systems and methods for intelligent vehicle evaporative emissions diagnostics

#75
20180313289
2018-11-01

Method for diagnosing PCSV

#76
20180274491
2018-09-27

Fuel evaporative gas emission suppressor

#77
20180171938
2018-06-21

Diagnostic device for evaporated fuel processing device

#78
20180170343
2018-06-21

Valve control system configured to control an opening and closing of a valve device

#79
20180142629
2018-05-24

Mitigation of intermittent cylinder misfire on dual fuel engines

#80
20180128191
2018-05-10

Drive system with expander shut off upon detection of a leak

#81
20180100449
2018-04-12

Operating a gaseous fuel injector

#82
20180038303
2018-02-08

METHOD OF SWITCHING FROM A PRESSURIZED TO NON-PRESSURIZED FUEL SYSTEM WHEN AN EVAPORATIVE EMISSIONS LEAK IS DETECTED

#83
20180010542
2018-01-11

Method for detecting continuous injection during the operation of an internal combustion engine, injection system for an internal combustion engine and internal combustion engine

#84
20170356360
2017-12-14

Systems and methods for inferring fuel vapor canister loading rate

#85
20170350351
2017-12-07

Systems and methods for vehicle evaporative emissions system diagnostics

#86
20170342946
2017-11-30

Techniques for monitoring purge flow and detecting vapor canister leaks in an evaporative emissions system

#87
20170335788
2017-11-23

Method for checking a parameter correlating with a pressure in a pressure-dependent fluid-conveying system, control device and fluid-conveying system

#88
20170335783
2017-11-23

Method for operating an arrangement for using waste heat

#89
20170305415
2017-10-26

Method for detecting leaks in an intake manifold

#90
20170292475
2017-10-12

Systems and methods for opportunistic vehicle evaporative emissions test diagnostic

#91
20170276086
2017-09-28

DEVICE AND METHOD FOR CONTROLLING OF A VALVE

#92
20170260923
2017-09-14

Methods and systems for mitigating fuel injector leak

#93
20170254721
2017-09-07

Test methodology to reduce false rejections and increase number of containers tested for tightness

#94
20170204778
2017-07-20

Uniflow-scavenged two-cycle engine

#95
20170198671
2017-07-13

System and methods for reducing vehicle evaporative emissions

#96
20170184044
2017-06-29

Method for detecting defective injection nozzles of an internal combustion engine

#97
20170167415
2017-06-15

Fuel vapor purge system

#98
20170114744
2017-04-27

Fuel vapor line diagnostics

#99
20170067407
2017-03-09

Leaky injector mitigation action for vehicles during idle stop

#100
20170058809
2017-03-02

METHOD AND DEVICE FOR DIAGNOSING LEAK OF FUEL SYSTEM IN VEHICLE

#101
20170030281
2017-02-02

Systems for fuel delivery

#102
20170022920
2017-01-26

Vehicular liquid containment system and method for verifying integrity of same

#103
20160369711
2016-12-22

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

#104
20160341141
2016-11-24

Method for detecting fuel system degradation

#105
20160332620
2016-11-17

Method for detecting leaks in an intake manifold

#106
20160290249
2016-10-06

Apparatus for controlling the fuel supply of an internal combustion engine

#107
20160273472
2016-09-22

Gaseous fuel supply device

#108
20160266003
2016-09-15

Tank leakage diagnosis having a fuel tank as a pressure store

#109
20160245221
2016-08-25

Methods and systems for mitigating fuel injector leak

#110
20160230687
2016-08-11

Abnormality diagnosis apparatus and abnormality diagnosis method

#111
20160146144
2016-05-26

SYSTEM AND METHOD FOR ESTIMATING HIGH-PRESSURE FUEL LEAKAGE IN A COMMON RAIL FUEL SYSTEM

#112
20160138545
2016-05-19

System and method for estimating high-pressure fuel leakage in a common rail fuel system

#113
20160091381
2016-03-31

Method for determining a fault within a flow divider

#114
20160061154
2016-03-03

Purge valve detachment diagnostic systems and methods

#115
20160053735
2016-02-25

Starting device for gas internal combustion engine

#116
20160010584
2016-01-14

Processing system and method for calculating pressure decreases due to injection events in a high-pressure fuel system

