Valve timing of engines having intake pressures higher than exhaust

Edward S. Taylor
naca-tn-405
Feb 1932


With the wide acceptance of the gear-driven supercharger as standard equipment for aircraft engines, it is so easy to obtain almost any desired increase in power by increasing the supercharger gear ratio, that the problem of increasing power has been merely one of making an engine that will stand up under the conditions of operation. Unfortunately, the problem of obtaining reasonable fuel consumption with such boosted engines is not so simple.

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