| Patents for G01M 15 - Testing of engines (13,067) |
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| 09/08/1999 | CN2337549Y Magnetic air valve clearance measuring instrument |
| 09/02/1999 | WO1999044028A1 Process for detecting a misfire in an internal combustion engine and system for carrying out said process |
| 09/01/1999 | EP0890021B1 Process for recognizing irregularities in combustion processes in a multiple cylinder diesel internal combustion engine |
| 08/31/1999 | US5945828 Engine combustion condition detecting apparatus equipped with malfunction diagnosing apparatus |
| 08/31/1999 | US5945593 Method for selectively testing for leakage of combustion chambers of cylinders of internal combustion engines |
| 08/24/1999 | US5941927 Method and apparatus for determining the gas temperature in an internal combustion engine |
| 08/19/1999 | WO1999028603A3 Measurement of contaminant components in exhaust gas and reduction of excessive contaminant emissions during cold starts and while driving |
| 08/17/1999 | US5939616 Knocking detecting sensor |
| 08/12/1999 | DE19803470A1 Motor vehicle IC engine combustion chamber gas-pressure determination |
| 08/10/1999 | US5935189 System and method for monitoring engine performance characteristics |
| 08/10/1999 | US5935187 Engine analyzer with pattern library linked to vehicle ID and display scope configuration |
| 08/10/1999 | US5934610 Vibration monitoring system for multiple aircraft engines |
| 08/10/1999 | US5934256 Method for detecting irregular combustion processes in a multicylinder diesel internal combustion engine |
| 08/05/1999 | DE19903224A1 Detector for ion current generated by combustion ions |
| 08/05/1999 | DE19804327A1 Method for exact rpm determination of IC engine |
| 08/05/1999 | DE19802109A1 Method for taking into account mechanical tolerances when doing timing measurements on rotating shafts, such as internal combustion engine crankshafts. |
| 08/04/1999 | EP0933642A2 A connection inspecting apparatus for a cord and a method for inspecting a connection of a cord |
| 08/04/1999 | EP0805963A4 Detrending engine positional data for rotating position encoders |
| 08/03/1999 | US5932816 Engine power test stand |
| 08/03/1999 | US5932801 Failure diagnosis system for automobile engine |
| 07/27/1999 | US5928303 Diagnostic system for diagnosing deterioration of heated type oxygen sensor for internal combustion engines |
| 07/27/1999 | CA2088030C Method and apparatus for the automated testing of vehicle fuel evaporation control systems |
| 07/27/1999 | CA2053436C Method and apparatus for determining relative contributions of individual cylinders of internal combustion engine using contact tachometer |
| 07/22/1999 | DE19829279A1 Fuel injection nozzle for internal combustion engine |
| 07/15/1999 | WO1999035480A1 Real-time on-road vehicle exhaust gas modular flowmeter and emissions reporting system |
| 07/15/1999 | DE19831457A1 Arrangement for analyzing motor vehicle exhaust gas |
| 07/13/1999 | US5922948 Thermal imaging system for internal combustion engines |
| 07/13/1999 | US5922229 Housings, supports, heaters |
| 07/08/1999 | WO1999019210A8 Vibration monitoring system for multiple aircraft engines |
| 07/08/1999 | DE19813495C1 Method of isolating faulty cylinder in internal combustion engine |
| 07/07/1999 | EP0927346A1 Method of determining misfiring |
| 07/07/1999 | CN2328006Y Testing light for ignition time of motorcycle |
| 07/06/1999 | US5920008 For use with an internal combustion engine |
| 07/01/1999 | DE19860813A1 Method of detecting engine misfiring |
| 06/30/1999 | CN1221489A Method for calculating torque of internal combustion engine |
| 06/29/1999 | US5918275 Sensor for engine control |
| 06/29/1999 | US5918256 Motor vehicle emission analysis system |
| 06/29/1999 | US5916287 Modular automotive diagnostic, test and information system |
| 06/29/1999 | US5916130 Apparatus for detecting abnormality in internal combustion engine-related device and power output system with such apparatus |
| 06/29/1999 | US5915343 System for the rapid cooling of engines on a test bench and relative device |
| 06/24/1999 | WO1999031478A1 Lubrication system monitor |
| 06/24/1999 | WO1999021120A8 An electronic tag including rf modem for monitoring motor vehicle performance with filtering |
| 06/23/1999 | EP0923743A1 Process for inspecting the components of a system in a motor vehicle |
| 06/22/1999 | US5915272 Method of detecting low compression pressure responsive to crankshaft acceleration measurement and apparatus therefor |
| 06/17/1999 | DE19753006A1 Measuring exhaust gases of any vehicle or craft to determine efficiency of anti-pollution components e.g. catalysts |
| 06/16/1999 | EP0922952A1 Method and device for diagnosis for vehicle |
| 06/16/1999 | EP0922220A1 Method and device for determining the mass content of pollutants in a motor vehicle thermal engine exhaust gases |
| 06/15/1999 | US5911772 Apparatus and method for minimizing transient filter effects on speed signal data |
| 06/10/1999 | WO1999028603A2 Measurement of contaminant components in exhaust gas and reduction of excessive contaminant emissions during cold starts and while driving |
