romising will be consideredunder these three heads. Development of Belter Engines In the chart developments of better engines areclassed under four main heads. The first two applyprimarily to improvements in the present type ofconstant volume or so-called Otto cycle engines, whilethe second apply… … FACTORS TENDING TOWARD BETTER FUEL ECONOMY Better UtilizationIn Present Engines
Automobiles · Aeronautics
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