The effect of changes in compression ratio upon engine performance (1925)
NASA Technical Reports Server (NTRS) · leaf 14
inclines one to the behef that the differences noted above are due to other causes than the differences in compression ratio. When one appreciates that a change m jacket water temperature of 20° C. often changes the friction horsepower 15 per cent it is easy to imderstand how changes in friction of… … Barometric pressure in cm of Hg. Baromefric pressure in cm ofHg. Fio. 19.—Tests 186 and 187. Engine: Bore, 5.51 inches; strote, 5.91 Fig. is.—Tests 183 and 1S4. Engine: Bor >, 8.625 inches; strote, 7.5 inches; 8 cylinders inches; 6 eylindets one compression ratio and with another. Figures 18 and 19…
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