Automatically monitoring and optimising fuel injection for Diesel engine - using ultrasonic emission analysis for each cylinder with evaluation and comparison of indices derived from sonic converter during fuel atomising

摘要

The indices L asterisk = the square root of DELTA PHI/DELTA N asterisk and L = the square root of DELTA t/DELTA N from the measured number of amplitude values exceeding threshold value UD of the alternate voltage emitted from the sonic converter during fuel atomising or a part of this together with the phase angle or duration DELTA PHI and DELTA t should be a direct measure of the average droplet mass or a value derived from this in the phase angle or duration concerned. The indices S asterisk = the square root of DELTA N asterisk . DELTA PHI and S = the square root of DELTA N . DELTA PHI are a direct measure for the atomised fluid mass or its derived value in the partic. phase angle or duration. These indices are determined, compared and evaluated on each cylinder of a diesel engine for monitoring purposes. USE/ADVANTAGE - Fuel injection practice. Sonic converter output voltage excess values and phase angle and duration used to optimise fuel consumption for economy in fuel, repairs and motor behaviour.