A four cylinder in-line engine running at 2000 rpm is having crank and connecting rod lengths of 60 mm and 240 mm respectively. The mass of reciprocating parts of each cylinder is 2 Kg. The cylinders are spaced 160 mm apart and the cranks appear at 90˚ intervals in an end view. If the firing order of the engine is 1-4-2-3,
determine: (i) the unbalanced primary and secondary forces, and
(ii) the unbalanced primary and secondary couples.
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he mass of reciprocating parts of each cylinder is 2 Kg. The cylinders are spaced 160 mm apart and the
cranks appear at 90˚ intervals in an end view. If the firing order of the engine is 1-4-2-3,
determine: (i) the unbalanced primary and secondary forces, and
(ii) the unbalanced primary and secondary couples.
Explanation:
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