ENGINE PERFORMANCE ANALYZER USING SIMULATED LOAD

摘要

A simulated load is applied to an internal combustion engine while testing apparatus analyzes the overall performance of the engine. The simulated load is effected by periodically interrupting the engine ignition to reduce the total developed power of the engine to a value equal to its frictional horse power at the resulting engine speed. The firing ratio of the interruption cycle is preset to a fixed value to allow engine operation under full throttle conditions within acceptable engine speed limits. The difference between the resulting speed and a predetermined test speed provides a criterion for the overall performance evaluation of the internal combustion engine.