Matches 51 - 100 out of 175 < 1 2 3 4 >
Match Document Document Title
5592926 Method of detecting misfire of engine ignition system and device for carrying out the same  
A method of detecting a misfire of an ignition system for an internal combustion engine is provided. By the method, after completion of spark discharge of a spark plug, a high tension pulse which...
5581131 Electronic distributor ignition device for internal combustion engines  
A switching circuit for an electronic distributor ignition device for an internal combustion engine. Current flowing through the primary ignition coil is controlled by a semiconductor switch...
5571245 Ignition apparatus for internal combustion engine  
In an ignition apparatus for an internal combustion engine, an ECU produces an ignition signal to an igniter/coil circuit with an igniter and ignition coil, which in turn sends back a monitor...
5544633 Magneto with dual mode operation  
An ignition system is provided for an internal combustion engine that operates in two modes. In a first mode, the timing of the spark event is under electronic control. In a second mode, the timing...
5539644 System for detecting misfire in a multi-cylinder internal combustion engine  
A misfiring detecting system for an internal combustion engine includes a first misfire determination unit for comparing an engine rotational speed variation amount computed by an engine rotational...
5507264 Ignition system for internal combustion engines with misfiring detection by comparing the same ignition coil  
An ignition system is provided for internal combustion engines for detecting combustion misfirings. The ignition system of an internal combustion engine detects the spark voltage transformed on to...
5503132 Device for detecting misfire of internal combustion engine equipped with double-ended distributorless ignition system  
A misfire detecting device for a double-ended distributorless ignition system is provided. The device includes a pulse generating circuit for generating a positive polarity pulse which is not so...
5490489 Ignition system for an internal combustion engine  
An ignition system for internal combustion engines includes a monitoring circuit (9) which is used for introducing appropriate emergency measures for protecting the catalyst in the case of faulty...
5438970 High tension cord connector with misfire detecting capacitor for internal combustion engine  
A connector disposed at a distal end of a high tension cord having a conductive core therein for carrying an ignition voltage current for igniting air-fuel mixture in an internal combustion engine....
5415148 Misfire-detecting system for internal combustion engines  
A misfire-determining system for an internal combustion engine detects sparking voltage generated when ignition is sequentially performed for each of cylinders. Adjacent durations of sparking...
5415136 Combined ignition and fuel system for combustion-powered tool  
For a combustion-powered, fastener-driving tool, a combined ignition and fuel system comprises a battery, two normally opened switches connected to the battery, namely a head switch and a trigger...
5400760 Misfire detector device for internal combustion engine  
In a misfire detector device for internal combustion engine, an ignition coil is provided to be on-off actuated by a primary current interruptor circuit, each end of the ignition coil being...
5394838 Vaporized fuel injection system  
A vaporized fuel injection system for an internal combustion engine includes a housing adapted to be mounted on the engine and having a vaporizer heat shell therein connected to the engine for...
5311851 Methane monitor and engine shutdown system  
A system is described to detect methane gas at oil well and natural gas well sites that will generate a warning signal when a first, lower concentration of methane gas is detected and will generate...
5309888 Ignition system  
The present invention encompasses an ignition system with an ignition dwell signal (207) having charge and discharge states for driving at least one energy storage device (105) and at least one...
5301650 Ignition device for internal combustion engines  
An ignition device for internal combustion engines includes a monitoring device for a closing duration of a primary current circuit of at least one ignition coil, being set into motion...
5299543 Ignition device for an internal combustion engine  
An ignition device for a multi-cylinder engine includes a plurality of integral ignition device units 9A and 9B associated with respective cylinders. A single ignition detector circuit 8, inserted...
5284124 Ignition system for internal combustion engine  
An ignition system of electronic distribution type for an internal combustion engine with which merits of sharing circuits and elements can be expected with satisfactory result, in which wires of a...
5220902 Ignition device for internal combustion engines  
The device comprises a magnet which induces several current pulses of alternating polarity in a primary winding, the current being restored in a resistance (R1) in series with a transistor (Ti)....
5213081 Misfire sensing apparatus for an internal combustion engine  
A misfire sensing apparatus for an internal combustion engine can determine an occurrence of misfiring in any of engine cylinders as well as which cylinder is misfiring with improved accuracy and...
5201293 Method of monitoring the operation of an internal combustion engine  
A method of monitoring the operation of an internal combustion engine, such as is usable in a motor vehicle, combines the recognition of ignition failures with recognition of combustion failures....
5190019 Interlock circuit for de-activating an engine  
A safety circuit coupled to an ignition circuit and a magneto coil for disabling an engine that powers a riding lawn mower. The circuit includes a triac which is rendered conductive in response to...
5159912 Apparatus for electronic engine control with performance check for the final ignition stage  
A method of electronic engine control for a motor vehicle includes sensing an ignition voltage of a final ignition stage, effecting a performance check of the final ignition stage in response to a...
5156127 Method for optimizing plug firing time and providing diagnostic capability in an automotive ignition system  
The firing time of a spark plug (22) is optimized by measuring its actual firing time (as by detecting the rise of current in the secondary winding (44) of an ignition coil (24)), comparing the...
5143042 Ignition device for internal combustion engines  
An ignition device for internal combustion engines includes at least one ignition coil having primary terminals and first and second secondary terminals separated from the primary terminals. The...
