Altitude Effects on 2-Stroke-Cycle Automotive Diesel Engines 510205

A RELATIVELY easy way to correct the performance of 2-stroke diesel engines for altitude conditions is reported here.
Briefly, the method consists in:
  1. 1.
    Obtaining the complete performance of the engine at one air density, say, sea-level conditions.
  2. 2.
    Plotting constant-speed fuel fishhook curves, which must be carried out to the point where power begins to fall off at overrich air/ fuel ratios.
  3. 3.
    Developing charts similar to that shown as Fig. 14, which contains a complete portrayal of performance for the CM 6-71 engine at 2000 rpm, both at sea level and at altitude.


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