| 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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| 02/13/1990 | US4899579 Method of testing an internal combustion engine |
| 01/23/1990 | US4895016 Timing pin assembly |
| 01/11/1990 | DE3821740A1 Independent cylinder control of the ignition/fuel injection in internal combustion engines |
| 01/09/1990 | US4893085 Ignition monitoring circuit for an ignition system of an internal combustion engine including an erroneous pulse eliminating circuit means |
| 01/09/1990 | US4892073 Ignition system for internal combustion engines |
| 01/09/1990 | US4891970 Luminosity detector for internal combustion engine, method of operating engine and method of sensing temperature |
| 12/28/1989 | DE3920150A1 Angular position transducer (absolute shaft encoder) |
| 12/27/1989 | CN2050091U Motorcycle simple sharp time unit |
| 12/26/1989 | US4889094 Method for recognizing the power stroke of a cylinder of an internal combustion engine |
| 12/12/1989 | US4887215 Method of examining operation of electronic control system for internal combustion engines |
| 12/12/1989 | US4886029 Ignition misfire detector |
| 12/12/1989 | US4885935 Engine testing system |
| 12/06/1989 | EP0344349A1 Detecting misfiring in spark ignition engines |
| 11/30/1989 | WO1989011591A1 Ignition misfire detector |
| 11/21/1989 | US4881401 Knock detection system |
| 11/16/1989 | WO1989011087A1 Method of detecting knocking in internal combustion engines |
| 10/05/1989 | WO1989009333A1 Observation of combustion in a spark ignition internal combustion engine |
| 10/03/1989 | US4871970 Test circuit for setting the synchronization of a dual ignition system |
| 09/26/1989 | US4870587 Method of discriminating a stroke of a 4-cycle internal combustion engine |
| 09/21/1989 | WO1989008778A1 Cylinder recognition apparatus for a distributorless ignition system |
| 09/20/1989 | EP0333563A1 Electric power supply control unit for a charge in an intellegent integrated power circuit |
| 09/13/1989 | CN2044290U Corrector for ignitting time of gasoline engine |
| 09/12/1989 | US4864995 System for controlling ignition timing in internal combustion engine |
| 08/29/1989 | US4862093 Method and an arrangement for the detection of ionizing current in the ignition system of an internal combustion engine including engine start sequence detection |
| 08/09/1989 | CN2042519U High-voltage spark-energy measuring instrument for petrol engine |
| 07/25/1989 | US4851833 Digital engine analyzer |
| 07/19/1989 | EP0324159A1 Dwell control in a combustion engine with a separated final ignition stage |
| 07/18/1989 | US4849744 Digital engine analyzer |
| 07/18/1989 | US4848304 Ignition control device for internal combustion engine |
| 07/11/1989 | US4847563 Distributorless ignition interface |
| 07/11/1989 | US4847562 Ignition coil primary winding signal processing system |
| 07/11/1989 | US4846129 Ignition system improvements for internal combustion engines |
| 05/30/1989 | CA1254944A1 Method and apparatus for monitoring operation of a spark ignition device in a gas turbine engine |
| 05/16/1989 | US4829962 Procedure for determining optimum ingnition times with regard to engine operation |
| 05/02/1989 | US4825689 Sensing device |
| 04/27/1989 | DE3735234A1 Ignition system for an internal combustion engine of a motor vehicle |
| 04/26/1989 | EP0312560A1 Device and process for checking the wiring of an ignition power module. |
| 04/25/1989 | US4825167 Spark plug testing under dynamic load |
| 04/11/1989 | US4819600 Knock detection system for an internal combustion engine |
| 04/11/1989 | CA1252540A1 Engine top dead center locating method |
| 04/06/1989 | DE3732000A1 Plug and ignition monitor |
| 04/05/1989 | CN2035398U Electronic ignition tester for remote sense engine |
| 03/14/1989 | US4812979 Method and apparatus for analyzing the performance of the electronic ignition of an internal combustion engine |
| 03/14/1989 | US4812768 Digital engine analyzer |
| 03/08/1989 | EP0305736A2 Control device for the glow plugs of a self-igniting combustion engine |
| 03/07/1989 | US4809662 Internal combustion engine ignition system |
| 03/01/1989 | EP0305349A1 A method for improving the starting ability of an internal combustion engine during an engine start |
| 03/01/1989 | EP0305348A1 A method and arrangement for improving the starting ability of an internal combustion engine, when an attempt to start the engine has failed |
| 03/01/1989 | EP0305347A1 A method and an arrangement for the detection of ionizing current in the ignition system of an internal combustion engine |
| 03/01/1989 | CN2033451U Digit ignition time-measure instrument of a engine |
| 02/14/1989 | US4804921 Digital engine analyzer |
| 01/24/1989 | US4800378 Digital engine analyzer |
