| 摘要 |
PURPOSE:To improve a cooling characteristic of both front and rear cylinders and form an engine to compact size in the longitudinal V-engine mounted to an autobicycle, by cooling the front cylinder with air while the rear cylinder with water and arranging a cooling water radiator to the upper part of the front cylinder. CONSTITUTION:A V-engine mounted to an autobicycle is constituted by an air- cooled front cylinder 1a provided with many cooling fins to the periphery and a water-cooled rear cylinder 1b connected to a radiator 6 with circulative pipes 6a, 6b. The radiator 6, being of capacity only required about one half of the full cylinder water cooled type, can be constituted to compact size and housed in a narrow space in the upper of the cylinder 1a, and a cooling characteristics of the both front and rear cylinders can be improved without causing the necessity for increasing overall length of the engine. |
