Reduction of Uneven Pace of Internal Combustion Engine FP10C by Flywheel Design Improvement

Abstract

The kinematics of operation of the crank mechanism elements gives rise to change of the presented moment of the internal combustion engine (ICE) inertia during the turn, which is often neglected. However, there is a number of tasks where it is required to take into account the change of the presented moment of the crank mechanism inertia. The authors proposed a design of the flywheel with a variable inertia moment for FP10C engine, which allows reducing the uneven pace significantly. As a result of experimental studies of a single-cylinder engine FP10C with a variable inertia moment flywheel and with a constant inertia moment flywheel, it was found that the variable inertia moment flywheel can significantly reduce the unevenness of the engine pace (up to 37.5%) and improve its fuel economy (up to 9.4%). This significantly reduced the energy of the crankshaft vibration processes, which results in the overall reduction of energy consumption.