由液压总线和开关液压源构成的新原理液压系统  

NEW HYDRAULIC SYSTEMS MADE UP OF HYDRAULIC POWER BUS AND SWITCH- MODE HYDRAULIC POWER SUPPLIES

作　　者：顾临怡[1] 邱敏秀[1] 金波[1] 曹建伟[1] 

机构地区：[1]浙江大学流体传动及控制国家重点实验室,杭州310027

出　　处：《机械工程学报》2003年第1期84-88,共5页Journal of Mechanical Engineering

基　　金：国家自然科学基金资助项目(50205024)。

摘　　要：提出一种新原理的节能型液压系统,其核心是一套压力变换装置,称为开关液压源。开关液压源的输入端直接挂在液压总线上,通过高速开关方式加以升压或降压增流,最终输出与各执行器需求相适应的压力和流量,最大限度地降低节流损失,达到最佳节能效果。A new energy saving hydraulic system is put forward, in which a pressure convert device named switchmode hydraulic power supply is introduced. The entrances of switchmode hydraulic power supplies are all connected with the hydraulic power bus. Their output pressure could be boosted or bucked through PWM control to provide the proper consumed pressure and flow rate of each actuator. The throttle lost is decreased considerably, and the energy saving efficiency is optimal.

关 键 词：液压系统 液压总线 开关液压源 降压增流 液感 溶容 动态效率 瞬态效率 

分 类 号：TH137[机械工程—机械制造及自动化]