Class 123/621 - Having an ignition coil with multiple primary or secondary windings

Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter in which the ignition system includes an
No. of patents: 38
Last issue date: 09/11/2007

Number	Title	Issue Date
7267116	Spark plug and ignition apparatus using same A power-saving type of ignition apparatus is provided with a spark plug of which electrodes (30, 40) are regulated in their shapes to lower an amount of energy required for its ignition. To face to a tip (31) of a center electrode (30) extending...	09/11/2007
7268655	Ignition coil with secondary winding center tap connected to shield A distributorless ignition coil has two high voltage secondary windings wound around a primary winding, with each secondary winding being electrically connected to a respective spark plug. A shield surrounds the secondary windings. The secondary windings share a com...	09/11/2007
7148780	Twin spark pencil coil An ignition apparatus having twin spark high-voltage outputs incorporates features of a pencil coil wherein at least a portion of a transformer assembly is disposed within a spark plug well when installed in an internal combustion engine, thereby reducing the space ...	12/12/2006
7136798	Method and apparatus to manage multi-computer demand A method, multi-computer media and apparatus that uses an economics model to manage the demand and the resource satisfying that demand for multi-computer memory. The present invention quantifies demand as a function of space, and computer resource as a function of t...	11/14/2006
7131183	Screw in high voltage housing terminal for ignition coil An ignition coil and a method for its manufacturer are provided, the ignition coil including a housing, a primary winding and a secondary winding disposed in the housing, and a terminal including a connection portion in electrical communication with the secondary wi...	11/07/2006
6860256	Ignition apparatus for internal combustion engine There is provided an ignition coil alleviating an insulating load between output terminals and at inside of the ignition coil and stabilizing insulating performance by constituting two outputs from the ignition coil by the same output electrode. Specifically, the in...	03/01/2005
6328025	Ignition coil with driver An ignition coil having a core with a first leg and a second leg, a first primary winding arranged over the first leg, a second primary winding arranged over the second leg, a first secondary winding arranged over the first primary winding, a second secon...	12/11/2001
5886476	Method and apparatus for producing electrical discharges A dual primary, single secondary ignition coil and control provides for establishment of a continuous extended arc across a pair of electrodes or dual arcs across the pair of electrodes. Continuous extended arcs are advantageous in extended burn applicati...	03/23/1999
5870012	Engine ignition coil device An engine ignition coil device which comprises a coil case composed of a first cylindrical case and a second case having a small tubular hole in its center portion and an upper external shoulder at its open end fitted in an open end of the first case to f...	02/09/1999
5806505	Ignition coil arragement for multicylinder internal combustion engines An ignition coil arrangement for a multicylinder internal combustion engine comprising at least one coil unit, which is able to be simply installed even under restricted spatial conditions. To this end, the coil unit, which contains a primary winding and ...	09/15/1998
5721524	Stator apparatus for small engine ignition system having improved grounding arrangement A improved stator apparatus for use in the ignition system of an internal combustion engine. The stator apparatus comprises a magnetically permeable core having a coil housing mounted to a leg portion thereof. A coil assembly including a voltage transform...	02/24/1998
5493496	Cylinder number identification on a distributorless ignition system engine lacking CID An apparatus for identifying the power stroke of a particular cylinder in a multi-cylinder engine which utilizes a wasted spark electronic distributorless ignition system but lacks a camshaft driven cylinder identification sensor, wherein a single sensor ...	02/20/1996
5156136	Ignition coil An ignition coil is provided with a primary coil which includes a distributed constant circuit including inductance and capacitance. A thyristor is connected in parallel to the primary coil, and a secondary coil is magnetically coupled to the primary coil...	10/20/1992
4998526	Alternating current ignition system An ignition system for a spark ignited internal combustion engine. The system can apply alternating current to the electrodes of a spark plug to maintain an arc at the electrodes for the desired length of time. The amplitude of the arc current can be vari...	03/12/1991
4947821	Ignition system An ignition system of AC continuous discharge type is disclosed which comprises a switching circuit for supplying the primary current of an ignition coil alternately in two directions and which is applicable to the internal combustion engine, for example....	08/14/1990
4770152	Ignition device for an internal combustion engine An ignition device for an internal combustion engine comprising an ignition coil adapted to produce a secondary reversible voltage, two wires commonly branched from the one end of the ignition coil, and two spark plugs connected to the wires. In each of t...	09/13/1988
4750467	Internal combustion engine ignition system An ignition system for a distributorless internal combustion engine ignition system. Parameters related to the energization of a given ignition coil are stored and later utilized to control the dwell time for this same ignition coil. Another coil is energ...	06/14/1988
4702221	Ignition device for an internal combustion engine In an ignition device for an internal combustion engine, the ignition device comprises: three closed circuits including first, second and third closed circuits, each circuit having at least a DC power source, a primary coil and a switching transistor; an ...	10/27/1987
4641626	Electronic ignition device for interval combustion engines A current-interrupting type ignition device having an ignition coil having a primary winding, a secondary winding and an auxiliary winding disposed in the primary circuit, the number of turns of the auxiliary winding being less than that of the primary on...	02/10/1987
