The invention discloses an all-terrain vehicle. The all-terrain vehicle comprises a frame; a vehicle body cover; a walking assembly; the power assembly comprises an engine; the engine comprises an air cylinder body, a cooling water jacket and a water jacket partition plate. The cooling water jacket is at least partially arranged in the air cylinder body. A first kidney-shaped hole and a second kidney-shaped hole are formed in the water jacket partition plate. The engine further comprises a crankshaft, the crankshaft basically extends in the preset direction, on a projection plane perpendicular to the preset direction, the projection area of the first kidney-shaped hole on the projection plane in the preset direction is S1, and the projection area of the second kidney-shaped hole on the projection plane in the preset direction is S2, the ratio of the projected area S1 of the first kidney-shaped hole to the projected area S2 of the second kidney-shaped hole is larger than or equal to 2.4 and smaller than or equal to 3.6. According to the cooling water jacket, the flow field of the cooling liquid in the cooling water jacket is optimized through a simple structure, the structure of the cooling water jacket is simplified, the problem that water flow in the cooling water jacket is distributed unevenly is solved, and the cooling effect on the engine cylinder body is improved.

    本发明公开了一种全地形车,包括:车架;车身覆盖件;行走组件;动力组件,动力组件包括发动机;发动机包括气缸体、冷却水套和水套隔板,冷却水套至少部分设置在气缸体中;水套隔板形成有第一腰型孔和第二腰型孔;发动机还包括曲轴,曲轴基本沿预设方向延伸,在垂直于预设方向的投影平面上,第一腰型孔沿预设方向在投影平面上的投影面积为S1,第二腰型孔沿预设方向在投影平面上的投影面积为S2,第一腰型孔的投影面积S1和第二腰型孔的投影面积S2的比值大于等于2.4且小于等于3.6。通过简单的结构实现冷却水套内冷却液的流场的优化,简化了冷却水套的结构,避免了冷却水套内水流分布不均匀的问题,提升了对发动机气缸体的冷却效果。


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    Titel :

    All-terrain vehicle


    Weitere Titelangaben:

    全地形车


    Beteiligte:
    LOU FENG (Autor:in) / LI HENG (Autor:in) / YANG CHEN (Autor:in) / LI DONGYUE (Autor:in)

    Erscheinungsdatum :

    2024-02-06


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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