High-stability valve arrangement for a governor valve
Номер патента: EP1334300A2
Опубликовано: 13-08-2003
Автор(ы): James R. Hardin
Принадлежит: Elliott Turbomachinery Co Inc, Elliott Turbomachinery Ltd
Опубликовано: 13-08-2003
Автор(ы): James R. Hardin
Принадлежит: Elliott Turbomachinery Co Inc, Elliott Turbomachinery Ltd
Реферат: A valve arrangement (10) for reducing the instability of fluid flow in a compressible flow governor valve includes a cutoff plug (12) with a lateral concave surface (14) and an end portion (16) having a substantially circular cross section, and a seat (30) with a convex surface (32). The lateral concave surface (14) and the end portion (16) of the cutoff plug (12) define an abrupt cutoff corner (18). The radius (re) of the end portion (16) of the cutoff plug (12) is less than the radius (Rs) of the seat (30). The radius of curvature (R) of the seat (30) is less than the radius of curvature (rq) of the lateral concave surface (14) of the cutoff plug (12). The configuration of the cutoff plug (12) and seat (30) enhances the annular flow pattern beneath the cutoff plug (12) at all lift positions thus reducing flow instability.
High-stability valve arrangement for a governor valve
Номер патента: EP1334300A4. Автор: James R Hardin. Владелец: Elliott Turbomachinery Co Inc. Дата публикации: 2005-06-15.