| Patents for G01M 15 - Testing of engines (13,067) |
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| 01/17/1991 | DE3922523A1 Vorrichtung zur regelung, steuerung und/oder ueberwachung der verbrennung in brennkraftmaschinen Apparatus for control, management and / or ueberwachung the combustion in internal combustion machines |
| 01/16/1991 | EP0408518A1 A method and system for monitoring the operating characteristics of an internal combustion engine with several cylinders, particularly an internal combustion engine with electronic injection |
| 01/16/1991 | EP0407520A1 Luminosity detector for internal combustion engine |
| 01/15/1991 | US4985857 Method and apparatus for diagnosing machines |
| 01/15/1991 | US4984454 Engine testing system |
| 01/10/1991 | DE4020681A1 Internal cylinder pressure measurer for IC engine - selectively passes cylinder pressure detector signals to computer performing real=time pressure parameter derivation |
| 01/09/1991 | CN2069025U Electric appliance faulting detector in starting system of plane engine |
| 01/03/1991 | DE3933947C1 Combustion pressure determn. method for petrol-diesel engine - using acceleration sensors fitted at crankshaft bearings of engine in cylinder axial direction |
| 01/02/1991 | CN1011075B Apparatus diagnosing power equilibrium of inner combustion engine |
| 12/20/1990 | DE4009285A1 Verfahren zur zylinderselektiven ueberwachung des energieumsatzes bei einer mehrzylinder-brennkraftmaschine A method for cylinder-selective frequency monitoring of energy turnover in a multi-cylinder internal combustion engine |
| 12/13/1990 | WO1990015243A1 Process for detecting and evaluating knock signals in the individual cylinders of an internal combustion engine |
| 12/12/1990 | EP0401847A2 Method and apparatus for controlling engine in engine characteristics test |
| 12/06/1990 | DE3917907A1 Klopfsignal-erfassungs- und auswerteverfahren zum betrieb eines otto-motors dicht unterhalb der klopfgrenze Knock signal detection and evaluation method for operating a spark-ignition engine just below the knock limit |
| 12/04/1990 | US4975848 Diagnosis system for a motor vehicle |
| 12/03/1990 | WO1990015235A1 Process for measuring erratic running in an internal combustion engine and application of said process |
| 11/28/1990 | EP0399069A1 Method to determine with a pressure sensor the combustion pressure in a cylinder of a combustion engine |
| 11/22/1990 | DE3916467A1 IC engine contaminant emission indication method - measuring load and revolution rate and comparing with characteristic field measured on test bed |
| 11/20/1990 | USRE33450 Dynanometer engine performance analyzer system |
| 11/14/1990 | EP0396665A1 Power measurement apparatus. |
| 11/06/1990 | US4967727 Fuel controller for an internal combustion engine |
| 10/31/1990 | EP0394300A1 Crankshaft angle sensing system |
| 10/23/1990 | US4964298 Device for controlling the air pressure in the low pressure environmental testing chamber for self-propelled vehicles |
| 10/17/1990 | EP0392650A1 Engine knock sensing system |
| 10/16/1990 | US4962740 Fuel controller for internal combustion engine |
| 10/09/1990 | US4961341 Testing device for an oxygen sensor |
| 10/02/1990 | US4960087 Device for signalling faulty conditions in motor vehicle |
| 09/05/1990 | EP0385321A2 Endoscope holding apparatus for inspecting reciprocating engines and rotary engines having ignition plug holes, endoscope including endoscope holding apparatus and inspecting method |
| 09/05/1990 | EP0331674B1 Process for driving computer-controlled final control elements and computer coupled to a final control element |
| 09/05/1990 | CN1045153A Simulating tester of double head strengthen wear between engine's air valve and seat |
| 09/04/1990 | US4953390 Method and a device for measuring the air/fuel ratio of an internal combustion engine |
| 08/29/1990 | EP0383797A1 Process for determining and evaluating the combustion pressure of an internal combustion engine. |
| 08/28/1990 | US4951498 Method for testing internal combustion engine |
| 08/21/1990 | US4950084 Capacitive sensor |
| 08/16/1990 | EP0381855A2 Misfire detection device |
| 08/14/1990 | US4947680 Separation of variables in an ion gap controlled engine |
| 08/09/1990 | DE4005803A1 Vehicle charging system directly related to atmos. pollution - compares measured exhaust gas compsn. and quantity and other relevant factors against set standards |
| 08/07/1990 | US4945876 System and method for detecting knocking in an internal combustion engine |
| 07/24/1990 | US4943776 Device and a method for the detection of pinking in Otto engines |
| 07/17/1990 | US4941347 Turntable-using testing apparatus |
| 07/10/1990 | US4940392 Jet pump with stabilized mixing of primary and secondary flows |
| 07/10/1990 | US4940033 Method of operating an engine and measuring certain operating parameters |
| 07/10/1990 | US4940030 Abnormality detecting system for an automotive engine |
