| 摘要 |
PURPOSE:To prolong the combustion time as long as possible and to improve the convenience for use of the combustion tool by a procedure in which a microcomputer calculates the time in accordance with the combustion state and stops the combustion after a predetermined time. CONSTITUTION:A microcomputer 14a which forms a main body of a conrol circuit 15a discriminates whether a strong combustion is carried out or not after a float switch 10 opens a contact. When it is a strong combustion, the microcomputer 14a stores the time t1 as it is. When it is a weak combustion, a time t2 which is equal to combustion time t1X(weak combustion quantity)divided by (strong combustion quantity) is added to the combustion time t1. The total of these times is compared with a time T when the strong combustion is carried out as a whole, and when the former exceeds the latter, the combustion is stopped. Accordingly, the time when the combustion is stopped is a time when the remaining oil level constantly assumes the position of C. Since the combustion stop time consantly varies depending on the combustion condition in this manner, it becomes possible to burn the combustion tool for a long time as a whole. |
