发明申请
- 专利标题： DEVICE FOR SUPPLYING VENTILATION AIR TO THE LOW PRESSURE BLADES OF A GAS TURBINE ENGINE
- 专利标题（中）： 将通风空气供给气体涡轮发动机低压叶片的装置
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申请号： US12167541申请日： 2008-07-03
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公开(公告)号： US20090304495A1公开(公告)日： 2009-12-10
- 发明人: Jacques Rene Bart , Didier Rene Andre Escure , Stephane Rousselin
- 申请人： Jacques Rene Bart , Didier Rene Andre Escure , Stephane Rousselin
- 申请人地址： FR Paris
- 专利权人： SNECMA
- 当前专利权人： SNECMA
- 当前专利权人地址： FR Paris
- 优先权： FR0704918 20070706
- 主分类号： F02C7/12
- IPC分类号： F02C7/12
摘要：
The present invention relates to a device for supplying ventilation air to a turbine rotor of a gas turbine engine comprising a first and a second turbine disk (11, 12) and a downstream shell ring (14) together forming a one-piece drum, the second turbine disk (12) comprising cavities machined in the rim (12J) to house the turbine blades (6), the blades being axially retained by axial retaining segments (18, 18′). The device is one wherein at least one drilling (12P) is made in the shell ring (14) downstream of the rim (12J) placing the inside of the drum in communication with at least some of said cavities, a passage (18P; 18′P) being formed in the segments (18; 18′).