Turbine frame stiffening rails
US5483792A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1994 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Aug 2, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D25/162
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbine frame includes outer and inner coaxially disposed annular casings having a plurality of circumferentially spaced apart struts extending therebetween is provided with at least one and preferably two axially spaced apart polygonal stiffening rails, a forward rail and an aft rail, circumferentially disposed on the outer annular casing. The rails have at least a first section with a constant cross-sectional area normal to the casing in a circumferential direction around the outer casing, a linear centroid distribution of the cross-sections in the circumferential direction, and the centroids lie in a first plane P1 which is parallel to and spaced apart from a second plane P2 that is tangential to the outer casing mid-way between adjacent struts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.