Design a close-coiled helical spring of silicon-manganese steel for the valve of an ic engine capable of exerting a net force of 65n when the valve is open and 54n when the valve is closed. The internal and external diameters are governed by space limitations, as it has to fit over bushing of 19 mm outside diameter and go inside a space of 38 mm diameter. The valve lift is 6 mm.
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open-coiled helical spring of mean diameter D, number of coils N and wire ... A closed coil helical spring has 15 coils. .... Published on Jan 13, 2017. S.
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