5134987 Ignition circuit monitoring in an internal combustion engine  
The invention relates to ignition circuit monitoring in an internal combustion engine, where a sensor signal is generated in the course of each ignition by an ignition current sensor (5), which is...
5133329 Ignition system for combustion-powered tool  
For a combustion-powered tool, an ignition system is powered by a battery and is arranged so that a sudden discharge of a capacitor, as charged via an oscillator, produces a spark at a spark gap of...
5101802 Spark ignition safety circuit  
A spark ignition safety circuit and starting circuit having grounding of the primary winding through safety switches and preferably also through the ignition switch. The primary winding of the...
5090394 Distributorless ignition system  
A distributorless ignition system for an internal combustion engine includes one spark coil for cylinder of the engine, a first reference signal generator for producing a first signal indicative of...
5076250 Engine shut-down device  
An engine shut-down device is shown for an engine, having a magneto for generating an a.c. voltage in response to a speed of the engine, an ignition coil provided to ignite the engine, a driver...
5060614 Ignition timing control system for an engine having backup function for failure  
An ignition timing control system for an engine provides a counter-measure for an abnormal condition of a signal. The ignition timing control system has a first signal generator for generating a...
5046470 Method of and device for monitoring combustion in a spark ignition internal combustion engine  
A method of and a device for monitoring combustion in a spark ignition internal combustion engine having a combustion chamber and a discharge system wherein a discharge voltage is monitored for...
5042449 Method and related system for controlling the ignition in internal combustion engines, particularly direct-ignition engines with individual coils  
Upon starting or in the event of a malfunction of the sensor for detecting the stage of the engine, the ignition in the various cylinders is controlled according to a sequence different from that...
4996964 Backup apparatus for ignition and fuel system  
A backup apparatus for ignition and fuel system provided with an ignition system backup circuit and a fuel system backup circuit to be used in case of a breakdown of a main circuit. The fuel system...
4986228 Low oil pressure interlock switch  
An ignition-powered interlock switch is provided for disabling a low oil pressure switch in power-driven apparatus such as lawn mowers, pumps, generators, tractors and the like. The interlock...
4984543 Oil pressure interlock switch powered by the engine starter  
A starter-powered interlock switch means is provided for disabling a low oil pressure switch in power-driven apparatus such as lawn mowers, pumps, generators, tractors and the like. The interlock...
4969443 Open secondary detection via reverse circuit sensing  
An open secondary coil of an ignition coil is detected by the use of a reverse current in the primary of the ignition coil to indicate the occurrence of an open secondary coil.
4960087 Device for signalling faulty conditions in motor vehicle  
An electronic control system for an engine of a vehicle is provided with an idling RPM set-point regulator to deliver at its output a nominal idling speed control signal, and a summer for combining...
4949684 Starting system for internal combustion engine  
Two embodiments of starting systems for internal combustion engines that prevent backfiring by precluding starting when the kill switch is energized. In one embodiment, the kill switch includes two...
4941445 Electronic position sensor assembly and engine control system  
An improved electronic position sensor assembly and engine control system is provided in which two sensing elements in a dual sensor provide separate, independent position signals related to...
4930466 Ignition system for internal combustion engines  
An ignition system for a fuel burning engine is provided connected to and from a battery, a coil, and a starter motor. A protection circuit having pressure and temperature sensing switches has...
4918389 Detecting misfiring in spark ignition engines  
Misfiring in internal combustion engines is detected by detecting the voltage induced in the primary winding of the ignition coil, and comparing it to a reference voltage which represents normal...
4915087 Ignition system with enhanced combustion and fault tolerance  
An ignition system having a first primary coil magnetically coupled only to a first second coil and a second primary coil magnetically coupled only to a second secondary coil. The secondary coils...
4909229 Ignition system for an internal combustion engine  
An ignition system for an internal combustion engine for preventing the generating of ignition sparks when the engine is reversely rotated, wherein an ignition coil for energizing a spark plug is...
4895127 Ignition timing control system  
An ignition timing control device for an internal combustion engine includes a load detector for detecting a load on the engine, an engine-revolution detector for detecting a number of revolution...
4892073 Ignition system for internal combustion engines  
An ignition system for internal combustion engines comprises means for generating an ignition signal in synchronism with the revolution of an internal combustion engine and an ignition circuit...
4886029 Ignition misfire detector  
A technique for detecting misfire due to a fault in the secondary of an automotive ignition system compares the ignition signal developed by the ignition coil, preferably the primary winding...
4854292 Ignition system for internal combustion engine  
An ignition system for an internal combustion engine comprising a semiconductor switching device, which is controlled by a control unit, is disclosed. In response to an output from a device for...
4827891 Ignition apparatus for preventing unnecessary charging in an internal combustion engine  
An ignition apparatus of a capacitor discharge ignition type comprises: an ignition timing signal generator to generate an ignition timing signal synchronized with the rotation of the engine; a...
4773381 Rotational signal detecting apparatus for internal combustion engine  
There is provided a rotational signal detecting apparatus comprising a housing, a rotor shaft attached to said housing so as to be freely rotatable, said rotor shaft rotating in synchronism with a...
Matches 51 - 100 out of 175 < 1 2 3 4 >