| 摘要 |
PCT No. PCT/IL97/00290 Sec. 371 Date Aug. 18, 1998 Sec. 102(e) Date Aug. 18, 1998 PCT Filed Sep. 1, 1997 PCT Pub. No. WO98/53234 PCT Pub. Date Nov. 26, 1998A fluid flow control valve which includes a fluid flow conduit with one or more fluid inlets and one or more fluid outlets, and with one or more discrete magnetic elements located within the conduit that are positioned by means of a number of selectably activated electromagnets located in association with the conduit. The magnetic element or elements can preferably be positioned either to close fluid flow by engaging a predetermined fluid inlet or outlet thereby to block fluid flow therethrough or to open fluid flow by not blocking fluid flow therethrough.
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