| 01/12/1989 | DE3722203A1 Device for detecting spark failures |
| 01/11/1989 | EP0298824A1 Device for the detection of a signal fault in an electronic ignition and injection system |
| 01/04/1989 | EP0297951A1 Control device and method for a spark ignition engine starting from the statistical distribution of an angular deviation |
| 01/03/1989 | US4796206 Computer assisted vehicle service featuring signature analysis and artificial intelligence |
| 01/03/1989 | US4795979 Method and apparatus for determining cylinder #1 power firing event in wasted spark ignition systems |
| 12/20/1988 | US4791808 Method of diagnosis of multi-cylinder internal combustion engines and means for carrying out the method |
| 11/29/1988 | US4788505 Advance reference cylinder trigger generator |
| 11/15/1988 | US4784105 High performance digital ignition system for internal combustion engines |
| 11/15/1988 | US4783991 Ignition and combustion engine performance monitor |
| 10/27/1988 | DE3712393A1 Device for checking heater plugs of a motor vehicle exhibiting an auto-ignition-type internal combustion engine |
| 10/25/1988 | US4780832 Radiation probe and method of use |
| 10/25/1988 | US4779455 Air-fuel ratio detecting sensor |
| 10/19/1988 | CN88204073U Tester for checking gas distribution phase of internal combustion engine |
| 10/13/1988 | DE3710521A1 Anordnung zur bestimmung des zuendwinkels bei verbrennungsmotoren Arrangement for determining the ignition angle for internal combustion engines |
| 10/12/1988 | EP0286344A2 Improvements to motor vehicle timing lights and tachometers |
| 10/06/1988 | WO1988007631A1 Arrangement for determining the ignition angle in combustion engines |
| 10/06/1988 | WO1988007630A1 Device and process for checking the wiring of an ignition power module |
| 10/04/1988 | US4774834 Engine Sensors |
| 09/29/1988 | DE3709049A1 Multimeter for adjusting the ignition with the engine completely at rest |
| 09/27/1988 | US4773380 Current flowing time period control system for ignition coil of internal combustion engine |
| 09/15/1988 | DE3806649A1 Device for monitoring at least two electrical loads in motor vehicles |
| 09/07/1988 | EP0281528A1 Variable-energy-spark ignition system for internal combustion engines, particularly for motor vehicles |
| 09/07/1988 | EP0281377A2 Knock detection system |
| 09/01/1988 | DE3705692A1 Testing device for ignition distributors |
| 08/17/1988 | EP0265492A4 High performance digital ignition system for internal combustion engines. |
| 08/10/1988 | EP0277468A1 Method and apparatus for detecting and indicating anomalies in the operation of the ignition systems of internal combustion engines, particularly for motor vehicles provided with catalytic silencers |
| 07/26/1988 | US4760341 Method and apparatus for monitoring operation of a spark ignition device in a gas turbine engine |
| 07/19/1988 | US4758791 Universal secondary high voltage sensor |
| 07/19/1988 | US4758790 Engine analysers for capacitor discharge ignition systems |
| 07/12/1988 | US4757463 Fault isolation for vehicle using a multifunction test probe |
| 06/22/1988 | EP0272225A1 Electrical monitoring device for enabling the identification of the working phases of a cylinder of a controlled-ignition internal combustion engine |
| 06/16/1988 | DE3641144A1 Peak voltage measuring instrument |
| 06/15/1988 | EP0271294A1 Knock detection circuit |
| 06/08/1988 | EP0269933A1 Process for preparing 2-bromo-1',2'-dichloroperfluoro diethyl ether |
| 06/01/1988 | EP0269607A2 Diagnosis method and apparatus for multi-cylinder combustion engines |
| 05/26/1988 | DE3249367C1 Method and device for checking microcomputer-controlled switching devices of control devices in motor vehicles |
| 05/24/1988 | US4746868 Spark plug and wire testing unit |
| 05/17/1988 | US4744243 Method of and apparatus for detecting maximum cylinder pressure angle in internal combustion engine |
| 05/11/1988 | DE3706786C1 Device for monitoring at least two electrical loads in motor vehicles |
| 05/04/1988 | EP0265492A1 High performance digital ignition system for internal combustion engines |
| 05/03/1988 | US4742306 For generating a synchronising signal |
| 04/27/1988 | EP0265345A1 Device for the measurement and control of the ignition angle in an internal-combustion engine |
| 04/26/1988 | US4740745 Polarity and continuity tester for primary and secondary automotive circuits |
| 04/26/1988 | US4739743 Ignition control system for internal combustion engine |
| 04/19/1988 | US4738133 Vehicular testing system |
| 04/06/1988 | EP0262166A1 Process for identifying the working cycle of a cylinder in an internal combustion engine. |
| 04/05/1988 | US4735187 Ignition system for internal combustion engines |
| 03/30/1988 | CN87209315U Fuel lead angle meter for diesel engine |