| Patents for G01M 15 - Testing of engines (13,067) |
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| 05/25/1993 | US5213081 Misfire sensing apparatus for an internal combustion engine |
| 05/25/1993 | US5212979 Testing device for measurement of a leak rate of a spraying or injection valve |
| 05/06/1993 | DE4208033C1 Identifying and monitoring selected cylinders of IC engine - forming difference value between two RPM values of cylinders in ignition sequence |
| 05/04/1993 | US5207200 Misfiring sensing apparatus for an internal combustion engine |
| 05/04/1993 | US5207091 Control system with malfunction detecting device for use in motor vehicle |
| 04/29/1993 | WO1993008395A1 Method and device for detecting misfires of the air/fuel mixture feeding an internal combustion engine propelling a motor vehicle and their applications |
| 04/27/1993 | USRE34234 Control apparatus for internal combustion engines |
| 04/27/1993 | US5205263 Tank-venting apparatus as well as a method and an arrangement for checking the same |
| 04/22/1993 | DE4134591A1 Controller for motor vehicle IC engine - contains engine speed and wheel slip sensors and suppresses faulty combustion detection when wheel slip occurs |
| 04/22/1993 | DE4133679A1 Verfahren zur adaption von mechanischen toleranzen eines geberrades A method for adaptation of mechanical tolerances of a wheel encoder |
| 04/20/1993 | US5204630 Preignition warning device |
| 04/15/1993 | WO1993007497A1 Process for adapting mechanical tolerances of a pick-up wheel |
| 04/14/1993 | EP0536561A1 Procedure for testing combustion engine parts |
| 04/14/1993 | EP0183846B1 Optical pyrometer sight tube assembly for controlling a gas turbine |
| 04/13/1993 | US5201293 Method of monitoring the operation of an internal combustion engine |
| 04/13/1993 | US5201284 Ignition timing control apparatus |
| 04/13/1993 | CA1316052C Remote mixing control tool with cleaning function |
| 04/08/1993 | DE4232845A1 Misfire monitoring circuit for IC engine with elimination of false signals - applies voltage to firing chamber after firing to monitor ion current through burn and uses reference programme to eliminate spurious events |
| 04/06/1993 | USRE34211 Air-fuel ratio detecting sensor |
| 04/06/1993 | US5200899 Method and system for detecting the misfire of an internal combustion engine utilizing angular velocity fluctuations |
| 04/01/1993 | WO1993006448A1 Automatic motor testing method and apparatus |
| 04/01/1993 | DE4231322A1 Misfire detection system for IC engine - has monitor detecting variations in engine speed during firing cycles and providing correction for uneven running from mechanical effects. |
| 04/01/1993 | CA2118590A1 Automatic motor testing method and apparatus |
| 03/30/1993 | US5198980 Portable testing apparatus for airplane engines |
| 03/30/1993 | US5197325 Misfiring detection system for internal combustion engines |
| 03/25/1993 | DE4131004A1 Cylinder identification method for ignition installation of IC engine - evaluating signals provided by rotating code wheel attached to engine camshaft |
| 03/18/1993 | DE4227104A1 Tracing misfire in internal combustion engine - using non-uniformities in the engine torque detected by measuring crankshaft angular speed and comparing with derived reference value |
| 03/18/1993 | DE4130430A1 Vehicle engine starter motor testing appts. - has hollow drive shaft with two-bearing block carrying drive gear wheel, and internal drive shaft carrying drive wheel on protruding end |
| 03/17/1993 | EP0532420A1 Method and device for measuring the torque of a thermal internal combustion engine, by considering especially the recirculation of exhaust gases and residual burned gases and of the fuel excess |
| 03/17/1993 | EP0532419A1 Method and device for measuring the torque of a thermal engine with internal combustion |
| 03/16/1993 | US5195038 Throttle predictive controller in automatic engine tester |
| 03/16/1993 | US5193513 Misfire detection in an internal combustion engine using exhaust pressure |
| 03/09/1993 | US5191788 Misfire detection device for an internal combustion engine |
| 03/04/1993 | WO1993004353A1 Interactive dynamic realtime management system for powered vehicles |
| 03/02/1993 | US5189907 Internal combustion engine mapping apparatus and method |
| 02/24/1993 | EP0528339A2 Variable volume chamber for measuring vehicle exhaust emissions |
| 02/24/1993 | CN2127494Y Flexible jet tube dynamic test instrument |
| 02/23/1993 | USRE34183 Ignition control system for internal combustion engines with simplified crankshaft sensing and improved coil charging |
| 02/18/1993 | DE4222480A1 Top dead centre detector for four-stroke IC engine - has intermediate shaft between crankshaft and camshaft driven with uneven ratio and with sensors and coincidence circuit |
| 02/16/1993 | US5186148 Abnormality detecting device for an automobile engine |
| 02/16/1993 | US5186146 Combustion evaluation apparatus and combustion controller |
| 02/16/1993 | US5186136 Abnormal combustion detection and vibration reduction system |
| 02/10/1993 | EP0438429B1 Process and device for recognizing spark failures |
| 02/04/1993 | WO1993002341A1 Knock sensor |
| 02/04/1993 | DE4125589A1 Measuring specific fuel consumption and torque of motor vehicle IC engine - setting engine speed at full throttle by braking then idling while measuring average consumption and crankshaft acceleration |
| 02/02/1993 | US5182944 Helicopter icing spray system |
| 01/26/1993 | US5182512 Method and apparatus for determining relative contributions of individual cylinders of internal combustion engine using contact tachometer |
| 01/21/1993 | DE4223649A1 Knock detector for vehicle IC engine - digitises and filters knock sensor signal using two digital filters with centre frequency shifting depending on resonance frequency components |
