| Patents for G01M 15 - Testing of engines (13,067) |
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| 08/05/1992 | EP0497475A2 Method of and apparatus for processing internal combustion engine speed data |
| 07/28/1992 | US5133303 Overheat detecting apparatus for engine |
| 07/22/1992 | EP0383797B1 Process for determining and evaluating the combustion pressure of an internal combustion engine |
| 07/21/1992 | US5132909 Apparatus for diagnosing individual cylinder performance by estimated instantaneous engine speeds |
| 07/21/1992 | US5132625 Distributorless ignition adapter for diagnostic oscilloscopes |
| 07/16/1992 | DE4138765A1 Ascertaining running irregularity value of IC engine - deriving correction term from medians formed from time spans differences of ignition phases |
| 07/15/1992 | EP0494467A2 Electronic control module |
| 07/15/1992 | EP0494423A2 System for detecting combustion state in internal combustion engine |
| 07/15/1992 | CN2110220U Miniature dismountless test instrument for diesel engine fuel |
| 07/14/1992 | US5130930 Diagnostic device for vehicle engine analysis |
| 07/14/1992 | CA1305240C Method and apparatus for detecting discrete levels of detonation in an internal combustion engine |
| 07/09/1992 | WO1992011522A1 Diagnostic device for detecting defective combustion in an internal combustion engine |
| 07/07/1992 | US5127262 Misfire detecting device of an internal combustion engine |
| 07/02/1992 | DE4042025A1 Flame burn condition evaluator for IC engine - uses optic monitoring of flame with separate wavelength metering |
| 06/30/1992 | US5125381 Misfire detection |
| 06/30/1992 | US5125267 Trouble diagnosis apparatus for an internal combustion engine |
| 06/25/1992 | WO1992010733A2 Engine misfire, knock or roughness detection method and apparatus |
| 06/25/1992 | CA2099613A1 Engine misfire, knock or roughness detection method and apparatus |
| 06/23/1992 | CA1304002C High pressure rotor stress damage accumulating method |
| 06/11/1992 | WO1992009875A1 Process for recognizing abnormal combustion in a cylinder of an internal combustion engine |
| 06/11/1992 | WO1992009874A1 Method of detecting irregular combustion in an engine cylinder |
| 06/09/1992 | US5119783 Control apparatus for an internal combustion engine |
| 06/09/1992 | US5119670 Crankshaft angular position detecting apparatus |
| 06/02/1992 | US5119304 Method and apparatus for controlling engine in engine characteristics test |
| 06/02/1992 | US5117681 Correction of systematic position-sensing errors in internal combustion engines |
| 06/02/1992 | US5117631 Method and apparatus for lambda control |
| 05/26/1992 | US5116259 Misfire detecting device of an internal combustion engine |
| 05/26/1992 | US5115779 Engine knock detecting system |
| 05/21/1992 | DE4135797A1 Misfire discriminating method for engine |
| 05/20/1992 | EP0486088A2 Apparatus for detecting crankshaft position |
| 05/20/1992 | EP0485523A1 Engine diagnostic apparatus and method |
| 05/14/1992 | DE4035297A1 Ignition sensor for IC engine - has magnetic field concentrator allowing stray flux compensation for Hall element |
| 05/13/1992 | EP0484691A2 Method and apparatus for detecting anomalies in the operation of combustion engines |
| 05/12/1992 | US5111686 Fault diagnosis apparatus for mounting on a vehicle |
| 05/06/1992 | EP0483594A2 Method and apparatus for determining relative contributions of individual cylinders of internal combustion engine using contact tachometer |
| 05/06/1992 | EP0355129B1 Method and apparatus for delivering an engine shutdown signal |
| 05/05/1992 | US5109825 Method and arrangement for recognizing misfires |
| 05/05/1992 | US5109695 Misfire detection in an internal combustion engine |
| 04/29/1992 | EP0481975A1 Process and device for lambda value control. |
| 04/21/1992 | US5105657 Method and apparatus for detecting misfired cylinder of internal combustion engine |
| 04/21/1992 | US5105651 Method of and apparatus for analyzing exhaust gases of motor vehicles |
| 04/16/1992 | WO1992006292A1 Distributorless ignition adapter for diagnostic oscilloscopes |
| 04/16/1992 | DE4131936A1 Detecting critical rotary vibrations, esp. in engine drive trains - using transducer elastically coupled to drive train with resonant frequency in region of critical vibration |
| 04/14/1992 | US5105372 Data processing system using a kalman filter |
| 04/01/1992 | EP0477850A1 Control process of nitrogen oxyd emission for an internal combustion engine |
| 03/31/1992 | US5099680 Method of analyzing vehicle emissions and in-flight gas analysis apparatus |
| 03/26/1992 | DE4131383A1 IC engine knocking detector for motor vehicle - measures periods for preset crankshaft angles to ensure correspondence with predetermined piston positions |
| 03/18/1992 | EP0475566A1 Apparatus and method for misfire indication in an internal combustion engine |
| 03/18/1992 | EP0474652A1 Process for measuring erratic running in an internal combustion engine and application of said process. |
| 03/17/1992 | US5095742 Determining crankshaft acceleration in an internal combustion engine |
| 03/05/1992 | DE4027415A1 Evaluating program for stroke IC engine diagnosis - is applied to sub-modules for different engine functions combined into main program |
| 03/04/1992 | EP0473505A1 Procedure and apparatus for the determination of the functional characteristics of a motor with independent cylinder feeds |
| 03/04/1992 | EP0473079A2 Apparatus and method for reducing vibration of internal combustion engine |
