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HYDRAULIC ENERGY SAVING CONTROL SYSTEM FOR FORKLIFT AND METHOD FOR LOWERING THE OPERATING ENERGY CONSUMPTION FOR FORKLIFT TRUCKS
HYDRAULIC ENERGY SAVING CONTROL SYSTEM FOR FORKLIFT AND METHOD FOR LOWERING THE OPERATING ENERGY CONSUMPTION FOR FORKLIFT TRUCKS
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机译：叉车液压节能控制系统及降低叉车工作能耗的方法
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摘要
The present invention discloses a hydraulic energy-saving control system for lift trucks comprising a steering device (7) and an operating valve (6), a first variable displacement pump (1) having a load feedback signal receiving terminal connected to the load feedback signal output terminal of the steering device and the load feedback signal output terminal is connected to the operating valve, wherein the oil discharge port of the first variable displacement pump is connected to the oil inlet port of the steering device and the oil input port of the operating valve; a second variable displacement pump (2), the oil discharge port is connected to the oil inlet port of the operating valve; and a control unit which is connected to the second variable displacement pump. In the method for reducing the operating power consumption for forklifts is therefore that during operation of the steering device and / or the operating valve, the first variable displacement pump takes over the supply of the steering device and / or the operating valve of the forklift, wherein, during high flow rate requirements of the operating valve of the forklift, the second variable displacement pump takes over in common with the first variable displacement pump, the supply of the operating valve with oil.
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