Air feed apparatus operating with vacuum in internal combustion engines

Abstract

In the internal combustion engines the technique of air feed operating with vacuum is important in view of the meeting of increasing and decreasing air-oxygen demand varying according to the change of revolution. While causing engine failure and increase of heat at low revolution with excess air-oxygen, it causes high fuel consumption at high revolution with less air-oxygen. In order for the fuel to be fully combusted, it provides sufficient air-oxygen during all revolutions, from the lowest to the highest, in correct proportion with the suction of the vacuum by the engine.

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