ClassID:

167158

G01M15/09 - CPC Classification

Classification description:

Testing of engines; Testing internal-combustion engines by monitoring pressure in fluid ducts, e.g. in lubrication or cooling parts

Recent Application in this class:
#1
20260016373
2026-01-15

ABNORMALITY DIAGNOSIS DEVICE FOR INTERNAL COMBUSTION ENGINE

#2
20250334981
2025-10-30

ELECTRONIC CONTROL OF FLUID OPERATIONS FOR MACHINES

#3
20250334484
2025-10-30

SYSTEM AND METHOD FOR DETECTING FUEL LEAKS IN HYDROGEN COMBUSTION ENGINES

#4
20240419194
2024-12-19

ELECTRONIC CONTROL OF FLUID OPERATIONS FOR MACHINES

#5
20240353292
2024-10-24

SYSTEM AND METHOD FOR DIAGNOSING A CRANKCASE VENTILATION SYSTEM OF AN INTERNAL COMBUSTION ENGINE

#6
20240219263
2024-07-04

METHOD OF DETERMINING A HYDRAULIC TIMING OF A FUEL INJECTOR

#7
20230384183
2023-11-30

Engine Pre Turbine Pressure Monitoring System

#8
20230168153
2023-06-01

Engine piston and fatigue testing apparatus for engine piston

#9
20230106806
2023-04-06

Methods and systems for diagnosing engine cylinders

#10
20230072972
2023-03-09

Method and device for regulating the pressure of the combustion gas and/or exhaust gas of a machine

#11
20220326212
2022-10-13

Resonant sensor probe assembly

#12
20220243665
2022-08-04

Gas turbine engine with heat exchanger diagnostics

#13
20220163010
2022-05-26

Fuel pump health assessment system

#14
20220113746
2022-04-14

Electronic control of fluid operations for machines

#15
20210270798
2021-09-02

Resonant sensor probe assembly

#16
20210231529
2021-07-29

Oil pressure switch, apparatus for diagnosing piston cooling oil jet, and method of controlling the same

#17
20210180485
2021-06-17

Device and method for diagnosing positive crankcase ventilation breather line

#18
20200309051
2020-10-01

Method and system for variable displacement engines

#19
20200295560
2020-09-17

Device to protect alternator and batteries on diesel engines

#20
20200217263
2020-07-09

Agricultural work vehicle and system and method for monitoring state of agricultural work vehicle

#21
20200200787
2020-06-25

System and method for engine speed measurement

#22
20200173383
2020-06-04

Evaporation gas active purge system and active purge method

#23
20200103926
2020-04-02

Electronic control of fluid operations for machines

#24
20200056555
2020-02-20

Engine misfire mitigation

#25
20200049115
2020-02-13

Relief valve determination device for high-pressure fuel supply system

#26
20190360895
2019-11-28

Measuring device comprising at least one fluid channel for guiding a measurement fluid

#27
20190353558
2019-11-21

Device and method for cold testing engine component operation

#28
20190338719
2019-11-07

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

#29
20190323924
2019-10-24

TESTING DEVICE FOR VEHICLES

#30
20190285512
2019-09-19

Engine health diagnosis and fault isolation with cranking test

#31
20190226366
2019-07-25

Control device for internal combustion engine

#32
20190204291
2019-07-04

Vehicle system with sensor probe assembly for monitoring oil health

#33
20190195735
2019-06-27

Oil pressure switch, apparatus for diagnosing piston cooling oil jet, and method of controlling the same

#34
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

#35
20190145857
2019-05-16

Blockage detection device and blockage detection method

#36
20190145846
2019-05-16

Oil filter-leak pressure-test station

#37
20190072059
2019-03-07

Connection state determination device for breather pipe

#38
20190048819
2019-02-14

Mass-airflow measurement conversion apparatus for internal combustion engine carburetors

#39
20190018430
2019-01-17

Electronic control of fluid operations for machines

#40
20190011323
2019-01-10

Method and device for leak testing an internal combustion engine

#41
20180371971
2018-12-27

FAULT DETECTION DEVICE FOR INTERNAL COMBUSTION ENGINE

#42
20180292283
2018-10-11

Sensor element for recording at least one property of a fluid medium

#43
20180283990
2018-10-04

Device for conditioning the atmosphere in tests of alternative internal combustion engines, method and use of said device

#44
20180246010
2018-08-30

Methods for evaluating the lubrication of an apparatus which can be lubricated by means of a lubricant circuit

#45
20180245544
2018-08-30

Method for checking the tightness of a fuel supply system

#46
20180209872
2018-07-26

Pressure indicator for automotive radiator, senses a predefined pressure and flags off a permanent trigger

