Tesla Turbine was patented by Nikola Tesla in 1903.His
turbine used 22.5 cm disc and the entire rotor was 5 cm thick
producing 110 Horsepower and used steam as propulsive fluid.
Tesla pump was patented in 1909 which uses smooth rotating
disc on volute casing. Tesla conducted experiments of his
turbine between 1906 and 1914, and then there was little activity
on this field until a revival of interest began in the 50´s [1].