Patent ID: 7946383

Claim:
A system for reducing an acoustic load of a fluid flow, comprising: a first pipe, the first pipe comprising a first end and a second end and a first aperture and a second aperture, the first and second apertures being intermediate the first and second ends of the first pipe; a second pipe, the second pipe comprising a first end and a second end and a third aperture intermediate the first and second ends of the second pipe, the second pipe being connected at its first end to the first pipe at the first aperture and unconnected to the first pipe at its second end; a bypass pipe, the bypass pipe comprising a first end connected to the second aperture of the first pipe and a second end connected to the third aperture of the second pipe, wherein a first flow path is defined between the first aperture of the first pipe and the third aperture of the second pipe and a second flow path is defined by the bypass pipe, wherein a length of the first flow path is a fraction of a wavelength of an acoustic load generated in the second pipe by a main flow in the first pipe, and a length of the second flow path is a second fraction of the wavelength.