| 06/10/1999 | CA2350036A1 Measurement of contaminant components in exhaust gas and reduction of excessive contaminant emissions during cold starts and while driving |
| 06/09/1999 | EP0920611A1 Diagnostic module for testing the tightness of a container |
| 06/08/1999 | US5909724 Engine control method |
| 06/03/1999 | WO1999015872A3 Method for evaluating the march of pressure in a combustion chamber |
| 06/02/1999 | DE19853841A1 High voltage detection electrode for particles in gases |
| 06/02/1999 | DE19743954A1 Arrangement for analyzing motor vehicle exhaust gas |
| 05/27/1999 | WO1999026050A1 Life estimation device for engine and machine having heat source |
| 05/27/1999 | DE19752194A1 Interference measuring method between valve and butt |
| 05/26/1999 | EP0918147A2 Exhaust gas purifying apparatus for internal combustion engine |
| 05/25/1999 | US5907243 Measuring circuit for sensing ionisation within a cylinder of a combustion engine |
| 05/25/1999 | US5906652 Method and system for misfire determination using synchronous correction |
| 05/25/1999 | US5906651 Misfire detecting device of multicylinder internal combustion engine |
| 05/19/1999 | EP0916080A1 Internal combustion engine misfire detection method |
| 05/18/1999 | US5905193 Preignition detection apparatus |
| 05/12/1999 | EP0914596A1 Method and system for determining air/fuel ratio of an engine's combustion process from its exhaust emissions |
| 05/12/1999 | DE19749814A1 Method to measure pressure in internal combustion chamber as function of crankshaft angle |
| 05/12/1999 | DE19748778A1 Bearing system for drive set test bed |
| 05/11/1999 | US5902934 Phase magnitude signal detector |
| 05/06/1999 | WO1999022216A1 Method for optimising the diametrical gaps between the forged piston and the cylinder of a cold engine |
| 05/06/1999 | WO1999010728A3 Device for analysing exhaust emissions from motor vehicles |
| 05/06/1999 | EP0912880A1 Method of testing assembled internal combustion engine |
| 05/06/1999 | EP0912828A1 Method for identifying knocking combustion in an internal combustion engine with an alternating current ignition system |
| 05/05/1999 | CN2317474Y Detecting device for engine oil-way of motor vehicle |
| 05/04/1999 | US5900541 For sensing an engine condition |
| 05/04/1999 | US5900540 Method for determining the compression in the cylinder of a supercharged internal combustion engine with direct injection |
| 05/04/1999 | US5899189 Method to adjust the horsepower output of an internal combustion engine to a target horsepower output range |
| 04/29/1999 | WO1999021129A1 An electronic tag including rf modem for monitoring motor vehicle performance |
| 04/29/1999 | WO1999021120A1 An electronic tag including rf modem for monitoring motor vehicle performance with filtering |
| 04/29/1999 | WO1999020993A1 Velocity adaptive control test system |
| 04/28/1999 | EP0712463B1 Virtual emissions monitor for automobile |
| 04/22/1999 | WO1999019210A1 Vibration monitoring system for multiple aircraft engines |
| 04/22/1999 | DE19745682A1 Automatic method for determining characteristic values for an IC engine |
| 04/22/1999 | DE19741973C1 Method of determining the soot conc. of self-igniting internal combustion engines |
| 04/21/1999 | EP0909941A1 Apparatus for analysing motor vehicles exhaust |
| 04/21/1999 | EP0909380A1 Model-based fault detection system for electric motors |
| 04/21/1999 | EP0909374A1 Device for collecting analogue measurement signals for the acoustic diagnosis of test pieces |
| 04/21/1999 | CN1214758A Process for recognizing irregularities in combustion processes in multiple cylinder diesel internal combustion engine |
| 04/20/1999 | US5895839 Combustion state detecting apparatus for an internal-combustion engine |
| 04/15/1999 | DE19744410A1 Method for monitoring quiet running regulation of multi-cylinder internal combustion engine |
| 04/13/1999 | US5893897 Method of detecting combustion misfires by evaluating RPM fluctuations |
| 04/08/1999 | DE19744067A1 Building temp. model for exhaust gas region of IC engine based on operating parameters |
| 04/08/1999 | DE19741884A1 Verfahren zur Bestimmung relevanter Größen, die den Zylinderdruck in den Zylindern einer Brennkraftmaschine repräsentiert Process for the determination of relevant variables representing the cylinder pressure in the cylinders of an internal combustion engine |
| 04/08/1999 | DE19741860A1 Verfahren zur Diagnose von Brennkraftmaschinen A method for the diagnosis of internal combustion engines |
| 04/07/1999 | EP0907014A2 Diagnostic apparatus and method for detecting noise on a combustion sensor feedback system |
| 04/07/1999 | EP0906501A1 Method and device for detecting misfiring of internal combustion engines |
| 04/06/1999 | US5893042 Method for detecting combustion misfires at one or more permanently misfiring cylinders |
| 04/01/1999 | WO1999015873A1 Process for determining relevant variables which represent the cylinder pressure in the cylinders of an internal combustion engine |
| 04/01/1999 | WO1999015872A2 Method for evaluating the march of pressure in a combustion chamber |
| 04/01/1999 | WO1999015770A1 Internal combustion engine diagnosing process |
| 03/31/1999 | EP0905500A2 Device for diagnosing defects |
| 03/31/1999 | EP0904489A1 A method for detecting an ion current |