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US 6,338,363 B1Granted
Energy attenuation device for a conduit conveying liquid under pressure, system incorporating same, and method of attenuating energy in a conduit
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An energy attenuation device for a conduit conveying a liquid under pressure, a system incorporating same, and a method for attenuating energy in a conduit, are provided. The device includes a conduit, a restrictor disposed in the conduit and dividing the interior thereof into an inlet chamber and an outlet chamber, and a first tube disposed in one of the chambers, wherein an annular space is formed between the inner peripheral surface of the conduit and an outer peripheral surface of the tube. One end of the tube is connected to and in fluid communication with the restrictor or with the inlet or outlet end of the one chamber, and the other, free end of the tube is spaced by an open gap from the inlet or the outlet end of the one chamber or from the restrictor. The tube has at least one aperture in the free end and/or on the peripheral surface thereof for providing fluid communication between the tube and the one chamber.
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