| Patents for F02P 11 - Safety means for electric spark ignition, not otherwise provided for (1,437) |
|---|
| 07/14/1992 | CA1305240C Method and apparatus for detecting discrete levels of detonation in an internal combustion engine |
| 06/25/1992 | WO1992010673A1 Ignition system for internal-combustion engines |
| 06/02/1992 | US5117792 Overrun preventing device for multi-cylinder engine |
| 05/26/1992 | US5117218 Warning system for an engine |
| 05/26/1992 | US5115793 Ignition device for internal combustion engines, particularly for detecting spark failure |
| 05/26/1992 | US5115792 Ignition control apparatus and method for an internal combustion engine |
| 05/13/1992 | EP0484691A2 Method and apparatus for detecting anomalies in the operation of combustion engines |
| 05/12/1992 | US5111798 Transistor ignition circuit |
| 05/06/1992 | EP0355129B1 Method and apparatus for delivering an engine shutdown signal |
| 05/05/1992 | US5109825 Method and arrangement for recognizing misfires |
| 04/09/1992 | DE4031870A1 Max. IC RPM warning display for motor vehicle - lowers warning limit or range during start=up and warm=up according to e.g. oil and/or coolant temp. |
| 04/07/1992 | US5101802 Spark ignition safety circuit |
| 03/03/1992 | CA1296760C Electronically assisted engine starting means |
| 02/27/1992 | DE4116642A1 IC engine ignition system with functional monitor circuit - combines applications of spark duration and voltage measurements to select whichever method yields more reliable result |
| 02/11/1992 | US5086890 Engine braking system |
| 01/29/1992 | EP0468253A2 Diagnostic device for gas turbine ignition system |
| 01/09/1992 | DE4019914A1 Monitor circuit for oil pressure switch on IC engine - has electronic switch in series with capacitor supply for time delay protection |
| 01/02/1992 | EP0463953A2 Overheat detecting apparatus for engine |
| 12/31/1991 | US5076250 Engine shut-down device |
| 12/12/1991 | DE4017478A1 Ignition method for IC engine esp. in lawn-mower or chain saw |
| 12/10/1991 | US5072394 Method and apparatus for providing ignition timing alarm for internal combustion engine |
| 12/03/1991 | US5069193 Ignition process, arangement and apparatus for internal combustion engines with a magneto |
| 12/03/1991 | US5069154 Marine safety system for positive-pressure engines |
| 11/27/1991 | EP0458762A1 An ignition device for internal combustion engines particularly for detecting spark failure |
| 11/24/1991 | CA2040986A1 System to prevent reverse engine operation |
| 11/05/1991 | US5062401 Fuel supplying device for marine propulsion unit |
| 10/29/1991 | US5060614 Ignition timing control system for an engine having backup function for failure |
| 10/29/1991 | US5060608 Engine control apparatus |
| 10/17/1991 | DE4011521A1 Function monitoring circuit for automobile ignition system - allows fuel injection valves to be switched out upon loss of function signal |
| 10/15/1991 | US5056482 Engine protecting system |
| 10/09/1991 | EP0450763A1 Engine braking system |
| 10/09/1991 | CN2086315U Vehicle electric igniter and anti-stealing alarm |
| 08/28/1991 | EP0443175A2 Ignition device for combustion engines |
| 08/21/1991 | EP0442734A2 Engine speed limiter |
| 08/20/1991 | US5040519 System to prevent reverse engine operation |
| 08/16/1991 | CA2036045A1 Engine speed limiter |
| 08/13/1991 | US5038743 Dual schedule ignition system |
| 08/08/1991 | WO1991011601A1 Process for protecting a catalytic converter from overheating |
| 08/01/1991 | DE4002207A1 Catalyser protection by detection misfiring cylinder detection - cutting of fuel to misfiring cylinder and making fuel mixt. to remaining cylinders leaner |
| 07/31/1991 | EP0438429A1 Process and device for recognizing spark failures. |
| 07/30/1991 | CA1286933C Ignition interrupt system with stall interval |
| 07/02/1991 | US5027774 Spark ignition engines |
| 06/26/1991 | EP0434418A1 Speed limiter for internal combustion engines |
| 06/18/1991 | US5024205 Method and apparatus for conserving battery power in a snowmobile electrical system |
| 06/11/1991 | US5022362 Ignition timing controlling apparatus for internal combustion engine |
| 06/04/1991 | US5020506 Engine igniter |
| 05/22/1991 | EP0427777A1 Protective circuit for battery powered engine ignition system. |
| 05/14/1991 | US5014665 R.P.M. - limiting circuit of an i.c. engine |
| 04/23/1991 | US5009208 Engine speed limiter |
| 04/16/1991 | US5008771 Diagnostic circuit for units providing current control and protection against excessive heat dissipation for semiconductor power devices |
