| Patents for F02P 17 - Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines (2,871) |
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| 09/20/1994 | US5349299 Fuel supply misfire-detecting system for internal combustion engines |
| 09/20/1994 | US5347856 Misfire detector device for use in an internal combustion engine |
| 09/20/1994 | US5347855 Misfire detector device for use in an internal combustion engine |
| 09/14/1994 | EP0615067A2 Ionization misfire detection apparatus and method for an intenal combustion engine |
| 09/14/1994 | CN2177101Y Dual machine for emergency igniting and electric inspection of car |
| 09/13/1994 | US5347422 For igniting fuel in a turbine engine |
| 09/09/1994 | CA2117168A1 Ionization misfire detection apparatus and method for an internal combustion engine |
| 09/07/1994 | EP0563066B1 Diagnostic device for detecting defective combustion in an internal combustion engine |
| 09/06/1994 | US5343844 Apparatus and method for detecting misfiring in an internal combustion engine |
| 09/01/1994 | DE4403348A1 Method for detecting misfiring, based on fluctuations in the rotation of a crankshaft |
| 08/31/1994 | EP0455649B1 Processes for assigning ignition signals to a reference cylinder |
| 08/30/1994 | US5343154 Diagnostic device for gas turbine ignition system |
| 08/30/1994 | CA1331778C Abnormal combustion-detecting device and combustion control device for internal combustion engines |
| 08/24/1994 | EP0611417A1 Free-running capacitive discharge ignition system with spark frequency control |
| 08/16/1994 | US5339245 System for detecting combustion state in internal combustion engine |
| 08/16/1994 | US5337716 Control apparatus for internal combustion engine |
| 08/09/1994 | US5337003 Self-contained, clip-on engine operating time log |
| 08/02/1994 | US5334938 Method of monitoring an internal combustion engine ignition system by measuring spark duration or voltage and distinction between isolated errors and recurrent errors |
| 08/02/1994 | US5333585 Control device for idle rotation of engine |
| 07/27/1994 | EP0607382A1 Sequential spark ignition system for internal combustion engines. |
| 07/26/1994 | US5331848 Misfiring detecting method and apparatus |
| 07/20/1994 | EP0607035A2 A spark plug voltage detector for use in internal combustion engines |
| 07/12/1994 | US5327867 Misfire-detecting system for internal combustion engines |
| 07/05/1994 | US5327090 Misfire-detecting system for an internal combustion engine which detects a misfire due to the fuel supply system |
| 06/23/1994 | WO1994013951A1 Method for cylinder identification in an internal combustion engine when idling |
| 06/22/1994 | EP0602803A2 Cylinder number identification on a distributorless ignition system engine lacking CID using a single secondary voltage sensor |
| 06/21/1994 | US5322045 Misfire-detecting system for internal combustion engines |
| 06/21/1994 | US5321978 Method and apparatus for detecting cylinder misfire in an internal combustion engine |
| 06/15/1994 | EP0601291A1 High voltage transformer |
| 05/31/1994 | US5317267 Spark plug voltage probe for use with an internal combustion engine |
| 05/24/1994 | US5315252 Automotive test system with input protection |
| 05/24/1994 | US5313826 For detecting variation in torque in a rotating power transmission member |
| 05/18/1994 | EP0597717A2 Apparatus for measuring a resistance of a high tension resistance electrical cable |
| 05/18/1994 | EP0597232A2 Control method and device for lean burn internal combustion engine |
| 05/17/1994 | US5311773 Method of and an apparatus for misfire and rough road detection |
| 05/11/1994 | EP0596471A2 Alternative current ignition system for combustion engines with control of the ignition energy |
| 05/11/1994 | EP0596233A2 High voltage signals detection device |
| 05/10/1994 | US5309884 Internal combustion engine control apparatus with ignition coil diagnosis function |
| 05/10/1994 | US5309756 Device for determining malfunction of an engine cylinder |
| 05/04/1994 | EP0594792A1 Method and device for the measuring and monitoring of electrical spark gaps. |
| 05/03/1994 | US5307786 Ignition apparatus for an internal combustion engine |
| 05/03/1994 | US5307670 Misfire discriminating method for an engine |
| 05/03/1994 | CA1329016C Luminosity detector for internal combustion engine, method of operating engine and method of sensing temperature |
| 04/27/1994 | EP0594330A2 Method of and apparatus for discriminating misfire |
| 04/26/1994 | US5307017 Sparking voltage detecting device for internal combustion engines |
| 04/26/1994 | US5305635 System and method for filtering a misfire detecting data stream to yield optimum measurement of misfire rate |
| 04/14/1994 | WO1994008135A1 Electronic ignition control module tester |
| 04/14/1994 | WO1994008133A1 Ignition system with variable primary voltage limitation and defect diagnosis |
| 04/12/1994 | US5301649 Ignition device for internal combustion engines |
| 04/12/1994 | US5301546 Misfire detecting device for internal combustion engine |
| 04/07/1994 | DE4315999A1 Zündanlage für Brennkraftmaschinen Ignition system for internal combustion engines |
| 04/06/1994 | EP0590181A1 Method of determination of dwell of a primary circuit of an ignition system of a internal combustion engine |
