| 摘要 |
<p>A fluid metering device (30) preferably includes a substantially linear series of intermeshing gears (310, 314). The device includes an inlet port (340I-342I) adjacent the intermeshing portion of each pair of gears (310-313) within the series adjacent the point at which the pair of gears diverge. The device (300) further includes a discharge port (340D-342D) adjacent the intermeshing portion of each pair of gears within the series adjacent the point at which the pair of gears converge. The device (30) is configured to convey liquid from a main inlet stream of liquid, through the inlet ports (340I-342I), and out the discharge ports (140D-142D) at substantially equal rates. The device (30) preferably includes a pressure balance inlet port (344I-345I) and a pressure balance discharge port (344D-345D) adjacent the exterior portion of each end gear (310, 314) within the series of gears (310-314) for balancing forces exerted on the end gear (310, 314) by liquid passing through the various inlet and discharge ports (340I-342I, 340D-34dD).</p> |
