| 摘要 |
PURPOSE:To simplify the piping work for cooling water in a water-cooled multi- cylinder engine for a motor cycle, by arranging water passages for respective cylinders in the manner that they are branched from a cooling-water chamber which is connected to a pump for pumping out cooling water from a radiator via a single main pipe. CONSTITUTION:Water passages for respective cylinders 15, 16 of a water-cooled multi-cylinder engine 13 for a motor cycle are connected to a cooling-water chamber consisting of an intermediate pipe 24 via subsidiary pipes 26, 27. A discharge pipe portion 20b of a cooling-water pump 20 is connected to the cooling-water chamber 24 via a main pipe 23 having a large diameter and a connecting pipe 28 made of rubber or the like. Therefore, high-temperature cooling water discharged from cooling-water take-out pipes 32, 33 of respective cylinders 15, 16 is carried to the cooling-water chamber 24 via the cooling-water pump 20 after being cooled by a radiator 17 and then distributed to the front and rear cylinders at a proper rate of distribution. |
