Patent ID: 6158402
Filing Date: 2000-12-12
Classification: F02B,F02F,F16C

Abstract:
An engine block structure in an in-line type multi-cylinder engine, comprising a cylinder block, a cylinder head, and a crankshaft, wherein pistons are incorporated into a corresponding plurality of cylinders provided in series in said cylinder block from a side of a crank chamber, wherein said cylinders are arranged to overlap at least partially with each other as viewed in an axial direction of said crankshaft, and cylinder axes of two adjacent ones of said cylinders extend in such directions that the cylinder axes are gradually spaced apart from each other as proceeding from a valve operating chamber toward the crank chamber as viewed from said axial direction of said crankshaft wherein the cylinder axes of the two adjacent cylinders intersect each other on an axial center of a valve operating cam shaft of a valve operating mechanism provided in said cylinder head.