| 摘要 |
<p>PURPOSE:To obtain a suction inertial effect sufficiently, and to improve the engine output, by providing the front engine block and the rear engine block having crankshafts orthogonal to a car body, in a V-shape, arranging carburetters between both blocks, while making the center lines of reed valves and cylinders offset to the axial direction of the crankshafts. CONSTITUTION:The front engine block 25F which consists of the first and the second cylinders 24a and 24b; and the rear engine block 25R which consist5 of the third and the fourth cylinders 24c and 24d; are provided in V-shape each other, and set in the longitudinal direction of a car body. Crankshafts 26a and 26b drive a pilot shaft. Reed valves 28a are provided to the opposing surfaces of the cylinders respectively, and the center lines CL1 of the reed valves 28a, and the center lines CL2 of the cylinders are offset r to the axial directions of the crankshafts 26a and 26b, and they are combined to carburetters 28b through intake pipes 28 respectively. By such a constitution, the forms of the suction passages in the intake pipes 28c are made smooth, and a suction inertial effect can be obtained sufficiently.</p> |
