By achieving the right air pressure during different RPM levels, its power is on tap with all-round efficiency while effectively functioning as a fuel saving device.

实现了在不同转速对空气压力水平，其力量是自来水全面效率，同时作为一个有效运行的燃油节省装置。

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The testing results proved that the QH4 saving energy coasting device has a remarkable fuel-saving effect to any model of motor vehicles and at any road condition.

试验结果表明，QH 4型汽车节能滑行器对各种车型、道路条件都具有显著的节油效果。

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The utility model discloses a composite saving oil purifier for a petrol engine, which belongs to the internal-combustion engine fuel air conditioning device.

一种汽油机复合节油净化器属于内燃机燃料空气处理装置。

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