5 t t 45 312 106 zp w t2 245 70 2 2 z p w

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Unformatted text preview: he various parts of the crankshaft are designed as discussed below: and HR2 = (a) Design of crank web We know that bending moment due to the tangential force, 180 d 3 = 1.8 × 106 N-mm MbT = FT r − 1 = 30 × 10 150 − 2 2 Internal Combustion Engine Parts 1187 n ∴ Bending stress due to the tangential force, σbT 6 × 1.8 × 106 M bT 6 M bT = = = 70 (245) 2 Z t.w 2 ... (∵ Z = 1 × t .w2 ) 6 = 2.6 N/mm 2 or MPa Bending moment due to the radial force, MbR = FR (0.75 lc + 0.5 t) = 33 × 103 (0.75 × 92 + 0.5 × 70) = 3.43 × 106 N-mm ∴ Bending stress due to the radial force, σbR = = MbR 6 MbR = Z . wt2 6 × 3.43 × 106 245 (70) 2 ... (∵ Z = 1 × w.t 2 ) 6 = 17.1 N/mm2 or MPa Carburettor High tension lead from distnbutor to spark plug Rocker shaft Valve spring Spark plug cover Inlet Manifold Exhaust Manifold Combustion chamber Distributor Push-rod Distick Tappets Camshaft Starter motor Oil pump housing Flywheel Oil Filter Oil suction filter Schematic of a 4 cylinder IC engine 1188 n A Textbook of Machine Design We know that dir...
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This note was uploaded on 09/30/2012 for the course MECHANICAL 403 taught by Professor A.thirumoorthy during the Spring '11 term at Anna University Chennai - Regional Office, Coimbatore.

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