Class 123/645 - Maverick spark suppressor

Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter wherein the ignition circuit contains means
No. of patents: 35
Last issue date: 11/13/2007

Number	Title	Issue Date
7293554	Ignition coil driver device with slew-rate limited dwell turn-on A device to control the charging rate of an ignition coil for an internal combustion spark ignition engine. The device controls the turn-on rate of the primary coil by slew-rate limiting using switching devices and a Miller-effect capacitor in order to reduce second...	11/13/2007
7240882	Medical container loading system and method for use with fluid containers, syringes and medical injectors A medical container loading system includes a medical container loading device and a fill station. The fill station is located proximate to the medical container loading device and includes a mounting plate and a holding assembly. The holding assembly is connected t...	07/10/2007
7140359	Spark plug capable of removing remaining electric charges A spark plug capable of removing the remaining electric charges is proposed. The spark plug can be installed in a vehicle and has an insulating body, a center electrode, a conductive housing and a conductive wire. The center electrode is passed through the insulatin...	11/28/2006
7142080	Stick-type ignition coil and terminal assembly therefor A stick-type ignition coil comprises a coil part, an insulating ring-shaped terminal assembly and a control part. The coil part includes a central core, a primary coil and a secondary coil. The terminal assembly is press-fitted on the upper end part of a primary spo...	11/28/2006
7095182	Ignition control apparatus for internal combustion engine An ignition control apparatus for an internal combustion engine of the present invention has a switching circuit and a control circuit. The switching circuit includes a first switch controlling a main current constituting the most portion of the coil current, a seco...	08/22/2006
6666196	Ignition system having improved spark-on-make blocking diode implementation An ignition coil assembly includes a high voltage (HV) diode at both ends of the secondary winding. The diodes prevent a spark-on-make condition. The diode implementation has particular benefits when used in a 42 volt automotive electrical system....	12/23/2003
6247465	System and method for preventing spark-on-make in an internal combustion engine using manifold pressure A system is provided for preventing spark-on-make in an internal combustion engine, using manifold pressure information. The system includes a pressure sensor and a controller. The pressure sensor is adapted to detect pressure in an intake manifold and pr...	06/19/2001
6082344	Ignition device for an internal combustion engine To provide an ignition device advantageous in cost and space by using an inexpensive small-sized Zener diode having a Zener voltage lower than an induced voltage generated at a primary current supply timing, so as to prevent sparking of a spark plug due t...	07/04/2000
5634453	Ignition apparatus for internal combustion engine An ignition apparatus for internal combustion engine includes an ignition power unit 1A having a power transistor 14A for feeding and shutting off a primary current i1 to and from an ignition coil 13 and a control circuit 2 having a CPU 21 for calculating...	06/03/1997
5586542	Ignition apparatus for internal combustion engine An ignition apparatus for internal combustion engine includes an ignition power unit 1A having an ignition coil 13 and a power transistor 14 for supplying and shutting off a primary current i1 to the ignition coil; and a control circuit 2A for determining...	12/24/1996
5569982	Clamping circuit for IGBT in spark plug ignition system An ignition circuit for a spark plug includes an IGBT switch with a foldback clamp circuit. The foldback clamp has a first high clamp voltage for a first short interval to fire the spark plug, followed by a lower clamp voltage. The power dissipation of th...	10/29/1996
5443055	Ignition system for internal combustion engines An ignition system for internal combustion engines with a control unit for triggering at least one ignition final stage and means for suppressing a switch-on spark. A first embodiment of an ignition system in accordance with the present invention includes...	08/22/1995
4969447	Inductive-discharge ignition device for an internal combustion engine The device is of the type comprising for each engine spark plug a transformer with a secondary winding to be connected to the respective spark plug and a primary winding connected to the output of a power stage able to provide an ON-OFF signal for control...	11/13/1990
4958615	Signal generator for an internal combustion engine A signal generator has a Hall-effect sensor and a magnet which are disposed inside a distributor housing. A vane which is secured to a distributor shaft passes through a gap between the Hall-effect sensor and the magnet when the distributor shaft rotates....	09/25/1990
4886037	Ignition system for an internal combustion engine To prevent spurious sparks from arising at a spark plug (6) connected to the secondary (3) of an ignition coil upon sudden current rise through the primary (2) when a switching transistor (4) serially connected with the primary becomes conductive, the pri...	12/12/1989
4862863	Electronic ignition apparatus including ignition-noise making signal generator In an electronic ignition apparatus, there are provided an ignition signal generator, an ignition circuit, an ignition-noise masking signal generator, a switching transistor and an ignition coil. The ignition signal of the ignition signal generator is sup...	09/05/1989
4653460	Ignition system for internal combustion engines In an ignition system for an internal combustion engine which is operable in synchronism with rotation of the engine to switch on and off a primary current in an ignition coil and applies to a spark plug a high voltage induced in the ignition coil seconda...	03/31/1987
