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The ignition coil is a transformer. The primary winding (called the low-tension winding in early texts) is connected to the battery voltage when the points are closed. Due to the inductance of the coil, the current in this circuit builds gradually. This current creates a magnetic field in the coil, which stores a quantity of energy.
Later patent applications to the US Patent Office make reference to the "Kettering ignition system". This type of ignition system was used on automobiles, trucks, lawn mowers , tractors, chainsaws , and other gasoline-powered machinery with great success for many decades until the development of capacitive-discharge ignition systems.
Kettering provided significant funding for the company in its early years, particularly after 1916, when Kettering sold his firm, the Dayton Engineering Laboratories Company (Delco), to United Motors Company for $2.5 million. Kettering continued to serve as president of Flxible until he became chairman of the board in 1940, a position that he ...
Some references that an ignition coil is a transformer: Within an automobile's ignition system, an ignition coil plays an essential role in transforming the battery's 12 volts to the 20 or 30 thousand volts or more needed to spark the spark plugs., Therefore, the voltage is transformed and multiplied., The coil is a simple device -- essentially ...
As batteries became more common in cars (due to the increased usage of electric starter motors), magneto systems were replaced by systems using an induction coil.The 1886 Benz Patent-Motorwagen and the 1908 Ford Model T used a trembler coil ignition system, whereby the trembler interrupted the current through the coil and caused a rapid series of sparks during each firing.
An ignition coil is used in the ignition system of a spark-ignition engine to transform the battery voltage to the much higher voltages required to operate the spark plug(s). The spark plugs then use this burst of high-voltage electricity to ignite the air-fuel mixture. The ignition coil is constructed of two sets of coils wound around an iron ...
Ignition system; 1 ignition coil, distributor, low voltage 1a, 1b distributor with two separate circuits 2 breaker points magneto ignition 4 coil, distributor, high voltage 4a, 4b distributor with two separate circuits, high voltage 7 terminal on ballast resistor, to distributor 15 battery+ from ignition switch 16 15a
Leaving NCR in 1909, Kettering focused on final development of this ignition set and demonstrations were favorably received. In 1909, when Henry Leland of Cadillac ordered 5,000 ignition sets, Deeds and Kettering formed the Dayton Engineering Laboratories company. The ignition system was introduced on the 1910 Cadillac.
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