| 摘要 |
<p>PURPOSE:To achieve just enough cooling at each cylinder in equalizing a quantity of cooling water passing in and around each spot of respective cylinders by setting up each of both cooling water return and outlet ports as being sorted to both front and rear opposite sides of this multicylinder engine. CONSTITUTION:A water pump house 12 and a cooling water return port 5 both are formed in a cylinder jacket 1. In addition, a lower tank 13b of a radiator 4 is interconnected to the cooling water return port 5 via a cooling water inlet pipe 14 and the water pump house 12 in order. Likewise, a cooling water outlet 6 is formed in a head jacket 2. In succession, this cooling water outlet 6 is interconnected to an upper tank 13a of the radiator 4 via a cooling water outlet pipe 15. With this constitution, cooling water taken in from the cooling water return port 5 passes through the cylinder jacket 1, a water port 3 and the head jacket 2 in order toward the cooling water outlet 6 at the longitudinal opposite side. Therefore, a quantity of cooling water passing in and around each cylinder is equalized, so that neither-more-nor-less cooling is thus realizable at each cylinder.</p> |