| 01/21/1993 | DE4123786A1 Klopfsensor Knock Sensor |
| 01/13/1993 | EP0522342A1 Device for measuring the air-fuel ratio of a gas mixture, supplied to a combustion motor |
| 01/13/1993 | EP0448603A4 System for monitoring and controlling engine performance |
| 01/07/1993 | EP0521545A2 Apparatus for diagnosing faults in engine air intake valve |
| 12/27/1992 | CA2065673A1 Preignition warning device |
| 12/24/1992 | DE4130855C1 Auxiliary setter for two=stroke IC engine carburettor - compares signal proportional to actual setting with stipulated threshold values with control unit switching display to indicate result in various working states |
| 12/22/1992 | US5172589 Robot driver |
| 12/16/1992 | EP0518592A1 Vortex suppression for an eductor |
| 12/16/1992 | EP0517774A1 Process and device for measuring the variation in internal pressure in the cylinder of a piston engine. |
| 12/15/1992 | US5170662 Balance for measuring the thrust of a turbojet engine |
| 12/14/1992 | CA2068110A1 Vortex suppression for an eductor |
| 12/10/1992 | WO1992021870A1 Phase detection apparatus and method |
| 12/08/1992 | US5168859 Method and apparatus for judging misfire in internal combustion engine |
| 12/08/1992 | US5168854 Method and apparatus for detecting failure of pressure sensor in internal combustion engine |
| 12/03/1992 | DE4117529A1 IC engine exhaust gas measurer - extracts gas at increased suction power at beginning of process for set time or varied according to measurement threshold |
| 12/01/1992 | US5167146 Emissions test enclosure with minimized air exchange |
| 11/19/1992 | EP0513996A1 A misfire detector for use with an internal combustion engine |
| 11/17/1992 | US5163316 Apparatus for detecting flameout of internal combustion engine |
| 11/12/1992 | DE4115032A1 Elektronisches system in einem kraftfahrzeug zur erkennung einer schlechtwegstrecke An electronic system in a motor vehicle for the detection of a distance-bad |
| 11/12/1992 | DE4114797A1 Determining working stroke in four stroke IC engine - using crank angle and cylinder pressure sensors for signalling monitor unit and referencing engine controller |
| 11/11/1992 | EP0512014A1 A means and method for measuring and controlling smoke from an internal combustion engine |
| 11/11/1992 | CN1066125A Automatic detecting device for crankshaft friction torque and floating |
| 11/04/1992 | CN2121024U Sensor device for failure checkout of combined regulator for diesel locomotive |
| 11/04/1992 | CN1065933A Method and apparatus for auto-testing and -locating top dead point |
| 10/28/1992 | CN2120333U Vehicle integral detector |
| 10/27/1992 | US5157965 Method and apparatus for diagnosing internal combustion engines |
| 10/22/1992 | DE4112480A1 Measuring ageing state of catalyser in IC engine exhaust system - measuring upstream and downstream lambda values with engine operated with rich then weak mixt. or vice=versa and then allowed to idle |
| 10/21/1992 | CN2119653U Wear tester for cylinder of engine |
| 10/15/1992 | WO1992010733A3 Engine misfire, knock or roughness detection method and apparatus |
| 10/06/1992 | US5153834 Method and apparatus for detecting a misfire in a combustion chamber of an internal combustion engine |
| 10/06/1992 | US5152273 Exhaust gas recirculation control device and its failure diagnosis device |
| 10/06/1992 | US5152178 Engine control apparatus |
| 10/01/1992 | WO1992016897A1 Dynamical system analyser |
| 09/29/1992 | US5150682 Method of monitoring emission of nitrogen oxides by an internal combustion engine |
| 09/24/1992 | DE4200752A1 Detecting misfire in IC engine - using crankshaft sensor to detect change in angular acceleration |
| 09/24/1992 | DE4121227C1 Determining internal noise levels in vehicle caused by servo pump - measuring output pressure of pump pulses to determine loudness of hum, whistle and hiss for different pump speeds and pressures |
| 09/23/1992 | CN2116895U Automobile engine testing tool pen |
| 09/23/1992 | CN1018372B Simulating tester of double head strengthen wear between engine's air valve and seat |
| 09/17/1992 | WO1992015852A1 Internal combustion engine mapping apparatus and method |
| 09/17/1992 | DE4123030C1 True-running testing of multi=cylinder IC engine - detecting dynamic loading of engine held in test stand, averaging all-cylinder signals, and comparing with stored data |
| 09/16/1992 | EP0504133A2 Method and device for heating internal combustion engines on a test bench |
| 09/16/1992 | EP0503225A2 Installation with means for fault detecting and display |
| 09/15/1992 | US5146902 Positive pressure canister purge system integrity confirmation |
| 09/08/1992 | US5144927 Method for detecting misfires in an internal combustion engine |
| 09/08/1992 | CA1307322C Capacitive sensor |
| 09/03/1992 | DE4206118A1 Misfire detector with crankshaft tachometer for combustion engine - invalidates alarm signals from conventional detector when engine speed exceeds or load falls below predetermined value |
| 09/02/1992 | EP0501531A1 A method and system for monitoring the operating characteristics of an internal combustion engine, particularly an internal combustion engine with electronic injection |
| 09/02/1992 | EP0501242A1 Method for determining the flow of exhaust gases |
| 08/26/1992 | CN2114156U Engine failure stethoscope |
| 08/23/1992 | WO1992014807A1 Lubricant fluid composition and methods for reducing frictional losses therewith in internal combustion engines |
| 08/23/1992 | CA2103722A1 Lubricant fluid composition and methods for reducing frictional losses therewith in internal combustion engines |
| 08/18/1992 | US5138874 Diagnostic system for detecting faults in engine air intake check valves |