Aircraft engine heat dissipation device, engine and unmanned aerial vehicle

The utility model belongs to the field of unmanned aerial vehicles, and discloses an aircraft engine heat dissipation device which can simply and conveniently adjust the working temperature of an engine, and comprises a heat dissipation fin, a heat dissipation plate and a heat dissipation plate, the flow deflectors are rotationally connected to the cooling fins, and the flow deflectors can change the flow direction of air flow which flows through the flow deflectors and is blown to the cylinder body; by applying the aircraft engine heat dissipation device, the working temperature of the engine can be simply and conveniently adjusted; the utility model further provides an engine and an unmanned aerial vehicle. 本实用新型在无人机领域，为能够简单方便地调整发动机工作温度，公开了一种飞行器发动机散热装置，包括：散热片，与缸体顶端连接；导流片，转动连接于散热片上，导流片能够改变流经导流片并吹到缸体的气流的流向；应用上述飞行器发动机散热装置能够简单方便地调整发动机工作温度；本实用新型还提供一种发动机及无人机。