Automotive Wiring Manual

Automotive Wiring Manual

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 Excerpt: ...is employed for this work, as further described herein. Inasmuch as both the primary and secondary coils are wound on the same core, the effect of the change in the magnetism of the primary has the same result in the secondary in that a voltage is induced. The coil relationship is such that this secondary voltage is very high and forces itself across the gap of the spark plug, causing the ignition spark. IGNITION The internal combustion motor derives its power from the expansive force developed by the charge of gas which is compressed in the explosion chamber being suddenly raised from a low to a high temperature. To raise the temperature of this gas one must supply heat. This heat is generated by the burning of a part of the gas (gasoline) which is compressed. As in the case of any burning material, a definite length of time is required, depending upon the quantity, before the material is entirely consumed. This last statement must be borne in mind at all times when considering ignition problems. To start the burning of any combustible substance an igniting flame or its equivalent, the heat value of which is measured by the inflammability of the substance, must first be applied. This igniting flame, in the case of the gas in an automobile engine, is supplied by the spark which occurs between the electrodes of the spark plug. It is very essential that this spark occur at the proper time relative to the position of the piston in the cylinder as well as that the valves be in the proper position. The gas must be compressed to its highest point when the combustion is completed. Were there no time element to be considered in the burning of the gas, ignition could take place when the piston is at its highest point. However, in order to have the motor operate at i...This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed.


Title:Automotive Wiring Manual
Author: Harry Lorin Wells
Publisher: - 2012-05-14
ISBN-13:

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