Seal for sealing between components of a rotary machine
Номер патента: GEP20074246B
Опубликовано: 26-11-2007
Автор(ы): Siegfried Geldenhuys
Принадлежит: Weir Minerals Africa Pty Ltd
Опубликовано: 26-11-2007
Автор(ы): Siegfried Geldenhuys
Принадлежит: Weir Minerals Africa Pty Ltd
Реферат: In a casing of a rotary machine, cast components are sealingly mounted together by means of seals accommodated in (semi-) enclosed cavities. A ring seal 40 includes an annular base 44 and an annular skirt 42 extending axially from the base. To ameliorate manufacturing tolerances, the seal defines circumferentially spaced, intermittent cavities to allow seal material to be deformed into the cavities as required. Land areas 48 between cavities have cross-sectional surfaces increasing progressively from a free surface of small area to cause compressive force required for deformation to increase exponentially with an exponent larger than 1. The cavities may be peripherally spaced, being open at a radially outer surface of the seal. The seal may be of elastic material which may be incompressible. The skirt may taper away from the base. The base may have a projecting sealing lip. The skirt may have, at a free end, a slanted, peripheral lip.
Sealing between components of a rotary machine
Номер патента: CA2497253C. Автор: Siegfried Geldenhuys. Владелец: Weir Minerals Africa Pty Ltd. Дата публикации: 2011-11-01.