MUFFLER OF HYDRODYNAMIC NOISE IN PIPELINE Russian patent published in 2014 - IPC F16L55/33 

FIELD: machine building.

SUBSTANCE: device is designed for muffling of hydrodynamic noise sent along liquid medium filling the pipelines. It comprises a metal body with an elastic element, communicated with a pipeline by means of a neck. The elastic element is made in the form of hollow metal discs with bases in the form of membranes arranged in the metal body. Hollow metal discs are arranged in the body concentrically, at the same time there are central holes in them for placement of the neck, which is arranged as detachable, with the possibility of replacement for necks of different length. The metal body is installed on the pipeline by means of its coverage, and in the area of the coverage in the pipeline there are holes, some of which are equipped with plugs for provision of additional tuning of the muffler.

EFFECT: high sound-insulating efficiency in entire range of hydrostatic pressures of working liquid with unified dimensions of a device.

3 cl, 3 dwg