Tuesday 07th of February 2012

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Ultrasonic Air Charger
Vacuum build-up in the inlet manifold during idle on most vehicles including turbo engine is around -50 kPa (-19.51bf/in sq). During overrun and light acceleration conditions in most normal aspirated and turbo engines, vacuum levels of up to -80 kPa (-31.21bf/in sq) can be expected.
During overrun with the throttle valve at say 10% open a vacuum of minus -75 kPa will cause 20% to 25% more air through the throat valve than a vacuum of -50 kPa. All of this is happening when the engine is not performing any work; i.e. driving downhill, slowing down to stop or whenever you are reducing sped for whatever reason. The end result is the gradual stopping of the engine known as "engine braking".
The Ultrasonic Air-Charger makes use of the vacuum build-up in the induction manifold to create Ultrasonic vibration in the inducted air inside the induction manifold.This vibration, which is inaudible to the human ear ripples into the combustion chamber of the engine, as the air is being suck into the combustion chamber together with the energized fuel.

 
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