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| Number | Title | Issue Date |
| 7950378 | Glow plug control unit and method for controlling the temperature in a glow plug A glow plug control unit is provided that includes a first switch for connecting power supply lines to a glow plug. The glow plug control unit further includes a voltage measurement unit for measuring the voltage at the power supply lines. A current measurement unit... | 05/31/2011 |
| 7644707 | Ignition device for an internal combustion engine An Ignition device for an internal combustion engine including a control device and an ignition coil which is feedable on its primary side by a voltage supply unit. The control device is provided to interrupt or reduce the voltage impressed on the primary side of th... | 01/12/2010 |
| 6297568 | Inductive ignition circuit An inductive ignition circuit (10) especially adapted for use with micro-turbine and other small-sized turbine engines such as are used in electric generators. The inductive ignition circuit (10) includes a flyback transformer (14), a drive circuit (16) f... | 10/02/2001 |
| 6147849 | Multichannel ignition circuit A multichannel ignition circuit for controlling a supply of current to a plurality of ignition coils for use with an internal combustion engine. Each of the ignition coils includes a primary coil and a secondary coil. A controller generates the plurality ... | 11/14/2000 |
| 6131555 | System for controlling ignition energy of an internal combustion engine A system for controlling ignition energy of an internal combustion engine includes an ignition coil having a primary coil and a secondary coil coupled to first and second electrodes of an ignition plug defining a spark gap therebetween, wherein the primar... | 10/17/2000 |
| 5988130 | Electrical system for marine engine The present invention is an electrical system for an engine of the type used to power a watercraft. A primary power supply of the system is connected to a main circuit by a feed circuit. A main switch controls the flow of power from the primary power supp... | 11/23/1999 |
| 5513618 | High performance ignition apparatus and method Apparatus and method for a plasma discharge for ignition in an internal combustion engine. A digital electronic system controls ignition performance and can provide an ignition discharge throughout an entire power stroke of a piston in a cylinder. The dis... | 05/07/1996 |
| 5404859 | Ignition system for internal combustion engine An ignition system for an internal combustion engine capable of starting the engine even when a battery voltage is insufficient for ignition. A secondary voltage feedback circuit connected to a secondary winding of a transformer constituting a part of a D... | 04/11/1995 |
| 5215066 | Ignition apparatus for an internal combustion engine An LCDI-type ignition apparatus for an internal combustion engine includes first and second capacitors connected to an ignition coil and a voltage source for generating a charging voltage for the capacitors. The first capacitor is for producing an initial... | 06/01/1993 |
| 5107392 | Final ignition stage of a transistorized ignition system The invention relates to a final ignition stage of a transistorized ignition system (1) having a Darlington transistor (DT), in the collector-emitter circuit of which the primary coil current (ISP) of an ignition coil (ZS) flows and which is co... | 04/21/1992 |
| 5060623 | Spark duration control for a capacitor discharge ignition system An apparatus is provided for controlling ignition in an internal combustion engine having N cylinders and a capacitor discharge ignition system. The capacitor discharge system includes an ignition capacitor which is maintained at a predetermined electrica... | 10/29/1991 |
| 4799471 | Electronic system for controlling the ignition of an internal combustion engine, particularly for motor vehicles A control circuit which includes a circuit for regulating the time taken to desaturate the switching transistor. This regulating circuit is arranged to control the time for which the transistor is conductive, so that the desaturation time of the transisto... | 01/24/1989 |
| 4624234 | Electronic ignition timing adjusting system for internal combustion engines An ignition timing adjusting system for an internal combustion engine wherein the output of a magneto-type generator driven by the engine is used as a power source to generate a constant voltage output through a voltage regulator circuit, and a rotational... | 11/25/1986 |
| 4522185 | Switching electronic ignition This electronic ignition system comprises a unique combination of a high voltage switching regulator to provide substantially higher voltage to the ignition coil and a solid state power switch to produce a constant high energy ignition current of multiple... | 06/11/1985 |
| 4492213 | Ignition system for internal combustion engines An improved ignition system for internal combustion engines including a constant current control circuit for effecting constant current control of an ignition coil primary current, further includes a compensating circuit for controlling a reference voltag... | 01/08/1985 |
| 4390829 | Shunt voltage regulator circuit A series shunt regulator circuit suitable to be fabricated in monolithic circuit form for providing a regulated output voltage and having a low input to output voltage differential thereacross. The regulator is comprised of a passive PNP current mirror ci... | 06/28/1983 |
| 4303048 | Engine rotation speed control system An engine rotation speed control system for automotive vehicles having internal combustion engines comprises a solenoid actuated valve having a solenoid coil for controling the flow of air through a throttle bypass passage to the intake manifold during en... | 12/01/1981 |
| 4293797 | Inductive-capacitive cyclic charge-discharge ignition system An inductive-capacitive cyclic charge-discharge ignition system includes an ignition transformer primary winding in parallel with a capacitor and fed by an alternating current source providing a plural number of repetition cycles during each igniter firin... | 10/06/1981 |
| 4106461 | Reflective ignition timing process The subject of this disclosure is a process through which the timing function is performed for electronic ignition systems. Being specifically proposed for motorcycle use, it is a unique process intended to eliminate the shortcomings of those techniques i... | 08/15/1978 |
| 4106462 | Ignition system control circuit The invention discloses an ignition system control circuit which may be mounted within a distributor housing such as is used with internal combustion engines. The ignition system control circuit is coupled to a direct current source and appropriately conn... | 08/15/1978 |
| 4084567 | Contactless ignition system for internal combustion engine A contactless ignition system for an internal combustion engine responds to alternating current ignition signals produced in timed relationship with the engine. A primary winding of an ignition coil and a collector-emitter path of a switching transistor a... | 04/18/1978 |
