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

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

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...
View Full Document

## 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.

Ask a homework question - tutors are online