| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To maintain the exhaust gas from the collected exhaust outlet at a high temperature and to reduce the flow resistance of the exhaust gas in the case of collecting exhaust from exhaust ports 6, 7, 8 provided by two for each cylinder to one collected exhaust outlet 10 inside a cylinder head 3. <P>SOLUTION: Inner side surfaces 13b, 14b of exhaust passages 13, 14 from an outer side cylinder at the cylinder row side are formed into a recessed and curved surface with the extension lines 13b', 14b' thereof intersect with extension lines 13a', 14a' of inner side surfaces 13a, 14a on the opposite side with respect to the cylinder row side out of the right and left inner side surfaces in the exhaust passage at a portion on the inner side with respect to the inner surfaces 10a, 10b of the collected exhaust outlet or the inner side surfaces 12a, 12b of the inner side surfaces of the exhaust pipe 12. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
