ClassID:

166966

G01M3/025 - CPC Classification

Classification description:

Investigating fluid-tightness of structures by using fluid or vacuum Details with respect to the testing of engines or engine parts

Recent Application in this class:
#1
20250231075
2025-07-17

SPRING SYSTEM FOR LEAK TEST STATION

#2
20250216285
2025-07-03

COMPACT EVAPORATIVE EMISSIONS LEAK CHECK MODULE

#3
20250155312
2025-05-15

ADDITIVE INFLATABLE LEAK CHECK BLADDER

#4
20240079616
2024-03-07

SYSTEMS AND METHODS FOR HYDROGEN LEAK DETECTION

#5
20230313762
2023-10-05

Leak detection module entropy method for evaporative emissions system

#6
20230279818
2023-09-07

Leak testing apparatus

#7
20230082759
2023-03-16

Oil filter-leak pressure-test station

#8
20230049836
2023-02-16

Internal leak detector

#9
20230030351
2023-02-02

Systems and methods for make-up air blocking valve with a restrictive poppet orifice

#10
20230016408
2023-01-19

DETECTING A FUEL LEAK IN AN ENGINE FUEL SYSTEM

#11
20230008799
2023-01-12

Leak detection system

#12
20230008702
2023-01-12

DEVICE AND METHOD FOR DETECTING LEAKAGE OF A HYDRAULIC CYLINDER

#13
20220357249
2022-11-10

Systems and methods for efficient detection of hazardous fuel gas leakage within a gas turbine compartment

#14
20220299395
2022-09-22

Leak detection system and method

#15
20220276113
2022-09-01

Leak diagnosis method and leak diagnosis device for blowby gas treatment device of internal combustion engine

#16
20220213803
2022-07-07

Detection device for turbine blade of aircraft engine

#17
20220146357
2022-05-12

Leak check strategies avoiding high vapor generation conditions

#18
20210348981
2021-11-11

Portable tester for a leakage rate of a cylinder in an automobile engine

#19
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

#20
20210270213
2021-09-02

Leakage Diagnosis Device for Fuel Vapor Processing Apparatus

#21
20210190627
2021-06-24

Dynamic seal test device for cryogenic fluid medium

#22
20210181055
2021-06-17

Combustion chamber leak detection kit in vehicle engines

#23
20210164858
2021-06-03

SYSTEMS AND METHODS FOR LEAK TESTING A COMPONENT

#24
20210140843
2021-05-13

Device and method for detecting cylinder leaks

#25
20210102859
2021-04-08

Method and assembly for inspecting engine component

#26
20200400050
2020-12-24

Crankcase ventilation system and diagnostic method

#27
20200300723
2020-09-24

Tool for use in providing a seal on a tube end to allow a pressure test

#28
20200292408
2020-09-17

Device for detecting an oil leak

#29
20200284684
2020-09-10

Safety procedure for valve replacement and leak detection on a tank car

#30
20200284683
2020-09-10

Testing mechanism for valve replacement and leak detection on a tank car

#31
20200262578
2020-08-20

System and method for detecting a fuel leak in an aircraft

#32
20200232870
2020-07-23

Method and system for fuel system leak detection

#33
20200158590
2020-05-21

Method for diagnosing a supercharged internal combustion engine for leakage in a portion of the intake air line

#34
20200158589
2020-05-21

Engine with valve device and test method

#35
20200104989
2020-04-02

Vehicle detection system and method

#36
20200049582
2020-02-13

Safety procedure and testing mechanism for valve replacement and leak detection on a tank car

#37
20200047734
2020-02-13

Method for detecting a leakage during operation of a braking system for a vehicle and braking system for a vehicle

#38
20200032746
2020-01-30

Methods and systems for cloud-based emissions testing

#39
20190376869
2019-12-12

Methods and systems for fluid leak determination

#40
20190154032
2019-05-23

Real time machine learning based predictive and preventive maintenance of vacuum pump

#41
20190145846
2019-05-16

Oil filter-leak pressure-test station

#42
20190136706
2019-05-09

Wastegate sealing jig

#43
20190094110
2019-03-28

Leak detection method for open emission analysis, and open emission analysis device