4561411	Ignition system for internal combustion engine A breakerless ignition system includes a resonant circuit whose oscillation is controlled by the relative position between a detector coil 2a embodied therein and a magnetically permeable rotor 1 driven by the engine, and a threshold detector 3 responsive...	12/31/1985
4494519	Ignition system for internal combustion engine A breakerless ignition system includes a resonant circuit whose oscillation is controlled by the relative position between a detector coil 2a embodied therein and a magnetically permeable rotor 1 driven by the engine, and a threshold detector 3 responsive...	01/22/1985
4475520	Contactless erroneous ignition prevention type ignition system for internal combustion engine A contactless erroneous ignition prevention type ignition system for internal combustion engines, in which the energization of the ignition coil is held regardless of an input signal for a predetermined time period after starting the energization. At a fi...	10/09/1984
4421091	Ignition system for internal combustion engines In an ignition system for an internal combustion engine in which the flow of a primary winding energizing current is switched on and off in synchronism with the rotation of the engine and a high voltage is induced in the secondary winding upon switching o...	12/20/1983
4365609	Distributor assembly having an ignition coil therein In a distributor assembly having an ignition coil therein, for use with an internal combustion engine, the positional relationship between the ignition coil and a magnetic sensitive detector, which detects a proper ignition timing, is selected so that the...	12/28/1982
4347827	Noise blanker circuit for use with electronic ignition systems or the like A circuit suitable to be utilized in an electronic ignition system or the like which receives periodic signal information and which is caused to ignore this information during a portion of each period a predetermined time interval after initiation of each...	09/07/1982
4331122	Adapter for improving the operation of electrical circuits in a motor vehicle Adapter plugs are proposed for electronic circuits in motor vehicles which normally receive plug-in units. The adapter plug is interposed between the circuits and the plug-in units and contains circuits which improve the operation of such units. Specifica...	05/25/1982
4290406	Ignition system for internal combustion engine A control signal the value of which gradually changes in response to the turning on of a switching element connected in series to the primary winding circuit of an ignition coil is generated. By use of this control signal, the voltage across the primary w...	09/22/1981
4248200	Ignition system for internal combustion engine A power transistor is connected in series with a DC power supply and the primary winding of an ignition coil. The base of the power transistor is connected to first and second transistors connected in compound fashion. A current limiter circuit is operate...	02/03/1981
4226219	Engine timing circuit with noise immunity An electronic timing circuit for an internal combustion engine includes a Schmitt trigger operated by timing pulses from a magnetic pick-up mounted on the engine. The upper trip point is set high when the pulses have a high amplitude due to a high engine ...	10/07/1980
4202304	Interference protected electronic ignition system for an internal combustion engine To eliminate the effects of disturbances, noise and interference in the signal derived from a speed-dependent signal generator coupled to the engine on the threshold response level of a threshold switch which, upon sensing a leading flank of the signal, c...	05/13/1980
4194481	Breaker signal pick-up and shaping circuit An electronic circuit for picking-up and shaping signals emitted from the breaker of a conventional or electronic ignition system is provided which consists of an infrared optical coupler in which the emitter is connected to the terminal common to both sa...	03/25/1980
4100908	Semiconductor ignition system for internal combustion engines To provide for gradual decay of current flow through the primary of an ignition coil, and hence suppression of spurious sparks at spark plugs, a main switching transistor has its conductivity controlled by the conductivity of the emitter-collector path of...	07/18/1978
4077377	Protective circuit for the ignition system of an internal combustion engine To prevent a spurious inductive spark when the master ignition switch of the vehicle is opened with the breaker terminals closed, so that current stored in the ignition coil might cause a spurious inductive voltage pulse, a protective circuit branch is co...	03/07/1978
4077379	Internal combustion engine semi-conductor ignition control system To prevent generation of a spurious spark at the spark plug if the distributor braker control assembly should have commanded an ignition control transistor to be conductive and when the ignition switch is disconnected under those conditions, thus cutting ...	03/07/1978
4051827	Selective threshold ignition circuit A selective threshold ignition circuit adaptable for use in an electronic ignition system for an engine is disclosed. A magnetic pick-up produces an AC signal about a DC reference level which has a frequency related to the rotational movement produced by ...	10/04/1977
4007724	C. D. ignition system with noise rejection means Disclosed herein is an engine ignition system comprising a charge capacitor which is periodically charged, first and second ignition coils respectively including first and second primary windings and first and second secondary windings connected respectiv...	02/15/1977
3991730	Noise immune reset circuit for resetting the integrator of an electronic engine spark timing controller A pickup operatively coupled with an internal combustion engine develops a train of bi-polar pulses wherein each bi-polar pulse is generated at a predetermined engine crank angle and each bi-polar pulse comprises a leading pulse portion of one polarity an...	11/16/1976

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Class 123/645 - Maverick spark suppressor