by measuring fluctuations of starter motor current or of battery voltage

Industry

CPC
G01L23/085

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GPHYSICS G01Measuring instruments G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE G01L23/00Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid

Current Industry

G01L23/085by measuring fluctuations of starter motor current or of battery voltage

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Determining engine cylinder contribution from indexed engine data
- Patent number 7,286,927
- Issue date Oct 23, 2007
- Snap-on Incorporated
- Robert D. DeCarlo
- G01 - MEASURING TESTING
Information Patent Grant
Determining engine cylinder contribution from indexed engine data
- Patent number 7,171,302
- Issue date Jan 30, 2007
- Snap-on Incorporated
- Robert D. DeCarlo
- G01 - MEASURING TESTING
Information Patent Grant
Decoding an alternator output signal
- Patent number 7,162,397
- Issue date Jan 9, 2007
- Snap-on Incorporated
- Robert D. DeCarlo
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus and method for measuring relative compression
- Patent number 5,663,493
- Issue date Sep 2, 1997
- Fluke Corporation
- Johannes C. M. Gerbert
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for testing internal combustion engines
- Patent number 4,809,540
- Issue date Mar 7, 1989
- AVL Gesellschaft fur Verbrennungskraftmaschinen und Messtechnik mbH., Prof.Dr...
- Gerald Lackner
- G01 - MEASURING TESTING
Information Patent Grant
Internal combustion engine combustion chamber pressure sensing appa...
- Patent number 4,491,110
- Issue date Jan 1, 1985
- Robert Bosch GmbH
- Rainer Bone
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Apparatus for measurement and display of relative compression by cy...
- Patent number 4,309,900
- Issue date Jan 12, 1982
- Sun Electric Corporation
- Keith A. Kreft
- G01 - MEASURING TESTING
Information Patent Grant
Method for determining a measurement value proportional to the comp...
- Patent number 4,144,746
- Issue date Mar 20, 1979
- Siemens Aktiengesellschaft
- Albert Maringer
- G01 - MEASURING TESTING
Information Patent Grant
Compression test using battery voltage waveform during cranking
- Patent number 4,126,037
- Issue date Nov 21, 1978
- RCA Corporation
- Richard E. Hanson
- G01 - MEASURING TESTING
Information Patent Grant
Testing compression in engines from starter motor current waveform
- Patent number 4,062,232
- Issue date Dec 13, 1977
- RCA Corporation
- Eldon Marvin Sutphin
- G01 - MEASURING TESTING
Information Patent Grant
Relative compression of an internal combustion engine
- Patent number 4,050,296
- Issue date Sep 27, 1977
- United Technologies Corporation
- Richard S. Benedict
- G01 - MEASURING TESTING
Information Patent Grant
Compression testing apparatus
- Patent number 4,027,532
- Issue date Jun 7, 1977
- Sun Electric Corporation
- Gerald C. Trussell
- G01 - MEASURING TESTING
Information Patent Grant
Measurement of the synchronization of a combustion engine
- Patent number 3,984,760
- Issue date Oct 5, 1976
- Siemens Aktiengesellschaft
- Albert Maringer
- G01 - MEASURING TESTING
Information Patent Grant
Determining engine compression from starter motor current
- Patent number 3,952,586
- Issue date Apr 27, 1976
- RCA Corporation
- Richard Eric Hanson
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for measuring compression pressures in internal-combustio...
- Patent number 3,943,759
- Issue date Mar 16, 1976
- Toyota Jidosha Hanbai Kabushiki Kaisha
- Takayuki Kato
- G01 - MEASURING TESTING
Information Patent Grant
Engine compression testing
- Patent number 3,938,378
- Issue date Feb 17, 1976
- The United States of America as represented by the Secretary of the Army
- Howard E. Fineman
- G01 - MEASURING TESTING
Information Patent Grant
3839906
- Patent number 3,839,906
- Issue date Oct 8, 1974
- G01 - MEASURING TESTING
Information Patent Grant
3823606
- Patent number 3,823,606
- Issue date Jul 16, 1974
- G01 - MEASURING TESTING
Information Patent Grant
3765233
- Patent number 3,765,233
- Issue date Oct 16, 1973
- G01 - MEASURING TESTING
Information Patent Grant
3713331
- Patent number 3,713,331
- Issue date Jan 30, 1973
- G01 - MEASURING TESTING
Information Patent Grant
3667289
- Patent number 3,667,289
- Issue date Jun 6, 1972
- G01 - MEASURING TESTING
Information Patent Grant
3421367
- Patent number 3,421,367
- Issue date Jan 14, 1969
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
2653472
- Patent number 2,653,472
- Issue date Sep 29, 1953
- G01 - MEASURING TESTING
Information Patent Grant
2560734
- Patent number 2,560,734
- Issue date Jul 17, 1951
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents

Information Patent Application
Determining engine cylinder contribution from indexed engine data
- Publication number 20070032939
- Publication date Feb 8, 2007
- SNAP-ON INCORPORATED
- Robert D. DeCarlo
- G01 - MEASURING TESTING
Information Patent Application
Decoding an alternator output signal
- Publication number 20060287785
- Publication date Dec 21, 2006
- SNAP-ON INCORPORATED
- Robert D. DeCarlo
- G01 - MEASURING TESTING
Information Patent Application
Determining engine cylinder contribution from indexed engine data
- Publication number 20050251321
- Publication date Nov 10, 2005
- Robert D. DeCarlo
- G01 - MEASURING TESTING
Information Patent Application
Decoding an alternator output signal
- Publication number 20050251369
- Publication date Nov 10, 2005
- Robert D. DeCarlo
- G01 - MEASURING TESTING

by measuring fluctuations of starter motor current or of battery voltage

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Determining engine cylinder contribution from indexed engine data

Determining engine cylinder contribution from indexed engine data

Decoding an alternator output signal

Apparatus and method for measuring relative compression

Method and apparatus for testing internal combustion engines

Internal combustion engine combustion chamber pressure sensing appa...

Apparatus for measurement and display of relative compression by cy...

Method for determining a measurement value proportional to the comp...

Compression test using battery voltage waveform during cranking

Testing compression in engines from starter motor current waveform

Relative compression of an internal combustion engine

Compression testing apparatus

Measurement of the synchronization of a combustion engine

Determining engine compression from starter motor current

Apparatus for measuring compression pressures in internal-combustio...

Engine compression testing

3839906

3823606

3765233

3713331

3667289

3421367

2653472

2560734

Patents Applicationslast 30 patents

Determining engine cylinder contribution from indexed engine data

Decoding an alternator output signal

Determining engine cylinder contribution from indexed engine data

Decoding an alternator output signal