s, the heat flow would be about 94 per centin favor of the aluminum.. Since the aluminum piston-headis usually made thicker than that of cast iron, the amountof heat available would be approximately the same in bothcases. It appears that the two pistons are on a par, exceptthat heat flow is greatly… … EXHAUST GAS INLET Fig. 5—Type of alum- Fig. 6—Transverse sec-mum piston in which tion of intake pipe,clearance increases as shorving exhaust heatedthe piston is heated ribs for vaporizing fuel expand as far as cylinder clearance is concerned? Thisviewpoint changed the complexion of the whole…
Automobiles · Aeronautics
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