Patent ID: 6189523
Filing Date: 2001-02-20
Classification: F02D,Y02T

Abstract:
A speed-governed power generation system comprising:a gaseous fueled stationary internal combustion engine having an air and fuel delivery apparatus in communication with a plurality of combustion chambers of said engine;a governor configured to adjust said air and fuel delivery apparatus in response to a first signal corresponding to a desired engine speed and a second signal indicative of an actual engine speed, said governor being further configured to output a third signal indicative of a governor output position;a control valve intermediate a supply of fuel and said air and fuel delivery apparatus;a computing device configured to generate an output signal for adjusting said control valve according to a selected one of a first control strategy and a second control strategy,wherein in said first control strategy said governor is further configured to output a third signal indicative of a governor output position, and said computing device is configured to generate said output signal in response to (i) said second signal; (ii) said third signal; (iii) a lean combustion control map; and (iv) a torque signal indicative of engine torque; and,wherein in said second control strategy said computing device is configured to generate said output signal in response to said second signal indicative of engine speed alone;wherein said control valve is responsive to said computing device output signal for adjustment of a fuel flow therethrough so as to obtain a ratio of air to fuel provided to the engine that is substantially at a lean misfire limit of the engine.