Automotive Engineering

Automotive Engineering

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Description

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 edition. Excerpt: ...the magnets, passes the current to the metal contact in the center of the distributor face. From the latter point the high tension current passes to the distributor arm or brush, which is held in a holder. mounted on the distributor gear and' consequently rotates with the gear. Metal segments are imbeded in the distributor face, and as the distributor brush rotates, it makes contact successively with the segments in the distributor face. The segments are connected with the terminals on the front of the distributor face, and are connected to the spark plugs by wires. In the cylinder, the high tension current produces a spark which causes ignition and then returns through the engine to the magneto armature, thus completing the circuit. Safety Jump Gap. In order to protect the armature and other current carrying parts, a safety jump gap is provided. Under ordinary conditions, the current will flow its normal path to the spark plug, but if for any reason the electrical resistance in the secondary circuit is increased to a thigh points, as when a cable becomes disconnected or a spark plug gap too wide, the high tension current will discharge across the safety gap. The current should never be allowed to pass across the safety jump gap for any length of time, and the snapping sound by which the passage of the current across the safety gap may be noted should always lead to an immediate search for the cause of the trouble. The safety jump gap consists of a pointed metal electrode projecting from the mounting flange of the collecting ring brush holder, inside the shaft end plate hood, the tip of the electrode extending to within a short distance of the metal part of the conducting bar between the collecting ring brush holder and the magneto...show more

Product details

  • Paperback | 60 pages
  • 189 x 246 x 3mm | 127g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236815998
  • 9781236815996