Matches 51 - 100 out of 235 < 1 2 3 4 5 >


Match Document Document Title
4552119 Magnetic pulse timer  
Improved magnetic pulse timer components provide increased timer voltages with steeper bipolar waveforms. Such improvements are residual in terms of a permanently magnetized timer rotor (30, 40,...
4537175 Bipolar magnetic pulse activated ignition system  
An ignition system for a fuel burning engine has a transformer with a primary winding (L1) and a secondary winding (L2). A magnetic pulse time (20) provides a bipolar signal to the input circuits...
4509496 Ignition circuit for internal combustion engine having alternately operable high and low speed control devices  
An ignition circuit for an internal combustion engine includes an ignition coil having a primary winding which is controlled by a power transistor. The lower transistor is controlled by either a...
4501256 Solid state magneto ignition switching device  
A magnet rotating synchronously with an internal combustion engine magnetically couples periodically with a stator having primary and secondary windings to induce a voltage in the primary winding....
4495931 Engine ignition system  
An internal combustion engine ignition system includes an output switching transistor (7), the emitter-collector path of which is in series with the primary winding (5) of an ignition coil (6). To...
4491122 Anti-reverse operation of solid state inductive magneto  
Solid state inductive magneto ignition system with antireverse running circuit has a switching transistor connected in circuit with the primary of an ignition coil. A control circuit is connected...
4461265 Ignition timing control system for internal combustion engine  
An ignition timing control system for an internal combustion engine comprising a circuit for generating a reference ignition signal in synchronism with the engine, a circuit for generating a...
4408592 Ignition system for internal combustion engines  
An ignition system for internal combustion engines of the type in which after the energizing current flow to the primary winding of an ignition coil has been interrupted and an ignition spark...
4406273 Ignition system for internal combustion engine  
An ignition system for the internal combustion engine comprising a high voltage circuit for generating a spark, having the primary and secondary windings. In response to a first signal, the...
4382431 Circuit for decreasing oscillatoins in the primary winding of an ignition coil of an internal combustion engine  
Oscillations which would normally occur when the current in the primary winding of an ignition coil is limited to a predetermined value prior to ignition are suppressed by use of a feedback...
4377151 Bipolar activated magnetic pulse timer  
A bipolar activated magnetic pulse timer (50, Qa, Qb) is shown for an ignition system (Q1, Q2, Qn, Qp, 80, 90, 40, 40a) of a fuel burning engine. Such system includes a pair of semiconductor...
4361129 Ignition system for internal combustion engines  
A contactless ignition system for internal combustion engines of the type including an ignition coil with two primary windings whose primary currents are alternately switched on and off by two...
4359038 Electronic ignition-coil control device for an internal combustion engine  
The primary winding of an ignition coil is placed in series with the collor of a switching transistor. In order to protect the transistor against overvoltages, the collector is also connected to a...
4342304 Contactless igniton circuit for internal combustion engines  
The present invention relates to a contactless ignition circuit for internal combustion engines wherein a primary short-circuiting current flowing through the primary winding of an ignition coil...
4328782 Ignition system for internal combustion engines  
In order to reduce the amount of ignition energy supplied to an ignition coil during low speed operation of the engine, an electronic circuit is provided to regulate the open time of the ignition...
4320735 High-frequency continuous-wave ignition system  
An ignition system that develops continuous-wave high-frequency spark signals. It employs a square wave oscillator which uses a unitary magnetic circuit and includes a control winding that acts to...
4308848 Ignition system for an internal combustion engine  
To improve an ignition system as described in U.S. Pat. No. 4,176,645, Jundt et al., in which a threshold switch is provided which controls current flow through the ignition coil, the turn-ON...
4304212 Optoelectronic ignition device for an internal combustion engine  
An optoelectronic ignition device for an internal combustion engine requiring a single wire connection.A light-emitting diode, a photo-detector 2 and a first resistor 9 are energized in series,...
4285322 Apparatus for controlling an ignition coil of an internal combustion engine  
An apparatus for controlling an ignition coil of internal combustion engines including a power transistor connected to the primary winding of an ignition coil for controlling the energization and...
4265201 Stratified fuel ignition system including humid air injection  
An ignition system having first and second modes of operation is part of an engine which develops motive power by burning fuel received in a main combustion chamber. An auxiliary combustion...
4262647 Contactless ignition system for internal combustion engines  
A contactless ignition system for an internal combustion engine including an ignition signal generator having two pickup coils which are connected in series or parallel and oppositely in polarity...
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...
4233951 Ignition circuit for internal combustion engines  
An improved ignition circuit for internal combustion engines is described herein, in which a diode is connected in parallel to a primary winding of an ignition coil of a magneto, and a composite...
RE30418 Opto-electronic ignition systems for internal combustion engines  
An opto-electronic ignition system for an internal combustion engine in which radiation falls on to and is cut off from a photo-transistor in timed sequence with the engine, and in which between...