#117
20160003178
2016-01-07

Method and system for estimating fuel system integrity

#118
20150345455
2015-12-03

Vehicular liquid containment system and method for verifying integrity of same

#119
20150300287
2015-10-22

Methods for detecting high pressure pump bore wear

#120
20150275790
2015-10-01

Fuel evaporative emission control apparatus

#121
20150233318
2015-08-20

Method of operating an internal combustion engine

#122
20150219522
2015-08-06

Correlation based fuel tank leak detection

#123
20150206359
2015-07-23

Liquefied petroleum gas tank leak detection systems and methods

#124
20150198123
2015-07-16

Systems and methods for determining the integrity of a vehicle fuel system

#125
20150167572
2015-06-18

Method and system for diagnosing common rail diesel engine

#126
20150152861
2015-06-04

Fault detection and mitigation in hybrid drive system

#127
20150121999
2015-05-07

Vehicle refueling detection method utilizing hydrocarbon sensor

#128
20150090221
2015-04-02

Control system for dual-fuel engine

#129
20150020777
2015-01-22

System and method for estimating high-pressure fuel leakage in a common rail fuel system

#130
20150019066
2015-01-15

Leak detection for canister purge valve

#131
20140338645
2014-11-20

Vehicle control apparatus and vehicle control method

#132
20140297071
2014-10-02

Estimating vehicle fuel Reid vapor pressure

#133
20140283788
2014-09-25

Fuel supply system with leakage detection means

#134
20140224220
2014-08-14

Processing system and method for calculating pressure decreases due to injection events in a high-pressure fuel system

#135
20140142832
2014-05-22

Gaseous fuel system and method for an engine

#136
20140116402
2014-05-01

Evaporated-fuel processing apparatus

#137
20140116401
2014-05-01

Evaporated fuel treatment device

#138
20140111327
2014-04-24

Methods and apparatuses for diagnosing leaks in a compressed natural gas delivery system

#139
20140107906
2014-04-17

Fuel system degradation test using two fuel tanks

#140
20130317716
2013-11-28

Fault detection and mitigation in hybrid drive system

#141
20130269364
2013-10-17

Systems and methods for detecting fuel leaks in gas turbine engines

#142
20130255636
2013-10-03

System and method for closing a tank valve

#143
20130253804
2013-09-26

Estimating a fuel leakage quantity of an injection valve during a shut-down time of a motor vehicle

#144
20130238226
2013-09-12

Method and system for estimating fuel system integrity

#145
20130213123
2013-08-22

Fault isolation in electronic returnless fuel system

#146
20130019670
2013-01-24

Method for detecting a malfunction in an electronically regulated fuel injection system of an internal combustion engine

#147
20130013175
2013-01-10

Methods and systems for common rail fuel system dynamic health assessment

#148
20130013174
2013-01-10

Methods and systems for common rail fuel system maintenance health diagnostic

#149
20120245819
2012-09-27

Method for monitoring an electromotively driven fuel pump and fuel feed unit having a fuel pump

#150
20120191427
2012-07-26

SYSTEM FOR DIAGNOSING ERROR CONDITIONS OF A GAS FLOW CONTROL SYSTEM FOR TURBOCHARGED ENGINES

#151
20120118053
2012-05-17

Method for determining the injection law of a fuel injector

#152
20120097252
2012-04-26

System and method for diagnosing faults in vacuum pumps of fuel systems and for diagnosing leaks in fuel systems

#153
20120048000
2012-03-01

METHOD AND SYSTEM TO DETECT AND MEASURE PIPING FUEL LEAK

#154
20120006299
2012-01-12

Assembly for connecting double high pressure wall line to a single-walled high pressure connector

#155
20110196594
2011-08-11

CONTROLLER FOR FUEL INJECTION SYSTEM

#156
20110041809
2011-02-24

Control method for a common rail fuel pump and apparatus for performing the same

#157
20110010080
2011-01-13

Internal combustion engine for use with a pressurized low viscosity fuel

#158
20100313849
2010-12-16

Fault detection and mitigation in hybrid drive system

#159
20100313641
2010-12-16

Method for diagnosing the condition of an engine fuel supply system

#160
20100288018
2010-11-18

FUEL SYSTEM FOR A COMBUSTION ENGINE HAVING LOCAL LEAKAGE DETECTION

#161
20100275880
2010-11-04

Fuel delivery system diagnostics after shut-down

#162
20100132668
2010-06-03

Method for determining a controlled variable for pressure control of a high-pressure accumulator in an injection system

