Hydraulic clatter damping device and its application to valves a

Details Hydraulic clatter damping device and its application to valves a Hydraulic clatter damping device and its application to valves a

1987-03-11

1988-08-16

Fuller, B. R.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181233, F16K 4702

Patent

active

047637544

ABSTRACT:
Hydraulic clatter damping device consisting of a piston mechanically connected to a valve spindle and sliding within a closed composite chamber (20) consisting of two sub-chambers arranged on either side of the piston, namely, a large sub-chamber (23) in the upper part and a compression chamber (24) in the lower part, both chambers being filled with the same hydraulic fluid under pressure, the piston being provided with a hollow deformable body filled with a gaseous fluid, being rigidly connected to its free face in the large sub-chamber and contracted during rest by the pressure prevailing in the sub-chambers. The sub-chambers communicate with a thin-walled nozzle (26), the chamber containing the hollow body comprising a visual communication means which permits its upper face to be observed. The invention relates to the manufacture of safety valves and other safety components.

REFERENCES:
patent: 2829669 (1958-04-01), Luzynski

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