| 摘要 |
<p>A dual outlet washer pump for an automotive vehicle to alternately supply a stream of washer fluid to separate locations has a valve element (40) with a frame portion (56) surrounding a flat, flexible membrane (58) mounted in vertically plainer fashion in a discharge section (38), which is movable from a centre position unobstructing either of a pair of discharge ports (42,44) to a first position in which fluid flow from a pumping chamber (20) enters a first discharge side of the discharge section (38) to directly impact a first side of the membrane (58) causing flexure thereof away from the first discharge port to fluid flow there through and can currently causes contact of a second side of the membrane within an inner, lateral side of the discharge section (38) adjacent the second discharge port to block fluid flow therethrough, the membrane (58) opening the second discharge port and closing the first discharge port in the like manner when an impeller (22) is rotated in a counter direction. <IMAGE></p> |