#47
20180156692
2018-06-07

Induction diagnostics for skip fire engines

#48
20180156086
2018-06-07

Systems for in situ monitoring of working fluids and working fluid systems

#49
20180080389
2018-03-22

Gas turbine engine with heat exchanger diagnostics

#50
20180017022
2018-01-18

Blockage detection system and blockage detection method

#51
20170335819
2017-11-23

Method and processing system of sensed ionization current data for real time estimate of combustion chamber pressure in a spark ignition engine

#52
20170328810
2017-11-16

Abnormality diagnosis device and abnormality diagnosis method for intake system of internal combustion engine

#53
20170307463
2017-10-26

Oil filter-leak pressure-test station

#54
20170299466
2017-10-19

Induction diagnostics for skip fire engines

#55
20170248093
2017-08-31

Method of continuously calculating trapped and scavenged air per cylinder

#56
20170218873
2017-08-03

Method and apparatus for detecting a malfunctioning rail pressure sensor

#57
20170218872
2017-08-03

Mass-airflow measurement conversion apparatus for internal combustion engine carburetors

#58
20170152776
2017-06-01

Method of real-time oil consumption detection

#59
20170074853
2017-03-16

MULTI-MODAL FLUID CONDITION SENSOR PLATFORM AND SYSTEM THEREFOR

#60
20170074200
2017-03-16

Data analyzer

#61
20160305358
2016-10-20

Fuel rail pressure sensor diagnostic techniques

#62
20160251987
2016-09-01

Method to control the sealing of a blow-by gas breather circuit of an internal combustion engine

#63
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

#64
20160161322
2016-06-09

Method and apparatus for furnishing a filtered air system state variable in a control unit of an internal combustion engine

#65
20160116371
2016-04-28

Induction diagnostics for skip fire engine

#66
20160069766
2016-03-10

DETERMINING INLET MANIFOLD PRESSURE OF ENGINE

#67
20160069304
2016-03-10

Evaporative system

#68
20160061685
2016-03-03

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

#69
20160018288
2016-01-21

System for detecting an air filter condition, in particular for combustion engine

#70
20160010584
2016-01-14

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

#71
20160010537
2016-01-14

Systems and methods for diagnosing an engine

#72
20150276551
2015-10-01

Testing unit for testing a multi-cylinder engine

#73
20150276550
2015-10-01

Mass-airflow measurement conversion apparatus for internal combustion engine carburetors

#74
20150184620
2015-07-02

Method and system for fuel vapor control

#75
20150159574
2015-06-11

Fuel rail pressure sensor diagnostic techniques

#76
20150149030
2015-05-28

Offset correction method for automobile oil pressure sensor

#77
20150082771
2015-03-26

System for detecting a leakage in an intake line of an internal combustion engine

#78
20150040878
2015-02-12

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

#79
20150032357
2015-01-29

Barometric pressure inference based on tire pressure

#80
20150001371
2015-01-01

Engine test device

#81
20140365071
2014-12-11

Turbocharged engine purge flow monitor diagnostic

#82
20140336956
2014-11-13

Method and processing system of sensed ionization current data for real time estimation of combustion chamber pressure in a spark ignition engine

#83
20140309794
2014-10-16

Electronic control of fluid operations for machines

#84
20140299110
2014-10-09

Method for diagnosing a tank ventilation system

#85
20140288768
2014-09-25

Operation data collection device for construction machines

#86
20140260651
2014-09-18

Fuel system pressure tester for motorcycles

#87
20140260575
2014-09-18

System and method for diagnosing flow through a purge valve based on a fuel system pressure sensor

#88
20140224220
2014-08-14

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

#89
20140224218
2014-08-14

System and method for adapting to a variable fuel delivery cutout delay in a fuel system of an internal combustion engine

#90
20140144221
2014-05-29

Apparatus, system, and method for testing a turbocharger

#91
20140060160
2014-03-06

Fuel system diagnostics

#92
20140019002
2014-01-16

System and method for performing evaporative leak diagnostics in a vehicle

#93
20140007663
2014-01-09

Method for functionally testing turbomachines, and test device therefor

#94
20130338899
2013-12-19

Systems and methods for diagnosing an engine

#95
20130333457
2013-12-19

Device and method for dynamic pressure loss and valve seal-tightness testing on a four stroke internal combustion engine

#96
20130298654
2013-11-14

Method for diagnosing a valve of a fluid supply line to a line of an air system of a combustion engine

