Some Tests on the Combustion in the NSU-Wankel Type Rotary Piston Engine

Abstract

This paper deals with the problem of combustion in the NSU-Wankel type rotary piston engine, and presents a summary of the test results. The authors conducted many tests using both 1-rotor engine and 2-rotor engines and cleared up the influences of variation of induction system, number of spark plugs, ignition timing and air-fuel ratio on combustion of fuel-air mixture in this new engine by measuring the gas pressure and flame speed by means of pressure indicators and ionization gaps, respectively.