| Patents for G01M 15 - Testing of engines (13,067) | 
|---|
| 11/01/1977 | US4055993 Sub-cyclic measurement of speed of an internal combustion engine | 
| 10/25/1977 | US4055079 Cylinder firing indicator | 
| 10/04/1977 | US4052663 Timing system for measuring angle of advance of fuel injection | 
| 09/27/1977 | US4050306 Method and apparatus for measuring pressures | 
| 09/27/1977 | US4050297 Measuring electrical parameters of an internal combustion engine during cranking | 
| 09/13/1977 | US4048497 Method of measuring the oil consumption of internal combustion engines | 
| 09/06/1977 | US4046004 Diesel Engine diagnosing device | 
| 09/06/1977 | US4046003 Engine turbocharger diagnostics | 
| 08/23/1977 | US4044236 Method and apparatus for controlling the operation of an internal combustion engine | 
| 08/23/1977 | US4044235 Method and apparatus for determining smooth running operation in an internal combustion engine | 
| 08/23/1977 | US4044234 Process and apparatus for controlling engine operation near the lean-running limit | 
| 08/23/1977 | US4043189 Engine, cylinder identification (CID) transducer | 
| 08/09/1977 | US4040294 Apparatus for detecting misfire in multicylinder internal combustion engine | 
| 08/02/1977 | US4039931 System to sense a marker on a rotating body | 
| 07/19/1977 | US4036050 Engine monitoring apparatus | 
| 06/28/1977 | US4031747 Misfire monitor for engine analysis having automatic rescaling | 
| 06/21/1977 | US4030350 Apparatus for simulating variable air pressures | 
| 06/21/1977 | US4030349 Engine analysis apparatus | 
| 05/17/1977 | US4024458 Electrical signal generating system | 
| 05/17/1977 | US4023549 Exhaust temperature monitoring system | 
| 05/17/1977 | US4023403 Method and apparatus for timing diesel engines | 
| 04/12/1977 | US4016754 Testing device for wheeled automotive vehicles | 
| 04/12/1977 | US4016753 Sub-cyclic speed and cyclic time measurements for internal combustion engine horsepower indication | 
| 04/05/1977 | US4015467 Sub-cyclic measurements of speed and time for internal combustion engine horsepower indication | 
| 04/05/1977 | US4015466 Determination of number of teeth on an internal combustion engine flywheel | 
| 01/11/1977 | US4002155 Engine and engine spark timing control with knock limiting etc. | 
| 01/11/1977 | US4002065 Steam turbine valve positioning system having throttle valve test capability | 
| 12/28/1976 | US3999425 Method and apparatus for preforming exhaust gas emission tests with vehicle engines | 
| 12/28/1976 | US3999383 Engine misfire protection system | 
| 12/21/1976 | US3998095 Method and apparatus for quickly evaluating engine exhaust gas emissions | 
| 12/14/1976 | US3996793 Pressure control test apparatus | 
| 11/30/1976 | US3994160 Acceleration burst test apparatus and method for internal combustion engines | 
| 11/16/1976 | US3992627 Diagnostic apparatus | 
| 11/09/1976 | US3990303 Ignition analyzer for use with electronic ignition systems | 
| 11/09/1976 | US3990302 Automotive ignition analyzer with cylinder of interest display | 
| 11/02/1976 | US3988925 Valve lash adjusting tool and method therefor | 
| 10/12/1976 | US3986009 Power contribution measurement system for internal combustion engines | 
| 10/05/1976 | US3983754 Apparatus for detecting misfires in multi-cylinder type internal combustion engines | 
| 09/28/1976 | US3983375 Tiltester | 
| 09/07/1976 | US3979598 Dual range adjustable delay circuit | 
| 09/07/1976 | US3978720 Combustion detector for internal combustion engines | 
| 09/07/1976 | US3978719 Tachometer without physical connection to internal combustion engine | 
| 08/31/1976 | US3977240 Engine test system | 
| 08/31/1976 | US3977239 Engine diagnosis from frequency components in exhaust | 
| 08/24/1976 | US3975953 Method and apparatus for reproducing operating conditions in induced flow devices | 
| 08/10/1976 | US3973848 Automatic gas analysis and purging system | 
| 08/03/1976 | US3972230 Detecting malfunction in cylinders of internal combustion engines | 
| 06/29/1976 | US3965677 Misfire detecting apparatus for an internal combustion engine | 
| 06/22/1976 | US3964301 Engine brake horsepower test without external load | 
| 06/15/1976 | US3962866 Internal combustion exhaust catalytic reactor monitoring system | 
| 06/01/1976 | US3961239 Signal conditioning circuit for vehicle diagnostic system | 
| 05/18/1976 | US3958122 Exhaust gas analyzer having pressure and temperature compensation | 
| 05/18/1976 | US3957372 Vehicle exhaust gas analysis system | 
| 05/04/1976 | US3955135 Vehicle rpm and dwell measurement system | 
| 04/20/1976 | US3950981 Automatic system for suppressing the ground noise of apparatus for measuring the knocking | 
| 04/06/1976 | US3948228 Exhaust gas sensor operational detection system | 
| 03/16/1976 | US3944733 Signal recognition apparatus | 
| 03/09/1976 | US3942366 Fuel injection arrangement | 
| 03/09/1976 | US3942365 Power test means and method for internal combustion engines | 
| 03/09/1976 | US3942363 Drive-dynamometer system | 
| 03/02/1976 | US3941205 Method and means for controlling the air pressure in a sound-proofed hangar for testing jet engines | 
| 03/02/1976 | US3940977 Signal disabling engine diagnosing apparatus | 
| 02/24/1976 | US3939711 Engine misfire detection system | 
| 02/17/1976 | US3938377 Method and apparatus for production hot testing of engines under load | 
| 02/17/1976 | US3938376 Volume signal generator for thermodynamic cycle analyzers | 
| 02/10/1976 | US3938075 Exhaust gas sensor failure detection system | 
| 01/27/1976 | US3935427 Car diagnosis system |