外文翻译-油压泵.doc

本科生毕业设计(论文)
外文翻译
原文标题
Oil pressure pump cover
译文标题
油压泵简介
作者所在系别
机械工程系
作者所在专业
机械设计制造及其自动化
作者所在班级
作者姓名
作者学号
指导教师姓名
指导教师职称
完成时间
2014
年
5
月
20
译文标题
油压泵
原文标题
Oil pressure pump cover
作者

译名
国籍
原文出处
原文
A hydraulic pump is a mechanical device which converts mechanical energy into hydraulic specifically ,a pump converts the ic(moving) energy of a rotating shaft into the ic energy of fluid flow. The fluid flow also has potential energy that allows it to e the resistance of the system to fluid flow .Remember that a pump provides the force produce flow and transmit power . Hydraulic pressure is caused by the load on the system and by the resistance of the hydraulic system to fluid flow.
When operating , a hydraulic pump performs two functions. First, it creates a partial vacuum at its inlet ,permitting the atmospheric pressure in the fluid reservoir to push the hydraulic fluid through the inlet strainer and line into the pump .Second, its mechanical action delivers the fluid to its outlet and into the hydraulic systems, as shown in -1. As the fluid leaves the pump, it encounters the working pressure in the system. This pressure is produced by the pressure regulating valve, the system work load ,and flow losses in the hydraulic tubing
A pump is classified on the basis of the physical arrangement of its pumping mechanism and its basic pri