pumping loss

基本解释

Engineers call this condition a pumping loss, because in essence an engine is an air pump.
工程师称这种情况是泵气损失，因为发动机在本质上是一个空气泵。
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The result is a reduction in the pumping loss under light loads, which translates to better response and fuel economy.
结果是轻负荷的泵气损失减少，这意味着更好的响应和燃油经济性。
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Exhaust gas trap(EGT) is more effective strategy for mixture dilution and heating, and it is beneficial to reduce pumping loss and fuel consumption than exhaust gas recirculation(EGR).
废气滞留比传统的废气再循环具有更好的稀释和加热混合气作用，有利于减小汽油机中小负荷泵气损失，降低油耗。

Pumping ozone gas into four of its storage rooms reduced the loss from decay to below 2% in 2007.
FORBES: Magazine Article

泵气损失
The traditional gasoline engine regulates inflow gas by throttle. At low load condition large pumping loss leads to high rate of fuel consumption.
传统汽油机靠节气门调节进气流量,小负荷时节气门开度小、泵气损失大,导致燃油消耗率过高；配气机构的凸轮型线固定不变,不能兼顾全部工况下的进气需要。
机械工程
泵唧损失
泵吸损失
泵动损失
泵气损失