发明授权
- 专利标题： Casing distortion control for rotating machinery
- 专利标题（中）： 旋转机械套管变形控制
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申请号： US580694申请日： 1995-12-29
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公开(公告)号： US5605438A公开(公告)日： 1997-02-25
- 发明人: Steven S. Burdgick , John R. Hess , Gary D. Mercer , Gregory A. Crum , James E. Cencula , John A. Eastman
- 申请人： Steven S. Burdgick , John R. Hess , Gary D. Mercer , Gregory A. Crum , James E. Cencula , John A. Eastman
- 申请人地址： NY Schenectady
- 专利权人： General Electric Co.
- 当前专利权人： General Electric Co.
- 当前专利权人地址： NY Schenectady
- 主分类号： F01D25/14
- IPC分类号： F01D25/14 ; F01D25/24 ; F01D25/26
摘要：
A turbine casing is provided in two casing halves joined one to the other along a horizontal splitline having flanges with spaced boltholes. A circumferentially extending rib is provided about each casing half at a location just forward of the turbine buckets to minimize or eliminate distortion caused by internal pressure and meridional roll of the casing. One or more axially extending ribs is provided on each casing half. The axial ribs have a radial stiffness which substantially matches the stiffness and thermal response of the flanges.