| 摘要 |
A noise suppressing device for use in flow lines in which a zone of reduced pressure is produced downstream of a restriction in the flowway, such as may be caused by the use of a flow regulating device such as a valve or orifice device in the line, and comprising means forming a passageway for the flow of fluid into said zone from a location of higher pressure. The location from which fluid flows into the reduced pressure zone may be either upstream or downstream from the zone in the flow line or from a source outside of the flow line, and means may be provided for regulating such flow. The method of the invention comprises the decreasing of noise in a flow line caused by the formation of a zone of reduced pressure therein through which fluid under pressure flows through the line, by introducing fluid into said zone at a higher pressure than the pressure in the zone.
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