International Journal of Science, Engineering and TechnologyAuthors: Sameer Ahmed Khan, Dr. P Rama Lakshmi
Abstract: High-speed external gear pumps play a crucial role in aerospace systems, particularly in lubrication, fuel delivery, and hydraulic actuation systems. Their compact size, reliability, and ability to operate at high rotational speeds make them highly suitable for demanding aerospace environments. This paper presents a comprehensive review of the design aspects and performance characteristics of high-speed external gear pumps. The study focuses on key parameters such as gear geometry, material selection, clearance optimization, and operating conditions that significantly affect pump efficiency and durability. Additionally, the impact of leakage losses, cavitation, thermal effects, and fluid properties on performance is discussed. Advanced computational tools such as Computational Fluid Dynamics (CFD) and Finite Element Analysis (FEA) have enabled better understanding of internal flow and structural behavior. Challenges such as noise, vibration, and pressure fluctuations are also addressed. The paper concludes with future research directions including additive manufacturing, smart monitoring systems, and advanced coatings for improved performance.
