| 摘要 |
PURPOSE:To improve the detection accuracy and the safety of the title detector constituting the title combustion state detector to detect firing, misfire and extraordinary combustion at the time of a low combustion state, and further to detect an oxygen deficient state at the time of a high combustion sate. CONSTITUTION:With the start of combustion, the detected temperature and the set temperature are stored in a microcomputer 27 which determines the level of combustion according to a program. When the room temperature is high, a low combustion is set, and when the room temperature is low, a high combustion is set. At the time of the low combustion, a first timer 39 is started, and a second timer 40 is started to change the low combustion forcibly to a high combustion. Then, a detection signal from combustion state detecting means 32 is inputted to judging means 33. The combustion state judging means 33 detects misfire, ignition and extraordinary combustion level, the means 33 further detects the oxygen deficient level at the high combustion time, and outputs a signal to combustion control means 31 to control the combustion. By this constitution, the safety of the detector can be improved. |