#44
20190094100
2019-03-28

Gas turbomachine leak detection system and method

#45
20190063375
2019-02-28

Leakage prevention systems and methods

#46
20190048820
2019-02-14

SYSTEMS FOR FUEL DELIVERY

#47
20190041292
2019-02-07

Fuel vapor processing device

#48
20190011323
2019-01-10

Method and device for leak testing an internal combustion engine

#49
20180348082
2018-12-06

Horizontal high speed testing device for spiral seal of horizontal cone bit bearing

#50
20180328253
2018-11-15

Exhaust system integrity tester

#51
20180252610
2018-09-06

Cleaning cycle for capless refueling neck

#52
20180252609
2018-09-06

Method for detecting an unsealed location in a heat recovery system of an internal combustion engine

#53
20180238764
2018-08-23

Battery pack for electric vehicles and method of detecting cooling water leakage in battery pack for electric vehicles

#54
20180202577
2018-07-19

Optical microphone to diagnose actuators

#55
20180172543
2018-06-21

Leak detection tool

#56
20180165896
2018-06-14

Method of diagnosing oil leak of engine clutch in hybrid electric vehicle

#57
20180149551
2018-05-31

Oil leakage detection device

#58
20180136075
2018-05-17

Inspection smoke machine

#59
20180136073
2018-05-17

Inspection smoke machine

#60
20180087998
2018-03-29

Fluid leak measurement test device and methods

#61
20180058972
2018-03-01

Hazgas system with acoustic wave sensors

#62
20180045143
2018-02-15

Methods and systems for evaporative emissions control

#63
20180017462
2018-01-18

Fluid measuring device and measuring head device for moisture detection, in particular in containers for fluid-sensitive electrical and/or electronic components in road vehicles

#64
20180017022
2018-01-18

Blockage detection system and blockage detection method

#65
20170363055
2017-12-21

SYSTEMS AND METHODS FOR EVAP LEAK TESTING

#66
20170350351
2017-12-07

Systems and methods for vehicle evaporative emissions system diagnostics

#67
20170342929
2017-11-30

Safety device for an electronic board capable of identifying a leakage of aqueous urea solution

#68
20170336280
2017-11-23

Turbine inspection stopper

#69
20170307463
2017-10-26

Oil filter-leak pressure-test station

#70
20170260930
2017-09-14

Leakage Diagnosis In A Fuel Tank System

#71
20170219456
2017-08-03

Method and apparatus for leak detection

#72
20170218886
2017-08-03

Purge valve leak diagnostic robustness improvements for small turbocharged engines

#73
20170205306
2017-07-20

Systems and methods for fuel leak detection

#74
20170146426
2017-05-25

Fuel tank system

#75
20170130607
2017-05-11

Gas accumulation detection and ventilation in a gas turbine enclosure

#76
20170067578
2017-03-09

DETECTION OF HIGH STAGE VALVE LEAKAGE BY PRESSURE LOCKUP

#77
20170067414
2017-03-09

Systems and methods for evaporative emissions testing

#78
20170059443
2017-03-02

Air-tightness test equipment for turbine reduction gearbox

#79
20170058809
2017-03-02

METHOD AND DEVICE FOR DIAGNOSING LEAK OF FUEL SYSTEM IN VEHICLE

#80
20170052087
2017-02-23

Method for detecting leaks in a fuel circuit of a gas turbine fuel supply system

#81
20170030281
2017-02-02

Systems for fuel delivery

#82
20170016795
2017-01-19

Systems and methods for engine-off natural vacuum leak testing with fuel enablement compensation

#83
20170016794
2017-01-19

Methods and system for an evaporative emissions system leak test using an external pressure source

#84
20160363503
2016-12-15

Leak test method and leak test apparatus

#85
20160313171
2016-10-27

Methods and systems for fuel level indicators in a saddle fuel tank

#86
20160282217
2016-09-29

Safety procedure and testing mechanism for valve replacement and leak detection on a tank car