| 04/06/1994 | CN2160770Y Ignition scale for gasoline engine |
| 04/05/1994 | US5299543 Ignition device for an internal combustion engine |
| 03/22/1994 | US5296869 Digital engine analyzer |
| 03/17/1994 | WO1994005909A1 Free-running capacitive discharge ignition system with spark frequency control |
| 03/16/1994 | EP0587455A2 Misfire detector using different methods for high and low engine speeds |
| 03/15/1994 | US5294888 Device for detecting misfire of an internal combustion engine by comparing voltage waveforms associated with ignition system |
| 03/15/1994 | US5294887 Device for generating a trigger signal from ignition pulses in an ignition system |
| 03/10/1994 | DE4229773A1 IC engine cylinder identification for ignition and=or fuel injection control - provides ignition pulse for each second rotation of crankshaft upon abnormal camshaft phase signal |
| 03/09/1994 | EP0586287A1 High energy ignition generator especially for a gas turbine |
| 03/08/1994 | US5293129 Ionic current sensing apparatus for engine spark plug with negative ignition voltage and positive DC voltage application |
| 03/05/1994 | CA2105042A1 High-energy ignition generator in particular for a gas turbine |
| 03/02/1994 | EP0584130A1 Method and device for detection of ignition failures in an internal combustion engine cylinder. |
| 02/24/1994 | DE4324312A1 Determn of lean fuel-air mixture limit for IC engine - measuring stream of ions and characteristic value of flowing ion stream in one cylinder of engine immediately after ignition to give lean mixture limiting value. |
| 02/23/1994 | EP0583496A1 Procedure for detecting misfire |
| 02/22/1994 | US5287836 Control system for internal combustion engines |
| 02/22/1994 | US5287737 Device for determining misfiring of a cylinder of a multicylinder engine |
| 02/17/1994 | WO1994003723A1 Sequential spark ignition system for internal combustion engines |
| 02/15/1994 | US5287282 Misfire diagnosis apparatus for an internal combustion engine |
| 02/10/1994 | DE4226248A1 Zündanlage für Brennkraftmaschinen Ignition system for internal combustion engines |
| 02/01/1994 | US5283527 Methods and apparatus for detecting short circuited secondary coil winding via monitoring primary coil winding |
| 01/11/1994 | US5278760 Method and system for detecting the misfire of an internal combustion engine utilizing engine torque nonuniformity |
| 01/04/1994 | US5275037 Apparatus for detecting misfire in internal combustion engine |
| 12/28/1993 | US5274336 For acquiring a digital electrical signal from a source conductor |
| 12/28/1993 | US5272914 Ignition system for internal combustion engines |
| 12/21/1993 | US5271268 Ionic current sensing apparatus |
| 12/16/1993 | DE4319787A1 Misfire detector for IC engine - contains crankshaft revolution rate sensor for generating signals related to ignition periods, and arithmetic units for detecting persistent and intermittent misfires. |
| 12/15/1993 | EP0404763B1 Cylinder recognition apparatus for a distributorless ignition system |
| 12/14/1993 | US5269282 Misfire detector for use in internal combustion engine |
| 12/14/1993 | US5269178 Engine misfire, knock of roughness detection method and apparatus |
| 12/09/1993 | DE4318657A1 Car IC engine ignition system - has diodes for ionisation currents embedded in distributor cap between peripheral and central terminals |
| 12/09/1993 | DE4218803A1 Monitoring the operation of an IC engine for ignition mis-fire - has second spark applied to spark-plug near beginning of exhaust stroke, with voltage variation analysed |
| 12/09/1993 | DE4218404A1 Controlling ignition energy supply for IC engine sparking plug - requires continual comparison of engine parameter, such as quietness of running, with initial value, and adjusting ignition energy accordingly |
| 12/08/1993 | CN2148831Y Display detector of ignition system for mechanically-propelled vehicle |
| 12/01/1993 | CN2148190Y High tension ignition wire for petrol engine |
| 11/23/1993 | US5263452 Knocking detector for internal combustion engine |
| 11/23/1993 | US5263451 Method of controlling the operation of an i. c. engine |
| 11/23/1993 | US5263364 Apparatus for detecting misfire in multicylinder internal combustion engines |
| 11/18/1993 | EP0570189A2 A spark plug voltage detecting probe device for use in internal combustion engine |
| 11/10/1993 | EP0568551A1 Device for detecting faulty firing in an internal-combustion engine. |
| 11/02/1993 | US5258753 Digital engine analyzer |
| 11/02/1993 | US5257533 Misfire detection device for an internal combustion engine |
| 10/27/1993 | EP0566805A1 Measuring probe for ignition circuit |
| 10/20/1993 | EP0566335A2 Switch mode ignition coil driver and method |
| 10/19/1993 | US5253627 Burning condition detecting device and burning control device in an internal combustion engine |
| 10/14/1993 | WO1993020426A1 Automotive diagnostic testing apparatus |
| 10/06/1993 | EP0563066A1 Diagnostic device for detecting defective combustion in an internal combustion engine |
| 10/05/1993 | US5250935 Cylinder ignition waveform signal of a multiple cylinder combustion engine |
| 09/28/1993 | US5247919 Ignition system for an engine |