#163
20100095747
2010-04-22

Method and device for testing the tightness of a fuel tank of an internal combustion engine

#164
20100082224
2010-04-01

Leak detection system

#165
20100070152
2010-03-18

Method and apparatus for detecting a continuous ingress of fuel into the lubricating oil of an internal combustion engine during cold starting

#166
20090271096
2009-10-29

Fuel supply device and fuel supply method for internal combustion engine

#167
20090260601
2009-10-22

Fuel delivery system diagnostics after shut-down

#168
20090250038
2009-10-08

FLOW SENSING FUEL SYSTEM

#169
20090199627
2009-08-13

Device and method for monitoring a fuel metering system

#170
20090164094
2009-06-25

System for monitoring injected fuel quantities

#171
20090139488
2009-06-04

Diagnostic system for high pressure fuel system

#172
20090107461
2009-04-30

Direct injection fuel system with reservoir

#173
20090093948
2009-04-09

Method for controlling an internal combustion engine of a motor vehicle

#174
20090088951
2009-04-02

Defective injection detection device and fuel injection system having the same

#175
20090070004
2009-03-12

Fuel injection controller

#176
20090025458
2009-01-29

Rate-based monitoring for an engine system

#177
20080302176
2008-12-11

Method for diagnosing the leakage of an injector and associated control device

#178
20080302175
2008-12-11

Method and apparatus for determining correct installation for gear-driven fuel pump on a fuel injected IC engine

#179
20080302174
2008-12-11

Method and apparatus for testing a gear-driven fuel pump on a fuel injected IC engine

#180
20080264157
2008-10-30

Method and device for checking for leakage in a fuel injection valve of an internal combustion engine

#181
20080264155
2008-10-30

Method and device for monitoring a fuel supplying device of an internal combustion engine

#182
20080249699
2008-10-09

Method and device for monitoring a fuel injection device for an internal combustion engine

#183
20080236548
2008-10-02

Control device for high-pressure fuel system

#184
20080228342
2008-09-18

Vehicle diagnosis device and method

#185
20080189026
2008-08-07

Intake air control of an internal combustion engine

#186
20080189007
2008-08-07

Determination of abnormality of an intake air system of an internal-combustion engine

#187
20080109144
2008-05-08

Method for monitoring the operability of a fuel injection system

#188
20080041331
2008-02-21

System for dynamically detecting fuel leakage

#189
20080004786
2008-01-03

Procedure to operate a fuel system of an internal combustion engine

#190
20070289577
2007-12-20

Control apparatus for vehicle

#191
20070250288
2007-10-25

Method for operating an internal combustion engine, and a control device therefor

#192
20070124183
2007-05-31

Method for identifying anomalous behaviour of a dynamic system

#193
20070079792
2007-04-12

Method for determining a fuel pressure related fault and operating an internal combustion engine based on the fault

#194
20070017483
2007-01-25

Control apparatus for internal combustion engine

#195
20060207567
2006-09-21

Control apparatus for vehicle

#196
20060116810
2006-06-01

Method for operating an injection valve of an internal combustion engine

#197
20060037586
2006-02-23

Method for adjusting the duration of fuel injection through an injection valve

#198
20060037387
2006-02-23

Method and device for detecting the entry of fuel into the lubricating oil of an internal combustion engine

#199
20050234631
2005-10-20

Electronic control unit for vehicles

#200
20050015195
2005-01-20

Method for monitoring an internal combustion engine

#201
20050005880
2005-01-13

System for modifying fuel pressure in a high-pressure fuel injection system for fuel system leakage testing

#202
17805390
2023-09-12

Methods and systems for a pressureless fuel tank

#203
17162746
2022-01-18

Dual path purge system for a turbocharged engine

#204
17119795
2022-05-17

Method and system for fuel system diagnostics

#205
17106696
2022-03-01

Oil dilution diagnostic test

#206
17098085
2022-03-15

Methods and systems for diagnosing fuel system degradation

#207
17074854
2022-03-22

Diagnostic method for pressure-less fuel tank

#208
15722957
2018-11-27

Systems and methods for an evaporative emissions system and fuel system having a single delta pressure sensor