#87
20160266000
2016-09-15

Automobile turbocharger examination device

#88
20160252420
2016-09-01

METHOD AND ASSEMBLY FOR INSPECTING ENGINE COMPONENT

#89
20160245279
2016-08-25

REAL TIME MACHINE LEARNING BASED PREDICTIVE AND PREVENTIVE MAINTENANCE OF VACUUM PUMP

#90
20160238480
2016-08-18

SEAL VACUUM CHECK TOOL

#91
20160230687
2016-08-11

Abnormality diagnosis apparatus and abnormality diagnosis method

#92
20160209292
2016-07-21

Systems and methods for evaporative emissions leak testing

#93
20160195449
2016-07-07

Method for detecting a leak in a crankcase breather

#94
20160178471
2016-06-23

Method for detecting a fuel leak in a fuel system of an aircraft having at least two engines

#95
20160097694
2016-04-07

Determining cylinder health in a reciprocating piston engine

#96
20160084728
2016-03-24

Turbine leak detection system

#97
20160082832
2016-03-24

System and methods for determining fuel fill level and diagnosing fill level indicator

#98
20160061685
2016-03-03

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

#99
20160041061
2016-02-11

Engine ventilation system diagnostics using pressure measurement

#100
20160025589
2016-01-28

Evaporative emissions testing based on historical and forecast weather data

#101
20160025588
2016-01-28

Systems and methods for evaporative emissions testing

#102
20160011070
2016-01-14

Method for checking the leak tightness of a combustion engine having an exhaust gas turbocharger, and exhaust gas turbocharger

#103
20160010537
2016-01-14

Systems and methods for diagnosing an engine

#104
20150355047
2015-12-10

Automatic pressure-adjusting leak detecting apparatus and method

#105
20150337679
2015-11-26

Method for detecting a fluid leak in a turbomachine and system for distributing a fluid

#106
20150330862
2015-11-19

APPARATUS AND METHOD FOR DIESEL ENGINE CHECK TOOL

#107
20150330861
2015-11-19

Current based air filter diagnostics and monitoring

#108
20150328568
2015-11-19

System for monitoring and indicating filter life

#109
20150308918
2015-10-29

Leak testing method

#110
20150276552
2015-10-01

Exhaust system integrity tester

#111
20150219522
2015-08-06

Correlation based fuel tank leak detection

#112
20150211952
2015-07-30

Cleaning cycle for capless refueling neck

#113
20150198498
2015-07-16

Hydrostatic test device and hydrostatic test method for high pressure turbine

#114
20150153244
2015-06-04

Method and device for checking the hydraulic leak-tightness in an exhaust gas aftertreatment system for a motor vehicle

#115
20150040878
2015-02-12

Failure detection device for blow-by gas recirculation apparatus of engine

#116
20150040645
2015-02-12

Device and method for diagnosing evaporated fuel processing device

#117
20150007639
2015-01-08

Method of testing a gas shut-down valve and a system for exercising the method

#118
20140338427
2014-11-20

Leak test method and leak test apparatus

#119
20140260549
2014-09-18

Fuel system leak detection using passive valves

#120
20140250981
2014-09-11

SEAL TEST FIXTURE FOR A GAS TURBINE FUEL NOZZLE

#121
20140157873
2014-06-12

Testing apparatus for an outer housing of a pump and method for the testing of an outer housing of a pump

#122
20140144221
2014-05-29

Apparatus, system, and method for testing a turbocharger

#123
20140102179
2014-04-17

Turbine leak detection system

#124
20140020763
2014-01-23

Systems and methods for mitigating battery damage caused by coolant leaks

#125
20140013944
2014-01-16

Device for selectively regenerating or performing tank leakage diagnosis of a tank ventilation system

