| 摘要 |
The levels of the oil in an oil consumption apparatus (20) and an auxiliary tank (30) drops/rises according to the consumption/supply the oil as much as the difference of two contact positions (a,b) which are turned on/off by floaters (43,43') inserted to guide pipes (41,41'). When the level drops to b point, a low contact (Ss) switches on and an output of a RS flip-flop (FF) becomes high state so that a transistor (Tr) is turned on to drive a relay (Ry) and solenoid valve (SV) for the oil to be supplied. When the level rises to a point, the solenoid valve is closed to shut down the oil supply.
|
