本文针对XS—ZY—125型塑料注射成型机，分析了现行通用的双联泵供油液压系统耗能大的原因。
The paper analyzes the reason for more power consumption of conventional dual vane pump system set in model XS—ZY—125 plastic injection forming machines.
并以典型双泵供油液压系统为例，介绍新回路的应用。
Meanwhile, this thesis introduces application of the new circuit in typical hydraulic system of double pumps.
通过对液压系统供油回路的信号测试过程及信息融合方案的设计分析，阐明了液压系统故障检测和诊断的实现过程。
Through study of the testing technique for oil feed circuit and designing principle of data fusion, the realization of fault test and diagnosis for hydraulic system was illustrated.
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