Valves and valve actuation – With material guide or restrictor – Baffle or zigzag flow restrictor
Patent
1995-12-22
1998-06-30
Rivell, John
Valves and valve actuation
With material guide or restrictor
Baffle or zigzag flow restrictor
251118, 138 42, 181268, F16L 55207
Patent
active
057721785
ABSTRACT:
A rotary noise attenuating valve is provided which utilizes noise attenuation technology previously utilized with linear valves. The arrangement includes an impedance assembly in which the area with the impedance assembly which is accessed by the flow downstream of a rotary closure element flow is varied upon opening of the rotary closure element, with an interface assembly disposed between the rotary closure element and the impedance assembly. As a result, benefits previously realized only in linear valves are attainable utilizing a rotary valve, while the benefits attendant to rotary valves (such as greater capacity, variable .DELTA.p and/or minimum .DELTA.p under max flow) are also attainable.
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One (1) page brochure--Drag 100 V/VS Control Valves Control Components Inc, date unknown.
Rivell John
Rotatrol AG
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