| 摘要 |
A fluid flow regulator ( 20 ) comprising: a fluid inlet port ( 34 ) and a fluid outlet port ( 54 ); at least one open-faced flow control channel ( 60 ) defined by a planar bottom ( 62 ) and two side-walls ( 64 ) that communicates with the outlet port ( 54 ) at a junction ( 66 ) and has a cross-section that decreases with distance from the junction; an elastic diaphragm ( 40 ); a support shelf ( 58 ) on which the diaphragm ( 40 ) seats and which supports the diaphragm ( 40 ) along a planar contour parallel to the bottom of each of the at least one channel ( 60 ); wherein to regulate fluid flow, with increasing inlet fluid pressure the diaphragm ( 40 ) covers portions of the open face that are farther from the junction ( 66 ) in a region where the cross-section decreases with distance from the junction ( 66 ).
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