本发明涉及水冷发动机直接驱动液压泵的场合，实现节能降耗的目的。
The present invention relates to water cooled engine driving hydraulic pump directly and aims at lowering power consumption.
研究开发了混合动力电动车(HEV)中的辅助动力系统，采用一台小排量的发动机组成发电机组，既可以给电池组充电，发动机也可以直接驱动空调系统。
In this paper, the assistant power system of hybrid electrical vehicle (HEV) was an engine with small displacement, which could charge the battery and directly drive the air-conditioning system.
驱动器直接从发动机到后轮通过带。
Drive was direct from the engine to the rear wheel via belt.
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