4207852 Non-contact ignition system for an internal combustion engine  
The present invention discloses a system which utilizes the storage action of capacitors and the characteristic of the turn-off operation due to a potential difference between the base and emitter...
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...
4201173 Ignition apparatus for multi-cylinder reciprocating internal combustion engine  
An ignition apparatus for a multi-cylinder reciprocating internal combustion engine has a plurality of spark plugs arranged in each of the cylinders with each spark plug having a high voltage...
4191912 Distributorless ignition system  
A distributorless ignition system has an alternating current power source for providing power to fire the igniters. The alternating current power source is coupled through a capacitor to a...
4191911 AC power generation control system  
An alternating current power source which is generally used to feed an ignition transformer primary winding may be electronically controlled so as to rapidly activate and deactivate the power...
4188930 Breakerless flywheel magneto ignition system  
In a flywheel magneto ignition system, opposite terminals of the primary winding are respectively connected with the collector and emitter terminals of a transistor device. A biasing coil,...
4176644 Engine ignition system with variable spark internal duration  
An RC circuit branch determines the duration of the period for which the primary circuit of a spark coil remains interrupted after the main peak of the spark discharge in the secondary circuit...
4167927 Contactless ignition control system with a dwell time control circuit for an internal combustion engine  
In a contactless ignition control system having a dwell time control circuit for an internal combustion engine, there is provided a speed responsive bias voltage circuit, a bias voltge switching...
4155340 Solid state ignition system  
A device for creating a sparking voltage across the electrodes of a spark plug of an internal combustion engine comprising a rotatable member carrying a permanent magnet having an outwardly...
4140947 Alternator energized ignition system  
An alternator energized ignition system is provided for producing a transient ringing waveform forced by high voltage output of the alternator. A configuration of this system also provides for...
4130101 Transistorized ignition system for internal combustion engines  
To provide for gradual turn-off of an ignition coil current control transistor, a control capacitor which provides turn-off current has its charge state changed gradually by means of an auxiliary...
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...
4115758 Visual test indicator for ignition systems  
The proper operation of the ignition system of an internal combustion engine is determined by a visual test indicator which is built into the ignition circuitry. The indicator is energized...
4112904 Electromagnetic type contactless ignition apparatus for internal combustion engine  
The output signal induced in an electromagnetic pickup and having a frequency corresponding to the rotational speed of an internal combustion engine is applied to the input of an input transistor....
4111178 Ignition system for use with fuel injected-spark ignited internal combustion engines  
The valve seat and cooperating movable valve member of each fuel injector of an associated fuel injected-spark ignited internal combustion engine are connected in series with a resistor across a...
4099509 Ignition systems of current interruption type for internal combustion engines  
An ignition system of a current interruption type comprises an a.c. power source and an ignition coil, the primary winding of which is connected to the a.c. power source through a controllable...
4090488 Ignition circuit for the internal combustion engine and premature ignition prevention method in the ignition device  
This invention relates to a method for preventing premature ignition in an ignition device for the internal combustion engine including a non-contact type ignition circuit for the internal...
4088107 Electronic ignition control device for a motor vehicle  
An electronic ignition control device employs two switch devices (e.g. mechanical contact breakers) operating at different instants to control initiation and interruption of current flow in the...
4084566 Electronic breaker points for the ignition system of a gasoline engine  
Electronic breaker points for the ignition system of a gasoline engine employs an optical circuit, chopping wheel, and pulse shaping circuit to replace the mechanical breaker points normally used...
4066059 Fuel injection nozzle valve and ignition system  
A nozzle valve of the type for fuel injection in an internal combustion engine. It has a needle and a valve seat adjacent to one end of the needle, plus a spring to bias the needle against the...
4057740 Constant duty cycle monostable  
A circuit that functions as a monostable multivibrator and has a constant duty cycle regardless of the frequency of the input trigger signal is particularly useful in electronic ignition systems...
4020816 Electronic ignition device for an internal combustion engine  
An electronic ignition control device for an internal combustion engine includes a power amplifier which controls current through an ignition coil and a triggering circuit for the power amplifier....
4019484 Ignition apparatus for internal combustion engine  
An ignition apparatus for an internal combustion engine, wherein the energization time of the primary winding of the ignition coils is maintained constant regardless of the engine revolutions, is...
4016433 GTO circuits  
The current through the main conduction path of a gate-turn-off silicon controlled rectifier (GTO) charges a capacitor in the cathode circuit of the rectifier. The GTO is turned off by providing a...
4006724 Arrangement for mounting electronic circuit boards on an engine-air intake structure  
An electronic engine control system for an internal combustion engine has at least a portion of its circuitry mounted on circuit boards which are disposed generally in the path of induction air...
3963015 Simplified automatic advance ignition system for an internal combustion engine  
In an ignition system in which the spark coil is wound right on the magneto armature and the spark is produced by electronic interruption of a short circuit across the primary winding, the first...

Matches 51 - 100 out of 235 < 1 2 3 4 5 >