| 03/05/1991 | US4996964 Backup apparatus for ignition and fuel system |
| 02/26/1991 | US4995357 Engine shut-off circuit |
| 02/07/1991 | DE3925224A1 Ignition method for IC engine esp. in lawn-mower or chain saw |
| 02/06/1991 | EP0411292A2 Ignition system with magnetogenerator for combustion engines |
| 01/29/1991 | US4987870 Ignition device for an engine |
| 01/23/1991 | EP0408876A1 Control and extended operation of overheated IC engine |
| 01/22/1991 | US4986232 Arrangement for recognizing misfirings in internal combustion engines with externally controlled ignition |
| 01/22/1991 | US4986228 Low oil pressure interlock switch |
| 01/15/1991 | US4984543 Oil pressure interlock switch powered by the engine starter |
| 01/08/1991 | US4982717 Ignition system for an engine with a reverse-rotation preventing function |
| 01/02/1991 | EP0405415A2 Warning system for an engine |
| 01/01/1991 | US4981120 Low profile internal combustion engine, and lawnmower comprising same |
| 12/18/1990 | US4977877 Speed limiter for internal combustion engines |
| 12/16/1990 | CA2013885A1 Extended over temperature operation and controls for ic engines |
| 12/11/1990 | US4976234 Internal combustion engine stop device |
| 11/28/1990 | EP0399538A2 Engine shut-down device |
| 11/27/1990 | US4973274 Shift assisting device |
| 11/27/1990 | US4972822 Ignition apparatus for an internal combustion engine |
| 11/27/1990 | US4972818 Control apparatus of internal combustion engine |
| 11/20/1990 | US4971001 Engine shut-off system |
| 10/30/1990 | US4966115 Control means of internal combustion engine for marine propulsion |
| 10/17/1990 | EP0392846A2 Ignition timing control system for an engine having backup function for failure |
| 10/02/1990 | US4960092 Engine control system |
| 09/25/1990 | US4958608 Ignition system for internal combustion engine |
| 09/18/1990 | US4957091 Dual schedule ignition system |
| 09/11/1990 | US4955255 Power transmission system for a motor vehicle with an automatic transmission |
| 09/11/1990 | CA1274008A1 Overspeed/overheat circuit with a latch for capacitive ignition systems |
| 09/06/1990 | DE4003664A1 Controlling knock in spark ignition engines - uses microphone to pick=up engine sounds, frequency filter to detect knocking and varies firing angle of spark |
| 09/04/1990 | US4953520 Ignition apparatus of internal combustion engine |
| 08/28/1990 | US4951640 Method of controlling ignition of internal combustion engine |
| 08/28/1990 | US4951625 Internal combustion engine stop device |
| 08/28/1990 | US4951624 Ignition control for an engine to prevent overheating and backfiring |
| 08/23/1990 | DE4004400A1 Circuit for monitoring function of glow plugs of diesel engine - uses auxiliary evaluation circuit-monitor plugs concerning short circuit and min. current |
| 08/21/1990 | US4949684 Starting system for internal combustion engine |
| 08/07/1990 | US4945879 Fuel controller for an internal combustion engine |
| 08/07/1990 | US4945878 Extended over temperature operation and controls for ic engine |
| 07/31/1990 | US4944241 Engine vacuum-condition responsive safety system |
| 07/24/1990 | US4942859 Safety system for an automotive engine |
| 07/17/1990 | US4941445 Electronic position sensor assembly and engine control system |
| 06/27/1990 | CN2058700U Working condition graphic alarm for ignition system of internal combustion engine |
| 06/20/1990 | EP0373694A1 Diagnostic circuit for units providing current control and protection against excessive heat dissipation for semiconductor power devices |
| 06/13/1990 | EP0372741A2 Security system for a vehicle |
| 06/13/1990 | CA2005184A1 Diagnostic circuit for units providing current control and protection against excessive heat dissipation for semiconductor power devices |
| 06/12/1990 | US4932381 Device and process of verification of the wiring of the ignition performance module |
| 06/05/1990 | US4930475 Idling rotating speed control system of outboard engine |
| 06/05/1990 | US4930466 Ignition system for internal combustion engines |
| 05/22/1990 | US4928228 Apparatus for detecting misfire and for controlling fuel injection |
| 04/24/1990 | US4919091 Ignition switch arrangement for an internal combustion engine having an electrical ignition system |
| 04/19/1990 | WO1990004093A1 Process and device for recognizing spark failures |
| 04/03/1990 | US4913124 Ignition apparatus for an internal combustion engine |