Energy attenuation apparatus for a system conveying liquid under pressure and method of attenuating energy in such a system

An energy attenuation apparatus for a system conveying liquid under pressure, wherein said apparatus is disposed in a liquid conveying means of said system, said apparatus comprising:

• two outer hose means, each of which defines a chamber having an inlet end and an outlet end;
• tubing means interconnecting said two hose means, wherein said chambers communicate with one another via said tubing means;
• a first tuning cable means of polymeric material disposed in one of said chambers, wherein said first tuning cable means has a first end connected to said inlet end of said one chamber for receiving said liquid from said system, and a second open end that is spaced from said outlet end of said one chamber for conveying said liquid thereto;
• and
• a second tuning cable means of polymeric material disposed in the other of said chambers, wherein said second tuning cable means has a first end connected to said tubing means for receiving said liquid, and a second open end that is spaced from said outlet end of said other chamber for conveying said liquid thereto.

An energy attenuation apparatus for a system conveying liquid under pressure, wherein said apparatus is disposed in a liquid conveying means of said system, said apparatus comprising:

• an outer hose means;
• restrictor means disposed in said hose means and dividing the interior of said hose means into an inlet chamber and an outlet chamber that communicate with one another via said restrictor means, wherein each of said chambers has an inlet end and an outlet end;
• a first tuning cable means of polymeric material disposed in said inlet chamber, wherein said first tuning cable means has a first end connected to said restrictor means for conveying said liquid thereto, and a second open end that is spaced from said inlet end of said inlet chamber for receiving said liquid from said system;
• and
• a second tuning cable means of polymeric material disposed in said outlet chamber, wherein said second tuning cable means has a first end connected to said outlet end of said outlet chamber for conveying said liquid thereto, and a second open end that is spaced from said restrictor means.

An energy attenuation apparatus for a system conveying liquid under pressure, wherein said apparatus is disposed in a liquid conveying means of said system, said apparatus comprising:

• two outer hose means, each of which defines a chamber having an inlet end and an outlet end;
• tubing means interconnecting said two hose means, wherein said chambers communicate with one another via said tubing means;
• a first tuning cable means of polymeric material disposed in one of said chambers, wherein said first tuning cable means has a first end connected to said tubing means for conveying said liquid thereto, and a second open end that is spaced from said inlet end of said one chamber for receiving said liquid from said system;
• and
• a second tuning cable means of polymeric material disposed in the other of said chambers, wherein said second tuning cable means has a first end connected to said outlet end of said other chamber for conveying said liquid thereto, and a second open end that is spaced from said tubing means.