| 摘要 |
<p>A flow control system (100) includes a substantially rigid vessel (110) with a process fluid reservoir (112) situated in the rigid vessel (110) is in fluid communication with an outlet (116). A movable member (120) and/or a working fluid is situated in the rigid vessel (110) so as to selectively expel proce ss fluid (122) from the outlet (116). Where a movable member (120) is employed, movement of the movable member (120) in a first direction causes process flu id (122) to be drawn into an inlet (114) and movement of the movable member (12 0) in a second direction causes process fluid (122) to be expelled from the outlet (116). In other implementations, the working fluid is metered into a working fluid reservoir (340) to compress a flexible process fluid reservoir (112) and expel process fluid (122) therefrom.</p> |
