150mL小型越野摩托车专用发动机的设计

Design of the 150 mL Special Engine for Small Cross-country Motorcycle

小型越野摩托车对发动机、车架等重要零部件要针对越野极限运动功能进行设计,发动机排量也随着比赛级别的不断提高而逐渐增大;设计时要求发动机质量小、功率大,发动机起动要迅速,维修时拆卸要方便,外观造型要动感,运动味足。

The key parts for a small cross-country motorcycle such as engine, frame, etc, should be designed aiming at the extreme cross country service functions. The engine displacement will become bigger and bigger with the raise of the match grade. So more attention should be paid to lighter engine, greater power, quicker start of engine, easy maintenance, dynamic styling and enough sense in sport.