| 07/05/1990 | DE3844287A1 Method and device for testing a safety cut-off device in internal combustion engines, in particular diesel engines |
| 06/28/1990 | WO1990007051A1 System for monitoring and controlling engine performance |
| 06/26/1990 | US4936277 System for monitoring and/or controlling multiple cylinder engine performance |
| 06/14/1990 | WO1990006499A1 Luminosity and temperature detector for internal combustion engine |
| 06/14/1990 | WO1990006432A1 Engine exhaust system |
| 06/12/1990 | US4932628 Portable engine test stand |
| 06/12/1990 | US4932379 Method for detecting engine misfire and for fuel control |
| 06/05/1990 | US4930479 Irregular combustion determining device for an internal combustion engine |
| 06/05/1990 | US4930478 Method of operating an engine |
| 05/15/1990 | US4926342 High pressure rotor stress damage accumulating method |
| 05/08/1990 | US4922749 In an internal combustion engine |
| 04/25/1990 | EP0364460A1 Observation of combustion in a spark ignition internal combustion engine. |
| 04/24/1990 | US4919099 Combustion monitoring |
| 04/19/1990 | WO1990004093A1 Process and device for recognizing spark failures |
| 04/05/1990 | WO1990003558A1 Power measurement apparatus |
| 04/04/1990 | EP0361057A2 A device and a method for the detection of knocking in Otto engines |
| 03/22/1990 | WO1990002871A1 Engine misfire detection and engine exhaust systems |
| 03/20/1990 | US4909072 Measurement and control of exhaust gas recirculation with an oxygen pumping device |
| 03/15/1990 | DE3928778A1 Detecting approach positions between stator and rotor - by detecting contact in test circuit connected to stator and rotor shaft of spiral loader |
| 03/14/1990 | EP0358167A2 Torque control system for engine performance test machine for internal combustion engines |
| 03/08/1990 | DE3829660A1 Load display for an internal combustion engine |
| 03/06/1990 | US4907176 Flag generation system |
| 02/28/1990 | EP0355968A2 Method and apparatus for diagnosing machines |
| 02/28/1990 | EP0355129A1 METHOD and Apparatus FOR DELIVERING AN ENGINE SHUTDOWN SIGNAL |
| 02/28/1990 | CN1006998B Optical pyrometer sight tube assembly for controlling a gas turbing |
| 02/20/1990 | US4903220 Dual ported speed up memory in ROM location for engine analyzer |
| 02/20/1990 | US4903219 Method of identifying flag bits |
| 02/14/1990 | EP0354497A1 Combustion fault detection apparatus and control system for internal combustion engine |
| 02/06/1990 | US4898025 Method for determining the mean effective torque of an internal combustion engine |
| 01/25/1990 | DE3923937A1 Diagnoseeinrichtung fuer ein kraftfahrzeug Diagnostic device for a motor vehicle |
| 01/24/1990 | EP0351960A2 Measurement and control of exhaust gas recirculation with an oxygen pumping device |
| 01/23/1990 | US4895020 Air flow rate meter for internal combustion engines |
| 01/10/1990 | EP0349608A1 Distance-measuring device |
| 01/10/1990 | CN1038696A 涡轮机叶片疲劳监测器 Turbine blade fatigue monitor |
| 01/09/1990 | US4891970 Luminosity detector for internal combustion engine, method of operating engine and method of sensing temperature |
| 12/28/1989 | WO1989012810A1 Remote mixing control tool with cleaning function |
| 12/19/1989 | US4887574 Control apparatus for internal combustion engines |
| 12/19/1989 | US4887456 Knock detection system |
| 12/12/1989 | US4885935 Engine testing system |
| 12/12/1989 | US4885934 Exhaust backpressure tester |
| 11/30/1989 | DE3916567A1 Device for the stepwise combustion of a fuel-air mixture |
| 11/29/1989 | CN1037590A Device for detection of braking engine |
| 11/28/1989 | US4884206 Process and processing circuit for the analog output signal of a sensor |
| 11/23/1989 | EP0343143A2 Process and apparatus for measuring the lambda and/or the air/fuel ratio |
| 11/23/1989 | EP0342508A1 Method of generating trigger pulses |
| 11/23/1989 | DE3816297A1 Angle of rotation measuring device |
| 11/21/1989 | US4881404 Diesel engine simulator and a method of adjusting the dynamic running characteristics of a diesel engine |
| 11/16/1989 | WO1989011031A1 Method of operating an engine and measuring certain engine parameters |
| 11/16/1989 | WO1989011030A1 Process and device for lambda value control |
| 11/15/1989 | EP0341818A2 A device for detecting engine brake |
| 11/07/1989 | US4878381 Evaluation device for measuring signals of a lambda probe |
| 11/07/1989 | US4878380 Internal combustion engine |
| 11/02/1989 | EP0340206A2 Method and test-bench for the determination of dynamic quantities for internal combustion engines |
| 10/05/1989 | WO1989009333A1 Observation of combustion in a spark ignition internal combustion engine |
| 09/27/1989 | EP0334441A1 Capacitive transducer |
| 09/26/1989 | US4870587 Method of discriminating a stroke of a 4-cycle internal combustion engine |
| 09/26/1989 | US4870585 Dynamometer engine performance analyzer system |
| 09/26/1989 | US4869094 Gas sampling valve |