Abstract: An energy attenuation device for a fluid-conveying line, and a method for attenuating energy in such a line, are provided. The device includes one or more hose sections disposed in the fluid-conveying line, and at least one spring disposed in at least a portion of each of the hose sections.

Abstract: An energy attenuation apparatus for a system conveying a liquid under pressure is provided. The apparatus includes a liquid-conveying unit or the like that includes three chambers disposed in series. At least one of the chambers contains no tube. A first tube is disposed in one of the chambers and has a first end connected to and in fluid communication with an inlet or outlet end of its chamber. A second, free end of the tube is spaced by an open gap from the outlet or inlet end of such chamber. 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 its chamber. A second tube can be disposed in the remaining chamber.

Abstract: An energy attenuation apparatus for a system conveying a liquid under pressure is provided. The apparatus includes a liquid-conveying unit or the like that includes three chambers disposed in series. At least one of the chambers contains no tube. A first tube is disposed in one of the chambers and has a first end connected to and in fluid communication with an inlet or outlet end of its chamber. A second, free end of the tube is spaced by an open gap from the outlet or inlet end of such chamber. 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 its chamber. A second tube can be disposed in the remaining chamber.

Abstract: 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.

Abstract: An energy attenuation apparatus for a system conveying liquid under pressure, and a method for attenuating energy in such a system, are provided. The apparatus includes a hose or tubular casing having an inlet opening for receiving liquid from the system, and an outlet opening for returning the liquid to the system. An inlet conduit extends concentrically into the hose or tubular casing, with an annular space being formed between the inlet conduit and the tubular casing. At least one aperture for introducing liquid into the annular space from the inlet conduit is provided on a portion thereof that is disposed in the tubular casing.

Abstract: An energy attenuation apparatus for a system conveying liquid under pressure is provided, wherein the apparatus is disposed in a liquid conveying line of said system. A restrictor or tubing section is disposed in a hose and divides the interior thereof into an inlet chamber and an outlet chamber that communicate with one another. A first tuning cable of polymeric material is disposed in the inlet chamber, with a first end of the tuning cable being connected to the inlet end of the inlet chamber for receiving liquid from the system, while a second open end of the tuning cable is spaced from the outlet end of the inlet chamber for conveying liquid thereto. A second tuning cable of polymeric material is disposed in the outlet chamber, with a first end of the tuning cable being connected to the restrictor or tubing for receiving the liquid, while a second open end of the tuning cable is spaced from the outlet end of the outlet chamber for conveying the liquid thereto.

Abstract: An energy attenuation device for a fluid-conveying line, and a method for attenuating energy in such a line, are provided. The device includes one or more hose sections disposed in the fluid-conveying line, and at least one spring disposed in at least a portion of each of the hose sections.

Abstract: An energy attenuation device for a fluid-conveying line, and a method for attenuating energy in such a line, are provided. The device includes one or more hose sections disposed in the fluid-conveying line, and at least one spring disposed in at least a portion of each of the hose sections.

Abstract: An energy attenuation apparatus for a system conveying liquid under pressure, and a method for attenuating energy in such a system, are provided. The apparatus includes a hose or tubular casing having an inlet opening for receiving liquid from the system, and an outlet opening for returning the liquid to the system. An inlet conduit extends concentrically into the hose or tubular casing through the inlet opening thereof, with an annular space being formed between the inlet conduit and the tubular casing. At least one aperture for introducing liquid into the annular space from the inlet conduit is provided on a portion thereof that is disposed in the tubular casing.

Abstract: An energy attenuation apparatus for a system conveying liquid under pressure, and a method for attenuating energy in such a system, are provided. The apparatus includes a housing containing at least one chamber, wherein an inlet conduit extends into the at least one chamber, a portion thereof being disposed in the housing and having at least one aperture for introducing liquid therefrom into the at least one chamber of the housing, and wherein an outlet conduit extends out of the at least one chamber, with a portion thereof being disposed in the housing and having at least one aperture for receiving liquid from the at least one chamber of the housing.

Abstract: An energy attenuation apparatus for a system conveying liquid under pressure, and a method for attenuating energy in such a system, are provided. The apparatus includes a housing containing at least one chamber, wherein an inlet conduit extends into the at least one chamber, a portion thereof being disposed in the housing and having at least one aperture for introducing liquid therefrom into the at least one chamber of the housing, and wherein an outlet conduit extends out of the at least one chamber, with a portion thereof being disposed in the housing and having at least one aperture for receiving liquid from the at least one chamber of the housing.

Abstract: An energy attenuation device for a conduit conveying liquid under pressure, a system incorporating same, and a method for attenuating energy in a conduit, are provided. The device includes a conduit that is disposed in or is part of the liquid-conveying conduit, wherein a chamber having an inlet end and an outlet end is formed in the conduit. Two separate tubes are disposed in the chamber of the conduit such that a respective annular space is provided between an inner peripheral surface of the conduit and an outer peripheral surface of each of the tubes, wherein at least one of the tubes has at least one hole in the outer peripheral surface thereof to allow communication between the interior of the tube and the chamber.

Abstract: An energy attenuation apparatus for a system conveying liquid under pressure, and a method for attenuating energy in such a system, are provided. The apparatus includes a housing containing at least one chamber, wherein an inlet conduit extends into the at least one chamber, a portion thereof being disposed in the housing and having at least one aperture for introducing liquid therefrom into the at least one chamber of the housing, and wherein an outlet conduit extends out of the at least one chamber, with a portion thereof being disposed in the housing and having at least one aperture for receiving liquid from the at least one chamber of the housing. The ratio of the diameter of the housing to the diameter of the inlet or outlet conduit is at least 2:1.