Platts Power Volume 43

Platts Power Volume 43

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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. 1916 edition. Excerpt: ...time available for burning the fuel charge at full load will not exceed 35 deg. of crank travel. In the case of an engine running at 200 r.p.m., this is equivalent to l/u of a second. During this time the oil must enter the cylinder, come in contact with the necessary oxygen and be consumed. There must of necessity be some excess oxygen to effect complete combustion of the fuel. The effect of overloading is to increase the fuel charge so that the amount is greater than can be burned clean with the air that is available. The result is that combustion continues after expansion has begun, and if the overload is great, it may even be that the charge is still burning when the exhaust valve is opened. The temperature of the exhaust gases are then so far above normal that the valve becomes distorted with the heat, causing leaks which still further aggravate the trouble. If an engine is allowed to run with a leaking valve, it is only a question of a few hours until both valve and seat are cut out by hot gases blowing through at high velocities. The secret of success in operating a Diesel engine is taking care of these relatively small Items. The owner who condemns a Diesel engine is generally careless, allows the engine to get out of order in some small particular, and then complains about unreliability, high cost of repairs, etc. FIELD OF THE DIESEL ENGINE The Diesel engine has a fairly well-defined field in which it will have no competitor when its merits are known and appreciated. This is the relatively small plant which, when steam operated, is usually ineliicient. In generating electric current for a small town savings are effected that would justify the installation of the engines if the cost were two or three times what it actually is. In...
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Product details

  • Paperback | 886 pages
  • 189 x 246 x 44mm | 1,551g
  • United States
  • English
  • black & white illustrations
  • 1236898125
  • 9781236898128