重庆理工大学学报2025，Vol.39Issue(7)：83-90,8.DOI:10.3969/j.issn.1674-8425(z).2025.04.011
离散缸体式燃油柱塞泵柱塞副特性分析
Piston pair characteristic analysis of discrete cylinder fuel piston pump
摘要
Abstract
Piston pumps are widely used in aerospace industry thanks to their advantages under high pressure and high speed.However,the kinematic viscosity of aircraft fuel is only 5％of hydraulic oil.The oil film bearing capacity of piston pair becomes weakened,which causes more severe wear.To reduce the dependence of piston pair on oil film bearing capacity,this paper proposes a novel fuel piston pump with discrete cylinder structure.First,the dynamic mathematical model is built according to its working principle.Then,the kinematic analysis based on a certain product is conducted,and the pressure pulsation in the cylinder chamber is obtained by simulation with AMESim.Next,the mechanical characteristics and contact stress of key parts in the pump are computed.Finally,the simulation results are compared with the traditional swash plate axial piston pump with the same specifications.Results show the mechanical characteristics of piston pair of the piston pump are more stable,the contact stress is lower,and the dependence on the oil film bearing capacity is down,making the pisoton pump more suitable for conditions with the medium of fuel.关键词
柱塞副/燃油柱塞泵/油膜承载能力/离散缸体Key words
plunger pair/fuel piston pump/oil film bearing capacity/discrete cylinder分类
机械制造引用本文复制引用
安高成,郭嘉琪,刘宝玉,王文伟,栗兰抗,马丽楠..离散缸体式燃油柱塞泵柱塞副特性分析[J].重庆理工大学学报,2025,39(7):83-90,8.基金项目
全国重点实验室开放基金项目(GZKF-202322) （GZKF-202322）
