Aviation engines; design--construction--operation and repair; (1919)
Pagé, Victor Wilfred, 1885-1947 · New York, The Norman W. Henley publishing co. · leaf 283
tric efficiency of a motorprovided with four valves in each cylinder instead of 284 Aviation Engines but two. This principle was thoroughly tried out in rac-ing automobile motors, and is especially valuable in per-mitting of greater speed and power output from simplefour- and six-cylinder engines.… … One LargeValve Fig. 113.—Diagram Comparing Two Large Valves and Four Small Onesof Practically the Same Area. Note How Easily Small Valves areInstalled to Open Directly Into the Cylinder. as shown in diagram at Fig. 113, it is difficult to havethem open directly into the cylinder, and pockets…
Airplanes
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