Valves and valve actuation – With material guide or restrictor – Baffle or zigzag flow restrictor
Patent
1975-05-09
1977-02-15
Rosenthal, Arnold
Valves and valve actuation
With material guide or restrictor
Baffle or zigzag flow restrictor
138 41, F16K 4708
Patent
active
040079082
ABSTRACT:
Sinuous passage method and means of attenuating the noise generated by the expansion of a fluid through a valve. A winding-passage-incorporating tubular element provided between the valve and the downstream pipe. For attenuating the noise generated by a pressure reducing valve, or other fluid expanding restriction, a device having its inlet end substantially engaging the downstream face of the valve, and comprising a tubular element enclosing a plurality of lengthwise partitions, and between said partitions a plurality of transverse, flow deflecting means defining with said partitions a plurality of individual, continuous, zigzag passages. For reducing the noise generated by control valves, a wire grille spanning the downstream passage and comprising one or more transverse layers of generally uniformly spaced wires extending generally in one transverse direction, alternating with one or more transverse layers of generally uniformly spaced wires extending generally in another transverse direction, the alternate, successive layers rigidly joined together at the points of wire overlapping, any successive two of said layers combining to complete a multiplicity of wire mesh openings, and said layers extending in one or both said transverse directions being successively transversely displaced whereby said openings successively define a continuously winding path for said fluid.
REFERENCES:
patent: 1868708 (1932-07-01), Hunt
patent: 3724502 (1973-04-01), Hayner
patent: 3731903 (1973-05-01), Webb et al.
patent: 3792609 (1974-02-01), Blair et al.
Smagghe Paul V.
Villier Raymond B.
Masoneilan International Inc.
Rosenthal Arnold
Townsend Robert A.
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