The capability to displace volume is crucial in designing an external gear pump (EGP). Therefore, this study presents an optimization approach to the EGP. Through this systematically process, the design parameters of the spur gears in the pump with a larg The capability to displace volume is crucial in designing an external gear pump (EGP). Therefore, this study presents an optimization approach to the EGP. Through this systematically process, the design parameters of the spur gears in the pump with a larg