Water drain system for fuel filter, has electrical pump activation control unit to activate decantation time delay to permit water and fuel separation and to control activation of pump during another time delay to drain water

摘要

The system has an electrical pump activation control unit (8) for activating a decantation time delay, when engine shifts from a working state to a halt state, to permit water and fuel separation in a water collection zone (2) of a fuel filter. The unit controls activation of an electrical pump (7) during another time delay to drain water, when a detection device transmits a signal indicating presence of water in the zone.