FLUID FLOW CONTROL DEVICE

摘要

PROBLEM TO BE SOLVED: To generate energy loss in fluid of high pressure with no reaction of shock wave without raising speed in a fluid flow control device. SOLUTION: Pairs of annular disc members 32 having fluid flow passages together form radial flow passages for fluid between the interior of a stack 14 of the disc members and its radially outer circumference. This passages have a smaller cross-section at a midregion of the disc member 32 than at the radially inner or outer side of the disc member 32.