#97
20130282230
2013-10-24

Turbo-charged engine purge flow monitor diagnostic

#98
20130192545
2013-08-01

Variable oil pump diagnostic

#99
20130180323
2013-07-18

Method for monitoring an SCR system

#100
20130042675
2013-02-21

Radiator grille tester

#101
20130013165
2013-01-10

Method and system for diagnosing cylinder valve activation/deactivation

#102
20130008234
2013-01-10

PRE-INSTALLATION TURBOCHARGER BENCH TEST

#103
20120279290
2012-11-08

Apparatus, system, and method for testing a turbocharger

#104
20120239272
2012-09-20

Method for testing the fuel quantity balance in a common rail system, corresponding engine control system, and corresponding diagnostic device

#105
20120215399
2012-08-23

System and method for performing evaporative leak diagnostics in a vehicle

#106
20120211087
2012-08-23

Method and system for fuel vapor control

#107
20120203447
2012-08-09

System and method for measuring injection processes in a combustion engine

#108
20120173076
2012-07-05

SYSTEM AND METHOD FOR DIAGNOSING A TURBOCHARGER

#109
20120143459
2012-06-07

Low pressure EGR system and method for determining intake air leakage therethrough

#110
20120046886
2012-02-23

Mass-airflow measurement conversion apparatus for internal combustion engine carburetors

#111
20110192220
2011-08-11

Restricted filter diagnostic system and method

#112
20110174066
2011-07-21

Non-intrusive EGR monitor for a hybrid electric vehicle

#113
20110153146
2011-06-23

METHOD FOR ON BOARD DIAGNOSTICS AND SYSTEM FOR ON BOARD DIAGNOSTICS

#114
20100332108
2010-12-30

FUEL VAPOR PRESSURE MEASURING DEVICE

#115
20100175463
2010-07-15

Variable displacement engine diagnostics

#116
20100175462
2010-07-15

Variable displacement engine diagnostics

#117
20100154523
2010-06-24

Throttle upstream pressure estimating apparatus and cylinder charged air quantity calculating apparatus for internal combustion engine

#118
20100126260
2010-05-27

Manifold pressure determination device

#119
20100050754
2010-03-04

Method and system for indicating a fault associated with a non-combustion chamber of an engine

#120
20100011849
2010-01-21

Method of determining ambient pressure for fuel injection

#121
20100004845
2010-01-07

Self tuning cylinder pressure based heat release computation

#122
20090283068
2009-11-19

FUEL FILTER ASSEMBLY WITH PRESSURE SENDING UNIT

#123
20090277257
2009-11-12

Sensor for an engine manifold with shielded sensing component

#124
20090241901
2009-10-01

In-line electro-mechanical modulating device to modulate fuel flow in fuel rails to reduce noise

#125
20090198439
2009-08-06

Driving system, control method of driving system, and vehicle equipped with driving system

#126
20090145212
2009-06-11

Sensor with quick connector

#127
20090143963
2009-06-04

Diagnostic of hydraulically switchable engine mechanisms

#128
20090139317
2009-06-04

Detecting coolant flow reduction for a marine engine system

#129
20090107771
2009-04-30

Oil consumption monitoring for aircraft engine

#130
20090049898
2009-02-26

Diagnostic systems and methods for the high pressure side of fuel systems in common fuel rail engines

#131
20090019938
2009-01-22

Pressure diagnostic for rotary equipment

#132
20080319600
2008-12-25

Intake air temperature rationality diagnostic

#133
20080314132
2008-12-25

Throttle upstream pressure estimating apparatus and cylinder charged air quantity calculating apparatus for internal combustion engine

#134
20080306648
2008-12-11

Abnormality diagnosis system and control system for internal combustion engine

#135
20080282784
2008-11-20

Method and a system for detection of an engine fault

#136
20080236266
2008-10-02

Method of diagnosing turbochargers for internal combustion engines

#137
20080228374
2008-09-18

Fuel injection device and adjustment method thereof

#138
20080223123
2008-09-18

Air filter restriction monitoring without pre-throttle pressure sensors

#139
20080208404
2008-08-28

Monitoring apparatus and method

#140
20080189007
2008-08-07

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

#141
20070295067
2007-12-27

Method and system for transient airflow compensation in an internal combustion engine

#142
20070044547
2007-03-01

Acute angle pressure sensor probe and method

#143
20060179926
2006-08-17

Method and apparatus for diagnosing failure of an atmospheric pressure sensor in an engine control system

#144
20060101904
2006-05-18

Fuel injector system diagnostic system

#145
20050216178
2005-09-29

Measuring arrangement and method to determine at intervals the usability potential of at least one operational fluid in an engine

#146
20050204805
2005-09-22

Diagnostic apparatus for variable valve control system

#147
20050193810
2005-09-08

Method and system of determining life of turbocharger

#148
20050087004
2005-04-28

Fuel injection system diagnostic system

#149
15438866
2018-01-30

Digital twin system for a cooling system