| 摘要 |
PURPOSE:To make the structure simple and compact and to make it possible to perform accurate detection, by attaching a sensor in the inside of an air reservoir, and detecting the change in liquid level by the change in liquid level in the air reservoir. CONSTITUTION:A switch 6 is set at an AUTO position. Then bilge water 5 is inputted into a reservoir 45 by an amount, which balances with an air pressure in the air reservoir 45, by the increase in the bilge water 5. Owing to the inputted bilge water 5, a self-heating type heat sensitive element TH is cooled, and a motor 1 and a pump 2 are operated. Therefore, the bilge water 5 in the reservoir 45 tends to flow in the direction of a hose 48. However, a mushroom valve 44 is closed and the bilge water cannot flow out. When the bilge water 5 is decreased and air flows into a water sucking port 4, the sucking force of the pump 2 does not act on the valve 44, and the valve is released. Then the bilge water 5 in the reservoir 45 flows out, temperature of the element TH is increased, and the motor 1 and the pump 2 are stopped. |
