Pipes and tubular conduits – With flow regulators and/or baffles – Restrictors
Patent
1974-05-15
1976-09-07
Cohan, Alan
Pipes and tubular conduits
With flow regulators and/or baffles
Restrictors
1376253, 137501, 251127, F16K 4708, F15D 102
Patent
active
039788911
ABSTRACT:
Quieting means for a fluid flow control device is shown in connection with a typical spool type throttling valve. The quieting means consists of a stack of washer-like members or disks which cooperate to define a large number of finely-divided flow paths across the stack of disks. To provide a configuration which is very economical of space, the disks are arranged such that the flow path turns back and forth through different planes. Groups of flow paths are defined by a number of groups of three perforated disks confined between two imperforate disks. Two perforated disks having patterns of slots are positoned on opposite sides of a similar disk having a pattern of small orifices. By proper juxtaposition of the three disks, a circuitous flow pattern is established from a first chamber defined by a first slot and its side walls, axially through one or more orifices to a second such chamber, substantially radially through said second chamber and axially in the opposite direction to another such chamber and continuing in this manner across the stack of disks. The dimensions of the slots and orifices are chosen such that the velocity of flow through any orifice does not exceed a desired limit.
REFERENCES:
patent: 1790854 (1931-02-01), Defrance et al.
patent: 3529628 (1970-09-01), Cummins
patent: 3692064 (1972-09-01), Hohnerlein et al.
patent: 3802537 (1974-04-01), White
patent: 3856049 (1974-12-01), Scull
Cohan Alan
Michalsky Gerald A.
Smith Robert C.
The Bendix Corporation
Thornton William F.
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