| 摘要 |
<p>A drain valve (102) for a fuel filter water separator (70) for an internal combustion engine has a first port (116) mating with the vent opening (100) of the separator (70), a second port (118) mating with the drain opening (98) of the separator (70) and a third port (120). The drain valve (102) is actuable between a closed position blocking communication of the first port (116) with the third port (120) and blocking communication of the second port (118) with the third port (120), and an open position providing communication of the first port (116) with the third port (120) and providing communication of the second port (118) with the third port (120). If the valve (102) is actuated to the open position when the engine is off, collected water and vent air each flow through the third port (120) but in opposite directions. If the drain valve (102) is actuated while the engine is running, pressurized fuel spray from the vent opening (100) and collected water from the drain opening (98) of the separator (70) each flow through the third port (120) in the same direction. <IMAGE></p> |