4627407	Ignition coil for multi-cylinder internal combustion engine To reliably provide ignition energy only to specific spark plugs (11, 12; 14, 15) of a multi-cylinder internal combustion engine (ICE), a double-E core has primary windings (6, 8) located on a main or central branch, and separate secondary windings (10, 1...	12/09/1986
4599985	Ignition coil for multi-cylinder internal combustion engine To reliably provide ignition energy only to specific spark plugs (11, 12; 14, 15) of a multi-cylinder internal combustion engine (ICE), a double-E core has a main or common or central branch, and separate primary (6, 8) and secondary windings (10, 13) loc...	07/15/1986
4562823	Ignition device for internal combustion engine An ignition device for an internal combustion engine has a DC power source, first and second switching elements, a control signal generator for the switching elements, an ignition coil, and spark gaps. A first part of a primary coil of the ignition coil, ...	01/07/1986
4509495	Ignition coil for a multi-cylinder internal combustion engine To provide ignition energy to respective spark plugs of a multi-cylinder internal combustion engine (ICE) without a distributor, winding groups, each including a primary and secondary winding, are located on respective core portions of an iron core, which...	04/09/1985
4478201	Enhanced spark energy distributorless ignition system (A) A distributorless ignition system of an internal combustion engine has a supplementary spark energy module to increase spark energy. Two ignition coils each have secondary coils with split secondary center taps. Each of the primary windings is coupled to ...	10/23/1984
4462380	Enhanced spark energy distributorless ignition system A distributorless ignition system of an internal combustion engine has a supplementary spark energy module to increase spark energy. Two ignition coils each have secondary coils with split secondary center taps. Each of the primary windings is coupled to ...	07/31/1984
4448182	Ignition system for internal combustion engines An ignition coil includes a primary winding, an auxiliary primary winding and an ignition high voltage generating secondary winding which are wound on the same core. The primary current from the generating coil of a magneto flows to the base of a transist...	05/15/1984
4446842	Ignition system An ignition system for an internal combustion engine, wherein separate ignition transformers are mounted directly on respective spark plugs and an A.C. drive signal is applied to the ignition transformers sequentially in accordance with engine timing to f...	05/08/1984
4432323	Ignition system An ignition system for an internal combustion engine is disclosed which includes a separate ignition transformer for each spark plug in the engine. Each of the ignition transformers is enabled by means of signals produced by a crankshaft position sensor. ...	02/21/1984
4407259	Plasma ignition system for an internal combustion engine A plasma ignition system having a plurality of plasma ignition plugs eliminates a mechanical distributor for sequentially distributing plasma ignition energy into each plasma ignition plug. The plasma ignition system comprises: (a) a high DC voltage surge...	10/04/1983
4382430	Ignition system An ignition system for an internal combustion engine is disclosed which includes a separate ignition transformer for each spark plug in the engine. Each of the ignition transformers is enabled by means of signals produced by a crankshaft position sensor. ...	05/10/1983
4378779	Ignition system for internal combustion engines An ignition system for an internal combustion engine includes two power transistors respectively connected to opposite ends of the primary winding of an ignition coil to interrupt the primary currents which flow from a power source through the mid-tap of ...	04/05/1983
4365186	High energy modulation ignition system An ignition system (51-59, 60, Ql, Qn, 30) providing high modulation energy by means of modulator (30) is used to fire an igniter and effect total fuel burning without detonation. An extremely long ignition arc is initiated at an optimum timing angle (θ�...	12/21/1982
4349008	Apparatus for producing spark ignition of an internal combustion engine Apparatus for producing spark ignition of an internal combustion engine in which sparks at the spark plugs are initiated by a high voltage pulse of typically 20 KV and are sustained thereafter by a d.c. voltage of typically 3 KV. In one embodiment the d.c...	09/14/1982
4245609	Modulated AC ignition system An ignition system includes an alternating current power source which feeds a transformer having a primary winding, the primary winding being coupled to an electronic switch. The electronic switch intermittently interrupts current flowing in the primary w...	01/20/1981
4140946	Transient modulation ignition system An ignition system makes use of the Kettering transient voltage induced into the primary winding of an ignition transformer and utilizes a circuit which provides several voltage transients which are intermodulated to provide extremely high energy levels a...	02/20/1979
4117818	Ignition system for internal combustion engines with tapped ignition coil The primary of the ignition coil is tapped to provide two partial primary portions which are serially connected; during an initial current flow, only one partial portion has current flowing therethrough, the other partial portion being short-circuited. Wh...	10/03/1978
4114581	Pulse-supplied ignition system for internal combustion engines The ignition coil has a tapped primary winding which forms a first partial primary portion and a second primary portion, the second primary portion having an inductance which is high with respect to the partial primary portion. A supply circuit, including...	09/19/1978
3980922	Capacitance discharge type breakerless ignition system for an internal combustion engine A capacitance discharge type breakerless ignition system for an internal combustion engine, comprising ignition coil means including a main and an auxiliary primary coils and a secondary coil, capacitance means including two capacitances connected to said...	09/14/1976

PatentStorm

Bizarre Patents

PatentStorm News

Class 123/621 - Having an ignition coil with multiple primary or secondary windings