Citat:
In a Velozeta engine, during the exhaust stroke, fresh air is injected into the cylinder, which expands by heat and therefore forces the piston down for an additional stroke. The valve overlaps have been removed and the two additional strokes using air injection provide for better gas scavenging. The engine seems to show 40% reduction in fuel consumption and dramatic reduction in air pollution.[7] Its specific power is not much less than that of a four-stroke petrol engine.[7] The engine can run on a variety of fuels, ranging from petrol and diesel to LPG. An altered engine shows a 65% reduction in carbon monoxide pollution when compared with the four stroke engine from which it was developed.[7]
The engine was developed in 2006 by a team of mechanical engineering students (Aaron Joseph George, Arun K Nair, Boby Sebastian, Krishnaraj U) of the College of Engineering, Trivandrum.