燃油泵Fuel Pump

因馬達浸於燃油中，必須進行氣隙尺寸優化並將馬達特性優化，除要能有效抵抗燃油的黏滯阻力，還要讓操作電流控制在夠低的狀態。

Motor is immersed in fuel, it is necessary to optimize size of air gap and motor features to resist viscous resistance of fuel and control operation current to a low level.