TUBULAR BODY FOR ROCKER SHAFT

摘要

PROBLEM TO BE SOLVED: To manufacture a tubular body for rocker shafts of an internal combustion engine having a plurality of flow passages without fear of leakage of a circulating fluid between respective flow passages at a low cost and by lightening the weight in a relatively simple manufacturing stage. SOLUTION: This tubular body (10) has a plurality of internal spaces (11a, 11b) each of which is divided from the other and extended along the axial line and is joined and formed by bending a metal plate and welding or brazing its abutting parts (13a, 13b). COPYRIGHT: (C)2004,JPO