Air-fuel ratio in different cylinders of same engine shown to vary from 11.56 to 16.01; anti-knock rating of fuel in different cars may vary 16 to 18 octane numbers; composition of fuel in different cylinders varies widely, affecting anti-knock ratio; differences in method for heating manifold mixture change air-fuel ratio and knock tendencies; apparatus has been developed for determining spark timing exactly, using neon tube and photographic film drum arrangement; volatility of reference test fuels should approximate that of average commercial gasoline. (see also Nat Petroleum News v 30 n 4 and 6 Jan 26 1938 p R31-2 and R34-5 and Feb 9 p R51-2, R54, R56 and R58-62; Oil and Gas J v 36 n 35 Jan 13 1938 p 53-4, 56-8 and 60)
Carburetion, manifolding and fuel antiknock value
Soc Automotive Engrs -- J
Society of Automotive Engineers -- Journal ; 42 , n 4
1938
16 pages
Article (Journal)
English
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