Patent ID: 6015317
Filing Date: 2000-01-18
Classification: F01P,F02B,F02D,Y02T

Abstract:
An overheat detection system for an internal combustion engine having at least one combustion chamber, an intake system for supplying air to said combustion chamber and a fuel system for supplying fuel to said combustion chamber for combustion with said air, and a liquid cooling system including at least one coolant jacket into which coolant may be supplied for cooling at least a portion of said engine, said cooling system arranged to drain coolant from said coolant jacket when said engine is not running, said overheat detection system including a sensor for detecting a temperature in said cooling jacket and an overheat determining mechanism receiving an output from said sensor, said mechanism arranged to output an overheat detection signal when a sensed temperature exceeds a predetermine high temperature and means for preventing said signal from being output for a predetermined time after said engine is started to permit coolant to enter said cooling jacket upon restarting without issuing said signal.