Prof. (Dr.) Bharat Raj Singh of School of Management Sciences, Lucknow and Prof. Onkar Singh of Harcourt Butler Technological Institute, Kanpur, UP developed and air turbine engine with capacity to generate 5.5 HP (4.1 KW) power by using compressed air as fuel. The air engine measuring 100 mm in outer casing diameter, 75 mm in rotor diameter and 35 mm in width can run a motor bike for 40 minutes using compressed air at 4-6 bar (60-90 psi) pressure. The load test conducted in the lab showed that the engine runs at 2,000-3,000 rpm with load and 10,000 rpm without load. The unique zero emission air engine featured in Patent, Journal of Govt. of India on April 13, 2012. Air-O-Bike, a motorcycle fitted with their concept air turbine engine, was exhibited before President of India at Lucknow on May 10, 2013.