#126
20130338899
2013-12-19

Systems and methods for diagnosing an engine

#127
20130312494
2013-11-28

Liquid submerged portion fuel leakage diagnostic apparatus

#128
20130312493
2013-11-28

Engine ventilation system diagnostics using pressure measurement

#129
20130298643
2013-11-14

Evaporative emissions leak tester and leak test method

#130
20130283898
2013-10-31

Method and system for diagnosing a vacuum system

#131
20130219996
2013-08-29

Method of rejecting a defective unit dose pouch from a manufacturing line

#132
20130180323
2013-07-18

Method for monitoring an SCR system

#133
20130145825
2013-06-13

Method for leak-testing and device for carrying out the method

#134
20130074584
2013-03-28

Flexible leak test apparatus and method

#135
20130000380
2013-01-03

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

#136
20120323433
2012-12-20

Method and system for diagnosing a vacuum system

#137
20120318047
2012-12-20

Method and system for determining vacuum leaks

#138
20120279290
2012-11-08

Apparatus, system, and method for testing a turbocharger

#139
20120279282
2012-11-08

Device and method to provide a pressure/vacuum test of a vehicle cylinder's sealing ability without a head on the engine

#140
20120240664
2012-09-27

Fuel vapor leak detection device

#141
20120239315
2012-09-20

VALVE FAULT TEST SYSTEM

#142
20120215399
2012-08-23

System and method for performing evaporative leak diagnostics in a vehicle

#143
20120210773
2012-08-23

Method of testing air tightness of sealed lash adjuster

#144
20120079873
2012-04-05

Large leak diagnostic tool for a sealed fuel system in a vehicle

#145
20110307160
2011-12-15

System for monitoring and indicating filter life

#146
20110283777
2011-11-24

PORTABLE AUTOMOTIVE LEAK DETECTOR

#147
20110156921
2011-06-30

Method for detection of a fluid leak related to a piston machine

#148
20110072888
2011-03-31

METHOD FOR LEAK DETECTION IN DOSING SYSTEM

#149
20110067773
2011-03-24

Dosing manifold assembly

#150
20100326176
2010-12-30

Method and apparatus for testing the piston of an injection pump

#151
20100288883
2010-11-18

Method for detecting a fuel leakage in an aircraft engine and system for carrying out said method

#152
20100095746
2010-04-22

Engine leak detector and leak detection method

#153
20100005912
2010-01-14

Method and test fixture for evaluating a lubrication containment system

#154
20100005862
2010-01-14

Sensor for detecting surface cracks in a component or structure

#155
20090265074
2009-10-22

Method and device for detecting a leak in an exhaust-gas section of a combustion engine

#156
20090241642
2009-10-01

Method for Determination of a Leakage on a Piston Machine

#157
20090165535
2009-07-02

LEAK LOCALIZATION IN A CAVITATED BODY

#158
20090019922
2009-01-22

Method and apparatus for oil leak testing

#159
20080264157
2008-10-30

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

#160
20070240434
2007-10-18

Cooling system testing apparatus and methods

#161
20070157714
2007-07-12

Engine oil leak test system and method

#162
20070151329
2007-07-05

Engine oil leak test method with EGR valve leak offset

#163
20060218993
2006-10-05

Cylinder leak detector

#164
20060185423
2006-08-24

Leak detection system for a vehicle fuel tank

#165
20060179921
2006-08-17

Method, apparatus, and computer program for measuring the leakage from fuel injection systems for internal combustion engine

#166
20060176058
2006-08-10

Device and method for testing the seal tightness of a fuel tank system of a motor vehicle

#167
20060112761
2006-06-01

Vehicle maintenance identification apparatus

#168
20060075804
2006-04-13

Engine water cooling system leaking tester

#169
20050263109
2005-12-01

SYSTEMS AND METHODS FOR MONITORING THE STATUS OF PRESSURIZED SYSTEMS

#170
20050248356
2005-11-10

Sensing film material

#171
20050229686
2005-10-20

Detection of oil in turbine engine bleed air

#172
20050210968
2005-09-29

Vehicle maintenance identification apparatus

#173
20050204802
2005-09-22

Leakage drain

#174
20050161029
2005-07-28

Leakage detecting apparatus for an exhaust gas re-circulating system of an engine

#175
20050125171
2005-06-09

Method and device for detecting leaks in reciprocating machinery

#176
20050044931
2005-03-03

Air transfer apparatus and control method of air transfer apparatus

#177
20050044930
2005-03-03

Leak detector

#178
17454951
2022-10-25

Methods and systems for determining integrity of fuel tank pressure transducer

#179
15597545
2019-04-16

Aircraft fuel system test unit