FILTERING ARRANGEMENT FOR GAS PATH Russian patent published in 1997 - IPC

FIELD: gas filtration equipment. SUBSTANCE: arrangement is designed for gas paths operated at high temperatures. Arrangement has casing with axisymmetric mouth wherein helicoidal insert is mounted formed by random distribution of wire curvings in space. Helicoidal insert is made in the form of truncated cone and its mouth, wherein helicoidal insert is mounted, is step-shaped and has annular ledge. Helicoidal insert is in partial contact with side surface of annular ledge, and its end from the gas feed side bears an axisymmetric cavity. Diameter of helicoidal insert cross-section in the plane of closed end of cavity is equal to diameter of path from the gas feed side, minimum cavity diameter and maximum helicoidal insert diameter being of quite definite values. EFFECT: improved structure. 2 dwg