| 03/03/1992 | US5093792 Combustion prediction and discrimination apparatus for an internal combustion engine and control apparatus therefor |
| 02/20/1992 | DE4126782A1 Faulty ignition detector for IC engines - compares working stroke pressure information signal from processor with valve delivered by threshold valve calculator |
| 02/18/1992 | US5088318 Determining device for determining a failure in an engine cylinder |
| 02/13/1992 | DE4126314A1 Detecting vehicle engine power deficiencies - by testing instantaneous engine power state and comparing with specified value based on reduction rate and air induction value |
| 02/12/1992 | EP0470211A1 Diagnostic process for checking regulation elements for the control of internal-combustion engines |
| 02/11/1992 | US5088044 Knocking detection device for an automotive engine |
| 02/11/1992 | US5087881 Ic engine cylinder output power measurement apparatus by monitoring the output of an alternator driven by the engine |
| 02/11/1992 | US5086741 Method and apparatus for detecting and controlling combustion condition in an internal combustion engine |
| 02/05/1992 | EP0469658A2 Method of analysing cylinder performance in an internal combustion engine |
| 02/04/1992 | CA1295366C Measurement and control of exhaust gas recirculation with an oxygen pumping device |
| 01/29/1992 | EP0468295A2 Device for measuring the operating parameters of combustion engines, and the use of a reader of card-shaped carriers in such a device |
| 01/29/1992 | CN2094740U 495a diesel engine test instrument |
| 01/22/1992 | EP0466849A1 Process for associating combustion defects with a cylinder in an internal combustion engine |
| 01/22/1992 | EP0364460B1 Observation of combustion in a spark ignition internal combustion engine |
| 01/22/1992 | CN2094058U Automatic detecting positioner for dead points on internal combustion engine pistons |
| 01/22/1992 | CN2094057U 测功器 Dynamometer |
| 01/22/1992 | CN1058001A Basic calcium aluminum hydrony phosphites, a process for their proeuction and their use |
| 01/16/1992 | DE4021915A1 Pulsating parameter detector for IC engine - has pneumatic filtering and/or damping arrangement producing quasi sinusoidal parameter for sampling |
| 01/14/1992 | US5079945 Crankshaft direction of rotation detecting apparatus |
| 01/09/1992 | DE4120935A1 Control circuit identifying misfiring of IC engine - analyses misfire signals to determine degree of misfire and adjust fuel injection |
| 01/08/1992 | EP0464822A1 A method and apparatus for measuring physical quantities, in particular power, in turbocompressor forced induction internal-combustion engines |
| 01/08/1992 | CN1057702A Method of recording engine cycle and its apparatus |
| 01/07/1992 | US5078008 Apparatus for controlling output shaft torque of an engine in an engine tester by correcting inertia of dynamometer |
| 01/02/1992 | EP0463954A1 Balance for measuring axial thrust of a turbojet |
| 01/02/1992 | EP0463953A2 Overheat detecting apparatus for engine |
| 01/02/1992 | EP0463537A2 Method for off-bench determining of technical characteristics of combustion engines and their single cylinders, and apparatus making use of this method |
| 01/02/1992 | EP0463536A2 Method for determining the technical condition of fuel injection systems and their parts |
| 01/02/1992 | DE4019581A1 Test stand for IC engine - has measurement chamber contg. exhaust system mounted in representative position w.r.t. engine in acoustically separate chamber |
| 01/02/1992 | DE4019573A1 Detecting misfiring and/or uneven injection in IC engine - by detecting and evaluating partial pressure of free oxygen in exhaust gas |
| 01/02/1992 | DE4019572A1 Detection of endangered or damaged catalyst and misfiring of IC engine - by evaluating measurements subject to different catalytic effects |
| 01/01/1992 | CN2092093U Analyzer of process doing work for four-stroke ic engine |
| 12/31/1991 | US5076237 Means and method for measuring and controlling smoke from an internal combustion engine |
| 12/31/1991 | US5076098 System for detecting combustion state in internal combustion engine |
| 12/19/1991 | DE4018872A1 Dynamic determn. of pollutant concns. in automobile exhaust gases - by measuring vol. of undiluted exhaust gas and/or diluent air at successive time interval |
| 12/17/1991 | US5073862 Method and apparatus for diagnosing problems with the thermodynamic performance of a heat engine |
| 12/10/1991 | US5072391 Diagnostic system for a motor vehicle |
| 12/10/1991 | US5070727 Crankshaft angular position detecting apparatus |
| 12/10/1991 | US5070726 Cylinder recognition apparatus for a multi-cylinder internal combustion engine |
| 12/05/1991 | WO1991019260A1 Engine diagnostic apparatus and method |
| 12/05/1991 | CA2062769A1 Engine diagnostic apparatus |
| 12/04/1991 | EP0458993A1 Knock control on a cylinder-by-cylinder basis in an internal combustion engine |
| 11/27/1991 | EP0457873A1 Robot driver. |
| 11/27/1991 | CN2089629U Automatic detecting device for crank shaft friction torque and flutter |
| 11/21/1991 | DE4017473A1 Gas-borne particle measuring system - esp. for vehicle exhaust gas emission tests |
| 11/21/1991 | DE4017472A1 Analyser esp. for vehicle exhaust gas |
| 11/20/1991 | CN1014831B Electron brain comprehensive testing control instrument |
| 11/14/1991 | DE4014966A1 Engine diagnosis method using temp. chamber sensitive element - to measure combustion chamber temp. at indication of engine load |